eventespresso / event-espresso-core

core/admin/EE_Admin.core.php

Indentation +958 added lines, -958 removed lines

@@ -20,487 +20,487 @@ 
 final class EE_Admin implements InterminableInterface
 {
 
-    /**
-     * @var EE_Admin $_instance
-     */
-    private static $_instance;
-
-    /**
-     * @var PersistentAdminNoticeManager $persistent_admin_notice_manager
-     */
-    private $persistent_admin_notice_manager;
-
-    /**
-     * @var LoaderInterface
-     */
-    protected $loader;
-
-    /**
-     * @singleton method used to instantiate class object
-     * @return EE_Admin
-     * @throws EE_Error
-     */
-    public static function instance()
-    {
-        // check if class object is instantiated
-        if (! self::$_instance instanceof EE_Admin) {
-            self::$_instance = new self();
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * @return EE_Admin
-     * @throws EE_Error
-     */
-    public static function reset()
-    {
-        self::$_instance = null;
-        return self::instance();
-    }
-
-
-    /**
-     * class constructor
-     *
-     * @throws EE_Error
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    protected function __construct()
-    {
-        // define global EE_Admin constants
-        $this->_define_all_constants();
-        // set autoloaders for our admin page classes based on included path information
-        EEH_Autoloader::instance()->register_autoloaders_for_each_file_in_folder(EE_ADMIN);
-        // admin hooks
-        add_filter('plugin_action_links', array($this, 'filter_plugin_actions'), 10, 2);
-        // load EE_Request_Handler early
-        add_action('AHEE__EE_System__core_loaded_and_ready', array($this, 'get_request'));
-        add_action('AHEE__EE_System__initialize_last', array($this, 'init'));
-        add_action('AHEE__EE_Admin_Page__route_admin_request', array($this, 'route_admin_request'), 100, 2);
-        add_action('wp_loaded', array($this, 'wp_loaded'), 100);
-        add_action('admin_init', array($this, 'admin_init'), 100);
-        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'), 20);
-        add_action('admin_notices', array($this, 'display_admin_notices'), 10);
-        add_action('network_admin_notices', array($this, 'display_admin_notices'), 10);
-        add_filter('pre_update_option', array($this, 'check_for_invalid_datetime_formats'), 100, 2);
-        add_filter('admin_footer_text', array($this, 'espresso_admin_footer'));
-        add_action('load-plugins.php', array($this, 'hookIntoWpPluginsPage'));
-        // reset Environment config (we only do this on admin page loads);
-        EE_Registry::instance()->CFG->environment->recheck_values();
-        do_action('AHEE__EE_Admin__loaded');
-    }
-
-
-    /**
-     * _define_all_constants
-     * define constants that are set globally for all admin pages
-     *
-     * @return void
-     */
-    private function _define_all_constants()
-    {
-        if (! defined('EE_ADMIN_URL')) {
-            define('EE_ADMIN_URL', EE_PLUGIN_DIR_URL . 'core/admin/');
-            define('EE_ADMIN_PAGES_URL', EE_PLUGIN_DIR_URL . 'admin_pages/');
-            define('EE_ADMIN_TEMPLATE', EE_ADMIN . 'templates' . DS);
-            define('WP_ADMIN_PATH', ABSPATH . 'wp-admin/');
-            define('WP_AJAX_URL', admin_url('admin-ajax.php'));
-        }
-    }
-
-
-    /**
-     * filter_plugin_actions - adds links to the Plugins page listing
-     *
-     * @param    array  $links
-     * @param    string $plugin
-     * @return    array
-     */
-    public function filter_plugin_actions($links, $plugin)
-    {
-        // set $main_file in stone
-        static $main_file;
-        // if $main_file is not set yet
-        if (! $main_file) {
-            $main_file = plugin_basename(EVENT_ESPRESSO_MAIN_FILE);
-        }
-        if ($plugin === $main_file) {
-            // compare current plugin to this one
-            if (EE_Maintenance_Mode::instance()->level() === EE_Maintenance_Mode::level_2_complete_maintenance) {
-                $maintenance_link = '<a href="admin.php?page=espresso_maintenance_settings"'
-                                    . ' title="Event Espresso is in maintenance mode.  Click this link to learn why.">'
-                                    . esc_html__('Maintenance Mode Active', 'event_espresso')
-                                    . '</a>';
-                array_unshift($links, $maintenance_link);
-            } else {
-                $org_settings_link = '<a href="admin.php?page=espresso_general_settings">'
-                                     . esc_html__('Settings', 'event_espresso')
-                                     . '</a>';
-                $events_link = '<a href="admin.php?page=espresso_events">'
-                               . esc_html__('Events', 'event_espresso')
-                               . '</a>';
-                // add before other links
-                array_unshift($links, $org_settings_link, $events_link);
-            }
-        }
-        return $links;
-    }
-
-
-    /**
-     * _get_request
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function get_request()
-    {
-        EE_Registry::instance()->load_core('Request_Handler');
-        EE_Registry::instance()->load_core('CPT_Strategy');
-    }
-
-
-    /**
-     * hide_admin_pages_except_maintenance_mode
-     *
-     * @param array $admin_page_folder_names
-     * @return array
-     */
-    public function hide_admin_pages_except_maintenance_mode($admin_page_folder_names = array())
-    {
-        return array(
-            'maintenance' => EE_ADMIN_PAGES . 'maintenance' . DS,
-            'about'       => EE_ADMIN_PAGES . 'about' . DS,
-            'support'     => EE_ADMIN_PAGES . 'support' . DS,
-        );
-    }
-
-
-    /**
-     * init- should fire after shortcode, module,  addon, other plugin (default priority), and even
-     * EE_Front_Controller's init phases have run
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @throws ServiceNotFoundException
-     */
-    public function init()
-    {
-        // only enable most of the EE_Admin IF we're not in full maintenance mode
-        if (EE_Maintenance_Mode::instance()->models_can_query()) {
-            $this->initModelsReady();
-        }
-        // run the admin page factory but ONLY if we are doing an ee admin ajax request
-        if (! defined('DOING_AJAX') || EE_ADMIN_AJAX) {
-            try {
-                // this loads the controller for the admin pages which will setup routing etc
-                EE_Registry::instance()->load_core('Admin_Page_Loader');
-            } catch (EE_Error $e) {
-                $e->get_error();
-            }
-        }
-        add_filter('content_save_pre', array($this, 'its_eSpresso'), 10, 1);
-        // make sure our CPTs and custom taxonomy metaboxes get shown for first time users
-        add_action('admin_head', array($this, 'enable_hidden_ee_nav_menu_metaboxes'), 10);
-        add_action('admin_head', array($this, 'register_custom_nav_menu_boxes'), 10);
-        // exclude EE critical pages from all nav menus and wp_list_pages
-        add_filter('nav_menu_meta_box_object', array($this, 'remove_pages_from_nav_menu'), 10);
-    }
-
-
-    /**
-     * Gets the loader (and if it wasn't previously set, sets it)
-     * @return LoaderInterface
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function getLoader()
-    {
-        if (! $this->loader instanceof LoaderInterface) {
-            $this->loader = LoaderFactory::getLoader();
-        }
-        return $this->loader;
-    }
-
-
-    /**
-     * Method that's fired on admin requests (including admin ajax) but only when the models are usable
-     * (ie, the site isn't in maintenance mode)
-     * @since $VID:$
-     * @return void
-     */
-    protected function initModelsReady()
-    {
-        // ok so we want to enable the entire admin
-        $this->persistent_admin_notice_manager = $this->getLoader()->getShared(
-            'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
-        );
-        $this->persistent_admin_notice_manager->setReturnUrl(
-            EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'page'   => EE_Registry::instance()->REQ->get('page', ''),
-                    'action' => EE_Registry::instance()->REQ->get('action', ''),
-                ),
-                EE_ADMIN_URL
-            )
-        );
-        $this->maybeSetDatetimeWarningNotice();
-        // at a glance dashboard widget
-        add_filter('dashboard_glance_items', array($this, 'dashboard_glance_items'), 10);
-        // filter for get_edit_post_link used on comments for custom post types
-        add_filter('get_edit_post_link', array($this, 'modify_edit_post_link'), 10, 2);
-    }
-
-
-    /**
-     *    get_persistent_admin_notices
-     *
-     * @access    public
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function maybeSetDatetimeWarningNotice()
-    {
-        // add dismissable notice for datetime changes.  Only valid if site does not have a timezone_string set.
-        // @todo This needs to stay in core for a bit to catch anyone upgrading from a version without this to a version
-        // with this.  But after enough time (indeterminate at this point) we can just remove this notice.
-        // this was added with https://events.codebasehq.com/projects/event-espresso/tickets/10626
-        if (apply_filters('FHEE__EE_Admin__maybeSetDatetimeWarningNotice', true)
-            && ! get_option('timezone_string')
-            && EEM_Event::instance()->count() > 0
-        ) {
-            new PersistentAdminNotice(
-                'datetime_fix_notice',
-                sprintf(
-                    esc_html__(
-                        '%1$sImportant announcement related to your install of Event Espresso%2$s: There are some changes made to your site that could affect how dates display for your events and other related items with dates and times.  Read more about it %3$shere%4$s. If your dates and times are displaying incorrectly (incorrect offset), you can fix it using the tool on %5$sthis page%4$s.',
-                        'event_espresso'
-                    ),
-                    '<strong>',
-                    '</strong>',
-                    '<a href="https://eventespresso.com/2017/08/important-upcoming-changes-dates-times">',
-                    '</a>',
-                    '<a href="' . EE_Admin_Page::add_query_args_and_nonce(
-                        array(
-                            'page'   => 'espresso_maintenance_settings',
-                            'action' => 'datetime_tools',
-                        ),
-                        admin_url('admin.php')
-                    ) . '">'
-                ),
-                false,
-                'manage_options',
-                'datetime_fix_persistent_notice'
-            );
-        }
-    }
-
-
-    /**
-     * this simply hooks into the nav menu setup of pages metabox and makes sure that we remove EE critical pages from
-     * the list of options. the wp function "wp_nav_menu_item_post_type_meta_box" found in
-     * wp-admin/includes/nav-menu.php looks for the "_default_query" property on the post_type object and it uses that
-     * to override any queries found in the existing query for the given post type.  Note that _default_query is not a
-     * normal property on the post_type object.  It's found ONLY in this particular context.
-     *
-     * @param WP_Post $post_type WP post type object
-     * @return WP_Post
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function remove_pages_from_nav_menu($post_type)
-    {
-        // if this isn't the "pages" post type let's get out
-        if ($post_type->name !== 'page') {
-            return $post_type;
-        }
-        $critical_pages = EE_Registry::instance()->CFG->core->get_critical_pages_array();
-        $post_type->_default_query = array(
-            'post__not_in' => $critical_pages,
-        );
-        return $post_type;
-    }
-
-
-    /**
-     * WP by default only shows three metaboxes in "nav-menus.php" for first times users.  We want to make sure our
-     * metaboxes get shown as well
-     *
-     * @return void
-     */
-    public function enable_hidden_ee_nav_menu_metaboxes()
-    {
-        global $wp_meta_boxes, $pagenow;
-        if (! is_array($wp_meta_boxes) || $pagenow !== 'nav-menus.php') {
-            return;
-        }
-        $user = wp_get_current_user();
-        // has this been done yet?
-        if (get_user_option('ee_nav_menu_initialized', $user->ID)) {
-            return;
-        }
-
-        $hidden_meta_boxes = get_user_option('metaboxhidden_nav-menus', $user->ID);
-        $initial_meta_boxes = apply_filters(
-            'FHEE__EE_Admin__enable_hidden_ee_nav_menu_boxes__initial_meta_boxes',
-            array(
-                'nav-menu-theme-locations',
-                'add-page',
-                'add-custom-links',
-                'add-category',
-                'add-espresso_events',
-                'add-espresso_venues',
-                'add-espresso_event_categories',
-                'add-espresso_venue_categories',
-                'add-post-type-post',
-                'add-post-type-page',
-            )
-        );
-
-        if (is_array($hidden_meta_boxes)) {
-            foreach ($hidden_meta_boxes as $key => $meta_box_id) {
-                if (in_array($meta_box_id, $initial_meta_boxes, true)) {
-                    unset($hidden_meta_boxes[ $key ]);
-                }
-            }
-        }
-        update_user_option($user->ID, 'metaboxhidden_nav-menus', $hidden_meta_boxes, true);
-        update_user_option($user->ID, 'ee_nav_menu_initialized', 1, true);
-    }
-
-
-    /**
-     * This method simply registers custom nav menu boxes for "nav_menus.php route"
-     * Currently EE is using this to make sure there are menu options for our CPT archive page routes.
-     *
-     * @todo   modify this so its more dynamic and automatic for all ee CPTs and setups and can also be hooked into by
-     *         addons etc.
-     * @return void
-     */
-    public function register_custom_nav_menu_boxes()
-    {
-        add_meta_box(
-            'add-extra-nav-menu-pages',
-            esc_html__('Event Espresso Pages', 'event_espresso'),
-            array($this, 'ee_cpt_archive_pages'),
-            'nav-menus',
-            'side',
-            'core'
-        );
-    }
-
-
-    /**
-     * Use this to edit the post link for our cpts so that the edit link points to the correct page.
-     *
-     * @since   4.3.0
-     * @param string $link the original link generated by wp
-     * @param int    $id   post id
-     * @return string  the (maybe) modified link
-     */
-    public function modify_edit_post_link($link, $id)
-    {
-        if (! $post = get_post($id)) {
-            return $link;
-        }
-        if ($post->post_type === 'espresso_attendees') {
-            $query_args = array(
-                'action' => 'edit_attendee',
-                'post'   => $id,
-            );
-            return EEH_URL::add_query_args_and_nonce(
-                $query_args,
-                admin_url('admin.php?page=espresso_registrations')
-            );
-        }
-        return $link;
-    }
-
-
-    public function ee_cpt_archive_pages()
-    {
-        global $nav_menu_selected_id;
-        $db_fields = false;
-        $walker = new Walker_Nav_Menu_Checklist($db_fields);
-        $current_tab = 'event-archives';
-        $removed_args = array(
-            'action',
-            'customlink-tab',
-            'edit-menu-item',
-            'menu-item',
-            'page-tab',
-            '_wpnonce',
-        );
-        ?>
+	/**
+	 * @var EE_Admin $_instance
+	 */
+	private static $_instance;
+
+	/**
+	 * @var PersistentAdminNoticeManager $persistent_admin_notice_manager
+	 */
+	private $persistent_admin_notice_manager;
+
+	/**
+	 * @var LoaderInterface
+	 */
+	protected $loader;
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @return EE_Admin
+	 * @throws EE_Error
+	 */
+	public static function instance()
+	{
+		// check if class object is instantiated
+		if (! self::$_instance instanceof EE_Admin) {
+			self::$_instance = new self();
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * @return EE_Admin
+	 * @throws EE_Error
+	 */
+	public static function reset()
+	{
+		self::$_instance = null;
+		return self::instance();
+	}
+
+
+	/**
+	 * class constructor
+	 *
+	 * @throws EE_Error
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	protected function __construct()
+	{
+		// define global EE_Admin constants
+		$this->_define_all_constants();
+		// set autoloaders for our admin page classes based on included path information
+		EEH_Autoloader::instance()->register_autoloaders_for_each_file_in_folder(EE_ADMIN);
+		// admin hooks
+		add_filter('plugin_action_links', array($this, 'filter_plugin_actions'), 10, 2);
+		// load EE_Request_Handler early
+		add_action('AHEE__EE_System__core_loaded_and_ready', array($this, 'get_request'));
+		add_action('AHEE__EE_System__initialize_last', array($this, 'init'));
+		add_action('AHEE__EE_Admin_Page__route_admin_request', array($this, 'route_admin_request'), 100, 2);
+		add_action('wp_loaded', array($this, 'wp_loaded'), 100);
+		add_action('admin_init', array($this, 'admin_init'), 100);
+		add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'), 20);
+		add_action('admin_notices', array($this, 'display_admin_notices'), 10);
+		add_action('network_admin_notices', array($this, 'display_admin_notices'), 10);
+		add_filter('pre_update_option', array($this, 'check_for_invalid_datetime_formats'), 100, 2);
+		add_filter('admin_footer_text', array($this, 'espresso_admin_footer'));
+		add_action('load-plugins.php', array($this, 'hookIntoWpPluginsPage'));
+		// reset Environment config (we only do this on admin page loads);
+		EE_Registry::instance()->CFG->environment->recheck_values();
+		do_action('AHEE__EE_Admin__loaded');
+	}
+
+
+	/**
+	 * _define_all_constants
+	 * define constants that are set globally for all admin pages
+	 *
+	 * @return void
+	 */
+	private function _define_all_constants()
+	{
+		if (! defined('EE_ADMIN_URL')) {
+			define('EE_ADMIN_URL', EE_PLUGIN_DIR_URL . 'core/admin/');
+			define('EE_ADMIN_PAGES_URL', EE_PLUGIN_DIR_URL . 'admin_pages/');
+			define('EE_ADMIN_TEMPLATE', EE_ADMIN . 'templates' . DS);
+			define('WP_ADMIN_PATH', ABSPATH . 'wp-admin/');
+			define('WP_AJAX_URL', admin_url('admin-ajax.php'));
+		}
+	}
+
+
+	/**
+	 * filter_plugin_actions - adds links to the Plugins page listing
+	 *
+	 * @param    array  $links
+	 * @param    string $plugin
+	 * @return    array
+	 */
+	public function filter_plugin_actions($links, $plugin)
+	{
+		// set $main_file in stone
+		static $main_file;
+		// if $main_file is not set yet
+		if (! $main_file) {
+			$main_file = plugin_basename(EVENT_ESPRESSO_MAIN_FILE);
+		}
+		if ($plugin === $main_file) {
+			// compare current plugin to this one
+			if (EE_Maintenance_Mode::instance()->level() === EE_Maintenance_Mode::level_2_complete_maintenance) {
+				$maintenance_link = '<a href="admin.php?page=espresso_maintenance_settings"'
+									. ' title="Event Espresso is in maintenance mode.  Click this link to learn why.">'
+									. esc_html__('Maintenance Mode Active', 'event_espresso')
+									. '</a>';
+				array_unshift($links, $maintenance_link);
+			} else {
+				$org_settings_link = '<a href="admin.php?page=espresso_general_settings">'
+									 . esc_html__('Settings', 'event_espresso')
+									 . '</a>';
+				$events_link = '<a href="admin.php?page=espresso_events">'
+							   . esc_html__('Events', 'event_espresso')
+							   . '</a>';
+				// add before other links
+				array_unshift($links, $org_settings_link, $events_link);
+			}
+		}
+		return $links;
+	}
+
+
+	/**
+	 * _get_request
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function get_request()
+	{
+		EE_Registry::instance()->load_core('Request_Handler');
+		EE_Registry::instance()->load_core('CPT_Strategy');
+	}
+
+
+	/**
+	 * hide_admin_pages_except_maintenance_mode
+	 *
+	 * @param array $admin_page_folder_names
+	 * @return array
+	 */
+	public function hide_admin_pages_except_maintenance_mode($admin_page_folder_names = array())
+	{
+		return array(
+			'maintenance' => EE_ADMIN_PAGES . 'maintenance' . DS,
+			'about'       => EE_ADMIN_PAGES . 'about' . DS,
+			'support'     => EE_ADMIN_PAGES . 'support' . DS,
+		);
+	}
+
+
+	/**
+	 * init- should fire after shortcode, module,  addon, other plugin (default priority), and even
+	 * EE_Front_Controller's init phases have run
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @throws ServiceNotFoundException
+	 */
+	public function init()
+	{
+		// only enable most of the EE_Admin IF we're not in full maintenance mode
+		if (EE_Maintenance_Mode::instance()->models_can_query()) {
+			$this->initModelsReady();
+		}
+		// run the admin page factory but ONLY if we are doing an ee admin ajax request
+		if (! defined('DOING_AJAX') || EE_ADMIN_AJAX) {
+			try {
+				// this loads the controller for the admin pages which will setup routing etc
+				EE_Registry::instance()->load_core('Admin_Page_Loader');
+			} catch (EE_Error $e) {
+				$e->get_error();
+			}
+		}
+		add_filter('content_save_pre', array($this, 'its_eSpresso'), 10, 1);
+		// make sure our CPTs and custom taxonomy metaboxes get shown for first time users
+		add_action('admin_head', array($this, 'enable_hidden_ee_nav_menu_metaboxes'), 10);
+		add_action('admin_head', array($this, 'register_custom_nav_menu_boxes'), 10);
+		// exclude EE critical pages from all nav menus and wp_list_pages
+		add_filter('nav_menu_meta_box_object', array($this, 'remove_pages_from_nav_menu'), 10);
+	}
+
+
+	/**
+	 * Gets the loader (and if it wasn't previously set, sets it)
+	 * @return LoaderInterface
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function getLoader()
+	{
+		if (! $this->loader instanceof LoaderInterface) {
+			$this->loader = LoaderFactory::getLoader();
+		}
+		return $this->loader;
+	}
+
+
+	/**
+	 * Method that's fired on admin requests (including admin ajax) but only when the models are usable
+	 * (ie, the site isn't in maintenance mode)
+	 * @since $VID:$
+	 * @return void
+	 */
+	protected function initModelsReady()
+	{
+		// ok so we want to enable the entire admin
+		$this->persistent_admin_notice_manager = $this->getLoader()->getShared(
+			'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
+		);
+		$this->persistent_admin_notice_manager->setReturnUrl(
+			EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'page'   => EE_Registry::instance()->REQ->get('page', ''),
+					'action' => EE_Registry::instance()->REQ->get('action', ''),
+				),
+				EE_ADMIN_URL
+			)
+		);
+		$this->maybeSetDatetimeWarningNotice();
+		// at a glance dashboard widget
+		add_filter('dashboard_glance_items', array($this, 'dashboard_glance_items'), 10);
+		// filter for get_edit_post_link used on comments for custom post types
+		add_filter('get_edit_post_link', array($this, 'modify_edit_post_link'), 10, 2);
+	}
+
+
+	/**
+	 *    get_persistent_admin_notices
+	 *
+	 * @access    public
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function maybeSetDatetimeWarningNotice()
+	{
+		// add dismissable notice for datetime changes.  Only valid if site does not have a timezone_string set.
+		// @todo This needs to stay in core for a bit to catch anyone upgrading from a version without this to a version
+		// with this.  But after enough time (indeterminate at this point) we can just remove this notice.
+		// this was added with https://events.codebasehq.com/projects/event-espresso/tickets/10626
+		if (apply_filters('FHEE__EE_Admin__maybeSetDatetimeWarningNotice', true)
+			&& ! get_option('timezone_string')
+			&& EEM_Event::instance()->count() > 0
+		) {
+			new PersistentAdminNotice(
+				'datetime_fix_notice',
+				sprintf(
+					esc_html__(
+						'%1$sImportant announcement related to your install of Event Espresso%2$s: There are some changes made to your site that could affect how dates display for your events and other related items with dates and times.  Read more about it %3$shere%4$s. If your dates and times are displaying incorrectly (incorrect offset), you can fix it using the tool on %5$sthis page%4$s.',
+						'event_espresso'
+					),
+					'<strong>',
+					'</strong>',
+					'<a href="https://eventespresso.com/2017/08/important-upcoming-changes-dates-times">',
+					'</a>',
+					'<a href="' . EE_Admin_Page::add_query_args_and_nonce(
+						array(
+							'page'   => 'espresso_maintenance_settings',
+							'action' => 'datetime_tools',
+						),
+						admin_url('admin.php')
+					) . '">'
+				),
+				false,
+				'manage_options',
+				'datetime_fix_persistent_notice'
+			);
+		}
+	}
+
+
+	/**
+	 * this simply hooks into the nav menu setup of pages metabox and makes sure that we remove EE critical pages from
+	 * the list of options. the wp function "wp_nav_menu_item_post_type_meta_box" found in
+	 * wp-admin/includes/nav-menu.php looks for the "_default_query" property on the post_type object and it uses that
+	 * to override any queries found in the existing query for the given post type.  Note that _default_query is not a
+	 * normal property on the post_type object.  It's found ONLY in this particular context.
+	 *
+	 * @param WP_Post $post_type WP post type object
+	 * @return WP_Post
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function remove_pages_from_nav_menu($post_type)
+	{
+		// if this isn't the "pages" post type let's get out
+		if ($post_type->name !== 'page') {
+			return $post_type;
+		}
+		$critical_pages = EE_Registry::instance()->CFG->core->get_critical_pages_array();
+		$post_type->_default_query = array(
+			'post__not_in' => $critical_pages,
+		);
+		return $post_type;
+	}
+
+
+	/**
+	 * WP by default only shows three metaboxes in "nav-menus.php" for first times users.  We want to make sure our
+	 * metaboxes get shown as well
+	 *
+	 * @return void
+	 */
+	public function enable_hidden_ee_nav_menu_metaboxes()
+	{
+		global $wp_meta_boxes, $pagenow;
+		if (! is_array($wp_meta_boxes) || $pagenow !== 'nav-menus.php') {
+			return;
+		}
+		$user = wp_get_current_user();
+		// has this been done yet?
+		if (get_user_option('ee_nav_menu_initialized', $user->ID)) {
+			return;
+		}
+
+		$hidden_meta_boxes = get_user_option('metaboxhidden_nav-menus', $user->ID);
+		$initial_meta_boxes = apply_filters(
+			'FHEE__EE_Admin__enable_hidden_ee_nav_menu_boxes__initial_meta_boxes',
+			array(
+				'nav-menu-theme-locations',
+				'add-page',
+				'add-custom-links',
+				'add-category',
+				'add-espresso_events',
+				'add-espresso_venues',
+				'add-espresso_event_categories',
+				'add-espresso_venue_categories',
+				'add-post-type-post',
+				'add-post-type-page',
+			)
+		);
+
+		if (is_array($hidden_meta_boxes)) {
+			foreach ($hidden_meta_boxes as $key => $meta_box_id) {
+				if (in_array($meta_box_id, $initial_meta_boxes, true)) {
+					unset($hidden_meta_boxes[ $key ]);
+				}
+			}
+		}
+		update_user_option($user->ID, 'metaboxhidden_nav-menus', $hidden_meta_boxes, true);
+		update_user_option($user->ID, 'ee_nav_menu_initialized', 1, true);
+	}
+
+
+	/**
+	 * This method simply registers custom nav menu boxes for "nav_menus.php route"
+	 * Currently EE is using this to make sure there are menu options for our CPT archive page routes.
+	 *
+	 * @todo   modify this so its more dynamic and automatic for all ee CPTs and setups and can also be hooked into by
+	 *         addons etc.
+	 * @return void
+	 */
+	public function register_custom_nav_menu_boxes()
+	{
+		add_meta_box(
+			'add-extra-nav-menu-pages',
+			esc_html__('Event Espresso Pages', 'event_espresso'),
+			array($this, 'ee_cpt_archive_pages'),
+			'nav-menus',
+			'side',
+			'core'
+		);
+	}
+
+
+	/**
+	 * Use this to edit the post link for our cpts so that the edit link points to the correct page.
+	 *
+	 * @since   4.3.0
+	 * @param string $link the original link generated by wp
+	 * @param int    $id   post id
+	 * @return string  the (maybe) modified link
+	 */
+	public function modify_edit_post_link($link, $id)
+	{
+		if (! $post = get_post($id)) {
+			return $link;
+		}
+		if ($post->post_type === 'espresso_attendees') {
+			$query_args = array(
+				'action' => 'edit_attendee',
+				'post'   => $id,
+			);
+			return EEH_URL::add_query_args_and_nonce(
+				$query_args,
+				admin_url('admin.php?page=espresso_registrations')
+			);
+		}
+		return $link;
+	}
+
+
+	public function ee_cpt_archive_pages()
+	{
+		global $nav_menu_selected_id;
+		$db_fields = false;
+		$walker = new Walker_Nav_Menu_Checklist($db_fields);
+		$current_tab = 'event-archives';
+		$removed_args = array(
+			'action',
+			'customlink-tab',
+			'edit-menu-item',
+			'menu-item',
+			'page-tab',
+			'_wpnonce',
+		);
+		?>
         <div id="posttype-extra-nav-menu-pages" class="posttypediv">
             <ul id="posttype-extra-nav-menu-pages-tabs" class="posttype-tabs add-menu-item-tabs">
                 <li <?php echo('event-archives' === $current_tab ? ' class="tabs"' : ''); ?>>
                     <a class="nav-tab-link" data-type="tabs-panel-posttype-extra-nav-menu-pages-event-archives"
                        href="<?php
-                        if ($nav_menu_selected_id) {
-                            echo esc_url(
-                                add_query_arg(
-                                    'extra-nav-menu-pages-tab',
-                                    'event-archives',
-                                    remove_query_arg($removed_args)
-                                )
-                            );
-                        }
-                        ?>#tabs-panel-posttype-extra-nav-menu-pages-event-archives">
+						if ($nav_menu_selected_id) {
+							echo esc_url(
+								add_query_arg(
+									'extra-nav-menu-pages-tab',
+									'event-archives',
+									remove_query_arg($removed_args)
+								)
+							);
+						}
+						?>#tabs-panel-posttype-extra-nav-menu-pages-event-archives">
                         <?php _e('Event Archive Pages', 'event_espresso'); ?>
                     </a>
                 </li>
             </ul><!-- .posttype-tabs -->
 
             <div id="tabs-panel-posttype-extra-nav-menu-pages-event-archives" class="tabs-panel <?php
-            echo('event-archives' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive');
-            ?>">
+			echo('event-archives' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive');
+			?>">
                 <ul id="extra-nav-menu-pageschecklist-event-archives" class="categorychecklist form-no-clear">
                     <?php
-                    $pages = $this->_get_extra_nav_menu_pages_items();
-                    $args['walker'] = $walker;
-                    echo walk_nav_menu_tree(
-                        array_map(
-                            array($this, '_setup_extra_nav_menu_pages_items'),
-                            $pages
-                        ),
-                        0,
-                        (object) $args
-                    );
-                    ?>
+					$pages = $this->_get_extra_nav_menu_pages_items();
+					$args['walker'] = $walker;
+					echo walk_nav_menu_tree(
+						array_map(
+							array($this, '_setup_extra_nav_menu_pages_items'),
+							$pages
+						),
+						0,
+						(object) $args
+					);
+					?>
                 </ul>
             </div><!-- /.tabs-panel -->
 
             <p class="button-controls">
                 <span class="list-controls">
                     <a href="<?php
-                             echo esc_url(
-                                 add_query_arg(
-                                     array(
-                                         'extra-nav-menu-pages-tab' => 'event-archives',
-                                         'selectall'                => 1,
-                                     ),
-                                     remove_query_arg($removed_args)
-                                 )
-                             );
-                        ?>#posttype-extra-nav-menu-pages>" class="select-all"><?php _e('Select All', 'event_espresso'); ?></a>
+							 echo esc_url(
+								 add_query_arg(
+									 array(
+										 'extra-nav-menu-pages-tab' => 'event-archives',
+										 'selectall'                => 1,
+									 ),
+									 remove_query_arg($removed_args)
+								 )
+							 );
+						?>#posttype-extra-nav-menu-pages>" class="select-all"><?php _e('Select All', 'event_espresso'); ?></a>
                 </span>
                 <span class="add-to-menu">
                     <input type="submit"<?php wp_nav_menu_disabled_check($nav_menu_selected_id); ?>
@@ -513,500 +513,500 @@ 
 
         </div><!-- /.posttypediv -->
         <?php
-    }
-
-
-    /**
-     * Returns an array of event archive nav items.
-     *
-     * @todo  for now this method is just in place so when it gets abstracted further we can substitute in whatever
-     *        method we use for getting the extra nav menu items
-     * @return array
-     */
-    private function _get_extra_nav_menu_pages_items()
-    {
-        $menuitems[] = array(
-            'title'       => esc_html__('Event List', 'event_espresso'),
-            'url'         => get_post_type_archive_link('espresso_events'),
-            'description' => esc_html__('Archive page for all events.', 'event_espresso'),
-        );
-        return apply_filters('FHEE__EE_Admin__get_extra_nav_menu_pages_items', $menuitems);
-    }
-
-
-    /**
-     * Setup nav menu walker item for usage in the event archive nav menu metabox.  It receives a menu_item array with
-     * the properties and converts it to the menu item object.
-     *
-     * @see wp_setup_nav_menu_item() in wp-includes/nav-menu.php
-     * @param $menu_item_values
-     * @return stdClass
-     */
-    private function _setup_extra_nav_menu_pages_items($menu_item_values)
-    {
-        $menu_item = new stdClass();
-        $keys = array(
-            'ID'               => 0,
-            'db_id'            => 0,
-            'menu_item_parent' => 0,
-            'object_id'        => -1,
-            'post_parent'      => 0,
-            'type'             => 'custom',
-            'object'           => '',
-            'type_label'       => esc_html__('Extra Nav Menu Item', 'event_espresso'),
-            'title'            => '',
-            'url'              => '',
-            'target'           => '',
-            'attr_title'       => '',
-            'description'      => '',
-            'classes'          => array(),
-            'xfn'              => '',
-        );
-
-        foreach ($keys as $key => $value) {
-            $menu_item->{$key} = isset($menu_item_values[ $key ]) ? $menu_item_values[ $key ] : $value;
-        }
-        return $menu_item;
-    }
-
-
-    /**
-     * This is the action hook for the AHEE__EE_Admin_Page__route_admin_request hook that fires off right before an
-     * EE_Admin_Page route is called.
-     *
-     * @return void
-     */
-    public function route_admin_request()
-    {
-    }
-
-
-    /**
-     * wp_loaded should fire on the WordPress wp_loaded hook.  This fires on a VERY late priority.
-     *
-     * @return void
-     */
-    public function wp_loaded()
-    {
-    }
-
-
-    /**
-     * admin_init
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function admin_init()
-    {
-        /**
-         * our cpt models must be instantiated on WordPress post processing routes (wp-admin/post.php),
-         * so any hooking into core WP routes is taken care of.  So in this next few lines of code:
-         * - check if doing post processing.
-         * - check if doing post processing of one of EE CPTs
-         * - instantiate the corresponding EE CPT model for the post_type being processed.
-         */
-        if (isset($_POST['action'], $_POST['post_type']) && $_POST['action'] === 'editpost') {
-            /** @var EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions $custom_post_types */
-            $custom_post_types = $this->getLoader()->getShared(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'
-            );
-            $custom_post_types->getCustomPostTypeModels($_POST['post_type']);
-        }
-
-
-        /**
-         * This code excludes EE critical pages anywhere `wp_dropdown_pages` is used to create a dropdown for selecting
-         * critical pages.  The only place critical pages need included in a generated dropdown is on the "Critical
-         * Pages" tab in the EE General Settings Admin page.
-         * This is for user-proofing.
-         */
-        add_filter('wp_dropdown_pages', array($this, 'modify_dropdown_pages'));
-        if (EE_Maintenance_Mode::instance()->models_can_query()) {
-            $this->adminInitModelsReady();
-        }
-    }
-
-
-    /**
-     * Runs on admin_init but only if models are usable (ie, we're not in maintenanc emode)
-     */
-    protected function adminInitModelsReady()
-    {
-        if (function_exists('wp_add_privacy_policy_content')) {
-            $this->getLoader()->getShared('EventEspresso\core\services\privacy\policy\PrivacyPolicyManager');
-        }
-    }
-
-
-    /**
-     * Callback for wp_dropdown_pages hook to remove ee critical pages from the dropdown selection.
-     *
-     * @param string $output Current output.
-     * @return string
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function modify_dropdown_pages($output)
-    {
-        // get critical pages
-        $critical_pages = EE_Registry::instance()->CFG->core->get_critical_pages_array();
-
-        // split current output by line break for easier parsing.
-        $split_output = explode("\n", $output);
-
-        // loop through to remove any critical pages from the array.
-        foreach ($critical_pages as $page_id) {
-            $needle = 'value="' . $page_id . '"';
-            foreach ($split_output as $key => $haystack) {
-                if (strpos($haystack, $needle) !== false) {
-                    unset($split_output[ $key ]);
-                }
-            }
-        }
-        // replace output with the new contents
-        return implode("\n", $split_output);
-    }
-
-
-    /**
-     * enqueue all admin scripts that need loaded for admin pages
-     *
-     * @return void
-     */
-    public function enqueue_admin_scripts()
-    {
-        // this javascript is loaded on every admin page to catch any injections ee needs to add to wp run js.
-        // Note: the intention of this script is to only do TARGETED injections.  I.E, only injecting on certain script
-        // calls.
-        wp_enqueue_script(
-            'ee-inject-wp',
-            EE_ADMIN_URL . 'assets/ee-cpt-wp-injects.js',
-            array('jquery'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        // register cookie script for future dependencies
-        wp_register_script(
-            'jquery-cookie',
-            EE_THIRD_PARTY_URL . 'joyride/jquery.cookie.js',
-            array('jquery'),
-            '2.1',
-            true
-        );
-        // joyride is turned OFF by default, but prior to the admin_enqueue_scripts hook, can be turned back on again
-        // via: add_filter('FHEE_load_joyride', '__return_true' );
-        if (apply_filters('FHEE_load_joyride', false)) {
-            // joyride style
-            wp_register_style('joyride-css', EE_THIRD_PARTY_URL . 'joyride/joyride-2.1.css', array(), '2.1');
-            wp_register_style(
-                'ee-joyride-css',
-                EE_GLOBAL_ASSETS_URL . 'css/ee-joyride-styles.css',
-                array('joyride-css'),
-                EVENT_ESPRESSO_VERSION
-            );
-            wp_register_script(
-                'joyride-modernizr',
-                EE_THIRD_PARTY_URL . 'joyride/modernizr.mq.js',
-                array(),
-                '2.1',
-                true
-            );
-            // joyride JS
-            wp_register_script(
-                'jquery-joyride',
-                EE_THIRD_PARTY_URL . 'joyride/jquery.joyride-2.1.js',
-                array('jquery-cookie', 'joyride-modernizr'),
-                '2.1',
-                true
-            );
-            // wanna go for a joyride?
-            wp_enqueue_style('ee-joyride-css');
-            wp_enqueue_script('jquery-joyride');
-        }
-    }
-
-
-    /**
-     * display_admin_notices
-     *
-     * @return void
-     */
-    public function display_admin_notices()
-    {
-        echo EE_Error::get_notices();
-    }
-
-
-    /**
-     * @param array $elements
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function dashboard_glance_items($elements)
-    {
-        $elements = is_array($elements) ? $elements : array($elements);
-        $events = EEM_Event::instance()->count();
-        $items['events']['url'] = EE_Admin_Page::add_query_args_and_nonce(
-            array('page' => 'espresso_events'),
-            admin_url('admin.php')
-        );
-        $items['events']['text'] = sprintf(_n('%s Event', '%s Events', $events, 'event_espresso'), number_format_i18n($events));
-        $items['events']['title'] = esc_html__('Click to view all Events', 'event_espresso');
-        $registrations = EEM_Registration::instance()->count(
-            array(
-                array(
-                    'STS_ID' => array('!=', EEM_Registration::status_id_incomplete),
-                ),
-            )
-        );
-        $items['registrations']['url'] = EE_Admin_Page::add_query_args_and_nonce(
-            array('page' => 'espresso_registrations'),
-            admin_url('admin.php')
-        );
-        $items['registrations']['text'] = sprintf(
-            _n('%s Registration', '%s Registrations', $registrations, 'event_espresso'),
-            number_format_i18n($registrations)
-        );
-        $items['registrations']['title'] = esc_html__('Click to view all registrations', 'event_espresso');
-
-        $items = (array) apply_filters('FHEE__EE_Admin__dashboard_glance_items__items', $items);
-
-        foreach ($items as $type => $item_properties) {
-            $elements[] = sprintf(
-                '<a class="ee-dashboard-link-' . $type . '" href="%s" title="%s">%s</a>',
-                $item_properties['url'],
-                $item_properties['title'],
-                $item_properties['text']
-            );
-        }
-        return $elements;
-    }
-
-
-    /**
-     * check_for_invalid_datetime_formats
-     * if an admin changes their date or time format settings on the WP General Settings admin page, verify that
-     * their selected format can be parsed by PHP
-     *
-     * @param    $value
-     * @param    $option
-     * @throws EE_Error
-     * @return    string
-     */
-    public function check_for_invalid_datetime_formats($value, $option)
-    {
-        // check for date_format or time_format
-        switch ($option) {
-            case 'date_format':
-                $date_time_format = $value . ' ' . get_option('time_format');
-                break;
-            case 'time_format':
-                $date_time_format = get_option('date_format') . ' ' . $value;
-                break;
-            default:
-                $date_time_format = false;
-        }
-        // do we have a date_time format to check ?
-        if ($date_time_format) {
-            $error_msg = EEH_DTT_Helper::validate_format_string($date_time_format);
-
-            if (is_array($error_msg)) {
-                $msg = '<p>'
-                       . sprintf(
-                           esc_html__(
-                               'The following date time "%s" ( %s ) is difficult to be properly parsed by PHP for the following reasons:',
-                               'event_espresso'
-                           ),
-                           date($date_time_format),
-                           $date_time_format
-                       )
-                       . '</p><p><ul>';
-
-
-                foreach ($error_msg as $error) {
-                    $msg .= '<li>' . $error . '</li>';
-                }
-
-                $msg .= '</ul></p><p>'
-                        . sprintf(
-                            esc_html__(
-                                '%sPlease note that your date and time formats have been reset to "F j, Y" and "g:i a" respectively.%s',
-                                'event_espresso'
-                            ),
-                            '<span style="color:#D54E21;">',
-                            '</span>'
-                        )
-                        . '</p>';
-
-                // trigger WP settings error
-                add_settings_error(
-                    'date_format',
-                    'date_format',
-                    $msg
-                );
-
-                // set format to something valid
-                switch ($option) {
-                    case 'date_format':
-                        $value = 'F j, Y';
-                        break;
-                    case 'time_format':
-                        $value = 'g:i a';
-                        break;
-                }
-            }
-        }
-        return $value;
-    }
-
-
-    /**
-     * its_eSpresso - converts the less commonly used spelling of "Expresso" to "Espresso"
-     *
-     * @param $content
-     * @return    string
-     */
-    public function its_eSpresso($content)
-    {
-        return str_replace('[EXPRESSO_', '[ESPRESSO_', $content);
-    }
-
-
-    /**
-     * espresso_admin_footer
-     *
-     * @return    string
-     */
-    public function espresso_admin_footer()
-    {
-        return \EEH_Template::powered_by_event_espresso('aln-cntr', '', array('utm_content' => 'admin_footer'));
-    }
-
-
-    /**
-     * static method for registering ee admin page.
-     * This method is deprecated in favor of the new location in EE_Register_Admin_Page::register.
-     *
-     * @since      4.3.0
-     * @deprecated 4.3.0    Use EE_Register_Admin_Page::register() instead
-     * @see        EE_Register_Admin_Page::register()
-     * @param       $page_basename
-     * @param       $page_path
-     * @param array $config
-     * @return void
-     * @throws EE_Error
-     */
-    public static function register_ee_admin_page($page_basename, $page_path, $config = array())
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            sprintf(
-                esc_html__(
-                    'Usage is deprecated.  Use EE_Register_Admin_Page::register() for registering the %s admin page.',
-                    'event_espresso'
-                ),
-                $page_basename
-            ),
-            '4.3'
-        );
-        if (class_exists('EE_Register_Admin_Page')) {
-            $config['page_path'] = $page_path;
-        }
-        EE_Register_Admin_Page::register($page_basename, $config);
-    }
-
-
-    /**
-     * @deprecated 4.8.41
-     * @param  int      $post_ID
-     * @param  \WP_Post $post
-     * @return void
-     */
-    public static function parse_post_content_on_save($post_ID, $post)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__('Usage is deprecated', 'event_espresso'),
-            '4.8.41'
-        );
-    }
-
-
-    /**
-     * @deprecated 4.8.41
-     * @param  $option
-     * @param  $old_value
-     * @param  $value
-     * @return void
-     */
-    public function reset_page_for_posts_on_change($option, $old_value, $value)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__('Usage is deprecated', 'event_espresso'),
-            '4.8.41'
-        );
-    }
-
-
-    /**
-     * @deprecated 4.9.27
-     * @return void
-     */
-    public function get_persistent_admin_notices()
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            sprintf(
-                __('Usage is deprecated. Use "%1$s" instead.', 'event_espresso'),
-                '\EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
-            ),
-            '4.9.27'
-        );
-    }
-
-
-    /**
-     * @deprecated 4.9.27
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws DomainException
-     */
-    public function dismiss_ee_nag_notice_callback()
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            sprintf(
-                __('Usage is deprecated. Use "%1$s" instead.', 'event_espresso'),
-                '\EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
-            ),
-            '4.9.27'
-        );
-        $this->persistent_admin_notice_manager->dismissNotice();
-    }
-
-
-    /**
-     * Callback on load-plugins.php hook for setting up anything hooking into the wp plugins page.
-     *
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function hookIntoWpPluginsPage()
-    {
-        $this->getLoader()->getShared('EventEspresso\core\domain\services\admin\ExitModal');
-        $this->getLoader()
-                     ->getShared('EventEspresso\core\domain\services\admin\PluginUpsells')
-                     ->decafUpsells();
-    }
+	}
+
+
+	/**
+	 * Returns an array of event archive nav items.
+	 *
+	 * @todo  for now this method is just in place so when it gets abstracted further we can substitute in whatever
+	 *        method we use for getting the extra nav menu items
+	 * @return array
+	 */
+	private function _get_extra_nav_menu_pages_items()
+	{
+		$menuitems[] = array(
+			'title'       => esc_html__('Event List', 'event_espresso'),
+			'url'         => get_post_type_archive_link('espresso_events'),
+			'description' => esc_html__('Archive page for all events.', 'event_espresso'),
+		);
+		return apply_filters('FHEE__EE_Admin__get_extra_nav_menu_pages_items', $menuitems);
+	}
+
+
+	/**
+	 * Setup nav menu walker item for usage in the event archive nav menu metabox.  It receives a menu_item array with
+	 * the properties and converts it to the menu item object.
+	 *
+	 * @see wp_setup_nav_menu_item() in wp-includes/nav-menu.php
+	 * @param $menu_item_values
+	 * @return stdClass
+	 */
+	private function _setup_extra_nav_menu_pages_items($menu_item_values)
+	{
+		$menu_item = new stdClass();
+		$keys = array(
+			'ID'               => 0,
+			'db_id'            => 0,
+			'menu_item_parent' => 0,
+			'object_id'        => -1,
+			'post_parent'      => 0,
+			'type'             => 'custom',
+			'object'           => '',
+			'type_label'       => esc_html__('Extra Nav Menu Item', 'event_espresso'),
+			'title'            => '',
+			'url'              => '',
+			'target'           => '',
+			'attr_title'       => '',
+			'description'      => '',
+			'classes'          => array(),
+			'xfn'              => '',
+		);
+
+		foreach ($keys as $key => $value) {
+			$menu_item->{$key} = isset($menu_item_values[ $key ]) ? $menu_item_values[ $key ] : $value;
+		}
+		return $menu_item;
+	}
+
+
+	/**
+	 * This is the action hook for the AHEE__EE_Admin_Page__route_admin_request hook that fires off right before an
+	 * EE_Admin_Page route is called.
+	 *
+	 * @return void
+	 */
+	public function route_admin_request()
+	{
+	}
+
+
+	/**
+	 * wp_loaded should fire on the WordPress wp_loaded hook.  This fires on a VERY late priority.
+	 *
+	 * @return void
+	 */
+	public function wp_loaded()
+	{
+	}
+
+
+	/**
+	 * admin_init
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function admin_init()
+	{
+		/**
+		 * our cpt models must be instantiated on WordPress post processing routes (wp-admin/post.php),
+		 * so any hooking into core WP routes is taken care of.  So in this next few lines of code:
+		 * - check if doing post processing.
+		 * - check if doing post processing of one of EE CPTs
+		 * - instantiate the corresponding EE CPT model for the post_type being processed.
+		 */
+		if (isset($_POST['action'], $_POST['post_type']) && $_POST['action'] === 'editpost') {
+			/** @var EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions $custom_post_types */
+			$custom_post_types = $this->getLoader()->getShared(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'
+			);
+			$custom_post_types->getCustomPostTypeModels($_POST['post_type']);
+		}
+
+
+		/**
+		 * This code excludes EE critical pages anywhere `wp_dropdown_pages` is used to create a dropdown for selecting
+		 * critical pages.  The only place critical pages need included in a generated dropdown is on the "Critical
+		 * Pages" tab in the EE General Settings Admin page.
+		 * This is for user-proofing.
+		 */
+		add_filter('wp_dropdown_pages', array($this, 'modify_dropdown_pages'));
+		if (EE_Maintenance_Mode::instance()->models_can_query()) {
+			$this->adminInitModelsReady();
+		}
+	}
+
+
+	/**
+	 * Runs on admin_init but only if models are usable (ie, we're not in maintenanc emode)
+	 */
+	protected function adminInitModelsReady()
+	{
+		if (function_exists('wp_add_privacy_policy_content')) {
+			$this->getLoader()->getShared('EventEspresso\core\services\privacy\policy\PrivacyPolicyManager');
+		}
+	}
+
+
+	/**
+	 * Callback for wp_dropdown_pages hook to remove ee critical pages from the dropdown selection.
+	 *
+	 * @param string $output Current output.
+	 * @return string
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function modify_dropdown_pages($output)
+	{
+		// get critical pages
+		$critical_pages = EE_Registry::instance()->CFG->core->get_critical_pages_array();
+
+		// split current output by line break for easier parsing.
+		$split_output = explode("\n", $output);
+
+		// loop through to remove any critical pages from the array.
+		foreach ($critical_pages as $page_id) {
+			$needle = 'value="' . $page_id . '"';
+			foreach ($split_output as $key => $haystack) {
+				if (strpos($haystack, $needle) !== false) {
+					unset($split_output[ $key ]);
+				}
+			}
+		}
+		// replace output with the new contents
+		return implode("\n", $split_output);
+	}
+
+
+	/**
+	 * enqueue all admin scripts that need loaded for admin pages
+	 *
+	 * @return void
+	 */
+	public function enqueue_admin_scripts()
+	{
+		// this javascript is loaded on every admin page to catch any injections ee needs to add to wp run js.
+		// Note: the intention of this script is to only do TARGETED injections.  I.E, only injecting on certain script
+		// calls.
+		wp_enqueue_script(
+			'ee-inject-wp',
+			EE_ADMIN_URL . 'assets/ee-cpt-wp-injects.js',
+			array('jquery'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		// register cookie script for future dependencies
+		wp_register_script(
+			'jquery-cookie',
+			EE_THIRD_PARTY_URL . 'joyride/jquery.cookie.js',
+			array('jquery'),
+			'2.1',
+			true
+		);
+		// joyride is turned OFF by default, but prior to the admin_enqueue_scripts hook, can be turned back on again
+		// via: add_filter('FHEE_load_joyride', '__return_true' );
+		if (apply_filters('FHEE_load_joyride', false)) {
+			// joyride style
+			wp_register_style('joyride-css', EE_THIRD_PARTY_URL . 'joyride/joyride-2.1.css', array(), '2.1');
+			wp_register_style(
+				'ee-joyride-css',
+				EE_GLOBAL_ASSETS_URL . 'css/ee-joyride-styles.css',
+				array('joyride-css'),
+				EVENT_ESPRESSO_VERSION
+			);
+			wp_register_script(
+				'joyride-modernizr',
+				EE_THIRD_PARTY_URL . 'joyride/modernizr.mq.js',
+				array(),
+				'2.1',
+				true
+			);
+			// joyride JS
+			wp_register_script(
+				'jquery-joyride',
+				EE_THIRD_PARTY_URL . 'joyride/jquery.joyride-2.1.js',
+				array('jquery-cookie', 'joyride-modernizr'),
+				'2.1',
+				true
+			);
+			// wanna go for a joyride?
+			wp_enqueue_style('ee-joyride-css');
+			wp_enqueue_script('jquery-joyride');
+		}
+	}
+
+
+	/**
+	 * display_admin_notices
+	 *
+	 * @return void
+	 */
+	public function display_admin_notices()
+	{
+		echo EE_Error::get_notices();
+	}
+
+
+	/**
+	 * @param array $elements
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function dashboard_glance_items($elements)
+	{
+		$elements = is_array($elements) ? $elements : array($elements);
+		$events = EEM_Event::instance()->count();
+		$items['events']['url'] = EE_Admin_Page::add_query_args_and_nonce(
+			array('page' => 'espresso_events'),
+			admin_url('admin.php')
+		);
+		$items['events']['text'] = sprintf(_n('%s Event', '%s Events', $events, 'event_espresso'), number_format_i18n($events));
+		$items['events']['title'] = esc_html__('Click to view all Events', 'event_espresso');
+		$registrations = EEM_Registration::instance()->count(
+			array(
+				array(
+					'STS_ID' => array('!=', EEM_Registration::status_id_incomplete),
+				),
+			)
+		);
+		$items['registrations']['url'] = EE_Admin_Page::add_query_args_and_nonce(
+			array('page' => 'espresso_registrations'),
+			admin_url('admin.php')
+		);
+		$items['registrations']['text'] = sprintf(
+			_n('%s Registration', '%s Registrations', $registrations, 'event_espresso'),
+			number_format_i18n($registrations)
+		);
+		$items['registrations']['title'] = esc_html__('Click to view all registrations', 'event_espresso');
+
+		$items = (array) apply_filters('FHEE__EE_Admin__dashboard_glance_items__items', $items);
+
+		foreach ($items as $type => $item_properties) {
+			$elements[] = sprintf(
+				'<a class="ee-dashboard-link-' . $type . '" href="%s" title="%s">%s</a>',
+				$item_properties['url'],
+				$item_properties['title'],
+				$item_properties['text']
+			);
+		}
+		return $elements;
+	}
+
+
+	/**
+	 * check_for_invalid_datetime_formats
+	 * if an admin changes their date or time format settings on the WP General Settings admin page, verify that
+	 * their selected format can be parsed by PHP
+	 *
+	 * @param    $value
+	 * @param    $option
+	 * @throws EE_Error
+	 * @return    string
+	 */
+	public function check_for_invalid_datetime_formats($value, $option)
+	{
+		// check for date_format or time_format
+		switch ($option) {
+			case 'date_format':
+				$date_time_format = $value . ' ' . get_option('time_format');
+				break;
+			case 'time_format':
+				$date_time_format = get_option('date_format') . ' ' . $value;
+				break;
+			default:
+				$date_time_format = false;
+		}
+		// do we have a date_time format to check ?
+		if ($date_time_format) {
+			$error_msg = EEH_DTT_Helper::validate_format_string($date_time_format);
+
+			if (is_array($error_msg)) {
+				$msg = '<p>'
+					   . sprintf(
+						   esc_html__(
+							   'The following date time "%s" ( %s ) is difficult to be properly parsed by PHP for the following reasons:',
+							   'event_espresso'
+						   ),
+						   date($date_time_format),
+						   $date_time_format
+					   )
+					   . '</p><p><ul>';
+
+
+				foreach ($error_msg as $error) {
+					$msg .= '<li>' . $error . '</li>';
+				}
+
+				$msg .= '</ul></p><p>'
+						. sprintf(
+							esc_html__(
+								'%sPlease note that your date and time formats have been reset to "F j, Y" and "g:i a" respectively.%s',
+								'event_espresso'
+							),
+							'<span style="color:#D54E21;">',
+							'</span>'
+						)
+						. '</p>';
+
+				// trigger WP settings error
+				add_settings_error(
+					'date_format',
+					'date_format',
+					$msg
+				);
+
+				// set format to something valid
+				switch ($option) {
+					case 'date_format':
+						$value = 'F j, Y';
+						break;
+					case 'time_format':
+						$value = 'g:i a';
+						break;
+				}
+			}
+		}
+		return $value;
+	}
+
+
+	/**
+	 * its_eSpresso - converts the less commonly used spelling of "Expresso" to "Espresso"
+	 *
+	 * @param $content
+	 * @return    string
+	 */
+	public function its_eSpresso($content)
+	{
+		return str_replace('[EXPRESSO_', '[ESPRESSO_', $content);
+	}
+
+
+	/**
+	 * espresso_admin_footer
+	 *
+	 * @return    string
+	 */
+	public function espresso_admin_footer()
+	{
+		return \EEH_Template::powered_by_event_espresso('aln-cntr', '', array('utm_content' => 'admin_footer'));
+	}
+
+
+	/**
+	 * static method for registering ee admin page.
+	 * This method is deprecated in favor of the new location in EE_Register_Admin_Page::register.
+	 *
+	 * @since      4.3.0
+	 * @deprecated 4.3.0    Use EE_Register_Admin_Page::register() instead
+	 * @see        EE_Register_Admin_Page::register()
+	 * @param       $page_basename
+	 * @param       $page_path
+	 * @param array $config
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public static function register_ee_admin_page($page_basename, $page_path, $config = array())
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			sprintf(
+				esc_html__(
+					'Usage is deprecated.  Use EE_Register_Admin_Page::register() for registering the %s admin page.',
+					'event_espresso'
+				),
+				$page_basename
+			),
+			'4.3'
+		);
+		if (class_exists('EE_Register_Admin_Page')) {
+			$config['page_path'] = $page_path;
+		}
+		EE_Register_Admin_Page::register($page_basename, $config);
+	}
+
+
+	/**
+	 * @deprecated 4.8.41
+	 * @param  int      $post_ID
+	 * @param  \WP_Post $post
+	 * @return void
+	 */
+	public static function parse_post_content_on_save($post_ID, $post)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__('Usage is deprecated', 'event_espresso'),
+			'4.8.41'
+		);
+	}
+
+
+	/**
+	 * @deprecated 4.8.41
+	 * @param  $option
+	 * @param  $old_value
+	 * @param  $value
+	 * @return void
+	 */
+	public function reset_page_for_posts_on_change($option, $old_value, $value)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__('Usage is deprecated', 'event_espresso'),
+			'4.8.41'
+		);
+	}
+
+
+	/**
+	 * @deprecated 4.9.27
+	 * @return void
+	 */
+	public function get_persistent_admin_notices()
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			sprintf(
+				__('Usage is deprecated. Use "%1$s" instead.', 'event_espresso'),
+				'\EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
+			),
+			'4.9.27'
+		);
+	}
+
+
+	/**
+	 * @deprecated 4.9.27
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws DomainException
+	 */
+	public function dismiss_ee_nag_notice_callback()
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			sprintf(
+				__('Usage is deprecated. Use "%1$s" instead.', 'event_espresso'),
+				'\EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
+			),
+			'4.9.27'
+		);
+		$this->persistent_admin_notice_manager->dismissNotice();
+	}
+
+
+	/**
+	 * Callback on load-plugins.php hook for setting up anything hooking into the wp plugins page.
+	 *
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function hookIntoWpPluginsPage()
+	{
+		$this->getLoader()->getShared('EventEspresso\core\domain\services\admin\ExitModal');
+		$this->getLoader()
+					 ->getShared('EventEspresso\core\domain\services\admin\PluginUpsells')
+					 ->decafUpsells();
+	}
 }

Spacing +30 added lines, -30 removed lines

@@ -43,7 +43,7 @@ 
     public static function instance()
     {
         // check if class object is instantiated
-        if (! self::$_instance instanceof EE_Admin) {
+        if ( ! self::$_instance instanceof EE_Admin) {
             self::$_instance = new self();
         }
         return self::$_instance;
@@ -103,11 +103,11 @@ 
      */
     private function _define_all_constants()
     {
-        if (! defined('EE_ADMIN_URL')) {
-            define('EE_ADMIN_URL', EE_PLUGIN_DIR_URL . 'core/admin/');
-            define('EE_ADMIN_PAGES_URL', EE_PLUGIN_DIR_URL . 'admin_pages/');
-            define('EE_ADMIN_TEMPLATE', EE_ADMIN . 'templates' . DS);
-            define('WP_ADMIN_PATH', ABSPATH . 'wp-admin/');
+        if ( ! defined('EE_ADMIN_URL')) {
+            define('EE_ADMIN_URL', EE_PLUGIN_DIR_URL.'core/admin/');
+            define('EE_ADMIN_PAGES_URL', EE_PLUGIN_DIR_URL.'admin_pages/');
+            define('EE_ADMIN_TEMPLATE', EE_ADMIN.'templates'.DS);
+            define('WP_ADMIN_PATH', ABSPATH.'wp-admin/');
             define('WP_AJAX_URL', admin_url('admin-ajax.php'));
         }
     }
@@ -125,7 +125,7 @@ 
         // set $main_file in stone
         static $main_file;
         // if $main_file is not set yet
-        if (! $main_file) {
+        if ( ! $main_file) {
             $main_file = plugin_basename(EVENT_ESPRESSO_MAIN_FILE);
         }
         if ($plugin === $main_file) {
@@ -177,9 +177,9 @@ 
     public function hide_admin_pages_except_maintenance_mode($admin_page_folder_names = array())
     {
         return array(
-            'maintenance' => EE_ADMIN_PAGES . 'maintenance' . DS,
-            'about'       => EE_ADMIN_PAGES . 'about' . DS,
-            'support'     => EE_ADMIN_PAGES . 'support' . DS,
+            'maintenance' => EE_ADMIN_PAGES.'maintenance'.DS,
+            'about'       => EE_ADMIN_PAGES.'about'.DS,
+            'support'     => EE_ADMIN_PAGES.'support'.DS,
         );
     }
 
@@ -203,7 +203,7 @@ 
             $this->initModelsReady();
         }
         // run the admin page factory but ONLY if we are doing an ee admin ajax request
-        if (! defined('DOING_AJAX') || EE_ADMIN_AJAX) {
+        if ( ! defined('DOING_AJAX') || EE_ADMIN_AJAX) {
             try {
                 // this loads the controller for the admin pages which will setup routing etc
                 EE_Registry::instance()->load_core('Admin_Page_Loader');
@@ -229,7 +229,7 @@ 
      */
     protected function getLoader()
     {
-        if (! $this->loader instanceof LoaderInterface) {
+        if ( ! $this->loader instanceof LoaderInterface) {
             $this->loader = LoaderFactory::getLoader();
         }
         return $this->loader;
@@ -296,13 +296,13 @@ 
                     '</strong>',
                     '<a href="https://eventespresso.com/2017/08/important-upcoming-changes-dates-times">',
                     '</a>',
-                    '<a href="' . EE_Admin_Page::add_query_args_and_nonce(
+                    '<a href="'.EE_Admin_Page::add_query_args_and_nonce(
                         array(
                             'page'   => 'espresso_maintenance_settings',
                             'action' => 'datetime_tools',
                         ),
                         admin_url('admin.php')
-                    ) . '">'
+                    ).'">'
                 ),
                 false,
                 'manage_options',
@@ -348,7 +348,7 @@ 
     public function enable_hidden_ee_nav_menu_metaboxes()
     {
         global $wp_meta_boxes, $pagenow;
-        if (! is_array($wp_meta_boxes) || $pagenow !== 'nav-menus.php') {
+        if ( ! is_array($wp_meta_boxes) || $pagenow !== 'nav-menus.php') {
             return;
         }
         $user = wp_get_current_user();
@@ -377,7 +377,7 @@ 
         if (is_array($hidden_meta_boxes)) {
             foreach ($hidden_meta_boxes as $key => $meta_box_id) {
                 if (in_array($meta_box_id, $initial_meta_boxes, true)) {
-                    unset($hidden_meta_boxes[ $key ]);
+                    unset($hidden_meta_boxes[$key]);
                 }
             }
         }
@@ -417,7 +417,7 @@ 
      */
     public function modify_edit_post_link($link, $id)
     {
-        if (! $post = get_post($id)) {
+        if ( ! $post = get_post($id)) {
             return $link;
         }
         if ($post->post_type === 'espresso_attendees') {
@@ -564,7 +564,7 @@ 
         );
 
         foreach ($keys as $key => $value) {
-            $menu_item->{$key} = isset($menu_item_values[ $key ]) ? $menu_item_values[ $key ] : $value;
+            $menu_item->{$key} = isset($menu_item_values[$key]) ? $menu_item_values[$key] : $value;
         }
         return $menu_item;
     }
@@ -662,10 +662,10 @@ 
 
         // loop through to remove any critical pages from the array.
         foreach ($critical_pages as $page_id) {
-            $needle = 'value="' . $page_id . '"';
+            $needle = 'value="'.$page_id.'"';
             foreach ($split_output as $key => $haystack) {
                 if (strpos($haystack, $needle) !== false) {
-                    unset($split_output[ $key ]);
+                    unset($split_output[$key]);
                 }
             }
         }
@@ -686,7 +686,7 @@ 
         // calls.
         wp_enqueue_script(
             'ee-inject-wp',
-            EE_ADMIN_URL . 'assets/ee-cpt-wp-injects.js',
+            EE_ADMIN_URL.'assets/ee-cpt-wp-injects.js',
             array('jquery'),
             EVENT_ESPRESSO_VERSION,
             true
@@ -694,7 +694,7 @@ 
         // register cookie script for future dependencies
         wp_register_script(
             'jquery-cookie',
-            EE_THIRD_PARTY_URL . 'joyride/jquery.cookie.js',
+            EE_THIRD_PARTY_URL.'joyride/jquery.cookie.js',
             array('jquery'),
             '2.1',
             true
@@ -703,16 +703,16 @@ 
         // via: add_filter('FHEE_load_joyride', '__return_true' );
         if (apply_filters('FHEE_load_joyride', false)) {
             // joyride style
-            wp_register_style('joyride-css', EE_THIRD_PARTY_URL . 'joyride/joyride-2.1.css', array(), '2.1');
+            wp_register_style('joyride-css', EE_THIRD_PARTY_URL.'joyride/joyride-2.1.css', array(), '2.1');
             wp_register_style(
                 'ee-joyride-css',
-                EE_GLOBAL_ASSETS_URL . 'css/ee-joyride-styles.css',
+                EE_GLOBAL_ASSETS_URL.'css/ee-joyride-styles.css',
                 array('joyride-css'),
                 EVENT_ESPRESSO_VERSION
             );
             wp_register_script(
                 'joyride-modernizr',
-                EE_THIRD_PARTY_URL . 'joyride/modernizr.mq.js',
+                EE_THIRD_PARTY_URL.'joyride/modernizr.mq.js',
                 array(),
                 '2.1',
                 true
@@ -720,7 +720,7 @@ 
             // joyride JS
             wp_register_script(
                 'jquery-joyride',
-                EE_THIRD_PARTY_URL . 'joyride/jquery.joyride-2.1.js',
+                EE_THIRD_PARTY_URL.'joyride/jquery.joyride-2.1.js',
                 array('jquery-cookie', 'joyride-modernizr'),
                 '2.1',
                 true
@@ -782,7 +782,7 @@ 
 
         foreach ($items as $type => $item_properties) {
             $elements[] = sprintf(
-                '<a class="ee-dashboard-link-' . $type . '" href="%s" title="%s">%s</a>',
+                '<a class="ee-dashboard-link-'.$type.'" href="%s" title="%s">%s</a>',
                 $item_properties['url'],
                 $item_properties['title'],
                 $item_properties['text']
@@ -807,10 +807,10 @@ 
         // check for date_format or time_format
         switch ($option) {
             case 'date_format':
-                $date_time_format = $value . ' ' . get_option('time_format');
+                $date_time_format = $value.' '.get_option('time_format');
                 break;
             case 'time_format':
-                $date_time_format = get_option('date_format') . ' ' . $value;
+                $date_time_format = get_option('date_format').' '.$value;
                 break;
             default:
                 $date_time_format = false;
@@ -833,7 +833,7 @@ 
 
 
                 foreach ($error_msg as $error) {
-                    $msg .= '<li>' . $error . '</li>';
+                    $msg .= '<li>'.$error.'</li>';
                 }
 
                 $msg .= '</ul></p><p>'

core/EE_Session.core.php

Indentation +1239 added lines, -1239 removed lines

@@ -23,1237 +23,1237 @@ 
 class EE_Session implements SessionIdentifierInterface
 {
 
-    const session_id_prefix = 'ee_ssn_';
-
-    const hash_check_prefix = 'ee_shc_';
-
-    const OPTION_NAME_SETTINGS = 'ee_session_settings';
-
-    const STATUS_CLOSED = 0;
-
-    const STATUS_OPEN = 1;
-
-    /**
-     * instance of the EE_Session object
-     *
-     * @var EE_Session
-     */
-    private static $_instance;
-
-    /**
-     * @var CacheStorageInterface $cache_storage
-     */
-    protected $cache_storage;
-
-    /**
-     * EE_Encryption object
-     *
-     * @var EE_Encryption
-     */
-    protected $encryption;
-
-    /**
-     * the session id
-     *
-     * @var string
-     */
-    private $_sid;
-
-    /**
-     * session id salt
-     *
-     * @var string
-     */
-    private $_sid_salt;
-
-    /**
-     * session data
-     *
-     * @var array
-     */
-    private $_session_data = array();
-
-    /**
-     * how long an EE session lasts
-     * default session lifespan of 1 hour (for not so instant IPNs)
-     *
-     * @var SessionLifespan $session_lifespan
-     */
-    private $session_lifespan;
-
-    /**
-     * session expiration time as Unix timestamp in GMT
-     *
-     * @var int
-     */
-    private $_expiration;
-
-    /**
-     * whether or not session has expired at some point
-     *
-     * @var boolean
-     */
-    private $_expired = false;
-
-    /**
-     * current time as Unix timestamp in GMT
-     *
-     * @var int
-     */
-    private $_time;
-
-    /**
-     * whether to encrypt session data
-     *
-     * @var bool
-     */
-    private $_use_encryption;
-
-    /**
-     * well... according to the server...
-     *
-     * @var null
-     */
-    private $_user_agent;
-
-    /**
-     * do you really trust the server ?
-     *
-     * @var null
-     */
-    private $_ip_address;
-
-    /**
-     * current WP user_id
-     *
-     * @var null
-     */
-    private $_wp_user_id;
-
-    /**
-     * array for defining default session vars
-     *
-     * @var array
-     */
-    private $_default_session_vars = array(
-        'id'            => null,
-        'user_id'       => null,
-        'ip_address'    => null,
-        'user_agent'    => null,
-        'init_access'   => null,
-        'last_access'   => null,
-        'expiration'    => null,
-        'pages_visited' => array(),
-    );
-
-    /**
-     * timestamp for when last garbage collection cycle was performed
-     *
-     * @var int $_last_gc
-     */
-    private $_last_gc;
-
-    /**
-     * @var RequestInterface $request
-     */
-    protected $request;
-
-    /**
-     * whether session is active or not
-     *
-     * @var int $status
-     */
-    private $status = EE_Session::STATUS_CLOSED;
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param CacheStorageInterface $cache_storage
-     * @param SessionLifespan|null  $lifespan
-     * @param RequestInterface      $request
-     * @param EE_Encryption         $encryption
-     * @return EE_Session
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function instance(
-        CacheStorageInterface $cache_storage = null,
-        SessionLifespan $lifespan = null,
-        RequestInterface $request = null,
-        EE_Encryption $encryption = null
-    ) {
-        // check if class object is instantiated
-        // session loading is turned ON by default, but prior to the init hook, can be turned back OFF via:
-        // add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
-            self::$_instance = new self(
-                $cache_storage,
-                $lifespan,
-                $request,
-                $encryption
-            );
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * protected constructor to prevent direct creation
-     *
-     * @param CacheStorageInterface $cache_storage
-     * @param SessionLifespan       $lifespan
-     * @param RequestInterface      $request
-     * @param EE_Encryption         $encryption
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function __construct(
-        CacheStorageInterface $cache_storage,
-        SessionLifespan $lifespan,
-        RequestInterface $request,
-        EE_Encryption $encryption = null
-    ) {
-        // session loading is turned ON by default,
-        // but prior to the 'AHEE__EE_System__core_loaded_and_ready' hook
-        // (which currently fires on the init hook at priority 9),
-        // can be turned back OFF via: add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! apply_filters('FHEE_load_EE_Session', true)) {
-            return;
-        }
-        $this->session_lifespan = $lifespan;
-        $this->request = $request;
-        if (! defined('ESPRESSO_SESSION')) {
-            define('ESPRESSO_SESSION', true);
-        }
-        // retrieve session options from db
-        $session_settings = (array) get_option(EE_Session::OPTION_NAME_SETTINGS, array());
-        if (! empty($session_settings)) {
-            // cycle though existing session options
-            foreach ($session_settings as $var_name => $session_setting) {
-                // set values for class properties
-                $var_name = '_' . $var_name;
-                $this->{$var_name} = $session_setting;
-            }
-        }
-        $this->cache_storage = $cache_storage;
-        // are we using encryption?
-        $this->_use_encryption = $encryption instanceof EE_Encryption
-                                 && EE_Registry::instance()->CFG->admin->encode_session_data();
-        // encrypt data via: $this->encryption->encrypt();
-        $this->encryption = $encryption;
-        // filter hook allows outside functions/classes/plugins to change default empty cart
-        $extra_default_session_vars = apply_filters('FHEE__EE_Session__construct__extra_default_session_vars', array());
-        array_merge($this->_default_session_vars, $extra_default_session_vars);
-        // apply default session vars
-        $this->_set_defaults();
-        add_action('AHEE__EE_System__initialize', array($this, 'open_session'));
-        // check request for 'clear_session' param
-        add_action('AHEE__EE_Request_Handler__construct__complete', array($this, 'wp_loaded'));
-        // once everything is all said and done,
-        add_action('shutdown', array($this, 'update'), 100);
-        add_action('shutdown', array($this, 'garbageCollection'), 1000);
-        $this->configure_garbage_collection_filters();
-    }
-
-
-    /**
-     * @return bool
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function isLoadedAndActive()
-    {
-        return did_action('AHEE__EE_System__core_loaded_and_ready')
-               && EE_Session::instance() instanceof EE_Session
-               && EE_Session::instance()->isActive();
-    }
-
-
-    /**
-     * @return bool
-     */
-    public function isActive()
-    {
-        return $this->status === EE_Session::STATUS_OPEN;
-    }
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidSessionDataException
-     */
-    public function open_session()
-    {
-        // check for existing session and retrieve it from db
-        if (! $this->_espresso_session()) {
-            // or just start a new one
-            $this->_create_espresso_session();
-        }
-    }
-
-
-    /**
-     * @return bool
-     */
-    public function expired()
-    {
-        return $this->_expired;
-    }
-
-
-    /**
-     * @return void
-     */
-    public function reset_expired()
-    {
-        $this->_expired = false;
-    }
-
-
-    /**
-     * @return int
-     */
-    public function expiration()
-    {
-        return $this->_expiration;
-    }
-
-
-    /**
-     * @return int
-     */
-    public function extension()
-    {
-        return apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS);
-    }
-
-
-    /**
-     * @param int $time number of seconds to add to session expiration
-     */
-    public function extend_expiration($time = 0)
-    {
-        $time = $time ? $time : $this->extension();
-        $this->_expiration += absint($time);
-    }
-
-
-    /**
-     * @return int
-     */
-    public function lifespan()
-    {
-        return $this->session_lifespan->inSeconds();
-    }
-
-
-    /**
-     * This just sets some defaults for the _session data property
-     *
-     * @access private
-     * @return void
-     */
-    private function _set_defaults()
-    {
-        // set some defaults
-        foreach ($this->_default_session_vars as $key => $default_var) {
-            if (is_array($default_var)) {
-                $this->_session_data[ $key ] = array();
-            } else {
-                $this->_session_data[ $key ] = '';
-            }
-        }
-    }
-
-
-    /**
-     * @retrieve  session data
-     * @access    public
-     * @return    string
-     */
-    public function id()
-    {
-        return $this->_sid;
-    }
-
-
-    /**
-     * @param \EE_Cart $cart
-     * @return bool
-     */
-    public function set_cart(EE_Cart $cart)
-    {
-        $this->_session_data['cart'] = $cart;
-        return true;
-    }
-
-
-    /**
-     * reset_cart
-     */
-    public function reset_cart()
-    {
-        do_action('AHEE__EE_Session__reset_cart__before_reset', $this);
-        $this->_session_data['cart'] = null;
-    }
-
-
-    /**
-     * @return \EE_Cart
-     */
-    public function cart()
-    {
-        return isset($this->_session_data['cart']) && $this->_session_data['cart'] instanceof EE_Cart
-            ? $this->_session_data['cart']
-            : null;
-    }
-
-
-    /**
-     * @param \EE_Checkout $checkout
-     * @return bool
-     */
-    public function set_checkout(EE_Checkout $checkout)
-    {
-        $this->_session_data['checkout'] = $checkout;
-        return true;
-    }
-
-
-    /**
-     * reset_checkout
-     */
-    public function reset_checkout()
-    {
-        do_action('AHEE__EE_Session__reset_checkout__before_reset', $this);
-        $this->_session_data['checkout'] = null;
-    }
-
-
-    /**
-     * @return \EE_Checkout
-     */
-    public function checkout()
-    {
-        return isset($this->_session_data['checkout']) && $this->_session_data['checkout'] instanceof EE_Checkout
-            ? $this->_session_data['checkout']
-            : null;
-    }
-
-
-    /**
-     * @param \EE_Transaction $transaction
-     * @return bool
-     * @throws EE_Error
-     */
-    public function set_transaction(EE_Transaction $transaction)
-    {
-        // first remove the session from the transaction before we save the transaction in the session
-        $transaction->set_txn_session_data(null);
-        $this->_session_data['transaction'] = $transaction;
-        return true;
-    }
-
-
-    /**
-     * reset_transaction
-     */
-    public function reset_transaction()
-    {
-        do_action('AHEE__EE_Session__reset_transaction__before_reset', $this);
-        $this->_session_data['transaction'] = null;
-    }
-
-
-    /**
-     * @return \EE_Transaction
-     */
-    public function transaction()
-    {
-        return isset($this->_session_data['transaction'])
-               && $this->_session_data['transaction'] instanceof EE_Transaction
-            ? $this->_session_data['transaction']
-            : null;
-    }
-
-
-    /**
-     * retrieve session data
-     *
-     * @param null $key
-     * @param bool $reset_cache
-     * @return array
-     */
-    public function get_session_data($key = null, $reset_cache = false)
-    {
-        if ($reset_cache) {
-            $this->reset_cart();
-            $this->reset_checkout();
-            $this->reset_transaction();
-        }
-        if (! empty($key)) {
-            return isset($this->_session_data[ $key ]) ? $this->_session_data[ $key ] : null;
-        }
-        return $this->_session_data;
-    }
-
-
-    /**
-     * Returns TRUE on success, FALSE on fail
-     *
-     * @param array $data
-     * @return bool
-     */
-    public function set_session_data($data)
-    {
-        // nothing ??? bad data ??? go home!
-        if (empty($data) || ! is_array($data)) {
-            EE_Error::add_error(
-                esc_html__(
-                    'No session data or invalid session data was provided.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        foreach ($data as $key => $value) {
-            if (isset($this->_default_session_vars[ $key ])) {
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            'Sorry! %s is a default session datum and can not be reset.',
-                            'event_espresso'
-                        ),
-                        $key
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-            $this->_session_data[ $key ] = $value;
-        }
-        return true;
-    }
-
-
-    /**
-     * @initiate session
-     * @access   private
-     * @return TRUE on success, FALSE on fail
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidSessionDataException
-     */
-    private function _espresso_session()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        // check that session has started
-        if (session_id() === '') {
-            // starts a new session if one doesn't already exist, or re-initiates an existing one
-            session_start();
-        }
-        $this->status = EE_Session::STATUS_OPEN;
-        // get our modified session ID
-        $this->_sid = $this->_generate_session_id();
-        // and the visitors IP
-        $this->_ip_address = $this->request->ipAddress();
-        // set the "user agent"
-        $this->_user_agent = $this->request->userAgent();
-        // now let's retrieve what's in the db
-        $session_data = $this->_retrieve_session_data();
-        if (! empty($session_data)) {
-            // get the current time in UTC
-            $this->_time = $this->_time !== null ? $this->_time : time();
-            // and reset the session expiration
-            $this->_expiration = isset($session_data['expiration'])
-                ? $session_data['expiration']
-                : $this->_time + $this->session_lifespan->inSeconds();
-        } else {
-            // set initial site access time and the session expiration
-            $this->_set_init_access_and_expiration();
-            // set referer
-            $this->_session_data['pages_visited'][ $this->_session_data['init_access'] ] = isset($_SERVER['HTTP_REFERER'])
-                ? esc_attr($_SERVER['HTTP_REFERER'])
-                : '';
-            // no previous session = go back and create one (on top of the data above)
-            return false;
-        }
-        // now the user agent
-        if ($session_data['user_agent'] !== $this->_user_agent) {
-            return false;
-        }
-        // wait a minute... how old are you?
-        if ($this->_time > $this->_expiration) {
-            // yer too old fer me!
-            $this->_expired = true;
-            // wipe out everything that isn't a default session datum
-            $this->clear_session(__CLASS__, __FUNCTION__);
-        }
-        // make event espresso session data available to plugin
-        $this->_session_data = array_merge($this->_session_data, $session_data);
-        return true;
-    }
-
-
-    /**
-     * _get_session_data
-     * Retrieves the session data, and attempts to correct any encoding issues that can occur due to improperly setup
-     * databases
-     *
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidSessionDataException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _retrieve_session_data()
-    {
-        $ssn_key = EE_Session::session_id_prefix . $this->_sid;
-        try {
-            // we're using WP's Transient API to store session data using the PHP session ID as the option name
-            $session_data = $this->cache_storage->get($ssn_key, false);
-            if (empty($session_data)) {
-                return array();
-            }
-            if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
-                $hash_check = $this->cache_storage->get(
-                    EE_Session::hash_check_prefix . $this->_sid,
-                    false
-                );
-                if ($hash_check && $hash_check !== md5($session_data)) {
-                    EE_Error::add_error(
-                        sprintf(
-                            __(
-                                'The stored data for session %1$s failed to pass a hash check and therefore appears to be invalid.',
-                                'event_espresso'
-                            ),
-                            EE_Session::session_id_prefix . $this->_sid
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            }
-        } catch (Exception $e) {
-            // let's just eat that error for now and attempt to correct any corrupted data
-            global $wpdb;
-            $row = $wpdb->get_row(
-                $wpdb->prepare(
-                    "SELECT option_value FROM {$wpdb->options} WHERE option_name = %s LIMIT 1",
-                    '_transient_' . $ssn_key
-                )
-            );
-            $session_data = is_object($row) ? $row->option_value : null;
-            if ($session_data) {
-                $session_data = preg_replace_callback(
-                    '!s:(d+):"(.*?)";!',
-                    function ($match) {
-                        return $match[1] === strlen($match[2])
-                            ? $match[0]
-                            : 's:' . strlen($match[2]) . ':"' . $match[2] . '";';
-                    },
-                    $session_data
-                );
-            }
-            $session_data = maybe_unserialize($session_data);
-        }
-        // in case the data is encoded... try to decode it
-        $session_data = $this->encryption instanceof EE_Encryption
-            ? $this->encryption->base64_string_decode($session_data)
-            : $session_data;
-        if (! is_array($session_data)) {
-            try {
-                $session_data = maybe_unserialize($session_data);
-            } catch (Exception $e) {
-                $msg = esc_html__(
-                    'An error occurred while attempting to unserialize the session data.',
-                    'event_espresso'
-                );
-                $msg .= WP_DEBUG
-                    ? '<br><pre>'
-                      . print_r($session_data, true)
-                      . '</pre><br>'
-                      . $this->find_serialize_error($session_data)
-                    : '';
-                $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
-                throw new InvalidSessionDataException($msg, 0, $e);
-            }
-        }
-        // just a check to make sure the session array is indeed an array
-        if (! is_array($session_data)) {
-            // no?!?! then something is wrong
-            $msg = esc_html__(
-                'The session data is missing, invalid, or corrupted.',
-                'event_espresso'
-            );
-            $msg .= WP_DEBUG
-                ? '<br><pre>' . print_r($session_data, true) . '</pre><br>' . $this->find_serialize_error($session_data)
-                : '';
-            $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
-            throw new InvalidSessionDataException($msg);
-        }
-        if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {
-            $session_data['transaction'] = EEM_Transaction::instance()->get_one_by_ID(
-                $session_data['transaction']
-            );
-        }
-        return $session_data;
-    }
-
-
-    /**
-     * _generate_session_id
-     * Retrieves the PHP session id either directly from the PHP session,
-     * or from the $_REQUEST array if it was passed in from an AJAX request.
-     * The session id is then salted and hashed (mmm sounds tasty)
-     * so that it can be safely used as a $_REQUEST param
-     *
-     * @return string
-     */
-    protected function _generate_session_id()
-    {
-        // check if the SID was passed explicitly, otherwise get from session, then add salt and hash it to reduce length
-        if (isset($_REQUEST['EESID'])) {
-            $session_id = sanitize_text_field($_REQUEST['EESID']);
-        } else {
-            $session_id = md5(session_id() . get_current_blog_id() . $this->_get_sid_salt());
-        }
-        return apply_filters('FHEE__EE_Session___generate_session_id__session_id', $session_id);
-    }
-
-
-    /**
-     * _get_sid_salt
-     *
-     * @return string
-     */
-    protected function _get_sid_salt()
-    {
-        // was session id salt already saved to db ?
-        if (empty($this->_sid_salt)) {
-            // no?  then maybe use WP defined constant
-            if (defined('AUTH_SALT')) {
-                $this->_sid_salt = AUTH_SALT;
-            }
-            // if salt doesn't exist or is too short
-            if (strlen($this->_sid_salt) < 32) {
-                // create a new one
-                $this->_sid_salt = wp_generate_password(64);
-            }
-            // and save it as a permanent session setting
-            $this->updateSessionSettings(array('sid_salt' => $this->_sid_salt));
-        }
-        return $this->_sid_salt;
-    }
-
-
-    /**
-     * _set_init_access_and_expiration
-     *
-     * @return void
-     */
-    protected function _set_init_access_and_expiration()
-    {
-        $this->_time = time();
-        $this->_expiration = $this->_time + $this->session_lifespan->inSeconds();
-        // set initial site access time
-        $this->_session_data['init_access'] = $this->_time;
-        // and the session expiration
-        $this->_session_data['expiration'] = $this->_expiration;
-    }
-
-
-    /**
-     * @update session data  prior to saving to the db
-     * @access public
-     * @param bool $new_session
-     * @return TRUE on success, FALSE on fail
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function update($new_session = false)
-    {
-        $this->_session_data = $this->_session_data !== null
-                               && is_array($this->_session_data)
-                               && isset($this->_session_data['id'])
-            ? $this->_session_data
-            : array();
-        if (empty($this->_session_data)) {
-            $this->_set_defaults();
-        }
-        $session_data = array();
-        foreach ($this->_session_data as $key => $value) {
-            switch ($key) {
-                case 'id':
-                    // session ID
-                    $session_data['id'] = $this->_sid;
-                    break;
-                case 'ip_address':
-                    // visitor ip address
-                    $session_data['ip_address'] = $this->request->ipAddress();
-                    break;
-                case 'user_agent':
-                    // visitor user_agent
-                    $session_data['user_agent'] = $this->_user_agent;
-                    break;
-                case 'init_access':
-                    $session_data['init_access'] = absint($value);
-                    break;
-                case 'last_access':
-                    // current access time
-                    $session_data['last_access'] = $this->_time;
-                    break;
-                case 'expiration':
-                    // when the session expires
-                    $session_data['expiration'] = ! empty($this->_expiration)
-                        ? $this->_expiration
-                        : $session_data['init_access'] + $this->session_lifespan->inSeconds();
-                    break;
-                case 'user_id':
-                    // current user if logged in
-                    $session_data['user_id'] = $this->_wp_user_id();
-                    break;
-                case 'pages_visited':
-                    $page_visit = $this->_get_page_visit();
-                    if ($page_visit) {
-                        // set pages visited where the first will be the http referrer
-                        $this->_session_data['pages_visited'][ $this->_time ] = $page_visit;
-                        // we'll only save the last 10 page visits.
-                        $session_data['pages_visited'] = array_slice($this->_session_data['pages_visited'], -10);
-                    }
-                    break;
-                default:
-                    // carry any other data over
-                    $session_data[ $key ] = $this->_session_data[ $key ];
-            }
-        }
-        $this->_session_data = $session_data;
-        // creating a new session does not require saving to the db just yet
-        if (! $new_session) {
-            // ready? let's save
-            if ($this->_save_session_to_db()) {
-                return true;
-            }
-            return false;
-        }
-        // meh, why not?
-        return true;
-    }
-
-
-    /**
-     * @create session data array
-     * @access public
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _create_espresso_session()
-    {
-        do_action('AHEE_log', __CLASS__, __FUNCTION__, '');
-        // use the update function for now with $new_session arg set to TRUE
-        return $this->update(true) ? true : false;
-    }
-
-
-    /**
-     * _save_session_to_db
-     *
-     * @param bool $clear_session
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _save_session_to_db($clear_session = false)
-    {
-        // don't save sessions for crawlers
-        // and unless we're deleting the session data, don't save anything if there isn't a cart
-        if ($this->request->isBot()
-            || (
-                ! $clear_session
-                && ! $this->cart() instanceof EE_Cart
-                && apply_filters('FHEE__EE_Session___save_session_to_db__abort_session_save', true)
-            )
-        ) {
-            return false;
-        }
-        $transaction = $this->transaction();
-        if ($transaction instanceof EE_Transaction) {
-            if (! $transaction->ID()) {
-                $transaction->save();
-            }
-            $this->_session_data['transaction'] = $transaction->ID();
-        }
-        // then serialize all of our session data
-        $session_data = serialize($this->_session_data);
-        // do we need to also encode it to avoid corrupted data when saved to the db?
-        $session_data = $this->_use_encryption
-            ? $this->encryption->base64_string_encode($session_data)
-            : $session_data;
-        // maybe save hash check
-        if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
-            $this->cache_storage->add(
-                EE_Session::hash_check_prefix . $this->_sid,
-                md5($session_data),
-                $this->session_lifespan->inSeconds()
-            );
-        }
-        // we're using the Transient API for storing session data,
-        return $this->cache_storage->add(
-            EE_Session::session_id_prefix . $this->_sid,
-            $session_data,
-            $this->session_lifespan->inSeconds()
-        );
-    }
-
-
-    /**
-     * @get    the full page request the visitor is accessing
-     * @access public
-     * @return string
-     */
-    public function _get_page_visit()
-    {
-        $page_visit = home_url('/') . 'wp-admin/admin-ajax.php';
-        // check for request url
-        if (isset($_SERVER['REQUEST_URI'])) {
-            $http_host = '';
-            $page_id = '?';
-            $e_reg = '';
-            $request_uri = esc_url($_SERVER['REQUEST_URI']);
-            $ru_bits = explode('?', $request_uri);
-            $request_uri = $ru_bits[0];
-            // check for and grab host as well
-            if (isset($_SERVER['HTTP_HOST'])) {
-                $http_host = esc_url($_SERVER['HTTP_HOST']);
-            }
-            // check for page_id in SERVER REQUEST
-            if (isset($_REQUEST['page_id'])) {
-                // rebuild $e_reg without any of the extra parameters
-                $page_id = '?page_id=' . esc_attr($_REQUEST['page_id']) . '&amp;';
-            }
-            // check for $e_reg in SERVER REQUEST
-            if (isset($_REQUEST['ee'])) {
-                // rebuild $e_reg without any of the extra parameters
-                $e_reg = 'ee=' . esc_attr($_REQUEST['ee']);
-            }
-            $page_visit = rtrim($http_host . $request_uri . $page_id . $e_reg, '?');
-        }
-        return $page_visit !== home_url('/wp-admin/admin-ajax.php') ? $page_visit : '';
-    }
-
-
-    /**
-     * @the    current wp user id
-     * @access public
-     * @return int
-     */
-    public function _wp_user_id()
-    {
-        // if I need to explain the following lines of code, then you shouldn't be looking at this!
-        $this->_wp_user_id = get_current_user_id();
-        return $this->_wp_user_id;
-    }
-
-
-    /**
-     * Clear EE_Session data
-     *
-     * @access public
-     * @param string $class
-     * @param string $function
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function clear_session($class = '', $function = '')
-    {
+	const session_id_prefix = 'ee_ssn_';
+
+	const hash_check_prefix = 'ee_shc_';
+
+	const OPTION_NAME_SETTINGS = 'ee_session_settings';
+
+	const STATUS_CLOSED = 0;
+
+	const STATUS_OPEN = 1;
+
+	/**
+	 * instance of the EE_Session object
+	 *
+	 * @var EE_Session
+	 */
+	private static $_instance;
+
+	/**
+	 * @var CacheStorageInterface $cache_storage
+	 */
+	protected $cache_storage;
+
+	/**
+	 * EE_Encryption object
+	 *
+	 * @var EE_Encryption
+	 */
+	protected $encryption;
+
+	/**
+	 * the session id
+	 *
+	 * @var string
+	 */
+	private $_sid;
+
+	/**
+	 * session id salt
+	 *
+	 * @var string
+	 */
+	private $_sid_salt;
+
+	/**
+	 * session data
+	 *
+	 * @var array
+	 */
+	private $_session_data = array();
+
+	/**
+	 * how long an EE session lasts
+	 * default session lifespan of 1 hour (for not so instant IPNs)
+	 *
+	 * @var SessionLifespan $session_lifespan
+	 */
+	private $session_lifespan;
+
+	/**
+	 * session expiration time as Unix timestamp in GMT
+	 *
+	 * @var int
+	 */
+	private $_expiration;
+
+	/**
+	 * whether or not session has expired at some point
+	 *
+	 * @var boolean
+	 */
+	private $_expired = false;
+
+	/**
+	 * current time as Unix timestamp in GMT
+	 *
+	 * @var int
+	 */
+	private $_time;
+
+	/**
+	 * whether to encrypt session data
+	 *
+	 * @var bool
+	 */
+	private $_use_encryption;
+
+	/**
+	 * well... according to the server...
+	 *
+	 * @var null
+	 */
+	private $_user_agent;
+
+	/**
+	 * do you really trust the server ?
+	 *
+	 * @var null
+	 */
+	private $_ip_address;
+
+	/**
+	 * current WP user_id
+	 *
+	 * @var null
+	 */
+	private $_wp_user_id;
+
+	/**
+	 * array for defining default session vars
+	 *
+	 * @var array
+	 */
+	private $_default_session_vars = array(
+		'id'            => null,
+		'user_id'       => null,
+		'ip_address'    => null,
+		'user_agent'    => null,
+		'init_access'   => null,
+		'last_access'   => null,
+		'expiration'    => null,
+		'pages_visited' => array(),
+	);
+
+	/**
+	 * timestamp for when last garbage collection cycle was performed
+	 *
+	 * @var int $_last_gc
+	 */
+	private $_last_gc;
+
+	/**
+	 * @var RequestInterface $request
+	 */
+	protected $request;
+
+	/**
+	 * whether session is active or not
+	 *
+	 * @var int $status
+	 */
+	private $status = EE_Session::STATUS_CLOSED;
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param CacheStorageInterface $cache_storage
+	 * @param SessionLifespan|null  $lifespan
+	 * @param RequestInterface      $request
+	 * @param EE_Encryption         $encryption
+	 * @return EE_Session
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function instance(
+		CacheStorageInterface $cache_storage = null,
+		SessionLifespan $lifespan = null,
+		RequestInterface $request = null,
+		EE_Encryption $encryption = null
+	) {
+		// check if class object is instantiated
+		// session loading is turned ON by default, but prior to the init hook, can be turned back OFF via:
+		// add_filter( 'FHEE_load_EE_Session', '__return_false' );
+		if (! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
+			self::$_instance = new self(
+				$cache_storage,
+				$lifespan,
+				$request,
+				$encryption
+			);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * protected constructor to prevent direct creation
+	 *
+	 * @param CacheStorageInterface $cache_storage
+	 * @param SessionLifespan       $lifespan
+	 * @param RequestInterface      $request
+	 * @param EE_Encryption         $encryption
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function __construct(
+		CacheStorageInterface $cache_storage,
+		SessionLifespan $lifespan,
+		RequestInterface $request,
+		EE_Encryption $encryption = null
+	) {
+		// session loading is turned ON by default,
+		// but prior to the 'AHEE__EE_System__core_loaded_and_ready' hook
+		// (which currently fires on the init hook at priority 9),
+		// can be turned back OFF via: add_filter( 'FHEE_load_EE_Session', '__return_false' );
+		if (! apply_filters('FHEE_load_EE_Session', true)) {
+			return;
+		}
+		$this->session_lifespan = $lifespan;
+		$this->request = $request;
+		if (! defined('ESPRESSO_SESSION')) {
+			define('ESPRESSO_SESSION', true);
+		}
+		// retrieve session options from db
+		$session_settings = (array) get_option(EE_Session::OPTION_NAME_SETTINGS, array());
+		if (! empty($session_settings)) {
+			// cycle though existing session options
+			foreach ($session_settings as $var_name => $session_setting) {
+				// set values for class properties
+				$var_name = '_' . $var_name;
+				$this->{$var_name} = $session_setting;
+			}
+		}
+		$this->cache_storage = $cache_storage;
+		// are we using encryption?
+		$this->_use_encryption = $encryption instanceof EE_Encryption
+								 && EE_Registry::instance()->CFG->admin->encode_session_data();
+		// encrypt data via: $this->encryption->encrypt();
+		$this->encryption = $encryption;
+		// filter hook allows outside functions/classes/plugins to change default empty cart
+		$extra_default_session_vars = apply_filters('FHEE__EE_Session__construct__extra_default_session_vars', array());
+		array_merge($this->_default_session_vars, $extra_default_session_vars);
+		// apply default session vars
+		$this->_set_defaults();
+		add_action('AHEE__EE_System__initialize', array($this, 'open_session'));
+		// check request for 'clear_session' param
+		add_action('AHEE__EE_Request_Handler__construct__complete', array($this, 'wp_loaded'));
+		// once everything is all said and done,
+		add_action('shutdown', array($this, 'update'), 100);
+		add_action('shutdown', array($this, 'garbageCollection'), 1000);
+		$this->configure_garbage_collection_filters();
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function isLoadedAndActive()
+	{
+		return did_action('AHEE__EE_System__core_loaded_and_ready')
+			   && EE_Session::instance() instanceof EE_Session
+			   && EE_Session::instance()->isActive();
+	}
+
+
+	/**
+	 * @return bool
+	 */
+	public function isActive()
+	{
+		return $this->status === EE_Session::STATUS_OPEN;
+	}
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidSessionDataException
+	 */
+	public function open_session()
+	{
+		// check for existing session and retrieve it from db
+		if (! $this->_espresso_session()) {
+			// or just start a new one
+			$this->_create_espresso_session();
+		}
+	}
+
+
+	/**
+	 * @return bool
+	 */
+	public function expired()
+	{
+		return $this->_expired;
+	}
+
+
+	/**
+	 * @return void
+	 */
+	public function reset_expired()
+	{
+		$this->_expired = false;
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function expiration()
+	{
+		return $this->_expiration;
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function extension()
+	{
+		return apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS);
+	}
+
+
+	/**
+	 * @param int $time number of seconds to add to session expiration
+	 */
+	public function extend_expiration($time = 0)
+	{
+		$time = $time ? $time : $this->extension();
+		$this->_expiration += absint($time);
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function lifespan()
+	{
+		return $this->session_lifespan->inSeconds();
+	}
+
+
+	/**
+	 * This just sets some defaults for the _session data property
+	 *
+	 * @access private
+	 * @return void
+	 */
+	private function _set_defaults()
+	{
+		// set some defaults
+		foreach ($this->_default_session_vars as $key => $default_var) {
+			if (is_array($default_var)) {
+				$this->_session_data[ $key ] = array();
+			} else {
+				$this->_session_data[ $key ] = '';
+			}
+		}
+	}
+
+
+	/**
+	 * @retrieve  session data
+	 * @access    public
+	 * @return    string
+	 */
+	public function id()
+	{
+		return $this->_sid;
+	}
+
+
+	/**
+	 * @param \EE_Cart $cart
+	 * @return bool
+	 */
+	public function set_cart(EE_Cart $cart)
+	{
+		$this->_session_data['cart'] = $cart;
+		return true;
+	}
+
+
+	/**
+	 * reset_cart
+	 */
+	public function reset_cart()
+	{
+		do_action('AHEE__EE_Session__reset_cart__before_reset', $this);
+		$this->_session_data['cart'] = null;
+	}
+
+
+	/**
+	 * @return \EE_Cart
+	 */
+	public function cart()
+	{
+		return isset($this->_session_data['cart']) && $this->_session_data['cart'] instanceof EE_Cart
+			? $this->_session_data['cart']
+			: null;
+	}
+
+
+	/**
+	 * @param \EE_Checkout $checkout
+	 * @return bool
+	 */
+	public function set_checkout(EE_Checkout $checkout)
+	{
+		$this->_session_data['checkout'] = $checkout;
+		return true;
+	}
+
+
+	/**
+	 * reset_checkout
+	 */
+	public function reset_checkout()
+	{
+		do_action('AHEE__EE_Session__reset_checkout__before_reset', $this);
+		$this->_session_data['checkout'] = null;
+	}
+
+
+	/**
+	 * @return \EE_Checkout
+	 */
+	public function checkout()
+	{
+		return isset($this->_session_data['checkout']) && $this->_session_data['checkout'] instanceof EE_Checkout
+			? $this->_session_data['checkout']
+			: null;
+	}
+
+
+	/**
+	 * @param \EE_Transaction $transaction
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function set_transaction(EE_Transaction $transaction)
+	{
+		// first remove the session from the transaction before we save the transaction in the session
+		$transaction->set_txn_session_data(null);
+		$this->_session_data['transaction'] = $transaction;
+		return true;
+	}
+
+
+	/**
+	 * reset_transaction
+	 */
+	public function reset_transaction()
+	{
+		do_action('AHEE__EE_Session__reset_transaction__before_reset', $this);
+		$this->_session_data['transaction'] = null;
+	}
+
+
+	/**
+	 * @return \EE_Transaction
+	 */
+	public function transaction()
+	{
+		return isset($this->_session_data['transaction'])
+			   && $this->_session_data['transaction'] instanceof EE_Transaction
+			? $this->_session_data['transaction']
+			: null;
+	}
+
+
+	/**
+	 * retrieve session data
+	 *
+	 * @param null $key
+	 * @param bool $reset_cache
+	 * @return array
+	 */
+	public function get_session_data($key = null, $reset_cache = false)
+	{
+		if ($reset_cache) {
+			$this->reset_cart();
+			$this->reset_checkout();
+			$this->reset_transaction();
+		}
+		if (! empty($key)) {
+			return isset($this->_session_data[ $key ]) ? $this->_session_data[ $key ] : null;
+		}
+		return $this->_session_data;
+	}
+
+
+	/**
+	 * Returns TRUE on success, FALSE on fail
+	 *
+	 * @param array $data
+	 * @return bool
+	 */
+	public function set_session_data($data)
+	{
+		// nothing ??? bad data ??? go home!
+		if (empty($data) || ! is_array($data)) {
+			EE_Error::add_error(
+				esc_html__(
+					'No session data or invalid session data was provided.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		foreach ($data as $key => $value) {
+			if (isset($this->_default_session_vars[ $key ])) {
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							'Sorry! %s is a default session datum and can not be reset.',
+							'event_espresso'
+						),
+						$key
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+			$this->_session_data[ $key ] = $value;
+		}
+		return true;
+	}
+
+
+	/**
+	 * @initiate session
+	 * @access   private
+	 * @return TRUE on success, FALSE on fail
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidSessionDataException
+	 */
+	private function _espresso_session()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		// check that session has started
+		if (session_id() === '') {
+			// starts a new session if one doesn't already exist, or re-initiates an existing one
+			session_start();
+		}
+		$this->status = EE_Session::STATUS_OPEN;
+		// get our modified session ID
+		$this->_sid = $this->_generate_session_id();
+		// and the visitors IP
+		$this->_ip_address = $this->request->ipAddress();
+		// set the "user agent"
+		$this->_user_agent = $this->request->userAgent();
+		// now let's retrieve what's in the db
+		$session_data = $this->_retrieve_session_data();
+		if (! empty($session_data)) {
+			// get the current time in UTC
+			$this->_time = $this->_time !== null ? $this->_time : time();
+			// and reset the session expiration
+			$this->_expiration = isset($session_data['expiration'])
+				? $session_data['expiration']
+				: $this->_time + $this->session_lifespan->inSeconds();
+		} else {
+			// set initial site access time and the session expiration
+			$this->_set_init_access_and_expiration();
+			// set referer
+			$this->_session_data['pages_visited'][ $this->_session_data['init_access'] ] = isset($_SERVER['HTTP_REFERER'])
+				? esc_attr($_SERVER['HTTP_REFERER'])
+				: '';
+			// no previous session = go back and create one (on top of the data above)
+			return false;
+		}
+		// now the user agent
+		if ($session_data['user_agent'] !== $this->_user_agent) {
+			return false;
+		}
+		// wait a minute... how old are you?
+		if ($this->_time > $this->_expiration) {
+			// yer too old fer me!
+			$this->_expired = true;
+			// wipe out everything that isn't a default session datum
+			$this->clear_session(__CLASS__, __FUNCTION__);
+		}
+		// make event espresso session data available to plugin
+		$this->_session_data = array_merge($this->_session_data, $session_data);
+		return true;
+	}
+
+
+	/**
+	 * _get_session_data
+	 * Retrieves the session data, and attempts to correct any encoding issues that can occur due to improperly setup
+	 * databases
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidSessionDataException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _retrieve_session_data()
+	{
+		$ssn_key = EE_Session::session_id_prefix . $this->_sid;
+		try {
+			// we're using WP's Transient API to store session data using the PHP session ID as the option name
+			$session_data = $this->cache_storage->get($ssn_key, false);
+			if (empty($session_data)) {
+				return array();
+			}
+			if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
+				$hash_check = $this->cache_storage->get(
+					EE_Session::hash_check_prefix . $this->_sid,
+					false
+				);
+				if ($hash_check && $hash_check !== md5($session_data)) {
+					EE_Error::add_error(
+						sprintf(
+							__(
+								'The stored data for session %1$s failed to pass a hash check and therefore appears to be invalid.',
+								'event_espresso'
+							),
+							EE_Session::session_id_prefix . $this->_sid
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			}
+		} catch (Exception $e) {
+			// let's just eat that error for now and attempt to correct any corrupted data
+			global $wpdb;
+			$row = $wpdb->get_row(
+				$wpdb->prepare(
+					"SELECT option_value FROM {$wpdb->options} WHERE option_name = %s LIMIT 1",
+					'_transient_' . $ssn_key
+				)
+			);
+			$session_data = is_object($row) ? $row->option_value : null;
+			if ($session_data) {
+				$session_data = preg_replace_callback(
+					'!s:(d+):"(.*?)";!',
+					function ($match) {
+						return $match[1] === strlen($match[2])
+							? $match[0]
+							: 's:' . strlen($match[2]) . ':"' . $match[2] . '";';
+					},
+					$session_data
+				);
+			}
+			$session_data = maybe_unserialize($session_data);
+		}
+		// in case the data is encoded... try to decode it
+		$session_data = $this->encryption instanceof EE_Encryption
+			? $this->encryption->base64_string_decode($session_data)
+			: $session_data;
+		if (! is_array($session_data)) {
+			try {
+				$session_data = maybe_unserialize($session_data);
+			} catch (Exception $e) {
+				$msg = esc_html__(
+					'An error occurred while attempting to unserialize the session data.',
+					'event_espresso'
+				);
+				$msg .= WP_DEBUG
+					? '<br><pre>'
+					  . print_r($session_data, true)
+					  . '</pre><br>'
+					  . $this->find_serialize_error($session_data)
+					: '';
+				$this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+				throw new InvalidSessionDataException($msg, 0, $e);
+			}
+		}
+		// just a check to make sure the session array is indeed an array
+		if (! is_array($session_data)) {
+			// no?!?! then something is wrong
+			$msg = esc_html__(
+				'The session data is missing, invalid, or corrupted.',
+				'event_espresso'
+			);
+			$msg .= WP_DEBUG
+				? '<br><pre>' . print_r($session_data, true) . '</pre><br>' . $this->find_serialize_error($session_data)
+				: '';
+			$this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+			throw new InvalidSessionDataException($msg);
+		}
+		if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {
+			$session_data['transaction'] = EEM_Transaction::instance()->get_one_by_ID(
+				$session_data['transaction']
+			);
+		}
+		return $session_data;
+	}
+
+
+	/**
+	 * _generate_session_id
+	 * Retrieves the PHP session id either directly from the PHP session,
+	 * or from the $_REQUEST array if it was passed in from an AJAX request.
+	 * The session id is then salted and hashed (mmm sounds tasty)
+	 * so that it can be safely used as a $_REQUEST param
+	 *
+	 * @return string
+	 */
+	protected function _generate_session_id()
+	{
+		// check if the SID was passed explicitly, otherwise get from session, then add salt and hash it to reduce length
+		if (isset($_REQUEST['EESID'])) {
+			$session_id = sanitize_text_field($_REQUEST['EESID']);
+		} else {
+			$session_id = md5(session_id() . get_current_blog_id() . $this->_get_sid_salt());
+		}
+		return apply_filters('FHEE__EE_Session___generate_session_id__session_id', $session_id);
+	}
+
+
+	/**
+	 * _get_sid_salt
+	 *
+	 * @return string
+	 */
+	protected function _get_sid_salt()
+	{
+		// was session id salt already saved to db ?
+		if (empty($this->_sid_salt)) {
+			// no?  then maybe use WP defined constant
+			if (defined('AUTH_SALT')) {
+				$this->_sid_salt = AUTH_SALT;
+			}
+			// if salt doesn't exist or is too short
+			if (strlen($this->_sid_salt) < 32) {
+				// create a new one
+				$this->_sid_salt = wp_generate_password(64);
+			}
+			// and save it as a permanent session setting
+			$this->updateSessionSettings(array('sid_salt' => $this->_sid_salt));
+		}
+		return $this->_sid_salt;
+	}
+
+
+	/**
+	 * _set_init_access_and_expiration
+	 *
+	 * @return void
+	 */
+	protected function _set_init_access_and_expiration()
+	{
+		$this->_time = time();
+		$this->_expiration = $this->_time + $this->session_lifespan->inSeconds();
+		// set initial site access time
+		$this->_session_data['init_access'] = $this->_time;
+		// and the session expiration
+		$this->_session_data['expiration'] = $this->_expiration;
+	}
+
+
+	/**
+	 * @update session data  prior to saving to the db
+	 * @access public
+	 * @param bool $new_session
+	 * @return TRUE on success, FALSE on fail
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function update($new_session = false)
+	{
+		$this->_session_data = $this->_session_data !== null
+							   && is_array($this->_session_data)
+							   && isset($this->_session_data['id'])
+			? $this->_session_data
+			: array();
+		if (empty($this->_session_data)) {
+			$this->_set_defaults();
+		}
+		$session_data = array();
+		foreach ($this->_session_data as $key => $value) {
+			switch ($key) {
+				case 'id':
+					// session ID
+					$session_data['id'] = $this->_sid;
+					break;
+				case 'ip_address':
+					// visitor ip address
+					$session_data['ip_address'] = $this->request->ipAddress();
+					break;
+				case 'user_agent':
+					// visitor user_agent
+					$session_data['user_agent'] = $this->_user_agent;
+					break;
+				case 'init_access':
+					$session_data['init_access'] = absint($value);
+					break;
+				case 'last_access':
+					// current access time
+					$session_data['last_access'] = $this->_time;
+					break;
+				case 'expiration':
+					// when the session expires
+					$session_data['expiration'] = ! empty($this->_expiration)
+						? $this->_expiration
+						: $session_data['init_access'] + $this->session_lifespan->inSeconds();
+					break;
+				case 'user_id':
+					// current user if logged in
+					$session_data['user_id'] = $this->_wp_user_id();
+					break;
+				case 'pages_visited':
+					$page_visit = $this->_get_page_visit();
+					if ($page_visit) {
+						// set pages visited where the first will be the http referrer
+						$this->_session_data['pages_visited'][ $this->_time ] = $page_visit;
+						// we'll only save the last 10 page visits.
+						$session_data['pages_visited'] = array_slice($this->_session_data['pages_visited'], -10);
+					}
+					break;
+				default:
+					// carry any other data over
+					$session_data[ $key ] = $this->_session_data[ $key ];
+			}
+		}
+		$this->_session_data = $session_data;
+		// creating a new session does not require saving to the db just yet
+		if (! $new_session) {
+			// ready? let's save
+			if ($this->_save_session_to_db()) {
+				return true;
+			}
+			return false;
+		}
+		// meh, why not?
+		return true;
+	}
+
+
+	/**
+	 * @create session data array
+	 * @access public
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _create_espresso_session()
+	{
+		do_action('AHEE_log', __CLASS__, __FUNCTION__, '');
+		// use the update function for now with $new_session arg set to TRUE
+		return $this->update(true) ? true : false;
+	}
+
+
+	/**
+	 * _save_session_to_db
+	 *
+	 * @param bool $clear_session
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _save_session_to_db($clear_session = false)
+	{
+		// don't save sessions for crawlers
+		// and unless we're deleting the session data, don't save anything if there isn't a cart
+		if ($this->request->isBot()
+			|| (
+				! $clear_session
+				&& ! $this->cart() instanceof EE_Cart
+				&& apply_filters('FHEE__EE_Session___save_session_to_db__abort_session_save', true)
+			)
+		) {
+			return false;
+		}
+		$transaction = $this->transaction();
+		if ($transaction instanceof EE_Transaction) {
+			if (! $transaction->ID()) {
+				$transaction->save();
+			}
+			$this->_session_data['transaction'] = $transaction->ID();
+		}
+		// then serialize all of our session data
+		$session_data = serialize($this->_session_data);
+		// do we need to also encode it to avoid corrupted data when saved to the db?
+		$session_data = $this->_use_encryption
+			? $this->encryption->base64_string_encode($session_data)
+			: $session_data;
+		// maybe save hash check
+		if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
+			$this->cache_storage->add(
+				EE_Session::hash_check_prefix . $this->_sid,
+				md5($session_data),
+				$this->session_lifespan->inSeconds()
+			);
+		}
+		// we're using the Transient API for storing session data,
+		return $this->cache_storage->add(
+			EE_Session::session_id_prefix . $this->_sid,
+			$session_data,
+			$this->session_lifespan->inSeconds()
+		);
+	}
+
+
+	/**
+	 * @get    the full page request the visitor is accessing
+	 * @access public
+	 * @return string
+	 */
+	public function _get_page_visit()
+	{
+		$page_visit = home_url('/') . 'wp-admin/admin-ajax.php';
+		// check for request url
+		if (isset($_SERVER['REQUEST_URI'])) {
+			$http_host = '';
+			$page_id = '?';
+			$e_reg = '';
+			$request_uri = esc_url($_SERVER['REQUEST_URI']);
+			$ru_bits = explode('?', $request_uri);
+			$request_uri = $ru_bits[0];
+			// check for and grab host as well
+			if (isset($_SERVER['HTTP_HOST'])) {
+				$http_host = esc_url($_SERVER['HTTP_HOST']);
+			}
+			// check for page_id in SERVER REQUEST
+			if (isset($_REQUEST['page_id'])) {
+				// rebuild $e_reg without any of the extra parameters
+				$page_id = '?page_id=' . esc_attr($_REQUEST['page_id']) . '&amp;';
+			}
+			// check for $e_reg in SERVER REQUEST
+			if (isset($_REQUEST['ee'])) {
+				// rebuild $e_reg without any of the extra parameters
+				$e_reg = 'ee=' . esc_attr($_REQUEST['ee']);
+			}
+			$page_visit = rtrim($http_host . $request_uri . $page_id . $e_reg, '?');
+		}
+		return $page_visit !== home_url('/wp-admin/admin-ajax.php') ? $page_visit : '';
+	}
+
+
+	/**
+	 * @the    current wp user id
+	 * @access public
+	 * @return int
+	 */
+	public function _wp_user_id()
+	{
+		// if I need to explain the following lines of code, then you shouldn't be looking at this!
+		$this->_wp_user_id = get_current_user_id();
+		return $this->_wp_user_id;
+	}
+
+
+	/**
+	 * Clear EE_Session data
+	 *
+	 * @access public
+	 * @param string $class
+	 * @param string $function
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function clear_session($class = '', $function = '')
+	{
 //         echo '
 // <h3 style="color:#999;line-height:.9em;">
 // <span style="color:#2EA2CC">' . __CLASS__ . '</span>::<span style="color:#E76700">' . __FUNCTION__ . '( ' . $class . '::' . $function . '() )</span><br/>
 // <span style="font-size:9px;font-weight:normal;">' . __FILE__ . '</span>    <b style="font-size:10px;">  ' . __LINE__ . ' </b>
 // </h3>';
-        do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : ' . $class . '::' . $function . '()');
-        $this->reset_cart();
-        $this->reset_checkout();
-        $this->reset_transaction();
-        // wipe out everything that isn't a default session datum
-        $this->reset_data(array_keys($this->_session_data));
-        // reset initial site access time and the session expiration
-        $this->_set_init_access_and_expiration();
-        $this->_save_session_to_db(true);
-    }
-
-
-    /**
-     * resets all non-default session vars. Returns TRUE on success, FALSE on fail
-     *
-     * @param array|mixed $data_to_reset
-     * @param bool        $show_all_notices
-     * @return bool
-     */
-    public function reset_data($data_to_reset = array(), $show_all_notices = false)
-    {
-        // if $data_to_reset is not in an array, then put it in one
-        if (! is_array($data_to_reset)) {
-            $data_to_reset = array($data_to_reset);
-        }
-        // nothing ??? go home!
-        if (empty($data_to_reset)) {
-            EE_Error::add_error(
-                __(
-                    'No session data could be reset, because no session var name was provided.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        $return_value = true;
-        // since $data_to_reset is an array, cycle through the values
-        foreach ($data_to_reset as $reset) {
-            // first check to make sure it is a valid session var
-            if (isset($this->_session_data[ $reset ])) {
-                // then check to make sure it is not a default var
-                if (! array_key_exists($reset, $this->_default_session_vars)) {
-                    // remove session var
-                    unset($this->_session_data[ $reset ]);
-                    if ($show_all_notices) {
-                        EE_Error::add_success(
-                            sprintf(
-                                __('The session variable %s was removed.', 'event_espresso'),
-                                $reset
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                    }
-                } else {
-                    // yeeeeeeeeerrrrrrrrrrr OUT !!!!
-                    if ($show_all_notices) {
-                        EE_Error::add_error(
-                            sprintf(
-                                __(
-                                    'Sorry! %s is a default session datum and can not be reset.',
-                                    'event_espresso'
-                                ),
-                                $reset
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                    }
-                    $return_value = false;
-                }
-            } elseif ($show_all_notices) {
-                // oops! that session var does not exist!
-                EE_Error::add_error(
-                    sprintf(
-                        __(
-                            'The session item provided, %s, is invalid or does not exist.',
-                            'event_espresso'
-                        ),
-                        $reset
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                $return_value = false;
-            }
-        } // end of foreach
-        return $return_value;
-    }
-
-
-    /**
-     *   wp_loaded
-     *
-     * @access public
-     * @throws EE_Error
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    public function wp_loaded()
-    {
-        if ($this->request->requestParamIsSet('clear_session')) {
-            $this->clear_session(__CLASS__, __FUNCTION__);
-        }
-    }
-
-
-    /**
-     * Used to reset the entire object (for tests).
-     *
-     * @since 4.3.0
-     * @throws EE_Error
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    public function reset_instance()
-    {
-        $this->clear_session();
-        self::$_instance = null;
-    }
-
-
-    public function configure_garbage_collection_filters()
-    {
-        // run old filter we had for controlling session cleanup
-        $expired_session_transient_delete_query_limit = absint(
-            apply_filters(
-                'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
-                50
-            )
-        );
-        // is there a value? or one that is different than the default 50 records?
-        if ($expired_session_transient_delete_query_limit === 0) {
-            // hook into TransientCacheStorage in case Session cleanup was turned off
-            add_filter('FHEE__TransientCacheStorage__transient_cleanup_schedule', '__return_zero');
-        } elseif ($expired_session_transient_delete_query_limit !== 50) {
-            // or use that for the new transient cleanup query limit
-            add_filter(
-                'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
-                function () use ($expired_session_transient_delete_query_limit) {
-                    return $expired_session_transient_delete_query_limit;
-                }
-            );
-        }
-    }
-
-
-    /**
-     * @see http://stackoverflow.com/questions/10152904/unserialize-function-unserialize-error-at-offset/21389439#10152996
-     * @param $data1
-     * @return string
-     */
-    private function find_serialize_error($data1)
-    {
-        $error = '<pre>';
-        $data2 = preg_replace_callback(
-            '!s:(\d+):"(.*?)";!',
-            function ($match) {
-                return ($match[1] === strlen($match[2]))
-                    ? $match[0]
-                    : 's:'
-                      . strlen($match[2])
-                      . ':"'
-                      . $match[2]
-                      . '";';
-            },
-            $data1
-        );
-        $max = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
-        $error .= $data1 . PHP_EOL;
-        $error .= $data2 . PHP_EOL;
-        for ($i = 0; $i < $max; $i++) {
-            if (@$data1[ $i ] !== @$data2[ $i ]) {
-                $error .= 'Difference ' . @$data1[ $i ] . ' != ' . @$data2[ $i ] . PHP_EOL;
-                $error .= "\t-> ORD number " . ord(@$data1[ $i ]) . ' != ' . ord(@$data2[ $i ]) . PHP_EOL;
-                $error .= "\t-> Line Number = $i" . PHP_EOL;
-                $start = ($i - 20);
-                $start = ($start < 0) ? 0 : $start;
-                $length = 40;
-                $point = $max - $i;
-                if ($point < 20) {
-                    $rlength = 1;
-                    $rpoint = -$point;
-                } else {
-                    $rpoint = $length - 20;
-                    $rlength = 1;
-                }
-                $error .= "\t-> Section Data1  = ";
-                $error .= substr_replace(
-                    substr($data1, $start, $length),
-                    "<b style=\"color:green\">{$data1[ $i ]}</b>",
-                    $rpoint,
-                    $rlength
-                );
-                $error .= PHP_EOL;
-                $error .= "\t-> Section Data2  = ";
-                $error .= substr_replace(
-                    substr($data2, $start, $length),
-                    "<b style=\"color:red\">{$data2[ $i ]}</b>",
-                    $rpoint,
-                    $rlength
-                );
-                $error .= PHP_EOL;
-            }
-        }
-        $error .= '</pre>';
-        return $error;
-    }
-
-
-    /**
-     * Saves an  array of settings used for configuring aspects of session behaviour
-     *
-     * @param array $updated_settings
-     */
-    private function updateSessionSettings(array $updated_settings = array())
-    {
-        // add existing settings, but only if not included in incoming $updated_settings array
-        $updated_settings += get_option(EE_Session::OPTION_NAME_SETTINGS, array());
-        update_option(EE_Session::OPTION_NAME_SETTINGS, $updated_settings);
-    }
-
-
-    /**
-     * garbage_collection
-     */
-    public function garbageCollection()
-    {
-        // only perform during regular requests if last garbage collection was over an hour ago
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
-            $this->_last_gc = time();
-            $this->updateSessionSettings(array('last_gc' => $this->_last_gc));
-            /** @type WPDB $wpdb */
-            global $wpdb;
-            // filter the query limit. Set to 0 to turn off garbage collection
-            $expired_session_transient_delete_query_limit = absint(
-                apply_filters(
-                    'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
-                    50
-                )
-            );
-            // non-zero LIMIT means take out the trash
-            if ($expired_session_transient_delete_query_limit) {
-                $session_key = str_replace('_', '\_', EE_Session::session_id_prefix);
-                $hash_check_key = str_replace('_', '\_', EE_Session::hash_check_prefix);
-                // since transient expiration timestamps are set in the future, we can compare against NOW
-                // but we only want to pick up any trash that's been around for more than a day
-                $expiration = time() - DAY_IN_SECONDS;
-                $SQL = "
+		do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : ' . $class . '::' . $function . '()');
+		$this->reset_cart();
+		$this->reset_checkout();
+		$this->reset_transaction();
+		// wipe out everything that isn't a default session datum
+		$this->reset_data(array_keys($this->_session_data));
+		// reset initial site access time and the session expiration
+		$this->_set_init_access_and_expiration();
+		$this->_save_session_to_db(true);
+	}
+
+
+	/**
+	 * resets all non-default session vars. Returns TRUE on success, FALSE on fail
+	 *
+	 * @param array|mixed $data_to_reset
+	 * @param bool        $show_all_notices
+	 * @return bool
+	 */
+	public function reset_data($data_to_reset = array(), $show_all_notices = false)
+	{
+		// if $data_to_reset is not in an array, then put it in one
+		if (! is_array($data_to_reset)) {
+			$data_to_reset = array($data_to_reset);
+		}
+		// nothing ??? go home!
+		if (empty($data_to_reset)) {
+			EE_Error::add_error(
+				__(
+					'No session data could be reset, because no session var name was provided.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		$return_value = true;
+		// since $data_to_reset is an array, cycle through the values
+		foreach ($data_to_reset as $reset) {
+			// first check to make sure it is a valid session var
+			if (isset($this->_session_data[ $reset ])) {
+				// then check to make sure it is not a default var
+				if (! array_key_exists($reset, $this->_default_session_vars)) {
+					// remove session var
+					unset($this->_session_data[ $reset ]);
+					if ($show_all_notices) {
+						EE_Error::add_success(
+							sprintf(
+								__('The session variable %s was removed.', 'event_espresso'),
+								$reset
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+					}
+				} else {
+					// yeeeeeeeeerrrrrrrrrrr OUT !!!!
+					if ($show_all_notices) {
+						EE_Error::add_error(
+							sprintf(
+								__(
+									'Sorry! %s is a default session datum and can not be reset.',
+									'event_espresso'
+								),
+								$reset
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+					}
+					$return_value = false;
+				}
+			} elseif ($show_all_notices) {
+				// oops! that session var does not exist!
+				EE_Error::add_error(
+					sprintf(
+						__(
+							'The session item provided, %s, is invalid or does not exist.',
+							'event_espresso'
+						),
+						$reset
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				$return_value = false;
+			}
+		} // end of foreach
+		return $return_value;
+	}
+
+
+	/**
+	 *   wp_loaded
+	 *
+	 * @access public
+	 * @throws EE_Error
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	public function wp_loaded()
+	{
+		if ($this->request->requestParamIsSet('clear_session')) {
+			$this->clear_session(__CLASS__, __FUNCTION__);
+		}
+	}
+
+
+	/**
+	 * Used to reset the entire object (for tests).
+	 *
+	 * @since 4.3.0
+	 * @throws EE_Error
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	public function reset_instance()
+	{
+		$this->clear_session();
+		self::$_instance = null;
+	}
+
+
+	public function configure_garbage_collection_filters()
+	{
+		// run old filter we had for controlling session cleanup
+		$expired_session_transient_delete_query_limit = absint(
+			apply_filters(
+				'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
+				50
+			)
+		);
+		// is there a value? or one that is different than the default 50 records?
+		if ($expired_session_transient_delete_query_limit === 0) {
+			// hook into TransientCacheStorage in case Session cleanup was turned off
+			add_filter('FHEE__TransientCacheStorage__transient_cleanup_schedule', '__return_zero');
+		} elseif ($expired_session_transient_delete_query_limit !== 50) {
+			// or use that for the new transient cleanup query limit
+			add_filter(
+				'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
+				function () use ($expired_session_transient_delete_query_limit) {
+					return $expired_session_transient_delete_query_limit;
+				}
+			);
+		}
+	}
+
+
+	/**
+	 * @see http://stackoverflow.com/questions/10152904/unserialize-function-unserialize-error-at-offset/21389439#10152996
+	 * @param $data1
+	 * @return string
+	 */
+	private function find_serialize_error($data1)
+	{
+		$error = '<pre>';
+		$data2 = preg_replace_callback(
+			'!s:(\d+):"(.*?)";!',
+			function ($match) {
+				return ($match[1] === strlen($match[2]))
+					? $match[0]
+					: 's:'
+					  . strlen($match[2])
+					  . ':"'
+					  . $match[2]
+					  . '";';
+			},
+			$data1
+		);
+		$max = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
+		$error .= $data1 . PHP_EOL;
+		$error .= $data2 . PHP_EOL;
+		for ($i = 0; $i < $max; $i++) {
+			if (@$data1[ $i ] !== @$data2[ $i ]) {
+				$error .= 'Difference ' . @$data1[ $i ] . ' != ' . @$data2[ $i ] . PHP_EOL;
+				$error .= "\t-> ORD number " . ord(@$data1[ $i ]) . ' != ' . ord(@$data2[ $i ]) . PHP_EOL;
+				$error .= "\t-> Line Number = $i" . PHP_EOL;
+				$start = ($i - 20);
+				$start = ($start < 0) ? 0 : $start;
+				$length = 40;
+				$point = $max - $i;
+				if ($point < 20) {
+					$rlength = 1;
+					$rpoint = -$point;
+				} else {
+					$rpoint = $length - 20;
+					$rlength = 1;
+				}
+				$error .= "\t-> Section Data1  = ";
+				$error .= substr_replace(
+					substr($data1, $start, $length),
+					"<b style=\"color:green\">{$data1[ $i ]}</b>",
+					$rpoint,
+					$rlength
+				);
+				$error .= PHP_EOL;
+				$error .= "\t-> Section Data2  = ";
+				$error .= substr_replace(
+					substr($data2, $start, $length),
+					"<b style=\"color:red\">{$data2[ $i ]}</b>",
+					$rpoint,
+					$rlength
+				);
+				$error .= PHP_EOL;
+			}
+		}
+		$error .= '</pre>';
+		return $error;
+	}
+
+
+	/**
+	 * Saves an  array of settings used for configuring aspects of session behaviour
+	 *
+	 * @param array $updated_settings
+	 */
+	private function updateSessionSettings(array $updated_settings = array())
+	{
+		// add existing settings, but only if not included in incoming $updated_settings array
+		$updated_settings += get_option(EE_Session::OPTION_NAME_SETTINGS, array());
+		update_option(EE_Session::OPTION_NAME_SETTINGS, $updated_settings);
+	}
+
+
+	/**
+	 * garbage_collection
+	 */
+	public function garbageCollection()
+	{
+		// only perform during regular requests if last garbage collection was over an hour ago
+		if (! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
+			$this->_last_gc = time();
+			$this->updateSessionSettings(array('last_gc' => $this->_last_gc));
+			/** @type WPDB $wpdb */
+			global $wpdb;
+			// filter the query limit. Set to 0 to turn off garbage collection
+			$expired_session_transient_delete_query_limit = absint(
+				apply_filters(
+					'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
+					50
+				)
+			);
+			// non-zero LIMIT means take out the trash
+			if ($expired_session_transient_delete_query_limit) {
+				$session_key = str_replace('_', '\_', EE_Session::session_id_prefix);
+				$hash_check_key = str_replace('_', '\_', EE_Session::hash_check_prefix);
+				// since transient expiration timestamps are set in the future, we can compare against NOW
+				// but we only want to pick up any trash that's been around for more than a day
+				$expiration = time() - DAY_IN_SECONDS;
+				$SQL = "
                     SELECT option_name
                     FROM {$wpdb->options}
                     WHERE
@@ -1262,17 +1262,17 @@ 
                     AND option_value < {$expiration}
                     LIMIT {$expired_session_transient_delete_query_limit}
                 ";
-                // produces something like:
-                // SELECT option_name FROM wp_options
-                // WHERE ( option_name LIKE '\_transient\_timeout\_ee\_ssn\_%'
-                // OR option_name LIKE '\_transient\_timeout\_ee\_shc\_%' )
-                // AND option_value < 1508368198 LIMIT 50
-                $expired_sessions = $wpdb->get_col($SQL);
-                // valid results?
-                if (! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
-                    $this->cache_storage->deleteMany($expired_sessions, true);
-                }
-            }
-        }
-    }
+				// produces something like:
+				// SELECT option_name FROM wp_options
+				// WHERE ( option_name LIKE '\_transient\_timeout\_ee\_ssn\_%'
+				// OR option_name LIKE '\_transient\_timeout\_ee\_shc\_%' )
+				// AND option_value < 1508368198 LIMIT 50
+				$expired_sessions = $wpdb->get_col($SQL);
+				// valid results?
+				if (! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
+					$this->cache_storage->deleteMany($expired_sessions, true);
+				}
+			}
+		}
+	}
 }

Spacing +53 added lines, -53 removed lines

@@ -186,7 +186,7 @@ 
         // check if class object is instantiated
         // session loading is turned ON by default, but prior to the init hook, can be turned back OFF via:
         // add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
+        if ( ! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
             self::$_instance = new self(
                 $cache_storage,
                 $lifespan,
@@ -219,21 +219,21 @@ 
         // but prior to the 'AHEE__EE_System__core_loaded_and_ready' hook
         // (which currently fires on the init hook at priority 9),
         // can be turned back OFF via: add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! apply_filters('FHEE_load_EE_Session', true)) {
+        if ( ! apply_filters('FHEE_load_EE_Session', true)) {
             return;
         }
         $this->session_lifespan = $lifespan;
         $this->request = $request;
-        if (! defined('ESPRESSO_SESSION')) {
+        if ( ! defined('ESPRESSO_SESSION')) {
             define('ESPRESSO_SESSION', true);
         }
         // retrieve session options from db
         $session_settings = (array) get_option(EE_Session::OPTION_NAME_SETTINGS, array());
-        if (! empty($session_settings)) {
+        if ( ! empty($session_settings)) {
             // cycle though existing session options
             foreach ($session_settings as $var_name => $session_setting) {
                 // set values for class properties
-                $var_name = '_' . $var_name;
+                $var_name = '_'.$var_name;
                 $this->{$var_name} = $session_setting;
             }
         }
@@ -292,7 +292,7 @@ 
     public function open_session()
     {
         // check for existing session and retrieve it from db
-        if (! $this->_espresso_session()) {
+        if ( ! $this->_espresso_session()) {
             // or just start a new one
             $this->_create_espresso_session();
         }
@@ -365,9 +365,9 @@ 
         // set some defaults
         foreach ($this->_default_session_vars as $key => $default_var) {
             if (is_array($default_var)) {
-                $this->_session_data[ $key ] = array();
+                $this->_session_data[$key] = array();
             } else {
-                $this->_session_data[ $key ] = '';
+                $this->_session_data[$key] = '';
             }
         }
     }
@@ -498,8 +498,8 @@ 
             $this->reset_checkout();
             $this->reset_transaction();
         }
-        if (! empty($key)) {
-            return isset($this->_session_data[ $key ]) ? $this->_session_data[ $key ] : null;
+        if ( ! empty($key)) {
+            return isset($this->_session_data[$key]) ? $this->_session_data[$key] : null;
         }
         return $this->_session_data;
     }
@@ -527,7 +527,7 @@ 
             return false;
         }
         foreach ($data as $key => $value) {
-            if (isset($this->_default_session_vars[ $key ])) {
+            if (isset($this->_default_session_vars[$key])) {
                 EE_Error::add_error(
                     sprintf(
                         esc_html__(
@@ -542,7 +542,7 @@ 
                 );
                 return false;
             }
-            $this->_session_data[ $key ] = $value;
+            $this->_session_data[$key] = $value;
         }
         return true;
     }
@@ -575,7 +575,7 @@ 
         $this->_user_agent = $this->request->userAgent();
         // now let's retrieve what's in the db
         $session_data = $this->_retrieve_session_data();
-        if (! empty($session_data)) {
+        if ( ! empty($session_data)) {
             // get the current time in UTC
             $this->_time = $this->_time !== null ? $this->_time : time();
             // and reset the session expiration
@@ -586,7 +586,7 @@ 
             // set initial site access time and the session expiration
             $this->_set_init_access_and_expiration();
             // set referer
-            $this->_session_data['pages_visited'][ $this->_session_data['init_access'] ] = isset($_SERVER['HTTP_REFERER'])
+            $this->_session_data['pages_visited'][$this->_session_data['init_access']] = isset($_SERVER['HTTP_REFERER'])
                 ? esc_attr($_SERVER['HTTP_REFERER'])
                 : '';
             // no previous session = go back and create one (on top of the data above)
@@ -623,7 +623,7 @@ 
      */
     protected function _retrieve_session_data()
     {
-        $ssn_key = EE_Session::session_id_prefix . $this->_sid;
+        $ssn_key = EE_Session::session_id_prefix.$this->_sid;
         try {
             // we're using WP's Transient API to store session data using the PHP session ID as the option name
             $session_data = $this->cache_storage->get($ssn_key, false);
@@ -632,7 +632,7 @@ 
             }
             if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
                 $hash_check = $this->cache_storage->get(
-                    EE_Session::hash_check_prefix . $this->_sid,
+                    EE_Session::hash_check_prefix.$this->_sid,
                     false
                 );
                 if ($hash_check && $hash_check !== md5($session_data)) {
@@ -642,7 +642,7 @@ 
                                 'The stored data for session %1$s failed to pass a hash check and therefore appears to be invalid.',
                                 'event_espresso'
                             ),
-                            EE_Session::session_id_prefix . $this->_sid
+                            EE_Session::session_id_prefix.$this->_sid
                         ),
                         __FILE__,
                         __FUNCTION__,
@@ -656,17 +656,17 @@ 
             $row = $wpdb->get_row(
                 $wpdb->prepare(
                     "SELECT option_value FROM {$wpdb->options} WHERE option_name = %s LIMIT 1",
-                    '_transient_' . $ssn_key
+                    '_transient_'.$ssn_key
                 )
             );
             $session_data = is_object($row) ? $row->option_value : null;
             if ($session_data) {
                 $session_data = preg_replace_callback(
                     '!s:(d+):"(.*?)";!',
-                    function ($match) {
+                    function($match) {
                         return $match[1] === strlen($match[2])
                             ? $match[0]
-                            : 's:' . strlen($match[2]) . ':"' . $match[2] . '";';
+                            : 's:'.strlen($match[2]).':"'.$match[2].'";';
                     },
                     $session_data
                 );
@@ -677,7 +677,7 @@ 
         $session_data = $this->encryption instanceof EE_Encryption
             ? $this->encryption->base64_string_decode($session_data)
             : $session_data;
-        if (! is_array($session_data)) {
+        if ( ! is_array($session_data)) {
             try {
                 $session_data = maybe_unserialize($session_data);
             } catch (Exception $e) {
@@ -691,21 +691,21 @@ 
                       . '</pre><br>'
                       . $this->find_serialize_error($session_data)
                     : '';
-                $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+                $this->cache_storage->delete(EE_Session::session_id_prefix.$this->_sid);
                 throw new InvalidSessionDataException($msg, 0, $e);
             }
         }
         // just a check to make sure the session array is indeed an array
-        if (! is_array($session_data)) {
+        if ( ! is_array($session_data)) {
             // no?!?! then something is wrong
             $msg = esc_html__(
                 'The session data is missing, invalid, or corrupted.',
                 'event_espresso'
             );
             $msg .= WP_DEBUG
-                ? '<br><pre>' . print_r($session_data, true) . '</pre><br>' . $this->find_serialize_error($session_data)
+                ? '<br><pre>'.print_r($session_data, true).'</pre><br>'.$this->find_serialize_error($session_data)
                 : '';
-            $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+            $this->cache_storage->delete(EE_Session::session_id_prefix.$this->_sid);
             throw new InvalidSessionDataException($msg);
         }
         if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {
@@ -732,7 +732,7 @@ 
         if (isset($_REQUEST['EESID'])) {
             $session_id = sanitize_text_field($_REQUEST['EESID']);
         } else {
-            $session_id = md5(session_id() . get_current_blog_id() . $this->_get_sid_salt());
+            $session_id = md5(session_id().get_current_blog_id().$this->_get_sid_salt());
         }
         return apply_filters('FHEE__EE_Session___generate_session_id__session_id', $session_id);
     }
@@ -835,19 +835,19 @@ 
                     $page_visit = $this->_get_page_visit();
                     if ($page_visit) {
                         // set pages visited where the first will be the http referrer
-                        $this->_session_data['pages_visited'][ $this->_time ] = $page_visit;
+                        $this->_session_data['pages_visited'][$this->_time] = $page_visit;
                         // we'll only save the last 10 page visits.
                         $session_data['pages_visited'] = array_slice($this->_session_data['pages_visited'], -10);
                     }
                     break;
                 default:
                     // carry any other data over
-                    $session_data[ $key ] = $this->_session_data[ $key ];
+                    $session_data[$key] = $this->_session_data[$key];
             }
         }
         $this->_session_data = $session_data;
         // creating a new session does not require saving to the db just yet
-        if (! $new_session) {
+        if ( ! $new_session) {
             // ready? let's save
             if ($this->_save_session_to_db()) {
                 return true;
@@ -901,7 +901,7 @@ 
         }
         $transaction = $this->transaction();
         if ($transaction instanceof EE_Transaction) {
-            if (! $transaction->ID()) {
+            if ( ! $transaction->ID()) {
                 $transaction->save();
             }
             $this->_session_data['transaction'] = $transaction->ID();
@@ -915,14 +915,14 @@ 
         // maybe save hash check
         if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
             $this->cache_storage->add(
-                EE_Session::hash_check_prefix . $this->_sid,
+                EE_Session::hash_check_prefix.$this->_sid,
                 md5($session_data),
                 $this->session_lifespan->inSeconds()
             );
         }
         // we're using the Transient API for storing session data,
         return $this->cache_storage->add(
-            EE_Session::session_id_prefix . $this->_sid,
+            EE_Session::session_id_prefix.$this->_sid,
             $session_data,
             $this->session_lifespan->inSeconds()
         );
@@ -936,7 +936,7 @@ 
      */
     public function _get_page_visit()
     {
-        $page_visit = home_url('/') . 'wp-admin/admin-ajax.php';
+        $page_visit = home_url('/').'wp-admin/admin-ajax.php';
         // check for request url
         if (isset($_SERVER['REQUEST_URI'])) {
             $http_host = '';
@@ -952,14 +952,14 @@ 
             // check for page_id in SERVER REQUEST
             if (isset($_REQUEST['page_id'])) {
                 // rebuild $e_reg without any of the extra parameters
-                $page_id = '?page_id=' . esc_attr($_REQUEST['page_id']) . '&amp;';
+                $page_id = '?page_id='.esc_attr($_REQUEST['page_id']).'&amp;';
             }
             // check for $e_reg in SERVER REQUEST
             if (isset($_REQUEST['ee'])) {
                 // rebuild $e_reg without any of the extra parameters
-                $e_reg = 'ee=' . esc_attr($_REQUEST['ee']);
+                $e_reg = 'ee='.esc_attr($_REQUEST['ee']);
             }
-            $page_visit = rtrim($http_host . $request_uri . $page_id . $e_reg, '?');
+            $page_visit = rtrim($http_host.$request_uri.$page_id.$e_reg, '?');
         }
         return $page_visit !== home_url('/wp-admin/admin-ajax.php') ? $page_visit : '';
     }
@@ -997,7 +997,7 @@ 
 // <span style="color:#2EA2CC">' . __CLASS__ . '</span>::<span style="color:#E76700">' . __FUNCTION__ . '( ' . $class . '::' . $function . '() )</span><br/>
 // <span style="font-size:9px;font-weight:normal;">' . __FILE__ . '</span>    <b style="font-size:10px;">  ' . __LINE__ . ' </b>
 // </h3>';
-        do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : ' . $class . '::' . $function . '()');
+        do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : '.$class.'::'.$function.'()');
         $this->reset_cart();
         $this->reset_checkout();
         $this->reset_transaction();
@@ -1019,7 +1019,7 @@ 
     public function reset_data($data_to_reset = array(), $show_all_notices = false)
     {
         // if $data_to_reset is not in an array, then put it in one
-        if (! is_array($data_to_reset)) {
+        if ( ! is_array($data_to_reset)) {
             $data_to_reset = array($data_to_reset);
         }
         // nothing ??? go home!
@@ -1039,11 +1039,11 @@ 
         // since $data_to_reset is an array, cycle through the values
         foreach ($data_to_reset as $reset) {
             // first check to make sure it is a valid session var
-            if (isset($this->_session_data[ $reset ])) {
+            if (isset($this->_session_data[$reset])) {
                 // then check to make sure it is not a default var
-                if (! array_key_exists($reset, $this->_default_session_vars)) {
+                if ( ! array_key_exists($reset, $this->_default_session_vars)) {
                     // remove session var
-                    unset($this->_session_data[ $reset ]);
+                    unset($this->_session_data[$reset]);
                     if ($show_all_notices) {
                         EE_Error::add_success(
                             sprintf(
@@ -1144,7 +1144,7 @@ 
             // or use that for the new transient cleanup query limit
             add_filter(
                 'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
-                function () use ($expired_session_transient_delete_query_limit) {
+                function() use ($expired_session_transient_delete_query_limit) {
                     return $expired_session_transient_delete_query_limit;
                 }
             );
@@ -1162,7 +1162,7 @@ 
         $error = '<pre>';
         $data2 = preg_replace_callback(
             '!s:(\d+):"(.*?)";!',
-            function ($match) {
+            function($match) {
                 return ($match[1] === strlen($match[2]))
                     ? $match[0]
                     : 's:'
@@ -1174,13 +1174,13 @@ 
             $data1
         );
         $max = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
-        $error .= $data1 . PHP_EOL;
-        $error .= $data2 . PHP_EOL;
+        $error .= $data1.PHP_EOL;
+        $error .= $data2.PHP_EOL;
         for ($i = 0; $i < $max; $i++) {
-            if (@$data1[ $i ] !== @$data2[ $i ]) {
-                $error .= 'Difference ' . @$data1[ $i ] . ' != ' . @$data2[ $i ] . PHP_EOL;
-                $error .= "\t-> ORD number " . ord(@$data1[ $i ]) . ' != ' . ord(@$data2[ $i ]) . PHP_EOL;
-                $error .= "\t-> Line Number = $i" . PHP_EOL;
+            if (@$data1[$i] !== @$data2[$i]) {
+                $error .= 'Difference '.@$data1[$i].' != '.@$data2[$i].PHP_EOL;
+                $error .= "\t-> ORD number ".ord(@$data1[$i]).' != '.ord(@$data2[$i]).PHP_EOL;
+                $error .= "\t-> Line Number = $i".PHP_EOL;
                 $start = ($i - 20);
                 $start = ($start < 0) ? 0 : $start;
                 $length = 40;
@@ -1195,7 +1195,7 @@ 
                 $error .= "\t-> Section Data1  = ";
                 $error .= substr_replace(
                     substr($data1, $start, $length),
-                    "<b style=\"color:green\">{$data1[ $i ]}</b>",
+                    "<b style=\"color:green\">{$data1[$i]}</b>",
                     $rpoint,
                     $rlength
                 );
@@ -1203,7 +1203,7 @@ 
                 $error .= "\t-> Section Data2  = ";
                 $error .= substr_replace(
                     substr($data2, $start, $length),
-                    "<b style=\"color:red\">{$data2[ $i ]}</b>",
+                    "<b style=\"color:red\">{$data2[$i]}</b>",
                     $rpoint,
                     $rlength
                 );
@@ -1234,7 +1234,7 @@ 
     public function garbageCollection()
     {
         // only perform during regular requests if last garbage collection was over an hour ago
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
+        if ( ! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
             $this->_last_gc = time();
             $this->updateSessionSettings(array('last_gc' => $this->_last_gc));
             /** @type WPDB $wpdb */
@@ -1269,7 +1269,7 @@ 
                 // AND option_value < 1508368198 LIMIT 50
                 $expired_sessions = $wpdb->get_col($SQL);
                 // valid results?
-                if (! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
+                if ( ! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
                     $this->cache_storage->deleteMany($expired_sessions, true);
                 }
             }

core/EE_Dependency_Map.core.php

Indentation +994 added lines, -994 removed lines

@@ -20,998 +20,998 @@
 class EE_Dependency_Map
 {
 
-    /**
-     * This means that the requested class dependency is not present in the dependency map
-     */
-    const not_registered = 0;
-
-    /**
-     * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
-     */
-    const load_new_object = 1;
-
-    /**
-     * This instructs class loaders to return a previously instantiated and cached object for the requested class.
-     * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
-     */
-    const load_from_cache = 2;
-
-    /**
-     * When registering a dependency,
-     * this indicates to keep any existing dependencies that already exist,
-     * and simply discard any new dependencies declared in the incoming data
-     */
-    const KEEP_EXISTING_DEPENDENCIES = 0;
-
-    /**
-     * When registering a dependency,
-     * this indicates to overwrite any existing dependencies that already exist using the incoming data
-     */
-    const OVERWRITE_DEPENDENCIES = 1;
-
-
-    /**
-     * @type EE_Dependency_Map $_instance
-     */
-    protected static $_instance;
-
-    /**
-     * @var ClassInterfaceCache $class_cache
-     */
-    private $class_cache;
-
-    /**
-     * @type RequestInterface $request
-     */
-    protected $request;
-
-    /**
-     * @type LegacyRequestInterface $legacy_request
-     */
-    protected $legacy_request;
-
-    /**
-     * @type ResponseInterface $response
-     */
-    protected $response;
-
-    /**
-     * @type LoaderInterface $loader
-     */
-    protected $loader;
-
-    /**
-     * @type array $_dependency_map
-     */
-    protected $_dependency_map = array();
-
-    /**
-     * @type array $_class_loaders
-     */
-    protected $_class_loaders = array();
-
-
-    /**
-     * EE_Dependency_Map constructor.
-     *
-     * @param ClassInterfaceCache $class_cache
-     */
-    protected function __construct(ClassInterfaceCache $class_cache)
-    {
-        $this->class_cache = $class_cache;
-        do_action('EE_Dependency_Map____construct', $this);
-    }
-
-
-    /**
-     * @return void
-     */
-    public function initialize()
-    {
-        $this->_register_core_dependencies();
-        $this->_register_core_class_loaders();
-        $this->_register_core_aliases();
-    }
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param ClassInterfaceCache|null $class_cache
-     * @return EE_Dependency_Map
-     */
-    public static function instance(ClassInterfaceCache $class_cache = null)
-    {
-        // check if class object is instantiated, and instantiated properly
-        if (! self::$_instance instanceof EE_Dependency_Map
-            && $class_cache instanceof ClassInterfaceCache
-        ) {
-            self::$_instance = new EE_Dependency_Map($class_cache);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * @param RequestInterface $request
-     */
-    public function setRequest(RequestInterface $request)
-    {
-        $this->request = $request;
-    }
-
-
-    /**
-     * @param LegacyRequestInterface $legacy_request
-     */
-    public function setLegacyRequest(LegacyRequestInterface $legacy_request)
-    {
-        $this->legacy_request = $legacy_request;
-    }
-
-
-    /**
-     * @param ResponseInterface $response
-     */
-    public function setResponse(ResponseInterface $response)
-    {
-        $this->response = $response;
-    }
-
-
-    /**
-     * @param LoaderInterface $loader
-     */
-    public function setLoader(LoaderInterface $loader)
-    {
-        $this->loader = $loader;
-    }
-
-
-    /**
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public static function register_dependencies(
-        $class,
-        array $dependencies,
-        $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ) {
-        return self::$_instance->registerDependencies($class, $dependencies, $overwrite);
-    }
-
-
-    /**
-     * Assigns an array of class names and corresponding load sources (new or cached)
-     * to the class specified by the first parameter.
-     * IMPORTANT !!!
-     * The order of elements in the incoming $dependencies array MUST match
-     * the order of the constructor parameters for the class in question.
-     * This is especially important when overriding any existing dependencies that are registered.
-     * the third parameter controls whether any duplicate dependencies are overwritten or not.
-     *
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public function registerDependencies(
-        $class,
-        array $dependencies,
-        $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ) {
-        $class = trim($class, '\\');
-        $registered = false;
-        if (empty(self::$_instance->_dependency_map[ $class ])) {
-            self::$_instance->_dependency_map[ $class ] = array();
-        }
-        // we need to make sure that any aliases used when registering a dependency
-        // get resolved to the correct class name
-        foreach ($dependencies as $dependency => $load_source) {
-            $alias = self::$_instance->getFqnForAlias($dependency);
-            if ($overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
-                || ! isset(self::$_instance->_dependency_map[ $class ][ $alias ])
-            ) {
-                unset($dependencies[ $dependency ]);
-                $dependencies[ $alias ] = $load_source;
-                $registered = true;
-            }
-        }
-        // now add our two lists of dependencies together.
-        // using Union (+=) favours the arrays in precedence from left to right,
-        // so $dependencies is NOT overwritten because it is listed first
-        // ie: with A = B + C, entries in B take precedence over duplicate entries in C
-        // Union is way faster than array_merge() but should be used with caution...
-        // especially with numerically indexed arrays
-        $dependencies += self::$_instance->_dependency_map[ $class ];
-        // now we need to ensure that the resulting dependencies
-        // array only has the entries that are required for the class
-        // so first count how many dependencies were originally registered for the class
-        $dependency_count = count(self::$_instance->_dependency_map[ $class ]);
-        // if that count is non-zero (meaning dependencies were already registered)
-        self::$_instance->_dependency_map[ $class ] = $dependency_count
-            // then truncate the  final array to match that count
-            ? array_slice($dependencies, 0, $dependency_count)
-            // otherwise just take the incoming array because nothing previously existed
-            : $dependencies;
-        return $registered;
-    }
-
-
-    /**
-     * @param string $class_name
-     * @param string $loader
-     * @return bool
-     * @throws DomainException
-     */
-    public static function register_class_loader($class_name, $loader = 'load_core')
-    {
-        if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
-            throw new DomainException(
-                esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
-            );
-        }
-        // check that loader is callable or method starts with "load_" and exists in EE_Registry
-        if (! is_callable($loader)
-            && (
-                strpos($loader, 'load_') !== 0
-                || ! method_exists('EE_Registry', $loader)
-            )
-        ) {
-            throw new DomainException(
-                sprintf(
-                    esc_html__(
-                        '"%1$s" is not a valid loader method on EE_Registry.',
-                        'event_espresso'
-                    ),
-                    $loader
-                )
-            );
-        }
-        $class_name = self::$_instance->getFqnForAlias($class_name);
-        if (! isset(self::$_instance->_class_loaders[ $class_name ])) {
-            self::$_instance->_class_loaders[ $class_name ] = $loader;
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * @return array
-     */
-    public function dependency_map()
-    {
-        return $this->_dependency_map;
-    }
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name
-     *
-     * @param string $class_name
-     * @return boolean
-     */
-    public function has($class_name = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        return isset($this->_dependency_map[ $class_name ]) ? true : false;
-    }
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name AND dependency
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return bool
-     */
-    public function has_dependency_for_class($class_name = '', $dependency = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->getFqnForAlias($dependency, $class_name);
-        return isset($this->_dependency_map[ $class_name ][ $dependency ])
-            ? true
-            : false;
-    }
-
-
-    /**
-     * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return int
-     */
-    public function loading_strategy_for_class_dependency($class_name = '', $dependency = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->getFqnForAlias($dependency);
-        return $this->has_dependency_for_class($class_name, $dependency)
-            ? $this->_dependency_map[ $class_name ][ $dependency ]
-            : EE_Dependency_Map::not_registered;
-    }
-
-
-    /**
-     * @param string $class_name
-     * @return string | Closure
-     */
-    public function class_loader($class_name)
-    {
-        // all legacy models use load_model()
-        if (strpos($class_name, 'EEM_') === 0) {
-            return 'load_model';
-        }
-        // EE_CPT_*_Strategy classes like EE_CPT_Event_Strategy, EE_CPT_Venue_Strategy, etc
-        // perform strpos() first to avoid loading regex every time we load a class
-        if (strpos($class_name, 'EE_CPT_') === 0
-            && preg_match('/^EE_CPT_([a-zA-Z]+)_Strategy$/', $class_name)
-        ) {
-            return 'load_core';
-        }
-        $class_name = $this->getFqnForAlias($class_name);
-        return isset($this->_class_loaders[ $class_name ]) ? $this->_class_loaders[ $class_name ] : '';
-    }
-
-
-    /**
-     * @return array
-     */
-    public function class_loaders()
-    {
-        return $this->_class_loaders;
-    }
-
-
-    /**
-     * adds an alias for a classname
-     *
-     * @param string $fqcn      the class name that should be used (concrete class to replace interface)
-     * @param string $alias     the class name that would be type hinted for (abstract parent or interface)
-     * @param string $for_class the class that has the dependency (is type hinting for the interface)
-     */
-    public function add_alias($fqcn, $alias, $for_class = '')
-    {
-        $this->class_cache->addAlias($fqcn, $alias, $for_class);
-    }
-
-
-    /**
-     * Returns TRUE if the provided fully qualified name IS an alias
-     * WHY?
-     * Because if a class is type hinting for a concretion,
-     * then why would we need to find another class to supply it?
-     * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
-     * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
-     * Don't go looking for some substitute.
-     * Whereas if a class is type hinting for an interface...
-     * then we need to find an actual class to use.
-     * So the interface IS the alias for some other FQN,
-     * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
-     * represents some other class.
-     *
-     * @param string $fqn
-     * @param string $for_class
-     * @return bool
-     */
-    public function isAlias($fqn = '', $for_class = '')
-    {
-        return $this->class_cache->isAlias($fqn, $for_class);
-    }
-
-
-    /**
-     * Returns a FQN for provided alias if one exists, otherwise returns the original $alias
-     * functions recursively, so that multiple aliases can be used to drill down to a FQN
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @param string $alias
-     * @param string $for_class
-     * @return string
-     */
-    public function getFqnForAlias($alias = '', $for_class = '')
-    {
-        return (string) $this->class_cache->getFqnForAlias($alias, $for_class);
-    }
-
-
-    /**
-     * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
-     * if one exists, or whether a new object should be generated every time the requested class is loaded.
-     * This is done by using the following class constants:
-     *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
-     *        EE_Dependency_Map::load_new_object - generates a new object every time
-     */
-    protected function _register_core_dependencies()
-    {
-        $this->_dependency_map = array(
-            'EE_Request_Handler'                                                                                          => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_System'                                                                                                   => array(
-                'EE_Registry'                                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EE_Maintenance_Mode'                         => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Session'                                                                                                  => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
-                'EE_Encryption'                                            => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Cart'                                                                                                     => array(
-                'EE_Session' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Front_Controller'                                                                                         => array(
-                'EE_Registry'              => EE_Dependency_Map::load_from_cache,
-                'EE_Request_Handler'       => EE_Dependency_Map::load_from_cache,
-                'EE_Module_Request_Router' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messenger_Collection_Loader'                                                                              => array(
-                'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Message_Type_Collection_Loader'                                                                           => array(
-                'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Message_Resource_Manager'                                                                                 => array(
-                'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
-                'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
-                'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Message_Factory'                                                                                          => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_messages'                                                                                                 => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Generator'                                                                                       => array(
-                'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
-                'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
-                'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
-                'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Processor'                                                                                       => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Queue'                                                                                           => array(
-                'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Messages_Template_Defaults'                                                                               => array(
-                'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
-                'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Message_To_Generate_From_Request'                                                                         => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-                'EE_Request_Handler'          => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandBus'                                                             => array(
-                'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\services\commands\CommandHandler'                                                              => array(
-                'EE_Registry'         => EE_Dependency_Map::load_from_cache,
-                'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandHandlerManager'                                                  => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CompositeCommandHandler'                                                => array(
-                'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandFactory'                                                         => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\middleware\CapChecker'                                                  => array(
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                         => array(
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                     => array(
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CreateRegistrationCommandHandler'                          => array(
-                'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => array(
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => array(
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => array(
-                'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => array(
-                'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => array(
-                'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => array(
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                   => array(
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler'                                  => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\database\TableManager'                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Data_Migration_Class_Base'                                                                                => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_1_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_2_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_3_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_4_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_5_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_6_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_7_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_8_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_9_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\assets\I18nRegistry'                                                             => array(
-                array(),
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\assets\Registry'                                                                 => array(
-                'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\I18nRegistry'    => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                             => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                              => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                        => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                              => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                        => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                               => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\cache\BasicCacheManager'                                                         => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\cache\PostRelatedCacheManager'                                                   => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\validation\email\EmailValidationService'                                  => array(
-                'EE_Registration_Config'                     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\values\EmailAddress'                                                               => array(
-                null,
-                'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\orm\ModelFieldFactory'                                                           => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'LEGACY_MODELS'                                                                                               => array(
-                null,
-                'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Module_Request_Router'                                                                                    => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Registration_Processor'                                                                                   => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'                                      => array(
-                null,
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-                'EE_Request'                                                          => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\licensing\LicenseService'                                                        => array(
-                'EventEspresso\core\domain\services\pue\Stats'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\pue\Config' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Admin_Transactions_List_Table'                                                                            => array(
-                null,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\pue\Stats'                                                                => array(
-                'EventEspresso\core\domain\services\pue\Config'        => EE_Dependency_Map::load_from_cache,
-                'EE_Maintenance_Mode'                                  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\pue\StatsGatherer' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\pue\Config'                                                               => array(
-                'EE_Network_Config' => EE_Dependency_Map::load_from_cache,
-                'EE_Config'         => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\pue\StatsGatherer'                                                        => array(
-                'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
-                'EEM_Event'          => EE_Dependency_Map::load_from_cache,
-                'EEM_Datetime'       => EE_Dependency_Map::load_from_cache,
-                'EEM_Ticket'         => EE_Dependency_Map::load_from_cache,
-                'EEM_Registration'   => EE_Dependency_Map::load_from_cache,
-                'EEM_Transaction'    => EE_Dependency_Map::load_from_cache,
-                'EE_Config'          => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\ExitModal'                                                          => array(
-                'EventEspresso\core\services\assets\Registry' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\PluginUpsells'                                                      => array(
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\caffeinated\modules\recaptcha_invisible\InvisibleRecaptcha'                                    => array(
-                'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
-                'EE_Session'             => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\caffeinated\modules\recaptcha_invisible\RecaptchaAdminSettings'                                => array(
-                'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\modules\ticket_selector\ProcessTicketSelector'                                                 => array(
-                'EE_Core_Config'                                                          => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                             => EE_Dependency_Map::load_from_cache,
-                'EE_Session'                                                              => EE_Dependency_Map::load_from_cache,
-                'EEM_Ticket'                                                              => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker'                                     => array(
-                'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'                              => array(
-                'EE_Core_Config'                             => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'                                => array(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'                               => array(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_CPT_Strategy'                                                                                             => array(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\loaders\ObjectIdentifier'                                                        => array(
-                'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\assets\CoreAssetManager'                                                  => array(
-                'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
-                'EE_Currency_Config'                                 => EE_Dependency_Map::load_from_cache,
-                'EE_Template_Config'                                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\Domain'                   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\Registry'        => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\policy\PrivacyPolicy' => array(
-                'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendee' => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendeeBillingData' => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-                'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportCheckins' => array(
-                'EEM_Checkin' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportRegistration' => array(
-                'EEM_Registration' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportTransaction' => array(
-                'EEM_Transaction' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAttendeeData' => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAnswers' => array(
-                'EEM_Answer' => EE_Dependency_Map::load_from_cache,
-                'EEM_Question' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\CPTs\CptQueryModifier' => array(
-                null,
-                null,
-                null,
-                'EE_Request_Handler'                          => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\forms\PrivacySettingsFormHandler' => array(
-                'EE_Registry' => EE_Dependency_Map::load_from_cache,
-                'EE_Config' => EE_Dependency_Map::load_from_cache
-            ),
-        );
-    }
-
-
-    /**
-     * Registers how core classes are loaded.
-     * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
-     *        'EE_Request_Handler' => 'load_core'
-     *        'EE_Messages_Queue'  => 'load_lib'
-     *        'EEH_Debug_Tools'    => 'load_helper'
-     * or, if greater control is required, by providing a custom closure. For example:
-     *        'Some_Class' => function () {
-     *            return new Some_Class();
-     *        },
-     * This is required for instantiating dependencies
-     * where an interface has been type hinted in a class constructor. For example:
-     *        'Required_Interface' => function () {
-     *            return new A_Class_That_Implements_Required_Interface();
-     *        },
-     */
-    protected function _register_core_class_loaders()
-    {
-        // for PHP5.3 compat, we need to register any properties called here in a variable because `$this` cannot
-        // be used in a closure.
-        $request = &$this->request;
-        $response = &$this->response;
-        $legacy_request = &$this->legacy_request;
-        // $loader = &$this->loader;
-        $this->_class_loaders = array(
-            // load_core
-            'EE_Capabilities'                              => 'load_core',
-            'EE_Encryption'                                => 'load_core',
-            'EE_Front_Controller'                          => 'load_core',
-            'EE_Module_Request_Router'                     => 'load_core',
-            'EE_Registry'                                  => 'load_core',
-            'EE_Request'                                   => function () use (&$legacy_request) {
-                return $legacy_request;
-            },
-            'EventEspresso\core\services\request\Request'  => function () use (&$request) {
-                return $request;
-            },
-            'EventEspresso\core\services\request\Response' => function () use (&$response) {
-                return $response;
-            },
-            'EE_Base'                                      => 'load_core',
-            'EE_Request_Handler'                           => 'load_core',
-            'EE_Session'                                   => 'load_core',
-            'EE_Cron_Tasks'                                => 'load_core',
-            'EE_System'                                    => 'load_core',
-            'EE_Maintenance_Mode'                          => 'load_core',
-            'EE_Register_CPTs'                             => 'load_core',
-            'EE_Admin'                                     => 'load_core',
-            'EE_CPT_Strategy'                              => 'load_core',
-            // load_lib
-            'EE_Message_Resource_Manager'                  => 'load_lib',
-            'EE_Message_Type_Collection'                   => 'load_lib',
-            'EE_Message_Type_Collection_Loader'            => 'load_lib',
-            'EE_Messenger_Collection'                      => 'load_lib',
-            'EE_Messenger_Collection_Loader'               => 'load_lib',
-            'EE_Messages_Processor'                        => 'load_lib',
-            'EE_Message_Repository'                        => 'load_lib',
-            'EE_Messages_Queue'                            => 'load_lib',
-            'EE_Messages_Data_Handler_Collection'          => 'load_lib',
-            'EE_Message_Template_Group_Collection'         => 'load_lib',
-            'EE_Payment_Method_Manager'                    => 'load_lib',
-            'EE_Messages_Generator'                        => function () {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Generator',
-                    array(),
-                    false,
-                    false
-                );
-            },
-            'EE_Messages_Template_Defaults'                => function ($arguments = array()) {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Template_Defaults',
-                    $arguments,
-                    false,
-                    false
-                );
-            },
-            // load_helper
-            'EEH_Parse_Shortcodes'                         => function () {
-                if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
-                    return new EEH_Parse_Shortcodes();
-                }
-                return null;
-            },
-            'EE_Template_Config'                           => function () {
-                return EE_Config::instance()->template_settings;
-            },
-            'EE_Currency_Config'                           => function () {
-                return EE_Config::instance()->currency;
-            },
-            'EE_Registration_Config'                       => function () {
-                return EE_Config::instance()->registration;
-            },
-            'EE_Core_Config'                               => function () {
-                return EE_Config::instance()->core;
-            },
-            'EventEspresso\core\services\loaders\Loader'   => function () {
-                return LoaderFactory::getLoader();
-            },
-            'EE_Network_Config'                            => function () {
-                return EE_Network_Config::instance();
-            },
-            'EE_Config'                                    => function () {
-                return EE_Config::instance();
-            },
-            'EventEspresso\core\domain\Domain'             => function () {
-                return DomainFactory::getEventEspressoCoreDomain();
-            },
-            'EE_Admin_Config'                              => function () {
-                return EE_Config::instance()->admin;
-            },
-        );
-    }
-
-
-    /**
-     * can be used for supplying alternate names for classes,
-     * or for connecting interface names to instantiable classes
-     */
-    protected function _register_core_aliases()
-    {
-        $aliases = array(
-            'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
-            'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
-            'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
-            'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
-            'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
-            'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
-            'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
-            'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
-            'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommand',
-            'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommand',
-            'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
-            'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
-            'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommand',
-            'CreateTransactionCommandHandler'                                              => 'EventEspresso\core\services\commands\transaction\CreateTransactionCommandHandler',
-            'CreateAttendeeCommandHandler'                                                 => 'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler',
-            'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
-            'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
-            'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
-            'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
-            'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
-            'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
-            'CommandFactoryInterface'                                                      => 'EventEspresso\core\services\commands\CommandFactoryInterface',
-            'EventEspresso\core\services\commands\CommandFactoryInterface'                 => 'EventEspresso\core\services\commands\CommandFactory',
-            'EventEspresso\core\domain\services\session\SessionIdentifierInterface'        => 'EE_Session',
-            'EmailValidatorInterface'                                                      => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
-            'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface'  => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
-            'NoticeConverterInterface'                                                     => 'EventEspresso\core\services\notices\NoticeConverterInterface',
-            'EventEspresso\core\services\notices\NoticeConverterInterface'                 => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
-            'NoticesContainerInterface'                                                    => 'EventEspresso\core\services\notices\NoticesContainerInterface',
-            'EventEspresso\core\services\notices\NoticesContainerInterface'                => 'EventEspresso\core\services\notices\NoticesContainer',
-            'EventEspresso\core\services\request\RequestInterface'                         => 'EventEspresso\core\services\request\Request',
-            'EventEspresso\core\services\request\ResponseInterface'                        => 'EventEspresso\core\services\request\Response',
-            'EventEspresso\core\domain\DomainInterface'                                    => 'EventEspresso\core\domain\Domain',
-        );
-        foreach ($aliases as $alias => $fqn) {
-            if (is_array($fqn)) {
-                foreach ($fqn as $class => $for_class) {
-                    $this->class_cache->addAlias($class, $alias, $for_class);
-                }
-                continue;
-            }
-            $this->class_cache->addAlias($fqn, $alias);
-        }
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
-            $this->class_cache->addAlias(
-                'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices',
-                'EventEspresso\core\services\notices\NoticeConverterInterface'
-            );
-        }
-    }
-
-
-    /**
-     * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
-     * request Primarily used by unit tests.
-     */
-    public function reset()
-    {
-        $this->_register_core_class_loaders();
-        $this->_register_core_dependencies();
-    }
-
-
-    /**
-     * PLZ NOTE: a better name for this method would be is_alias()
-     * because it returns TRUE if the provided fully qualified name IS an alias
-     * WHY?
-     * Because if a class is type hinting for a concretion,
-     * then why would we need to find another class to supply it?
-     * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
-     * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
-     * Don't go looking for some substitute.
-     * Whereas if a class is type hinting for an interface...
-     * then we need to find an actual class to use.
-     * So the interface IS the alias for some other FQN,
-     * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
-     * represents some other class.
-     *
-     * @deprecated 4.9.62.p
-     * @param string $fqn
-     * @param string $for_class
-     * @return bool
-     */
-    public function has_alias($fqn = '', $for_class = '')
-    {
-        return $this->isAlias($fqn, $for_class);
-    }
-
-
-    /**
-     * PLZ NOTE: a better name for this method would be get_fqn_for_alias()
-     * because it returns a FQN for provided alias if one exists, otherwise returns the original $alias
-     * functions recursively, so that multiple aliases can be used to drill down to a FQN
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @deprecated 4.9.62.p
-     * @param string $alias
-     * @param string $for_class
-     * @return string
-     */
-    public function get_alias($alias = '', $for_class = '')
-    {
-        return $this->getFqnForAlias($alias, $for_class);
-    }
+	/**
+	 * This means that the requested class dependency is not present in the dependency map
+	 */
+	const not_registered = 0;
+
+	/**
+	 * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
+	 */
+	const load_new_object = 1;
+
+	/**
+	 * This instructs class loaders to return a previously instantiated and cached object for the requested class.
+	 * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
+	 */
+	const load_from_cache = 2;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to keep any existing dependencies that already exist,
+	 * and simply discard any new dependencies declared in the incoming data
+	 */
+	const KEEP_EXISTING_DEPENDENCIES = 0;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to overwrite any existing dependencies that already exist using the incoming data
+	 */
+	const OVERWRITE_DEPENDENCIES = 1;
+
+
+	/**
+	 * @type EE_Dependency_Map $_instance
+	 */
+	protected static $_instance;
+
+	/**
+	 * @var ClassInterfaceCache $class_cache
+	 */
+	private $class_cache;
+
+	/**
+	 * @type RequestInterface $request
+	 */
+	protected $request;
+
+	/**
+	 * @type LegacyRequestInterface $legacy_request
+	 */
+	protected $legacy_request;
+
+	/**
+	 * @type ResponseInterface $response
+	 */
+	protected $response;
+
+	/**
+	 * @type LoaderInterface $loader
+	 */
+	protected $loader;
+
+	/**
+	 * @type array $_dependency_map
+	 */
+	protected $_dependency_map = array();
+
+	/**
+	 * @type array $_class_loaders
+	 */
+	protected $_class_loaders = array();
+
+
+	/**
+	 * EE_Dependency_Map constructor.
+	 *
+	 * @param ClassInterfaceCache $class_cache
+	 */
+	protected function __construct(ClassInterfaceCache $class_cache)
+	{
+		$this->class_cache = $class_cache;
+		do_action('EE_Dependency_Map____construct', $this);
+	}
+
+
+	/**
+	 * @return void
+	 */
+	public function initialize()
+	{
+		$this->_register_core_dependencies();
+		$this->_register_core_class_loaders();
+		$this->_register_core_aliases();
+	}
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param ClassInterfaceCache|null $class_cache
+	 * @return EE_Dependency_Map
+	 */
+	public static function instance(ClassInterfaceCache $class_cache = null)
+	{
+		// check if class object is instantiated, and instantiated properly
+		if (! self::$_instance instanceof EE_Dependency_Map
+			&& $class_cache instanceof ClassInterfaceCache
+		) {
+			self::$_instance = new EE_Dependency_Map($class_cache);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * @param RequestInterface $request
+	 */
+	public function setRequest(RequestInterface $request)
+	{
+		$this->request = $request;
+	}
+
+
+	/**
+	 * @param LegacyRequestInterface $legacy_request
+	 */
+	public function setLegacyRequest(LegacyRequestInterface $legacy_request)
+	{
+		$this->legacy_request = $legacy_request;
+	}
+
+
+	/**
+	 * @param ResponseInterface $response
+	 */
+	public function setResponse(ResponseInterface $response)
+	{
+		$this->response = $response;
+	}
+
+
+	/**
+	 * @param LoaderInterface $loader
+	 */
+	public function setLoader(LoaderInterface $loader)
+	{
+		$this->loader = $loader;
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public static function register_dependencies(
+		$class,
+		array $dependencies,
+		$overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	) {
+		return self::$_instance->registerDependencies($class, $dependencies, $overwrite);
+	}
+
+
+	/**
+	 * Assigns an array of class names and corresponding load sources (new or cached)
+	 * to the class specified by the first parameter.
+	 * IMPORTANT !!!
+	 * The order of elements in the incoming $dependencies array MUST match
+	 * the order of the constructor parameters for the class in question.
+	 * This is especially important when overriding any existing dependencies that are registered.
+	 * the third parameter controls whether any duplicate dependencies are overwritten or not.
+	 *
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public function registerDependencies(
+		$class,
+		array $dependencies,
+		$overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	) {
+		$class = trim($class, '\\');
+		$registered = false;
+		if (empty(self::$_instance->_dependency_map[ $class ])) {
+			self::$_instance->_dependency_map[ $class ] = array();
+		}
+		// we need to make sure that any aliases used when registering a dependency
+		// get resolved to the correct class name
+		foreach ($dependencies as $dependency => $load_source) {
+			$alias = self::$_instance->getFqnForAlias($dependency);
+			if ($overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
+				|| ! isset(self::$_instance->_dependency_map[ $class ][ $alias ])
+			) {
+				unset($dependencies[ $dependency ]);
+				$dependencies[ $alias ] = $load_source;
+				$registered = true;
+			}
+		}
+		// now add our two lists of dependencies together.
+		// using Union (+=) favours the arrays in precedence from left to right,
+		// so $dependencies is NOT overwritten because it is listed first
+		// ie: with A = B + C, entries in B take precedence over duplicate entries in C
+		// Union is way faster than array_merge() but should be used with caution...
+		// especially with numerically indexed arrays
+		$dependencies += self::$_instance->_dependency_map[ $class ];
+		// now we need to ensure that the resulting dependencies
+		// array only has the entries that are required for the class
+		// so first count how many dependencies were originally registered for the class
+		$dependency_count = count(self::$_instance->_dependency_map[ $class ]);
+		// if that count is non-zero (meaning dependencies were already registered)
+		self::$_instance->_dependency_map[ $class ] = $dependency_count
+			// then truncate the  final array to match that count
+			? array_slice($dependencies, 0, $dependency_count)
+			// otherwise just take the incoming array because nothing previously existed
+			: $dependencies;
+		return $registered;
+	}
+
+
+	/**
+	 * @param string $class_name
+	 * @param string $loader
+	 * @return bool
+	 * @throws DomainException
+	 */
+	public static function register_class_loader($class_name, $loader = 'load_core')
+	{
+		if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
+			throw new DomainException(
+				esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
+			);
+		}
+		// check that loader is callable or method starts with "load_" and exists in EE_Registry
+		if (! is_callable($loader)
+			&& (
+				strpos($loader, 'load_') !== 0
+				|| ! method_exists('EE_Registry', $loader)
+			)
+		) {
+			throw new DomainException(
+				sprintf(
+					esc_html__(
+						'"%1$s" is not a valid loader method on EE_Registry.',
+						'event_espresso'
+					),
+					$loader
+				)
+			);
+		}
+		$class_name = self::$_instance->getFqnForAlias($class_name);
+		if (! isset(self::$_instance->_class_loaders[ $class_name ])) {
+			self::$_instance->_class_loaders[ $class_name ] = $loader;
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function dependency_map()
+	{
+		return $this->_dependency_map;
+	}
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name
+	 *
+	 * @param string $class_name
+	 * @return boolean
+	 */
+	public function has($class_name = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		return isset($this->_dependency_map[ $class_name ]) ? true : false;
+	}
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name AND dependency
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return bool
+	 */
+	public function has_dependency_for_class($class_name = '', $dependency = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->getFqnForAlias($dependency, $class_name);
+		return isset($this->_dependency_map[ $class_name ][ $dependency ])
+			? true
+			: false;
+	}
+
+
+	/**
+	 * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return int
+	 */
+	public function loading_strategy_for_class_dependency($class_name = '', $dependency = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->getFqnForAlias($dependency);
+		return $this->has_dependency_for_class($class_name, $dependency)
+			? $this->_dependency_map[ $class_name ][ $dependency ]
+			: EE_Dependency_Map::not_registered;
+	}
+
+
+	/**
+	 * @param string $class_name
+	 * @return string | Closure
+	 */
+	public function class_loader($class_name)
+	{
+		// all legacy models use load_model()
+		if (strpos($class_name, 'EEM_') === 0) {
+			return 'load_model';
+		}
+		// EE_CPT_*_Strategy classes like EE_CPT_Event_Strategy, EE_CPT_Venue_Strategy, etc
+		// perform strpos() first to avoid loading regex every time we load a class
+		if (strpos($class_name, 'EE_CPT_') === 0
+			&& preg_match('/^EE_CPT_([a-zA-Z]+)_Strategy$/', $class_name)
+		) {
+			return 'load_core';
+		}
+		$class_name = $this->getFqnForAlias($class_name);
+		return isset($this->_class_loaders[ $class_name ]) ? $this->_class_loaders[ $class_name ] : '';
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function class_loaders()
+	{
+		return $this->_class_loaders;
+	}
+
+
+	/**
+	 * adds an alias for a classname
+	 *
+	 * @param string $fqcn      the class name that should be used (concrete class to replace interface)
+	 * @param string $alias     the class name that would be type hinted for (abstract parent or interface)
+	 * @param string $for_class the class that has the dependency (is type hinting for the interface)
+	 */
+	public function add_alias($fqcn, $alias, $for_class = '')
+	{
+		$this->class_cache->addAlias($fqcn, $alias, $for_class);
+	}
+
+
+	/**
+	 * Returns TRUE if the provided fully qualified name IS an alias
+	 * WHY?
+	 * Because if a class is type hinting for a concretion,
+	 * then why would we need to find another class to supply it?
+	 * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
+	 * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
+	 * Don't go looking for some substitute.
+	 * Whereas if a class is type hinting for an interface...
+	 * then we need to find an actual class to use.
+	 * So the interface IS the alias for some other FQN,
+	 * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
+	 * represents some other class.
+	 *
+	 * @param string $fqn
+	 * @param string $for_class
+	 * @return bool
+	 */
+	public function isAlias($fqn = '', $for_class = '')
+	{
+		return $this->class_cache->isAlias($fqn, $for_class);
+	}
+
+
+	/**
+	 * Returns a FQN for provided alias if one exists, otherwise returns the original $alias
+	 * functions recursively, so that multiple aliases can be used to drill down to a FQN
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @param string $alias
+	 * @param string $for_class
+	 * @return string
+	 */
+	public function getFqnForAlias($alias = '', $for_class = '')
+	{
+		return (string) $this->class_cache->getFqnForAlias($alias, $for_class);
+	}
+
+
+	/**
+	 * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
+	 * if one exists, or whether a new object should be generated every time the requested class is loaded.
+	 * This is done by using the following class constants:
+	 *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
+	 *        EE_Dependency_Map::load_new_object - generates a new object every time
+	 */
+	protected function _register_core_dependencies()
+	{
+		$this->_dependency_map = array(
+			'EE_Request_Handler'                                                                                          => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_System'                                                                                                   => array(
+				'EE_Registry'                                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EE_Maintenance_Mode'                         => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Session'                                                                                                  => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
+				'EE_Encryption'                                            => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Cart'                                                                                                     => array(
+				'EE_Session' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Front_Controller'                                                                                         => array(
+				'EE_Registry'              => EE_Dependency_Map::load_from_cache,
+				'EE_Request_Handler'       => EE_Dependency_Map::load_from_cache,
+				'EE_Module_Request_Router' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messenger_Collection_Loader'                                                                              => array(
+				'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Message_Type_Collection_Loader'                                                                           => array(
+				'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Message_Resource_Manager'                                                                                 => array(
+				'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
+				'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
+				'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Message_Factory'                                                                                          => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_messages'                                                                                                 => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Generator'                                                                                       => array(
+				'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
+				'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
+				'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
+				'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Processor'                                                                                       => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Queue'                                                                                           => array(
+				'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Messages_Template_Defaults'                                                                               => array(
+				'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
+				'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Message_To_Generate_From_Request'                                                                         => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+				'EE_Request_Handler'          => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandBus'                                                             => array(
+				'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\services\commands\CommandHandler'                                                              => array(
+				'EE_Registry'         => EE_Dependency_Map::load_from_cache,
+				'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandHandlerManager'                                                  => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CompositeCommandHandler'                                                => array(
+				'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandFactory'                                                         => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\middleware\CapChecker'                                                  => array(
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                         => array(
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                     => array(
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CreateRegistrationCommandHandler'                          => array(
+				'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => array(
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => array(
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => array(
+				'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => array(
+				'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => array(
+				'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => array(
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                   => array(
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler'                                  => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\database\TableManager'                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Data_Migration_Class_Base'                                                                                => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_1_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_2_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_3_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_4_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_5_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_6_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_7_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_8_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_9_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\assets\I18nRegistry'                                                             => array(
+				array(),
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\assets\Registry'                                                                 => array(
+				'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\I18nRegistry'    => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                             => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                              => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                        => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                              => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                        => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                               => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\cache\BasicCacheManager'                                                         => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\cache\PostRelatedCacheManager'                                                   => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\validation\email\EmailValidationService'                                  => array(
+				'EE_Registration_Config'                     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\values\EmailAddress'                                                               => array(
+				null,
+				'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\orm\ModelFieldFactory'                                                           => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'LEGACY_MODELS'                                                                                               => array(
+				null,
+				'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Module_Request_Router'                                                                                    => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Registration_Processor'                                                                                   => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'                                      => array(
+				null,
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+				'EE_Request'                                                          => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\licensing\LicenseService'                                                        => array(
+				'EventEspresso\core\domain\services\pue\Stats'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\pue\Config' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Admin_Transactions_List_Table'                                                                            => array(
+				null,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\pue\Stats'                                                                => array(
+				'EventEspresso\core\domain\services\pue\Config'        => EE_Dependency_Map::load_from_cache,
+				'EE_Maintenance_Mode'                                  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\pue\StatsGatherer' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\pue\Config'                                                               => array(
+				'EE_Network_Config' => EE_Dependency_Map::load_from_cache,
+				'EE_Config'         => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\pue\StatsGatherer'                                                        => array(
+				'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
+				'EEM_Event'          => EE_Dependency_Map::load_from_cache,
+				'EEM_Datetime'       => EE_Dependency_Map::load_from_cache,
+				'EEM_Ticket'         => EE_Dependency_Map::load_from_cache,
+				'EEM_Registration'   => EE_Dependency_Map::load_from_cache,
+				'EEM_Transaction'    => EE_Dependency_Map::load_from_cache,
+				'EE_Config'          => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\ExitModal'                                                          => array(
+				'EventEspresso\core\services\assets\Registry' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\PluginUpsells'                                                      => array(
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\caffeinated\modules\recaptcha_invisible\InvisibleRecaptcha'                                    => array(
+				'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
+				'EE_Session'             => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\caffeinated\modules\recaptcha_invisible\RecaptchaAdminSettings'                                => array(
+				'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\modules\ticket_selector\ProcessTicketSelector'                                                 => array(
+				'EE_Core_Config'                                                          => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                             => EE_Dependency_Map::load_from_cache,
+				'EE_Session'                                                              => EE_Dependency_Map::load_from_cache,
+				'EEM_Ticket'                                                              => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker'                                     => array(
+				'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'                              => array(
+				'EE_Core_Config'                             => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'                                => array(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'                               => array(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_CPT_Strategy'                                                                                             => array(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\loaders\ObjectIdentifier'                                                        => array(
+				'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\assets\CoreAssetManager'                                                  => array(
+				'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
+				'EE_Currency_Config'                                 => EE_Dependency_Map::load_from_cache,
+				'EE_Template_Config'                                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\Domain'                   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\Registry'        => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\policy\PrivacyPolicy' => array(
+				'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendee' => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendeeBillingData' => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+				'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportCheckins' => array(
+				'EEM_Checkin' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportRegistration' => array(
+				'EEM_Registration' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportTransaction' => array(
+				'EEM_Transaction' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAttendeeData' => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAnswers' => array(
+				'EEM_Answer' => EE_Dependency_Map::load_from_cache,
+				'EEM_Question' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\CPTs\CptQueryModifier' => array(
+				null,
+				null,
+				null,
+				'EE_Request_Handler'                          => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\forms\PrivacySettingsFormHandler' => array(
+				'EE_Registry' => EE_Dependency_Map::load_from_cache,
+				'EE_Config' => EE_Dependency_Map::load_from_cache
+			),
+		);
+	}
+
+
+	/**
+	 * Registers how core classes are loaded.
+	 * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
+	 *        'EE_Request_Handler' => 'load_core'
+	 *        'EE_Messages_Queue'  => 'load_lib'
+	 *        'EEH_Debug_Tools'    => 'load_helper'
+	 * or, if greater control is required, by providing a custom closure. For example:
+	 *        'Some_Class' => function () {
+	 *            return new Some_Class();
+	 *        },
+	 * This is required for instantiating dependencies
+	 * where an interface has been type hinted in a class constructor. For example:
+	 *        'Required_Interface' => function () {
+	 *            return new A_Class_That_Implements_Required_Interface();
+	 *        },
+	 */
+	protected function _register_core_class_loaders()
+	{
+		// for PHP5.3 compat, we need to register any properties called here in a variable because `$this` cannot
+		// be used in a closure.
+		$request = &$this->request;
+		$response = &$this->response;
+		$legacy_request = &$this->legacy_request;
+		// $loader = &$this->loader;
+		$this->_class_loaders = array(
+			// load_core
+			'EE_Capabilities'                              => 'load_core',
+			'EE_Encryption'                                => 'load_core',
+			'EE_Front_Controller'                          => 'load_core',
+			'EE_Module_Request_Router'                     => 'load_core',
+			'EE_Registry'                                  => 'load_core',
+			'EE_Request'                                   => function () use (&$legacy_request) {
+				return $legacy_request;
+			},
+			'EventEspresso\core\services\request\Request'  => function () use (&$request) {
+				return $request;
+			},
+			'EventEspresso\core\services\request\Response' => function () use (&$response) {
+				return $response;
+			},
+			'EE_Base'                                      => 'load_core',
+			'EE_Request_Handler'                           => 'load_core',
+			'EE_Session'                                   => 'load_core',
+			'EE_Cron_Tasks'                                => 'load_core',
+			'EE_System'                                    => 'load_core',
+			'EE_Maintenance_Mode'                          => 'load_core',
+			'EE_Register_CPTs'                             => 'load_core',
+			'EE_Admin'                                     => 'load_core',
+			'EE_CPT_Strategy'                              => 'load_core',
+			// load_lib
+			'EE_Message_Resource_Manager'                  => 'load_lib',
+			'EE_Message_Type_Collection'                   => 'load_lib',
+			'EE_Message_Type_Collection_Loader'            => 'load_lib',
+			'EE_Messenger_Collection'                      => 'load_lib',
+			'EE_Messenger_Collection_Loader'               => 'load_lib',
+			'EE_Messages_Processor'                        => 'load_lib',
+			'EE_Message_Repository'                        => 'load_lib',
+			'EE_Messages_Queue'                            => 'load_lib',
+			'EE_Messages_Data_Handler_Collection'          => 'load_lib',
+			'EE_Message_Template_Group_Collection'         => 'load_lib',
+			'EE_Payment_Method_Manager'                    => 'load_lib',
+			'EE_Messages_Generator'                        => function () {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Generator',
+					array(),
+					false,
+					false
+				);
+			},
+			'EE_Messages_Template_Defaults'                => function ($arguments = array()) {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Template_Defaults',
+					$arguments,
+					false,
+					false
+				);
+			},
+			// load_helper
+			'EEH_Parse_Shortcodes'                         => function () {
+				if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
+					return new EEH_Parse_Shortcodes();
+				}
+				return null;
+			},
+			'EE_Template_Config'                           => function () {
+				return EE_Config::instance()->template_settings;
+			},
+			'EE_Currency_Config'                           => function () {
+				return EE_Config::instance()->currency;
+			},
+			'EE_Registration_Config'                       => function () {
+				return EE_Config::instance()->registration;
+			},
+			'EE_Core_Config'                               => function () {
+				return EE_Config::instance()->core;
+			},
+			'EventEspresso\core\services\loaders\Loader'   => function () {
+				return LoaderFactory::getLoader();
+			},
+			'EE_Network_Config'                            => function () {
+				return EE_Network_Config::instance();
+			},
+			'EE_Config'                                    => function () {
+				return EE_Config::instance();
+			},
+			'EventEspresso\core\domain\Domain'             => function () {
+				return DomainFactory::getEventEspressoCoreDomain();
+			},
+			'EE_Admin_Config'                              => function () {
+				return EE_Config::instance()->admin;
+			},
+		);
+	}
+
+
+	/**
+	 * can be used for supplying alternate names for classes,
+	 * or for connecting interface names to instantiable classes
+	 */
+	protected function _register_core_aliases()
+	{
+		$aliases = array(
+			'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
+			'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
+			'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
+			'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
+			'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
+			'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
+			'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
+			'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
+			'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommand',
+			'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommand',
+			'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
+			'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
+			'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommand',
+			'CreateTransactionCommandHandler'                                              => 'EventEspresso\core\services\commands\transaction\CreateTransactionCommandHandler',
+			'CreateAttendeeCommandHandler'                                                 => 'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler',
+			'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
+			'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
+			'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
+			'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
+			'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
+			'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
+			'CommandFactoryInterface'                                                      => 'EventEspresso\core\services\commands\CommandFactoryInterface',
+			'EventEspresso\core\services\commands\CommandFactoryInterface'                 => 'EventEspresso\core\services\commands\CommandFactory',
+			'EventEspresso\core\domain\services\session\SessionIdentifierInterface'        => 'EE_Session',
+			'EmailValidatorInterface'                                                      => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
+			'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface'  => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
+			'NoticeConverterInterface'                                                     => 'EventEspresso\core\services\notices\NoticeConverterInterface',
+			'EventEspresso\core\services\notices\NoticeConverterInterface'                 => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
+			'NoticesContainerInterface'                                                    => 'EventEspresso\core\services\notices\NoticesContainerInterface',
+			'EventEspresso\core\services\notices\NoticesContainerInterface'                => 'EventEspresso\core\services\notices\NoticesContainer',
+			'EventEspresso\core\services\request\RequestInterface'                         => 'EventEspresso\core\services\request\Request',
+			'EventEspresso\core\services\request\ResponseInterface'                        => 'EventEspresso\core\services\request\Response',
+			'EventEspresso\core\domain\DomainInterface'                                    => 'EventEspresso\core\domain\Domain',
+		);
+		foreach ($aliases as $alias => $fqn) {
+			if (is_array($fqn)) {
+				foreach ($fqn as $class => $for_class) {
+					$this->class_cache->addAlias($class, $alias, $for_class);
+				}
+				continue;
+			}
+			$this->class_cache->addAlias($fqn, $alias);
+		}
+		if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
+			$this->class_cache->addAlias(
+				'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices',
+				'EventEspresso\core\services\notices\NoticeConverterInterface'
+			);
+		}
+	}
+
+
+	/**
+	 * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
+	 * request Primarily used by unit tests.
+	 */
+	public function reset()
+	{
+		$this->_register_core_class_loaders();
+		$this->_register_core_dependencies();
+	}
+
+
+	/**
+	 * PLZ NOTE: a better name for this method would be is_alias()
+	 * because it returns TRUE if the provided fully qualified name IS an alias
+	 * WHY?
+	 * Because if a class is type hinting for a concretion,
+	 * then why would we need to find another class to supply it?
+	 * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
+	 * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
+	 * Don't go looking for some substitute.
+	 * Whereas if a class is type hinting for an interface...
+	 * then we need to find an actual class to use.
+	 * So the interface IS the alias for some other FQN,
+	 * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
+	 * represents some other class.
+	 *
+	 * @deprecated 4.9.62.p
+	 * @param string $fqn
+	 * @param string $for_class
+	 * @return bool
+	 */
+	public function has_alias($fqn = '', $for_class = '')
+	{
+		return $this->isAlias($fqn, $for_class);
+	}
+
+
+	/**
+	 * PLZ NOTE: a better name for this method would be get_fqn_for_alias()
+	 * because it returns a FQN for provided alias if one exists, otherwise returns the original $alias
+	 * functions recursively, so that multiple aliases can be used to drill down to a FQN
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @deprecated 4.9.62.p
+	 * @param string $alias
+	 * @param string $for_class
+	 * @return string
+	 */
+	public function get_alias($alias = '', $for_class = '')
+	{
+		return $this->getFqnForAlias($alias, $for_class);
+	}
 }

core/EE_System.core.php

Indentation +1261 added lines, -1261 removed lines

@@ -27,1265 +27,1265 @@
 final class EE_System implements ResettableInterface
 {
 
-    /**
-     * indicates this is a 'normal' request. Ie, not activation, nor upgrade, nor activation.
-     * So examples of this would be a normal GET request on the frontend or backend, or a POST, etc
-     */
-    const req_type_normal = 0;
-
-    /**
-     * Indicates this is a brand new installation of EE so we should install
-     * tables and default data etc
-     */
-    const req_type_new_activation = 1;
-
-    /**
-     * we've detected that EE has been reactivated (or EE was activated during maintenance mode,
-     * and we just exited maintenance mode). We MUST check the database is setup properly
-     * and that default data is setup too
-     */
-    const req_type_reactivation = 2;
-
-    /**
-     * indicates that EE has been upgraded since its previous request.
-     * We may have data migration scripts to call and will want to trigger maintenance mode
-     */
-    const req_type_upgrade = 3;
-
-    /**
-     * TODO  will detect that EE has been DOWNGRADED. We probably don't want to run in this case...
-     */
-    const req_type_downgrade = 4;
-
-    /**
-     * @deprecated since version 4.6.0.dev.006
-     * Now whenever a new_activation is detected the request type is still just
-     * new_activation (same for reactivation, upgrade, downgrade etc), but if we'r ein maintenance mode
-     * EE_System::initialize_db_if_no_migrations_required and EE_Addon::initialize_db_if_no_migrations_required
-     * will instead enqueue that EE plugin's db initialization for when we're taken out of maintenance mode.
-     * (Specifically, when the migration manager indicates migrations are finished
-     * EE_Data_Migration_Manager::initialize_db_for_enqueued_ee_plugins() will be called)
-     */
-    const req_type_activation_but_not_installed = 5;
-
-    /**
-     * option prefix for recording the activation history (like core's "espresso_db_update") of addons
-     */
-    const addon_activation_history_option_prefix = 'ee_addon_activation_history_';
-
-    /**
-     * @var EE_System $_instance
-     */
-    private static $_instance;
-
-    /**
-     * @var EE_Registry $registry
-     */
-    private $registry;
-
-    /**
-     * @var LoaderInterface $loader
-     */
-    private $loader;
-
-    /**
-     * @var EE_Capabilities $capabilities
-     */
-    private $capabilities;
-
-    /**
-     * @var RequestInterface $request
-     */
-    private $request;
-
-    /**
-     * @var EE_Maintenance_Mode $maintenance_mode
-     */
-    private $maintenance_mode;
-
-    /**
-     * Stores which type of request this is, options being one of the constants on EE_System starting with req_type_*.
-     * It can be a brand-new activation, a reactivation, an upgrade, a downgrade, or a normal request.
-     *
-     * @var int $_req_type
-     */
-    private $_req_type;
-
-    /**
-     * Whether or not there was a non-micro version change in EE core version during this request
-     *
-     * @var boolean $_major_version_change
-     */
-    private $_major_version_change = false;
-
-    /**
-     * A Context DTO dedicated solely to identifying the current request type.
-     *
-     * @var RequestTypeContextCheckerInterface $request_type
-     */
-    private $request_type;
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param EE_Registry|null         $registry
-     * @param LoaderInterface|null     $loader
-     * @param RequestInterface|null    $request
-     * @param EE_Maintenance_Mode|null $maintenance_mode
-     * @return EE_System
-     */
-    public static function instance(
-        EE_Registry $registry = null,
-        LoaderInterface $loader = null,
-        RequestInterface $request = null,
-        EE_Maintenance_Mode $maintenance_mode = null
-    ) {
-        // check if class object is instantiated
-        if (! self::$_instance instanceof EE_System) {
-            self::$_instance = new self($registry, $loader, $request, $maintenance_mode);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * resets the instance and returns it
-     *
-     * @return EE_System
-     */
-    public static function reset()
-    {
-        self::$_instance->_req_type = null;
-        // make sure none of the old hooks are left hanging around
-        remove_all_actions('AHEE__EE_System__perform_activations_upgrades_and_migrations');
-        // we need to reset the migration manager in order for it to detect DMSs properly
-        EE_Data_Migration_Manager::reset();
-        self::instance()->detect_activations_or_upgrades();
-        self::instance()->perform_activations_upgrades_and_migrations();
-        return self::instance();
-    }
-
-
-    /**
-     * sets hooks for running rest of system
-     * provides "AHEE__EE_System__construct__complete" hook for EE Addons to use as their starting point
-     * starting EE Addons from any other point may lead to problems
-     *
-     * @param EE_Registry         $registry
-     * @param LoaderInterface     $loader
-     * @param RequestInterface    $request
-     * @param EE_Maintenance_Mode $maintenance_mode
-     */
-    private function __construct(
-        EE_Registry $registry,
-        LoaderInterface $loader,
-        RequestInterface $request,
-        EE_Maintenance_Mode $maintenance_mode
-    ) {
-        $this->registry = $registry;
-        $this->loader = $loader;
-        $this->request = $request;
-        $this->maintenance_mode = $maintenance_mode;
-        do_action('AHEE__EE_System__construct__begin', $this);
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'loadCapabilities'),
-            5
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'loadCommandBus'),
-            7
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'loadPluginApi'),
-            9
-        );
-        // allow addons to load first so that they can register autoloaders, set hooks for running DMS's, etc
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'load_espresso_addons')
-        );
-        // when an ee addon is activated, we want to call the core hook(s) again
-        // because the newly-activated addon didn't get a chance to run at all
-        add_action('activate_plugin', array($this, 'load_espresso_addons'), 1);
-        // detect whether install or upgrade
-        add_action(
-            'AHEE__EE_Bootstrap__detect_activations_or_upgrades',
-            array($this, 'detect_activations_or_upgrades'),
-            3
-        );
-        // load EE_Config, EE_Textdomain, etc
-        add_action(
-            'AHEE__EE_Bootstrap__load_core_configuration',
-            array($this, 'load_core_configuration'),
-            5
-        );
-        // load EE_Config, EE_Textdomain, etc
-        add_action(
-            'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets',
-            array($this, 'register_shortcodes_modules_and_widgets'),
-            7
-        );
-        // you wanna get going? I wanna get going... let's get going!
-        add_action(
-            'AHEE__EE_Bootstrap__brew_espresso',
-            array($this, 'brew_espresso'),
-            9
-        );
-        // other housekeeping
-        // exclude EE critical pages from wp_list_pages
-        add_filter(
-            'wp_list_pages_excludes',
-            array($this, 'remove_pages_from_wp_list_pages'),
-            10
-        );
-        // ALL EE Addons should use the following hook point to attach their initial setup too
-        // it's extremely important for EE Addons to register any class autoloaders so that they can be available when the EE_Config loads
-        do_action('AHEE__EE_System__construct__complete', $this);
-    }
-
-
-    /**
-     * load and setup EE_Capabilities
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function loadCapabilities()
-    {
-        $this->capabilities = $this->loader->getShared('EE_Capabilities');
-        add_action(
-            'AHEE__EE_Capabilities__init_caps__before_initialization',
-            function () {
-                LoaderFactory::getLoader()->getShared('EE_Payment_Method_Manager');
-            }
-        );
-    }
-
-
-    /**
-     * create and cache the CommandBus, and also add middleware
-     * The CapChecker middleware requires the use of EE_Capabilities
-     * which is why we need to load the CommandBus after Caps are set up
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function loadCommandBus()
-    {
-        $this->loader->getShared(
-            'CommandBusInterface',
-            array(
-                null,
-                apply_filters(
-                    'FHEE__EE_Load_Espresso_Core__handle_request__CommandBus_middleware',
-                    array(
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\CapChecker'),
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\AddActionHook'),
-                    )
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     */
-    public function loadPluginApi()
-    {
-        // set autoloaders for all of the classes implementing EEI_Plugin_API
-        // which provide helpers for EE plugin authors to more easily register certain components with EE.
-        EEH_Autoloader::instance()->register_autoloaders_for_each_file_in_folder(EE_LIBRARIES . 'plugin_api');
-        $this->loader->getShared('EE_Request_Handler');
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @param string $version_constant
-     * @param string $min_version_required
-     * @param string $load_callback
-     * @param string $plugin_file_constant
-     * @return void
-     */
-    private function deactivateIncompatibleAddon(
-        $addon_name,
-        $version_constant,
-        $min_version_required,
-        $load_callback,
-        $plugin_file_constant
-    ) {
-        if (! defined($version_constant)) {
-            return;
-        }
-        $addon_version = constant($version_constant);
-        if ($addon_version && version_compare($addon_version, $min_version_required, '<')) {
-            remove_action('AHEE__EE_System__load_espresso_addons', $load_callback);
-            if (! function_exists('deactivate_plugins')) {
-                require_once ABSPATH . 'wp-admin/includes/plugin.php';
-            }
-            deactivate_plugins(plugin_basename(constant($plugin_file_constant)));
-            unset($_GET['activate'], $_REQUEST['activate'], $_GET['activate-multi'], $_REQUEST['activate-multi']);
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'We\'re sorry, but the Event Espresso %1$s addon was deactivated because version %2$s or higher is required with this version of Event Espresso core.',
-                        'event_espresso'
-                    ),
-                    $addon_name,
-                    $min_version_required
-                ),
-                __FILE__,
-                __FUNCTION__ . "({$addon_name})",
-                __LINE__
-            );
-            EE_Error::get_notices(false, true);
-        }
-    }
-
-
-    /**
-     * load_espresso_addons
-     * allow addons to load first so that they can set hooks for running DMS's, etc
-     * this is hooked into both:
-     *    'AHEE__EE_Bootstrap__load_core_configuration'
-     *        which runs during the WP 'plugins_loaded' action at priority 5
-     *    and the WP 'activate_plugin' hook point
-     *
-     * @access public
-     * @return void
-     */
-    public function load_espresso_addons()
-    {
-        $this->deactivateIncompatibleAddon(
-            'Wait Lists',
-            'EE_WAIT_LISTS_VERSION',
-            '1.0.0.beta.074',
-            'load_espresso_wait_lists',
-            'EE_WAIT_LISTS_PLUGIN_FILE'
-        );
-        $this->deactivateIncompatibleAddon(
-            'Automated Upcoming Event Notifications',
-            'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_VERSION',
-            '1.0.0.beta.091',
-            'load_espresso_automated_upcoming_event_notification',
-            'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_PLUGIN_FILE'
-        );
-        do_action('AHEE__EE_System__load_espresso_addons');
-        // if the WP API basic auth plugin isn't already loaded, load it now.
-        // We want it for mobile apps. Just include the entire plugin
-        // also, don't load the basic auth when a plugin is getting activated, because
-        // it could be the basic auth plugin, and it doesn't check if its methods are already defined
-        // and causes a fatal error
-        if ($this->request->getRequestParam('activate') !== 'true'
-            && ! function_exists('json_basic_auth_handler')
-            && ! function_exists('json_basic_auth_error')
-            && ! in_array(
-                $this->request->getRequestParam('action'),
-                array('activate', 'activate-selected'),
-                true
-            )
-        ) {
-            include_once EE_THIRD_PARTY . 'wp-api-basic-auth' . DS . 'basic-auth.php';
-        }
-        do_action('AHEE__EE_System__load_espresso_addons__complete');
-    }
-
-
-    /**
-     * detect_activations_or_upgrades
-     * Checks for activation or upgrade of core first;
-     * then also checks if any registered addons have been activated or upgraded
-     * This is hooked into 'AHEE__EE_Bootstrap__detect_activations_or_upgrades'
-     * which runs during the WP 'plugins_loaded' action at priority 3
-     *
-     * @access public
-     * @return void
-     */
-    public function detect_activations_or_upgrades()
-    {
-        // first off: let's make sure to handle core
-        $this->detect_if_activation_or_upgrade();
-        foreach ($this->registry->addons as $addon) {
-            if ($addon instanceof EE_Addon) {
-                // detect teh request type for that addon
-                $addon->detect_activation_or_upgrade();
-            }
-        }
-    }
-
-
-    /**
-     * detect_if_activation_or_upgrade
-     * Takes care of detecting whether this is a brand new install or code upgrade,
-     * and either setting up the DB or setting up maintenance mode etc.
-     *
-     * @access public
-     * @return void
-     */
-    public function detect_if_activation_or_upgrade()
-    {
-        do_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin');
-        // check if db has been updated, or if its a brand-new installation
-        $espresso_db_update = $this->fix_espresso_db_upgrade_option();
-        $request_type = $this->detect_req_type($espresso_db_update);
-        // EEH_Debug_Tools::printr( $request_type, '$request_type', __FILE__, __LINE__ );
-        switch ($request_type) {
-            case EE_System::req_type_new_activation:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__new_activation');
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_reactivation:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__reactivation');
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_upgrade:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__upgrade');
-                // migrations may be required now that we've upgraded
-                $this->maintenance_mode->set_maintenance_mode_if_db_old();
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_downgrade:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__downgrade');
-                // its possible migrations are no longer required
-                $this->maintenance_mode->set_maintenance_mode_if_db_old();
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_normal:
-            default:
-                break;
-        }
-        do_action('AHEE__EE_System__detect_if_activation_or_upgrade__complete');
-    }
-
-
-    /**
-     * Updates the list of installed versions and sets hooks for
-     * initializing the database later during the request
-     *
-     * @param array $espresso_db_update
-     */
-    private function _handle_core_version_change($espresso_db_update)
-    {
-        $this->update_list_of_installed_versions($espresso_db_update);
-        // get ready to verify the DB is ok (provided we aren't in maintenance mode, of course)
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            array($this, 'initialize_db_if_no_migrations_required')
-        );
-    }
-
-
-    /**
-     * standardizes the wp option 'espresso_db_upgrade' which actually stores
-     * information about what versions of EE have been installed and activated,
-     * NOT necessarily the state of the database
-     *
-     * @param mixed $espresso_db_update           the value of the WordPress option.
-     *                                            If not supplied, fetches it from the options table
-     * @return array the correct value of 'espresso_db_upgrade', after saving it, if it needed correction
-     */
-    private function fix_espresso_db_upgrade_option($espresso_db_update = null)
-    {
-        do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
-        if (! $espresso_db_update) {
-            $espresso_db_update = get_option('espresso_db_update');
-        }
-        // check that option is an array
-        if (! is_array($espresso_db_update)) {
-            // if option is FALSE, then it never existed
-            if ($espresso_db_update === false) {
-                // make $espresso_db_update an array and save option with autoload OFF
-                $espresso_db_update = array();
-                add_option('espresso_db_update', $espresso_db_update, '', 'no');
-            } else {
-                // option is NOT FALSE but also is NOT an array, so make it an array and save it
-                $espresso_db_update = array($espresso_db_update => array());
-                update_option('espresso_db_update', $espresso_db_update);
-            }
-        } else {
-            $corrected_db_update = array();
-            // if IS an array, but is it an array where KEYS are version numbers, and values are arrays?
-            foreach ($espresso_db_update as $should_be_version_string => $should_be_array) {
-                if (is_int($should_be_version_string) && ! is_array($should_be_array)) {
-                    // the key is an int, and the value IS NOT an array
-                    // so it must be numerically-indexed, where values are versions installed...
-                    // fix it!
-                    $version_string = $should_be_array;
-                    $corrected_db_update[ $version_string ] = array('unknown-date');
-                } else {
-                    // ok it checks out
-                    $corrected_db_update[ $should_be_version_string ] = $should_be_array;
-                }
-            }
-            $espresso_db_update = $corrected_db_update;
-            update_option('espresso_db_update', $espresso_db_update);
-        }
-        do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__complete', $espresso_db_update);
-        return $espresso_db_update;
-    }
-
-
-    /**
-     * Does the traditional work of setting up the plugin's database and adding default data.
-     * If migration script/process did not exist, this is what would happen on every activation/reactivation/upgrade.
-     * NOTE: if we're in maintenance mode (which would be the case if we detect there are data
-     * migration scripts that need to be run and a version change happens), enqueues core for database initialization,
-     * so that it will be done when migrations are finished
-     *
-     * @param boolean $initialize_addons_too if true, we double-check addons' database tables etc too;
-     * @param boolean $verify_schema         if true will re-check the database tables have the correct schema.
-     *                                       This is a resource-intensive job
-     *                                       so we prefer to only do it when necessary
-     * @return void
-     * @throws EE_Error
-     */
-    public function initialize_db_if_no_migrations_required($initialize_addons_too = false, $verify_schema = true)
-    {
-        $request_type = $this->detect_req_type();
-        // only initialize system if we're not in maintenance mode.
-        if ($this->maintenance_mode->level() !== EE_Maintenance_Mode::level_2_complete_maintenance) {
-            /** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
-            $rewrite_rules = $this->loader->getShared(
-                'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
-            );
-            $rewrite_rules->flush();
-            if ($verify_schema) {
-                EEH_Activation::initialize_db_and_folders();
-            }
-            EEH_Activation::initialize_db_content();
-            EEH_Activation::system_initialization();
-            if ($initialize_addons_too) {
-                $this->initialize_addons();
-            }
-        } else {
-            EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for('Core');
-        }
-        if ($request_type === EE_System::req_type_new_activation
-            || $request_type === EE_System::req_type_reactivation
-            || (
-                $request_type === EE_System::req_type_upgrade
-                && $this->is_major_version_change()
-            )
-        ) {
-            add_action('AHEE__EE_System__initialize_last', array($this, 'redirect_to_about_ee'), 9);
-        }
-    }
-
-
-    /**
-     * Initializes the db for all registered addons
-     *
-     * @throws EE_Error
-     */
-    public function initialize_addons()
-    {
-        // foreach registered addon, make sure its db is up-to-date too
-        foreach ($this->registry->addons as $addon) {
-            if ($addon instanceof EE_Addon) {
-                $addon->initialize_db_if_no_migrations_required();
-            }
-        }
-    }
-
-
-    /**
-     * Adds the current code version to the saved wp option which stores a list of all ee versions ever installed.
-     *
-     * @param    array  $version_history
-     * @param    string $current_version_to_add version to be added to the version history
-     * @return    boolean success as to whether or not this option was changed
-     */
-    public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null)
-    {
-        if (! $version_history) {
-            $version_history = $this->fix_espresso_db_upgrade_option($version_history);
-        }
-        if ($current_version_to_add === null) {
-            $current_version_to_add = espresso_version();
-        }
-        $version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
-        // re-save
-        return update_option('espresso_db_update', $version_history);
-    }
-
-
-    /**
-     * Detects if the current version indicated in the has existed in the list of
-     * previously-installed versions of EE (espresso_db_update). Does NOT modify it (ie, no side-effect)
-     *
-     * @param array $espresso_db_update array from the wp option stored under the name 'espresso_db_update'.
-     *                                  If not supplied, fetches it from the options table.
-     *                                  Also, caches its result so later parts of the code can also know whether
-     *                                  there's been an update or not. This way we can add the current version to
-     *                                  espresso_db_update, but still know if this is a new install or not
-     * @return int one of the constants on EE_System::req_type_
-     */
-    public function detect_req_type($espresso_db_update = null)
-    {
-        if ($this->_req_type === null) {
-            $espresso_db_update = ! empty($espresso_db_update)
-                ? $espresso_db_update
-                : $this->fix_espresso_db_upgrade_option();
-            $this->_req_type = EE_System::detect_req_type_given_activation_history(
-                $espresso_db_update,
-                'ee_espresso_activation',
-                espresso_version()
-            );
-            $this->_major_version_change = $this->_detect_major_version_change($espresso_db_update);
-            $this->request->setIsActivation($this->_req_type !== EE_System::req_type_normal);
-        }
-        return $this->_req_type;
-    }
-
-
-    /**
-     * Returns whether or not there was a non-micro version change (ie, change in either
-     * the first or second number in the version. Eg 4.9.0.rc.001 to 4.10.0.rc.000,
-     * but not 4.9.0.rc.0001 to 4.9.1.rc.0001
-     *
-     * @param $activation_history
-     * @return bool
-     */
-    private function _detect_major_version_change($activation_history)
-    {
-        $previous_version = EE_System::_get_most_recently_active_version_from_activation_history($activation_history);
-        $previous_version_parts = explode('.', $previous_version);
-        $current_version_parts = explode('.', espresso_version());
-        return isset($previous_version_parts[0], $previous_version_parts[1], $current_version_parts[0], $current_version_parts[1])
-               && ($previous_version_parts[0] !== $current_version_parts[0]
-                   || $previous_version_parts[1] !== $current_version_parts[1]
-               );
-    }
-
-
-    /**
-     * Returns true if either the major or minor version of EE changed during this request.
-     * Eg 4.9.0.rc.001 to 4.10.0.rc.000, but not 4.9.0.rc.0001 to 4.9.1.rc.0001
-     *
-     * @return bool
-     */
-    public function is_major_version_change()
-    {
-        return $this->_major_version_change;
-    }
-
-
-    /**
-     * Determines the request type for any ee addon, given three piece of info: the current array of activation
-     * histories (for core that' 'espresso_db_update' wp option); the name of the WordPress option which is temporarily
-     * set upon activation of the plugin (for core it's 'ee_espresso_activation'); and the version that this plugin was
-     * just activated to (for core that will always be espresso_version())
-     *
-     * @param array  $activation_history_for_addon     the option's value which stores the activation history for this
-     *                                                 ee plugin. for core that's 'espresso_db_update'
-     * @param string $activation_indicator_option_name the name of the WordPress option that is temporarily set to
-     *                                                 indicate that this plugin was just activated
-     * @param string $version_to_upgrade_to            the version that was just upgraded to (for core that will be
-     *                                                 espresso_version())
-     * @return int one of the constants on EE_System::req_type_*
-     */
-    public static function detect_req_type_given_activation_history(
-        $activation_history_for_addon,
-        $activation_indicator_option_name,
-        $version_to_upgrade_to
-    ) {
-        $version_is_higher = self::_new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to);
-        if ($activation_history_for_addon) {
-            // it exists, so this isn't a completely new install
-            // check if this version already in that list of previously installed versions
-            if (! isset($activation_history_for_addon[ $version_to_upgrade_to ])) {
-                // it a version we haven't seen before
-                if ($version_is_higher === 1) {
-                    $req_type = EE_System::req_type_upgrade;
-                } else {
-                    $req_type = EE_System::req_type_downgrade;
-                }
-                delete_option($activation_indicator_option_name);
-            } else {
-                // its not an update. maybe a reactivation?
-                if (get_option($activation_indicator_option_name, false)) {
-                    if ($version_is_higher === -1) {
-                        $req_type = EE_System::req_type_downgrade;
-                    } elseif ($version_is_higher === 0) {
-                        // we've seen this version before, but it's an activation. must be a reactivation
-                        $req_type = EE_System::req_type_reactivation;
-                    } else {// $version_is_higher === 1
-                        $req_type = EE_System::req_type_upgrade;
-                    }
-                    delete_option($activation_indicator_option_name);
-                } else {
-                    // we've seen this version before and the activation indicate doesn't show it was just activated
-                    if ($version_is_higher === -1) {
-                        $req_type = EE_System::req_type_downgrade;
-                    } elseif ($version_is_higher === 0) {
-                        // we've seen this version before and it's not an activation. its normal request
-                        $req_type = EE_System::req_type_normal;
-                    } else {// $version_is_higher === 1
-                        $req_type = EE_System::req_type_upgrade;
-                    }
-                }
-            }
-        } else {
-            // brand new install
-            $req_type = EE_System::req_type_new_activation;
-            delete_option($activation_indicator_option_name);
-        }
-        return $req_type;
-    }
-
-
-    /**
-     * Detects if the $version_to_upgrade_to is higher than the most recent version in
-     * the $activation_history_for_addon
-     *
-     * @param array  $activation_history_for_addon (keys are versions, values are arrays of times activated,
-     *                                             sometimes containing 'unknown-date'
-     * @param string $version_to_upgrade_to        (current version)
-     * @return int results of version_compare( $version_to_upgrade_to, $most_recently_active_version ).
-     *                                             ie, -1 if $version_to_upgrade_to is LOWER (downgrade);
-     *                                             0 if $version_to_upgrade_to MATCHES (reactivation or normal request);
-     *                                             1 if $version_to_upgrade_to is HIGHER (upgrade) ;
-     */
-    private static function _new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to)
-    {
-        // find the most recently-activated version
-        $most_recently_active_version =
-            EE_System::_get_most_recently_active_version_from_activation_history($activation_history_for_addon);
-        return version_compare($version_to_upgrade_to, $most_recently_active_version);
-    }
-
-
-    /**
-     * Gets the most recently active version listed in the activation history,
-     * and if none are found (ie, it's a brand new install) returns '0.0.0.dev.000'.
-     *
-     * @param array $activation_history  (keys are versions, values are arrays of times activated,
-     *                                   sometimes containing 'unknown-date'
-     * @return string
-     */
-    private static function _get_most_recently_active_version_from_activation_history($activation_history)
-    {
-        $most_recently_active_version_activation = '1970-01-01 00:00:00';
-        $most_recently_active_version = '0.0.0.dev.000';
-        if (is_array($activation_history)) {
-            foreach ($activation_history as $version => $times_activated) {
-                // check there is a record of when this version was activated. Otherwise,
-                // mark it as unknown
-                if (! $times_activated) {
-                    $times_activated = array('unknown-date');
-                }
-                if (is_string($times_activated)) {
-                    $times_activated = array($times_activated);
-                }
-                foreach ($times_activated as $an_activation) {
-                    if ($an_activation !== 'unknown-date'
-                        && $an_activation
-                           > $most_recently_active_version_activation) {
-                        $most_recently_active_version = $version;
-                        $most_recently_active_version_activation = $an_activation === 'unknown-date'
-                            ? '1970-01-01 00:00:00'
-                            : $an_activation;
-                    }
-                }
-            }
-        }
-        return $most_recently_active_version;
-    }
-
-
-    /**
-     * This redirects to the about EE page after activation
-     *
-     * @return void
-     */
-    public function redirect_to_about_ee()
-    {
-        $notices = EE_Error::get_notices(false);
-        // if current user is an admin and it's not an ajax or rest request
-        if (! isset($notices['errors'])
-            && $this->request->isAdmin()
-            && apply_filters(
-                'FHEE__EE_System__redirect_to_about_ee__do_redirect',
-                $this->capabilities->current_user_can('manage_options', 'espresso_about_default')
-            )
-        ) {
-            $query_params = array('page' => 'espresso_about');
-            if (EE_System::instance()->detect_req_type() === EE_System::req_type_new_activation) {
-                $query_params['new_activation'] = true;
-            }
-            if (EE_System::instance()->detect_req_type() === EE_System::req_type_reactivation) {
-                $query_params['reactivation'] = true;
-            }
-            $url = add_query_arg($query_params, admin_url('admin.php'));
-            wp_safe_redirect($url);
-            exit();
-        }
-    }
-
-
-    /**
-     * load_core_configuration
-     * this is hooked into 'AHEE__EE_Bootstrap__load_core_configuration'
-     * which runs during the WP 'plugins_loaded' action at priority 5
-     *
-     * @return void
-     * @throws ReflectionException
-     */
-    public function load_core_configuration()
-    {
-        do_action('AHEE__EE_System__load_core_configuration__begin', $this);
-        $this->loader->getShared('EE_Load_Textdomain');
-        // load textdomain
-        EE_Load_Textdomain::load_textdomain();
-        // load and setup EE_Config and EE_Network_Config
-        $config = $this->loader->getShared('EE_Config');
-        $this->loader->getShared('EE_Network_Config');
-        // setup autoloaders
-        // enable logging?
-        if ($config->admin->use_full_logging) {
-            $this->loader->getShared('EE_Log');
-        }
-        // check for activation errors
-        $activation_errors = get_option('ee_plugin_activation_errors', false);
-        if ($activation_errors) {
-            EE_Error::add_error($activation_errors, __FILE__, __FUNCTION__, __LINE__);
-            update_option('ee_plugin_activation_errors', false);
-        }
-        // get model names
-        $this->_parse_model_names();
-        // load caf stuff a chance to play during the activation process too.
-        $this->_maybe_brew_regular();
-        // configure custom post type definitions
-        $this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions');
-        $this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions');
-        do_action('AHEE__EE_System__load_core_configuration__complete', $this);
-    }
-
-
-    /**
-     * cycles through all of the models/*.model.php files, and assembles an array of model names
-     *
-     * @return void
-     * @throws ReflectionException
-     */
-    private function _parse_model_names()
-    {
-        // get all the files in the EE_MODELS folder that end in .model.php
-        $models = glob(EE_MODELS . '*.model.php');
-        $model_names = array();
-        $non_abstract_db_models = array();
-        foreach ($models as $model) {
-            // get model classname
-            $classname = EEH_File::get_classname_from_filepath_with_standard_filename($model);
-            $short_name = str_replace('EEM_', '', $classname);
-            $reflectionClass = new ReflectionClass($classname);
-            if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
-                $non_abstract_db_models[ $short_name ] = $classname;
-            }
-            $model_names[ $short_name ] = $classname;
-        }
-        $this->registry->models = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
-        $this->registry->non_abstract_db_models = apply_filters(
-            'FHEE__EE_System__parse_implemented_model_names',
-            $non_abstract_db_models
-        );
-    }
-
-
-    /**
-     * The purpose of this method is to simply check for a file named "caffeinated/brewing_regular.php" for any hooks
-     * that need to be setup before our EE_System launches.
-     *
-     * @return void
-     * @throws DomainException
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidClassException
-     * @throws InvalidFilePathException
-     */
-    private function _maybe_brew_regular()
-    {
-        /** @var Domain $domain */
-        $domain = DomainFactory::getShared(
-            new FullyQualifiedName(
-                'EventEspresso\core\domain\Domain'
-            ),
-            array(
-                new FilePath(EVENT_ESPRESSO_MAIN_FILE),
-                Version::fromString(espresso_version()),
-            )
-        );
-        if ($domain->isCaffeinated()) {
-            require_once EE_CAFF_PATH . 'brewing_regular.php';
-        }
-    }
-
-
-    /**
-     * register_shortcodes_modules_and_widgets
-     * generate lists of shortcodes and modules, then verify paths and classes
-     * This is hooked into 'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets'
-     * which runs during the WP 'plugins_loaded' action at priority 7
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function register_shortcodes_modules_and_widgets()
-    {
-        if ($this->request->isFrontend() || $this->request->isIframe()) {
-            try {
-                // load, register, and add shortcodes the new way
-                $this->loader->getShared(
-                    'EventEspresso\core\services\shortcodes\ShortcodesManager',
-                    array(
-                        // and the old way, but we'll put it under control of the new system
-                        EE_Config::getLegacyShortcodesManager(),
-                    )
-                );
-            } catch (Exception $exception) {
-                new ExceptionStackTraceDisplay($exception);
-            }
-        }
-        do_action('AHEE__EE_System__register_shortcodes_modules_and_widgets');
-        // check for addons using old hook point
-        if (has_action('AHEE__EE_System__register_shortcodes_modules_and_addons')) {
-            $this->_incompatible_addon_error();
-        }
-    }
-
-
-    /**
-     * _incompatible_addon_error
-     *
-     * @access public
-     * @return void
-     */
-    private function _incompatible_addon_error()
-    {
-        // get array of classes hooking into here
-        $class_names = EEH_Class_Tools::get_class_names_for_all_callbacks_on_hook(
-            'AHEE__EE_System__register_shortcodes_modules_and_addons'
-        );
-        if (! empty($class_names)) {
-            $msg = __(
-                'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
-                'event_espresso'
-            );
-            $msg .= '<ul>';
-            foreach ($class_names as $class_name) {
-                $msg .= '<li><b>Event Espresso - '
-                        . str_replace(
-                            array('EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'),
-                            '',
-                            $class_name
-                        ) . '</b></li>';
-            }
-            $msg .= '</ul>';
-            $msg .= __(
-                'Compatibility issues can be avoided and/or resolved by keeping addons and plugins updated to the latest version.',
-                'event_espresso'
-            );
-            // save list of incompatible addons to wp-options for later use
-            add_option('ee_incompatible_addons', $class_names, '', 'no');
-            if (is_admin()) {
-                EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-            }
-        }
-    }
-
-
-    /**
-     * brew_espresso
-     * begins the process of setting hooks for initializing EE in the correct order
-     * This is happening on the 'AHEE__EE_Bootstrap__brew_espresso' hook point
-     * which runs during the WP 'plugins_loaded' action at priority 9
-     *
-     * @return void
-     */
-    public function brew_espresso()
-    {
-        do_action('AHEE__EE_System__brew_espresso__begin', $this);
-        // load some final core systems
-        add_action('init', array($this, 'set_hooks_for_core'), 1);
-        add_action('init', array($this, 'perform_activations_upgrades_and_migrations'), 3);
-        add_action('init', array($this, 'load_CPTs_and_session'), 5);
-        add_action('init', array($this, 'load_controllers'), 7);
-        add_action('init', array($this, 'core_loaded_and_ready'), 9);
-        add_action('init', array($this, 'initialize'), 10);
-        add_action('init', array($this, 'initialize_last'), 100);
-        if (is_admin() && apply_filters('FHEE__EE_System__brew_espresso__load_pue', true)) {
-            // pew pew pew
-            $this->loader->getShared('EventEspresso\core\services\licensing\LicenseService');
-            do_action('AHEE__EE_System__brew_espresso__after_pue_init');
-        }
-        do_action('AHEE__EE_System__brew_espresso__complete', $this);
-    }
-
-
-    /**
-     *    set_hooks_for_core
-     *
-     * @access public
-     * @return    void
-     * @throws EE_Error
-     */
-    public function set_hooks_for_core()
-    {
-        $this->_deactivate_incompatible_addons();
-        do_action('AHEE__EE_System__set_hooks_for_core');
-        $this->loader->getShared('EventEspresso\core\domain\values\session\SessionLifespan');
-        // caps need to be initialized on every request so that capability maps are set.
-        // @see https://events.codebasehq.com/projects/event-espresso/tickets/8674
-        $this->registry->CAP->init_caps();
-    }
-
-
-    /**
-     * Using the information gathered in EE_System::_incompatible_addon_error,
-     * deactivates any addons considered incompatible with the current version of EE
-     */
-    private function _deactivate_incompatible_addons()
-    {
-        $incompatible_addons = get_option('ee_incompatible_addons', array());
-        if (! empty($incompatible_addons)) {
-            $active_plugins = get_option('active_plugins', array());
-            foreach ($active_plugins as $active_plugin) {
-                foreach ($incompatible_addons as $incompatible_addon) {
-                    if (strpos($active_plugin, $incompatible_addon) !== false) {
-                        unset($_GET['activate']);
-                        espresso_deactivate_plugin($active_plugin);
-                    }
-                }
-            }
-        }
-    }
-
-
-    /**
-     *    perform_activations_upgrades_and_migrations
-     *
-     * @access public
-     * @return    void
-     */
-    public function perform_activations_upgrades_and_migrations()
-    {
-        do_action('AHEE__EE_System__perform_activations_upgrades_and_migrations');
-    }
-
-
-    /**
-     * @return void
-     * @throws DomainException
-     */
-    public function load_CPTs_and_session()
-    {
-        do_action('AHEE__EE_System__load_CPTs_and_session__start');
-        /** @var EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies $register_custom_taxonomies */
-        $register_custom_taxonomies = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'
-        );
-        $register_custom_taxonomies->registerCustomTaxonomies();
-        /** @var EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes $register_custom_post_types */
-        $register_custom_post_types = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'
-        );
-        $register_custom_post_types->registerCustomPostTypes();
-        /** @var EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomyTerms $register_custom_taxonomy_terms */
-        $register_custom_taxonomy_terms = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomyTerms'
-        );
-        $register_custom_taxonomy_terms->registerCustomTaxonomyTerms();
-        // load legacy Custom Post Types and Taxonomies
-        $this->loader->getShared('EE_Register_CPTs');
-        do_action('AHEE__EE_System__load_CPTs_and_session__complete');
-    }
-
-
-    /**
-     * load_controllers
-     * this is the best place to load any additional controllers that needs access to EE core.
-     * it is expected that all basic core EE systems, that are not dependant on the current request are loaded at this
-     * time
-     *
-     * @access public
-     * @return void
-     */
-    public function load_controllers()
-    {
-        do_action('AHEE__EE_System__load_controllers__start');
-        // let's get it started
-        if (! $this->maintenance_mode->level()
-            && ($this->request->isFrontend() || $this->request->isFrontAjax())
-        ) {
-            do_action('AHEE__EE_System__load_controllers__load_front_controllers');
-            $this->loader->getShared('EE_Front_Controller');
-        } elseif ($this->request->isAdmin() || $this->request->isAdminAjax()) {
-            do_action('AHEE__EE_System__load_controllers__load_admin_controllers');
-            $this->loader->getShared('EE_Admin');
-        }
-        do_action('AHEE__EE_System__load_controllers__complete');
-    }
-
-
-    /**
-     * core_loaded_and_ready
-     * all of the basic EE core should be loaded at this point and available regardless of M-Mode
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function core_loaded_and_ready()
-    {
-        if ($this->request->isAdmin() || $this->request->isFrontend() || $this->request->isIframe()) {
-            try {
-                $this->loader->getShared('EventEspresso\core\services\assets\Registry');
-                $this->loader->getShared('EventEspresso\core\domain\services\assets\CoreAssetManager');
-            } catch (Exception $exception) {
-                new ExceptionStackTraceDisplay($exception);
-            }
-        }
-        if ($this->request->isAdmin()
-            || $this->request->isEeAjax()
-            || $this->request->isFrontend()
-        ) {
-            $this->loader->getShared('EE_Session');
-        }
-        do_action('AHEE__EE_System__core_loaded_and_ready');
-        // load_espresso_template_tags
-        if (is_readable(EE_PUBLIC . 'template_tags.php')
-            && ($this->request->isFrontend() || $this->request->isIframe() || $this->request->isFeed())
-        ) {
-            require_once EE_PUBLIC . 'template_tags.php';
-        }
-        do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
-    }
-
-
-    /**
-     * initialize
-     * this is the best place to begin initializing client code
-     *
-     * @access public
-     * @return void
-     */
-    public function initialize()
-    {
-        do_action('AHEE__EE_System__initialize');
-    }
-
-
-    /**
-     * initialize_last
-     * this is run really late during the WP init hook point, and ensures that mostly everything else that needs to
-     * initialize has done so
-     *
-     * @access public
-     * @return void
-     */
-    public function initialize_last()
-    {
-        do_action('AHEE__EE_System__initialize_last');
-        /** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
-        $rewrite_rules = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
-        );
-        $rewrite_rules->flushRewriteRules();
-        add_action('admin_bar_init', array($this, 'addEspressoToolbar'));
-        if (($this->request->isAjax() || $this->request->isAdmin())
-            && $this->maintenance_mode->models_can_query()) {
-            $this->loader->getShared('EventEspresso\core\services\privacy\export\PersonalDataExporterManager');
-            $this->loader->getShared('EventEspresso\core\services\privacy\erasure\PersonalDataEraserManager');
-        }
-    }
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     */
-    public function addEspressoToolbar()
-    {
-        $this->loader->getShared(
-            'EventEspresso\core\domain\services\admin\AdminToolBar',
-            array($this->registry->CAP)
-        );
-    }
-
-
-    /**
-     * do_not_cache
-     * sets no cache headers and defines no cache constants for WP plugins
-     *
-     * @access public
-     * @return void
-     */
-    public static function do_not_cache()
-    {
-        // set no cache constants
-        if (! defined('DONOTCACHEPAGE')) {
-            define('DONOTCACHEPAGE', true);
-        }
-        if (! defined('DONOTCACHCEOBJECT')) {
-            define('DONOTCACHCEOBJECT', true);
-        }
-        if (! defined('DONOTCACHEDB')) {
-            define('DONOTCACHEDB', true);
-        }
-        // add no cache headers
-        add_action('send_headers', array('EE_System', 'nocache_headers'), 10);
-        // plus a little extra for nginx and Google Chrome
-        add_filter('nocache_headers', array('EE_System', 'extra_nocache_headers'), 10, 1);
-        // prevent browsers from prefetching of the rel='next' link, because it may contain content that interferes with the registration process
-        remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
-    }
-
-
-    /**
-     *    extra_nocache_headers
-     *
-     * @access    public
-     * @param $headers
-     * @return    array
-     */
-    public static function extra_nocache_headers($headers)
-    {
-        // for NGINX
-        $headers['X-Accel-Expires'] = 0;
-        // plus extra for Google Chrome since it doesn't seem to respect "no-cache", but WILL respect "no-store"
-        $headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0';
-        return $headers;
-    }
-
-
-    /**
-     *    nocache_headers
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function nocache_headers()
-    {
-        nocache_headers();
-    }
-
-
-    /**
-     * simply hooks into "wp_list_pages_exclude" filter (for wp_list_pages method) and makes sure EE critical pages are
-     * never returned with the function.
-     *
-     * @param  array $exclude_array any existing pages being excluded are in this array.
-     * @return array
-     */
-    public function remove_pages_from_wp_list_pages($exclude_array)
-    {
-        return array_merge($exclude_array, $this->registry->CFG->core->get_critical_pages_array());
-    }
+	/**
+	 * indicates this is a 'normal' request. Ie, not activation, nor upgrade, nor activation.
+	 * So examples of this would be a normal GET request on the frontend or backend, or a POST, etc
+	 */
+	const req_type_normal = 0;
+
+	/**
+	 * Indicates this is a brand new installation of EE so we should install
+	 * tables and default data etc
+	 */
+	const req_type_new_activation = 1;
+
+	/**
+	 * we've detected that EE has been reactivated (or EE was activated during maintenance mode,
+	 * and we just exited maintenance mode). We MUST check the database is setup properly
+	 * and that default data is setup too
+	 */
+	const req_type_reactivation = 2;
+
+	/**
+	 * indicates that EE has been upgraded since its previous request.
+	 * We may have data migration scripts to call and will want to trigger maintenance mode
+	 */
+	const req_type_upgrade = 3;
+
+	/**
+	 * TODO  will detect that EE has been DOWNGRADED. We probably don't want to run in this case...
+	 */
+	const req_type_downgrade = 4;
+
+	/**
+	 * @deprecated since version 4.6.0.dev.006
+	 * Now whenever a new_activation is detected the request type is still just
+	 * new_activation (same for reactivation, upgrade, downgrade etc), but if we'r ein maintenance mode
+	 * EE_System::initialize_db_if_no_migrations_required and EE_Addon::initialize_db_if_no_migrations_required
+	 * will instead enqueue that EE plugin's db initialization for when we're taken out of maintenance mode.
+	 * (Specifically, when the migration manager indicates migrations are finished
+	 * EE_Data_Migration_Manager::initialize_db_for_enqueued_ee_plugins() will be called)
+	 */
+	const req_type_activation_but_not_installed = 5;
+
+	/**
+	 * option prefix for recording the activation history (like core's "espresso_db_update") of addons
+	 */
+	const addon_activation_history_option_prefix = 'ee_addon_activation_history_';
+
+	/**
+	 * @var EE_System $_instance
+	 */
+	private static $_instance;
+
+	/**
+	 * @var EE_Registry $registry
+	 */
+	private $registry;
+
+	/**
+	 * @var LoaderInterface $loader
+	 */
+	private $loader;
+
+	/**
+	 * @var EE_Capabilities $capabilities
+	 */
+	private $capabilities;
+
+	/**
+	 * @var RequestInterface $request
+	 */
+	private $request;
+
+	/**
+	 * @var EE_Maintenance_Mode $maintenance_mode
+	 */
+	private $maintenance_mode;
+
+	/**
+	 * Stores which type of request this is, options being one of the constants on EE_System starting with req_type_*.
+	 * It can be a brand-new activation, a reactivation, an upgrade, a downgrade, or a normal request.
+	 *
+	 * @var int $_req_type
+	 */
+	private $_req_type;
+
+	/**
+	 * Whether or not there was a non-micro version change in EE core version during this request
+	 *
+	 * @var boolean $_major_version_change
+	 */
+	private $_major_version_change = false;
+
+	/**
+	 * A Context DTO dedicated solely to identifying the current request type.
+	 *
+	 * @var RequestTypeContextCheckerInterface $request_type
+	 */
+	private $request_type;
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param EE_Registry|null         $registry
+	 * @param LoaderInterface|null     $loader
+	 * @param RequestInterface|null    $request
+	 * @param EE_Maintenance_Mode|null $maintenance_mode
+	 * @return EE_System
+	 */
+	public static function instance(
+		EE_Registry $registry = null,
+		LoaderInterface $loader = null,
+		RequestInterface $request = null,
+		EE_Maintenance_Mode $maintenance_mode = null
+	) {
+		// check if class object is instantiated
+		if (! self::$_instance instanceof EE_System) {
+			self::$_instance = new self($registry, $loader, $request, $maintenance_mode);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * resets the instance and returns it
+	 *
+	 * @return EE_System
+	 */
+	public static function reset()
+	{
+		self::$_instance->_req_type = null;
+		// make sure none of the old hooks are left hanging around
+		remove_all_actions('AHEE__EE_System__perform_activations_upgrades_and_migrations');
+		// we need to reset the migration manager in order for it to detect DMSs properly
+		EE_Data_Migration_Manager::reset();
+		self::instance()->detect_activations_or_upgrades();
+		self::instance()->perform_activations_upgrades_and_migrations();
+		return self::instance();
+	}
+
+
+	/**
+	 * sets hooks for running rest of system
+	 * provides "AHEE__EE_System__construct__complete" hook for EE Addons to use as their starting point
+	 * starting EE Addons from any other point may lead to problems
+	 *
+	 * @param EE_Registry         $registry
+	 * @param LoaderInterface     $loader
+	 * @param RequestInterface    $request
+	 * @param EE_Maintenance_Mode $maintenance_mode
+	 */
+	private function __construct(
+		EE_Registry $registry,
+		LoaderInterface $loader,
+		RequestInterface $request,
+		EE_Maintenance_Mode $maintenance_mode
+	) {
+		$this->registry = $registry;
+		$this->loader = $loader;
+		$this->request = $request;
+		$this->maintenance_mode = $maintenance_mode;
+		do_action('AHEE__EE_System__construct__begin', $this);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'loadCapabilities'),
+			5
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'loadCommandBus'),
+			7
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'loadPluginApi'),
+			9
+		);
+		// allow addons to load first so that they can register autoloaders, set hooks for running DMS's, etc
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'load_espresso_addons')
+		);
+		// when an ee addon is activated, we want to call the core hook(s) again
+		// because the newly-activated addon didn't get a chance to run at all
+		add_action('activate_plugin', array($this, 'load_espresso_addons'), 1);
+		// detect whether install or upgrade
+		add_action(
+			'AHEE__EE_Bootstrap__detect_activations_or_upgrades',
+			array($this, 'detect_activations_or_upgrades'),
+			3
+		);
+		// load EE_Config, EE_Textdomain, etc
+		add_action(
+			'AHEE__EE_Bootstrap__load_core_configuration',
+			array($this, 'load_core_configuration'),
+			5
+		);
+		// load EE_Config, EE_Textdomain, etc
+		add_action(
+			'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets',
+			array($this, 'register_shortcodes_modules_and_widgets'),
+			7
+		);
+		// you wanna get going? I wanna get going... let's get going!
+		add_action(
+			'AHEE__EE_Bootstrap__brew_espresso',
+			array($this, 'brew_espresso'),
+			9
+		);
+		// other housekeeping
+		// exclude EE critical pages from wp_list_pages
+		add_filter(
+			'wp_list_pages_excludes',
+			array($this, 'remove_pages_from_wp_list_pages'),
+			10
+		);
+		// ALL EE Addons should use the following hook point to attach their initial setup too
+		// it's extremely important for EE Addons to register any class autoloaders so that they can be available when the EE_Config loads
+		do_action('AHEE__EE_System__construct__complete', $this);
+	}
+
+
+	/**
+	 * load and setup EE_Capabilities
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function loadCapabilities()
+	{
+		$this->capabilities = $this->loader->getShared('EE_Capabilities');
+		add_action(
+			'AHEE__EE_Capabilities__init_caps__before_initialization',
+			function () {
+				LoaderFactory::getLoader()->getShared('EE_Payment_Method_Manager');
+			}
+		);
+	}
+
+
+	/**
+	 * create and cache the CommandBus, and also add middleware
+	 * The CapChecker middleware requires the use of EE_Capabilities
+	 * which is why we need to load the CommandBus after Caps are set up
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function loadCommandBus()
+	{
+		$this->loader->getShared(
+			'CommandBusInterface',
+			array(
+				null,
+				apply_filters(
+					'FHEE__EE_Load_Espresso_Core__handle_request__CommandBus_middleware',
+					array(
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\CapChecker'),
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\AddActionHook'),
+					)
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function loadPluginApi()
+	{
+		// set autoloaders for all of the classes implementing EEI_Plugin_API
+		// which provide helpers for EE plugin authors to more easily register certain components with EE.
+		EEH_Autoloader::instance()->register_autoloaders_for_each_file_in_folder(EE_LIBRARIES . 'plugin_api');
+		$this->loader->getShared('EE_Request_Handler');
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @param string $version_constant
+	 * @param string $min_version_required
+	 * @param string $load_callback
+	 * @param string $plugin_file_constant
+	 * @return void
+	 */
+	private function deactivateIncompatibleAddon(
+		$addon_name,
+		$version_constant,
+		$min_version_required,
+		$load_callback,
+		$plugin_file_constant
+	) {
+		if (! defined($version_constant)) {
+			return;
+		}
+		$addon_version = constant($version_constant);
+		if ($addon_version && version_compare($addon_version, $min_version_required, '<')) {
+			remove_action('AHEE__EE_System__load_espresso_addons', $load_callback);
+			if (! function_exists('deactivate_plugins')) {
+				require_once ABSPATH . 'wp-admin/includes/plugin.php';
+			}
+			deactivate_plugins(plugin_basename(constant($plugin_file_constant)));
+			unset($_GET['activate'], $_REQUEST['activate'], $_GET['activate-multi'], $_REQUEST['activate-multi']);
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'We\'re sorry, but the Event Espresso %1$s addon was deactivated because version %2$s or higher is required with this version of Event Espresso core.',
+						'event_espresso'
+					),
+					$addon_name,
+					$min_version_required
+				),
+				__FILE__,
+				__FUNCTION__ . "({$addon_name})",
+				__LINE__
+			);
+			EE_Error::get_notices(false, true);
+		}
+	}
+
+
+	/**
+	 * load_espresso_addons
+	 * allow addons to load first so that they can set hooks for running DMS's, etc
+	 * this is hooked into both:
+	 *    'AHEE__EE_Bootstrap__load_core_configuration'
+	 *        which runs during the WP 'plugins_loaded' action at priority 5
+	 *    and the WP 'activate_plugin' hook point
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function load_espresso_addons()
+	{
+		$this->deactivateIncompatibleAddon(
+			'Wait Lists',
+			'EE_WAIT_LISTS_VERSION',
+			'1.0.0.beta.074',
+			'load_espresso_wait_lists',
+			'EE_WAIT_LISTS_PLUGIN_FILE'
+		);
+		$this->deactivateIncompatibleAddon(
+			'Automated Upcoming Event Notifications',
+			'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_VERSION',
+			'1.0.0.beta.091',
+			'load_espresso_automated_upcoming_event_notification',
+			'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_PLUGIN_FILE'
+		);
+		do_action('AHEE__EE_System__load_espresso_addons');
+		// if the WP API basic auth plugin isn't already loaded, load it now.
+		// We want it for mobile apps. Just include the entire plugin
+		// also, don't load the basic auth when a plugin is getting activated, because
+		// it could be the basic auth plugin, and it doesn't check if its methods are already defined
+		// and causes a fatal error
+		if ($this->request->getRequestParam('activate') !== 'true'
+			&& ! function_exists('json_basic_auth_handler')
+			&& ! function_exists('json_basic_auth_error')
+			&& ! in_array(
+				$this->request->getRequestParam('action'),
+				array('activate', 'activate-selected'),
+				true
+			)
+		) {
+			include_once EE_THIRD_PARTY . 'wp-api-basic-auth' . DS . 'basic-auth.php';
+		}
+		do_action('AHEE__EE_System__load_espresso_addons__complete');
+	}
+
+
+	/**
+	 * detect_activations_or_upgrades
+	 * Checks for activation or upgrade of core first;
+	 * then also checks if any registered addons have been activated or upgraded
+	 * This is hooked into 'AHEE__EE_Bootstrap__detect_activations_or_upgrades'
+	 * which runs during the WP 'plugins_loaded' action at priority 3
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function detect_activations_or_upgrades()
+	{
+		// first off: let's make sure to handle core
+		$this->detect_if_activation_or_upgrade();
+		foreach ($this->registry->addons as $addon) {
+			if ($addon instanceof EE_Addon) {
+				// detect teh request type for that addon
+				$addon->detect_activation_or_upgrade();
+			}
+		}
+	}
+
+
+	/**
+	 * detect_if_activation_or_upgrade
+	 * Takes care of detecting whether this is a brand new install or code upgrade,
+	 * and either setting up the DB or setting up maintenance mode etc.
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function detect_if_activation_or_upgrade()
+	{
+		do_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin');
+		// check if db has been updated, or if its a brand-new installation
+		$espresso_db_update = $this->fix_espresso_db_upgrade_option();
+		$request_type = $this->detect_req_type($espresso_db_update);
+		// EEH_Debug_Tools::printr( $request_type, '$request_type', __FILE__, __LINE__ );
+		switch ($request_type) {
+			case EE_System::req_type_new_activation:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__new_activation');
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_reactivation:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__reactivation');
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_upgrade:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__upgrade');
+				// migrations may be required now that we've upgraded
+				$this->maintenance_mode->set_maintenance_mode_if_db_old();
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_downgrade:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__downgrade');
+				// its possible migrations are no longer required
+				$this->maintenance_mode->set_maintenance_mode_if_db_old();
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_normal:
+			default:
+				break;
+		}
+		do_action('AHEE__EE_System__detect_if_activation_or_upgrade__complete');
+	}
+
+
+	/**
+	 * Updates the list of installed versions and sets hooks for
+	 * initializing the database later during the request
+	 *
+	 * @param array $espresso_db_update
+	 */
+	private function _handle_core_version_change($espresso_db_update)
+	{
+		$this->update_list_of_installed_versions($espresso_db_update);
+		// get ready to verify the DB is ok (provided we aren't in maintenance mode, of course)
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			array($this, 'initialize_db_if_no_migrations_required')
+		);
+	}
+
+
+	/**
+	 * standardizes the wp option 'espresso_db_upgrade' which actually stores
+	 * information about what versions of EE have been installed and activated,
+	 * NOT necessarily the state of the database
+	 *
+	 * @param mixed $espresso_db_update           the value of the WordPress option.
+	 *                                            If not supplied, fetches it from the options table
+	 * @return array the correct value of 'espresso_db_upgrade', after saving it, if it needed correction
+	 */
+	private function fix_espresso_db_upgrade_option($espresso_db_update = null)
+	{
+		do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
+		if (! $espresso_db_update) {
+			$espresso_db_update = get_option('espresso_db_update');
+		}
+		// check that option is an array
+		if (! is_array($espresso_db_update)) {
+			// if option is FALSE, then it never existed
+			if ($espresso_db_update === false) {
+				// make $espresso_db_update an array and save option with autoload OFF
+				$espresso_db_update = array();
+				add_option('espresso_db_update', $espresso_db_update, '', 'no');
+			} else {
+				// option is NOT FALSE but also is NOT an array, so make it an array and save it
+				$espresso_db_update = array($espresso_db_update => array());
+				update_option('espresso_db_update', $espresso_db_update);
+			}
+		} else {
+			$corrected_db_update = array();
+			// if IS an array, but is it an array where KEYS are version numbers, and values are arrays?
+			foreach ($espresso_db_update as $should_be_version_string => $should_be_array) {
+				if (is_int($should_be_version_string) && ! is_array($should_be_array)) {
+					// the key is an int, and the value IS NOT an array
+					// so it must be numerically-indexed, where values are versions installed...
+					// fix it!
+					$version_string = $should_be_array;
+					$corrected_db_update[ $version_string ] = array('unknown-date');
+				} else {
+					// ok it checks out
+					$corrected_db_update[ $should_be_version_string ] = $should_be_array;
+				}
+			}
+			$espresso_db_update = $corrected_db_update;
+			update_option('espresso_db_update', $espresso_db_update);
+		}
+		do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__complete', $espresso_db_update);
+		return $espresso_db_update;
+	}
+
+
+	/**
+	 * Does the traditional work of setting up the plugin's database and adding default data.
+	 * If migration script/process did not exist, this is what would happen on every activation/reactivation/upgrade.
+	 * NOTE: if we're in maintenance mode (which would be the case if we detect there are data
+	 * migration scripts that need to be run and a version change happens), enqueues core for database initialization,
+	 * so that it will be done when migrations are finished
+	 *
+	 * @param boolean $initialize_addons_too if true, we double-check addons' database tables etc too;
+	 * @param boolean $verify_schema         if true will re-check the database tables have the correct schema.
+	 *                                       This is a resource-intensive job
+	 *                                       so we prefer to only do it when necessary
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function initialize_db_if_no_migrations_required($initialize_addons_too = false, $verify_schema = true)
+	{
+		$request_type = $this->detect_req_type();
+		// only initialize system if we're not in maintenance mode.
+		if ($this->maintenance_mode->level() !== EE_Maintenance_Mode::level_2_complete_maintenance) {
+			/** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
+			$rewrite_rules = $this->loader->getShared(
+				'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
+			);
+			$rewrite_rules->flush();
+			if ($verify_schema) {
+				EEH_Activation::initialize_db_and_folders();
+			}
+			EEH_Activation::initialize_db_content();
+			EEH_Activation::system_initialization();
+			if ($initialize_addons_too) {
+				$this->initialize_addons();
+			}
+		} else {
+			EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for('Core');
+		}
+		if ($request_type === EE_System::req_type_new_activation
+			|| $request_type === EE_System::req_type_reactivation
+			|| (
+				$request_type === EE_System::req_type_upgrade
+				&& $this->is_major_version_change()
+			)
+		) {
+			add_action('AHEE__EE_System__initialize_last', array($this, 'redirect_to_about_ee'), 9);
+		}
+	}
+
+
+	/**
+	 * Initializes the db for all registered addons
+	 *
+	 * @throws EE_Error
+	 */
+	public function initialize_addons()
+	{
+		// foreach registered addon, make sure its db is up-to-date too
+		foreach ($this->registry->addons as $addon) {
+			if ($addon instanceof EE_Addon) {
+				$addon->initialize_db_if_no_migrations_required();
+			}
+		}
+	}
+
+
+	/**
+	 * Adds the current code version to the saved wp option which stores a list of all ee versions ever installed.
+	 *
+	 * @param    array  $version_history
+	 * @param    string $current_version_to_add version to be added to the version history
+	 * @return    boolean success as to whether or not this option was changed
+	 */
+	public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null)
+	{
+		if (! $version_history) {
+			$version_history = $this->fix_espresso_db_upgrade_option($version_history);
+		}
+		if ($current_version_to_add === null) {
+			$current_version_to_add = espresso_version();
+		}
+		$version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
+		// re-save
+		return update_option('espresso_db_update', $version_history);
+	}
+
+
+	/**
+	 * Detects if the current version indicated in the has existed in the list of
+	 * previously-installed versions of EE (espresso_db_update). Does NOT modify it (ie, no side-effect)
+	 *
+	 * @param array $espresso_db_update array from the wp option stored under the name 'espresso_db_update'.
+	 *                                  If not supplied, fetches it from the options table.
+	 *                                  Also, caches its result so later parts of the code can also know whether
+	 *                                  there's been an update or not. This way we can add the current version to
+	 *                                  espresso_db_update, but still know if this is a new install or not
+	 * @return int one of the constants on EE_System::req_type_
+	 */
+	public function detect_req_type($espresso_db_update = null)
+	{
+		if ($this->_req_type === null) {
+			$espresso_db_update = ! empty($espresso_db_update)
+				? $espresso_db_update
+				: $this->fix_espresso_db_upgrade_option();
+			$this->_req_type = EE_System::detect_req_type_given_activation_history(
+				$espresso_db_update,
+				'ee_espresso_activation',
+				espresso_version()
+			);
+			$this->_major_version_change = $this->_detect_major_version_change($espresso_db_update);
+			$this->request->setIsActivation($this->_req_type !== EE_System::req_type_normal);
+		}
+		return $this->_req_type;
+	}
+
+
+	/**
+	 * Returns whether or not there was a non-micro version change (ie, change in either
+	 * the first or second number in the version. Eg 4.9.0.rc.001 to 4.10.0.rc.000,
+	 * but not 4.9.0.rc.0001 to 4.9.1.rc.0001
+	 *
+	 * @param $activation_history
+	 * @return bool
+	 */
+	private function _detect_major_version_change($activation_history)
+	{
+		$previous_version = EE_System::_get_most_recently_active_version_from_activation_history($activation_history);
+		$previous_version_parts = explode('.', $previous_version);
+		$current_version_parts = explode('.', espresso_version());
+		return isset($previous_version_parts[0], $previous_version_parts[1], $current_version_parts[0], $current_version_parts[1])
+			   && ($previous_version_parts[0] !== $current_version_parts[0]
+				   || $previous_version_parts[1] !== $current_version_parts[1]
+			   );
+	}
+
+
+	/**
+	 * Returns true if either the major or minor version of EE changed during this request.
+	 * Eg 4.9.0.rc.001 to 4.10.0.rc.000, but not 4.9.0.rc.0001 to 4.9.1.rc.0001
+	 *
+	 * @return bool
+	 */
+	public function is_major_version_change()
+	{
+		return $this->_major_version_change;
+	}
+
+
+	/**
+	 * Determines the request type for any ee addon, given three piece of info: the current array of activation
+	 * histories (for core that' 'espresso_db_update' wp option); the name of the WordPress option which is temporarily
+	 * set upon activation of the plugin (for core it's 'ee_espresso_activation'); and the version that this plugin was
+	 * just activated to (for core that will always be espresso_version())
+	 *
+	 * @param array  $activation_history_for_addon     the option's value which stores the activation history for this
+	 *                                                 ee plugin. for core that's 'espresso_db_update'
+	 * @param string $activation_indicator_option_name the name of the WordPress option that is temporarily set to
+	 *                                                 indicate that this plugin was just activated
+	 * @param string $version_to_upgrade_to            the version that was just upgraded to (for core that will be
+	 *                                                 espresso_version())
+	 * @return int one of the constants on EE_System::req_type_*
+	 */
+	public static function detect_req_type_given_activation_history(
+		$activation_history_for_addon,
+		$activation_indicator_option_name,
+		$version_to_upgrade_to
+	) {
+		$version_is_higher = self::_new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to);
+		if ($activation_history_for_addon) {
+			// it exists, so this isn't a completely new install
+			// check if this version already in that list of previously installed versions
+			if (! isset($activation_history_for_addon[ $version_to_upgrade_to ])) {
+				// it a version we haven't seen before
+				if ($version_is_higher === 1) {
+					$req_type = EE_System::req_type_upgrade;
+				} else {
+					$req_type = EE_System::req_type_downgrade;
+				}
+				delete_option($activation_indicator_option_name);
+			} else {
+				// its not an update. maybe a reactivation?
+				if (get_option($activation_indicator_option_name, false)) {
+					if ($version_is_higher === -1) {
+						$req_type = EE_System::req_type_downgrade;
+					} elseif ($version_is_higher === 0) {
+						// we've seen this version before, but it's an activation. must be a reactivation
+						$req_type = EE_System::req_type_reactivation;
+					} else {// $version_is_higher === 1
+						$req_type = EE_System::req_type_upgrade;
+					}
+					delete_option($activation_indicator_option_name);
+				} else {
+					// we've seen this version before and the activation indicate doesn't show it was just activated
+					if ($version_is_higher === -1) {
+						$req_type = EE_System::req_type_downgrade;
+					} elseif ($version_is_higher === 0) {
+						// we've seen this version before and it's not an activation. its normal request
+						$req_type = EE_System::req_type_normal;
+					} else {// $version_is_higher === 1
+						$req_type = EE_System::req_type_upgrade;
+					}
+				}
+			}
+		} else {
+			// brand new install
+			$req_type = EE_System::req_type_new_activation;
+			delete_option($activation_indicator_option_name);
+		}
+		return $req_type;
+	}
+
+
+	/**
+	 * Detects if the $version_to_upgrade_to is higher than the most recent version in
+	 * the $activation_history_for_addon
+	 *
+	 * @param array  $activation_history_for_addon (keys are versions, values are arrays of times activated,
+	 *                                             sometimes containing 'unknown-date'
+	 * @param string $version_to_upgrade_to        (current version)
+	 * @return int results of version_compare( $version_to_upgrade_to, $most_recently_active_version ).
+	 *                                             ie, -1 if $version_to_upgrade_to is LOWER (downgrade);
+	 *                                             0 if $version_to_upgrade_to MATCHES (reactivation or normal request);
+	 *                                             1 if $version_to_upgrade_to is HIGHER (upgrade) ;
+	 */
+	private static function _new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to)
+	{
+		// find the most recently-activated version
+		$most_recently_active_version =
+			EE_System::_get_most_recently_active_version_from_activation_history($activation_history_for_addon);
+		return version_compare($version_to_upgrade_to, $most_recently_active_version);
+	}
+
+
+	/**
+	 * Gets the most recently active version listed in the activation history,
+	 * and if none are found (ie, it's a brand new install) returns '0.0.0.dev.000'.
+	 *
+	 * @param array $activation_history  (keys are versions, values are arrays of times activated,
+	 *                                   sometimes containing 'unknown-date'
+	 * @return string
+	 */
+	private static function _get_most_recently_active_version_from_activation_history($activation_history)
+	{
+		$most_recently_active_version_activation = '1970-01-01 00:00:00';
+		$most_recently_active_version = '0.0.0.dev.000';
+		if (is_array($activation_history)) {
+			foreach ($activation_history as $version => $times_activated) {
+				// check there is a record of when this version was activated. Otherwise,
+				// mark it as unknown
+				if (! $times_activated) {
+					$times_activated = array('unknown-date');
+				}
+				if (is_string($times_activated)) {
+					$times_activated = array($times_activated);
+				}
+				foreach ($times_activated as $an_activation) {
+					if ($an_activation !== 'unknown-date'
+						&& $an_activation
+						   > $most_recently_active_version_activation) {
+						$most_recently_active_version = $version;
+						$most_recently_active_version_activation = $an_activation === 'unknown-date'
+							? '1970-01-01 00:00:00'
+							: $an_activation;
+					}
+				}
+			}
+		}
+		return $most_recently_active_version;
+	}
+
+
+	/**
+	 * This redirects to the about EE page after activation
+	 *
+	 * @return void
+	 */
+	public function redirect_to_about_ee()
+	{
+		$notices = EE_Error::get_notices(false);
+		// if current user is an admin and it's not an ajax or rest request
+		if (! isset($notices['errors'])
+			&& $this->request->isAdmin()
+			&& apply_filters(
+				'FHEE__EE_System__redirect_to_about_ee__do_redirect',
+				$this->capabilities->current_user_can('manage_options', 'espresso_about_default')
+			)
+		) {
+			$query_params = array('page' => 'espresso_about');
+			if (EE_System::instance()->detect_req_type() === EE_System::req_type_new_activation) {
+				$query_params['new_activation'] = true;
+			}
+			if (EE_System::instance()->detect_req_type() === EE_System::req_type_reactivation) {
+				$query_params['reactivation'] = true;
+			}
+			$url = add_query_arg($query_params, admin_url('admin.php'));
+			wp_safe_redirect($url);
+			exit();
+		}
+	}
+
+
+	/**
+	 * load_core_configuration
+	 * this is hooked into 'AHEE__EE_Bootstrap__load_core_configuration'
+	 * which runs during the WP 'plugins_loaded' action at priority 5
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 */
+	public function load_core_configuration()
+	{
+		do_action('AHEE__EE_System__load_core_configuration__begin', $this);
+		$this->loader->getShared('EE_Load_Textdomain');
+		// load textdomain
+		EE_Load_Textdomain::load_textdomain();
+		// load and setup EE_Config and EE_Network_Config
+		$config = $this->loader->getShared('EE_Config');
+		$this->loader->getShared('EE_Network_Config');
+		// setup autoloaders
+		// enable logging?
+		if ($config->admin->use_full_logging) {
+			$this->loader->getShared('EE_Log');
+		}
+		// check for activation errors
+		$activation_errors = get_option('ee_plugin_activation_errors', false);
+		if ($activation_errors) {
+			EE_Error::add_error($activation_errors, __FILE__, __FUNCTION__, __LINE__);
+			update_option('ee_plugin_activation_errors', false);
+		}
+		// get model names
+		$this->_parse_model_names();
+		// load caf stuff a chance to play during the activation process too.
+		$this->_maybe_brew_regular();
+		// configure custom post type definitions
+		$this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions');
+		$this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions');
+		do_action('AHEE__EE_System__load_core_configuration__complete', $this);
+	}
+
+
+	/**
+	 * cycles through all of the models/*.model.php files, and assembles an array of model names
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 */
+	private function _parse_model_names()
+	{
+		// get all the files in the EE_MODELS folder that end in .model.php
+		$models = glob(EE_MODELS . '*.model.php');
+		$model_names = array();
+		$non_abstract_db_models = array();
+		foreach ($models as $model) {
+			// get model classname
+			$classname = EEH_File::get_classname_from_filepath_with_standard_filename($model);
+			$short_name = str_replace('EEM_', '', $classname);
+			$reflectionClass = new ReflectionClass($classname);
+			if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
+				$non_abstract_db_models[ $short_name ] = $classname;
+			}
+			$model_names[ $short_name ] = $classname;
+		}
+		$this->registry->models = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
+		$this->registry->non_abstract_db_models = apply_filters(
+			'FHEE__EE_System__parse_implemented_model_names',
+			$non_abstract_db_models
+		);
+	}
+
+
+	/**
+	 * The purpose of this method is to simply check for a file named "caffeinated/brewing_regular.php" for any hooks
+	 * that need to be setup before our EE_System launches.
+	 *
+	 * @return void
+	 * @throws DomainException
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidClassException
+	 * @throws InvalidFilePathException
+	 */
+	private function _maybe_brew_regular()
+	{
+		/** @var Domain $domain */
+		$domain = DomainFactory::getShared(
+			new FullyQualifiedName(
+				'EventEspresso\core\domain\Domain'
+			),
+			array(
+				new FilePath(EVENT_ESPRESSO_MAIN_FILE),
+				Version::fromString(espresso_version()),
+			)
+		);
+		if ($domain->isCaffeinated()) {
+			require_once EE_CAFF_PATH . 'brewing_regular.php';
+		}
+	}
+
+
+	/**
+	 * register_shortcodes_modules_and_widgets
+	 * generate lists of shortcodes and modules, then verify paths and classes
+	 * This is hooked into 'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets'
+	 * which runs during the WP 'plugins_loaded' action at priority 7
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function register_shortcodes_modules_and_widgets()
+	{
+		if ($this->request->isFrontend() || $this->request->isIframe()) {
+			try {
+				// load, register, and add shortcodes the new way
+				$this->loader->getShared(
+					'EventEspresso\core\services\shortcodes\ShortcodesManager',
+					array(
+						// and the old way, but we'll put it under control of the new system
+						EE_Config::getLegacyShortcodesManager(),
+					)
+				);
+			} catch (Exception $exception) {
+				new ExceptionStackTraceDisplay($exception);
+			}
+		}
+		do_action('AHEE__EE_System__register_shortcodes_modules_and_widgets');
+		// check for addons using old hook point
+		if (has_action('AHEE__EE_System__register_shortcodes_modules_and_addons')) {
+			$this->_incompatible_addon_error();
+		}
+	}
+
+
+	/**
+	 * _incompatible_addon_error
+	 *
+	 * @access public
+	 * @return void
+	 */
+	private function _incompatible_addon_error()
+	{
+		// get array of classes hooking into here
+		$class_names = EEH_Class_Tools::get_class_names_for_all_callbacks_on_hook(
+			'AHEE__EE_System__register_shortcodes_modules_and_addons'
+		);
+		if (! empty($class_names)) {
+			$msg = __(
+				'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
+				'event_espresso'
+			);
+			$msg .= '<ul>';
+			foreach ($class_names as $class_name) {
+				$msg .= '<li><b>Event Espresso - '
+						. str_replace(
+							array('EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'),
+							'',
+							$class_name
+						) . '</b></li>';
+			}
+			$msg .= '</ul>';
+			$msg .= __(
+				'Compatibility issues can be avoided and/or resolved by keeping addons and plugins updated to the latest version.',
+				'event_espresso'
+			);
+			// save list of incompatible addons to wp-options for later use
+			add_option('ee_incompatible_addons', $class_names, '', 'no');
+			if (is_admin()) {
+				EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+			}
+		}
+	}
+
+
+	/**
+	 * brew_espresso
+	 * begins the process of setting hooks for initializing EE in the correct order
+	 * This is happening on the 'AHEE__EE_Bootstrap__brew_espresso' hook point
+	 * which runs during the WP 'plugins_loaded' action at priority 9
+	 *
+	 * @return void
+	 */
+	public function brew_espresso()
+	{
+		do_action('AHEE__EE_System__brew_espresso__begin', $this);
+		// load some final core systems
+		add_action('init', array($this, 'set_hooks_for_core'), 1);
+		add_action('init', array($this, 'perform_activations_upgrades_and_migrations'), 3);
+		add_action('init', array($this, 'load_CPTs_and_session'), 5);
+		add_action('init', array($this, 'load_controllers'), 7);
+		add_action('init', array($this, 'core_loaded_and_ready'), 9);
+		add_action('init', array($this, 'initialize'), 10);
+		add_action('init', array($this, 'initialize_last'), 100);
+		if (is_admin() && apply_filters('FHEE__EE_System__brew_espresso__load_pue', true)) {
+			// pew pew pew
+			$this->loader->getShared('EventEspresso\core\services\licensing\LicenseService');
+			do_action('AHEE__EE_System__brew_espresso__after_pue_init');
+		}
+		do_action('AHEE__EE_System__brew_espresso__complete', $this);
+	}
+
+
+	/**
+	 *    set_hooks_for_core
+	 *
+	 * @access public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function set_hooks_for_core()
+	{
+		$this->_deactivate_incompatible_addons();
+		do_action('AHEE__EE_System__set_hooks_for_core');
+		$this->loader->getShared('EventEspresso\core\domain\values\session\SessionLifespan');
+		// caps need to be initialized on every request so that capability maps are set.
+		// @see https://events.codebasehq.com/projects/event-espresso/tickets/8674
+		$this->registry->CAP->init_caps();
+	}
+
+
+	/**
+	 * Using the information gathered in EE_System::_incompatible_addon_error,
+	 * deactivates any addons considered incompatible with the current version of EE
+	 */
+	private function _deactivate_incompatible_addons()
+	{
+		$incompatible_addons = get_option('ee_incompatible_addons', array());
+		if (! empty($incompatible_addons)) {
+			$active_plugins = get_option('active_plugins', array());
+			foreach ($active_plugins as $active_plugin) {
+				foreach ($incompatible_addons as $incompatible_addon) {
+					if (strpos($active_plugin, $incompatible_addon) !== false) {
+						unset($_GET['activate']);
+						espresso_deactivate_plugin($active_plugin);
+					}
+				}
+			}
+		}
+	}
+
+
+	/**
+	 *    perform_activations_upgrades_and_migrations
+	 *
+	 * @access public
+	 * @return    void
+	 */
+	public function perform_activations_upgrades_and_migrations()
+	{
+		do_action('AHEE__EE_System__perform_activations_upgrades_and_migrations');
+	}
+
+
+	/**
+	 * @return void
+	 * @throws DomainException
+	 */
+	public function load_CPTs_and_session()
+	{
+		do_action('AHEE__EE_System__load_CPTs_and_session__start');
+		/** @var EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies $register_custom_taxonomies */
+		$register_custom_taxonomies = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'
+		);
+		$register_custom_taxonomies->registerCustomTaxonomies();
+		/** @var EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes $register_custom_post_types */
+		$register_custom_post_types = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'
+		);
+		$register_custom_post_types->registerCustomPostTypes();
+		/** @var EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomyTerms $register_custom_taxonomy_terms */
+		$register_custom_taxonomy_terms = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomyTerms'
+		);
+		$register_custom_taxonomy_terms->registerCustomTaxonomyTerms();
+		// load legacy Custom Post Types and Taxonomies
+		$this->loader->getShared('EE_Register_CPTs');
+		do_action('AHEE__EE_System__load_CPTs_and_session__complete');
+	}
+
+
+	/**
+	 * load_controllers
+	 * this is the best place to load any additional controllers that needs access to EE core.
+	 * it is expected that all basic core EE systems, that are not dependant on the current request are loaded at this
+	 * time
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function load_controllers()
+	{
+		do_action('AHEE__EE_System__load_controllers__start');
+		// let's get it started
+		if (! $this->maintenance_mode->level()
+			&& ($this->request->isFrontend() || $this->request->isFrontAjax())
+		) {
+			do_action('AHEE__EE_System__load_controllers__load_front_controllers');
+			$this->loader->getShared('EE_Front_Controller');
+		} elseif ($this->request->isAdmin() || $this->request->isAdminAjax()) {
+			do_action('AHEE__EE_System__load_controllers__load_admin_controllers');
+			$this->loader->getShared('EE_Admin');
+		}
+		do_action('AHEE__EE_System__load_controllers__complete');
+	}
+
+
+	/**
+	 * core_loaded_and_ready
+	 * all of the basic EE core should be loaded at this point and available regardless of M-Mode
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function core_loaded_and_ready()
+	{
+		if ($this->request->isAdmin() || $this->request->isFrontend() || $this->request->isIframe()) {
+			try {
+				$this->loader->getShared('EventEspresso\core\services\assets\Registry');
+				$this->loader->getShared('EventEspresso\core\domain\services\assets\CoreAssetManager');
+			} catch (Exception $exception) {
+				new ExceptionStackTraceDisplay($exception);
+			}
+		}
+		if ($this->request->isAdmin()
+			|| $this->request->isEeAjax()
+			|| $this->request->isFrontend()
+		) {
+			$this->loader->getShared('EE_Session');
+		}
+		do_action('AHEE__EE_System__core_loaded_and_ready');
+		// load_espresso_template_tags
+		if (is_readable(EE_PUBLIC . 'template_tags.php')
+			&& ($this->request->isFrontend() || $this->request->isIframe() || $this->request->isFeed())
+		) {
+			require_once EE_PUBLIC . 'template_tags.php';
+		}
+		do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
+	}
+
+
+	/**
+	 * initialize
+	 * this is the best place to begin initializing client code
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function initialize()
+	{
+		do_action('AHEE__EE_System__initialize');
+	}
+
+
+	/**
+	 * initialize_last
+	 * this is run really late during the WP init hook point, and ensures that mostly everything else that needs to
+	 * initialize has done so
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function initialize_last()
+	{
+		do_action('AHEE__EE_System__initialize_last');
+		/** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
+		$rewrite_rules = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
+		);
+		$rewrite_rules->flushRewriteRules();
+		add_action('admin_bar_init', array($this, 'addEspressoToolbar'));
+		if (($this->request->isAjax() || $this->request->isAdmin())
+			&& $this->maintenance_mode->models_can_query()) {
+			$this->loader->getShared('EventEspresso\core\services\privacy\export\PersonalDataExporterManager');
+			$this->loader->getShared('EventEspresso\core\services\privacy\erasure\PersonalDataEraserManager');
+		}
+	}
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function addEspressoToolbar()
+	{
+		$this->loader->getShared(
+			'EventEspresso\core\domain\services\admin\AdminToolBar',
+			array($this->registry->CAP)
+		);
+	}
+
+
+	/**
+	 * do_not_cache
+	 * sets no cache headers and defines no cache constants for WP plugins
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public static function do_not_cache()
+	{
+		// set no cache constants
+		if (! defined('DONOTCACHEPAGE')) {
+			define('DONOTCACHEPAGE', true);
+		}
+		if (! defined('DONOTCACHCEOBJECT')) {
+			define('DONOTCACHCEOBJECT', true);
+		}
+		if (! defined('DONOTCACHEDB')) {
+			define('DONOTCACHEDB', true);
+		}
+		// add no cache headers
+		add_action('send_headers', array('EE_System', 'nocache_headers'), 10);
+		// plus a little extra for nginx and Google Chrome
+		add_filter('nocache_headers', array('EE_System', 'extra_nocache_headers'), 10, 1);
+		// prevent browsers from prefetching of the rel='next' link, because it may contain content that interferes with the registration process
+		remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
+	}
+
+
+	/**
+	 *    extra_nocache_headers
+	 *
+	 * @access    public
+	 * @param $headers
+	 * @return    array
+	 */
+	public static function extra_nocache_headers($headers)
+	{
+		// for NGINX
+		$headers['X-Accel-Expires'] = 0;
+		// plus extra for Google Chrome since it doesn't seem to respect "no-cache", but WILL respect "no-store"
+		$headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0';
+		return $headers;
+	}
+
+
+	/**
+	 *    nocache_headers
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function nocache_headers()
+	{
+		nocache_headers();
+	}
+
+
+	/**
+	 * simply hooks into "wp_list_pages_exclude" filter (for wp_list_pages method) and makes sure EE critical pages are
+	 * never returned with the function.
+	 *
+	 * @param  array $exclude_array any existing pages being excluded are in this array.
+	 * @return array
+	 */
+	public function remove_pages_from_wp_list_pages($exclude_array)
+	{
+		return array_merge($exclude_array, $this->registry->CFG->core->get_critical_pages_array());
+	}
 }

core/domain/services/admin/privacy/policy/privacy_policy.template.php

Indentation +76 added lines, -76 removed lines

@@ -7,10 +7,10 @@ 
 ?>
 <h2><?php esc_html_e('Event Registration Data', 'event_espresso'); ?></h2>
 <p><?php
-    esc_html_e(
-        'We collect information about you during event registration. This information may include but is not limited to:',
-        'event_espresso'
-    ); ?></p>
+	esc_html_e(
+		'We collect information about you during event registration. This information may include but is not limited to:',
+		'event_espresso'
+	); ?></p>
 <ul>
     <li><?php esc_html_e('Your names', 'event_espresso'); ?></li>
     <li><?php esc_html_e('Billing address', 'event_espresso'); ?></li>
@@ -19,10 +19,10 @@ 
     <li><?php esc_html_e('Phone number', 'event_espresso'); ?></li>
     <li><?php esc_html_e('Location and traffic data (including partial IP address and browser type)', 'event_espresso'); ?></li>
     <li><?php
-        esc_html_e(
-            'Any other details that might be requested from you for the purpose of processing your registration or ticket purchase',
-            'event_espresso'
-        ); ?></li>
+		esc_html_e(
+			'Any other details that might be requested from you for the purpose of processing your registration or ticket purchase',
+			'event_espresso'
+		); ?></li>
 </ul>
 
 <p><?php esc_html_e('Handling this data also allows us to:', 'event_espresso'); ?></p>
@@ -30,102 +30,102 @@ 
     <li><?php esc_html_e('Send you important account/purchase/service information.', 'event_espresso'); ?></li>
     <li><?php esc_html_e('Respond to your queries, refund requests, or complaints.', 'event_espresso'); ?></li>
     <li><?php
-        esc_html_e(
-            'Process payments and prevent fraudulent transactions. We do this on the basis of our legitimate business interests.',
-            'event_espresso'
-        ); ?></li>
+		esc_html_e(
+			'Process payments and prevent fraudulent transactions. We do this on the basis of our legitimate business interests.',
+			'event_espresso'
+		); ?></li>
     <li><?php
-        esc_html_e(
-            'Set up and administer your account, provide technical and customer support, and to verify your identity.',
-            'event_espresso'
-        ); ?></li>
+		esc_html_e(
+			'Set up and administer your account, provide technical and customer support, and to verify your identity.',
+			'event_espresso'
+		); ?></li>
 </ul>
 
 <?php if (! empty($active_onsite_payment_methods) || ! empty($active_offsite_payment_methods)) { ?>
     <h2><?php esc_html_e('Billing Information', 'event_espresso'); ?> </h2>
     <?php
 // if onsite or offsite payment methods are active
-    if (! empty($active_onsite_payment_methods)) { ?>
+	if (! empty($active_onsite_payment_methods)) { ?>
         <p><?php
-            esc_html_e(
-                'In order to process payments, we collect billing information on-site. Sensitive billing information is not stored on our server, but may be handled while in-transit to the payment processing server.',
-                'event_espresso'
-            ); ?></p>
+			esc_html_e(
+				'In order to process payments, we collect billing information on-site. Sensitive billing information is not stored on our server, but may be handled while in-transit to the payment processing server.',
+				'event_espresso'
+			); ?></p>
         <p><?php
-            printf(
-                esc_html_x(
-                    'Please see the privacy policy of %1$s.',
-                    'Please see the privacy policy of PayPal Pro',
-                    'event_espresso'
-                ),
-                implode(
-                    ', ',
-                    array_merge(
-                        $active_onsite_payment_methods,
-                        $active_offsite_payment_methods
-                    )
-                )
-            ); ?></p>
+			printf(
+				esc_html_x(
+					'Please see the privacy policy of %1$s.',
+					'Please see the privacy policy of PayPal Pro',
+					'event_espresso'
+				),
+				implode(
+					', ',
+					array_merge(
+						$active_onsite_payment_methods,
+						$active_offsite_payment_methods
+					)
+				)
+			); ?></p>
         <p><?php
-            esc_html_e(
-                'Masked billing information may be stored on our servers (eg only the last 4 digits of credit card numbers are stored: **** **** **** 1234).',
-                'event_espresso'
-            ); ?></p>
+			esc_html_e(
+				'Masked billing information may be stored on our servers (eg only the last 4 digits of credit card numbers are stored: **** **** **** 1234).',
+				'event_espresso'
+			); ?></p>
     <?php } // IF OFFSITE PAYMENT METHOD ACTIVE
-    elseif (! empty($active_offsite_payment_methods)) { ?>
+	elseif (! empty($active_offsite_payment_methods)) { ?>
         <p><?php
-            printf(
-                esc_html_x(
-                    'Billing information is sent directly to the payment processor, and is not handled by our servers. Please see the privacy policy of %1$s.',
-                    'Billing information is sent directly to the payment processor, and is not handled by our servers. Please see the privacy policy of PayPal Pro.',
-                    'event_espresso'
-                ),
-                implode(', ', $active_offsite_payment_methods)
-            ); ?></p>
+			printf(
+				esc_html_x(
+					'Billing information is sent directly to the payment processor, and is not handled by our servers. Please see the privacy policy of %1$s.',
+					'Billing information is sent directly to the payment processor, and is not handled by our servers. Please see the privacy policy of PayPal Pro.',
+					'event_espresso'
+				),
+				implode(', ', $active_offsite_payment_methods)
+			); ?></p>
     <?php } ?>
     <h2><?php esc_html_e('Payment Logging', 'event_espresso'); ?></h2>
     <p><?php
-        esc_html_e(
-            'Site administrators may keep a log of communications with the payment processors in order to verify payments are being processed correctly. These logs are automatically deleted after a week.',
-            'event_espresso'
-        ); ?></p>
+		esc_html_e(
+			'Site administrators may keep a log of communications with the payment processors in order to verify payments are being processed correctly. These logs are automatically deleted after a week.',
+			'event_espresso'
+		); ?></p>
 <?php } ?>
 
 <h2><?php esc_html_e('Event Registration Cookies', 'event_espresso'); ?></h2>
 <p><?php
-    printf(
-        esc_html_x(
-            'When you begin registering for an event and select a ticket quantity, a cookie will be used to track your registration. This cookie lasts %1$s.',
-            'When you begin registering for an event and select a ticket quantity, a cookie will be used to track your registration. This cookie lasts 2 hours.',
-            'event_espresso'
-        ),
-        $session_lifespan
-    ); ?></p>
+	printf(
+		esc_html_x(
+			'When you begin registering for an event and select a ticket quantity, a cookie will be used to track your registration. This cookie lasts %1$s.',
+			'When you begin registering for an event and select a ticket quantity, a cookie will be used to track your registration. This cookie lasts 2 hours.',
+			'event_espresso'
+		),
+		$session_lifespan
+	); ?></p>
 
 <h2><?php esc_html_e('Email History Data', 'event_espresso'); ?></h2>
 <p><?php
-    esc_html_e(
-        'We keep a record of the emails sent to you. This is to ensure communication is successfully sent and its information is accurate.',
-        'event_espresso'
-    ); ?></p>
+	esc_html_e(
+		'We keep a record of the emails sent to you. This is to ensure communication is successfully sent and its information is accurate.',
+		'event_espresso'
+	); ?></p>
 
 <h2><?php esc_html_e('Event Check-In Record', 'event_espresso'); ?></h2>
 <p><?php
-    esc_html_e(
-        'When you attend an event, an event manager may record the time you check in or out of the event.',
-        'event_espresso'
-    ); ?></p>
+	esc_html_e(
+		'When you attend an event, an event manager may record the time you check in or out of the event.',
+		'event_espresso'
+	); ?></p>
 
 <h2><?php esc_html_e('Event Registration Data Retention', 'event_espresso'); ?></h2>
 <p><?php
-    esc_html_e(
-        'Personal data is stored at least until the date of the event, and may be kept indefinitely in case of future registrations.',
-        'event_espresso'
-    ); ?></p>
+	esc_html_e(
+		'Personal data is stored at least until the date of the event, and may be kept indefinitely in case of future registrations.',
+		'event_espresso'
+	); ?></p>
 
 <h2><?php esc_html_e('Event Registration Data Erasure and Export', 'event_espresso'); ?></h2>
 <p><?php
-    esc_html_e(
-        'You have the right to request your personal data be sent to you electronically, and the right to request your registration data be erased after the event. To do so, please contact the event manager or site administrator.',
-        'event_espresso'
-    ); ?></p>
+	esc_html_e(
+		'You have the right to request your personal data be sent to you electronically, and the right to request your registration data be erased after the event. To do so, please contact the event manager or site administrator.',
+		'event_espresso'
+	); ?></p>

Spacing +3 added lines, -3 removed lines

@@ -41,11 +41,11 @@ 
         ); ?></li>
 </ul>
 
-<?php if (! empty($active_onsite_payment_methods) || ! empty($active_offsite_payment_methods)) { ?>
+<?php if ( ! empty($active_onsite_payment_methods) || ! empty($active_offsite_payment_methods)) { ?>
     <h2><?php esc_html_e('Billing Information', 'event_espresso'); ?> </h2>
     <?php
 // if onsite or offsite payment methods are active
-    if (! empty($active_onsite_payment_methods)) { ?>
+    if ( ! empty($active_onsite_payment_methods)) { ?>
         <p><?php
             esc_html_e(
                 'In order to process payments, we collect billing information on-site. Sensitive billing information is not stored on our server, but may be handled while in-transit to the payment processing server.',
@@ -72,7 +72,7 @@ 
                 'event_espresso'
             ); ?></p>
     <?php } // IF OFFSITE PAYMENT METHOD ACTIVE
-    elseif (! empty($active_offsite_payment_methods)) { ?>
+    elseif ( ! empty($active_offsite_payment_methods)) { ?>
         <p><?php
             printf(
                 esc_html_x(

admin_pages/registrations/Registrations_Admin_Page.core.php

Indentation +3824 added lines, -3824 removed lines

@@ -19,2399 +19,2399 @@ 
 class Registrations_Admin_Page extends EE_Admin_Page_CPT
 {
 
-    /**
-     * @var EE_Registration
-     */
-    private $_registration;
-
-    /**
-     * @var EE_Event
-     */
-    private $_reg_event;
-
-    /**
-     * @var EE_Session
-     */
-    private $_session;
-
-    private static $_reg_status;
-
-    /**
-     * Form for displaying the custom questions for this registration.
-     * This gets used a few times throughout the request so its best to cache it
-     *
-     * @var EE_Registration_Custom_Questions_Form
-     */
-    protected $_reg_custom_questions_form = null;
-
-
-    /**
-     *        constructor
-     *
-     * @Constructor
-     * @access public
-     * @param bool $routing
-     * @return Registrations_Admin_Page
-     */
-    public function __construct($routing = true)
-    {
-        parent::__construct($routing);
-        add_action('wp_loaded', array($this, 'wp_loaded'));
-    }
-
-
-    public function wp_loaded()
-    {
-        // when adding a new registration...
-        if (isset($this->_req_data['action']) && $this->_req_data['action'] === 'new_registration') {
-            EE_System::do_not_cache();
-            if (! isset($this->_req_data['processing_registration'])
-                || absint($this->_req_data['processing_registration']) !== 1
-            ) {
-                // and it's NOT the attendee information reg step
-                // force cookie expiration by setting time to last week
-                setcookie('ee_registration_added', 0, time() - WEEK_IN_SECONDS, '/');
-                // and update the global
-                $_COOKIE['ee_registration_added'] = 0;
-            }
-        }
-    }
-
-
-    protected function _init_page_props()
-    {
-        $this->page_slug = REG_PG_SLUG;
-        $this->_admin_base_url = REG_ADMIN_URL;
-        $this->_admin_base_path = REG_ADMIN;
-        $this->page_label = esc_html__('Registrations', 'event_espresso');
-        $this->_cpt_routes = array(
-            'add_new_attendee' => 'espresso_attendees',
-            'edit_attendee'    => 'espresso_attendees',
-            'insert_attendee'  => 'espresso_attendees',
-            'update_attendee'  => 'espresso_attendees',
-        );
-        $this->_cpt_model_names = array(
-            'add_new_attendee' => 'EEM_Attendee',
-            'edit_attendee'    => 'EEM_Attendee',
-        );
-        $this->_cpt_edit_routes = array(
-            'espresso_attendees' => 'edit_attendee',
-        );
-        $this->_pagenow_map = array(
-            'add_new_attendee' => 'post-new.php',
-            'edit_attendee'    => 'post.php',
-            'trash'            => 'post.php',
-        );
-        add_action('edit_form_after_title', array($this, 'after_title_form_fields'), 10);
-        // add filters so that the comment urls don't take users to a confusing 404 page
-        add_filter('get_comment_link', array($this, 'clear_comment_link'), 10, 3);
-    }
-
-
-    public function clear_comment_link($link, $comment, $args)
-    {
-        // gotta make sure this only happens on this route
-        $post_type = get_post_type($comment->comment_post_ID);
-        if ($post_type === 'espresso_attendees') {
-            return '#commentsdiv';
-        }
-        return $link;
-    }
-
-
-    protected function _ajax_hooks()
-    {
-        // todo: all hooks for registrations ajax goes in here
-        add_action('wp_ajax_toggle_checkin_status', array($this, 'toggle_checkin_status'));
-    }
-
-
-    protected function _define_page_props()
-    {
-        $this->_admin_page_title = $this->page_label;
-        $this->_labels = array(
-            'buttons'                      => array(
-                'add-registrant'      => esc_html__('Add New Registration', 'event_espresso'),
-                'add-attendee'        => esc_html__('Add Contact', 'event_espresso'),
-                'edit'                => esc_html__('Edit Contact', 'event_espresso'),
-                'report'              => esc_html__("Event Registrations CSV Report", "event_espresso"),
-                'report_all'          => esc_html__('All Registrations CSV Report', 'event_espresso'),
-                'report_filtered'     => esc_html__('Filtered CSV Report', 'event_espresso'),
-                'contact_list_report' => esc_html__('Contact List Report', 'event_espresso'),
-                'contact_list_export' => esc_html__("Export Data", "event_espresso"),
-            ),
-            'publishbox'                   => array(
-                'add_new_attendee' => esc_html__("Add Contact Record", 'event_espresso'),
-                'edit_attendee'    => esc_html__("Update Contact Record", 'event_espresso'),
-            ),
-            'hide_add_button_on_cpt_route' => array(
-                'edit_attendee' => true,
-            ),
-        );
-    }
-
-
-    /**
-     *        grab url requests and route them
-     *
-     * @access private
-     * @return void
-     */
-    public function _set_page_routes()
-    {
-        $this->_get_registration_status_array();
-        $reg_id = ! empty($this->_req_data['_REG_ID']) && ! is_array($this->_req_data['_REG_ID'])
-            ? $this->_req_data['_REG_ID'] : 0;
-        $reg_id = empty($reg_id) && ! empty($this->_req_data['reg_status_change_form']['REG_ID'])
-            ? $this->_req_data['reg_status_change_form']['REG_ID']
-            : $reg_id;
-        $att_id = ! empty($this->_req_data['ATT_ID']) && ! is_array($this->_req_data['ATT_ID'])
-            ? $this->_req_data['ATT_ID'] : 0;
-        $att_id = ! empty($this->_req_data['post']) && ! is_array($this->_req_data['post'])
-            ? $this->_req_data['post']
-            : $att_id;
-        $this->_page_routes = array(
-            'default'                             => array(
-                'func'       => '_registrations_overview_list_table',
-                'capability' => 'ee_read_registrations',
-            ),
-            'view_registration'                   => array(
-                'func'       => '_registration_details',
-                'capability' => 'ee_read_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'edit_registration'                   => array(
-                'func'               => '_update_attendee_registration_form',
-                'noheader'           => true,
-                'headers_sent_route' => 'view_registration',
-                'capability'         => 'ee_edit_registration',
-                'obj_id'             => $reg_id,
-                '_REG_ID'            => $reg_id,
-            ),
-            'trash_registrations'                 => array(
-                'func'       => '_trash_or_restore_registrations',
-                'args'       => array('trash' => true),
-                'noheader'   => true,
-                'capability' => 'ee_delete_registrations',
-            ),
-            'restore_registrations'               => array(
-                'func'       => '_trash_or_restore_registrations',
-                'args'       => array('trash' => false),
-                'noheader'   => true,
-                'capability' => 'ee_delete_registrations',
-            ),
-            'delete_registrations'                => array(
-                'func'       => '_delete_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_delete_registrations',
-            ),
-            'new_registration'                    => array(
-                'func'       => 'new_registration',
-                'capability' => 'ee_edit_registrations',
-            ),
-            'process_reg_step'                    => array(
-                'func'       => 'process_reg_step',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-            ),
-            'redirect_to_txn'                     => array(
-                'func'       => 'redirect_to_txn',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-            ),
-            'change_reg_status'                   => array(
-                'func'       => '_change_reg_status',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'approve_registration'                => array(
-                'func'       => 'approve_registration',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'approve_and_notify_registration'     => array(
-                'func'       => 'approve_registration',
-                'noheader'   => true,
-                'args'       => array(true),
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'approve_registrations'               => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('approve'),
-            ),
-            'approve_and_notify_registrations'    => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('approve', true),
-            ),
-            'decline_registration'                => array(
-                'func'       => 'decline_registration',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'decline_and_notify_registration'     => array(
-                'func'       => 'decline_registration',
-                'noheader'   => true,
-                'args'       => array(true),
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'decline_registrations'               => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('decline'),
-            ),
-            'decline_and_notify_registrations'    => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('decline', true),
-            ),
-            'pending_registration'                => array(
-                'func'       => 'pending_registration',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'pending_and_notify_registration'     => array(
-                'func'       => 'pending_registration',
-                'noheader'   => true,
-                'args'       => array(true),
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'pending_registrations'               => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('pending'),
-            ),
-            'pending_and_notify_registrations'    => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('pending', true),
-            ),
-            'no_approve_registration'             => array(
-                'func'       => 'not_approve_registration',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'no_approve_and_notify_registration'  => array(
-                'func'       => 'not_approve_registration',
-                'noheader'   => true,
-                'args'       => array(true),
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'no_approve_registrations'            => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('not_approve'),
-            ),
-            'no_approve_and_notify_registrations' => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('not_approve', true),
-            ),
-            'cancel_registration'                 => array(
-                'func'       => 'cancel_registration',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'cancel_and_notify_registration'      => array(
-                'func'       => 'cancel_registration',
-                'noheader'   => true,
-                'args'       => array(true),
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'cancel_registrations'                => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('cancel'),
-            ),
-            'cancel_and_notify_registrations'     => array(
-                'func'       => 'bulk_action_on_registrations',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registrations',
-                'args'       => array('cancel', true),
-            ),
-            'wait_list_registration'              => array(
-                'func'       => 'wait_list_registration',
-                'noheader'   => true,
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'wait_list_and_notify_registration'   => array(
-                'func'       => 'wait_list_registration',
-                'noheader'   => true,
-                'args'       => array(true),
-                'capability' => 'ee_edit_registration',
-                'obj_id'     => $reg_id,
-            ),
-            'contact_list'                        => array(
-                'func'       => '_attendee_contact_list_table',
-                'capability' => 'ee_read_contacts',
-            ),
-            'add_new_attendee'                    => array(
-                'func' => '_create_new_cpt_item',
-                'args' => array(
-                    'new_attendee' => true,
-                    'capability'   => 'ee_edit_contacts',
-                ),
-            ),
-            'edit_attendee'                       => array(
-                'func'       => '_edit_cpt_item',
-                'capability' => 'ee_edit_contacts',
-                'obj_id'     => $att_id,
-            ),
-            'duplicate_attendee'                  => array(
-                'func'       => '_duplicate_attendee',
-                'noheader'   => true,
-                'capability' => 'ee_edit_contacts',
-                'obj_id'     => $att_id,
-            ),
-            'insert_attendee'                     => array(
-                'func'       => '_insert_or_update_attendee',
-                'args'       => array(
-                    'new_attendee' => true,
-                ),
-                'noheader'   => true,
-                'capability' => 'ee_edit_contacts',
-            ),
-            'update_attendee'                     => array(
-                'func'       => '_insert_or_update_attendee',
-                'args'       => array(
-                    'new_attendee' => false,
-                ),
-                'noheader'   => true,
-                'capability' => 'ee_edit_contacts',
-                'obj_id'     => $att_id,
-            ),
-            'trash_attendees'                     => array(
-                'func'       => '_trash_or_restore_attendees',
-                'args'       => array(
-                    'trash' => 'true',
-                ),
-                'noheader'   => true,
-                'capability' => 'ee_delete_contacts',
-            ),
-            'trash_attendee'                      => array(
-                'func'       => '_trash_or_restore_attendees',
-                'args'       => array(
-                    'trash' => true,
-                ),
-                'noheader'   => true,
-                'capability' => 'ee_delete_contacts',
-                'obj_id'     => $att_id,
-            ),
-            'restore_attendees'                   => array(
-                'func'       => '_trash_or_restore_attendees',
-                'args'       => array(
-                    'trash' => false,
-                ),
-                'noheader'   => true,
-                'capability' => 'ee_delete_contacts',
-                'obj_id'     => $att_id,
-            ),
-            'resend_registration'                 => array(
-                'func'       => '_resend_registration',
-                'noheader'   => true,
-                'capability' => 'ee_send_message',
-            ),
-            'registrations_report'                => array(
-                'func'       => '_registrations_report',
-                'noheader'   => true,
-                'capability' => 'ee_read_registrations',
-            ),
-            'contact_list_export'                 => array(
-                'func'       => '_contact_list_export',
-                'noheader'   => true,
-                'capability' => 'export',
-            ),
-            'contact_list_report'                 => array(
-                'func'       => '_contact_list_report',
-                'noheader'   => true,
-                'capability' => 'ee_read_contacts',
-            ),
-        );
-    }
-
-
-    protected function _set_page_config()
-    {
-        $this->_page_config = array(
-            'default'           => array(
-                'nav'           => array(
-                    'label' => esc_html__('Overview', 'event_espresso'),
-                    'order' => 5,
-                ),
-                'help_tabs'     => array(
-                    'registrations_overview_help_tab'                       => array(
-                        'title'    => esc_html__('Registrations Overview', 'event_espresso'),
-                        'filename' => 'registrations_overview',
-                    ),
-                    'registrations_overview_table_column_headings_help_tab' => array(
-                        'title'    => esc_html__('Registrations Table Column Headings', 'event_espresso'),
-                        'filename' => 'registrations_overview_table_column_headings',
-                    ),
-                    'registrations_overview_filters_help_tab'               => array(
-                        'title'    => esc_html__('Registration Filters', 'event_espresso'),
-                        'filename' => 'registrations_overview_filters',
-                    ),
-                    'registrations_overview_views_help_tab'                 => array(
-                        'title'    => esc_html__('Registration Views', 'event_espresso'),
-                        'filename' => 'registrations_overview_views',
-                    ),
-                    'registrations_regoverview_other_help_tab'              => array(
-                        'title'    => esc_html__('Registrations Other', 'event_espresso'),
-                        'filename' => 'registrations_overview_other',
-                    ),
-                ),
-                'help_tour'     => array('Registration_Overview_Help_Tour'),
-                'qtips'         => array('Registration_List_Table_Tips'),
-                'list_table'    => 'EE_Registrations_List_Table',
-                'require_nonce' => false,
-            ),
-            'view_registration' => array(
-                'nav'           => array(
-                    'label'      => esc_html__('REG Details', 'event_espresso'),
-                    'order'      => 15,
-                    'url'        => isset($this->_req_data['_REG_ID'])
-                        ? add_query_arg(array('_REG_ID' => $this->_req_data['_REG_ID']), $this->_current_page_view_url)
-                        : $this->_admin_base_url,
-                    'persistent' => false,
-                ),
-                'help_tabs'     => array(
-                    'registrations_details_help_tab'                    => array(
-                        'title'    => esc_html__('Registration Details', 'event_espresso'),
-                        'filename' => 'registrations_details',
-                    ),
-                    'registrations_details_table_help_tab'              => array(
-                        'title'    => esc_html__('Registration Details Table', 'event_espresso'),
-                        'filename' => 'registrations_details_table',
-                    ),
-                    'registrations_details_form_answers_help_tab'       => array(
-                        'title'    => esc_html__('Registration Form Answers', 'event_espresso'),
-                        'filename' => 'registrations_details_form_answers',
-                    ),
-                    'registrations_details_registrant_details_help_tab' => array(
-                        'title'    => esc_html__('Contact Details', 'event_espresso'),
-                        'filename' => 'registrations_details_registrant_details',
-                    ),
-                ),
-                'help_tour'     => array('Registration_Details_Help_Tour'),
-                'metaboxes'     => array_merge(
-                    $this->_default_espresso_metaboxes,
-                    array('_registration_details_metaboxes')
-                ),
-                'require_nonce' => false,
-            ),
-            'new_registration'  => array(
-                'nav'           => array(
-                    'label'      => esc_html__('Add New Registration', 'event_espresso'),
-                    'url'        => '#',
-                    'order'      => 15,
-                    'persistent' => false,
-                ),
-                'metaboxes'     => $this->_default_espresso_metaboxes,
-                'labels'        => array(
-                    'publishbox' => esc_html__('Save Registration', 'event_espresso'),
-                ),
-                'require_nonce' => false,
-            ),
-            'add_new_attendee'  => array(
-                'nav'           => array(
-                    'label'      => esc_html__('Add Contact', 'event_espresso'),
-                    'order'      => 15,
-                    'persistent' => false,
-                ),
-                'metaboxes'     => array_merge(
-                    $this->_default_espresso_metaboxes,
-                    array('_publish_post_box', 'attendee_editor_metaboxes')
-                ),
-                'require_nonce' => false,
-            ),
-            'edit_attendee'     => array(
-                'nav'           => array(
-                    'label'      => esc_html__('Edit Contact', 'event_espresso'),
-                    'order'      => 15,
-                    'persistent' => false,
-                    'url'        => isset($this->_req_data['ATT_ID'])
-                        ? add_query_arg(array('ATT_ID' => $this->_req_data['ATT_ID']), $this->_current_page_view_url)
-                        : $this->_admin_base_url,
-                ),
-                'metaboxes'     => array('attendee_editor_metaboxes'),
-                'require_nonce' => false,
-            ),
-            'contact_list'      => array(
-                'nav'           => array(
-                    'label' => esc_html__('Contact List', 'event_espresso'),
-                    'order' => 20,
-                ),
-                'list_table'    => 'EE_Attendee_Contact_List_Table',
-                'help_tabs'     => array(
-                    'registrations_contact_list_help_tab'                       => array(
-                        'title'    => esc_html__('Registrations Contact List', 'event_espresso'),
-                        'filename' => 'registrations_contact_list',
-                    ),
-                    'registrations_contact-list_table_column_headings_help_tab' => array(
-                        'title'    => esc_html__('Contact List Table Column Headings', 'event_espresso'),
-                        'filename' => 'registrations_contact_list_table_column_headings',
-                    ),
-                    'registrations_contact_list_views_help_tab'                 => array(
-                        'title'    => esc_html__('Contact List Views', 'event_espresso'),
-                        'filename' => 'registrations_contact_list_views',
-                    ),
-                    'registrations_contact_list_other_help_tab'                 => array(
-                        'title'    => esc_html__('Contact List Other', 'event_espresso'),
-                        'filename' => 'registrations_contact_list_other',
-                    ),
-                ),
-                'help_tour'     => array('Contact_List_Help_Tour'),
-                'metaboxes'     => array(),
-                'require_nonce' => false,
-            ),
-            // override default cpt routes
-            'create_new'        => '',
-            'edit'              => '',
-        );
-    }
-
-
-    /**
-     * The below methods aren't used by this class currently
-     */
-    protected function _add_screen_options()
-    {
-    }
-
-
-    protected function _add_feature_pointers()
-    {
-    }
-
-
-    public function admin_init()
-    {
-        EE_Registry::$i18n_js_strings['update_att_qstns'] = esc_html__(
-            'click "Update Registration Questions" to save your changes',
-            'event_espresso'
-        );
-    }
-
-
-    public function admin_notices()
-    {
-    }
-
-
-    public function admin_footer_scripts()
-    {
-    }
-
-
-    /**
-     *        get list of registration statuses
-     *
-     * @access private
-     * @return void
-     * @throws EE_Error
-     */
-    private function _get_registration_status_array()
-    {
-        self::$_reg_status = EEM_Registration::reg_status_array(array(), true);
-    }
-
-
-    protected function _add_screen_options_default()
-    {
-        $this->_per_page_screen_option();
-    }
-
-
-    protected function _add_screen_options_contact_list()
-    {
-        $page_title = $this->_admin_page_title;
-        $this->_admin_page_title = esc_html__("Contacts", 'event_espresso');
-        $this->_per_page_screen_option();
-        $this->_admin_page_title = $page_title;
-    }
-
-
-    public function load_scripts_styles()
-    {
-        // style
-        wp_register_style(
-            'espresso_reg',
-            REG_ASSETS_URL . 'espresso_registrations_admin.css',
-            array('ee-admin-css'),
-            EVENT_ESPRESSO_VERSION
-        );
-        wp_enqueue_style('espresso_reg');
-        // script
-        wp_register_script(
-            'espresso_reg',
-            REG_ASSETS_URL . 'espresso_registrations_admin.js',
-            array('jquery-ui-datepicker', 'jquery-ui-draggable', 'ee_admin_js'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_enqueue_script('espresso_reg');
-    }
-
-
-    public function load_scripts_styles_edit_attendee()
-    {
-        // stuff to only show up on our attendee edit details page.
-        $attendee_details_translations = array(
-            'att_publish_text' => sprintf(
-                esc_html__('Created on: <b>%1$s</b>', 'event_espresso'),
-                $this->_cpt_model_obj->get_datetime('ATT_created')
-            ),
-        );
-        wp_localize_script('espresso_reg', 'ATTENDEE_DETAILS', $attendee_details_translations);
-        wp_enqueue_script('jquery-validate');
-    }
-
-
-    public function load_scripts_styles_view_registration()
-    {
-        // styles
-        wp_enqueue_style('espresso-ui-theme');
-        // scripts
-        $this->_get_reg_custom_questions_form($this->_registration->ID());
-        $this->_reg_custom_questions_form->wp_enqueue_scripts(true);
-    }
-
-
-    public function load_scripts_styles_contact_list()
-    {
-        wp_dequeue_style('espresso_reg');
-        wp_register_style(
-            'espresso_att',
-            REG_ASSETS_URL . 'espresso_attendees_admin.css',
-            array('ee-admin-css'),
-            EVENT_ESPRESSO_VERSION
-        );
-        wp_enqueue_style('espresso_att');
-    }
-
-
-    public function load_scripts_styles_new_registration()
-    {
-        wp_register_script(
-            'ee-spco-for-admin',
-            REG_ASSETS_URL . 'spco_for_admin.js',
-            array('underscore', 'jquery'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_enqueue_script('ee-spco-for-admin');
-        add_filter('FHEE__EED_Ticket_Selector__load_tckt_slctr_assets', '__return_true');
-        EE_Form_Section_Proper::wp_enqueue_scripts();
-        EED_Ticket_Selector::load_tckt_slctr_assets();
-        EE_Datepicker_Input::enqueue_styles_and_scripts();
-    }
-
-
-    public function AHEE__EE_Admin_Page__route_admin_request_resend_registration()
-    {
-        add_filter('FHEE_load_EE_messages', '__return_true');
-    }
-
-
-    public function AHEE__EE_Admin_Page__route_admin_request_approve_registration()
-    {
-        add_filter('FHEE_load_EE_messages', '__return_true');
-    }
-
-
-    protected function _set_list_table_views_default()
-    {
-        // for notification related bulk actions we need to make sure only active messengers have an option.
-        EED_Messages::set_autoloaders();
-        /** @type EE_Message_Resource_Manager $message_resource_manager */
-        $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        $active_mts = $message_resource_manager->list_of_active_message_types();
-        // key= bulk_action_slug, value= message type.
-        $match_array = array(
-            'approve_registrations'    => 'registration',
-            'decline_registrations'    => 'declined_registration',
-            'pending_registrations'    => 'pending_approval',
-            'no_approve_registrations' => 'not_approved_registration',
-            'cancel_registrations'     => 'cancelled_registration',
-        );
-        $can_send = EE_Registry::instance()->CAP->current_user_can(
-            'ee_send_message',
-            'batch_send_messages'
-        );
-        /** setup reg status bulk actions **/
-        $def_reg_status_actions['approve_registrations'] = esc_html__('Approve Registrations', 'event_espresso');
-        if ($can_send && in_array($match_array['approve_registrations'], $active_mts, true)) {
-            $def_reg_status_actions['approve_and_notify_registrations'] = esc_html__(
-                'Approve and Notify Registrations',
-                'event_espresso'
-            );
-        }
-        $def_reg_status_actions['decline_registrations'] = esc_html__('Decline Registrations', 'event_espresso');
-        if ($can_send && in_array($match_array['decline_registrations'], $active_mts, true)) {
-            $def_reg_status_actions['decline_and_notify_registrations'] = esc_html__(
-                'Decline and Notify Registrations',
-                'event_espresso'
-            );
-        }
-        $def_reg_status_actions['pending_registrations'] = esc_html__(
-            'Set Registrations to Pending Payment',
-            'event_espresso'
-        );
-        if ($can_send && in_array($match_array['pending_registrations'], $active_mts, true)) {
-            $def_reg_status_actions['pending_and_notify_registrations'] = esc_html__(
-                'Set Registrations to Pending Payment and Notify',
-                'event_espresso'
-            );
-        }
-        $def_reg_status_actions['no_approve_registrations'] = esc_html__(
-            'Set Registrations to Not Approved',
-            'event_espresso'
-        );
-        if ($can_send && in_array($match_array['no_approve_registrations'], $active_mts, true)) {
-            $def_reg_status_actions['no_approve_and_notify_registrations'] = esc_html__(
-                'Set Registrations to Not Approved and Notify',
-                'event_espresso'
-            );
-        }
-        $def_reg_status_actions['cancel_registrations'] = esc_html__('Cancel Registrations', 'event_espresso');
-        if ($can_send && in_array($match_array['cancel_registrations'], $active_mts, true)) {
-            $def_reg_status_actions['cancel_and_notify_registrations'] = esc_html__(
-                'Cancel Registrations and Notify',
-                'event_espresso'
-            );
-        }
-        $def_reg_status_actions = apply_filters(
-            'FHEE__Registrations_Admin_Page___set_list_table_views_default__def_reg_status_actions_array',
-            $def_reg_status_actions,
-            $active_mts,
-            $can_send
-        );
-
-        $this->_views = array(
-            'all'   => array(
-                'slug'        => 'all',
-                'label'       => esc_html__('View All Registrations', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array_merge(
-                    $def_reg_status_actions,
-                    array(
-                        'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
-                    )
-                ),
-            ),
-            'month' => array(
-                'slug'        => 'month',
-                'label'       => esc_html__('This Month', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array_merge(
-                    $def_reg_status_actions,
-                    array(
-                        'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
-                    )
-                ),
-            ),
-            'today' => array(
-                'slug'        => 'today',
-                'label'       => sprintf(
-                    esc_html__('Today - %s', 'event_espresso'),
-                    date('M d, Y', current_time('timestamp'))
-                ),
-                'count'       => 0,
-                'bulk_action' => array_merge(
-                    $def_reg_status_actions,
-                    array(
-                        'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
-                    )
-                ),
-            ),
-        );
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_delete_registrations',
-            'espresso_registrations_delete_registration'
-        )) {
-            $this->_views['incomplete'] = array(
-                'slug'        => 'incomplete',
-                'label'       => esc_html__('Incomplete', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array(
-                    'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
-                ),
-            );
-            $this->_views['trash'] = array(
-                'slug'        => 'trash',
-                'label'       => esc_html__('Trash', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array(
-                    'restore_registrations' => esc_html__('Restore Registrations', 'event_espresso'),
-                    'delete_registrations'  => esc_html__('Delete Registrations Permanently', 'event_espresso'),
-                ),
-            );
-        }
-    }
-
-
-    protected function _set_list_table_views_contact_list()
-    {
-        $this->_views = array(
-            'in_use' => array(
-                'slug'        => 'in_use',
-                'label'       => esc_html__('In Use', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array(
-                    'trash_attendees' => esc_html__('Move to Trash', 'event_espresso'),
-                ),
-            ),
-        );
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_delete_contacts',
-            'espresso_registrations_trash_attendees'
-        )
-        ) {
-            $this->_views['trash'] = array(
-                'slug'        => 'trash',
-                'label'       => esc_html__('Trash', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array(
-                    'restore_attendees' => esc_html__('Restore from Trash', 'event_espresso'),
-                ),
-            );
-        }
-    }
-
-
-    protected function _registration_legend_items()
-    {
-        $fc_items = array(
-            'star-icon'        => array(
-                'class' => 'dashicons dashicons-star-filled lt-blue-icon ee-icon-size-8',
-                'desc'  => esc_html__('This is the Primary Registrant', 'event_espresso'),
-            ),
-            'view_details'     => array(
-                'class' => 'dashicons dashicons-clipboard',
-                'desc'  => esc_html__('View Registration Details', 'event_espresso'),
-            ),
-            'edit_attendee'    => array(
-                'class' => 'ee-icon ee-icon-user-edit ee-icon-size-16',
-                'desc'  => esc_html__('Edit Contact Details', 'event_espresso'),
-            ),
-            'view_transaction' => array(
-                'class' => 'dashicons dashicons-cart',
-                'desc'  => esc_html__('View Transaction Details', 'event_espresso'),
-            ),
-            'view_invoice'     => array(
-                'class' => 'dashicons dashicons-media-spreadsheet',
-                'desc'  => esc_html__('View Transaction Invoice', 'event_espresso'),
-            ),
-        );
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_send_message',
-            'espresso_registrations_resend_registration'
-        )) {
-            $fc_items['resend_registration'] = array(
-                'class' => 'dashicons dashicons-email-alt',
-                'desc'  => esc_html__('Resend Registration Details', 'event_espresso'),
-            );
-        } else {
-            $fc_items['blank'] = array('class' => 'blank', 'desc' => '');
-        }
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_read_global_messages',
-            'view_filtered_messages'
-        )) {
-            $related_for_icon = EEH_MSG_Template::get_message_action_icon('see_notifications_for');
-            if (isset($related_for_icon['css_class']) && isset($related_for_icon['label'])) {
-                $fc_items['view_related_messages'] = array(
-                    'class' => $related_for_icon['css_class'],
-                    'desc'  => $related_for_icon['label'],
-                );
-            }
-        }
-        $sc_items = array(
-            'approved_status'   => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_approved,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_approved,
-                    false,
-                    'sentence'
-                ),
-            ),
-            'pending_status'    => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_pending_payment,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_pending_payment,
-                    false,
-                    'sentence'
-                ),
-            ),
-            'wait_list'         => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_wait_list,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_wait_list,
-                    false,
-                    'sentence'
-                ),
-            ),
-            'incomplete_status' => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_incomplete,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_incomplete,
-                    false,
-                    'sentence'
-                ),
-            ),
-            'not_approved'      => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_not_approved,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_not_approved,
-                    false,
-                    'sentence'
-                ),
-            ),
-            'declined_status'   => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_declined,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_declined,
-                    false,
-                    'sentence'
-                ),
-            ),
-            'cancelled_status'  => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_cancelled,
-                'desc'  => EEH_Template::pretty_status(
-                    EEM_Registration::status_id_cancelled,
-                    false,
-                    'sentence'
-                ),
-            ),
-        );
-        return array_merge($fc_items, $sc_items);
-    }
-
-
-
-    /***************************************        REGISTRATION OVERVIEW        **************************************/
-    /**
-     * @throws \EE_Error
-     */
-    protected function _registrations_overview_list_table()
-    {
-        $this->_template_args['admin_page_header'] = '';
-        $EVT_ID = ! empty($this->_req_data['event_id'])
-            ? absint($this->_req_data['event_id'])
-            : 0;
-        $ATT_ID = ! empty($this->_req_data['ATT_ID'])
-            ? absint($this->_req_data['ATT_ID'])
-            : 0;
-        if ($ATT_ID) {
-            $attendee = EEM_Attendee::instance()->get_one_by_ID($ATT_ID);
-            if ($attendee instanceof EE_Attendee) {
-                $this->_template_args['admin_page_header'] = sprintf(
-                    esc_html__(
-                        '%1$s Viewing registrations for %2$s%3$s',
-                        'event_espresso'
-                    ),
-                    '<h3 style="line-height:1.5em;">',
-                    '<a href="' . EE_Admin_Page::add_query_args_and_nonce(
-                        array(
-                            'action' => 'edit_attendee',
-                            'post'   => $ATT_ID,
-                        ),
-                        REG_ADMIN_URL
-                    ) . '">' . $attendee->full_name() . '</a>',
-                    '</h3>'
-                );
-            }
-        }
-        if ($EVT_ID) {
-            if (EE_Registry::instance()->CAP->current_user_can(
-                'ee_edit_registrations',
-                'espresso_registrations_new_registration',
-                $EVT_ID
-            )) {
-                $this->_admin_page_title .= ' ' . $this->get_action_link_or_button(
-                    'new_registration',
-                    'add-registrant',
-                    array('event_id' => $EVT_ID),
-                    'add-new-h2'
-                );
-            }
-            $event = EEM_Event::instance()->get_one_by_ID($EVT_ID);
-            if ($event instanceof EE_Event) {
-                $this->_template_args['admin_page_header'] = sprintf(
-                    esc_html__(
-                        '%s Viewing registrations for the event: %s%s',
-                        'event_espresso'
-                    ),
-                    '<h3 style="line-height:1.5em;">',
-                    '<br /><a href="'
-                    . EE_Admin_Page::add_query_args_and_nonce(
-                        array(
-                            'action' => 'edit',
-                            'post'   => $event->ID(),
-                        ),
-                        EVENTS_ADMIN_URL
-                    )
-                    . '">&nbsp;'
-                    . $event->get('EVT_name')
-                    . '&nbsp;</a>&nbsp;',
-                    '</h3>'
-                );
-            }
-            $DTT_ID = ! empty($this->_req_data['datetime_id']) ? absint($this->_req_data['datetime_id']) : 0;
-            $datetime = EEM_Datetime::instance()->get_one_by_ID($DTT_ID);
-            if ($datetime instanceof EE_Datetime && $this->_template_args['admin_page_header'] !== '') {
-                $this->_template_args['admin_page_header'] = substr(
-                    $this->_template_args['admin_page_header'],
-                    0,
-                    -5
-                );
-                $this->_template_args['admin_page_header'] .= ' &nbsp;<span class="drk-grey-text">';
-                $this->_template_args['admin_page_header'] .= '<span class="dashicons dashicons-calendar"></span>';
-                $this->_template_args['admin_page_header'] .= $datetime->name();
-                $this->_template_args['admin_page_header'] .= ' ( ' . $datetime->start_date() . ' )';
-                $this->_template_args['admin_page_header'] .= '</span></h3>';
-            }
-        }
-        $this->_template_args['after_list_table'] = $this->_display_legend($this->_registration_legend_items());
-        $this->display_admin_list_table_page_with_no_sidebar();
-    }
-
-
-    /**
-     * This sets the _registration property for the registration details screen
-     *
-     * @access private
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _set_registration_object()
-    {
-        // get out if we've already set the object
-        if ($this->_registration instanceof EE_Registration) {
-            return true;
-        }
-        $REG = EEM_Registration::instance();
-        $REG_ID = (! empty($this->_req_data['_REG_ID'])) ? absint($this->_req_data['_REG_ID']) : false;
-        if ($this->_registration = $REG->get_one_by_ID($REG_ID)) {
-            return true;
-        } else {
-            $error_msg = sprintf(
-                esc_html__(
-                    'An error occurred and the details for Registration ID #%s could not be retrieved.',
-                    'event_espresso'
-                ),
-                $REG_ID
-            );
-            EE_Error::add_error($error_msg, __FILE__, __FUNCTION__, __LINE__);
-            $this->_registration = null;
-            return false;
-        }
-    }
-
-
-    /**
-     * Used to retrieve registrations for the list table.
-     *
-     * @param int  $per_page
-     * @param bool $count
-     * @param bool $this_month
-     * @param bool $today
-     * @return EE_Registration[]|int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function get_registrations(
-        $per_page = 10,
-        $count = false,
-        $this_month = false,
-        $today = false
-    ) {
-        if ($this_month) {
-            $this->_req_data['status'] = 'month';
-        }
-        if ($today) {
-            $this->_req_data['status'] = 'today';
-        }
-        $query_params = $this->_get_registration_query_parameters($this->_req_data, $per_page, $count);
-        /**
-         * Override the default groupby added by EEM_Base so that sorts with multiple order bys work as expected
-         *
-         * @link https://events.codebasehq.com/projects/event-espresso/tickets/10093
-         * @see  EEM_Base::get_all()
-         */
-        $query_params['group_by'] = '';
-
-        return $count
-            ? EEM_Registration::instance()->count($query_params)
-            /** @type EE_Registration[] */
-            : EEM_Registration::instance()->get_all($query_params);
-    }
-
-
-    /**
-     * Retrieves the query parameters to be used by the Registration model for getting registrations.
-     * Note: this listens to values on the request for some of the query parameters.
-     *
-     * @param array $request
-     * @param int   $per_page
-     * @param bool  $count
-     * @return array
-     * @throws EE_Error
-     */
-    protected function _get_registration_query_parameters(
-        $request = array(),
-        $per_page = 10,
-        $count = false
-    ) {
-
-        $query_params = array(
-            0                          => $this->_get_where_conditions_for_registrations_query(
-                $request
-            ),
-            'caps'                     => EEM_Registration::caps_read_admin,
-            'default_where_conditions' => 'this_model_only',
-        );
-        if (! $count) {
-            $query_params = array_merge(
-                $query_params,
-                $this->_get_orderby_for_registrations_query(),
-                $this->_get_limit($per_page)
-            );
-        }
-
-        return $query_params;
-    }
-
-
-    /**
-     * This will add ATT_ID to the provided $where array for EE model query parameters.
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     */
-    protected function addAttendeeIdToWhereConditions(array $request)
-    {
-        $where = array();
-        if (! empty($request['ATT_ID'])) {
-            $where['ATT_ID'] = absint($request['ATT_ID']);
-        }
-        return $where;
-    }
-
-
-    /**
-     * This will add EVT_ID to the provided $where array for EE model query parameters.
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     */
-    protected function _add_event_id_to_where_conditions(array $request)
-    {
-        $where = array();
-        if (! empty($request['event_id'])) {
-            $where['EVT_ID'] = absint($request['event_id']);
-        }
-        return $where;
-    }
-
-
-    /**
-     * Adds category ID if it exists in the request to the where conditions for the registrations query.
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     */
-    protected function _add_category_id_to_where_conditions(array $request)
-    {
-        $where = array();
-        if (! empty($request['EVT_CAT']) && (int) $request['EVT_CAT'] !== -1) {
-            $where['Event.Term_Taxonomy.term_id'] = absint($request['EVT_CAT']);
-        }
-        return $where;
-    }
-
-
-    /**
-     * Adds the datetime ID if it exists in the request to the where conditions for the registrations query.
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     */
-    protected function _add_datetime_id_to_where_conditions(array $request)
-    {
-        $where = array();
-        if (! empty($request['datetime_id'])) {
-            $where['Ticket.Datetime.DTT_ID'] = absint($request['datetime_id']);
-        }
-        if (! empty($request['DTT_ID'])) {
-            $where['Ticket.Datetime.DTT_ID'] = absint($request['DTT_ID']);
-        }
-        return $where;
-    }
-
-
-    /**
-     * Adds the correct registration status to the where conditions for the registrations query.
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     */
-    protected function _add_registration_status_to_where_conditions(array $request)
-    {
-        $where = array();
-        $view = EEH_Array::is_set($request, 'status', '');
-        $registration_status = ! empty($request['_reg_status'])
-            ? sanitize_text_field($request['_reg_status'])
-            : '';
-
-        /*
+	/**
+	 * @var EE_Registration
+	 */
+	private $_registration;
+
+	/**
+	 * @var EE_Event
+	 */
+	private $_reg_event;
+
+	/**
+	 * @var EE_Session
+	 */
+	private $_session;
+
+	private static $_reg_status;
+
+	/**
+	 * Form for displaying the custom questions for this registration.
+	 * This gets used a few times throughout the request so its best to cache it
+	 *
+	 * @var EE_Registration_Custom_Questions_Form
+	 */
+	protected $_reg_custom_questions_form = null;
+
+
+	/**
+	 *        constructor
+	 *
+	 * @Constructor
+	 * @access public
+	 * @param bool $routing
+	 * @return Registrations_Admin_Page
+	 */
+	public function __construct($routing = true)
+	{
+		parent::__construct($routing);
+		add_action('wp_loaded', array($this, 'wp_loaded'));
+	}
+
+
+	public function wp_loaded()
+	{
+		// when adding a new registration...
+		if (isset($this->_req_data['action']) && $this->_req_data['action'] === 'new_registration') {
+			EE_System::do_not_cache();
+			if (! isset($this->_req_data['processing_registration'])
+				|| absint($this->_req_data['processing_registration']) !== 1
+			) {
+				// and it's NOT the attendee information reg step
+				// force cookie expiration by setting time to last week
+				setcookie('ee_registration_added', 0, time() - WEEK_IN_SECONDS, '/');
+				// and update the global
+				$_COOKIE['ee_registration_added'] = 0;
+			}
+		}
+	}
+
+
+	protected function _init_page_props()
+	{
+		$this->page_slug = REG_PG_SLUG;
+		$this->_admin_base_url = REG_ADMIN_URL;
+		$this->_admin_base_path = REG_ADMIN;
+		$this->page_label = esc_html__('Registrations', 'event_espresso');
+		$this->_cpt_routes = array(
+			'add_new_attendee' => 'espresso_attendees',
+			'edit_attendee'    => 'espresso_attendees',
+			'insert_attendee'  => 'espresso_attendees',
+			'update_attendee'  => 'espresso_attendees',
+		);
+		$this->_cpt_model_names = array(
+			'add_new_attendee' => 'EEM_Attendee',
+			'edit_attendee'    => 'EEM_Attendee',
+		);
+		$this->_cpt_edit_routes = array(
+			'espresso_attendees' => 'edit_attendee',
+		);
+		$this->_pagenow_map = array(
+			'add_new_attendee' => 'post-new.php',
+			'edit_attendee'    => 'post.php',
+			'trash'            => 'post.php',
+		);
+		add_action('edit_form_after_title', array($this, 'after_title_form_fields'), 10);
+		// add filters so that the comment urls don't take users to a confusing 404 page
+		add_filter('get_comment_link', array($this, 'clear_comment_link'), 10, 3);
+	}
+
+
+	public function clear_comment_link($link, $comment, $args)
+	{
+		// gotta make sure this only happens on this route
+		$post_type = get_post_type($comment->comment_post_ID);
+		if ($post_type === 'espresso_attendees') {
+			return '#commentsdiv';
+		}
+		return $link;
+	}
+
+
+	protected function _ajax_hooks()
+	{
+		// todo: all hooks for registrations ajax goes in here
+		add_action('wp_ajax_toggle_checkin_status', array($this, 'toggle_checkin_status'));
+	}
+
+
+	protected function _define_page_props()
+	{
+		$this->_admin_page_title = $this->page_label;
+		$this->_labels = array(
+			'buttons'                      => array(
+				'add-registrant'      => esc_html__('Add New Registration', 'event_espresso'),
+				'add-attendee'        => esc_html__('Add Contact', 'event_espresso'),
+				'edit'                => esc_html__('Edit Contact', 'event_espresso'),
+				'report'              => esc_html__("Event Registrations CSV Report", "event_espresso"),
+				'report_all'          => esc_html__('All Registrations CSV Report', 'event_espresso'),
+				'report_filtered'     => esc_html__('Filtered CSV Report', 'event_espresso'),
+				'contact_list_report' => esc_html__('Contact List Report', 'event_espresso'),
+				'contact_list_export' => esc_html__("Export Data", "event_espresso"),
+			),
+			'publishbox'                   => array(
+				'add_new_attendee' => esc_html__("Add Contact Record", 'event_espresso'),
+				'edit_attendee'    => esc_html__("Update Contact Record", 'event_espresso'),
+			),
+			'hide_add_button_on_cpt_route' => array(
+				'edit_attendee' => true,
+			),
+		);
+	}
+
+
+	/**
+	 *        grab url requests and route them
+	 *
+	 * @access private
+	 * @return void
+	 */
+	public function _set_page_routes()
+	{
+		$this->_get_registration_status_array();
+		$reg_id = ! empty($this->_req_data['_REG_ID']) && ! is_array($this->_req_data['_REG_ID'])
+			? $this->_req_data['_REG_ID'] : 0;
+		$reg_id = empty($reg_id) && ! empty($this->_req_data['reg_status_change_form']['REG_ID'])
+			? $this->_req_data['reg_status_change_form']['REG_ID']
+			: $reg_id;
+		$att_id = ! empty($this->_req_data['ATT_ID']) && ! is_array($this->_req_data['ATT_ID'])
+			? $this->_req_data['ATT_ID'] : 0;
+		$att_id = ! empty($this->_req_data['post']) && ! is_array($this->_req_data['post'])
+			? $this->_req_data['post']
+			: $att_id;
+		$this->_page_routes = array(
+			'default'                             => array(
+				'func'       => '_registrations_overview_list_table',
+				'capability' => 'ee_read_registrations',
+			),
+			'view_registration'                   => array(
+				'func'       => '_registration_details',
+				'capability' => 'ee_read_registration',
+				'obj_id'     => $reg_id,
+			),
+			'edit_registration'                   => array(
+				'func'               => '_update_attendee_registration_form',
+				'noheader'           => true,
+				'headers_sent_route' => 'view_registration',
+				'capability'         => 'ee_edit_registration',
+				'obj_id'             => $reg_id,
+				'_REG_ID'            => $reg_id,
+			),
+			'trash_registrations'                 => array(
+				'func'       => '_trash_or_restore_registrations',
+				'args'       => array('trash' => true),
+				'noheader'   => true,
+				'capability' => 'ee_delete_registrations',
+			),
+			'restore_registrations'               => array(
+				'func'       => '_trash_or_restore_registrations',
+				'args'       => array('trash' => false),
+				'noheader'   => true,
+				'capability' => 'ee_delete_registrations',
+			),
+			'delete_registrations'                => array(
+				'func'       => '_delete_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_delete_registrations',
+			),
+			'new_registration'                    => array(
+				'func'       => 'new_registration',
+				'capability' => 'ee_edit_registrations',
+			),
+			'process_reg_step'                    => array(
+				'func'       => 'process_reg_step',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+			),
+			'redirect_to_txn'                     => array(
+				'func'       => 'redirect_to_txn',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+			),
+			'change_reg_status'                   => array(
+				'func'       => '_change_reg_status',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'approve_registration'                => array(
+				'func'       => 'approve_registration',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'approve_and_notify_registration'     => array(
+				'func'       => 'approve_registration',
+				'noheader'   => true,
+				'args'       => array(true),
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'approve_registrations'               => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('approve'),
+			),
+			'approve_and_notify_registrations'    => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('approve', true),
+			),
+			'decline_registration'                => array(
+				'func'       => 'decline_registration',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'decline_and_notify_registration'     => array(
+				'func'       => 'decline_registration',
+				'noheader'   => true,
+				'args'       => array(true),
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'decline_registrations'               => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('decline'),
+			),
+			'decline_and_notify_registrations'    => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('decline', true),
+			),
+			'pending_registration'                => array(
+				'func'       => 'pending_registration',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'pending_and_notify_registration'     => array(
+				'func'       => 'pending_registration',
+				'noheader'   => true,
+				'args'       => array(true),
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'pending_registrations'               => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('pending'),
+			),
+			'pending_and_notify_registrations'    => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('pending', true),
+			),
+			'no_approve_registration'             => array(
+				'func'       => 'not_approve_registration',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'no_approve_and_notify_registration'  => array(
+				'func'       => 'not_approve_registration',
+				'noheader'   => true,
+				'args'       => array(true),
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'no_approve_registrations'            => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('not_approve'),
+			),
+			'no_approve_and_notify_registrations' => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('not_approve', true),
+			),
+			'cancel_registration'                 => array(
+				'func'       => 'cancel_registration',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'cancel_and_notify_registration'      => array(
+				'func'       => 'cancel_registration',
+				'noheader'   => true,
+				'args'       => array(true),
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'cancel_registrations'                => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('cancel'),
+			),
+			'cancel_and_notify_registrations'     => array(
+				'func'       => 'bulk_action_on_registrations',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registrations',
+				'args'       => array('cancel', true),
+			),
+			'wait_list_registration'              => array(
+				'func'       => 'wait_list_registration',
+				'noheader'   => true,
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'wait_list_and_notify_registration'   => array(
+				'func'       => 'wait_list_registration',
+				'noheader'   => true,
+				'args'       => array(true),
+				'capability' => 'ee_edit_registration',
+				'obj_id'     => $reg_id,
+			),
+			'contact_list'                        => array(
+				'func'       => '_attendee_contact_list_table',
+				'capability' => 'ee_read_contacts',
+			),
+			'add_new_attendee'                    => array(
+				'func' => '_create_new_cpt_item',
+				'args' => array(
+					'new_attendee' => true,
+					'capability'   => 'ee_edit_contacts',
+				),
+			),
+			'edit_attendee'                       => array(
+				'func'       => '_edit_cpt_item',
+				'capability' => 'ee_edit_contacts',
+				'obj_id'     => $att_id,
+			),
+			'duplicate_attendee'                  => array(
+				'func'       => '_duplicate_attendee',
+				'noheader'   => true,
+				'capability' => 'ee_edit_contacts',
+				'obj_id'     => $att_id,
+			),
+			'insert_attendee'                     => array(
+				'func'       => '_insert_or_update_attendee',
+				'args'       => array(
+					'new_attendee' => true,
+				),
+				'noheader'   => true,
+				'capability' => 'ee_edit_contacts',
+			),
+			'update_attendee'                     => array(
+				'func'       => '_insert_or_update_attendee',
+				'args'       => array(
+					'new_attendee' => false,
+				),
+				'noheader'   => true,
+				'capability' => 'ee_edit_contacts',
+				'obj_id'     => $att_id,
+			),
+			'trash_attendees'                     => array(
+				'func'       => '_trash_or_restore_attendees',
+				'args'       => array(
+					'trash' => 'true',
+				),
+				'noheader'   => true,
+				'capability' => 'ee_delete_contacts',
+			),
+			'trash_attendee'                      => array(
+				'func'       => '_trash_or_restore_attendees',
+				'args'       => array(
+					'trash' => true,
+				),
+				'noheader'   => true,
+				'capability' => 'ee_delete_contacts',
+				'obj_id'     => $att_id,
+			),
+			'restore_attendees'                   => array(
+				'func'       => '_trash_or_restore_attendees',
+				'args'       => array(
+					'trash' => false,
+				),
+				'noheader'   => true,
+				'capability' => 'ee_delete_contacts',
+				'obj_id'     => $att_id,
+			),
+			'resend_registration'                 => array(
+				'func'       => '_resend_registration',
+				'noheader'   => true,
+				'capability' => 'ee_send_message',
+			),
+			'registrations_report'                => array(
+				'func'       => '_registrations_report',
+				'noheader'   => true,
+				'capability' => 'ee_read_registrations',
+			),
+			'contact_list_export'                 => array(
+				'func'       => '_contact_list_export',
+				'noheader'   => true,
+				'capability' => 'export',
+			),
+			'contact_list_report'                 => array(
+				'func'       => '_contact_list_report',
+				'noheader'   => true,
+				'capability' => 'ee_read_contacts',
+			),
+		);
+	}
+
+
+	protected function _set_page_config()
+	{
+		$this->_page_config = array(
+			'default'           => array(
+				'nav'           => array(
+					'label' => esc_html__('Overview', 'event_espresso'),
+					'order' => 5,
+				),
+				'help_tabs'     => array(
+					'registrations_overview_help_tab'                       => array(
+						'title'    => esc_html__('Registrations Overview', 'event_espresso'),
+						'filename' => 'registrations_overview',
+					),
+					'registrations_overview_table_column_headings_help_tab' => array(
+						'title'    => esc_html__('Registrations Table Column Headings', 'event_espresso'),
+						'filename' => 'registrations_overview_table_column_headings',
+					),
+					'registrations_overview_filters_help_tab'               => array(
+						'title'    => esc_html__('Registration Filters', 'event_espresso'),
+						'filename' => 'registrations_overview_filters',
+					),
+					'registrations_overview_views_help_tab'                 => array(
+						'title'    => esc_html__('Registration Views', 'event_espresso'),
+						'filename' => 'registrations_overview_views',
+					),
+					'registrations_regoverview_other_help_tab'              => array(
+						'title'    => esc_html__('Registrations Other', 'event_espresso'),
+						'filename' => 'registrations_overview_other',
+					),
+				),
+				'help_tour'     => array('Registration_Overview_Help_Tour'),
+				'qtips'         => array('Registration_List_Table_Tips'),
+				'list_table'    => 'EE_Registrations_List_Table',
+				'require_nonce' => false,
+			),
+			'view_registration' => array(
+				'nav'           => array(
+					'label'      => esc_html__('REG Details', 'event_espresso'),
+					'order'      => 15,
+					'url'        => isset($this->_req_data['_REG_ID'])
+						? add_query_arg(array('_REG_ID' => $this->_req_data['_REG_ID']), $this->_current_page_view_url)
+						: $this->_admin_base_url,
+					'persistent' => false,
+				),
+				'help_tabs'     => array(
+					'registrations_details_help_tab'                    => array(
+						'title'    => esc_html__('Registration Details', 'event_espresso'),
+						'filename' => 'registrations_details',
+					),
+					'registrations_details_table_help_tab'              => array(
+						'title'    => esc_html__('Registration Details Table', 'event_espresso'),
+						'filename' => 'registrations_details_table',
+					),
+					'registrations_details_form_answers_help_tab'       => array(
+						'title'    => esc_html__('Registration Form Answers', 'event_espresso'),
+						'filename' => 'registrations_details_form_answers',
+					),
+					'registrations_details_registrant_details_help_tab' => array(
+						'title'    => esc_html__('Contact Details', 'event_espresso'),
+						'filename' => 'registrations_details_registrant_details',
+					),
+				),
+				'help_tour'     => array('Registration_Details_Help_Tour'),
+				'metaboxes'     => array_merge(
+					$this->_default_espresso_metaboxes,
+					array('_registration_details_metaboxes')
+				),
+				'require_nonce' => false,
+			),
+			'new_registration'  => array(
+				'nav'           => array(
+					'label'      => esc_html__('Add New Registration', 'event_espresso'),
+					'url'        => '#',
+					'order'      => 15,
+					'persistent' => false,
+				),
+				'metaboxes'     => $this->_default_espresso_metaboxes,
+				'labels'        => array(
+					'publishbox' => esc_html__('Save Registration', 'event_espresso'),
+				),
+				'require_nonce' => false,
+			),
+			'add_new_attendee'  => array(
+				'nav'           => array(
+					'label'      => esc_html__('Add Contact', 'event_espresso'),
+					'order'      => 15,
+					'persistent' => false,
+				),
+				'metaboxes'     => array_merge(
+					$this->_default_espresso_metaboxes,
+					array('_publish_post_box', 'attendee_editor_metaboxes')
+				),
+				'require_nonce' => false,
+			),
+			'edit_attendee'     => array(
+				'nav'           => array(
+					'label'      => esc_html__('Edit Contact', 'event_espresso'),
+					'order'      => 15,
+					'persistent' => false,
+					'url'        => isset($this->_req_data['ATT_ID'])
+						? add_query_arg(array('ATT_ID' => $this->_req_data['ATT_ID']), $this->_current_page_view_url)
+						: $this->_admin_base_url,
+				),
+				'metaboxes'     => array('attendee_editor_metaboxes'),
+				'require_nonce' => false,
+			),
+			'contact_list'      => array(
+				'nav'           => array(
+					'label' => esc_html__('Contact List', 'event_espresso'),
+					'order' => 20,
+				),
+				'list_table'    => 'EE_Attendee_Contact_List_Table',
+				'help_tabs'     => array(
+					'registrations_contact_list_help_tab'                       => array(
+						'title'    => esc_html__('Registrations Contact List', 'event_espresso'),
+						'filename' => 'registrations_contact_list',
+					),
+					'registrations_contact-list_table_column_headings_help_tab' => array(
+						'title'    => esc_html__('Contact List Table Column Headings', 'event_espresso'),
+						'filename' => 'registrations_contact_list_table_column_headings',
+					),
+					'registrations_contact_list_views_help_tab'                 => array(
+						'title'    => esc_html__('Contact List Views', 'event_espresso'),
+						'filename' => 'registrations_contact_list_views',
+					),
+					'registrations_contact_list_other_help_tab'                 => array(
+						'title'    => esc_html__('Contact List Other', 'event_espresso'),
+						'filename' => 'registrations_contact_list_other',
+					),
+				),
+				'help_tour'     => array('Contact_List_Help_Tour'),
+				'metaboxes'     => array(),
+				'require_nonce' => false,
+			),
+			// override default cpt routes
+			'create_new'        => '',
+			'edit'              => '',
+		);
+	}
+
+
+	/**
+	 * The below methods aren't used by this class currently
+	 */
+	protected function _add_screen_options()
+	{
+	}
+
+
+	protected function _add_feature_pointers()
+	{
+	}
+
+
+	public function admin_init()
+	{
+		EE_Registry::$i18n_js_strings['update_att_qstns'] = esc_html__(
+			'click "Update Registration Questions" to save your changes',
+			'event_espresso'
+		);
+	}
+
+
+	public function admin_notices()
+	{
+	}
+
+
+	public function admin_footer_scripts()
+	{
+	}
+
+
+	/**
+	 *        get list of registration statuses
+	 *
+	 * @access private
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private function _get_registration_status_array()
+	{
+		self::$_reg_status = EEM_Registration::reg_status_array(array(), true);
+	}
+
+
+	protected function _add_screen_options_default()
+	{
+		$this->_per_page_screen_option();
+	}
+
+
+	protected function _add_screen_options_contact_list()
+	{
+		$page_title = $this->_admin_page_title;
+		$this->_admin_page_title = esc_html__("Contacts", 'event_espresso');
+		$this->_per_page_screen_option();
+		$this->_admin_page_title = $page_title;
+	}
+
+
+	public function load_scripts_styles()
+	{
+		// style
+		wp_register_style(
+			'espresso_reg',
+			REG_ASSETS_URL . 'espresso_registrations_admin.css',
+			array('ee-admin-css'),
+			EVENT_ESPRESSO_VERSION
+		);
+		wp_enqueue_style('espresso_reg');
+		// script
+		wp_register_script(
+			'espresso_reg',
+			REG_ASSETS_URL . 'espresso_registrations_admin.js',
+			array('jquery-ui-datepicker', 'jquery-ui-draggable', 'ee_admin_js'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_enqueue_script('espresso_reg');
+	}
+
+
+	public function load_scripts_styles_edit_attendee()
+	{
+		// stuff to only show up on our attendee edit details page.
+		$attendee_details_translations = array(
+			'att_publish_text' => sprintf(
+				esc_html__('Created on: <b>%1$s</b>', 'event_espresso'),
+				$this->_cpt_model_obj->get_datetime('ATT_created')
+			),
+		);
+		wp_localize_script('espresso_reg', 'ATTENDEE_DETAILS', $attendee_details_translations);
+		wp_enqueue_script('jquery-validate');
+	}
+
+
+	public function load_scripts_styles_view_registration()
+	{
+		// styles
+		wp_enqueue_style('espresso-ui-theme');
+		// scripts
+		$this->_get_reg_custom_questions_form($this->_registration->ID());
+		$this->_reg_custom_questions_form->wp_enqueue_scripts(true);
+	}
+
+
+	public function load_scripts_styles_contact_list()
+	{
+		wp_dequeue_style('espresso_reg');
+		wp_register_style(
+			'espresso_att',
+			REG_ASSETS_URL . 'espresso_attendees_admin.css',
+			array('ee-admin-css'),
+			EVENT_ESPRESSO_VERSION
+		);
+		wp_enqueue_style('espresso_att');
+	}
+
+
+	public function load_scripts_styles_new_registration()
+	{
+		wp_register_script(
+			'ee-spco-for-admin',
+			REG_ASSETS_URL . 'spco_for_admin.js',
+			array('underscore', 'jquery'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_enqueue_script('ee-spco-for-admin');
+		add_filter('FHEE__EED_Ticket_Selector__load_tckt_slctr_assets', '__return_true');
+		EE_Form_Section_Proper::wp_enqueue_scripts();
+		EED_Ticket_Selector::load_tckt_slctr_assets();
+		EE_Datepicker_Input::enqueue_styles_and_scripts();
+	}
+
+
+	public function AHEE__EE_Admin_Page__route_admin_request_resend_registration()
+	{
+		add_filter('FHEE_load_EE_messages', '__return_true');
+	}
+
+
+	public function AHEE__EE_Admin_Page__route_admin_request_approve_registration()
+	{
+		add_filter('FHEE_load_EE_messages', '__return_true');
+	}
+
+
+	protected function _set_list_table_views_default()
+	{
+		// for notification related bulk actions we need to make sure only active messengers have an option.
+		EED_Messages::set_autoloaders();
+		/** @type EE_Message_Resource_Manager $message_resource_manager */
+		$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		$active_mts = $message_resource_manager->list_of_active_message_types();
+		// key= bulk_action_slug, value= message type.
+		$match_array = array(
+			'approve_registrations'    => 'registration',
+			'decline_registrations'    => 'declined_registration',
+			'pending_registrations'    => 'pending_approval',
+			'no_approve_registrations' => 'not_approved_registration',
+			'cancel_registrations'     => 'cancelled_registration',
+		);
+		$can_send = EE_Registry::instance()->CAP->current_user_can(
+			'ee_send_message',
+			'batch_send_messages'
+		);
+		/** setup reg status bulk actions **/
+		$def_reg_status_actions['approve_registrations'] = esc_html__('Approve Registrations', 'event_espresso');
+		if ($can_send && in_array($match_array['approve_registrations'], $active_mts, true)) {
+			$def_reg_status_actions['approve_and_notify_registrations'] = esc_html__(
+				'Approve and Notify Registrations',
+				'event_espresso'
+			);
+		}
+		$def_reg_status_actions['decline_registrations'] = esc_html__('Decline Registrations', 'event_espresso');
+		if ($can_send && in_array($match_array['decline_registrations'], $active_mts, true)) {
+			$def_reg_status_actions['decline_and_notify_registrations'] = esc_html__(
+				'Decline and Notify Registrations',
+				'event_espresso'
+			);
+		}
+		$def_reg_status_actions['pending_registrations'] = esc_html__(
+			'Set Registrations to Pending Payment',
+			'event_espresso'
+		);
+		if ($can_send && in_array($match_array['pending_registrations'], $active_mts, true)) {
+			$def_reg_status_actions['pending_and_notify_registrations'] = esc_html__(
+				'Set Registrations to Pending Payment and Notify',
+				'event_espresso'
+			);
+		}
+		$def_reg_status_actions['no_approve_registrations'] = esc_html__(
+			'Set Registrations to Not Approved',
+			'event_espresso'
+		);
+		if ($can_send && in_array($match_array['no_approve_registrations'], $active_mts, true)) {
+			$def_reg_status_actions['no_approve_and_notify_registrations'] = esc_html__(
+				'Set Registrations to Not Approved and Notify',
+				'event_espresso'
+			);
+		}
+		$def_reg_status_actions['cancel_registrations'] = esc_html__('Cancel Registrations', 'event_espresso');
+		if ($can_send && in_array($match_array['cancel_registrations'], $active_mts, true)) {
+			$def_reg_status_actions['cancel_and_notify_registrations'] = esc_html__(
+				'Cancel Registrations and Notify',
+				'event_espresso'
+			);
+		}
+		$def_reg_status_actions = apply_filters(
+			'FHEE__Registrations_Admin_Page___set_list_table_views_default__def_reg_status_actions_array',
+			$def_reg_status_actions,
+			$active_mts,
+			$can_send
+		);
+
+		$this->_views = array(
+			'all'   => array(
+				'slug'        => 'all',
+				'label'       => esc_html__('View All Registrations', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array_merge(
+					$def_reg_status_actions,
+					array(
+						'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
+					)
+				),
+			),
+			'month' => array(
+				'slug'        => 'month',
+				'label'       => esc_html__('This Month', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array_merge(
+					$def_reg_status_actions,
+					array(
+						'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
+					)
+				),
+			),
+			'today' => array(
+				'slug'        => 'today',
+				'label'       => sprintf(
+					esc_html__('Today - %s', 'event_espresso'),
+					date('M d, Y', current_time('timestamp'))
+				),
+				'count'       => 0,
+				'bulk_action' => array_merge(
+					$def_reg_status_actions,
+					array(
+						'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
+					)
+				),
+			),
+		);
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_delete_registrations',
+			'espresso_registrations_delete_registration'
+		)) {
+			$this->_views['incomplete'] = array(
+				'slug'        => 'incomplete',
+				'label'       => esc_html__('Incomplete', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array(
+					'trash_registrations' => esc_html__('Trash Registrations', 'event_espresso'),
+				),
+			);
+			$this->_views['trash'] = array(
+				'slug'        => 'trash',
+				'label'       => esc_html__('Trash', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array(
+					'restore_registrations' => esc_html__('Restore Registrations', 'event_espresso'),
+					'delete_registrations'  => esc_html__('Delete Registrations Permanently', 'event_espresso'),
+				),
+			);
+		}
+	}
+
+
+	protected function _set_list_table_views_contact_list()
+	{
+		$this->_views = array(
+			'in_use' => array(
+				'slug'        => 'in_use',
+				'label'       => esc_html__('In Use', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array(
+					'trash_attendees' => esc_html__('Move to Trash', 'event_espresso'),
+				),
+			),
+		);
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_delete_contacts',
+			'espresso_registrations_trash_attendees'
+		)
+		) {
+			$this->_views['trash'] = array(
+				'slug'        => 'trash',
+				'label'       => esc_html__('Trash', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array(
+					'restore_attendees' => esc_html__('Restore from Trash', 'event_espresso'),
+				),
+			);
+		}
+	}
+
+
+	protected function _registration_legend_items()
+	{
+		$fc_items = array(
+			'star-icon'        => array(
+				'class' => 'dashicons dashicons-star-filled lt-blue-icon ee-icon-size-8',
+				'desc'  => esc_html__('This is the Primary Registrant', 'event_espresso'),
+			),
+			'view_details'     => array(
+				'class' => 'dashicons dashicons-clipboard',
+				'desc'  => esc_html__('View Registration Details', 'event_espresso'),
+			),
+			'edit_attendee'    => array(
+				'class' => 'ee-icon ee-icon-user-edit ee-icon-size-16',
+				'desc'  => esc_html__('Edit Contact Details', 'event_espresso'),
+			),
+			'view_transaction' => array(
+				'class' => 'dashicons dashicons-cart',
+				'desc'  => esc_html__('View Transaction Details', 'event_espresso'),
+			),
+			'view_invoice'     => array(
+				'class' => 'dashicons dashicons-media-spreadsheet',
+				'desc'  => esc_html__('View Transaction Invoice', 'event_espresso'),
+			),
+		);
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_send_message',
+			'espresso_registrations_resend_registration'
+		)) {
+			$fc_items['resend_registration'] = array(
+				'class' => 'dashicons dashicons-email-alt',
+				'desc'  => esc_html__('Resend Registration Details', 'event_espresso'),
+			);
+		} else {
+			$fc_items['blank'] = array('class' => 'blank', 'desc' => '');
+		}
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_read_global_messages',
+			'view_filtered_messages'
+		)) {
+			$related_for_icon = EEH_MSG_Template::get_message_action_icon('see_notifications_for');
+			if (isset($related_for_icon['css_class']) && isset($related_for_icon['label'])) {
+				$fc_items['view_related_messages'] = array(
+					'class' => $related_for_icon['css_class'],
+					'desc'  => $related_for_icon['label'],
+				);
+			}
+		}
+		$sc_items = array(
+			'approved_status'   => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_approved,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_approved,
+					false,
+					'sentence'
+				),
+			),
+			'pending_status'    => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_pending_payment,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_pending_payment,
+					false,
+					'sentence'
+				),
+			),
+			'wait_list'         => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_wait_list,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_wait_list,
+					false,
+					'sentence'
+				),
+			),
+			'incomplete_status' => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_incomplete,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_incomplete,
+					false,
+					'sentence'
+				),
+			),
+			'not_approved'      => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_not_approved,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_not_approved,
+					false,
+					'sentence'
+				),
+			),
+			'declined_status'   => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_declined,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_declined,
+					false,
+					'sentence'
+				),
+			),
+			'cancelled_status'  => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_cancelled,
+				'desc'  => EEH_Template::pretty_status(
+					EEM_Registration::status_id_cancelled,
+					false,
+					'sentence'
+				),
+			),
+		);
+		return array_merge($fc_items, $sc_items);
+	}
+
+
+
+	/***************************************        REGISTRATION OVERVIEW        **************************************/
+	/**
+	 * @throws \EE_Error
+	 */
+	protected function _registrations_overview_list_table()
+	{
+		$this->_template_args['admin_page_header'] = '';
+		$EVT_ID = ! empty($this->_req_data['event_id'])
+			? absint($this->_req_data['event_id'])
+			: 0;
+		$ATT_ID = ! empty($this->_req_data['ATT_ID'])
+			? absint($this->_req_data['ATT_ID'])
+			: 0;
+		if ($ATT_ID) {
+			$attendee = EEM_Attendee::instance()->get_one_by_ID($ATT_ID);
+			if ($attendee instanceof EE_Attendee) {
+				$this->_template_args['admin_page_header'] = sprintf(
+					esc_html__(
+						'%1$s Viewing registrations for %2$s%3$s',
+						'event_espresso'
+					),
+					'<h3 style="line-height:1.5em;">',
+					'<a href="' . EE_Admin_Page::add_query_args_and_nonce(
+						array(
+							'action' => 'edit_attendee',
+							'post'   => $ATT_ID,
+						),
+						REG_ADMIN_URL
+					) . '">' . $attendee->full_name() . '</a>',
+					'</h3>'
+				);
+			}
+		}
+		if ($EVT_ID) {
+			if (EE_Registry::instance()->CAP->current_user_can(
+				'ee_edit_registrations',
+				'espresso_registrations_new_registration',
+				$EVT_ID
+			)) {
+				$this->_admin_page_title .= ' ' . $this->get_action_link_or_button(
+					'new_registration',
+					'add-registrant',
+					array('event_id' => $EVT_ID),
+					'add-new-h2'
+				);
+			}
+			$event = EEM_Event::instance()->get_one_by_ID($EVT_ID);
+			if ($event instanceof EE_Event) {
+				$this->_template_args['admin_page_header'] = sprintf(
+					esc_html__(
+						'%s Viewing registrations for the event: %s%s',
+						'event_espresso'
+					),
+					'<h3 style="line-height:1.5em;">',
+					'<br /><a href="'
+					. EE_Admin_Page::add_query_args_and_nonce(
+						array(
+							'action' => 'edit',
+							'post'   => $event->ID(),
+						),
+						EVENTS_ADMIN_URL
+					)
+					. '">&nbsp;'
+					. $event->get('EVT_name')
+					. '&nbsp;</a>&nbsp;',
+					'</h3>'
+				);
+			}
+			$DTT_ID = ! empty($this->_req_data['datetime_id']) ? absint($this->_req_data['datetime_id']) : 0;
+			$datetime = EEM_Datetime::instance()->get_one_by_ID($DTT_ID);
+			if ($datetime instanceof EE_Datetime && $this->_template_args['admin_page_header'] !== '') {
+				$this->_template_args['admin_page_header'] = substr(
+					$this->_template_args['admin_page_header'],
+					0,
+					-5
+				);
+				$this->_template_args['admin_page_header'] .= ' &nbsp;<span class="drk-grey-text">';
+				$this->_template_args['admin_page_header'] .= '<span class="dashicons dashicons-calendar"></span>';
+				$this->_template_args['admin_page_header'] .= $datetime->name();
+				$this->_template_args['admin_page_header'] .= ' ( ' . $datetime->start_date() . ' )';
+				$this->_template_args['admin_page_header'] .= '</span></h3>';
+			}
+		}
+		$this->_template_args['after_list_table'] = $this->_display_legend($this->_registration_legend_items());
+		$this->display_admin_list_table_page_with_no_sidebar();
+	}
+
+
+	/**
+	 * This sets the _registration property for the registration details screen
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _set_registration_object()
+	{
+		// get out if we've already set the object
+		if ($this->_registration instanceof EE_Registration) {
+			return true;
+		}
+		$REG = EEM_Registration::instance();
+		$REG_ID = (! empty($this->_req_data['_REG_ID'])) ? absint($this->_req_data['_REG_ID']) : false;
+		if ($this->_registration = $REG->get_one_by_ID($REG_ID)) {
+			return true;
+		} else {
+			$error_msg = sprintf(
+				esc_html__(
+					'An error occurred and the details for Registration ID #%s could not be retrieved.',
+					'event_espresso'
+				),
+				$REG_ID
+			);
+			EE_Error::add_error($error_msg, __FILE__, __FUNCTION__, __LINE__);
+			$this->_registration = null;
+			return false;
+		}
+	}
+
+
+	/**
+	 * Used to retrieve registrations for the list table.
+	 *
+	 * @param int  $per_page
+	 * @param bool $count
+	 * @param bool $this_month
+	 * @param bool $today
+	 * @return EE_Registration[]|int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function get_registrations(
+		$per_page = 10,
+		$count = false,
+		$this_month = false,
+		$today = false
+	) {
+		if ($this_month) {
+			$this->_req_data['status'] = 'month';
+		}
+		if ($today) {
+			$this->_req_data['status'] = 'today';
+		}
+		$query_params = $this->_get_registration_query_parameters($this->_req_data, $per_page, $count);
+		/**
+		 * Override the default groupby added by EEM_Base so that sorts with multiple order bys work as expected
+		 *
+		 * @link https://events.codebasehq.com/projects/event-espresso/tickets/10093
+		 * @see  EEM_Base::get_all()
+		 */
+		$query_params['group_by'] = '';
+
+		return $count
+			? EEM_Registration::instance()->count($query_params)
+			/** @type EE_Registration[] */
+			: EEM_Registration::instance()->get_all($query_params);
+	}
+
+
+	/**
+	 * Retrieves the query parameters to be used by the Registration model for getting registrations.
+	 * Note: this listens to values on the request for some of the query parameters.
+	 *
+	 * @param array $request
+	 * @param int   $per_page
+	 * @param bool  $count
+	 * @return array
+	 * @throws EE_Error
+	 */
+	protected function _get_registration_query_parameters(
+		$request = array(),
+		$per_page = 10,
+		$count = false
+	) {
+
+		$query_params = array(
+			0                          => $this->_get_where_conditions_for_registrations_query(
+				$request
+			),
+			'caps'                     => EEM_Registration::caps_read_admin,
+			'default_where_conditions' => 'this_model_only',
+		);
+		if (! $count) {
+			$query_params = array_merge(
+				$query_params,
+				$this->_get_orderby_for_registrations_query(),
+				$this->_get_limit($per_page)
+			);
+		}
+
+		return $query_params;
+	}
+
+
+	/**
+	 * This will add ATT_ID to the provided $where array for EE model query parameters.
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 */
+	protected function addAttendeeIdToWhereConditions(array $request)
+	{
+		$where = array();
+		if (! empty($request['ATT_ID'])) {
+			$where['ATT_ID'] = absint($request['ATT_ID']);
+		}
+		return $where;
+	}
+
+
+	/**
+	 * This will add EVT_ID to the provided $where array for EE model query parameters.
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 */
+	protected function _add_event_id_to_where_conditions(array $request)
+	{
+		$where = array();
+		if (! empty($request['event_id'])) {
+			$where['EVT_ID'] = absint($request['event_id']);
+		}
+		return $where;
+	}
+
+
+	/**
+	 * Adds category ID if it exists in the request to the where conditions for the registrations query.
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 */
+	protected function _add_category_id_to_where_conditions(array $request)
+	{
+		$where = array();
+		if (! empty($request['EVT_CAT']) && (int) $request['EVT_CAT'] !== -1) {
+			$where['Event.Term_Taxonomy.term_id'] = absint($request['EVT_CAT']);
+		}
+		return $where;
+	}
+
+
+	/**
+	 * Adds the datetime ID if it exists in the request to the where conditions for the registrations query.
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 */
+	protected function _add_datetime_id_to_where_conditions(array $request)
+	{
+		$where = array();
+		if (! empty($request['datetime_id'])) {
+			$where['Ticket.Datetime.DTT_ID'] = absint($request['datetime_id']);
+		}
+		if (! empty($request['DTT_ID'])) {
+			$where['Ticket.Datetime.DTT_ID'] = absint($request['DTT_ID']);
+		}
+		return $where;
+	}
+
+
+	/**
+	 * Adds the correct registration status to the where conditions for the registrations query.
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 */
+	protected function _add_registration_status_to_where_conditions(array $request)
+	{
+		$where = array();
+		$view = EEH_Array::is_set($request, 'status', '');
+		$registration_status = ! empty($request['_reg_status'])
+			? sanitize_text_field($request['_reg_status'])
+			: '';
+
+		/*
          * If filtering by registration status, then we show registrations matching that status.
          * If not filtering by specified status, then we show all registrations excluding incomplete registrations
          * UNLESS viewing trashed registrations.
          */
-        if (! empty($registration_status)) {
-            $where['STS_ID'] = $registration_status;
-        } else {
-            // make sure we exclude incomplete registrations, but only if not trashed.
-            if ($view === 'trash') {
-                $where['REG_deleted'] = true;
-            } elseif ($view === 'incomplete') {
-                $where['STS_ID'] = EEM_Registration::status_id_incomplete;
-            } else {
-                $where['STS_ID'] = array('!=', EEM_Registration::status_id_incomplete);
-            }
-        }
-        return $where;
-    }
-
-
-    /**
-     * Adds any provided date restraints to the where conditions for the registrations query.
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _add_date_to_where_conditions(array $request)
-    {
-        $where = array();
-        $view = EEH_Array::is_set($request, 'status', '');
-        $month_range = ! empty($request['month_range'])
-            ? sanitize_text_field($request['month_range'])
-            : '';
-        $retrieve_for_today = $view === 'today';
-        $retrieve_for_this_month = $view === 'month';
-
-        if ($retrieve_for_today) {
-            $now = date('Y-m-d', current_time('timestamp'));
-            $where['REG_date'] = array(
-                'BETWEEN',
-                array(
-                    EEM_Registration::instance()->convert_datetime_for_query(
-                        'REG_date',
-                        $now . ' 00:00:00',
-                        'Y-m-d H:i:s'
-                    ),
-                    EEM_Registration::instance()->convert_datetime_for_query(
-                        'REG_date',
-                        $now . ' 23:59:59',
-                        'Y-m-d H:i:s'
-                    ),
-                ),
-            );
-        } elseif ($retrieve_for_this_month) {
-            $current_year_and_month = date('Y-m', current_time('timestamp'));
-            $days_this_month = date('t', current_time('timestamp'));
-            $where['REG_date'] = array(
-                'BETWEEN',
-                array(
-                    EEM_Registration::instance()->convert_datetime_for_query(
-                        'REG_date',
-                        $current_year_and_month . '-01 00:00:00',
-                        'Y-m-d H:i:s'
-                    ),
-                    EEM_Registration::instance()->convert_datetime_for_query(
-                        'REG_date',
-                        $current_year_and_month . '-' . $days_this_month . ' 23:59:59',
-                        'Y-m-d H:i:s'
-                    ),
-                ),
-            );
-        } elseif ($month_range) {
-            $pieces = explode(' ', $month_range, 3);
-            $month_requested = ! empty($pieces[0])
-                ? date('m', \EEH_DTT_Helper::first_of_month_timestamp($pieces[0]))
-                : '';
-            $year_requested = ! empty($pieces[1])
-                ? $pieces[1]
-                : '';
-            // if there is not a month or year then we can't go further
-            if ($month_requested && $year_requested) {
-                $days_in_month = date('t', strtotime($year_requested . '-' . $month_requested . '-' . '01'));
-                $where['REG_date'] = array(
-                    'BETWEEN',
-                    array(
-                        EEM_Registration::instance()->convert_datetime_for_query(
-                            'REG_date',
-                            $year_requested . '-' . $month_requested . '-01 00:00:00',
-                            'Y-m-d H:i:s'
-                        ),
-                        EEM_Registration::instance()->convert_datetime_for_query(
-                            'REG_date',
-                            $year_requested . '-' . $month_requested . '-' . $days_in_month . ' 23:59:59',
-                            'Y-m-d H:i:s'
-                        ),
-                    ),
-                );
-            }
-        }
-        return $where;
-    }
-
-
-    /**
-     * Adds any provided search restraints to the where conditions for the registrations query
-     *
-     * @param array $request usually the same as $this->_req_data but not necessarily
-     * @return array
-     */
-    protected function _add_search_to_where_conditions(array $request)
-    {
-        $where = array();
-        if (! empty($request['s'])) {
-            $search_string = '%' . sanitize_text_field($request['s']) . '%';
-            $where['OR*search_conditions'] = array(
-                'Event.EVT_name'                          => array('LIKE', $search_string),
-                'Event.EVT_desc'                          => array('LIKE', $search_string),
-                'Event.EVT_short_desc'                    => array('LIKE', $search_string),
-                'Attendee.ATT_full_name'                  => array('LIKE', $search_string),
-                'Attendee.ATT_fname'                      => array('LIKE', $search_string),
-                'Attendee.ATT_lname'                      => array('LIKE', $search_string),
-                'Attendee.ATT_short_bio'                  => array('LIKE', $search_string),
-                'Attendee.ATT_email'                      => array('LIKE', $search_string),
-                'Attendee.ATT_address'                    => array('LIKE', $search_string),
-                'Attendee.ATT_address2'                   => array('LIKE', $search_string),
-                'Attendee.ATT_city'                       => array('LIKE', $search_string),
-                'REG_final_price'                         => array('LIKE', $search_string),
-                'REG_code'                                => array('LIKE', $search_string),
-                'REG_count'                               => array('LIKE', $search_string),
-                'REG_group_size'                          => array('LIKE', $search_string),
-                'Ticket.TKT_name'                         => array('LIKE', $search_string),
-                'Ticket.TKT_description'                  => array('LIKE', $search_string),
-                'Transaction.Payment.PAY_txn_id_chq_nmbr' => array('LIKE', $search_string),
-            );
-        }
-        return $where;
-    }
-
-
-    /**
-     * Sets up the where conditions for the registrations query.
-     *
-     * @param array $request
-     * @return array
-     * @throws EE_Error
-     */
-    protected function _get_where_conditions_for_registrations_query($request)
-    {
-        return apply_filters(
-            'FHEE__Registrations_Admin_Page___get_where_conditions_for_registrations_query',
-            array_merge(
-                $this->addAttendeeIdToWhereConditions($request),
-                $this->_add_event_id_to_where_conditions($request),
-                $this->_add_category_id_to_where_conditions($request),
-                $this->_add_datetime_id_to_where_conditions($request),
-                $this->_add_registration_status_to_where_conditions($request),
-                $this->_add_date_to_where_conditions($request),
-                $this->_add_search_to_where_conditions($request)
-            ),
-            $request
-        );
-    }
-
-
-    /**
-     * Sets up the orderby for the registrations query.
-     *
-     * @return array
-     */
-    protected function _get_orderby_for_registrations_query()
-    {
-        $orderby_field = ! empty($this->_req_data['orderby'])
-            ? sanitize_text_field($this->_req_data['orderby'])
-            : '_REG_date';
-        switch ($orderby_field) {
-            case '_REG_ID':
-                $orderby = array('REG_ID');
-                break;
-            case '_Reg_status':
-                $orderby = array('STS_ID');
-                break;
-            case 'ATT_fname':
-                $orderby = array('Attendee.ATT_fname', 'Attendee.ATT_lname');
-                break;
-            case 'ATT_lname':
-                $orderby = array('Attendee.ATT_lname', 'Attendee.ATT_fname');
-                break;
-            case 'event_name':
-                $orderby = array('Event.EVT_name');
-                break;
-            case 'DTT_EVT_start':
-                $orderby = array('Event.Datetime.DTT_EVT_start');
-                break;
-            case '_REG_date':
-                $orderby = array('REG_date');
-                break;
-            default:
-                $orderby = array($orderby_field);
-                break;
-        }
-
-        // order
-        $order = ! empty($this->_req_data['order'])
-            ? sanitize_text_field($this->_req_data['order'])
-            : 'DESC';
-        $orderby = array_combine(
-            $orderby,
-            array_fill(0, count($orderby), $order)
-        );
-        // because there are many registrations with the same date, define
-        // a secondary way to order them, otherwise MySQL seems to be a bit random
-        if (empty($orderby['REG_ID'])) {
-            $orderby['REG_ID'] = $order;
-        }
-
-        $orderby = apply_filters(
-            'FHEE__Registrations_Admin_Page___get_orderby_for_registrations_query',
-            $orderby,
-            $this->_req_data
-        );
-
-        return array('order_by' => $orderby);
-    }
-
-
-    /**
-     * Sets up the limit for the registrations query.
-     *
-     * @param $per_page
-     * @return array
-     */
-    protected function _get_limit($per_page)
-    {
-        $current_page = ! empty($this->_req_data['paged'])
-            ? absint($this->_req_data['paged'])
-            : 1;
-        $per_page = ! empty($this->_req_data['perpage'])
-            ? $this->_req_data['perpage']
-            : $per_page;
-
-        // -1 means return all results so get out if that's set.
-        if ((int) $per_page === -1) {
-            return array();
-        }
-        $per_page = absint($per_page);
-        $offset = ($current_page - 1) * $per_page;
-        return array('limit' => array($offset, $per_page));
-    }
-
-
-    public function get_registration_status_array()
-    {
-        return self::$_reg_status;
-    }
-
-
-
-
-    /***************************************        REGISTRATION DETAILS        ***************************************/
-    /**
-     *        generates HTML for the View Registration Details Admin page
-     *
-     * @access protected
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws EntityNotFoundException
-     */
-    protected function _registration_details()
-    {
-        $this->_template_args = array();
-        $this->_set_registration_object();
-        if (is_object($this->_registration)) {
-            $transaction = $this->_registration->transaction()
-                ? $this->_registration->transaction()
-                : EE_Transaction::new_instance();
-            $this->_session = $transaction->session_data();
-            $event_id = $this->_registration->event_ID();
-            $this->_template_args['reg_nmbr']['value'] = $this->_registration->ID();
-            $this->_template_args['reg_nmbr']['label'] = esc_html__('Registration Number', 'event_espresso');
-            $this->_template_args['reg_datetime']['value'] = $this->_registration->get_i18n_datetime('REG_date');
-            $this->_template_args['reg_datetime']['label'] = esc_html__('Date', 'event_espresso');
-            $this->_template_args['grand_total'] = $transaction->total();
-            $this->_template_args['currency_sign'] = EE_Registry::instance()->CFG->currency->sign;
-            // link back to overview
-            $this->_template_args['reg_overview_url'] = REG_ADMIN_URL;
-            $this->_template_args['registration'] = $this->_registration;
-            $this->_template_args['filtered_registrations_link'] = EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'action'   => 'default',
-                    'event_id' => $event_id,
-                ),
-                REG_ADMIN_URL
-            );
-            $this->_template_args['filtered_transactions_link'] = EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'action' => 'default',
-                    'EVT_ID' => $event_id,
-                    'page'   => 'espresso_transactions',
-                ),
-                admin_url('admin.php')
-            );
-            $this->_template_args['event_link'] = EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'page'   => 'espresso_events',
-                    'action' => 'edit',
-                    'post'   => $event_id,
-                ),
-                admin_url('admin.php')
-            );
-            // next and previous links
-            $next_reg = $this->_registration->next(
-                null,
-                array(),
-                'REG_ID'
-            );
-            $this->_template_args['next_registration'] = $next_reg
-                ? $this->_next_link(
-                    EE_Admin_Page::add_query_args_and_nonce(
-                        array(
-                            'action'  => 'view_registration',
-                            '_REG_ID' => $next_reg['REG_ID'],
-                        ),
-                        REG_ADMIN_URL
-                    ),
-                    'dashicons dashicons-arrow-right ee-icon-size-22'
-                )
-                : '';
-            $previous_reg = $this->_registration->previous(
-                null,
-                array(),
-                'REG_ID'
-            );
-            $this->_template_args['previous_registration'] = $previous_reg
-                ? $this->_previous_link(
-                    EE_Admin_Page::add_query_args_and_nonce(
-                        array(
-                            'action'  => 'view_registration',
-                            '_REG_ID' => $previous_reg['REG_ID'],
-                        ),
-                        REG_ADMIN_URL
-                    ),
-                    'dashicons dashicons-arrow-left ee-icon-size-22'
-                )
-                : '';
-            // grab header
-            $template_path = REG_TEMPLATE_PATH . 'reg_admin_details_header.template.php';
-            $this->_template_args['REG_ID'] = $this->_registration->ID();
-            $this->_template_args['admin_page_header'] = EEH_Template::display_template(
-                $template_path,
-                $this->_template_args,
-                true
-            );
-        } else {
-            $this->_template_args['admin_page_header'] = $this->display_espresso_notices();
-        }
-        // the details template wrapper
-        $this->display_admin_page_with_sidebar();
-    }
-
-
-    protected function _registration_details_metaboxes()
-    {
-        do_action('AHEE__Registrations_Admin_Page___registration_details_metabox__start', $this);
-        $this->_set_registration_object();
-        $attendee = $this->_registration instanceof EE_Registration ? $this->_registration->attendee() : null;
-        add_meta_box(
-            'edit-reg-status-mbox',
-            esc_html__('Registration Status', 'event_espresso'),
-            array($this, 'set_reg_status_buttons_metabox'),
-            $this->wp_page_slug,
-            'normal',
-            'high'
-        );
-        add_meta_box(
-            'edit-reg-details-mbox',
-            esc_html__('Registration Details', 'event_espresso'),
-            array($this, '_reg_details_meta_box'),
-            $this->wp_page_slug,
-            'normal',
-            'high'
-        );
-        if ($attendee instanceof EE_Attendee
-            && EE_Registry::instance()->CAP->current_user_can(
-                'ee_edit_registration',
-                'edit-reg-questions-mbox',
-                $this->_registration->ID()
-            )
-        ) {
-            add_meta_box(
-                'edit-reg-questions-mbox',
-                esc_html__('Registration Form Answers', 'event_espresso'),
-                array($this, '_reg_questions_meta_box'),
-                $this->wp_page_slug,
-                'normal',
-                'high'
-            );
-        }
-        add_meta_box(
-            'edit-reg-registrant-mbox',
-            esc_html__('Contact Details', 'event_espresso'),
-            array($this, '_reg_registrant_side_meta_box'),
-            $this->wp_page_slug,
-            'side',
-            'high'
-        );
-        if ($this->_registration->group_size() > 1) {
-            add_meta_box(
-                'edit-reg-attendees-mbox',
-                esc_html__('Other Registrations in this Transaction', 'event_espresso'),
-                array($this, '_reg_attendees_meta_box'),
-                $this->wp_page_slug,
-                'normal',
-                'high'
-            );
-        }
-    }
-
-
-    /**
-     * set_reg_status_buttons_metabox
-     *
-     * @access protected
-     * @return string
-     * @throws \EE_Error
-     */
-    public function set_reg_status_buttons_metabox()
-    {
-        $this->_set_registration_object();
-        $change_reg_status_form = $this->_generate_reg_status_change_form();
-        echo $change_reg_status_form->form_open(
-            self::add_query_args_and_nonce(
-                array(
-                    'action' => 'change_reg_status',
-                ),
-                REG_ADMIN_URL
-            )
-        );
-        echo $change_reg_status_form->get_html();
-        echo $change_reg_status_form->form_close();
-    }
-
-
-    /**
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     */
-    protected function _generate_reg_status_change_form()
-    {
-        return new EE_Form_Section_Proper(
-            array(
-                'name'            => 'reg_status_change_form',
-                'html_id'         => 'reg-status-change-form',
-                'layout_strategy' => new EE_Admin_Two_Column_Layout(),
-                'subsections'     => array(
-                    'return'             => new EE_Hidden_Input(
-                        array(
-                            'name'    => 'return',
-                            'default' => 'view_registration',
-                        )
-                    ),
-                    'REG_ID'             => new EE_Hidden_Input(
-                        array(
-                            'name'    => 'REG_ID',
-                            'default' => $this->_registration->ID(),
-                        )
-                    ),
-                    'current_status'     => new EE_Form_Section_HTML(
-                        EEH_HTML::tr(
-                            EEH_HTML::th(
-                                EEH_HTML::label(
-                                    EEH_HTML::strong(
-                                        esc_html__('Current Registration Status', 'event_espresso')
-                                    )
-                                )
-                            )
-                            . EEH_HTML::td(
-                                EEH_HTML::strong(
-                                    $this->_registration->pretty_status(),
-                                    '',
-                                    'status-' . $this->_registration->status_ID(),
-                                    'line-height: 1em; font-size: 1.5em; font-weight: bold;'
-                                )
-                            )
-                        )
-                    ),
-                    'reg_status'         => new EE_Select_Input(
-                        $this->_get_reg_statuses(),
-                        array(
-                            'html_label_text' => esc_html__('Change Registration Status to', 'event_espresso'),
-                            'default'         => $this->_registration->status_ID(),
-                        )
-                    ),
-                    'send_notifications' => new EE_Yes_No_Input(
-                        array(
-                            'html_label_text' => esc_html__('Send Related Messages', 'event_espresso'),
-                            'default'         => false,
-                            'html_help_text'  => esc_html__(
-                                'If set to "Yes", then the related messages will be sent to the registrant.',
-                                'event_espresso'
-                            ),
-                        )
-                    ),
-                    'submit'             => new EE_Submit_Input(
-                        array(
-                            'html_class'      => 'button-primary',
-                            'html_label_text' => '&nbsp;',
-                            'default'         => esc_html__('Update Registration Status', 'event_espresso'),
-                        )
-                    ),
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * Returns an array of all the buttons for the various statuses and switch status actions
-     *
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws EntityNotFoundException
-     */
-    protected function _get_reg_statuses()
-    {
-        $reg_status_array = EEM_Registration::instance()->reg_status_array();
-        unset($reg_status_array[ EEM_Registration::status_id_incomplete ]);
-        // get current reg status
-        $current_status = $this->_registration->status_ID();
-        // is registration for free event? This will determine whether to display the pending payment option
-        if ($current_status !== EEM_Registration::status_id_pending_payment
-            && EEH_Money::compare_floats($this->_registration->ticket()->price(), 0.00)
-        ) {
-            unset($reg_status_array[ EEM_Registration::status_id_pending_payment ]);
-        }
-        return EEM_Status::instance()->localized_status($reg_status_array, false, 'sentence');
-    }
-
-
-    /**
-     * This method is used when using _REG_ID from request which may or may not be an array of reg_ids.
-     *
-     * @param bool $status REG status given for changing registrations to.
-     * @param bool $notify Whether to send messages notifications or not.
-     * @return array (array with reg_id(s) updated and whether update was successful.
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws EntityNotFoundException
-     */
-    protected function _set_registration_status_from_request($status = false, $notify = false)
-    {
-        if (isset($this->_req_data['reg_status_change_form'])) {
-            $REG_IDs = isset($this->_req_data['reg_status_change_form']['REG_ID'])
-                ? (array) $this->_req_data['reg_status_change_form']['REG_ID']
-                : array();
-        } else {
-            $REG_IDs = isset($this->_req_data['_REG_ID'])
-                ? (array) $this->_req_data['_REG_ID']
-                : array();
-        }
-        // sanitize $REG_IDs
-        $REG_IDs = array_map('absint', $REG_IDs);
-        // and remove empty entries
-        $REG_IDs = array_filter($REG_IDs);
-
-        $result = $this->_set_registration_status($REG_IDs, $status, $notify);
-
-        /**
-         * Set and filter $_req_data['_REG_ID'] for any potential future messages notifications.
-         * Currently this value is used downstream by the _process_resend_registration method.
-         *
-         * @param int|array                $registration_ids The registration ids that have had their status changed successfully.
-         * @param bool                     $status           The status registrations were changed to.
-         * @param bool                     $success          If the status was changed successfully for all registrations.
-         * @param Registrations_Admin_Page $admin_page_object
-         */
-        $this->_req_data['_REG_ID'] = apply_filters(
-            'FHEE__Registrations_Admin_Page___set_registration_status_from_request__REG_IDs',
-            $result['REG_ID'],
-            $status,
-            $result['success'],
-            $this
-        );
-
-        // notify?
-        if ($notify
-            && $result['success']
-            && ! empty($this->_req_data['_REG_ID'])
-            && EE_Registry::instance()->CAP->current_user_can(
-                'ee_send_message',
-                'espresso_registrations_resend_registration'
-            )
-        ) {
-            $this->_process_resend_registration();
-        }
-        return $result;
-    }
-
-
-    /**
-     * Set the registration status for the given reg_id (which may or may not be an array, it gets typecast to an
-     * array). Note, this method does NOT take care of possible notifications.  That is required by calling code.
-     *
-     * @param array  $REG_IDs
-     * @param string $status
-     * @param bool   $notify  Used to indicate whether notification was requested or not.  This determines the context
-     *                        slug sent with setting the registration status.
-     * @return array (an array with 'success' key representing whether status change was successful, and 'REG_ID' as
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws EntityNotFoundException
-     */
-    protected function _set_registration_status($REG_IDs = array(), $status = '', $notify = false)
-    {
-        $success = false;
-        // typecast $REG_IDs
-        $REG_IDs = (array) $REG_IDs;
-        if (! empty($REG_IDs)) {
-            $success = true;
-            // set default status if none is passed
-            $status = $status ? $status : EEM_Registration::status_id_pending_payment;
-            $status_context = $notify
-                ? Domain::CONTEXT_REGISTRATION_STATUS_CHANGE_REGISTRATION_ADMIN_NOTIFY
-                : Domain::CONTEXT_REGISTRATION_STATUS_CHANGE_REGISTRATION_ADMIN;
-            // loop through REG_ID's and change status
-            foreach ($REG_IDs as $REG_ID) {
-                $registration = EEM_Registration::instance()->get_one_by_ID($REG_ID);
-                if ($registration instanceof EE_Registration) {
-                    $registration->set_status(
-                        $status,
-                        false,
-                        new Context(
-                            $status_context,
-                            esc_html__(
-                                'Manually triggered status change on a Registration Admin Page route.',
-                                'event_espresso'
-                            )
-                        )
-                    );
-                    $result = $registration->save();
-                    // verifying explicit fails because update *may* just return 0 for 0 rows affected
-                    $success = $result !== false ? $success : false;
-                }
-            }
-        }
-
-        // return $success and processed registrations
-        return array('REG_ID' => $REG_IDs, 'success' => $success);
-    }
-
-
-    /**
-     * Common logic for setting up success message and redirecting to appropriate route
-     *
-     * @param  string $STS_ID status id for the registration changed to
-     * @param   bool  $notify indicates whether the _set_registration_status_from_request does notifications or not.
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _reg_status_change_return($STS_ID, $notify = false)
-    {
-        $result = ! empty($STS_ID) ? $this->_set_registration_status_from_request($STS_ID, $notify)
-            : array('success' => false);
-        $success = isset($result['success']) && $result['success'];
-        // setup success message
-        if ($success) {
-            if (is_array($result['REG_ID']) && count($result['REG_ID']) === 1) {
-                $msg = sprintf(
-                    esc_html__('Registration status has been set to %s', 'event_espresso'),
-                    EEH_Template::pretty_status($STS_ID, false, 'lower')
-                );
-            } else {
-                $msg = sprintf(
-                    esc_html__('Registrations have been set to %s.', 'event_espresso'),
-                    EEH_Template::pretty_status($STS_ID, false, 'lower')
-                );
-            }
-            EE_Error::add_success($msg);
-        } else {
-            EE_Error::add_error(
-                esc_html__(
-                    'Something went wrong, and the status was not changed',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __LINE__,
-                __FUNCTION__
-            );
-        }
-        if (isset($this->_req_data['return']) && $this->_req_data['return'] == 'view_registration') {
-            $route = array('action' => 'view_registration', '_REG_ID' => reset($result['REG_ID']));
-        } else {
-            $route = array('action' => 'default');
-        }
-        // unset nonces
-        foreach ($this->_req_data as $ref => $value) {
-            if (strpos($ref, 'nonce') !== false) {
-                unset($this->_req_data[ $ref ]);
-                continue;
-            }
-            $value = is_array($value) ? array_map('urlencode', $value) : urlencode($value);
-            $this->_req_data[ $ref ] = $value;
-        }
-        // merge request vars so that the reloaded list table contains any existing filter query params
-        $route = array_merge($this->_req_data, $route);
-        $this->_redirect_after_action($success, '', '', $route, true);
-    }
-
-
-    /**
-     * incoming reg status change from reg details page.
-     *
-     * @return void
-     */
-    protected function _change_reg_status()
-    {
-        $this->_req_data['return'] = 'view_registration';
-        // set notify based on whether the send notifications toggle is set or not
-        $notify = ! empty($this->_req_data['reg_status_change_form']['send_notifications']);
-        // $notify = ! empty( $this->_req_data['txn_reg_status_change']['send_notifications'] );
-        $this->_req_data['reg_status_change_form']['reg_status'] = isset($this->_req_data['reg_status_change_form']['reg_status'])
-            ? $this->_req_data['reg_status_change_form']['reg_status'] : '';
-        switch ($this->_req_data['reg_status_change_form']['reg_status']) {
-            case EEM_Registration::status_id_approved:
-            case EEH_Template::pretty_status(EEM_Registration::status_id_approved, false, 'sentence'):
-                $this->approve_registration($notify);
-                break;
-            case EEM_Registration::status_id_pending_payment:
-            case EEH_Template::pretty_status(EEM_Registration::status_id_pending_payment, false, 'sentence'):
-                $this->pending_registration($notify);
-                break;
-            case EEM_Registration::status_id_not_approved:
-            case EEH_Template::pretty_status(EEM_Registration::status_id_not_approved, false, 'sentence'):
-                $this->not_approve_registration($notify);
-                break;
-            case EEM_Registration::status_id_declined:
-            case EEH_Template::pretty_status(EEM_Registration::status_id_declined, false, 'sentence'):
-                $this->decline_registration($notify);
-                break;
-            case EEM_Registration::status_id_cancelled:
-            case EEH_Template::pretty_status(EEM_Registration::status_id_cancelled, false, 'sentence'):
-                $this->cancel_registration($notify);
-                break;
-            case EEM_Registration::status_id_wait_list:
-            case EEH_Template::pretty_status(EEM_Registration::status_id_wait_list, false, 'sentence'):
-                $this->wait_list_registration($notify);
-                break;
-            case EEM_Registration::status_id_incomplete:
-            default:
-                $result['success'] = false;
-                unset($this->_req_data['return']);
-                $this->_reg_status_change_return('', false);
-                break;
-        }
-    }
-
-
-    /**
-     * Callback for bulk action routes.
-     * Note: although we could just register the singular route callbacks for each bulk action route as well, this
-     * method was chosen so there is one central place all the registration status bulk actions are going through.
-     * Potentially, this provides an easier place to locate logic that is specific to these bulk actions (as opposed to
-     * when an action is happening on just a single registration).
-     *
-     * @param      $action
-     * @param bool $notify
-     */
-    protected function bulk_action_on_registrations($action, $notify = false)
-    {
-        do_action(
-            'AHEE__Registrations_Admin_Page__bulk_action_on_registrations__before_execution',
-            $this,
-            $action,
-            $notify
-        );
-        $method = $action . '_registration';
-        if (method_exists($this, $method)) {
-            $this->$method($notify);
-        }
-    }
-
-
-    /**
-     * approve_registration
-     *
-     * @access protected
-     * @param bool $notify whether or not to notify the registrant about their approval.
-     * @return void
-     */
-    protected function approve_registration($notify = false)
-    {
-        $this->_reg_status_change_return(EEM_Registration::status_id_approved, $notify);
-    }
-
-
-    /**
-     *        decline_registration
-     *
-     * @access protected
-     * @param bool $notify whether or not to notify the registrant about their status change.
-     * @return void
-     */
-    protected function decline_registration($notify = false)
-    {
-        $this->_reg_status_change_return(EEM_Registration::status_id_declined, $notify);
-    }
-
-
-    /**
-     *        cancel_registration
-     *
-     * @access protected
-     * @param bool $notify whether or not to notify the registrant about their status change.
-     * @return void
-     */
-    protected function cancel_registration($notify = false)
-    {
-        $this->_reg_status_change_return(EEM_Registration::status_id_cancelled, $notify);
-    }
-
-
-    /**
-     *        not_approve_registration
-     *
-     * @access protected
-     * @param bool $notify whether or not to notify the registrant about their status change.
-     * @return void
-     */
-    protected function not_approve_registration($notify = false)
-    {
-        $this->_reg_status_change_return(EEM_Registration::status_id_not_approved, $notify);
-    }
-
-
-    /**
-     *        decline_registration
-     *
-     * @access protected
-     * @param bool $notify whether or not to notify the registrant about their status change.
-     * @return void
-     */
-    protected function pending_registration($notify = false)
-    {
-        $this->_reg_status_change_return(EEM_Registration::status_id_pending_payment, $notify);
-    }
-
-
-    /**
-     * waitlist_registration
-     *
-     * @access protected
-     * @param bool $notify whether or not to notify the registrant about their status change.
-     * @return void
-     */
-    protected function wait_list_registration($notify = false)
-    {
-        $this->_reg_status_change_return(EEM_Registration::status_id_wait_list, $notify);
-    }
-
-
-    /**
-     *        generates HTML for the Registration main meta box
-     *
-     * @access public
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @throws EntityNotFoundException
-     */
-    public function _reg_details_meta_box()
-    {
-        EEH_Autoloader::register_line_item_display_autoloaders();
-        EEH_Autoloader::register_line_item_filter_autoloaders();
-        EE_Registry::instance()->load_helper('Line_Item');
-        $transaction = $this->_registration->transaction() ? $this->_registration->transaction()
-            : EE_Transaction::new_instance();
-        $this->_session = $transaction->session_data();
-        $filters = new EE_Line_Item_Filter_Collection();
-        // $filters->add( new EE_Non_Zero_Line_Item_Filter() );
-        $filters->add(new EE_Single_Registration_Line_Item_Filter($this->_registration));
-        $line_item_filter_processor = new EE_Line_Item_Filter_Processor(
-            $filters,
-            $transaction->total_line_item()
-        );
-        $filtered_line_item_tree = $line_item_filter_processor->process();
-        $line_item_display = new EE_Line_Item_Display(
-            'reg_admin_table',
-            'EE_Admin_Table_Registration_Line_Item_Display_Strategy'
-        );
-        $this->_template_args['line_item_table'] = $line_item_display->display_line_item(
-            $filtered_line_item_tree,
-            array('EE_Registration' => $this->_registration)
-        );
-        $attendee = $this->_registration->attendee();
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_read_transaction',
-            'espresso_transactions_view_transaction'
-        )) {
-            $this->_template_args['view_transaction_button'] = EEH_Template::get_button_or_link(
-                EE_Admin_Page::add_query_args_and_nonce(
-                    array(
-                        'action' => 'view_transaction',
-                        'TXN_ID' => $transaction->ID(),
-                    ),
-                    TXN_ADMIN_URL
-                ),
-                esc_html__(' View Transaction', 'event_espresso'),
-                'button secondary-button right',
-                'dashicons dashicons-cart'
-            );
-        } else {
-            $this->_template_args['view_transaction_button'] = '';
-        }
-        if ($attendee instanceof EE_Attendee
-            && EE_Registry::instance()->CAP->current_user_can(
-                'ee_send_message',
-                'espresso_registrations_resend_registration'
-            )
-        ) {
-            $this->_template_args['resend_registration_button'] = EEH_Template::get_button_or_link(
-                EE_Admin_Page::add_query_args_and_nonce(
-                    array(
-                        'action'      => 'resend_registration',
-                        '_REG_ID'     => $this->_registration->ID(),
-                        'redirect_to' => 'view_registration',
-                    ),
-                    REG_ADMIN_URL
-                ),
-                esc_html__(' Resend Registration', 'event_espresso'),
-                'button secondary-button right',
-                'dashicons dashicons-email-alt'
-            );
-        } else {
-            $this->_template_args['resend_registration_button'] = '';
-        }
-        $this->_template_args['currency_sign'] = EE_Registry::instance()->CFG->currency->sign;
-        $payment = $transaction->get_first_related('Payment');
-        $payment = ! $payment instanceof EE_Payment
-            ? EE_Payment::new_instance()
-            : $payment;
-        $payment_method = $payment->get_first_related('Payment_Method');
-        $payment_method = ! $payment_method instanceof EE_Payment_Method
-            ? EE_Payment_Method::new_instance()
-            : $payment_method;
-        $reg_details = array(
-            'payment_method'       => $payment_method->name(),
-            'response_msg'         => $payment->gateway_response(),
-            'registration_id'      => $this->_registration->get('REG_code'),
-            'registration_session' => $this->_registration->session_ID(),
-            'ip_address'           => isset($this->_session['ip_address']) ? $this->_session['ip_address'] : '',
-            'user_agent'           => isset($this->_session['user_agent']) ? $this->_session['user_agent'] : '',
-        );
-        if (isset($reg_details['registration_id'])) {
-            $this->_template_args['reg_details']['registration_id']['value'] = $reg_details['registration_id'];
-            $this->_template_args['reg_details']['registration_id']['label'] = esc_html__(
-                'Registration ID',
-                'event_espresso'
-            );
-            $this->_template_args['reg_details']['registration_id']['class'] = 'regular-text';
-        }
-        if (isset($reg_details['payment_method'])) {
-            $this->_template_args['reg_details']['payment_method']['value'] = $reg_details['payment_method'];
-            $this->_template_args['reg_details']['payment_method']['label'] = esc_html__(
-                'Most Recent Payment Method',
-                'event_espresso'
-            );
-            $this->_template_args['reg_details']['payment_method']['class'] = 'regular-text';
-            $this->_template_args['reg_details']['response_msg']['value'] = $reg_details['response_msg'];
-            $this->_template_args['reg_details']['response_msg']['label'] = esc_html__(
-                'Payment method response',
-                'event_espresso'
-            );
-            $this->_template_args['reg_details']['response_msg']['class'] = 'regular-text';
-        }
-        $this->_template_args['reg_details']['registration_session']['value'] = $reg_details['registration_session'];
-        $this->_template_args['reg_details']['registration_session']['label'] = esc_html__(
-            'Registration Session',
-            'event_espresso'
-        );
-        $this->_template_args['reg_details']['registration_session']['class'] = 'regular-text';
-        $this->_template_args['reg_details']['ip_address']['value'] = $reg_details['ip_address'];
-        $this->_template_args['reg_details']['ip_address']['label'] = esc_html__(
-            'Registration placed from IP',
-            'event_espresso'
-        );
-        $this->_template_args['reg_details']['ip_address']['class'] = 'regular-text';
-        $this->_template_args['reg_details']['user_agent']['value'] = $reg_details['user_agent'];
-        $this->_template_args['reg_details']['user_agent']['label'] = esc_html__(
-            'Registrant User Agent',
-            'event_espresso'
-        );
-        $this->_template_args['reg_details']['user_agent']['class'] = 'large-text';
-        $this->_template_args['event_link'] = EE_Admin_Page::add_query_args_and_nonce(
-            array(
-                'action'   => 'default',
-                'event_id' => $this->_registration->event_ID(),
-            ),
-            REG_ADMIN_URL
-        );
-        $this->_template_args['REG_ID'] = $this->_registration->ID();
-        $this->_template_args['event_id'] = $this->_registration->event_ID();
-        $template_path =
-            REG_TEMPLATE_PATH . 'reg_admin_details_main_meta_box_reg_details.template.php';
-        echo EEH_Template::display_template($template_path, $this->_template_args, true);
-    }
-
-
-    /**
-     * generates HTML for the Registration Questions meta box.
-     * If pre-4.8.32.rc.000 hooks are used, uses old methods (with its filters),
-     * otherwise uses new forms system
-     *
-     * @access public
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    public function _reg_questions_meta_box()
-    {
-        // allow someone to override this method entirely
-        if (apply_filters(
-            'FHEE__Registrations_Admin_Page___reg_questions_meta_box__do_default',
-            true,
-            $this,
-            $this->_registration
-        )) {
-            $form = $this->_get_reg_custom_questions_form(
-                $this->_registration->ID()
-            );
-            $this->_template_args['att_questions'] = count($form->subforms()) > 0
-                ? $form->get_html_and_js()
-                : '';
-            $this->_template_args['reg_questions_form_action'] = 'edit_registration';
-            $this->_template_args['REG_ID'] = $this->_registration->ID();
-            $template_path =
-                REG_TEMPLATE_PATH . 'reg_admin_details_main_meta_box_reg_questions.template.php';
-            echo EEH_Template::display_template($template_path, $this->_template_args, true);
-        }
-    }
-
-
-    /**
-     * form_before_question_group
-     *
-     * @deprecated    as of 4.8.32.rc.000
-     * @access        public
-     * @param        string $output
-     * @return        string
-     */
-    public function form_before_question_group($output)
-    {
-        EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FUNCTION__,
-            esc_html__(
-                'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
-                'event_espresso'
-            ),
-            '4.8.32.rc.000'
-        );
-        return '
+		if (! empty($registration_status)) {
+			$where['STS_ID'] = $registration_status;
+		} else {
+			// make sure we exclude incomplete registrations, but only if not trashed.
+			if ($view === 'trash') {
+				$where['REG_deleted'] = true;
+			} elseif ($view === 'incomplete') {
+				$where['STS_ID'] = EEM_Registration::status_id_incomplete;
+			} else {
+				$where['STS_ID'] = array('!=', EEM_Registration::status_id_incomplete);
+			}
+		}
+		return $where;
+	}
+
+
+	/**
+	 * Adds any provided date restraints to the where conditions for the registrations query.
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _add_date_to_where_conditions(array $request)
+	{
+		$where = array();
+		$view = EEH_Array::is_set($request, 'status', '');
+		$month_range = ! empty($request['month_range'])
+			? sanitize_text_field($request['month_range'])
+			: '';
+		$retrieve_for_today = $view === 'today';
+		$retrieve_for_this_month = $view === 'month';
+
+		if ($retrieve_for_today) {
+			$now = date('Y-m-d', current_time('timestamp'));
+			$where['REG_date'] = array(
+				'BETWEEN',
+				array(
+					EEM_Registration::instance()->convert_datetime_for_query(
+						'REG_date',
+						$now . ' 00:00:00',
+						'Y-m-d H:i:s'
+					),
+					EEM_Registration::instance()->convert_datetime_for_query(
+						'REG_date',
+						$now . ' 23:59:59',
+						'Y-m-d H:i:s'
+					),
+				),
+			);
+		} elseif ($retrieve_for_this_month) {
+			$current_year_and_month = date('Y-m', current_time('timestamp'));
+			$days_this_month = date('t', current_time('timestamp'));
+			$where['REG_date'] = array(
+				'BETWEEN',
+				array(
+					EEM_Registration::instance()->convert_datetime_for_query(
+						'REG_date',
+						$current_year_and_month . '-01 00:00:00',
+						'Y-m-d H:i:s'
+					),
+					EEM_Registration::instance()->convert_datetime_for_query(
+						'REG_date',
+						$current_year_and_month . '-' . $days_this_month . ' 23:59:59',
+						'Y-m-d H:i:s'
+					),
+				),
+			);
+		} elseif ($month_range) {
+			$pieces = explode(' ', $month_range, 3);
+			$month_requested = ! empty($pieces[0])
+				? date('m', \EEH_DTT_Helper::first_of_month_timestamp($pieces[0]))
+				: '';
+			$year_requested = ! empty($pieces[1])
+				? $pieces[1]
+				: '';
+			// if there is not a month or year then we can't go further
+			if ($month_requested && $year_requested) {
+				$days_in_month = date('t', strtotime($year_requested . '-' . $month_requested . '-' . '01'));
+				$where['REG_date'] = array(
+					'BETWEEN',
+					array(
+						EEM_Registration::instance()->convert_datetime_for_query(
+							'REG_date',
+							$year_requested . '-' . $month_requested . '-01 00:00:00',
+							'Y-m-d H:i:s'
+						),
+						EEM_Registration::instance()->convert_datetime_for_query(
+							'REG_date',
+							$year_requested . '-' . $month_requested . '-' . $days_in_month . ' 23:59:59',
+							'Y-m-d H:i:s'
+						),
+					),
+				);
+			}
+		}
+		return $where;
+	}
+
+
+	/**
+	 * Adds any provided search restraints to the where conditions for the registrations query
+	 *
+	 * @param array $request usually the same as $this->_req_data but not necessarily
+	 * @return array
+	 */
+	protected function _add_search_to_where_conditions(array $request)
+	{
+		$where = array();
+		if (! empty($request['s'])) {
+			$search_string = '%' . sanitize_text_field($request['s']) . '%';
+			$where['OR*search_conditions'] = array(
+				'Event.EVT_name'                          => array('LIKE', $search_string),
+				'Event.EVT_desc'                          => array('LIKE', $search_string),
+				'Event.EVT_short_desc'                    => array('LIKE', $search_string),
+				'Attendee.ATT_full_name'                  => array('LIKE', $search_string),
+				'Attendee.ATT_fname'                      => array('LIKE', $search_string),
+				'Attendee.ATT_lname'                      => array('LIKE', $search_string),
+				'Attendee.ATT_short_bio'                  => array('LIKE', $search_string),
+				'Attendee.ATT_email'                      => array('LIKE', $search_string),
+				'Attendee.ATT_address'                    => array('LIKE', $search_string),
+				'Attendee.ATT_address2'                   => array('LIKE', $search_string),
+				'Attendee.ATT_city'                       => array('LIKE', $search_string),
+				'REG_final_price'                         => array('LIKE', $search_string),
+				'REG_code'                                => array('LIKE', $search_string),
+				'REG_count'                               => array('LIKE', $search_string),
+				'REG_group_size'                          => array('LIKE', $search_string),
+				'Ticket.TKT_name'                         => array('LIKE', $search_string),
+				'Ticket.TKT_description'                  => array('LIKE', $search_string),
+				'Transaction.Payment.PAY_txn_id_chq_nmbr' => array('LIKE', $search_string),
+			);
+		}
+		return $where;
+	}
+
+
+	/**
+	 * Sets up the where conditions for the registrations query.
+	 *
+	 * @param array $request
+	 * @return array
+	 * @throws EE_Error
+	 */
+	protected function _get_where_conditions_for_registrations_query($request)
+	{
+		return apply_filters(
+			'FHEE__Registrations_Admin_Page___get_where_conditions_for_registrations_query',
+			array_merge(
+				$this->addAttendeeIdToWhereConditions($request),
+				$this->_add_event_id_to_where_conditions($request),
+				$this->_add_category_id_to_where_conditions($request),
+				$this->_add_datetime_id_to_where_conditions($request),
+				$this->_add_registration_status_to_where_conditions($request),
+				$this->_add_date_to_where_conditions($request),
+				$this->_add_search_to_where_conditions($request)
+			),
+			$request
+		);
+	}
+
+
+	/**
+	 * Sets up the orderby for the registrations query.
+	 *
+	 * @return array
+	 */
+	protected function _get_orderby_for_registrations_query()
+	{
+		$orderby_field = ! empty($this->_req_data['orderby'])
+			? sanitize_text_field($this->_req_data['orderby'])
+			: '_REG_date';
+		switch ($orderby_field) {
+			case '_REG_ID':
+				$orderby = array('REG_ID');
+				break;
+			case '_Reg_status':
+				$orderby = array('STS_ID');
+				break;
+			case 'ATT_fname':
+				$orderby = array('Attendee.ATT_fname', 'Attendee.ATT_lname');
+				break;
+			case 'ATT_lname':
+				$orderby = array('Attendee.ATT_lname', 'Attendee.ATT_fname');
+				break;
+			case 'event_name':
+				$orderby = array('Event.EVT_name');
+				break;
+			case 'DTT_EVT_start':
+				$orderby = array('Event.Datetime.DTT_EVT_start');
+				break;
+			case '_REG_date':
+				$orderby = array('REG_date');
+				break;
+			default:
+				$orderby = array($orderby_field);
+				break;
+		}
+
+		// order
+		$order = ! empty($this->_req_data['order'])
+			? sanitize_text_field($this->_req_data['order'])
+			: 'DESC';
+		$orderby = array_combine(
+			$orderby,
+			array_fill(0, count($orderby), $order)
+		);
+		// because there are many registrations with the same date, define
+		// a secondary way to order them, otherwise MySQL seems to be a bit random
+		if (empty($orderby['REG_ID'])) {
+			$orderby['REG_ID'] = $order;
+		}
+
+		$orderby = apply_filters(
+			'FHEE__Registrations_Admin_Page___get_orderby_for_registrations_query',
+			$orderby,
+			$this->_req_data
+		);
+
+		return array('order_by' => $orderby);
+	}
+
+
+	/**
+	 * Sets up the limit for the registrations query.
+	 *
+	 * @param $per_page
+	 * @return array
+	 */
+	protected function _get_limit($per_page)
+	{
+		$current_page = ! empty($this->_req_data['paged'])
+			? absint($this->_req_data['paged'])
+			: 1;
+		$per_page = ! empty($this->_req_data['perpage'])
+			? $this->_req_data['perpage']
+			: $per_page;
+
+		// -1 means return all results so get out if that's set.
+		if ((int) $per_page === -1) {
+			return array();
+		}
+		$per_page = absint($per_page);
+		$offset = ($current_page - 1) * $per_page;
+		return array('limit' => array($offset, $per_page));
+	}
+
+
+	public function get_registration_status_array()
+	{
+		return self::$_reg_status;
+	}
+
+
+
+
+	/***************************************        REGISTRATION DETAILS        ***************************************/
+	/**
+	 *        generates HTML for the View Registration Details Admin page
+	 *
+	 * @access protected
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws EntityNotFoundException
+	 */
+	protected function _registration_details()
+	{
+		$this->_template_args = array();
+		$this->_set_registration_object();
+		if (is_object($this->_registration)) {
+			$transaction = $this->_registration->transaction()
+				? $this->_registration->transaction()
+				: EE_Transaction::new_instance();
+			$this->_session = $transaction->session_data();
+			$event_id = $this->_registration->event_ID();
+			$this->_template_args['reg_nmbr']['value'] = $this->_registration->ID();
+			$this->_template_args['reg_nmbr']['label'] = esc_html__('Registration Number', 'event_espresso');
+			$this->_template_args['reg_datetime']['value'] = $this->_registration->get_i18n_datetime('REG_date');
+			$this->_template_args['reg_datetime']['label'] = esc_html__('Date', 'event_espresso');
+			$this->_template_args['grand_total'] = $transaction->total();
+			$this->_template_args['currency_sign'] = EE_Registry::instance()->CFG->currency->sign;
+			// link back to overview
+			$this->_template_args['reg_overview_url'] = REG_ADMIN_URL;
+			$this->_template_args['registration'] = $this->_registration;
+			$this->_template_args['filtered_registrations_link'] = EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'action'   => 'default',
+					'event_id' => $event_id,
+				),
+				REG_ADMIN_URL
+			);
+			$this->_template_args['filtered_transactions_link'] = EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'action' => 'default',
+					'EVT_ID' => $event_id,
+					'page'   => 'espresso_transactions',
+				),
+				admin_url('admin.php')
+			);
+			$this->_template_args['event_link'] = EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'page'   => 'espresso_events',
+					'action' => 'edit',
+					'post'   => $event_id,
+				),
+				admin_url('admin.php')
+			);
+			// next and previous links
+			$next_reg = $this->_registration->next(
+				null,
+				array(),
+				'REG_ID'
+			);
+			$this->_template_args['next_registration'] = $next_reg
+				? $this->_next_link(
+					EE_Admin_Page::add_query_args_and_nonce(
+						array(
+							'action'  => 'view_registration',
+							'_REG_ID' => $next_reg['REG_ID'],
+						),
+						REG_ADMIN_URL
+					),
+					'dashicons dashicons-arrow-right ee-icon-size-22'
+				)
+				: '';
+			$previous_reg = $this->_registration->previous(
+				null,
+				array(),
+				'REG_ID'
+			);
+			$this->_template_args['previous_registration'] = $previous_reg
+				? $this->_previous_link(
+					EE_Admin_Page::add_query_args_and_nonce(
+						array(
+							'action'  => 'view_registration',
+							'_REG_ID' => $previous_reg['REG_ID'],
+						),
+						REG_ADMIN_URL
+					),
+					'dashicons dashicons-arrow-left ee-icon-size-22'
+				)
+				: '';
+			// grab header
+			$template_path = REG_TEMPLATE_PATH . 'reg_admin_details_header.template.php';
+			$this->_template_args['REG_ID'] = $this->_registration->ID();
+			$this->_template_args['admin_page_header'] = EEH_Template::display_template(
+				$template_path,
+				$this->_template_args,
+				true
+			);
+		} else {
+			$this->_template_args['admin_page_header'] = $this->display_espresso_notices();
+		}
+		// the details template wrapper
+		$this->display_admin_page_with_sidebar();
+	}
+
+
+	protected function _registration_details_metaboxes()
+	{
+		do_action('AHEE__Registrations_Admin_Page___registration_details_metabox__start', $this);
+		$this->_set_registration_object();
+		$attendee = $this->_registration instanceof EE_Registration ? $this->_registration->attendee() : null;
+		add_meta_box(
+			'edit-reg-status-mbox',
+			esc_html__('Registration Status', 'event_espresso'),
+			array($this, 'set_reg_status_buttons_metabox'),
+			$this->wp_page_slug,
+			'normal',
+			'high'
+		);
+		add_meta_box(
+			'edit-reg-details-mbox',
+			esc_html__('Registration Details', 'event_espresso'),
+			array($this, '_reg_details_meta_box'),
+			$this->wp_page_slug,
+			'normal',
+			'high'
+		);
+		if ($attendee instanceof EE_Attendee
+			&& EE_Registry::instance()->CAP->current_user_can(
+				'ee_edit_registration',
+				'edit-reg-questions-mbox',
+				$this->_registration->ID()
+			)
+		) {
+			add_meta_box(
+				'edit-reg-questions-mbox',
+				esc_html__('Registration Form Answers', 'event_espresso'),
+				array($this, '_reg_questions_meta_box'),
+				$this->wp_page_slug,
+				'normal',
+				'high'
+			);
+		}
+		add_meta_box(
+			'edit-reg-registrant-mbox',
+			esc_html__('Contact Details', 'event_espresso'),
+			array($this, '_reg_registrant_side_meta_box'),
+			$this->wp_page_slug,
+			'side',
+			'high'
+		);
+		if ($this->_registration->group_size() > 1) {
+			add_meta_box(
+				'edit-reg-attendees-mbox',
+				esc_html__('Other Registrations in this Transaction', 'event_espresso'),
+				array($this, '_reg_attendees_meta_box'),
+				$this->wp_page_slug,
+				'normal',
+				'high'
+			);
+		}
+	}
+
+
+	/**
+	 * set_reg_status_buttons_metabox
+	 *
+	 * @access protected
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function set_reg_status_buttons_metabox()
+	{
+		$this->_set_registration_object();
+		$change_reg_status_form = $this->_generate_reg_status_change_form();
+		echo $change_reg_status_form->form_open(
+			self::add_query_args_and_nonce(
+				array(
+					'action' => 'change_reg_status',
+				),
+				REG_ADMIN_URL
+			)
+		);
+		echo $change_reg_status_form->get_html();
+		echo $change_reg_status_form->form_close();
+	}
+
+
+	/**
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 */
+	protected function _generate_reg_status_change_form()
+	{
+		return new EE_Form_Section_Proper(
+			array(
+				'name'            => 'reg_status_change_form',
+				'html_id'         => 'reg-status-change-form',
+				'layout_strategy' => new EE_Admin_Two_Column_Layout(),
+				'subsections'     => array(
+					'return'             => new EE_Hidden_Input(
+						array(
+							'name'    => 'return',
+							'default' => 'view_registration',
+						)
+					),
+					'REG_ID'             => new EE_Hidden_Input(
+						array(
+							'name'    => 'REG_ID',
+							'default' => $this->_registration->ID(),
+						)
+					),
+					'current_status'     => new EE_Form_Section_HTML(
+						EEH_HTML::tr(
+							EEH_HTML::th(
+								EEH_HTML::label(
+									EEH_HTML::strong(
+										esc_html__('Current Registration Status', 'event_espresso')
+									)
+								)
+							)
+							. EEH_HTML::td(
+								EEH_HTML::strong(
+									$this->_registration->pretty_status(),
+									'',
+									'status-' . $this->_registration->status_ID(),
+									'line-height: 1em; font-size: 1.5em; font-weight: bold;'
+								)
+							)
+						)
+					),
+					'reg_status'         => new EE_Select_Input(
+						$this->_get_reg_statuses(),
+						array(
+							'html_label_text' => esc_html__('Change Registration Status to', 'event_espresso'),
+							'default'         => $this->_registration->status_ID(),
+						)
+					),
+					'send_notifications' => new EE_Yes_No_Input(
+						array(
+							'html_label_text' => esc_html__('Send Related Messages', 'event_espresso'),
+							'default'         => false,
+							'html_help_text'  => esc_html__(
+								'If set to "Yes", then the related messages will be sent to the registrant.',
+								'event_espresso'
+							),
+						)
+					),
+					'submit'             => new EE_Submit_Input(
+						array(
+							'html_class'      => 'button-primary',
+							'html_label_text' => '&nbsp;',
+							'default'         => esc_html__('Update Registration Status', 'event_espresso'),
+						)
+					),
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * Returns an array of all the buttons for the various statuses and switch status actions
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws EntityNotFoundException
+	 */
+	protected function _get_reg_statuses()
+	{
+		$reg_status_array = EEM_Registration::instance()->reg_status_array();
+		unset($reg_status_array[ EEM_Registration::status_id_incomplete ]);
+		// get current reg status
+		$current_status = $this->_registration->status_ID();
+		// is registration for free event? This will determine whether to display the pending payment option
+		if ($current_status !== EEM_Registration::status_id_pending_payment
+			&& EEH_Money::compare_floats($this->_registration->ticket()->price(), 0.00)
+		) {
+			unset($reg_status_array[ EEM_Registration::status_id_pending_payment ]);
+		}
+		return EEM_Status::instance()->localized_status($reg_status_array, false, 'sentence');
+	}
+
+
+	/**
+	 * This method is used when using _REG_ID from request which may or may not be an array of reg_ids.
+	 *
+	 * @param bool $status REG status given for changing registrations to.
+	 * @param bool $notify Whether to send messages notifications or not.
+	 * @return array (array with reg_id(s) updated and whether update was successful.
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws EntityNotFoundException
+	 */
+	protected function _set_registration_status_from_request($status = false, $notify = false)
+	{
+		if (isset($this->_req_data['reg_status_change_form'])) {
+			$REG_IDs = isset($this->_req_data['reg_status_change_form']['REG_ID'])
+				? (array) $this->_req_data['reg_status_change_form']['REG_ID']
+				: array();
+		} else {
+			$REG_IDs = isset($this->_req_data['_REG_ID'])
+				? (array) $this->_req_data['_REG_ID']
+				: array();
+		}
+		// sanitize $REG_IDs
+		$REG_IDs = array_map('absint', $REG_IDs);
+		// and remove empty entries
+		$REG_IDs = array_filter($REG_IDs);
+
+		$result = $this->_set_registration_status($REG_IDs, $status, $notify);
+
+		/**
+		 * Set and filter $_req_data['_REG_ID'] for any potential future messages notifications.
+		 * Currently this value is used downstream by the _process_resend_registration method.
+		 *
+		 * @param int|array                $registration_ids The registration ids that have had their status changed successfully.
+		 * @param bool                     $status           The status registrations were changed to.
+		 * @param bool                     $success          If the status was changed successfully for all registrations.
+		 * @param Registrations_Admin_Page $admin_page_object
+		 */
+		$this->_req_data['_REG_ID'] = apply_filters(
+			'FHEE__Registrations_Admin_Page___set_registration_status_from_request__REG_IDs',
+			$result['REG_ID'],
+			$status,
+			$result['success'],
+			$this
+		);
+
+		// notify?
+		if ($notify
+			&& $result['success']
+			&& ! empty($this->_req_data['_REG_ID'])
+			&& EE_Registry::instance()->CAP->current_user_can(
+				'ee_send_message',
+				'espresso_registrations_resend_registration'
+			)
+		) {
+			$this->_process_resend_registration();
+		}
+		return $result;
+	}
+
+
+	/**
+	 * Set the registration status for the given reg_id (which may or may not be an array, it gets typecast to an
+	 * array). Note, this method does NOT take care of possible notifications.  That is required by calling code.
+	 *
+	 * @param array  $REG_IDs
+	 * @param string $status
+	 * @param bool   $notify  Used to indicate whether notification was requested or not.  This determines the context
+	 *                        slug sent with setting the registration status.
+	 * @return array (an array with 'success' key representing whether status change was successful, and 'REG_ID' as
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws EntityNotFoundException
+	 */
+	protected function _set_registration_status($REG_IDs = array(), $status = '', $notify = false)
+	{
+		$success = false;
+		// typecast $REG_IDs
+		$REG_IDs = (array) $REG_IDs;
+		if (! empty($REG_IDs)) {
+			$success = true;
+			// set default status if none is passed
+			$status = $status ? $status : EEM_Registration::status_id_pending_payment;
+			$status_context = $notify
+				? Domain::CONTEXT_REGISTRATION_STATUS_CHANGE_REGISTRATION_ADMIN_NOTIFY
+				: Domain::CONTEXT_REGISTRATION_STATUS_CHANGE_REGISTRATION_ADMIN;
+			// loop through REG_ID's and change status
+			foreach ($REG_IDs as $REG_ID) {
+				$registration = EEM_Registration::instance()->get_one_by_ID($REG_ID);
+				if ($registration instanceof EE_Registration) {
+					$registration->set_status(
+						$status,
+						false,
+						new Context(
+							$status_context,
+							esc_html__(
+								'Manually triggered status change on a Registration Admin Page route.',
+								'event_espresso'
+							)
+						)
+					);
+					$result = $registration->save();
+					// verifying explicit fails because update *may* just return 0 for 0 rows affected
+					$success = $result !== false ? $success : false;
+				}
+			}
+		}
+
+		// return $success and processed registrations
+		return array('REG_ID' => $REG_IDs, 'success' => $success);
+	}
+
+
+	/**
+	 * Common logic for setting up success message and redirecting to appropriate route
+	 *
+	 * @param  string $STS_ID status id for the registration changed to
+	 * @param   bool  $notify indicates whether the _set_registration_status_from_request does notifications or not.
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _reg_status_change_return($STS_ID, $notify = false)
+	{
+		$result = ! empty($STS_ID) ? $this->_set_registration_status_from_request($STS_ID, $notify)
+			: array('success' => false);
+		$success = isset($result['success']) && $result['success'];
+		// setup success message
+		if ($success) {
+			if (is_array($result['REG_ID']) && count($result['REG_ID']) === 1) {
+				$msg = sprintf(
+					esc_html__('Registration status has been set to %s', 'event_espresso'),
+					EEH_Template::pretty_status($STS_ID, false, 'lower')
+				);
+			} else {
+				$msg = sprintf(
+					esc_html__('Registrations have been set to %s.', 'event_espresso'),
+					EEH_Template::pretty_status($STS_ID, false, 'lower')
+				);
+			}
+			EE_Error::add_success($msg);
+		} else {
+			EE_Error::add_error(
+				esc_html__(
+					'Something went wrong, and the status was not changed',
+					'event_espresso'
+				),
+				__FILE__,
+				__LINE__,
+				__FUNCTION__
+			);
+		}
+		if (isset($this->_req_data['return']) && $this->_req_data['return'] == 'view_registration') {
+			$route = array('action' => 'view_registration', '_REG_ID' => reset($result['REG_ID']));
+		} else {
+			$route = array('action' => 'default');
+		}
+		// unset nonces
+		foreach ($this->_req_data as $ref => $value) {
+			if (strpos($ref, 'nonce') !== false) {
+				unset($this->_req_data[ $ref ]);
+				continue;
+			}
+			$value = is_array($value) ? array_map('urlencode', $value) : urlencode($value);
+			$this->_req_data[ $ref ] = $value;
+		}
+		// merge request vars so that the reloaded list table contains any existing filter query params
+		$route = array_merge($this->_req_data, $route);
+		$this->_redirect_after_action($success, '', '', $route, true);
+	}
+
+
+	/**
+	 * incoming reg status change from reg details page.
+	 *
+	 * @return void
+	 */
+	protected function _change_reg_status()
+	{
+		$this->_req_data['return'] = 'view_registration';
+		// set notify based on whether the send notifications toggle is set or not
+		$notify = ! empty($this->_req_data['reg_status_change_form']['send_notifications']);
+		// $notify = ! empty( $this->_req_data['txn_reg_status_change']['send_notifications'] );
+		$this->_req_data['reg_status_change_form']['reg_status'] = isset($this->_req_data['reg_status_change_form']['reg_status'])
+			? $this->_req_data['reg_status_change_form']['reg_status'] : '';
+		switch ($this->_req_data['reg_status_change_form']['reg_status']) {
+			case EEM_Registration::status_id_approved:
+			case EEH_Template::pretty_status(EEM_Registration::status_id_approved, false, 'sentence'):
+				$this->approve_registration($notify);
+				break;
+			case EEM_Registration::status_id_pending_payment:
+			case EEH_Template::pretty_status(EEM_Registration::status_id_pending_payment, false, 'sentence'):
+				$this->pending_registration($notify);
+				break;
+			case EEM_Registration::status_id_not_approved:
+			case EEH_Template::pretty_status(EEM_Registration::status_id_not_approved, false, 'sentence'):
+				$this->not_approve_registration($notify);
+				break;
+			case EEM_Registration::status_id_declined:
+			case EEH_Template::pretty_status(EEM_Registration::status_id_declined, false, 'sentence'):
+				$this->decline_registration($notify);
+				break;
+			case EEM_Registration::status_id_cancelled:
+			case EEH_Template::pretty_status(EEM_Registration::status_id_cancelled, false, 'sentence'):
+				$this->cancel_registration($notify);
+				break;
+			case EEM_Registration::status_id_wait_list:
+			case EEH_Template::pretty_status(EEM_Registration::status_id_wait_list, false, 'sentence'):
+				$this->wait_list_registration($notify);
+				break;
+			case EEM_Registration::status_id_incomplete:
+			default:
+				$result['success'] = false;
+				unset($this->_req_data['return']);
+				$this->_reg_status_change_return('', false);
+				break;
+		}
+	}
+
+
+	/**
+	 * Callback for bulk action routes.
+	 * Note: although we could just register the singular route callbacks for each bulk action route as well, this
+	 * method was chosen so there is one central place all the registration status bulk actions are going through.
+	 * Potentially, this provides an easier place to locate logic that is specific to these bulk actions (as opposed to
+	 * when an action is happening on just a single registration).
+	 *
+	 * @param      $action
+	 * @param bool $notify
+	 */
+	protected function bulk_action_on_registrations($action, $notify = false)
+	{
+		do_action(
+			'AHEE__Registrations_Admin_Page__bulk_action_on_registrations__before_execution',
+			$this,
+			$action,
+			$notify
+		);
+		$method = $action . '_registration';
+		if (method_exists($this, $method)) {
+			$this->$method($notify);
+		}
+	}
+
+
+	/**
+	 * approve_registration
+	 *
+	 * @access protected
+	 * @param bool $notify whether or not to notify the registrant about their approval.
+	 * @return void
+	 */
+	protected function approve_registration($notify = false)
+	{
+		$this->_reg_status_change_return(EEM_Registration::status_id_approved, $notify);
+	}
+
+
+	/**
+	 *        decline_registration
+	 *
+	 * @access protected
+	 * @param bool $notify whether or not to notify the registrant about their status change.
+	 * @return void
+	 */
+	protected function decline_registration($notify = false)
+	{
+		$this->_reg_status_change_return(EEM_Registration::status_id_declined, $notify);
+	}
+
+
+	/**
+	 *        cancel_registration
+	 *
+	 * @access protected
+	 * @param bool $notify whether or not to notify the registrant about their status change.
+	 * @return void
+	 */
+	protected function cancel_registration($notify = false)
+	{
+		$this->_reg_status_change_return(EEM_Registration::status_id_cancelled, $notify);
+	}
+
+
+	/**
+	 *        not_approve_registration
+	 *
+	 * @access protected
+	 * @param bool $notify whether or not to notify the registrant about their status change.
+	 * @return void
+	 */
+	protected function not_approve_registration($notify = false)
+	{
+		$this->_reg_status_change_return(EEM_Registration::status_id_not_approved, $notify);
+	}
+
+
+	/**
+	 *        decline_registration
+	 *
+	 * @access protected
+	 * @param bool $notify whether or not to notify the registrant about their status change.
+	 * @return void
+	 */
+	protected function pending_registration($notify = false)
+	{
+		$this->_reg_status_change_return(EEM_Registration::status_id_pending_payment, $notify);
+	}
+
+
+	/**
+	 * waitlist_registration
+	 *
+	 * @access protected
+	 * @param bool $notify whether or not to notify the registrant about their status change.
+	 * @return void
+	 */
+	protected function wait_list_registration($notify = false)
+	{
+		$this->_reg_status_change_return(EEM_Registration::status_id_wait_list, $notify);
+	}
+
+
+	/**
+	 *        generates HTML for the Registration main meta box
+	 *
+	 * @access public
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @throws EntityNotFoundException
+	 */
+	public function _reg_details_meta_box()
+	{
+		EEH_Autoloader::register_line_item_display_autoloaders();
+		EEH_Autoloader::register_line_item_filter_autoloaders();
+		EE_Registry::instance()->load_helper('Line_Item');
+		$transaction = $this->_registration->transaction() ? $this->_registration->transaction()
+			: EE_Transaction::new_instance();
+		$this->_session = $transaction->session_data();
+		$filters = new EE_Line_Item_Filter_Collection();
+		// $filters->add( new EE_Non_Zero_Line_Item_Filter() );
+		$filters->add(new EE_Single_Registration_Line_Item_Filter($this->_registration));
+		$line_item_filter_processor = new EE_Line_Item_Filter_Processor(
+			$filters,
+			$transaction->total_line_item()
+		);
+		$filtered_line_item_tree = $line_item_filter_processor->process();
+		$line_item_display = new EE_Line_Item_Display(
+			'reg_admin_table',
+			'EE_Admin_Table_Registration_Line_Item_Display_Strategy'
+		);
+		$this->_template_args['line_item_table'] = $line_item_display->display_line_item(
+			$filtered_line_item_tree,
+			array('EE_Registration' => $this->_registration)
+		);
+		$attendee = $this->_registration->attendee();
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_read_transaction',
+			'espresso_transactions_view_transaction'
+		)) {
+			$this->_template_args['view_transaction_button'] = EEH_Template::get_button_or_link(
+				EE_Admin_Page::add_query_args_and_nonce(
+					array(
+						'action' => 'view_transaction',
+						'TXN_ID' => $transaction->ID(),
+					),
+					TXN_ADMIN_URL
+				),
+				esc_html__(' View Transaction', 'event_espresso'),
+				'button secondary-button right',
+				'dashicons dashicons-cart'
+			);
+		} else {
+			$this->_template_args['view_transaction_button'] = '';
+		}
+		if ($attendee instanceof EE_Attendee
+			&& EE_Registry::instance()->CAP->current_user_can(
+				'ee_send_message',
+				'espresso_registrations_resend_registration'
+			)
+		) {
+			$this->_template_args['resend_registration_button'] = EEH_Template::get_button_or_link(
+				EE_Admin_Page::add_query_args_and_nonce(
+					array(
+						'action'      => 'resend_registration',
+						'_REG_ID'     => $this->_registration->ID(),
+						'redirect_to' => 'view_registration',
+					),
+					REG_ADMIN_URL
+				),
+				esc_html__(' Resend Registration', 'event_espresso'),
+				'button secondary-button right',
+				'dashicons dashicons-email-alt'
+			);
+		} else {
+			$this->_template_args['resend_registration_button'] = '';
+		}
+		$this->_template_args['currency_sign'] = EE_Registry::instance()->CFG->currency->sign;
+		$payment = $transaction->get_first_related('Payment');
+		$payment = ! $payment instanceof EE_Payment
+			? EE_Payment::new_instance()
+			: $payment;
+		$payment_method = $payment->get_first_related('Payment_Method');
+		$payment_method = ! $payment_method instanceof EE_Payment_Method
+			? EE_Payment_Method::new_instance()
+			: $payment_method;
+		$reg_details = array(
+			'payment_method'       => $payment_method->name(),
+			'response_msg'         => $payment->gateway_response(),
+			'registration_id'      => $this->_registration->get('REG_code'),
+			'registration_session' => $this->_registration->session_ID(),
+			'ip_address'           => isset($this->_session['ip_address']) ? $this->_session['ip_address'] : '',
+			'user_agent'           => isset($this->_session['user_agent']) ? $this->_session['user_agent'] : '',
+		);
+		if (isset($reg_details['registration_id'])) {
+			$this->_template_args['reg_details']['registration_id']['value'] = $reg_details['registration_id'];
+			$this->_template_args['reg_details']['registration_id']['label'] = esc_html__(
+				'Registration ID',
+				'event_espresso'
+			);
+			$this->_template_args['reg_details']['registration_id']['class'] = 'regular-text';
+		}
+		if (isset($reg_details['payment_method'])) {
+			$this->_template_args['reg_details']['payment_method']['value'] = $reg_details['payment_method'];
+			$this->_template_args['reg_details']['payment_method']['label'] = esc_html__(
+				'Most Recent Payment Method',
+				'event_espresso'
+			);
+			$this->_template_args['reg_details']['payment_method']['class'] = 'regular-text';
+			$this->_template_args['reg_details']['response_msg']['value'] = $reg_details['response_msg'];
+			$this->_template_args['reg_details']['response_msg']['label'] = esc_html__(
+				'Payment method response',
+				'event_espresso'
+			);
+			$this->_template_args['reg_details']['response_msg']['class'] = 'regular-text';
+		}
+		$this->_template_args['reg_details']['registration_session']['value'] = $reg_details['registration_session'];
+		$this->_template_args['reg_details']['registration_session']['label'] = esc_html__(
+			'Registration Session',
+			'event_espresso'
+		);
+		$this->_template_args['reg_details']['registration_session']['class'] = 'regular-text';
+		$this->_template_args['reg_details']['ip_address']['value'] = $reg_details['ip_address'];
+		$this->_template_args['reg_details']['ip_address']['label'] = esc_html__(
+			'Registration placed from IP',
+			'event_espresso'
+		);
+		$this->_template_args['reg_details']['ip_address']['class'] = 'regular-text';
+		$this->_template_args['reg_details']['user_agent']['value'] = $reg_details['user_agent'];
+		$this->_template_args['reg_details']['user_agent']['label'] = esc_html__(
+			'Registrant User Agent',
+			'event_espresso'
+		);
+		$this->_template_args['reg_details']['user_agent']['class'] = 'large-text';
+		$this->_template_args['event_link'] = EE_Admin_Page::add_query_args_and_nonce(
+			array(
+				'action'   => 'default',
+				'event_id' => $this->_registration->event_ID(),
+			),
+			REG_ADMIN_URL
+		);
+		$this->_template_args['REG_ID'] = $this->_registration->ID();
+		$this->_template_args['event_id'] = $this->_registration->event_ID();
+		$template_path =
+			REG_TEMPLATE_PATH . 'reg_admin_details_main_meta_box_reg_details.template.php';
+		echo EEH_Template::display_template($template_path, $this->_template_args, true);
+	}
+
+
+	/**
+	 * generates HTML for the Registration Questions meta box.
+	 * If pre-4.8.32.rc.000 hooks are used, uses old methods (with its filters),
+	 * otherwise uses new forms system
+	 *
+	 * @access public
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	public function _reg_questions_meta_box()
+	{
+		// allow someone to override this method entirely
+		if (apply_filters(
+			'FHEE__Registrations_Admin_Page___reg_questions_meta_box__do_default',
+			true,
+			$this,
+			$this->_registration
+		)) {
+			$form = $this->_get_reg_custom_questions_form(
+				$this->_registration->ID()
+			);
+			$this->_template_args['att_questions'] = count($form->subforms()) > 0
+				? $form->get_html_and_js()
+				: '';
+			$this->_template_args['reg_questions_form_action'] = 'edit_registration';
+			$this->_template_args['REG_ID'] = $this->_registration->ID();
+			$template_path =
+				REG_TEMPLATE_PATH . 'reg_admin_details_main_meta_box_reg_questions.template.php';
+			echo EEH_Template::display_template($template_path, $this->_template_args, true);
+		}
+	}
+
+
+	/**
+	 * form_before_question_group
+	 *
+	 * @deprecated    as of 4.8.32.rc.000
+	 * @access        public
+	 * @param        string $output
+	 * @return        string
+	 */
+	public function form_before_question_group($output)
+	{
+		EE_Error::doing_it_wrong(
+			__CLASS__ . '::' . __FUNCTION__,
+			esc_html__(
+				'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
+				'event_espresso'
+			),
+			'4.8.32.rc.000'
+		);
+		return '
 	<table class="form-table ee-width-100">
 		<tbody>
 			';
-    }
-
-
-    /**
-     * form_after_question_group
-     *
-     * @deprecated    as of 4.8.32.rc.000
-     * @access        public
-     * @param        string $output
-     * @return        string
-     */
-    public function form_after_question_group($output)
-    {
-        EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FUNCTION__,
-            esc_html__(
-                'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
-                'event_espresso'
-            ),
-            '4.8.32.rc.000'
-        );
-        return '
+	}
+
+
+	/**
+	 * form_after_question_group
+	 *
+	 * @deprecated    as of 4.8.32.rc.000
+	 * @access        public
+	 * @param        string $output
+	 * @return        string
+	 */
+	public function form_after_question_group($output)
+	{
+		EE_Error::doing_it_wrong(
+			__CLASS__ . '::' . __FUNCTION__,
+			esc_html__(
+				'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
+				'event_espresso'
+			),
+			'4.8.32.rc.000'
+		);
+		return '
 			<tr class="hide-if-no-js">
 				<th> </th>
 				<td class="reg-admin-edit-attendee-question-td">
 					<a class="reg-admin-edit-attendee-question-lnk" href="#" title="'
-               . esc_attr__('click to edit question', 'event_espresso')
-               . '">
+			   . esc_attr__('click to edit question', 'event_espresso')
+			   . '">
 						<span class="reg-admin-edit-question-group-spn lt-grey-txt">'
-               . esc_html__('edit the above question group', 'event_espresso')
-               . '</span>
+			   . esc_html__('edit the above question group', 'event_espresso')
+			   . '</span>
 						<div class="dashicons dashicons-edit"></div>
 					</a>
 				</td>
@@ -2419,606 +2419,606 @@ 
 		</tbody>
 	</table>
 ';
-    }
-
-
-    /**
-     * form_form_field_label_wrap
-     *
-     * @deprecated    as of 4.8.32.rc.000
-     * @access        public
-     * @param        string $label
-     * @return        string
-     */
-    public function form_form_field_label_wrap($label)
-    {
-        EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FUNCTION__,
-            esc_html__(
-                'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
-                'event_espresso'
-            ),
-            '4.8.32.rc.000'
-        );
-        return '
+	}
+
+
+	/**
+	 * form_form_field_label_wrap
+	 *
+	 * @deprecated    as of 4.8.32.rc.000
+	 * @access        public
+	 * @param        string $label
+	 * @return        string
+	 */
+	public function form_form_field_label_wrap($label)
+	{
+		EE_Error::doing_it_wrong(
+			__CLASS__ . '::' . __FUNCTION__,
+			esc_html__(
+				'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
+				'event_espresso'
+			),
+			'4.8.32.rc.000'
+		);
+		return '
 			<tr>
 				<th>
 					' . $label . '
 				</th>';
-    }
-
-
-    /**
-     * form_form_field_input__wrap
-     *
-     * @deprecated    as of 4.8.32.rc.000
-     * @access        public
-     * @param        string $input
-     * @return        string
-     */
-    public function form_form_field_input__wrap($input)
-    {
-        EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FUNCTION__,
-            esc_html__(
-                'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
-                'event_espresso'
-            ),
-            '4.8.32.rc.000'
-        );
-        return '
+	}
+
+
+	/**
+	 * form_form_field_input__wrap
+	 *
+	 * @deprecated    as of 4.8.32.rc.000
+	 * @access        public
+	 * @param        string $input
+	 * @return        string
+	 */
+	public function form_form_field_input__wrap($input)
+	{
+		EE_Error::doing_it_wrong(
+			__CLASS__ . '::' . __FUNCTION__,
+			esc_html__(
+				'This method would have been protected but was used on a filter callback so needed to be public. Please discontinue usage as it will be removed soon.',
+				'event_espresso'
+			),
+			'4.8.32.rc.000'
+		);
+		return '
 				<td class="reg-admin-attendee-questions-input-td disabled-input">
 					' . $input . '
 				</td>
 			</tr>';
-    }
-
-
-    /**
-     * Updates the registration's custom questions according to the form info, if the form is submitted.
-     * If it's not a post, the "view_registrations" route will be called next on the SAME request
-     * to display the page
-     *
-     * @access protected
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _update_attendee_registration_form()
-    {
-        do_action('AHEE__Registrations_Admin_Page___update_attendee_registration_form__start', $this);
-        if ($_SERVER['REQUEST_METHOD'] == 'POST') {
-            $REG_ID = isset($this->_req_data['_REG_ID']) ? absint($this->_req_data['_REG_ID']) : false;
-            $success = $this->_save_reg_custom_questions_form($REG_ID);
-            if ($success) {
-                $what = esc_html__('Registration Form', 'event_espresso');
-                $route = $REG_ID ? array('action' => 'view_registration', '_REG_ID' => $REG_ID)
-                    : array('action' => 'default');
-                $this->_redirect_after_action($success, $what, esc_html__('updated', 'event_espresso'), $route);
-            }
-        }
-    }
-
-
-    /**
-     * Gets the form for saving registrations custom questions (if done
-     * previously retrieves the cached form object, which may have validation errors in it)
-     *
-     * @param int $REG_ID
-     * @return EE_Registration_Custom_Questions_Form
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _get_reg_custom_questions_form($REG_ID)
-    {
-        if (! $this->_reg_custom_questions_form) {
-            require_once(REG_ADMIN . 'form_sections' . DS . 'EE_Registration_Custom_Questions_Form.form.php');
-            $this->_reg_custom_questions_form = new EE_Registration_Custom_Questions_Form(
-                EEM_Registration::instance()->get_one_by_ID($REG_ID)
-            );
-            $this->_reg_custom_questions_form->_construct_finalize(null, null);
-        }
-        return $this->_reg_custom_questions_form;
-    }
-
-
-    /**
-     * Saves
-     *
-     * @access private
-     * @param bool $REG_ID
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _save_reg_custom_questions_form($REG_ID = false)
-    {
-        if (! $REG_ID) {
-            EE_Error::add_error(
-                esc_html__(
-                    'An error occurred. No registration ID was received.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        $form = $this->_get_reg_custom_questions_form($REG_ID);
-        $form->receive_form_submission($this->_req_data);
-        $success = false;
-        if ($form->is_valid()) {
-            foreach ($form->subforms() as $question_group_id => $question_group_form) {
-                foreach ($question_group_form->inputs() as $question_id => $input) {
-                    $where_conditions = array(
-                        'QST_ID' => $question_id,
-                        'REG_ID' => $REG_ID,
-                    );
-                    $possibly_new_values = array(
-                        'ANS_value' => $input->normalized_value(),
-                    );
-                    $answer = EEM_Answer::instance()->get_one(array($where_conditions));
-                    if ($answer instanceof EE_Answer) {
-                        $success = $answer->save($possibly_new_values);
-                    } else {
-                        // insert it then
-                        $cols_n_vals = array_merge($where_conditions, $possibly_new_values);
-                        $answer = EE_Answer::new_instance($cols_n_vals);
-                        $success = $answer->save();
-                    }
-                }
-            }
-        } else {
-            EE_Error::add_error($form->get_validation_error_string(), __FILE__, __FUNCTION__, __LINE__);
-        }
-        return $success;
-    }
-
-
-    /**
-     *        generates HTML for the Registration main meta box
-     *
-     * @access public
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function _reg_attendees_meta_box()
-    {
-        $REG = EEM_Registration::instance();
-        // get all other registrations on this transaction, and cache
-        // the attendees for them so we don't have to run another query using force_join
-        $registrations = $REG->get_all(
-            array(
-                array(
-                    'TXN_ID' => $this->_registration->transaction_ID(),
-                    'REG_ID' => array('!=', $this->_registration->ID()),
-                ),
-                'force_join' => array('Attendee'),
-            )
-        );
-        $this->_template_args['attendees'] = array();
-        $this->_template_args['attendee_notice'] = '';
-        if (empty($registrations)
-            || (is_array($registrations)
-                && ! EEH_Array::get_one_item_from_array($registrations))
-        ) {
-            EE_Error::add_error(
-                esc_html__(
-                    'There are no records attached to this registration. Something may have gone wrong with the registration',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $this->_template_args['attendee_notice'] = EE_Error::get_notices();
-        } else {
-            $att_nmbr = 1;
-            foreach ($registrations as $registration) {
-                /* @var $registration EE_Registration */
-                $attendee = $registration->attendee()
-                    ? $registration->attendee()
-                    : EEM_Attendee::instance()
-                                  ->create_default_object();
-                $this->_template_args['attendees'][ $att_nmbr ]['STS_ID'] = $registration->status_ID();
-                $this->_template_args['attendees'][ $att_nmbr ]['fname'] = $attendee->fname();
-                $this->_template_args['attendees'][ $att_nmbr ]['lname'] = $attendee->lname();
-                $this->_template_args['attendees'][ $att_nmbr ]['email'] = $attendee->email();
-                $this->_template_args['attendees'][ $att_nmbr ]['final_price'] = $registration->final_price();
-                $this->_template_args['attendees'][ $att_nmbr ]['address'] = implode(
-                    ', ',
-                    $attendee->full_address_as_array()
-                );
-                $this->_template_args['attendees'][ $att_nmbr ]['att_link'] = self::add_query_args_and_nonce(
-                    array(
-                        'action' => 'edit_attendee',
-                        'post'   => $attendee->ID(),
-                    ),
-                    REG_ADMIN_URL
-                );
-                $this->_template_args['attendees'][ $att_nmbr ]['event_name'] = $registration->event_obj()->name();
-                $att_nmbr++;
-            }
-            $this->_template_args['currency_sign'] = EE_Registry::instance()->CFG->currency->sign;
-        }
-        $template_path = REG_TEMPLATE_PATH . 'reg_admin_details_main_meta_box_attendees.template.php';
-        echo EEH_Template::display_template($template_path, $this->_template_args, true);
-    }
-
-
-    /**
-     *        generates HTML for the Edit Registration side meta box
-     *
-     * @access public
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function _reg_registrant_side_meta_box()
-    {
-        /*@var $attendee EE_Attendee */
-        $att_check = $this->_registration->attendee();
-        $attendee = $att_check instanceof EE_Attendee ? $att_check : EEM_Attendee::instance()->create_default_object();
-        // now let's determine if this is not the primary registration.  If it isn't then we set the
-        // primary_registration object for reference BUT ONLY if the Attendee object loaded is not the same as the
-        // primary registration object (that way we know if we need to show create button or not)
-        if (! $this->_registration->is_primary_registrant()) {
-            $primary_registration = $this->_registration->get_primary_registration();
-            $primary_attendee = $primary_registration instanceof EE_Registration ? $primary_registration->attendee()
-                : null;
-            if (! $primary_attendee instanceof EE_Attendee || $attendee->ID() !== $primary_attendee->ID()) {
-                // in here?  This means the displayed registration is not the primary registrant but ALREADY HAS its own
-                // custom attendee object so let's not worry about the primary reg.
-                $primary_registration = null;
-            }
-        } else {
-            $primary_registration = null;
-        }
-        $this->_template_args['ATT_ID'] = $attendee->ID();
-        $this->_template_args['fname'] = $attendee->fname();
-        $this->_template_args['lname'] = $attendee->lname();
-        $this->_template_args['email'] = $attendee->email();
-        $this->_template_args['phone'] = $attendee->phone();
-        $this->_template_args['formatted_address'] = EEH_Address::format($attendee);
-        // edit link
-        $this->_template_args['att_edit_link'] = EE_Admin_Page::add_query_args_and_nonce(
-            array(
-                'action' => 'edit_attendee',
-                'post'   => $attendee->ID(),
-            ),
-            REG_ADMIN_URL
-        );
-        $this->_template_args['att_edit_label'] = esc_html__('View/Edit Contact', 'event_espresso');
-        // create link
-        $this->_template_args['create_link'] = $primary_registration instanceof EE_Registration
-            ? EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'action'  => 'duplicate_attendee',
-                    '_REG_ID' => $this->_registration->ID(),
-                ),
-                REG_ADMIN_URL
-            ) : '';
-        $this->_template_args['create_label'] = esc_html__('Create Contact', 'event_espresso');
-        $this->_template_args['att_check'] = $att_check;
-        $template_path = REG_TEMPLATE_PATH . 'reg_admin_details_side_meta_box_registrant.template.php';
-        echo EEH_Template::display_template($template_path, $this->_template_args, true);
-    }
-
-
-    /**
-     * trash or restore registrations
-     *
-     * @param  boolean $trash whether to archive or restore
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws RuntimeException
-     * @access protected
-     */
-    protected function _trash_or_restore_registrations($trash = true)
-    {
-        // if empty _REG_ID then get out because there's nothing to do
-        if (empty($this->_req_data['_REG_ID'])) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'In order to %1$s registrations you must select which ones you wish to %1$s by clicking the checkboxes.',
-                        'event_espresso'
-                    ),
-                    $trash ? 'trash' : 'restore'
-                ),
-                __FILE__,
-                __LINE__,
-                __FUNCTION__
-            );
-            $this->_redirect_after_action(false, '', '', array(), true);
-        }
-        $success = 0;
-        $overwrite_msgs = false;
-        // Checkboxes
-        if (! is_array($this->_req_data['_REG_ID'])) {
-            $this->_req_data['_REG_ID'] = array($this->_req_data['_REG_ID']);
-        }
-        $reg_count = count($this->_req_data['_REG_ID']);
-        // cycle thru checkboxes
-        foreach ($this->_req_data['_REG_ID'] as $REG_ID) {
-            /** @var EE_Registration $REG */
-            $REG = EEM_Registration::instance()->get_one_by_ID($REG_ID);
-            $payments = $REG->registration_payments();
-            if (! empty($payments)) {
-                $name = $REG->attendee() instanceof EE_Attendee
-                    ? $REG->attendee()->full_name()
-                    : esc_html__('Unknown Attendee', 'event_espresso');
-                $overwrite_msgs = true;
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            'The registration for %s could not be trashed because it has payments attached to the related transaction.  If you wish to trash this registration you must first delete the payments on the related transaction.',
-                            'event_espresso'
-                        ),
-                        $name
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                // can't trash this registration because it has payments.
-                continue;
-            }
-            $updated = $trash ? $REG->delete() : $REG->restore();
-            if ($updated) {
-                $success++;
-            }
-        }
-        $this->_redirect_after_action(
-            $success === $reg_count, // were ALL registrations affected?
-            $success > 1
-                ? esc_html__('Registrations', 'event_espresso')
-                : esc_html__('Registration', 'event_espresso'),
-            $trash
-                ? esc_html__('moved to the trash', 'event_espresso')
-                : esc_html__('restored', 'event_espresso'),
-            array('action' => 'default'),
-            $overwrite_msgs
-        );
-    }
-
-
-    /**
-     * This is used to permanently delete registrations.  Note, this will handle not only deleting permanently the
-     * registration but also.
-     * 1. Removing relations to EE_Attendee
-     * 2. Deleting permanently the related transaction, but ONLY if all related registrations to the transaction are
-     * ALSO trashed.
-     * 3. Deleting permanently any related Line items but only if the above conditions are met.
-     * 4. Removing relationships between all tickets and the related registrations
-     * 5. Deleting permanently any related Answers (and the answers for other related registrations that were deleted.)
-     * 6. Deleting permanently any related Checkins.
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _delete_registrations()
-    {
-        $REG_MDL = EEM_Registration::instance();
-        $success = 1;
-        // Checkboxes
-        if (! empty($this->_req_data['_REG_ID']) && is_array($this->_req_data['_REG_ID'])) {
-            // if array has more than one element than success message should be plural
-            $success = count($this->_req_data['_REG_ID']) > 1 ? 2 : 1;
-            // cycle thru checkboxes
-            while (list($ind, $REG_ID) = each($this->_req_data['_REG_ID'])) {
-                $REG = $REG_MDL->get_one_by_ID($REG_ID);
-                if (! $REG instanceof EE_Registration) {
-                    continue;
-                }
-                $deleted = $this->_delete_registration($REG);
-                if (! $deleted) {
-                    $success = 0;
-                }
-            }
-        } else {
-            // grab single id and delete
-            $REG_ID = $this->_req_data['_REG_ID'];
-            $REG = $REG_MDL->get_one_by_ID($REG_ID);
-            $deleted = $this->_delete_registration($REG);
-            if (! $deleted) {
-                $success = 0;
-            }
-        }
-        $what = $success > 1
-            ? esc_html__('Registrations', 'event_espresso')
-            : esc_html__('Registration', 'event_espresso');
-        $action_desc = esc_html__('permanently deleted.', 'event_espresso');
-        $this->_redirect_after_action(
-            $success,
-            $what,
-            $action_desc,
-            array('action' => 'default'),
-            true
-        );
-    }
-
-
-    /**
-     * handles the permanent deletion of a registration.  See comments with _delete_registrations() for details on what
-     * models get affected.
-     *
-     * @param  EE_Registration $REG registration to be deleted permenantly
-     * @return bool true = successful deletion, false = fail.
-     * @throws EE_Error
-     */
-    protected function _delete_registration(EE_Registration $REG)
-    {
-        // first we start with the transaction... ultimately, we WILL not delete permanently if there are any related
-        // registrations on the transaction that are NOT trashed.
-        $TXN = $REG->get_first_related('Transaction');
-        $REGS = $TXN->get_many_related('Registration');
-        $all_trashed = true;
-        foreach ($REGS as $registration) {
-            if (! $registration->get('REG_deleted')) {
-                $all_trashed = false;
-            }
-        }
-        if (! $all_trashed) {
-            EE_Error::add_error(
-                esc_html__(
-                    'Unable to permanently delete this registration. Before this registration can be permanently deleted, all registrations made in the same transaction must be trashed as well.  These registrations will be permanently deleted in the same action.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // k made it here so that means we can delete all the related transactions and their answers (but let's do them
-        // separately from THIS one).
-        foreach ($REGS as $registration) {
-            // delete related answers
-            $registration->delete_related_permanently('Answer');
-            // remove relationship to EE_Attendee (but we ALWAYS leave the contact record intact)
-            $attendee = $registration->get_first_related('Attendee');
-            if ($attendee instanceof EE_Attendee) {
-                $registration->_remove_relation_to($attendee, 'Attendee');
-            }
-            // now remove relationships to tickets on this registration.
-            $registration->_remove_relations('Ticket');
-            // now delete permanently the checkins related to this registration.
-            $registration->delete_related_permanently('Checkin');
-            if ($registration->ID() === $REG->ID()) {
-                continue;
-            } //we don't want to delete permanently the existing registration just yet.
-            // remove relation to transaction for these registrations if NOT the existing registrations
-            $registration->_remove_relations('Transaction');
-            // delete permanently any related messages.
-            $registration->delete_related_permanently('Message');
-            // now delete this registration permanently
-            $registration->delete_permanently();
-        }
-        // now all related registrations on the transaction are handled.  So let's just handle this registration itself
-        // (the transaction and line items should be all that's left).
-        // delete the line items related to the transaction for this registration.
-        $TXN->delete_related_permanently('Line_Item');
-        // we need to remove all the relationships on the transaction
-        $TXN->delete_related_permanently('Payment');
-        $TXN->delete_related_permanently('Extra_Meta');
-        $TXN->delete_related_permanently('Message');
-        // now we can delete this REG permanently (and the transaction of course)
-        $REG->delete_related_permanently('Transaction');
-        return $REG->delete_permanently();
-    }
-
-
-    /**
-     *    generates HTML for the Register New Attendee Admin page
-     *
-     * @access private
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    public function new_registration()
-    {
-        if (! $this->_set_reg_event()) {
-            throw new EE_Error(
-                esc_html__(
-                    'Unable to continue with registering because there is no Event ID in the request',
-                    'event_espresso'
-                )
-            );
-        }
-        EE_Registry::instance()->REQ->set_espresso_page(true);
-        // gotta start with a clean slate if we're not coming here via ajax
-        if (! defined('DOING_AJAX')
-            && (! isset($this->_req_data['processing_registration']) || isset($this->_req_data['step_error']))
-        ) {
-            EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-        }
-        $this->_template_args['event_name'] = '';
-        // event name
-        if ($this->_reg_event) {
-            $this->_template_args['event_name'] = $this->_reg_event->name();
-            $edit_event_url = self::add_query_args_and_nonce(
-                array(
-                    'action' => 'edit',
-                    'post'   => $this->_reg_event->ID(),
-                ),
-                EVENTS_ADMIN_URL
-            );
-            $edit_event_lnk = '<a href="'
-                              . $edit_event_url
-                              . '" title="'
-                              . esc_attr__('Edit ', 'event_espresso')
-                              . $this->_reg_event->name()
-                              . '">'
-                              . esc_html__('Edit Event', 'event_espresso')
-                              . '</a>';
-            $this->_template_args['event_name'] .= ' <span class="admin-page-header-edit-lnk not-bold">'
-                                                   . $edit_event_lnk
-                                                   . '</span>';
-        }
-        $this->_template_args['step_content'] = $this->_get_registration_step_content();
-        if (defined('DOING_AJAX')) {
-            $this->_return_json();
-        }
-        // grab header
-        $template_path =
-            REG_TEMPLATE_PATH . 'reg_admin_register_new_attendee.template.php';
-        $this->_template_args['admin_page_content'] = EEH_Template::display_template(
-            $template_path,
-            $this->_template_args,
-            true
-        );
-        // $this->_set_publish_post_box_vars( NULL, FALSE, FALSE, NULL, FALSE );
-        // the details template wrapper
-        $this->display_admin_page_with_sidebar();
-    }
-
-
-    /**
-     * This returns the content for a registration step
-     *
-     * @access protected
-     * @return string html
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _get_registration_step_content()
-    {
-        if (isset($_COOKIE['ee_registration_added']) && $_COOKIE['ee_registration_added']) {
-            $warning_msg = sprintf(
-                esc_html__(
-                    '%2$sWARNING!!!%3$s%1$sPlease do not use the back button to return to this page for the purpose of adding another registration.%1$sThis can result in lost and/or corrupted data.%1$sIf you wish to add another registration, then please click the%1$s%7$s"Add Another New Registration to Event"%8$s button%1$son the Transaction details page, after you are redirected.%1$s%1$s%4$s redirecting in %5$s seconds %6$s',
-                    'event_espresso'
-                ),
-                '<br />',
-                '<h3 class="important-notice">',
-                '</h3>',
-                '<div class="float-right">',
-                '<span id="redirect_timer" class="important-notice">30</span>',
-                '</div>',
-                '<b>',
-                '</b>'
-            );
-            return '
+	}
+
+
+	/**
+	 * Updates the registration's custom questions according to the form info, if the form is submitted.
+	 * If it's not a post, the "view_registrations" route will be called next on the SAME request
+	 * to display the page
+	 *
+	 * @access protected
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _update_attendee_registration_form()
+	{
+		do_action('AHEE__Registrations_Admin_Page___update_attendee_registration_form__start', $this);
+		if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+			$REG_ID = isset($this->_req_data['_REG_ID']) ? absint($this->_req_data['_REG_ID']) : false;
+			$success = $this->_save_reg_custom_questions_form($REG_ID);
+			if ($success) {
+				$what = esc_html__('Registration Form', 'event_espresso');
+				$route = $REG_ID ? array('action' => 'view_registration', '_REG_ID' => $REG_ID)
+					: array('action' => 'default');
+				$this->_redirect_after_action($success, $what, esc_html__('updated', 'event_espresso'), $route);
+			}
+		}
+	}
+
+
+	/**
+	 * Gets the form for saving registrations custom questions (if done
+	 * previously retrieves the cached form object, which may have validation errors in it)
+	 *
+	 * @param int $REG_ID
+	 * @return EE_Registration_Custom_Questions_Form
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _get_reg_custom_questions_form($REG_ID)
+	{
+		if (! $this->_reg_custom_questions_form) {
+			require_once(REG_ADMIN . 'form_sections' . DS . 'EE_Registration_Custom_Questions_Form.form.php');
+			$this->_reg_custom_questions_form = new EE_Registration_Custom_Questions_Form(
+				EEM_Registration::instance()->get_one_by_ID($REG_ID)
+			);
+			$this->_reg_custom_questions_form->_construct_finalize(null, null);
+		}
+		return $this->_reg_custom_questions_form;
+	}
+
+
+	/**
+	 * Saves
+	 *
+	 * @access private
+	 * @param bool $REG_ID
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _save_reg_custom_questions_form($REG_ID = false)
+	{
+		if (! $REG_ID) {
+			EE_Error::add_error(
+				esc_html__(
+					'An error occurred. No registration ID was received.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		$form = $this->_get_reg_custom_questions_form($REG_ID);
+		$form->receive_form_submission($this->_req_data);
+		$success = false;
+		if ($form->is_valid()) {
+			foreach ($form->subforms() as $question_group_id => $question_group_form) {
+				foreach ($question_group_form->inputs() as $question_id => $input) {
+					$where_conditions = array(
+						'QST_ID' => $question_id,
+						'REG_ID' => $REG_ID,
+					);
+					$possibly_new_values = array(
+						'ANS_value' => $input->normalized_value(),
+					);
+					$answer = EEM_Answer::instance()->get_one(array($where_conditions));
+					if ($answer instanceof EE_Answer) {
+						$success = $answer->save($possibly_new_values);
+					} else {
+						// insert it then
+						$cols_n_vals = array_merge($where_conditions, $possibly_new_values);
+						$answer = EE_Answer::new_instance($cols_n_vals);
+						$success = $answer->save();
+					}
+				}
+			}
+		} else {
+			EE_Error::add_error($form->get_validation_error_string(), __FILE__, __FUNCTION__, __LINE__);
+		}
+		return $success;
+	}
+
+
+	/**
+	 *        generates HTML for the Registration main meta box
+	 *
+	 * @access public
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function _reg_attendees_meta_box()
+	{
+		$REG = EEM_Registration::instance();
+		// get all other registrations on this transaction, and cache
+		// the attendees for them so we don't have to run another query using force_join
+		$registrations = $REG->get_all(
+			array(
+				array(
+					'TXN_ID' => $this->_registration->transaction_ID(),
+					'REG_ID' => array('!=', $this->_registration->ID()),
+				),
+				'force_join' => array('Attendee'),
+			)
+		);
+		$this->_template_args['attendees'] = array();
+		$this->_template_args['attendee_notice'] = '';
+		if (empty($registrations)
+			|| (is_array($registrations)
+				&& ! EEH_Array::get_one_item_from_array($registrations))
+		) {
+			EE_Error::add_error(
+				esc_html__(
+					'There are no records attached to this registration. Something may have gone wrong with the registration',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$this->_template_args['attendee_notice'] = EE_Error::get_notices();
+		} else {
+			$att_nmbr = 1;
+			foreach ($registrations as $registration) {
+				/* @var $registration EE_Registration */
+				$attendee = $registration->attendee()
+					? $registration->attendee()
+					: EEM_Attendee::instance()
+								  ->create_default_object();
+				$this->_template_args['attendees'][ $att_nmbr ]['STS_ID'] = $registration->status_ID();
+				$this->_template_args['attendees'][ $att_nmbr ]['fname'] = $attendee->fname();
+				$this->_template_args['attendees'][ $att_nmbr ]['lname'] = $attendee->lname();
+				$this->_template_args['attendees'][ $att_nmbr ]['email'] = $attendee->email();
+				$this->_template_args['attendees'][ $att_nmbr ]['final_price'] = $registration->final_price();
+				$this->_template_args['attendees'][ $att_nmbr ]['address'] = implode(
+					', ',
+					$attendee->full_address_as_array()
+				);
+				$this->_template_args['attendees'][ $att_nmbr ]['att_link'] = self::add_query_args_and_nonce(
+					array(
+						'action' => 'edit_attendee',
+						'post'   => $attendee->ID(),
+					),
+					REG_ADMIN_URL
+				);
+				$this->_template_args['attendees'][ $att_nmbr ]['event_name'] = $registration->event_obj()->name();
+				$att_nmbr++;
+			}
+			$this->_template_args['currency_sign'] = EE_Registry::instance()->CFG->currency->sign;
+		}
+		$template_path = REG_TEMPLATE_PATH . 'reg_admin_details_main_meta_box_attendees.template.php';
+		echo EEH_Template::display_template($template_path, $this->_template_args, true);
+	}
+
+
+	/**
+	 *        generates HTML for the Edit Registration side meta box
+	 *
+	 * @access public
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function _reg_registrant_side_meta_box()
+	{
+		/*@var $attendee EE_Attendee */
+		$att_check = $this->_registration->attendee();
+		$attendee = $att_check instanceof EE_Attendee ? $att_check : EEM_Attendee::instance()->create_default_object();
+		// now let's determine if this is not the primary registration.  If it isn't then we set the
+		// primary_registration object for reference BUT ONLY if the Attendee object loaded is not the same as the
+		// primary registration object (that way we know if we need to show create button or not)
+		if (! $this->_registration->is_primary_registrant()) {
+			$primary_registration = $this->_registration->get_primary_registration();
+			$primary_attendee = $primary_registration instanceof EE_Registration ? $primary_registration->attendee()
+				: null;
+			if (! $primary_attendee instanceof EE_Attendee || $attendee->ID() !== $primary_attendee->ID()) {
+				// in here?  This means the displayed registration is not the primary registrant but ALREADY HAS its own
+				// custom attendee object so let's not worry about the primary reg.
+				$primary_registration = null;
+			}
+		} else {
+			$primary_registration = null;
+		}
+		$this->_template_args['ATT_ID'] = $attendee->ID();
+		$this->_template_args['fname'] = $attendee->fname();
+		$this->_template_args['lname'] = $attendee->lname();
+		$this->_template_args['email'] = $attendee->email();
+		$this->_template_args['phone'] = $attendee->phone();
+		$this->_template_args['formatted_address'] = EEH_Address::format($attendee);
+		// edit link
+		$this->_template_args['att_edit_link'] = EE_Admin_Page::add_query_args_and_nonce(
+			array(
+				'action' => 'edit_attendee',
+				'post'   => $attendee->ID(),
+			),
+			REG_ADMIN_URL
+		);
+		$this->_template_args['att_edit_label'] = esc_html__('View/Edit Contact', 'event_espresso');
+		// create link
+		$this->_template_args['create_link'] = $primary_registration instanceof EE_Registration
+			? EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'action'  => 'duplicate_attendee',
+					'_REG_ID' => $this->_registration->ID(),
+				),
+				REG_ADMIN_URL
+			) : '';
+		$this->_template_args['create_label'] = esc_html__('Create Contact', 'event_espresso');
+		$this->_template_args['att_check'] = $att_check;
+		$template_path = REG_TEMPLATE_PATH . 'reg_admin_details_side_meta_box_registrant.template.php';
+		echo EEH_Template::display_template($template_path, $this->_template_args, true);
+	}
+
+
+	/**
+	 * trash or restore registrations
+	 *
+	 * @param  boolean $trash whether to archive or restore
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws RuntimeException
+	 * @access protected
+	 */
+	protected function _trash_or_restore_registrations($trash = true)
+	{
+		// if empty _REG_ID then get out because there's nothing to do
+		if (empty($this->_req_data['_REG_ID'])) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'In order to %1$s registrations you must select which ones you wish to %1$s by clicking the checkboxes.',
+						'event_espresso'
+					),
+					$trash ? 'trash' : 'restore'
+				),
+				__FILE__,
+				__LINE__,
+				__FUNCTION__
+			);
+			$this->_redirect_after_action(false, '', '', array(), true);
+		}
+		$success = 0;
+		$overwrite_msgs = false;
+		// Checkboxes
+		if (! is_array($this->_req_data['_REG_ID'])) {
+			$this->_req_data['_REG_ID'] = array($this->_req_data['_REG_ID']);
+		}
+		$reg_count = count($this->_req_data['_REG_ID']);
+		// cycle thru checkboxes
+		foreach ($this->_req_data['_REG_ID'] as $REG_ID) {
+			/** @var EE_Registration $REG */
+			$REG = EEM_Registration::instance()->get_one_by_ID($REG_ID);
+			$payments = $REG->registration_payments();
+			if (! empty($payments)) {
+				$name = $REG->attendee() instanceof EE_Attendee
+					? $REG->attendee()->full_name()
+					: esc_html__('Unknown Attendee', 'event_espresso');
+				$overwrite_msgs = true;
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							'The registration for %s could not be trashed because it has payments attached to the related transaction.  If you wish to trash this registration you must first delete the payments on the related transaction.',
+							'event_espresso'
+						),
+						$name
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				// can't trash this registration because it has payments.
+				continue;
+			}
+			$updated = $trash ? $REG->delete() : $REG->restore();
+			if ($updated) {
+				$success++;
+			}
+		}
+		$this->_redirect_after_action(
+			$success === $reg_count, // were ALL registrations affected?
+			$success > 1
+				? esc_html__('Registrations', 'event_espresso')
+				: esc_html__('Registration', 'event_espresso'),
+			$trash
+				? esc_html__('moved to the trash', 'event_espresso')
+				: esc_html__('restored', 'event_espresso'),
+			array('action' => 'default'),
+			$overwrite_msgs
+		);
+	}
+
+
+	/**
+	 * This is used to permanently delete registrations.  Note, this will handle not only deleting permanently the
+	 * registration but also.
+	 * 1. Removing relations to EE_Attendee
+	 * 2. Deleting permanently the related transaction, but ONLY if all related registrations to the transaction are
+	 * ALSO trashed.
+	 * 3. Deleting permanently any related Line items but only if the above conditions are met.
+	 * 4. Removing relationships between all tickets and the related registrations
+	 * 5. Deleting permanently any related Answers (and the answers for other related registrations that were deleted.)
+	 * 6. Deleting permanently any related Checkins.
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _delete_registrations()
+	{
+		$REG_MDL = EEM_Registration::instance();
+		$success = 1;
+		// Checkboxes
+		if (! empty($this->_req_data['_REG_ID']) && is_array($this->_req_data['_REG_ID'])) {
+			// if array has more than one element than success message should be plural
+			$success = count($this->_req_data['_REG_ID']) > 1 ? 2 : 1;
+			// cycle thru checkboxes
+			while (list($ind, $REG_ID) = each($this->_req_data['_REG_ID'])) {
+				$REG = $REG_MDL->get_one_by_ID($REG_ID);
+				if (! $REG instanceof EE_Registration) {
+					continue;
+				}
+				$deleted = $this->_delete_registration($REG);
+				if (! $deleted) {
+					$success = 0;
+				}
+			}
+		} else {
+			// grab single id and delete
+			$REG_ID = $this->_req_data['_REG_ID'];
+			$REG = $REG_MDL->get_one_by_ID($REG_ID);
+			$deleted = $this->_delete_registration($REG);
+			if (! $deleted) {
+				$success = 0;
+			}
+		}
+		$what = $success > 1
+			? esc_html__('Registrations', 'event_espresso')
+			: esc_html__('Registration', 'event_espresso');
+		$action_desc = esc_html__('permanently deleted.', 'event_espresso');
+		$this->_redirect_after_action(
+			$success,
+			$what,
+			$action_desc,
+			array('action' => 'default'),
+			true
+		);
+	}
+
+
+	/**
+	 * handles the permanent deletion of a registration.  See comments with _delete_registrations() for details on what
+	 * models get affected.
+	 *
+	 * @param  EE_Registration $REG registration to be deleted permenantly
+	 * @return bool true = successful deletion, false = fail.
+	 * @throws EE_Error
+	 */
+	protected function _delete_registration(EE_Registration $REG)
+	{
+		// first we start with the transaction... ultimately, we WILL not delete permanently if there are any related
+		// registrations on the transaction that are NOT trashed.
+		$TXN = $REG->get_first_related('Transaction');
+		$REGS = $TXN->get_many_related('Registration');
+		$all_trashed = true;
+		foreach ($REGS as $registration) {
+			if (! $registration->get('REG_deleted')) {
+				$all_trashed = false;
+			}
+		}
+		if (! $all_trashed) {
+			EE_Error::add_error(
+				esc_html__(
+					'Unable to permanently delete this registration. Before this registration can be permanently deleted, all registrations made in the same transaction must be trashed as well.  These registrations will be permanently deleted in the same action.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// k made it here so that means we can delete all the related transactions and their answers (but let's do them
+		// separately from THIS one).
+		foreach ($REGS as $registration) {
+			// delete related answers
+			$registration->delete_related_permanently('Answer');
+			// remove relationship to EE_Attendee (but we ALWAYS leave the contact record intact)
+			$attendee = $registration->get_first_related('Attendee');
+			if ($attendee instanceof EE_Attendee) {
+				$registration->_remove_relation_to($attendee, 'Attendee');
+			}
+			// now remove relationships to tickets on this registration.
+			$registration->_remove_relations('Ticket');
+			// now delete permanently the checkins related to this registration.
+			$registration->delete_related_permanently('Checkin');
+			if ($registration->ID() === $REG->ID()) {
+				continue;
+			} //we don't want to delete permanently the existing registration just yet.
+			// remove relation to transaction for these registrations if NOT the existing registrations
+			$registration->_remove_relations('Transaction');
+			// delete permanently any related messages.
+			$registration->delete_related_permanently('Message');
+			// now delete this registration permanently
+			$registration->delete_permanently();
+		}
+		// now all related registrations on the transaction are handled.  So let's just handle this registration itself
+		// (the transaction and line items should be all that's left).
+		// delete the line items related to the transaction for this registration.
+		$TXN->delete_related_permanently('Line_Item');
+		// we need to remove all the relationships on the transaction
+		$TXN->delete_related_permanently('Payment');
+		$TXN->delete_related_permanently('Extra_Meta');
+		$TXN->delete_related_permanently('Message');
+		// now we can delete this REG permanently (and the transaction of course)
+		$REG->delete_related_permanently('Transaction');
+		return $REG->delete_permanently();
+	}
+
+
+	/**
+	 *    generates HTML for the Register New Attendee Admin page
+	 *
+	 * @access private
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	public function new_registration()
+	{
+		if (! $this->_set_reg_event()) {
+			throw new EE_Error(
+				esc_html__(
+					'Unable to continue with registering because there is no Event ID in the request',
+					'event_espresso'
+				)
+			);
+		}
+		EE_Registry::instance()->REQ->set_espresso_page(true);
+		// gotta start with a clean slate if we're not coming here via ajax
+		if (! defined('DOING_AJAX')
+			&& (! isset($this->_req_data['processing_registration']) || isset($this->_req_data['step_error']))
+		) {
+			EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+		}
+		$this->_template_args['event_name'] = '';
+		// event name
+		if ($this->_reg_event) {
+			$this->_template_args['event_name'] = $this->_reg_event->name();
+			$edit_event_url = self::add_query_args_and_nonce(
+				array(
+					'action' => 'edit',
+					'post'   => $this->_reg_event->ID(),
+				),
+				EVENTS_ADMIN_URL
+			);
+			$edit_event_lnk = '<a href="'
+							  . $edit_event_url
+							  . '" title="'
+							  . esc_attr__('Edit ', 'event_espresso')
+							  . $this->_reg_event->name()
+							  . '">'
+							  . esc_html__('Edit Event', 'event_espresso')
+							  . '</a>';
+			$this->_template_args['event_name'] .= ' <span class="admin-page-header-edit-lnk not-bold">'
+												   . $edit_event_lnk
+												   . '</span>';
+		}
+		$this->_template_args['step_content'] = $this->_get_registration_step_content();
+		if (defined('DOING_AJAX')) {
+			$this->_return_json();
+		}
+		// grab header
+		$template_path =
+			REG_TEMPLATE_PATH . 'reg_admin_register_new_attendee.template.php';
+		$this->_template_args['admin_page_content'] = EEH_Template::display_template(
+			$template_path,
+			$this->_template_args,
+			true
+		);
+		// $this->_set_publish_post_box_vars( NULL, FALSE, FALSE, NULL, FALSE );
+		// the details template wrapper
+		$this->display_admin_page_with_sidebar();
+	}
+
+
+	/**
+	 * This returns the content for a registration step
+	 *
+	 * @access protected
+	 * @return string html
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _get_registration_step_content()
+	{
+		if (isset($_COOKIE['ee_registration_added']) && $_COOKIE['ee_registration_added']) {
+			$warning_msg = sprintf(
+				esc_html__(
+					'%2$sWARNING!!!%3$s%1$sPlease do not use the back button to return to this page for the purpose of adding another registration.%1$sThis can result in lost and/or corrupted data.%1$sIf you wish to add another registration, then please click the%1$s%7$s"Add Another New Registration to Event"%8$s button%1$son the Transaction details page, after you are redirected.%1$s%1$s%4$s redirecting in %5$s seconds %6$s',
+					'event_espresso'
+				),
+				'<br />',
+				'<h3 class="important-notice">',
+				'</h3>',
+				'<div class="float-right">',
+				'<span id="redirect_timer" class="important-notice">30</span>',
+				'</div>',
+				'<b>',
+				'</b>'
+			);
+			return '
 	<div id="ee-add-reg-back-button-dv"><p>' . $warning_msg . '</p></div>
 	<script >
 		// WHOAH !!! it appears that someone is using the back button from the Transaction admin page
@@ -3031,855 +3031,855 @@ 
 	        }
 	    }, 800 );
 	</script >';
-        }
-        $template_args = array(
-            'title'                    => '',
-            'content'                  => '',
-            'step_button_text'         => '',
-            'show_notification_toggle' => false,
-        );
-        // to indicate we're processing a new registration
-        $hidden_fields = array(
-            'processing_registration' => array(
-                'type'  => 'hidden',
-                'value' => 0,
-            ),
-            'event_id'                => array(
-                'type'  => 'hidden',
-                'value' => $this->_reg_event->ID(),
-            ),
-        );
-        // if the cart is empty then we know we're at step one so we'll display ticket selector
-        $cart = EE_Registry::instance()->SSN->cart();
-        $step = ! $cart instanceof EE_Cart ? 'ticket' : 'questions';
-        switch ($step) {
-            case 'ticket':
-                $hidden_fields['processing_registration']['value'] = 1;
-                $template_args['title'] = esc_html__(
-                    'Step One: Select the Ticket for this registration',
-                    'event_espresso'
-                );
-                $template_args['content'] =
-                    EED_Ticket_Selector::instance()->display_ticket_selector($this->_reg_event);
-                $template_args['step_button_text'] = esc_html__(
-                    'Add Tickets and Continue to Registrant Details',
-                    'event_espresso'
-                );
-                $template_args['show_notification_toggle'] = false;
-                break;
-            case 'questions':
-                $hidden_fields['processing_registration']['value'] = 2;
-                $template_args['title'] = esc_html__(
-                    'Step Two: Add Registrant Details for this Registration',
-                    'event_espresso'
-                );
-                // in theory we should be able to run EED_SPCO at this point because the cart should have been setup
-                // properly by the first process_reg_step run.
-                $template_args['content'] =
-                    EED_Single_Page_Checkout::registration_checkout_for_admin();
-                $template_args['step_button_text'] = esc_html__(
-                    'Save Registration and Continue to Details',
-                    'event_espresso'
-                );
-                $template_args['show_notification_toggle'] = true;
-                break;
-        }
-        // we come back to the process_registration_step route.
-        $this->_set_add_edit_form_tags('process_reg_step', $hidden_fields);
-        return EEH_Template::display_template(
-            REG_TEMPLATE_PATH . 'reg_admin_register_new_attendee_step_content.template.php',
-            $template_args,
-            true
-        );
-    }
-
-
-    /**
-     *        set_reg_event
-     *
-     * @access private
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _set_reg_event()
-    {
-        if (is_object($this->_reg_event)) {
-            return true;
-        }
-        $EVT_ID = (! empty($this->_req_data['event_id'])) ? absint($this->_req_data['event_id']) : false;
-        if (! $EVT_ID) {
-            return false;
-        }
-        $this->_reg_event = EEM_Event::instance()->get_one_by_ID($EVT_ID);
-        return true;
-    }
-
-
-    /**
-     * process_reg_step
-     *
-     * @access        public
-     * @return string
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     */
-    public function process_reg_step()
-    {
-        EE_System::do_not_cache();
-        $this->_set_reg_event();
-        EE_Registry::instance()->REQ->set_espresso_page(true);
-        EE_Registry::instance()->REQ->set('uts', time());
-        // what step are we on?
-        $cart = EE_Registry::instance()->SSN->cart();
-        $step = ! $cart instanceof EE_Cart ? 'ticket' : 'questions';
-        // if doing ajax then we need to verify the nonce
-        if (defined('DOING_AJAX')) {
-            $nonce = isset($this->_req_data[ $this->_req_nonce ])
-                ? sanitize_text_field($this->_req_data[ $this->_req_nonce ]) : '';
-            $this->_verify_nonce($nonce, $this->_req_nonce);
-        }
-        switch ($step) {
-            case 'ticket':
-                // process ticket selection
-                $success = EED_Ticket_Selector::instance()->process_ticket_selections();
-                if ($success) {
-                    EE_Error::add_success(
-                        esc_html__(
-                            'Tickets Selected. Now complete the registration.',
-                            'event_espresso'
-                        )
-                    );
-                } else {
-                    $query_args['step_error'] = $this->_req_data['step_error'] = true;
-                }
-                if (defined('DOING_AJAX')) {
-                    $this->new_registration(); // display next step
-                } else {
-                    $query_args = array(
-                        'action'                  => 'new_registration',
-                        'processing_registration' => 1,
-                        'event_id'                => $this->_reg_event->ID(),
-                        'uts'                     => time(),
-                    );
-                    $this->_redirect_after_action(
-                        false,
-                        '',
-                        '',
-                        $query_args,
-                        true
-                    );
-                }
-                break;
-            case 'questions':
-                if (! isset(
-                    $this->_req_data['txn_reg_status_change'],
-                    $this->_req_data['txn_reg_status_change']['send_notifications']
-                )
-                ) {
-                    add_filter('FHEE__EED_Messages___maybe_registration__deliver_notifications', '__return_false', 15);
-                }
-                // process registration
-                $transaction = EED_Single_Page_Checkout::instance()->process_registration_from_admin();
-                if ($cart instanceof EE_Cart) {
-                    $grand_total = $cart->get_cart_grand_total();
-                    if ($grand_total instanceof EE_Line_Item) {
-                        $grand_total->save_this_and_descendants_to_txn();
-                    }
-                }
-                if (! $transaction instanceof EE_Transaction) {
-                    $query_args = array(
-                        'action'                  => 'new_registration',
-                        'processing_registration' => 2,
-                        'event_id'                => $this->_reg_event->ID(),
-                        'uts'                     => time(),
-                    );
-                    if (defined('DOING_AJAX')) {
-                        // display registration form again because there are errors (maybe validation?)
-                        $this->new_registration();
-                        return;
-                    } else {
-                        $this->_redirect_after_action(
-                            false,
-                            '',
-                            '',
-                            $query_args,
-                            true
-                        );
-                        return;
-                    }
-                }
-                // maybe update status, and make sure to save transaction if not done already
-                if (! $transaction->update_status_based_on_total_paid()) {
-                    $transaction->save();
-                }
-                EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-                $this->_req_data = array();
-                $query_args = array(
-                    'action'        => 'redirect_to_txn',
-                    'TXN_ID'        => $transaction->ID(),
-                    'EVT_ID'        => $this->_reg_event->ID(),
-                    'event_name'    => urlencode($this->_reg_event->name()),
-                    'redirect_from' => 'new_registration',
-                );
-                $this->_redirect_after_action(false, '', '', $query_args, true);
-                break;
-        }
-        // what are you looking here for?  Should be nothing to do at this point.
-    }
-
-
-    /**
-     * redirect_to_txn
-     *
-     * @access public
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function redirect_to_txn()
-    {
-        EE_System::do_not_cache();
-        EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-        $query_args = array(
-            'action' => 'view_transaction',
-            'TXN_ID' => isset($this->_req_data['TXN_ID']) ? absint($this->_req_data['TXN_ID']) : 0,
-            'page'   => 'espresso_transactions',
-        );
-        if (isset($this->_req_data['EVT_ID'], $this->_req_data['redirect_from'])) {
-            $query_args['EVT_ID'] = $this->_req_data['EVT_ID'];
-            $query_args['event_name'] = urlencode($this->_req_data['event_name']);
-            $query_args['redirect_from'] = $this->_req_data['redirect_from'];
-        }
-        EE_Error::add_success(
-            esc_html__(
-                'Registration Created.  Please review the transaction and add any payments as necessary',
-                'event_espresso'
-            )
-        );
-        $this->_redirect_after_action(false, '', '', $query_args, true);
-    }
-
-
-    /**
-     *        generates HTML for the Attendee Contact List
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _attendee_contact_list_table()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $this->_search_btn_label = esc_html__('Contacts', 'event_espresso');
-        $this->display_admin_list_table_page_with_no_sidebar();
-    }
-
-
-    /**
-     *        get_attendees
-     *
-     * @param      $per_page
-     * @param bool $count whether to return count or data.
-     * @param bool $trash
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @access public
-     */
-    public function get_attendees($per_page, $count = false, $trash = false)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        require_once(REG_ADMIN . 'EE_Attendee_Contact_List_Table.class.php');
-        $ATT_MDL = EEM_Attendee::instance();
-        $this->_req_data['orderby'] = ! empty($this->_req_data['orderby']) ? $this->_req_data['orderby'] : '';
-        switch ($this->_req_data['orderby']) {
-            case 'ATT_ID':
-                $orderby = 'ATT_ID';
-                break;
-            case 'ATT_fname':
-                $orderby = 'ATT_fname';
-                break;
-            case 'ATT_email':
-                $orderby = 'ATT_email';
-                break;
-            case 'ATT_city':
-                $orderby = 'ATT_city';
-                break;
-            case 'STA_ID':
-                $orderby = 'STA_ID';
-                break;
-            case 'CNT_ID':
-                $orderby = 'CNT_ID';
-                break;
-            case 'Registration_Count':
-                $orderby = 'Registration_Count';
-                break;
-            default:
-                $orderby = 'ATT_lname';
-        }
-        $sort = (isset($this->_req_data['order']) && ! empty($this->_req_data['order']))
-            ? $this->_req_data['order']
-            : 'ASC';
-        $current_page = isset($this->_req_data['paged']) && ! empty($this->_req_data['paged'])
-            ? $this->_req_data['paged']
-            : 1;
-        $per_page = isset($per_page) && ! empty($per_page) ? $per_page : 10;
-        $per_page = isset($this->_req_data['perpage']) && ! empty($this->_req_data['perpage'])
-            ? $this->_req_data['perpage']
-            : $per_page;
-        $_where = array();
-        if (! empty($this->_req_data['s'])) {
-            $sstr = '%' . $this->_req_data['s'] . '%';
-            $_where['OR'] = array(
-                'Registration.Event.EVT_name'       => array('LIKE', $sstr),
-                'Registration.Event.EVT_desc'       => array('LIKE', $sstr),
-                'Registration.Event.EVT_short_desc' => array('LIKE', $sstr),
-                'ATT_fname'                         => array('LIKE', $sstr),
-                'ATT_lname'                         => array('LIKE', $sstr),
-                'ATT_short_bio'                     => array('LIKE', $sstr),
-                'ATT_email'                         => array('LIKE', $sstr),
-                'ATT_address'                       => array('LIKE', $sstr),
-                'ATT_address2'                      => array('LIKE', $sstr),
-                'ATT_city'                          => array('LIKE', $sstr),
-                'Country.CNT_name'                  => array('LIKE', $sstr),
-                'State.STA_name'                    => array('LIKE', $sstr),
-                'ATT_phone'                         => array('LIKE', $sstr),
-                'Registration.REG_final_price'      => array('LIKE', $sstr),
-                'Registration.REG_code'             => array('LIKE', $sstr),
-                'Registration.REG_group_size'       => array('LIKE', $sstr),
-            );
-        }
-        $offset = ($current_page - 1) * $per_page;
-        $limit = $count ? null : array($offset, $per_page);
-        $query_args = array(
-            $_where,
-            'extra_selects' => array('Registration_Count' => array('Registration.REG_ID', 'count', '%d')),
-            'limit'         => $limit,
-        );
-        if (! $count) {
-            $query_args['order_by'] = array($orderby => $sort);
-        }
-        if ($trash) {
-            $query_args[0]['status'] = array('!=', 'publish');
-            $all_attendees = $count
-                ? $ATT_MDL->count($query_args, 'ATT_ID', true)
-                : $ATT_MDL->get_all($query_args);
-        } else {
-            $query_args[0]['status'] = array('IN', array('publish'));
-            $all_attendees = $count
-                ? $ATT_MDL->count($query_args, 'ATT_ID', true)
-                : $ATT_MDL->get_all($query_args);
-        }
-        return $all_attendees;
-    }
-
-
-    /**
-     * This is just taking care of resending the registration confirmation
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _resend_registration()
-    {
-        $this->_process_resend_registration();
-        $query_args = isset($this->_req_data['redirect_to'])
-            ? array('action' => $this->_req_data['redirect_to'], '_REG_ID' => $this->_req_data['_REG_ID'])
-            : array('action' => 'default');
-        $this->_redirect_after_action(false, '', '', $query_args, true);
-    }
-
-    /**
-     * Creates a registration report, but accepts the name of a method to use for preparing the query parameters
-     * to use when selecting registrations
-     *
-     * @param string $method_name_for_getting_query_params the name of the method (on this class) to use for preparing
-     *                                                     the query parameters from the request
-     * @return void ends the request with a redirect or download
-     */
-    public function _registrations_report_base($method_name_for_getting_query_params)
-    {
-        if (! defined('EE_USE_OLD_CSV_REPORT_CLASS')) {
-            wp_redirect(
-                EE_Admin_Page::add_query_args_and_nonce(
-                    array(
-                        'page'        => 'espresso_batch',
-                        'batch'       => 'file',
-                        'EVT_ID'      => isset($this->_req_data['EVT_ID']) ? $this->_req_data['EVT_ID'] : null,
-                        'filters'     => urlencode(
-                            serialize(
-                                call_user_func(
-                                    array($this, $method_name_for_getting_query_params),
-                                    EEH_Array::is_set(
-                                        $this->_req_data,
-                                        'filters',
-                                        array()
-                                    )
-                                )
-                            )
-                        ),
-                        'use_filters' => EEH_Array::is_set($this->_req_data, 'use_filters', false),
-                        'job_handler' => urlencode('EventEspressoBatchRequest\JobHandlers\RegistrationsReport'),
-                        'return_url'  => urlencode($this->_req_data['return_url']),
-                    )
-                )
-            );
-        } else {
-            $new_request_args = array(
-                'export' => 'report',
-                'action' => 'registrations_report_for_event',
-                'EVT_ID' => isset($this->_req_data['EVT_ID']) ? $this->_req_data['EVT_ID'] : null,
-            );
-            $this->_req_data = array_merge($this->_req_data, $new_request_args);
-            if (is_readable(EE_CLASSES . 'EE_Export.class.php')) {
-                require_once(EE_CLASSES . 'EE_Export.class.php');
-                $EE_Export = EE_Export::instance($this->_req_data);
-                $EE_Export->export();
-            }
-        }
-    }
-
-
-    /**
-     * Creates a registration report using only query parameters in the request
-     *
-     * @return void
-     */
-    public function _registrations_report()
-    {
-        $this->_registrations_report_base('_get_registration_query_parameters');
-    }
-
-
-    public function _contact_list_export()
-    {
-        if (is_readable(EE_CLASSES . 'EE_Export.class.php')) {
-            require_once(EE_CLASSES . 'EE_Export.class.php');
-            $EE_Export = EE_Export::instance($this->_req_data);
-            $EE_Export->export_attendees();
-        }
-    }
-
-
-    public function _contact_list_report()
-    {
-        if (! defined('EE_USE_OLD_CSV_REPORT_CLASS')) {
-            wp_redirect(
-                EE_Admin_Page::add_query_args_and_nonce(
-                    array(
-                        'page'        => 'espresso_batch',
-                        'batch'       => 'file',
-                        'job_handler' => urlencode('EventEspressoBatchRequest\JobHandlers\AttendeesReport'),
-                        'return_url'  => urlencode($this->_req_data['return_url']),
-                    )
-                )
-            );
-        } else {
-            if (is_readable(EE_CLASSES . 'EE_Export.class.php')) {
-                require_once(EE_CLASSES . 'EE_Export.class.php');
-                $EE_Export = EE_Export::instance($this->_req_data);
-                $EE_Export->report_attendees();
-            }
-        }
-    }
-
-
-
-
-
-    /***************************************        ATTENDEE DETAILS        ***************************************/
-    /**
-     * This duplicates the attendee object for the given incoming registration id and attendee_id.
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _duplicate_attendee()
-    {
-        $action = ! empty($this->_req_data['return']) ? $this->_req_data['return'] : 'default';
-        // verify we have necessary info
-        if (empty($this->_req_data['_REG_ID'])) {
-            EE_Error::add_error(
-                esc_html__(
-                    'Unable to create the contact for the registration because the required parameters are not present (_REG_ID )',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __LINE__,
-                __FUNCTION__
-            );
-            $query_args = array('action' => $action);
-            $this->_redirect_after_action('', '', '', $query_args, true);
-        }
-        // okay necessary deets present... let's dupe the incoming attendee and attach to incoming registration.
-        $registration = EEM_Registration::instance()->get_one_by_ID($this->_req_data['_REG_ID']);
-        $attendee = $registration->attendee();
-        // remove relation of existing attendee on registration
-        $registration->_remove_relation_to($attendee, 'Attendee');
-        // new attendee
-        $new_attendee = clone $attendee;
-        $new_attendee->set('ATT_ID', 0);
-        $new_attendee->save();
-        // add new attendee to reg
-        $registration->_add_relation_to($new_attendee, 'Attendee');
-        EE_Error::add_success(
-            esc_html__(
-                'New Contact record created.  Now make any edits you wish to make for this contact.',
-                'event_espresso'
-            )
-        );
-        // redirect to edit page for attendee
-        $query_args = array('post' => $new_attendee->ID(), 'action' => 'edit_attendee');
-        $this->_redirect_after_action('', '', '', $query_args, true);
-    }
-
-
-    /**
-     * Callback invoked by parent EE_Admin_CPT class hooked in on `save_post` wp hook.
-     *
-     * @param int     $post_id
-     * @param WP_POST $post
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws LogicException
-     * @throws InvalidFormSubmissionException
-     */
-    protected function _insert_update_cpt_item($post_id, $post)
-    {
-        $success = true;
-        $attendee = $post instanceof WP_Post && $post->post_type === 'espresso_attendees'
-            ? EEM_Attendee::instance()->get_one_by_ID($post_id)
-            : null;
-        // for attendee updates
-        if ($attendee instanceof EE_Attendee) {
-            // note we should only be UPDATING attendees at this point.
-            $updated_fields = array(
-                'ATT_fname'     => $this->_req_data['ATT_fname'],
-                'ATT_lname'     => $this->_req_data['ATT_lname'],
-                'ATT_full_name' => $this->_req_data['ATT_fname'] . ' ' . $this->_req_data['ATT_lname'],
-                'ATT_address'   => isset($this->_req_data['ATT_address']) ? $this->_req_data['ATT_address'] : '',
-                'ATT_address2'  => isset($this->_req_data['ATT_address2']) ? $this->_req_data['ATT_address2'] : '',
-                'ATT_city'      => isset($this->_req_data['ATT_city']) ? $this->_req_data['ATT_city'] : '',
-                'STA_ID'        => isset($this->_req_data['STA_ID']) ? $this->_req_data['STA_ID'] : '',
-                'CNT_ISO'       => isset($this->_req_data['CNT_ISO']) ? $this->_req_data['CNT_ISO'] : '',
-                'ATT_zip'       => isset($this->_req_data['ATT_zip']) ? $this->_req_data['ATT_zip'] : '',
-            );
-            foreach ($updated_fields as $field => $value) {
-                $attendee->set($field, $value);
-            }
-
-            // process contact details metabox form handler (which will also save the attendee)
-            $contact_details_form = $this->getAttendeeContactDetailsMetaboxFormHandler($attendee);
-            $success = $contact_details_form->process($this->_req_data);
-
-            $attendee_update_callbacks = apply_filters(
-                'FHEE__Registrations_Admin_Page__insert_update_cpt_item__attendee_update',
-                array()
-            );
-            foreach ($attendee_update_callbacks as $a_callback) {
-                if (false === call_user_func_array($a_callback, array($attendee, $this->_req_data))) {
-                    throw new EE_Error(
-                        sprintf(
-                            esc_html__(
-                                'The %s callback given for the "FHEE__Registrations_Admin_Page__insert_update_cpt_item__attendee_update" filter is not a valid callback.  Please check the spelling.',
-                                'event_espresso'
-                            ),
-                            $a_callback
-                        )
-                    );
-                }
-            }
-        }
-
-        if ($success === false) {
-            EE_Error::add_error(
-                esc_html__(
-                    'Something went wrong with updating the meta table data for the registration.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-    }
-
-
-    public function trash_cpt_item($post_id)
-    {
-    }
-
-
-    public function delete_cpt_item($post_id)
-    {
-    }
-
-
-    public function restore_cpt_item($post_id)
-    {
-    }
-
-
-    protected function _restore_cpt_item($post_id, $revision_id)
-    {
-    }
-
-
-    public function attendee_editor_metaboxes()
-    {
-        $this->verify_cpt_object();
-        remove_meta_box(
-            'postexcerpt',
-            esc_html__('Excerpt', 'event_espresso'),
-            'post_excerpt_meta_box',
-            $this->_cpt_routes[ $this->_req_action ],
-            'normal',
-            'core'
-        );
-        remove_meta_box('commentstatusdiv', $this->_cpt_routes[ $this->_req_action ], 'normal', 'core');
-        if (post_type_supports('espresso_attendees', 'excerpt')) {
-            add_meta_box(
-                'postexcerpt',
-                esc_html__('Short Biography', 'event_espresso'),
-                'post_excerpt_meta_box',
-                $this->_cpt_routes[ $this->_req_action ],
-                'normal'
-            );
-        }
-        if (post_type_supports('espresso_attendees', 'comments')) {
-            add_meta_box(
-                'commentsdiv',
-                esc_html__('Notes on the Contact', 'event_espresso'),
-                'post_comment_meta_box',
-                $this->_cpt_routes[ $this->_req_action ],
-                'normal',
-                'core'
-            );
-        }
-        add_meta_box(
-            'attendee_contact_info',
-            esc_html__('Contact Info', 'event_espresso'),
-            array($this, 'attendee_contact_info'),
-            $this->_cpt_routes[ $this->_req_action ],
-            'side',
-            'core'
-        );
-        add_meta_box(
-            'attendee_details_address',
-            esc_html__('Address Details', 'event_espresso'),
-            array($this, 'attendee_address_details'),
-            $this->_cpt_routes[ $this->_req_action ],
-            'normal',
-            'core'
-        );
-        add_meta_box(
-            'attendee_registrations',
-            esc_html__('Registrations for this Contact', 'event_espresso'),
-            array($this, 'attendee_registrations_meta_box'),
-            $this->_cpt_routes[ $this->_req_action ],
-            'normal',
-            'high'
-        );
-    }
-
-
-    /**
-     * Metabox for attendee contact info
-     *
-     * @param  WP_Post $post wp post object
-     * @return string attendee contact info ( and form )
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws LogicException
-     * @throws DomainException
-     */
-    public function attendee_contact_info($post)
-    {
-        // get attendee object ( should already have it )
-        $form = $this->getAttendeeContactDetailsMetaboxFormHandler($this->_cpt_model_obj);
-        $form->enqueueStylesAndScripts();
-        echo $form->display();
-    }
-
-
-    /**
-     * Return form handler for the contact details metabox
-     *
-     * @param EE_Attendee $attendee
-     * @return AttendeeContactDetailsMetaboxFormHandler
-     * @throws DomainException
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function getAttendeeContactDetailsMetaboxFormHandler(EE_Attendee $attendee)
-    {
-        return new AttendeeContactDetailsMetaboxFormHandler($attendee, EE_Registry::instance());
-    }
-
-
-    /**
-     * Metabox for attendee details
-     *
-     * @param  WP_Post $post wp post object
-     * @throws DomainException
-     */
-    public function attendee_address_details($post)
-    {
-        // get attendee object (should already have it)
-        $this->_template_args['attendee'] = $this->_cpt_model_obj;
-        $this->_template_args['state_html'] = EEH_Form_Fields::generate_form_input(
-            new EE_Question_Form_Input(
-                EE_Question::new_instance(
-                    array(
-                        'QST_ID'           => 0,
-                        'QST_display_text' => esc_html__('State/Province', 'event_espresso'),
-                        'QST_system'       => 'admin-state',
-                    )
-                ),
-                EE_Answer::new_instance(
-                    array(
-                        'ANS_ID'    => 0,
-                        'ANS_value' => $this->_cpt_model_obj->state_ID(),
-                    )
-                ),
-                array(
-                    'input_id'       => 'STA_ID',
-                    'input_name'     => 'STA_ID',
-                    'input_prefix'   => '',
-                    'append_qstn_id' => false,
-                )
-            )
-        );
-        $this->_template_args['country_html'] = EEH_Form_Fields::generate_form_input(
-            new EE_Question_Form_Input(
-                EE_Question::new_instance(
-                    array(
-                        'QST_ID'           => 0,
-                        'QST_display_text' => esc_html__('Country', 'event_espresso'),
-                        'QST_system'       => 'admin-country',
-                    )
-                ),
-                EE_Answer::new_instance(
-                    array(
-                        'ANS_ID'    => 0,
-                        'ANS_value' => $this->_cpt_model_obj->country_ID(),
-                    )
-                ),
-                array(
-                    'input_id'       => 'CNT_ISO',
-                    'input_name'     => 'CNT_ISO',
-                    'input_prefix'   => '',
-                    'append_qstn_id' => false,
-                )
-            )
-        );
-        $template =
-            REG_TEMPLATE_PATH . 'attendee_address_details_metabox_content.template.php';
-        EEH_Template::display_template($template, $this->_template_args);
-    }
-
-
-    /**
-     *        _attendee_details
-     *
-     * @access protected
-     * @param $post
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    public function attendee_registrations_meta_box($post)
-    {
-        $this->_template_args['attendee'] = $this->_cpt_model_obj;
-        $this->_template_args['registrations'] = $this->_cpt_model_obj->get_many_related('Registration');
-        $template =
-            REG_TEMPLATE_PATH . 'attendee_registrations_main_meta_box.template.php';
-        EEH_Template::display_template($template, $this->_template_args);
-    }
-
-
-    /**
-     * add in the form fields for the attendee edit
-     *
-     * @param  WP_Post $post wp post object
-     * @return string html for new form.
-     * @throws DomainException
-     */
-    public function after_title_form_fields($post)
-    {
-        if ($post->post_type == 'espresso_attendees') {
-            $template = REG_TEMPLATE_PATH . 'attendee_details_after_title_form_fields.template.php';
-            $template_args['attendee'] = $this->_cpt_model_obj;
-            EEH_Template::display_template($template, $template_args);
-        }
-    }
-
-
-    /**
-     *        _trash_or_restore_attendee
-     *
-     * @param boolean $trash - whether to move item to trash (TRUE) or restore it (FALSE)
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @access protected
-     */
-    protected function _trash_or_restore_attendees($trash = true)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $ATT_MDL = EEM_Attendee::instance();
-        $success = 1;
-        // Checkboxes
-        if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
-            // if array has more than one element than success message should be plural
-            $success = count($this->_req_data['checkbox']) > 1 ? 2 : 1;
-            // cycle thru checkboxes
-            while (list($ATT_ID, $value) = each($this->_req_data['checkbox'])) {
-                $updated = $trash ? $ATT_MDL->update_by_ID(array('status' => 'trash'), $ATT_ID)
-                    : $ATT_MDL->update_by_ID(array('status' => 'publish'), $ATT_ID);
-                if (! $updated) {
-                    $success = 0;
-                }
-            }
-        } else {
-            // grab single id and delete
-            $ATT_ID = absint($this->_req_data['ATT_ID']);
-            // get attendee
-            $att = $ATT_MDL->get_one_by_ID($ATT_ID);
-            $updated = $trash ? $att->set_status('trash') : $att->set_status('publish');
-            $updated = $att->save();
-            if (! $updated) {
-                $success = 0;
-            }
-        }
-        $what = $success > 1
-            ? esc_html__('Contacts', 'event_espresso')
-            : esc_html__('Contact', 'event_espresso');
-        $action_desc = $trash
-            ? esc_html__('moved to the trash', 'event_espresso')
-            : esc_html__('restored', 'event_espresso');
-        $this->_redirect_after_action($success, $what, $action_desc, array('action' => 'contact_list'));
-    }
+		}
+		$template_args = array(
+			'title'                    => '',
+			'content'                  => '',
+			'step_button_text'         => '',
+			'show_notification_toggle' => false,
+		);
+		// to indicate we're processing a new registration
+		$hidden_fields = array(
+			'processing_registration' => array(
+				'type'  => 'hidden',
+				'value' => 0,
+			),
+			'event_id'                => array(
+				'type'  => 'hidden',
+				'value' => $this->_reg_event->ID(),
+			),
+		);
+		// if the cart is empty then we know we're at step one so we'll display ticket selector
+		$cart = EE_Registry::instance()->SSN->cart();
+		$step = ! $cart instanceof EE_Cart ? 'ticket' : 'questions';
+		switch ($step) {
+			case 'ticket':
+				$hidden_fields['processing_registration']['value'] = 1;
+				$template_args['title'] = esc_html__(
+					'Step One: Select the Ticket for this registration',
+					'event_espresso'
+				);
+				$template_args['content'] =
+					EED_Ticket_Selector::instance()->display_ticket_selector($this->_reg_event);
+				$template_args['step_button_text'] = esc_html__(
+					'Add Tickets and Continue to Registrant Details',
+					'event_espresso'
+				);
+				$template_args['show_notification_toggle'] = false;
+				break;
+			case 'questions':
+				$hidden_fields['processing_registration']['value'] = 2;
+				$template_args['title'] = esc_html__(
+					'Step Two: Add Registrant Details for this Registration',
+					'event_espresso'
+				);
+				// in theory we should be able to run EED_SPCO at this point because the cart should have been setup
+				// properly by the first process_reg_step run.
+				$template_args['content'] =
+					EED_Single_Page_Checkout::registration_checkout_for_admin();
+				$template_args['step_button_text'] = esc_html__(
+					'Save Registration and Continue to Details',
+					'event_espresso'
+				);
+				$template_args['show_notification_toggle'] = true;
+				break;
+		}
+		// we come back to the process_registration_step route.
+		$this->_set_add_edit_form_tags('process_reg_step', $hidden_fields);
+		return EEH_Template::display_template(
+			REG_TEMPLATE_PATH . 'reg_admin_register_new_attendee_step_content.template.php',
+			$template_args,
+			true
+		);
+	}
+
+
+	/**
+	 *        set_reg_event
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _set_reg_event()
+	{
+		if (is_object($this->_reg_event)) {
+			return true;
+		}
+		$EVT_ID = (! empty($this->_req_data['event_id'])) ? absint($this->_req_data['event_id']) : false;
+		if (! $EVT_ID) {
+			return false;
+		}
+		$this->_reg_event = EEM_Event::instance()->get_one_by_ID($EVT_ID);
+		return true;
+	}
+
+
+	/**
+	 * process_reg_step
+	 *
+	 * @access        public
+	 * @return string
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 */
+	public function process_reg_step()
+	{
+		EE_System::do_not_cache();
+		$this->_set_reg_event();
+		EE_Registry::instance()->REQ->set_espresso_page(true);
+		EE_Registry::instance()->REQ->set('uts', time());
+		// what step are we on?
+		$cart = EE_Registry::instance()->SSN->cart();
+		$step = ! $cart instanceof EE_Cart ? 'ticket' : 'questions';
+		// if doing ajax then we need to verify the nonce
+		if (defined('DOING_AJAX')) {
+			$nonce = isset($this->_req_data[ $this->_req_nonce ])
+				? sanitize_text_field($this->_req_data[ $this->_req_nonce ]) : '';
+			$this->_verify_nonce($nonce, $this->_req_nonce);
+		}
+		switch ($step) {
+			case 'ticket':
+				// process ticket selection
+				$success = EED_Ticket_Selector::instance()->process_ticket_selections();
+				if ($success) {
+					EE_Error::add_success(
+						esc_html__(
+							'Tickets Selected. Now complete the registration.',
+							'event_espresso'
+						)
+					);
+				} else {
+					$query_args['step_error'] = $this->_req_data['step_error'] = true;
+				}
+				if (defined('DOING_AJAX')) {
+					$this->new_registration(); // display next step
+				} else {
+					$query_args = array(
+						'action'                  => 'new_registration',
+						'processing_registration' => 1,
+						'event_id'                => $this->_reg_event->ID(),
+						'uts'                     => time(),
+					);
+					$this->_redirect_after_action(
+						false,
+						'',
+						'',
+						$query_args,
+						true
+					);
+				}
+				break;
+			case 'questions':
+				if (! isset(
+					$this->_req_data['txn_reg_status_change'],
+					$this->_req_data['txn_reg_status_change']['send_notifications']
+				)
+				) {
+					add_filter('FHEE__EED_Messages___maybe_registration__deliver_notifications', '__return_false', 15);
+				}
+				// process registration
+				$transaction = EED_Single_Page_Checkout::instance()->process_registration_from_admin();
+				if ($cart instanceof EE_Cart) {
+					$grand_total = $cart->get_cart_grand_total();
+					if ($grand_total instanceof EE_Line_Item) {
+						$grand_total->save_this_and_descendants_to_txn();
+					}
+				}
+				if (! $transaction instanceof EE_Transaction) {
+					$query_args = array(
+						'action'                  => 'new_registration',
+						'processing_registration' => 2,
+						'event_id'                => $this->_reg_event->ID(),
+						'uts'                     => time(),
+					);
+					if (defined('DOING_AJAX')) {
+						// display registration form again because there are errors (maybe validation?)
+						$this->new_registration();
+						return;
+					} else {
+						$this->_redirect_after_action(
+							false,
+							'',
+							'',
+							$query_args,
+							true
+						);
+						return;
+					}
+				}
+				// maybe update status, and make sure to save transaction if not done already
+				if (! $transaction->update_status_based_on_total_paid()) {
+					$transaction->save();
+				}
+				EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+				$this->_req_data = array();
+				$query_args = array(
+					'action'        => 'redirect_to_txn',
+					'TXN_ID'        => $transaction->ID(),
+					'EVT_ID'        => $this->_reg_event->ID(),
+					'event_name'    => urlencode($this->_reg_event->name()),
+					'redirect_from' => 'new_registration',
+				);
+				$this->_redirect_after_action(false, '', '', $query_args, true);
+				break;
+		}
+		// what are you looking here for?  Should be nothing to do at this point.
+	}
+
+
+	/**
+	 * redirect_to_txn
+	 *
+	 * @access public
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function redirect_to_txn()
+	{
+		EE_System::do_not_cache();
+		EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+		$query_args = array(
+			'action' => 'view_transaction',
+			'TXN_ID' => isset($this->_req_data['TXN_ID']) ? absint($this->_req_data['TXN_ID']) : 0,
+			'page'   => 'espresso_transactions',
+		);
+		if (isset($this->_req_data['EVT_ID'], $this->_req_data['redirect_from'])) {
+			$query_args['EVT_ID'] = $this->_req_data['EVT_ID'];
+			$query_args['event_name'] = urlencode($this->_req_data['event_name']);
+			$query_args['redirect_from'] = $this->_req_data['redirect_from'];
+		}
+		EE_Error::add_success(
+			esc_html__(
+				'Registration Created.  Please review the transaction and add any payments as necessary',
+				'event_espresso'
+			)
+		);
+		$this->_redirect_after_action(false, '', '', $query_args, true);
+	}
+
+
+	/**
+	 *        generates HTML for the Attendee Contact List
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _attendee_contact_list_table()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$this->_search_btn_label = esc_html__('Contacts', 'event_espresso');
+		$this->display_admin_list_table_page_with_no_sidebar();
+	}
+
+
+	/**
+	 *        get_attendees
+	 *
+	 * @param      $per_page
+	 * @param bool $count whether to return count or data.
+	 * @param bool $trash
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @access public
+	 */
+	public function get_attendees($per_page, $count = false, $trash = false)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		require_once(REG_ADMIN . 'EE_Attendee_Contact_List_Table.class.php');
+		$ATT_MDL = EEM_Attendee::instance();
+		$this->_req_data['orderby'] = ! empty($this->_req_data['orderby']) ? $this->_req_data['orderby'] : '';
+		switch ($this->_req_data['orderby']) {
+			case 'ATT_ID':
+				$orderby = 'ATT_ID';
+				break;
+			case 'ATT_fname':
+				$orderby = 'ATT_fname';
+				break;
+			case 'ATT_email':
+				$orderby = 'ATT_email';
+				break;
+			case 'ATT_city':
+				$orderby = 'ATT_city';
+				break;
+			case 'STA_ID':
+				$orderby = 'STA_ID';
+				break;
+			case 'CNT_ID':
+				$orderby = 'CNT_ID';
+				break;
+			case 'Registration_Count':
+				$orderby = 'Registration_Count';
+				break;
+			default:
+				$orderby = 'ATT_lname';
+		}
+		$sort = (isset($this->_req_data['order']) && ! empty($this->_req_data['order']))
+			? $this->_req_data['order']
+			: 'ASC';
+		$current_page = isset($this->_req_data['paged']) && ! empty($this->_req_data['paged'])
+			? $this->_req_data['paged']
+			: 1;
+		$per_page = isset($per_page) && ! empty($per_page) ? $per_page : 10;
+		$per_page = isset($this->_req_data['perpage']) && ! empty($this->_req_data['perpage'])
+			? $this->_req_data['perpage']
+			: $per_page;
+		$_where = array();
+		if (! empty($this->_req_data['s'])) {
+			$sstr = '%' . $this->_req_data['s'] . '%';
+			$_where['OR'] = array(
+				'Registration.Event.EVT_name'       => array('LIKE', $sstr),
+				'Registration.Event.EVT_desc'       => array('LIKE', $sstr),
+				'Registration.Event.EVT_short_desc' => array('LIKE', $sstr),
+				'ATT_fname'                         => array('LIKE', $sstr),
+				'ATT_lname'                         => array('LIKE', $sstr),
+				'ATT_short_bio'                     => array('LIKE', $sstr),
+				'ATT_email'                         => array('LIKE', $sstr),
+				'ATT_address'                       => array('LIKE', $sstr),
+				'ATT_address2'                      => array('LIKE', $sstr),
+				'ATT_city'                          => array('LIKE', $sstr),
+				'Country.CNT_name'                  => array('LIKE', $sstr),
+				'State.STA_name'                    => array('LIKE', $sstr),
+				'ATT_phone'                         => array('LIKE', $sstr),
+				'Registration.REG_final_price'      => array('LIKE', $sstr),
+				'Registration.REG_code'             => array('LIKE', $sstr),
+				'Registration.REG_group_size'       => array('LIKE', $sstr),
+			);
+		}
+		$offset = ($current_page - 1) * $per_page;
+		$limit = $count ? null : array($offset, $per_page);
+		$query_args = array(
+			$_where,
+			'extra_selects' => array('Registration_Count' => array('Registration.REG_ID', 'count', '%d')),
+			'limit'         => $limit,
+		);
+		if (! $count) {
+			$query_args['order_by'] = array($orderby => $sort);
+		}
+		if ($trash) {
+			$query_args[0]['status'] = array('!=', 'publish');
+			$all_attendees = $count
+				? $ATT_MDL->count($query_args, 'ATT_ID', true)
+				: $ATT_MDL->get_all($query_args);
+		} else {
+			$query_args[0]['status'] = array('IN', array('publish'));
+			$all_attendees = $count
+				? $ATT_MDL->count($query_args, 'ATT_ID', true)
+				: $ATT_MDL->get_all($query_args);
+		}
+		return $all_attendees;
+	}
+
+
+	/**
+	 * This is just taking care of resending the registration confirmation
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _resend_registration()
+	{
+		$this->_process_resend_registration();
+		$query_args = isset($this->_req_data['redirect_to'])
+			? array('action' => $this->_req_data['redirect_to'], '_REG_ID' => $this->_req_data['_REG_ID'])
+			: array('action' => 'default');
+		$this->_redirect_after_action(false, '', '', $query_args, true);
+	}
+
+	/**
+	 * Creates a registration report, but accepts the name of a method to use for preparing the query parameters
+	 * to use when selecting registrations
+	 *
+	 * @param string $method_name_for_getting_query_params the name of the method (on this class) to use for preparing
+	 *                                                     the query parameters from the request
+	 * @return void ends the request with a redirect or download
+	 */
+	public function _registrations_report_base($method_name_for_getting_query_params)
+	{
+		if (! defined('EE_USE_OLD_CSV_REPORT_CLASS')) {
+			wp_redirect(
+				EE_Admin_Page::add_query_args_and_nonce(
+					array(
+						'page'        => 'espresso_batch',
+						'batch'       => 'file',
+						'EVT_ID'      => isset($this->_req_data['EVT_ID']) ? $this->_req_data['EVT_ID'] : null,
+						'filters'     => urlencode(
+							serialize(
+								call_user_func(
+									array($this, $method_name_for_getting_query_params),
+									EEH_Array::is_set(
+										$this->_req_data,
+										'filters',
+										array()
+									)
+								)
+							)
+						),
+						'use_filters' => EEH_Array::is_set($this->_req_data, 'use_filters', false),
+						'job_handler' => urlencode('EventEspressoBatchRequest\JobHandlers\RegistrationsReport'),
+						'return_url'  => urlencode($this->_req_data['return_url']),
+					)
+				)
+			);
+		} else {
+			$new_request_args = array(
+				'export' => 'report',
+				'action' => 'registrations_report_for_event',
+				'EVT_ID' => isset($this->_req_data['EVT_ID']) ? $this->_req_data['EVT_ID'] : null,
+			);
+			$this->_req_data = array_merge($this->_req_data, $new_request_args);
+			if (is_readable(EE_CLASSES . 'EE_Export.class.php')) {
+				require_once(EE_CLASSES . 'EE_Export.class.php');
+				$EE_Export = EE_Export::instance($this->_req_data);
+				$EE_Export->export();
+			}
+		}
+	}
+
+
+	/**
+	 * Creates a registration report using only query parameters in the request
+	 *
+	 * @return void
+	 */
+	public function _registrations_report()
+	{
+		$this->_registrations_report_base('_get_registration_query_parameters');
+	}
+
+
+	public function _contact_list_export()
+	{
+		if (is_readable(EE_CLASSES . 'EE_Export.class.php')) {
+			require_once(EE_CLASSES . 'EE_Export.class.php');
+			$EE_Export = EE_Export::instance($this->_req_data);
+			$EE_Export->export_attendees();
+		}
+	}
+
+
+	public function _contact_list_report()
+	{
+		if (! defined('EE_USE_OLD_CSV_REPORT_CLASS')) {
+			wp_redirect(
+				EE_Admin_Page::add_query_args_and_nonce(
+					array(
+						'page'        => 'espresso_batch',
+						'batch'       => 'file',
+						'job_handler' => urlencode('EventEspressoBatchRequest\JobHandlers\AttendeesReport'),
+						'return_url'  => urlencode($this->_req_data['return_url']),
+					)
+				)
+			);
+		} else {
+			if (is_readable(EE_CLASSES . 'EE_Export.class.php')) {
+				require_once(EE_CLASSES . 'EE_Export.class.php');
+				$EE_Export = EE_Export::instance($this->_req_data);
+				$EE_Export->report_attendees();
+			}
+		}
+	}
+
+
+
+
+
+	/***************************************        ATTENDEE DETAILS        ***************************************/
+	/**
+	 * This duplicates the attendee object for the given incoming registration id and attendee_id.
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _duplicate_attendee()
+	{
+		$action = ! empty($this->_req_data['return']) ? $this->_req_data['return'] : 'default';
+		// verify we have necessary info
+		if (empty($this->_req_data['_REG_ID'])) {
+			EE_Error::add_error(
+				esc_html__(
+					'Unable to create the contact for the registration because the required parameters are not present (_REG_ID )',
+					'event_espresso'
+				),
+				__FILE__,
+				__LINE__,
+				__FUNCTION__
+			);
+			$query_args = array('action' => $action);
+			$this->_redirect_after_action('', '', '', $query_args, true);
+		}
+		// okay necessary deets present... let's dupe the incoming attendee and attach to incoming registration.
+		$registration = EEM_Registration::instance()->get_one_by_ID($this->_req_data['_REG_ID']);
+		$attendee = $registration->attendee();
+		// remove relation of existing attendee on registration
+		$registration->_remove_relation_to($attendee, 'Attendee');
+		// new attendee
+		$new_attendee = clone $attendee;
+		$new_attendee->set('ATT_ID', 0);
+		$new_attendee->save();
+		// add new attendee to reg
+		$registration->_add_relation_to($new_attendee, 'Attendee');
+		EE_Error::add_success(
+			esc_html__(
+				'New Contact record created.  Now make any edits you wish to make for this contact.',
+				'event_espresso'
+			)
+		);
+		// redirect to edit page for attendee
+		$query_args = array('post' => $new_attendee->ID(), 'action' => 'edit_attendee');
+		$this->_redirect_after_action('', '', '', $query_args, true);
+	}
+
+
+	/**
+	 * Callback invoked by parent EE_Admin_CPT class hooked in on `save_post` wp hook.
+	 *
+	 * @param int     $post_id
+	 * @param WP_POST $post
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws LogicException
+	 * @throws InvalidFormSubmissionException
+	 */
+	protected function _insert_update_cpt_item($post_id, $post)
+	{
+		$success = true;
+		$attendee = $post instanceof WP_Post && $post->post_type === 'espresso_attendees'
+			? EEM_Attendee::instance()->get_one_by_ID($post_id)
+			: null;
+		// for attendee updates
+		if ($attendee instanceof EE_Attendee) {
+			// note we should only be UPDATING attendees at this point.
+			$updated_fields = array(
+				'ATT_fname'     => $this->_req_data['ATT_fname'],
+				'ATT_lname'     => $this->_req_data['ATT_lname'],
+				'ATT_full_name' => $this->_req_data['ATT_fname'] . ' ' . $this->_req_data['ATT_lname'],
+				'ATT_address'   => isset($this->_req_data['ATT_address']) ? $this->_req_data['ATT_address'] : '',
+				'ATT_address2'  => isset($this->_req_data['ATT_address2']) ? $this->_req_data['ATT_address2'] : '',
+				'ATT_city'      => isset($this->_req_data['ATT_city']) ? $this->_req_data['ATT_city'] : '',
+				'STA_ID'        => isset($this->_req_data['STA_ID']) ? $this->_req_data['STA_ID'] : '',
+				'CNT_ISO'       => isset($this->_req_data['CNT_ISO']) ? $this->_req_data['CNT_ISO'] : '',
+				'ATT_zip'       => isset($this->_req_data['ATT_zip']) ? $this->_req_data['ATT_zip'] : '',
+			);
+			foreach ($updated_fields as $field => $value) {
+				$attendee->set($field, $value);
+			}
+
+			// process contact details metabox form handler (which will also save the attendee)
+			$contact_details_form = $this->getAttendeeContactDetailsMetaboxFormHandler($attendee);
+			$success = $contact_details_form->process($this->_req_data);
+
+			$attendee_update_callbacks = apply_filters(
+				'FHEE__Registrations_Admin_Page__insert_update_cpt_item__attendee_update',
+				array()
+			);
+			foreach ($attendee_update_callbacks as $a_callback) {
+				if (false === call_user_func_array($a_callback, array($attendee, $this->_req_data))) {
+					throw new EE_Error(
+						sprintf(
+							esc_html__(
+								'The %s callback given for the "FHEE__Registrations_Admin_Page__insert_update_cpt_item__attendee_update" filter is not a valid callback.  Please check the spelling.',
+								'event_espresso'
+							),
+							$a_callback
+						)
+					);
+				}
+			}
+		}
+
+		if ($success === false) {
+			EE_Error::add_error(
+				esc_html__(
+					'Something went wrong with updating the meta table data for the registration.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+	}
+
+
+	public function trash_cpt_item($post_id)
+	{
+	}
+
+
+	public function delete_cpt_item($post_id)
+	{
+	}
+
+
+	public function restore_cpt_item($post_id)
+	{
+	}
+
+
+	protected function _restore_cpt_item($post_id, $revision_id)
+	{
+	}
+
+
+	public function attendee_editor_metaboxes()
+	{
+		$this->verify_cpt_object();
+		remove_meta_box(
+			'postexcerpt',
+			esc_html__('Excerpt', 'event_espresso'),
+			'post_excerpt_meta_box',
+			$this->_cpt_routes[ $this->_req_action ],
+			'normal',
+			'core'
+		);
+		remove_meta_box('commentstatusdiv', $this->_cpt_routes[ $this->_req_action ], 'normal', 'core');
+		if (post_type_supports('espresso_attendees', 'excerpt')) {
+			add_meta_box(
+				'postexcerpt',
+				esc_html__('Short Biography', 'event_espresso'),
+				'post_excerpt_meta_box',
+				$this->_cpt_routes[ $this->_req_action ],
+				'normal'
+			);
+		}
+		if (post_type_supports('espresso_attendees', 'comments')) {
+			add_meta_box(
+				'commentsdiv',
+				esc_html__('Notes on the Contact', 'event_espresso'),
+				'post_comment_meta_box',
+				$this->_cpt_routes[ $this->_req_action ],
+				'normal',
+				'core'
+			);
+		}
+		add_meta_box(
+			'attendee_contact_info',
+			esc_html__('Contact Info', 'event_espresso'),
+			array($this, 'attendee_contact_info'),
+			$this->_cpt_routes[ $this->_req_action ],
+			'side',
+			'core'
+		);
+		add_meta_box(
+			'attendee_details_address',
+			esc_html__('Address Details', 'event_espresso'),
+			array($this, 'attendee_address_details'),
+			$this->_cpt_routes[ $this->_req_action ],
+			'normal',
+			'core'
+		);
+		add_meta_box(
+			'attendee_registrations',
+			esc_html__('Registrations for this Contact', 'event_espresso'),
+			array($this, 'attendee_registrations_meta_box'),
+			$this->_cpt_routes[ $this->_req_action ],
+			'normal',
+			'high'
+		);
+	}
+
+
+	/**
+	 * Metabox for attendee contact info
+	 *
+	 * @param  WP_Post $post wp post object
+	 * @return string attendee contact info ( and form )
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws LogicException
+	 * @throws DomainException
+	 */
+	public function attendee_contact_info($post)
+	{
+		// get attendee object ( should already have it )
+		$form = $this->getAttendeeContactDetailsMetaboxFormHandler($this->_cpt_model_obj);
+		$form->enqueueStylesAndScripts();
+		echo $form->display();
+	}
+
+
+	/**
+	 * Return form handler for the contact details metabox
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return AttendeeContactDetailsMetaboxFormHandler
+	 * @throws DomainException
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function getAttendeeContactDetailsMetaboxFormHandler(EE_Attendee $attendee)
+	{
+		return new AttendeeContactDetailsMetaboxFormHandler($attendee, EE_Registry::instance());
+	}
+
+
+	/**
+	 * Metabox for attendee details
+	 *
+	 * @param  WP_Post $post wp post object
+	 * @throws DomainException
+	 */
+	public function attendee_address_details($post)
+	{
+		// get attendee object (should already have it)
+		$this->_template_args['attendee'] = $this->_cpt_model_obj;
+		$this->_template_args['state_html'] = EEH_Form_Fields::generate_form_input(
+			new EE_Question_Form_Input(
+				EE_Question::new_instance(
+					array(
+						'QST_ID'           => 0,
+						'QST_display_text' => esc_html__('State/Province', 'event_espresso'),
+						'QST_system'       => 'admin-state',
+					)
+				),
+				EE_Answer::new_instance(
+					array(
+						'ANS_ID'    => 0,
+						'ANS_value' => $this->_cpt_model_obj->state_ID(),
+					)
+				),
+				array(
+					'input_id'       => 'STA_ID',
+					'input_name'     => 'STA_ID',
+					'input_prefix'   => '',
+					'append_qstn_id' => false,
+				)
+			)
+		);
+		$this->_template_args['country_html'] = EEH_Form_Fields::generate_form_input(
+			new EE_Question_Form_Input(
+				EE_Question::new_instance(
+					array(
+						'QST_ID'           => 0,
+						'QST_display_text' => esc_html__('Country', 'event_espresso'),
+						'QST_system'       => 'admin-country',
+					)
+				),
+				EE_Answer::new_instance(
+					array(
+						'ANS_ID'    => 0,
+						'ANS_value' => $this->_cpt_model_obj->country_ID(),
+					)
+				),
+				array(
+					'input_id'       => 'CNT_ISO',
+					'input_name'     => 'CNT_ISO',
+					'input_prefix'   => '',
+					'append_qstn_id' => false,
+				)
+			)
+		);
+		$template =
+			REG_TEMPLATE_PATH . 'attendee_address_details_metabox_content.template.php';
+		EEH_Template::display_template($template, $this->_template_args);
+	}
+
+
+	/**
+	 *        _attendee_details
+	 *
+	 * @access protected
+	 * @param $post
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	public function attendee_registrations_meta_box($post)
+	{
+		$this->_template_args['attendee'] = $this->_cpt_model_obj;
+		$this->_template_args['registrations'] = $this->_cpt_model_obj->get_many_related('Registration');
+		$template =
+			REG_TEMPLATE_PATH . 'attendee_registrations_main_meta_box.template.php';
+		EEH_Template::display_template($template, $this->_template_args);
+	}
+
+
+	/**
+	 * add in the form fields for the attendee edit
+	 *
+	 * @param  WP_Post $post wp post object
+	 * @return string html for new form.
+	 * @throws DomainException
+	 */
+	public function after_title_form_fields($post)
+	{
+		if ($post->post_type == 'espresso_attendees') {
+			$template = REG_TEMPLATE_PATH . 'attendee_details_after_title_form_fields.template.php';
+			$template_args['attendee'] = $this->_cpt_model_obj;
+			EEH_Template::display_template($template, $template_args);
+		}
+	}
+
+
+	/**
+	 *        _trash_or_restore_attendee
+	 *
+	 * @param boolean $trash - whether to move item to trash (TRUE) or restore it (FALSE)
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @access protected
+	 */
+	protected function _trash_or_restore_attendees($trash = true)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$ATT_MDL = EEM_Attendee::instance();
+		$success = 1;
+		// Checkboxes
+		if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
+			// if array has more than one element than success message should be plural
+			$success = count($this->_req_data['checkbox']) > 1 ? 2 : 1;
+			// cycle thru checkboxes
+			while (list($ATT_ID, $value) = each($this->_req_data['checkbox'])) {
+				$updated = $trash ? $ATT_MDL->update_by_ID(array('status' => 'trash'), $ATT_ID)
+					: $ATT_MDL->update_by_ID(array('status' => 'publish'), $ATT_ID);
+				if (! $updated) {
+					$success = 0;
+				}
+			}
+		} else {
+			// grab single id and delete
+			$ATT_ID = absint($this->_req_data['ATT_ID']);
+			// get attendee
+			$att = $ATT_MDL->get_one_by_ID($ATT_ID);
+			$updated = $trash ? $att->set_status('trash') : $att->set_status('publish');
+			$updated = $att->save();
+			if (! $updated) {
+				$success = 0;
+			}
+		}
+		$what = $success > 1
+			? esc_html__('Contacts', 'event_espresso')
+			: esc_html__('Contact', 'event_espresso');
+		$action_desc = $trash
+			? esc_html__('moved to the trash', 'event_espresso')
+			: esc_html__('restored', 'event_espresso');
+		$this->_redirect_after_action($success, $what, $action_desc, array('action' => 'contact_list'));
+	}
 }

core/domain/DomainBase.php

Indentation +149 added lines, -149 removed lines

@@ -16,153 +16,153 @@
 abstract class DomainBase implements DomainInterface
 {
 
-    /**
-     * Equivalent to `__FILE__` for main plugin file.
-     *
-     * @var FilePath
-     */
-    private $plugin_file;
-
-    /**
-     * String indicating version for plugin
-     *
-     * @var string
-     */
-    private $version;
-
-    /**
-     * @var string $plugin_basename
-     */
-    private $plugin_basename;
-
-    /**
-     * @var string $plugin_path
-     */
-    private $plugin_path;
-
-    /**
-     * @var string $plugin_url
-     */
-    private $plugin_url;
-
-    /**
-     * @var string $asset_namespace
-     */
-    private $asset_namespace;
-
-
-
-    /**
-     * Initializes internal properties.
-     *
-     * @param FilePath $plugin_file
-     * @param Version  $version
-     */
-    public function __construct(FilePath $plugin_file, Version $version)
-    {
-        $this->plugin_file = $plugin_file;
-        $this->version = $version;
-        $this->plugin_basename = plugin_basename($this->pluginFile());
-        $this->plugin_path = plugin_dir_path($this->pluginFile());
-        $this->plugin_url = plugin_dir_url($this->pluginFile());
-        $this->setAssetNamespace();
-    }
-
-
-    /**
-     * @return string
-     */
-    public function pluginFile()
-    {
-        return (string) $this->plugin_file;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function pluginBasename()
-    {
-        return $this->plugin_basename;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function pluginPath()
-    {
-        return $this->plugin_path;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function pluginUrl()
-    {
-        return $this->plugin_url;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function version()
-    {
-        return (string) $this->version;
-    }
-
-
-
-    /**
-     * @return Version
-     */
-    public function versionValueObject()
-    {
-        return $this->version;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function distributionAssetsPath()
-    {
-        return $this->pluginPath() . 'assets/dist/';
-    }
-
-
-    /**
-     * @return string
-     */
-    public function distributionAssetsUrl()
-    {
-        return $this->pluginUrl() . 'assets/dist/';
-    }
-
-
-    /**
-     * @return string
-     */
-    public function assetNamespace()
-    {
-        return $this->asset_namespace;
-    }
-
-
-    /**
-     * @return void
-     */
-    private function setAssetNamespace()
-    {
-        $this->asset_namespace = sanitize_key(
-            // convert directory separators to dashes and remove file extension
-            str_replace(array('/', '.php'), array('-', ''), $this->plugin_basename)
-        );
-    }
+	/**
+	 * Equivalent to `__FILE__` for main plugin file.
+	 *
+	 * @var FilePath
+	 */
+	private $plugin_file;
+
+	/**
+	 * String indicating version for plugin
+	 *
+	 * @var string
+	 */
+	private $version;
+
+	/**
+	 * @var string $plugin_basename
+	 */
+	private $plugin_basename;
+
+	/**
+	 * @var string $plugin_path
+	 */
+	private $plugin_path;
+
+	/**
+	 * @var string $plugin_url
+	 */
+	private $plugin_url;
+
+	/**
+	 * @var string $asset_namespace
+	 */
+	private $asset_namespace;
+
+
+
+	/**
+	 * Initializes internal properties.
+	 *
+	 * @param FilePath $plugin_file
+	 * @param Version  $version
+	 */
+	public function __construct(FilePath $plugin_file, Version $version)
+	{
+		$this->plugin_file = $plugin_file;
+		$this->version = $version;
+		$this->plugin_basename = plugin_basename($this->pluginFile());
+		$this->plugin_path = plugin_dir_path($this->pluginFile());
+		$this->plugin_url = plugin_dir_url($this->pluginFile());
+		$this->setAssetNamespace();
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function pluginFile()
+	{
+		return (string) $this->plugin_file;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function pluginBasename()
+	{
+		return $this->plugin_basename;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function pluginPath()
+	{
+		return $this->plugin_path;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function pluginUrl()
+	{
+		return $this->plugin_url;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function version()
+	{
+		return (string) $this->version;
+	}
+
+
+
+	/**
+	 * @return Version
+	 */
+	public function versionValueObject()
+	{
+		return $this->version;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function distributionAssetsPath()
+	{
+		return $this->pluginPath() . 'assets/dist/';
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function distributionAssetsUrl()
+	{
+		return $this->pluginUrl() . 'assets/dist/';
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function assetNamespace()
+	{
+		return $this->asset_namespace;
+	}
+
+
+	/**
+	 * @return void
+	 */
+	private function setAssetNamespace()
+	{
+		$this->asset_namespace = sanitize_key(
+			// convert directory separators to dashes and remove file extension
+			str_replace(array('/', '.php'), array('-', ''), $this->plugin_basename)
+		);
+	}
 }

core/services/assets/Registry.php

Indentation +573 added lines, -573 removed lines

@@ -23,584 +23,584 @@
 class Registry
 {
 
-    const FILE_NAME_BUILD_MANIFEST = 'build-manifest.json';
-
-    /**
-     * @var AssetCollection $assets
-     */
-    protected $assets;
-
-    /**
-     * @var I18nRegistry
-     */
-    private $i18n_registry;
-
-    /**
-     * This holds the jsdata data object that will be exposed on pages that enqueue the `eejs-core` script.
-     *
-     * @var array
-     */
-    protected $jsdata = array();
-
-    /**
-     * This keeps track of all scripts with registered data.  It is used to prevent duplicate data objects setup in the
-     * page source.
-     *
-     * @var array
-     */
-    private $script_handles_with_data = array();
-
-    /**
-     * Holds the manifest data obtained from registered manifest files.
-     * Manifests are maps of asset chunk name to actual built asset file names.
-     * Shape of this array is:
-     * array(
-     *  'some_namespace_slug' => array(
-     *      'some_chunk_name' => array(
-     *          'js' => 'filename.js'
-     *          'css' => 'filename.js'
-     *      ),
-     *      'url_base' => 'https://baseurl.com/to/assets
-     *  )
-     * )
-     *
-     * @var array
-     */
-    private $manifest_data = array();
-
-
-    /**
-     * Registry constructor.
-     * Hooking into WP actions for script registry.
-     *
-     * @param AssetCollection $assets
-     * @param I18nRegistry    $i18n_registry
-     */
-    public function __construct(AssetCollection $assets, I18nRegistry $i18n_registry)
-    {
-        $this->assets = $assets;
-        $this->i18n_registry = $i18n_registry;
-        add_action('wp_enqueue_scripts', array($this, 'registerManifestFiles'), 1);
-        add_action('admin_enqueue_scripts', array($this, 'registerManifestFiles'), 1);
-        add_action('wp_enqueue_scripts', array($this, 'registerScriptsAndStyles'), 3);
-        add_action('admin_enqueue_scripts', array($this, 'registerScriptsAndStyles'), 3);
-        add_action('wp_enqueue_scripts', array($this, 'enqueueData'), 4);
-        add_action('admin_enqueue_scripts', array($this, 'enqueueData'), 4);
-        add_action('wp_print_footer_scripts', array($this, 'enqueueData'), 1);
-        add_action('admin_print_footer_scripts', array($this, 'enqueueData'), 1);
-    }
-
-
-    /**
-     * For classes that have Registry as a dependency, this provides a handy way to register script handles for i18n
-     * translation handling.
-     *
-     * @return I18nRegistry
-     */
-    public function getI18nRegistry()
-    {
-        return $this->i18n_registry;
-    }
-
-
-    /**
-     * Callback for the wp_enqueue_scripts actions used to register assets.
-     *
-     * @since 4.9.62.p
-     * @throws Exception
-     */
-    public function registerScriptsAndStyles()
-    {
-        try {
-            $this->registerScripts($this->assets->getJavascriptAssets());
-            $this->registerStyles($this->assets->getStylesheetAssets());
-        } catch (Exception $exception) {
-            new ExceptionStackTraceDisplay($exception);
-        }
-    }
-
-
-    /**
-     * Registers JS assets with WP core
-     *
-     * @since 4.9.62.p
-     * @param JavascriptAsset[] $scripts
-     * @throws AssetRegistrationException
-     * @throws InvalidDataTypeException
-     */
-    public function registerScripts(array $scripts)
-    {
-        foreach ($scripts as $script) {
-            // skip to next script if this has already been done
-            if ($script->isRegistered()) {
-                continue;
-            }
-            do_action(
-                'AHEE__EventEspresso_core_services_assets_Registry__registerScripts__before_script',
-                $script
-            );
-            $registered = wp_register_script(
-                $script->handle(),
-                $script->source(),
-                $script->dependencies(),
-                $script->version(),
-                $script->loadInFooter()
-            );
-            if (! $registered && $this->debug()) {
-                throw new AssetRegistrationException($script->handle());
-            }
-            $script->setRegistered($registered);
-            if ($script->requiresTranslation()) {
-                $this->registerTranslation($script->handle());
-            }
-            do_action(
-                'AHEE__EventEspresso_core_services_assets_Registry__registerScripts__after_script',
-                $script
-            );
-        }
-    }
-
-
-    /**
-     * Registers CSS assets with WP core
-     *
-     * @since 4.9.62.p
-     * @param StylesheetAsset[] $styles
-     * @throws InvalidDataTypeException
-     */
-    public function registerStyles(array $styles)
-    {
-        foreach ($styles as $style) {
-            // skip to next style if this has already been done
-            if ($style->isRegistered()) {
-                continue;
-            }
-            do_action(
-                'AHEE__EventEspresso_core_services_assets_Registry__registerStyles__before_style',
-                $style
-            );
-            wp_register_style(
-                $style->handle(),
-                $style->source(),
-                $style->dependencies(),
-                $style->version(),
-                $style->media()
-            );
-            $style->setRegistered();
-            do_action(
-                'AHEE__EventEspresso_core_services_assets_Registry__registerStyles__after_style',
-                $style
-            );
-        }
-    }
-
-
-    /**
-     * Call back for the script print in frontend and backend.
-     * Used to call wp_localize_scripts so that data can be added throughout the runtime until this later hook point.
-     *
-     * @since 4.9.31.rc.015
-     */
-    public function enqueueData()
-    {
-        $this->removeAlreadyRegisteredDataForScriptHandles();
-        wp_add_inline_script(
-            'eejs-core',
-            'var eejsdata=' . wp_json_encode(array('data' => $this->jsdata)),
-            'before'
-        );
-        $scripts = $this->assets->getJavascriptAssetsWithData();
-        foreach ($scripts as $script) {
-            $this->addRegisteredScriptHandlesWithData($script->handle());
-            if ($script->hasInlineDataCallback()) {
-                $localize = $script->inlineDataCallback();
-                $localize();
-            }
-        }
-    }
-
-
-    /**
-     * Used to add data to eejs.data object.
-     * Note:  Overriding existing data is not allowed.
-     * Data will be accessible as a javascript object when you list `eejs-core` as a dependency for your javascript.
-     * If the data you add is something like this:
-     *  $this->addData( 'my_plugin_data', array( 'foo' => 'gar' ) );
-     * It will be exposed in the page source as:
-     *  eejs.data.my_plugin_data.foo == gar
-     *
-     * @param string       $key   Key used to access your data
-     * @param string|array $value Value to attach to key
-     * @throws InvalidArgumentException
-     */
-    public function addData($key, $value)
-    {
-        if ($this->verifyDataNotExisting($key)) {
-            $this->jsdata[ $key ] = $value;
-        }
-    }
-
-
-    /**
-     * Similar to addData except this allows for users to push values to an existing key where the values on key are
-     * elements in an array.
-     * When you use this method, the value you include will be appended to the end of an array on $key.
-     * So if the $key was 'test' and you added a value of 'my_data' then it would be represented in the javascript
-     * object like this, eejs.data.test = [ my_data,
-     * ]
-     * If there has already been a scalar value attached to the data object given key, then
-     * this will throw an exception.
-     *
-     * @param string       $key   Key to attach data to.
-     * @param string|array $value Value being registered.
-     * @throws InvalidArgumentException
-     */
-    public function pushData($key, $value)
-    {
-        if (isset($this->jsdata[ $key ])
-            && ! is_array($this->jsdata[ $key ])
-        ) {
-            if (! $this->debug()) {
-                return;
-            }
-            throw new InvalidArgumentException(
-                sprintf(
-                    __(
-                        'The value for %1$s is already set and it is not an array. The %2$s method can only be used to
+	const FILE_NAME_BUILD_MANIFEST = 'build-manifest.json';
+
+	/**
+	 * @var AssetCollection $assets
+	 */
+	protected $assets;
+
+	/**
+	 * @var I18nRegistry
+	 */
+	private $i18n_registry;
+
+	/**
+	 * This holds the jsdata data object that will be exposed on pages that enqueue the `eejs-core` script.
+	 *
+	 * @var array
+	 */
+	protected $jsdata = array();
+
+	/**
+	 * This keeps track of all scripts with registered data.  It is used to prevent duplicate data objects setup in the
+	 * page source.
+	 *
+	 * @var array
+	 */
+	private $script_handles_with_data = array();
+
+	/**
+	 * Holds the manifest data obtained from registered manifest files.
+	 * Manifests are maps of asset chunk name to actual built asset file names.
+	 * Shape of this array is:
+	 * array(
+	 *  'some_namespace_slug' => array(
+	 *      'some_chunk_name' => array(
+	 *          'js' => 'filename.js'
+	 *          'css' => 'filename.js'
+	 *      ),
+	 *      'url_base' => 'https://baseurl.com/to/assets
+	 *  )
+	 * )
+	 *
+	 * @var array
+	 */
+	private $manifest_data = array();
+
+
+	/**
+	 * Registry constructor.
+	 * Hooking into WP actions for script registry.
+	 *
+	 * @param AssetCollection $assets
+	 * @param I18nRegistry    $i18n_registry
+	 */
+	public function __construct(AssetCollection $assets, I18nRegistry $i18n_registry)
+	{
+		$this->assets = $assets;
+		$this->i18n_registry = $i18n_registry;
+		add_action('wp_enqueue_scripts', array($this, 'registerManifestFiles'), 1);
+		add_action('admin_enqueue_scripts', array($this, 'registerManifestFiles'), 1);
+		add_action('wp_enqueue_scripts', array($this, 'registerScriptsAndStyles'), 3);
+		add_action('admin_enqueue_scripts', array($this, 'registerScriptsAndStyles'), 3);
+		add_action('wp_enqueue_scripts', array($this, 'enqueueData'), 4);
+		add_action('admin_enqueue_scripts', array($this, 'enqueueData'), 4);
+		add_action('wp_print_footer_scripts', array($this, 'enqueueData'), 1);
+		add_action('admin_print_footer_scripts', array($this, 'enqueueData'), 1);
+	}
+
+
+	/**
+	 * For classes that have Registry as a dependency, this provides a handy way to register script handles for i18n
+	 * translation handling.
+	 *
+	 * @return I18nRegistry
+	 */
+	public function getI18nRegistry()
+	{
+		return $this->i18n_registry;
+	}
+
+
+	/**
+	 * Callback for the wp_enqueue_scripts actions used to register assets.
+	 *
+	 * @since 4.9.62.p
+	 * @throws Exception
+	 */
+	public function registerScriptsAndStyles()
+	{
+		try {
+			$this->registerScripts($this->assets->getJavascriptAssets());
+			$this->registerStyles($this->assets->getStylesheetAssets());
+		} catch (Exception $exception) {
+			new ExceptionStackTraceDisplay($exception);
+		}
+	}
+
+
+	/**
+	 * Registers JS assets with WP core
+	 *
+	 * @since 4.9.62.p
+	 * @param JavascriptAsset[] $scripts
+	 * @throws AssetRegistrationException
+	 * @throws InvalidDataTypeException
+	 */
+	public function registerScripts(array $scripts)
+	{
+		foreach ($scripts as $script) {
+			// skip to next script if this has already been done
+			if ($script->isRegistered()) {
+				continue;
+			}
+			do_action(
+				'AHEE__EventEspresso_core_services_assets_Registry__registerScripts__before_script',
+				$script
+			);
+			$registered = wp_register_script(
+				$script->handle(),
+				$script->source(),
+				$script->dependencies(),
+				$script->version(),
+				$script->loadInFooter()
+			);
+			if (! $registered && $this->debug()) {
+				throw new AssetRegistrationException($script->handle());
+			}
+			$script->setRegistered($registered);
+			if ($script->requiresTranslation()) {
+				$this->registerTranslation($script->handle());
+			}
+			do_action(
+				'AHEE__EventEspresso_core_services_assets_Registry__registerScripts__after_script',
+				$script
+			);
+		}
+	}
+
+
+	/**
+	 * Registers CSS assets with WP core
+	 *
+	 * @since 4.9.62.p
+	 * @param StylesheetAsset[] $styles
+	 * @throws InvalidDataTypeException
+	 */
+	public function registerStyles(array $styles)
+	{
+		foreach ($styles as $style) {
+			// skip to next style if this has already been done
+			if ($style->isRegistered()) {
+				continue;
+			}
+			do_action(
+				'AHEE__EventEspresso_core_services_assets_Registry__registerStyles__before_style',
+				$style
+			);
+			wp_register_style(
+				$style->handle(),
+				$style->source(),
+				$style->dependencies(),
+				$style->version(),
+				$style->media()
+			);
+			$style->setRegistered();
+			do_action(
+				'AHEE__EventEspresso_core_services_assets_Registry__registerStyles__after_style',
+				$style
+			);
+		}
+	}
+
+
+	/**
+	 * Call back for the script print in frontend and backend.
+	 * Used to call wp_localize_scripts so that data can be added throughout the runtime until this later hook point.
+	 *
+	 * @since 4.9.31.rc.015
+	 */
+	public function enqueueData()
+	{
+		$this->removeAlreadyRegisteredDataForScriptHandles();
+		wp_add_inline_script(
+			'eejs-core',
+			'var eejsdata=' . wp_json_encode(array('data' => $this->jsdata)),
+			'before'
+		);
+		$scripts = $this->assets->getJavascriptAssetsWithData();
+		foreach ($scripts as $script) {
+			$this->addRegisteredScriptHandlesWithData($script->handle());
+			if ($script->hasInlineDataCallback()) {
+				$localize = $script->inlineDataCallback();
+				$localize();
+			}
+		}
+	}
+
+
+	/**
+	 * Used to add data to eejs.data object.
+	 * Note:  Overriding existing data is not allowed.
+	 * Data will be accessible as a javascript object when you list `eejs-core` as a dependency for your javascript.
+	 * If the data you add is something like this:
+	 *  $this->addData( 'my_plugin_data', array( 'foo' => 'gar' ) );
+	 * It will be exposed in the page source as:
+	 *  eejs.data.my_plugin_data.foo == gar
+	 *
+	 * @param string       $key   Key used to access your data
+	 * @param string|array $value Value to attach to key
+	 * @throws InvalidArgumentException
+	 */
+	public function addData($key, $value)
+	{
+		if ($this->verifyDataNotExisting($key)) {
+			$this->jsdata[ $key ] = $value;
+		}
+	}
+
+
+	/**
+	 * Similar to addData except this allows for users to push values to an existing key where the values on key are
+	 * elements in an array.
+	 * When you use this method, the value you include will be appended to the end of an array on $key.
+	 * So if the $key was 'test' and you added a value of 'my_data' then it would be represented in the javascript
+	 * object like this, eejs.data.test = [ my_data,
+	 * ]
+	 * If there has already been a scalar value attached to the data object given key, then
+	 * this will throw an exception.
+	 *
+	 * @param string       $key   Key to attach data to.
+	 * @param string|array $value Value being registered.
+	 * @throws InvalidArgumentException
+	 */
+	public function pushData($key, $value)
+	{
+		if (isset($this->jsdata[ $key ])
+			&& ! is_array($this->jsdata[ $key ])
+		) {
+			if (! $this->debug()) {
+				return;
+			}
+			throw new InvalidArgumentException(
+				sprintf(
+					__(
+						'The value for %1$s is already set and it is not an array. The %2$s method can only be used to
                          push values to this data element when it is an array.',
-                        'event_espresso'
-                    ),
-                    $key,
-                    __METHOD__
-                )
-            );
-        }
-        $this->jsdata[ $key ][] = $value;
-    }
-
-
-    /**
-     * Used to set content used by javascript for a template.
-     * Note: Overrides of existing registered templates are not allowed.
-     *
-     * @param string $template_reference
-     * @param string $template_content
-     * @throws InvalidArgumentException
-     */
-    public function addTemplate($template_reference, $template_content)
-    {
-        if (! isset($this->jsdata['templates'])) {
-            $this->jsdata['templates'] = array();
-        }
-        //no overrides allowed.
-        if (isset($this->jsdata['templates'][ $template_reference ])) {
-            if (! $this->debug()) {
-                return;
-            }
-            throw new InvalidArgumentException(
-                sprintf(
-                    __(
-                        'The %1$s key already exists for the templates array in the js data array.  No overrides are allowed.',
-                        'event_espresso'
-                    ),
-                    $template_reference
-                )
-            );
-        }
-        $this->jsdata['templates'][ $template_reference ] = $template_content;
-    }
-
-
-    /**
-     * Retrieve the template content already registered for the given reference.
-     *
-     * @param string $template_reference
-     * @return string
-     */
-    public function getTemplate($template_reference)
-    {
-        return isset($this->jsdata['templates'][ $template_reference ])
-            ? $this->jsdata['templates'][ $template_reference ]
-            : '';
-    }
-
-
-    /**
-     * Retrieve registered data.
-     *
-     * @param string $key Name of key to attach data to.
-     * @return mixed                If there is no for the given key, then false is returned.
-     */
-    public function getData($key)
-    {
-        return isset($this->jsdata[ $key ])
-            ? $this->jsdata[ $key ]
-            : false;
-    }
-
-
-    /**
-     * Verifies whether the given data exists already on the jsdata array.
-     * Overriding data is not allowed.
-     *
-     * @param string $key Index for data.
-     * @return bool        If valid then return true.
-     * @throws InvalidArgumentException if data already exists.
-     */
-    protected function verifyDataNotExisting($key)
-    {
-        if (isset($this->jsdata[ $key ])) {
-            if (! $this->debug()) {
-                return false;
-            }
-            if (is_array($this->jsdata[ $key ])) {
-                throw new InvalidArgumentException(
-                    sprintf(
-                        __(
-                            'The value for %1$s already exists in the Registry::eejs object.
+						'event_espresso'
+					),
+					$key,
+					__METHOD__
+				)
+			);
+		}
+		$this->jsdata[ $key ][] = $value;
+	}
+
+
+	/**
+	 * Used to set content used by javascript for a template.
+	 * Note: Overrides of existing registered templates are not allowed.
+	 *
+	 * @param string $template_reference
+	 * @param string $template_content
+	 * @throws InvalidArgumentException
+	 */
+	public function addTemplate($template_reference, $template_content)
+	{
+		if (! isset($this->jsdata['templates'])) {
+			$this->jsdata['templates'] = array();
+		}
+		//no overrides allowed.
+		if (isset($this->jsdata['templates'][ $template_reference ])) {
+			if (! $this->debug()) {
+				return;
+			}
+			throw new InvalidArgumentException(
+				sprintf(
+					__(
+						'The %1$s key already exists for the templates array in the js data array.  No overrides are allowed.',
+						'event_espresso'
+					),
+					$template_reference
+				)
+			);
+		}
+		$this->jsdata['templates'][ $template_reference ] = $template_content;
+	}
+
+
+	/**
+	 * Retrieve the template content already registered for the given reference.
+	 *
+	 * @param string $template_reference
+	 * @return string
+	 */
+	public function getTemplate($template_reference)
+	{
+		return isset($this->jsdata['templates'][ $template_reference ])
+			? $this->jsdata['templates'][ $template_reference ]
+			: '';
+	}
+
+
+	/**
+	 * Retrieve registered data.
+	 *
+	 * @param string $key Name of key to attach data to.
+	 * @return mixed                If there is no for the given key, then false is returned.
+	 */
+	public function getData($key)
+	{
+		return isset($this->jsdata[ $key ])
+			? $this->jsdata[ $key ]
+			: false;
+	}
+
+
+	/**
+	 * Verifies whether the given data exists already on the jsdata array.
+	 * Overriding data is not allowed.
+	 *
+	 * @param string $key Index for data.
+	 * @return bool        If valid then return true.
+	 * @throws InvalidArgumentException if data already exists.
+	 */
+	protected function verifyDataNotExisting($key)
+	{
+		if (isset($this->jsdata[ $key ])) {
+			if (! $this->debug()) {
+				return false;
+			}
+			if (is_array($this->jsdata[ $key ])) {
+				throw new InvalidArgumentException(
+					sprintf(
+						__(
+							'The value for %1$s already exists in the Registry::eejs object.
                             Overrides are not allowed. Since the value of this data is an array, you may want to use the
                             %2$s method to push your value to the array.',
-                            'event_espresso'
-                        ),
-                        $key,
-                        'pushData()'
-                    )
-                );
-            }
-            throw new InvalidArgumentException(
-                sprintf(
-                    __(
-                        'The value for %1$s already exists in the Registry::eejs object. Overrides are not
+							'event_espresso'
+						),
+						$key,
+						'pushData()'
+					)
+				);
+			}
+			throw new InvalidArgumentException(
+				sprintf(
+					__(
+						'The value for %1$s already exists in the Registry::eejs object. Overrides are not
                         allowed.  Consider attaching your value to a different key',
-                        'event_espresso'
-                    ),
-                    $key
-                )
-            );
-        }
-        return true;
-    }
-
-
-    /**
-     * Get the actual asset path for asset manifests.
-     * If there is no asset path found for the given $chunk_name, then the $chunk_name is returned.
-     *
-     * @param string $namespace  The namespace associated with the manifest file hosting the map of chunk_name to actual
-     *                           asset file location.
-     * @param string $chunk_name
-     * @param string $asset_type
-     * @return string
-     * @since 4.9.59.p
-     */
-    public function getAssetUrl($namespace, $chunk_name, $asset_type)
-    {
-        $url = isset(
-            $this->manifest_data[ $namespace ][ $chunk_name . '.' . $asset_type ],
-            $this->manifest_data[ $namespace ]['url_base']
-        )
-            ? $this->manifest_data[ $namespace ]['url_base']
-              . $this->manifest_data[ $namespace ][ $chunk_name . '.' . $asset_type ]
-            : $chunk_name;
-        return apply_filters(
-            'FHEE__EventEspresso_core_services_assets_Registry__getAssetUrl',
-            $url,
-            $namespace,
-            $chunk_name,
-            $asset_type
-        );
-    }
-
-
-    /**
-     * Return the url to a js file for the given namespace and chunk name.
-     *
-     * @param string $namespace
-     * @param string $chunk_name
-     * @return string
-     */
-    public function getJsUrl($namespace, $chunk_name)
-    {
-        return $this->getAssetUrl($namespace, $chunk_name, Asset::TYPE_JS);
-    }
-
-
-    /**
-     * Return the url to a css file for the given namespace and chunk name.
-     *
-     * @param string $namespace
-     * @param string $chunk_name
-     * @return string
-     */
-    public function getCssUrl($namespace, $chunk_name)
-    {
-        return $this->getAssetUrl($namespace, $chunk_name, Asset::TYPE_CSS);
-    }
-
-
-    /**
-     * @since 4.9.62.p
-     * @throws InvalidArgumentException
-     * @throws InvalidFilePathException
-     */
-    public function registerManifestFiles()
-    {
-        $manifest_files = $this->assets->getManifestFiles();
-        foreach ($manifest_files as $manifest_file) {
-            $this->registerManifestFile(
-                $manifest_file->assetNamespace(),
-                $manifest_file->urlBase(),
-                $manifest_file->filepath() . Registry::FILE_NAME_BUILD_MANIFEST
-            );
-        }
-    }
-
-
-    /**
-     * Used to register a js/css manifest file with the registered_manifest_files property.
-     *
-     * @param string $namespace     Provided to associate the manifest file with a specific namespace.
-     * @param string $url_base      The url base for the manifest file location.
-     * @param string $manifest_file The absolute path to the manifest file.
-     * @throws InvalidArgumentException
-     * @throws InvalidFilePathException
-     * @since 4.9.59.p
-     */
-    public function registerManifestFile($namespace, $url_base, $manifest_file)
-    {
-        if (isset($this->manifest_data[ $namespace ])) {
-            if (! $this->debug()) {
-                return;
-            }
-            throw new InvalidArgumentException(
-                sprintf(
-                    esc_html__(
-                        'The namespace for this manifest file has already been registered, choose a namespace other than %s',
-                        'event_espresso'
-                    ),
-                    $namespace
-                )
-            );
-        }
-        if (filter_var($url_base, FILTER_VALIDATE_URL) === false) {
-            if (is_admin()) {
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            'The url given for %1$s assets is invalid.  The url provided was: "%2$s". This usually happens when another plugin or theme on a site is using the "%3$s" filter or has an invalid url set for the "%4$s" constant',
-                            'event_espresso'
-                        ),
-                        'Event Espresso',
-                        $url_base,
-                        'plugins_url',
-                        'WP_PLUGIN_URL'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-            return;
-        }
-        $this->manifest_data[ $namespace ] = $this->decodeManifestFile($manifest_file);
-        if (! isset($this->manifest_data[ $namespace ]['url_base'])) {
-            $this->manifest_data[ $namespace ]['url_base'] = trailingslashit($url_base);
-        }
-    }
-
-
-    /**
-     * Decodes json from the provided manifest file.
-     *
-     * @since 4.9.59.p
-     * @param string $manifest_file Path to manifest file.
-     * @return array
-     * @throws InvalidFilePathException
-     */
-    private function decodeManifestFile($manifest_file)
-    {
-        if (! file_exists($manifest_file)) {
-            throw new InvalidFilePathException($manifest_file);
-        }
-        return json_decode(file_get_contents($manifest_file), true);
-    }
-
-
-    /**
-     * This is used to set registered script handles that have data.
-     *
-     * @param string $script_handle
-     */
-    private function addRegisteredScriptHandlesWithData($script_handle)
-    {
-        $this->script_handles_with_data[ $script_handle ] = $script_handle;
-    }
-
-
-    /**i
+						'event_espresso'
+					),
+					$key
+				)
+			);
+		}
+		return true;
+	}
+
+
+	/**
+	 * Get the actual asset path for asset manifests.
+	 * If there is no asset path found for the given $chunk_name, then the $chunk_name is returned.
+	 *
+	 * @param string $namespace  The namespace associated with the manifest file hosting the map of chunk_name to actual
+	 *                           asset file location.
+	 * @param string $chunk_name
+	 * @param string $asset_type
+	 * @return string
+	 * @since 4.9.59.p
+	 */
+	public function getAssetUrl($namespace, $chunk_name, $asset_type)
+	{
+		$url = isset(
+			$this->manifest_data[ $namespace ][ $chunk_name . '.' . $asset_type ],
+			$this->manifest_data[ $namespace ]['url_base']
+		)
+			? $this->manifest_data[ $namespace ]['url_base']
+			  . $this->manifest_data[ $namespace ][ $chunk_name . '.' . $asset_type ]
+			: $chunk_name;
+		return apply_filters(
+			'FHEE__EventEspresso_core_services_assets_Registry__getAssetUrl',
+			$url,
+			$namespace,
+			$chunk_name,
+			$asset_type
+		);
+	}
+
+
+	/**
+	 * Return the url to a js file for the given namespace and chunk name.
+	 *
+	 * @param string $namespace
+	 * @param string $chunk_name
+	 * @return string
+	 */
+	public function getJsUrl($namespace, $chunk_name)
+	{
+		return $this->getAssetUrl($namespace, $chunk_name, Asset::TYPE_JS);
+	}
+
+
+	/**
+	 * Return the url to a css file for the given namespace and chunk name.
+	 *
+	 * @param string $namespace
+	 * @param string $chunk_name
+	 * @return string
+	 */
+	public function getCssUrl($namespace, $chunk_name)
+	{
+		return $this->getAssetUrl($namespace, $chunk_name, Asset::TYPE_CSS);
+	}
+
+
+	/**
+	 * @since 4.9.62.p
+	 * @throws InvalidArgumentException
+	 * @throws InvalidFilePathException
+	 */
+	public function registerManifestFiles()
+	{
+		$manifest_files = $this->assets->getManifestFiles();
+		foreach ($manifest_files as $manifest_file) {
+			$this->registerManifestFile(
+				$manifest_file->assetNamespace(),
+				$manifest_file->urlBase(),
+				$manifest_file->filepath() . Registry::FILE_NAME_BUILD_MANIFEST
+			);
+		}
+	}
+
+
+	/**
+	 * Used to register a js/css manifest file with the registered_manifest_files property.
+	 *
+	 * @param string $namespace     Provided to associate the manifest file with a specific namespace.
+	 * @param string $url_base      The url base for the manifest file location.
+	 * @param string $manifest_file The absolute path to the manifest file.
+	 * @throws InvalidArgumentException
+	 * @throws InvalidFilePathException
+	 * @since 4.9.59.p
+	 */
+	public function registerManifestFile($namespace, $url_base, $manifest_file)
+	{
+		if (isset($this->manifest_data[ $namespace ])) {
+			if (! $this->debug()) {
+				return;
+			}
+			throw new InvalidArgumentException(
+				sprintf(
+					esc_html__(
+						'The namespace for this manifest file has already been registered, choose a namespace other than %s',
+						'event_espresso'
+					),
+					$namespace
+				)
+			);
+		}
+		if (filter_var($url_base, FILTER_VALIDATE_URL) === false) {
+			if (is_admin()) {
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							'The url given for %1$s assets is invalid.  The url provided was: "%2$s". This usually happens when another plugin or theme on a site is using the "%3$s" filter or has an invalid url set for the "%4$s" constant',
+							'event_espresso'
+						),
+						'Event Espresso',
+						$url_base,
+						'plugins_url',
+						'WP_PLUGIN_URL'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+			return;
+		}
+		$this->manifest_data[ $namespace ] = $this->decodeManifestFile($manifest_file);
+		if (! isset($this->manifest_data[ $namespace ]['url_base'])) {
+			$this->manifest_data[ $namespace ]['url_base'] = trailingslashit($url_base);
+		}
+	}
+
+
+	/**
+	 * Decodes json from the provided manifest file.
+	 *
+	 * @since 4.9.59.p
+	 * @param string $manifest_file Path to manifest file.
+	 * @return array
+	 * @throws InvalidFilePathException
+	 */
+	private function decodeManifestFile($manifest_file)
+	{
+		if (! file_exists($manifest_file)) {
+			throw new InvalidFilePathException($manifest_file);
+		}
+		return json_decode(file_get_contents($manifest_file), true);
+	}
+
+
+	/**
+	 * This is used to set registered script handles that have data.
+	 *
+	 * @param string $script_handle
+	 */
+	private function addRegisteredScriptHandlesWithData($script_handle)
+	{
+		$this->script_handles_with_data[ $script_handle ] = $script_handle;
+	}
+
+
+	/**i
      * Checks WP_Scripts for all of each script handle registered internally as having data and unsets from the
      * Dependency stored in WP_Scripts if its set.
      */
-    private function removeAlreadyRegisteredDataForScriptHandles()
-    {
-        if (empty($this->script_handles_with_data)) {
-            return;
-        }
-        foreach ($this->script_handles_with_data as $script_handle) {
-            $this->removeAlreadyRegisteredDataForScriptHandle($script_handle);
-        }
-    }
-
-
-    /**
-     * Removes any data dependency registered in WP_Scripts if its set.
-     *
-     * @param string $script_handle
-     */
-    private function removeAlreadyRegisteredDataForScriptHandle($script_handle)
-    {
-        if (isset($this->script_handles_with_data[ $script_handle ])) {
-            global $wp_scripts;
-            $unset_handle = false;
-            if ($wp_scripts->get_data($script_handle, 'data')) {
-                unset($wp_scripts->registered[ $script_handle ]->extra['data']);
-                $unset_handle = true;
-            }
-            //deal with inline_scripts
-            if ($wp_scripts->get_data($script_handle, 'before')) {
-                unset($wp_scripts->registered[ $script_handle ]->extra['before']);
-                $unset_handle = true;
-            }
-            if ($wp_scripts->get_data($script_handle, 'after')) {
-                unset($wp_scripts->registered[ $script_handle ]->extra['after']);
-            }
-            if ($unset_handle) {
-                unset($this->script_handles_with_data[ $script_handle ]);
-            }
-        }
-    }
-
-
-    /**
-     * register translations for a registered script
-     *
-     * @param string $handle
-     */
-    public function registerTranslation($handle)
-    {
-        $this->i18n_registry->registerScriptI18n($handle);
-    }
-
-
-    /**
-     * @since $VID:$
-     * @return bool
-     */
-    private function debug()
-    {
-        return apply_filters(
-            'FHEE__EventEspresso_core_services_assets_Registry__debug',
-            defined('EE_DEBUG') && EE_DEBUG
-        );
-    }
+	private function removeAlreadyRegisteredDataForScriptHandles()
+	{
+		if (empty($this->script_handles_with_data)) {
+			return;
+		}
+		foreach ($this->script_handles_with_data as $script_handle) {
+			$this->removeAlreadyRegisteredDataForScriptHandle($script_handle);
+		}
+	}
+
+
+	/**
+	 * Removes any data dependency registered in WP_Scripts if its set.
+	 *
+	 * @param string $script_handle
+	 */
+	private function removeAlreadyRegisteredDataForScriptHandle($script_handle)
+	{
+		if (isset($this->script_handles_with_data[ $script_handle ])) {
+			global $wp_scripts;
+			$unset_handle = false;
+			if ($wp_scripts->get_data($script_handle, 'data')) {
+				unset($wp_scripts->registered[ $script_handle ]->extra['data']);
+				$unset_handle = true;
+			}
+			//deal with inline_scripts
+			if ($wp_scripts->get_data($script_handle, 'before')) {
+				unset($wp_scripts->registered[ $script_handle ]->extra['before']);
+				$unset_handle = true;
+			}
+			if ($wp_scripts->get_data($script_handle, 'after')) {
+				unset($wp_scripts->registered[ $script_handle ]->extra['after']);
+			}
+			if ($unset_handle) {
+				unset($this->script_handles_with_data[ $script_handle ]);
+			}
+		}
+	}
+
+
+	/**
+	 * register translations for a registered script
+	 *
+	 * @param string $handle
+	 */
+	public function registerTranslation($handle)
+	{
+		$this->i18n_registry->registerScriptI18n($handle);
+	}
+
+
+	/**
+	 * @since $VID:$
+	 * @return bool
+	 */
+	private function debug()
+	{
+		return apply_filters(
+			'FHEE__EventEspresso_core_services_assets_Registry__debug',
+			defined('EE_DEBUG') && EE_DEBUG
+		);
+	}
 }

Spacing +35 added lines, -35 removed lines

@@ -146,7 +146,7 @@ 
                 $script->version(),
                 $script->loadInFooter()
             );
-            if (! $registered && $this->debug()) {
+            if ( ! $registered && $this->debug()) {
                 throw new AssetRegistrationException($script->handle());
             }
             $script->setRegistered($registered);
@@ -206,7 +206,7 @@ 
         $this->removeAlreadyRegisteredDataForScriptHandles();
         wp_add_inline_script(
             'eejs-core',
-            'var eejsdata=' . wp_json_encode(array('data' => $this->jsdata)),
+            'var eejsdata='.wp_json_encode(array('data' => $this->jsdata)),
             'before'
         );
         $scripts = $this->assets->getJavascriptAssetsWithData();
@@ -236,7 +236,7 @@ 
     public function addData($key, $value)
     {
         if ($this->verifyDataNotExisting($key)) {
-            $this->jsdata[ $key ] = $value;
+            $this->jsdata[$key] = $value;
         }
     }
 
@@ -257,10 +257,10 @@ 
      */
     public function pushData($key, $value)
     {
-        if (isset($this->jsdata[ $key ])
-            && ! is_array($this->jsdata[ $key ])
+        if (isset($this->jsdata[$key])
+            && ! is_array($this->jsdata[$key])
         ) {
-            if (! $this->debug()) {
+            if ( ! $this->debug()) {
                 return;
             }
             throw new InvalidArgumentException(
@@ -275,7 +275,7 @@ 
                 )
             );
         }
-        $this->jsdata[ $key ][] = $value;
+        $this->jsdata[$key][] = $value;
     }
 
 
@@ -289,12 +289,12 @@ 
      */
     public function addTemplate($template_reference, $template_content)
     {
-        if (! isset($this->jsdata['templates'])) {
+        if ( ! isset($this->jsdata['templates'])) {
             $this->jsdata['templates'] = array();
         }
         //no overrides allowed.
-        if (isset($this->jsdata['templates'][ $template_reference ])) {
-            if (! $this->debug()) {
+        if (isset($this->jsdata['templates'][$template_reference])) {
+            if ( ! $this->debug()) {
                 return;
             }
             throw new InvalidArgumentException(
@@ -307,7 +307,7 @@ 
                 )
             );
         }
-        $this->jsdata['templates'][ $template_reference ] = $template_content;
+        $this->jsdata['templates'][$template_reference] = $template_content;
     }
 
 
@@ -319,8 +319,8 @@ 
      */
     public function getTemplate($template_reference)
     {
-        return isset($this->jsdata['templates'][ $template_reference ])
-            ? $this->jsdata['templates'][ $template_reference ]
+        return isset($this->jsdata['templates'][$template_reference])
+            ? $this->jsdata['templates'][$template_reference]
             : '';
     }
 
@@ -333,8 +333,8 @@ 
      */
     public function getData($key)
     {
-        return isset($this->jsdata[ $key ])
-            ? $this->jsdata[ $key ]
+        return isset($this->jsdata[$key])
+            ? $this->jsdata[$key]
             : false;
     }
 
@@ -349,11 +349,11 @@ 
      */
     protected function verifyDataNotExisting($key)
     {
-        if (isset($this->jsdata[ $key ])) {
-            if (! $this->debug()) {
+        if (isset($this->jsdata[$key])) {
+            if ( ! $this->debug()) {
                 return false;
             }
-            if (is_array($this->jsdata[ $key ])) {
+            if (is_array($this->jsdata[$key])) {
                 throw new InvalidArgumentException(
                     sprintf(
                         __(
@@ -396,11 +396,11 @@ 
     public function getAssetUrl($namespace, $chunk_name, $asset_type)
     {
         $url = isset(
-            $this->manifest_data[ $namespace ][ $chunk_name . '.' . $asset_type ],
-            $this->manifest_data[ $namespace ]['url_base']
+            $this->manifest_data[$namespace][$chunk_name.'.'.$asset_type],
+            $this->manifest_data[$namespace]['url_base']
         )
-            ? $this->manifest_data[ $namespace ]['url_base']
-              . $this->manifest_data[ $namespace ][ $chunk_name . '.' . $asset_type ]
+            ? $this->manifest_data[$namespace]['url_base']
+              . $this->manifest_data[$namespace][$chunk_name.'.'.$asset_type]
             : $chunk_name;
         return apply_filters(
             'FHEE__EventEspresso_core_services_assets_Registry__getAssetUrl',
@@ -450,7 +450,7 @@ 
             $this->registerManifestFile(
                 $manifest_file->assetNamespace(),
                 $manifest_file->urlBase(),
-                $manifest_file->filepath() . Registry::FILE_NAME_BUILD_MANIFEST
+                $manifest_file->filepath().Registry::FILE_NAME_BUILD_MANIFEST
             );
         }
     }
@@ -468,8 +468,8 @@ 
      */
     public function registerManifestFile($namespace, $url_base, $manifest_file)
     {
-        if (isset($this->manifest_data[ $namespace ])) {
-            if (! $this->debug()) {
+        if (isset($this->manifest_data[$namespace])) {
+            if ( ! $this->debug()) {
                 return;
             }
             throw new InvalidArgumentException(
@@ -502,9 +502,9 @@ 
             }
             return;
         }
-        $this->manifest_data[ $namespace ] = $this->decodeManifestFile($manifest_file);
-        if (! isset($this->manifest_data[ $namespace ]['url_base'])) {
-            $this->manifest_data[ $namespace ]['url_base'] = trailingslashit($url_base);
+        $this->manifest_data[$namespace] = $this->decodeManifestFile($manifest_file);
+        if ( ! isset($this->manifest_data[$namespace]['url_base'])) {
+            $this->manifest_data[$namespace]['url_base'] = trailingslashit($url_base);
         }
     }
 
@@ -519,7 +519,7 @@ 
      */
     private function decodeManifestFile($manifest_file)
     {
-        if (! file_exists($manifest_file)) {
+        if ( ! file_exists($manifest_file)) {
             throw new InvalidFilePathException($manifest_file);
         }
         return json_decode(file_get_contents($manifest_file), true);
@@ -533,7 +533,7 @@ 
      */
     private function addRegisteredScriptHandlesWithData($script_handle)
     {
-        $this->script_handles_with_data[ $script_handle ] = $script_handle;
+        $this->script_handles_with_data[$script_handle] = $script_handle;
     }
 
 
@@ -559,23 +559,23 @@ 
      */
     private function removeAlreadyRegisteredDataForScriptHandle($script_handle)
     {
-        if (isset($this->script_handles_with_data[ $script_handle ])) {
+        if (isset($this->script_handles_with_data[$script_handle])) {
             global $wp_scripts;
             $unset_handle = false;
             if ($wp_scripts->get_data($script_handle, 'data')) {
-                unset($wp_scripts->registered[ $script_handle ]->extra['data']);
+                unset($wp_scripts->registered[$script_handle]->extra['data']);
                 $unset_handle = true;
             }
             //deal with inline_scripts
             if ($wp_scripts->get_data($script_handle, 'before')) {
-                unset($wp_scripts->registered[ $script_handle ]->extra['before']);
+                unset($wp_scripts->registered[$script_handle]->extra['before']);
                 $unset_handle = true;
             }
             if ($wp_scripts->get_data($script_handle, 'after')) {
-                unset($wp_scripts->registered[ $script_handle ]->extra['after']);
+                unset($wp_scripts->registered[$script_handle]->extra['after']);
             }
             if ($unset_handle) {
-                unset($this->script_handles_with_data[ $script_handle ]);
+                unset($this->script_handles_with_data[$script_handle]);
             }
         }
     }

core/EE_Config.core.php

Indentation +3135 added lines, -3135 removed lines

@@ -14,2524 +14,2524 @@ 
 final class EE_Config implements ResettableInterface
 {
 
-    const OPTION_NAME = 'ee_config';
-
-    const LOG_NAME = 'ee_config_log';
-
-    const LOG_LENGTH = 100;
-
-    const ADDON_OPTION_NAMES = 'ee_config_option_names';
-
-    /**
-     *    instance of the EE_Config object
-     *
-     * @var    EE_Config $_instance
-     * @access    private
-     */
-    private static $_instance;
-
-    /**
-     * @var boolean $_logging_enabled
-     */
-    private static $_logging_enabled = false;
-
-    /**
-     * @var LegacyShortcodesManager $legacy_shortcodes_manager
-     */
-    private $legacy_shortcodes_manager;
-
-    /**
-     * An StdClass whose property names are addon slugs,
-     * and values are their config classes
-     *
-     * @var StdClass
-     */
-    public $addons;
-
-    /**
-     * @var EE_Admin_Config
-     */
-    public $admin;
-
-    /**
-     * @var EE_Core_Config
-     */
-    public $core;
-
-    /**
-     * @var EE_Currency_Config
-     */
-    public $currency;
-
-    /**
-     * @var EE_Organization_Config
-     */
-    public $organization;
-
-    /**
-     * @var EE_Registration_Config
-     */
-    public $registration;
-
-    /**
-     * @var EE_Template_Config
-     */
-    public $template_settings;
-
-    /**
-     * Holds EE environment values.
-     *
-     * @var EE_Environment_Config
-     */
-    public $environment;
-
-    /**
-     * settings pertaining to Google maps
-     *
-     * @var EE_Map_Config
-     */
-    public $map_settings;
-
-    /**
-     * settings pertaining to Taxes
-     *
-     * @var EE_Tax_Config
-     */
-    public $tax_settings;
-
-    /**
-     * Settings pertaining to global messages settings.
-     *
-     * @var EE_Messages_Config
-     */
-    public $messages;
-
-    /**
-     * @deprecated
-     * @var EE_Gateway_Config
-     */
-    public $gateway;
-
-    /**
-     * @var    array $_addon_option_names
-     * @access    private
-     */
-    private $_addon_option_names = array();
-
-    /**
-     * @var    array $_module_route_map
-     * @access    private
-     */
-    private static $_module_route_map = array();
-
-    /**
-     * @var    array $_module_forward_map
-     * @access    private
-     */
-    private static $_module_forward_map = array();
-
-    /**
-     * @var    array $_module_view_map
-     * @access    private
-     */
-    private static $_module_view_map = array();
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @access    public
-     * @return EE_Config instance
-     */
-    public static function instance()
-    {
-        // check if class object is instantiated, and instantiated properly
-        if (! self::$_instance instanceof EE_Config) {
-            self::$_instance = new self();
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * Resets the config
-     *
-     * @param bool    $hard_reset    if TRUE, sets EE_CONFig back to its original settings in the database. If FALSE
-     *                               (default) leaves the database alone, and merely resets the EE_Config object to
-     *                               reflect its state in the database
-     * @param boolean $reinstantiate if TRUE (default) call instance() and return it. Otherwise, just leave
-     *                               $_instance as NULL. Useful in case you want to forget about the old instance on
-     *                               EE_Config, but might not be ready to instantiate EE_Config currently (eg if the
-     *                               site was put into maintenance mode)
-     * @return EE_Config
-     */
-    public static function reset($hard_reset = false, $reinstantiate = true)
-    {
-        if (self::$_instance instanceof EE_Config) {
-            if ($hard_reset) {
-                self::$_instance->legacy_shortcodes_manager = null;
-                self::$_instance->_addon_option_names = array();
-                self::$_instance->_initialize_config();
-                self::$_instance->update_espresso_config();
-            }
-            self::$_instance->update_addon_option_names();
-        }
-        self::$_instance = null;
-        // we don't need to reset the static properties imo because those should
-        // only change when a module is added or removed. Currently we don't
-        // support removing a module during a request when it previously existed
-        if ($reinstantiate) {
-            return self::instance();
-        } else {
-            return null;
-        }
-    }
-
-
-    /**
-     *    class constructor
-     *
-     * @access    private
-     */
-    private function __construct()
-    {
-        do_action('AHEE__EE_Config__construct__begin', $this);
-        EE_Config::$_logging_enabled = apply_filters('FHEE__EE_Config___construct__logging_enabled', false);
-        // setup empty config classes
-        $this->_initialize_config();
-        // load existing EE site settings
-        $this->_load_core_config();
-        // confirm everything loaded correctly and set filtered defaults if not
-        $this->_verify_config();
-        //  register shortcodes and modules
-        add_action(
-            'AHEE__EE_System__register_shortcodes_modules_and_widgets',
-            array($this, 'register_shortcodes_and_modules'),
-            999
-        );
-        //  initialize shortcodes and modules
-        add_action('AHEE__EE_System__core_loaded_and_ready', array($this, 'initialize_shortcodes_and_modules'));
-        // register widgets
-        add_action('widgets_init', array($this, 'widgets_init'), 10);
-        // shutdown
-        add_action('shutdown', array($this, 'shutdown'), 10);
-        // construct__end hook
-        do_action('AHEE__EE_Config__construct__end', $this);
-        // hardcoded hack
-        $this->template_settings->current_espresso_theme = 'Espresso_Arabica_2014';
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public static function logging_enabled()
-    {
-        return self::$_logging_enabled;
-    }
-
-
-    /**
-     * use to get the current theme if needed from static context
-     *
-     * @return string current theme set.
-     */
-    public static function get_current_theme()
-    {
-        return isset(self::$_instance->template_settings->current_espresso_theme)
-            ? self::$_instance->template_settings->current_espresso_theme : 'Espresso_Arabica_2014';
-    }
-
-
-    /**
-     *        _initialize_config
-     *
-     * @access private
-     * @return void
-     */
-    private function _initialize_config()
-    {
-        EE_Config::trim_log();
-        // set defaults
-        $this->_addon_option_names = get_option(EE_Config::ADDON_OPTION_NAMES, array());
-        $this->addons = new stdClass();
-        // set _module_route_map
-        EE_Config::$_module_route_map = array();
-        // set _module_forward_map
-        EE_Config::$_module_forward_map = array();
-        // set _module_view_map
-        EE_Config::$_module_view_map = array();
-    }
-
-
-    /**
-     *        load core plugin configuration
-     *
-     * @access private
-     * @return void
-     */
-    private function _load_core_config()
-    {
-        // load_core_config__start hook
-        do_action('AHEE__EE_Config___load_core_config__start', $this);
-        $espresso_config = $this->get_espresso_config();
-        foreach ($espresso_config as $config => $settings) {
-            // load_core_config__start hook
-            $settings = apply_filters(
-                'FHEE__EE_Config___load_core_config__config_settings',
-                $settings,
-                $config,
-                $this
-            );
-            if (is_object($settings) && property_exists($this, $config)) {
-                $this->{$config} = apply_filters('FHEE__EE_Config___load_core_config__' . $config, $settings);
-                // call configs populate method to ensure any defaults are set for empty values.
-                if (method_exists($settings, 'populate')) {
-                    $this->{$config}->populate();
-                }
-                if (method_exists($settings, 'do_hooks')) {
-                    $this->{$config}->do_hooks();
-                }
-            }
-        }
-        if (apply_filters('FHEE__EE_Config___load_core_config__update_espresso_config', false)) {
-            $this->update_espresso_config();
-        }
-        // load_core_config__end hook
-        do_action('AHEE__EE_Config___load_core_config__end', $this);
-    }
-
-
-    /**
-     *    _verify_config
-     *
-     * @access    protected
-     * @return    void
-     */
-    protected function _verify_config()
-    {
-        $this->core = $this->core instanceof EE_Core_Config
-            ? $this->core
-            : new EE_Core_Config();
-        $this->core = apply_filters('FHEE__EE_Config___initialize_config__core', $this->core);
-        $this->organization = $this->organization instanceof EE_Organization_Config
-            ? $this->organization
-            : new EE_Organization_Config();
-        $this->organization = apply_filters(
-            'FHEE__EE_Config___initialize_config__organization',
-            $this->organization
-        );
-        $this->currency = $this->currency instanceof EE_Currency_Config
-            ? $this->currency
-            : new EE_Currency_Config();
-        $this->currency = apply_filters('FHEE__EE_Config___initialize_config__currency', $this->currency);
-        $this->registration = $this->registration instanceof EE_Registration_Config
-            ? $this->registration
-            : new EE_Registration_Config();
-        $this->registration = apply_filters(
-            'FHEE__EE_Config___initialize_config__registration',
-            $this->registration
-        );
-        $this->admin = $this->admin instanceof EE_Admin_Config
-            ? $this->admin
-            : new EE_Admin_Config();
-        $this->admin = apply_filters('FHEE__EE_Config___initialize_config__admin', $this->admin);
-        $this->template_settings = $this->template_settings instanceof EE_Template_Config
-            ? $this->template_settings
-            : new EE_Template_Config();
-        $this->template_settings = apply_filters(
-            'FHEE__EE_Config___initialize_config__template_settings',
-            $this->template_settings
-        );
-        $this->map_settings = $this->map_settings instanceof EE_Map_Config
-            ? $this->map_settings
-            : new EE_Map_Config();
-        $this->map_settings = apply_filters(
-            'FHEE__EE_Config___initialize_config__map_settings',
-            $this->map_settings
-        );
-        $this->environment = $this->environment instanceof EE_Environment_Config
-            ? $this->environment
-            : new EE_Environment_Config();
-        $this->environment = apply_filters(
-            'FHEE__EE_Config___initialize_config__environment',
-            $this->environment
-        );
-        $this->tax_settings = $this->tax_settings instanceof EE_Tax_Config
-            ? $this->tax_settings
-            : new EE_Tax_Config();
-        $this->tax_settings = apply_filters(
-            'FHEE__EE_Config___initialize_config__tax_settings',
-            $this->tax_settings
-        );
-        $this->messages = apply_filters('FHEE__EE_Config__initialize_config__messages', $this->messages);
-        $this->messages = $this->messages instanceof EE_Messages_Config
-            ? $this->messages
-            : new EE_Messages_Config();
-        $this->gateway = $this->gateway instanceof EE_Gateway_Config
-            ? $this->gateway
-            : new EE_Gateway_Config();
-        $this->gateway = apply_filters('FHEE__EE_Config___initialize_config__gateway', $this->gateway);
-        $this->legacy_shortcodes_manager = null;
-    }
-
-
-    /**
-     *    get_espresso_config
-     *
-     * @access    public
-     * @return    array of espresso config stuff
-     */
-    public function get_espresso_config()
-    {
-        // grab espresso configuration
-        return apply_filters(
-            'FHEE__EE_Config__get_espresso_config__CFG',
-            get_option(EE_Config::OPTION_NAME, array())
-        );
-    }
-
-
-    /**
-     *    double_check_config_comparison
-     *
-     * @access    public
-     * @param string $option
-     * @param        $old_value
-     * @param        $value
-     */
-    public function double_check_config_comparison($option = '', $old_value, $value)
-    {
-        // make sure we're checking the ee config
-        if ($option === EE_Config::OPTION_NAME) {
-            // run a loose comparison of the old value against the new value for type and properties,
-            // but NOT exact instance like WP update_option does (ie: NOT type safe comparison)
-            if ($value != $old_value) {
-                // if they are NOT the same, then remove the hook,
-                // which means the subsequent update results will be based solely on the update query results
-                // the reason we do this is because, as stated above,
-                // WP update_option performs an exact instance comparison (===) on any update values passed to it
-                // this happens PRIOR to serialization and any subsequent update.
-                // If values are found to match their previous old value,
-                // then WP bails before performing any update.
-                // Since we are passing the EE_Config object, it is comparing the EXACT instance of the saved version
-                // it just pulled from the db, with the one being passed to it (which will not match).
-                // HOWEVER, once the object is serialized and passed off to MySQL to update,
-                // MySQL MAY ALSO NOT perform the update because
-                // the string it sees in the db looks the same as the new one it has been passed!!!
-                // This results in the query returning an "affected rows" value of ZERO,
-                // which gets returned immediately by WP update_option and looks like an error.
-                remove_action('update_option', array($this, 'check_config_updated'));
-            }
-        }
-    }
-
-
-    /**
-     *    update_espresso_config
-     *
-     * @access   public
-     */
-    protected function _reset_espresso_addon_config()
-    {
-        $this->_addon_option_names = array();
-        foreach ($this->addons as $addon_name => $addon_config_obj) {
-            $addon_config_obj = maybe_unserialize($addon_config_obj);
-            if ($addon_config_obj instanceof EE_Config_Base) {
-                $this->update_config('addons', $addon_name, $addon_config_obj, false);
-            }
-            $this->addons->{$addon_name} = null;
-        }
-    }
-
-
-    /**
-     *    update_espresso_config
-     *
-     * @access   public
-     * @param   bool $add_success
-     * @param   bool $add_error
-     * @return   bool
-     */
-    public function update_espresso_config($add_success = false, $add_error = true)
-    {
-        // don't allow config updates during WP heartbeats
-        if (\EE_Registry::instance()->REQ->get('action', '') === 'heartbeat') {
-            return false;
-        }
-        // commented out the following re: https://events.codebasehq.com/projects/event-espresso/tickets/8197
-        // $clone = clone( self::$_instance );
-        // self::$_instance = NULL;
-        do_action('AHEE__EE_Config__update_espresso_config__begin', $this);
-        $this->_reset_espresso_addon_config();
-        // hook into update_option because that happens AFTER the ( $value === $old_value ) conditional
-        // but BEFORE the actual update occurs
-        add_action('update_option', array($this, 'double_check_config_comparison'), 1, 3);
-        // don't want to persist legacy_shortcodes_manager, but don't want to lose it either
-        $legacy_shortcodes_manager = $this->legacy_shortcodes_manager;
-        $this->legacy_shortcodes_manager = null;
-        // now update "ee_config"
-        $saved = update_option(EE_Config::OPTION_NAME, $this);
-        $this->legacy_shortcodes_manager = $legacy_shortcodes_manager;
-        EE_Config::log(EE_Config::OPTION_NAME);
-        // if not saved... check if the hook we just added still exists;
-        // if it does, it means one of two things:
-        // that update_option bailed at the($value === $old_value) conditional,
-        // or...
-        // the db update query returned 0 rows affected
-        // (probably because the data  value was the same from it's perspective)
-        // so the existence of the hook means that a negative result from update_option is NOT an error,
-        // but just means no update occurred, so don't display an error to the user.
-        // BUT... if update_option returns FALSE, AND the hook is missing,
-        // then it means that something truly went wrong
-        $saved = ! $saved ? has_action('update_option', array($this, 'double_check_config_comparison')) : $saved;
-        // remove our action since we don't want it in the system anymore
-        remove_action('update_option', array($this, 'double_check_config_comparison'), 1);
-        do_action('AHEE__EE_Config__update_espresso_config__end', $this, $saved);
-        // self::$_instance = $clone;
-        // unset( $clone );
-        // if config remains the same or was updated successfully
-        if ($saved) {
-            if ($add_success) {
-                EE_Error::add_success(
-                    __('The Event Espresso Configuration Settings have been successfully updated.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-            return true;
-        } else {
-            if ($add_error) {
-                EE_Error::add_error(
-                    __('The Event Espresso Configuration Settings were not updated.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-            return false;
-        }
-    }
-
-
-    /**
-     *    _verify_config_params
-     *
-     * @access    private
-     * @param    string         $section
-     * @param    string         $name
-     * @param    string         $config_class
-     * @param    EE_Config_Base $config_obj
-     * @param    array          $tests_to_run
-     * @param    bool           $display_errors
-     * @return    bool    TRUE on success, FALSE on fail
-     */
-    private function _verify_config_params(
-        $section = '',
-        $name = '',
-        $config_class = '',
-        $config_obj = null,
-        $tests_to_run = array(1, 2, 3, 4, 5, 6, 7, 8),
-        $display_errors = true
-    ) {
-        try {
-            foreach ($tests_to_run as $test) {
-                switch ($test) {
-                    // TEST #1 : check that section was set
-                    case 1:
-                        if (empty($section)) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __(
-                                            'No configuration section has been provided while attempting to save "%s".',
-                                            'event_espresso'
-                                        ),
-                                        $config_class
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #2 : check that settings section exists
-                    case 2:
-                        if (! isset($this->{$section})) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __('The "%s" configuration section does not exist.', 'event_espresso'),
-                                        $section
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #3 : check that section is the proper format
-                    case 3:
-                        if (! ($this->{$section} instanceof EE_Config_Base || $this->{$section} instanceof stdClass)
-                        ) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __(
-                                            'The "%s" configuration settings have not been formatted correctly.',
-                                            'event_espresso'
-                                        ),
-                                        $section
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #4 : check that config section name has been set
-                    case 4:
-                        if (empty($name)) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    __(
-                                        'No name has been provided for the specific configuration section.',
-                                        'event_espresso'
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #5 : check that a config class name has been set
-                    case 5:
-                        if (empty($config_class)) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    __(
-                                        'No class name has been provided for the specific configuration section.',
-                                        'event_espresso'
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #6 : verify config class is accessible
-                    case 6:
-                        if (! class_exists($config_class)) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __(
-                                            'The "%s" class does not exist. Please ensure that an autoloader has been set for it.',
-                                            'event_espresso'
-                                        ),
-                                        $config_class
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #7 : check that config has even been set
-                    case 7:
-                        if (! isset($this->{$section}->{$name})) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __('No configuration has been set for "%1$s->%2$s".', 'event_espresso'),
-                                        $section,
-                                        $name
-                                    )
-                                );
-                            }
-                            return false;
-                        } else {
-                            // and make sure it's not serialized
-                            $this->{$section}->{$name} = maybe_unserialize($this->{$section}->{$name});
-                        }
-                        break;
-                    // TEST #8 : check that config is the requested type
-                    case 8:
-                        if (! $this->{$section}->{$name} instanceof $config_class) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __(
-                                            'The configuration for "%1$s->%2$s" is not of the "%3$s" class.',
-                                            'event_espresso'
-                                        ),
-                                        $section,
-                                        $name,
-                                        $config_class
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                    // TEST #9 : verify config object
-                    case 9:
-                        if (! $config_obj instanceof EE_Config_Base) {
-                            if ($display_errors) {
-                                throw new EE_Error(
-                                    sprintf(
-                                        __('The "%s" class is not an instance of EE_Config_Base.', 'event_espresso'),
-                                        print_r($config_obj, true)
-                                    )
-                                );
-                            }
-                            return false;
-                        }
-                        break;
-                }
-            }
-        } catch (EE_Error $e) {
-            $e->get_error();
-        }
-        // you have successfully run the gauntlet
-        return true;
-    }
-
-
-    /**
-     *    _generate_config_option_name
-     *
-     * @access        protected
-     * @param        string $section
-     * @param        string $name
-     * @return        string
-     */
-    private function _generate_config_option_name($section = '', $name = '')
-    {
-        return 'ee_config-' . strtolower($section . '-' . str_replace(array('EE_', 'EED_'), '', $name));
-    }
-
-
-    /**
-     *    _set_config_class
-     * ensures that a config class is set, either from a passed config class or one generated from the config name
-     *
-     * @access    private
-     * @param    string $config_class
-     * @param    string $name
-     * @return    string
-     */
-    private function _set_config_class($config_class = '', $name = '')
-    {
-        return ! empty($config_class)
-            ? $config_class
-            : str_replace(' ', '_', ucwords(str_replace('_', ' ', $name))) . '_Config';
-    }
-
-
-    /**
-     *    set_config
-     *
-     * @access    protected
-     * @param    string         $section
-     * @param    string         $name
-     * @param    string         $config_class
-     * @param    EE_Config_Base $config_obj
-     * @return    EE_Config_Base
-     */
-    public function set_config($section = '', $name = '', $config_class = '', EE_Config_Base $config_obj = null)
-    {
-        // ensure config class is set to something
-        $config_class = $this->_set_config_class($config_class, $name);
-        // run tests 1-4, 6, and 7 to verify all config params are set and valid
-        if (! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
-            return null;
-        }
-        $config_option_name = $this->_generate_config_option_name($section, $name);
-        // if the config option name hasn't been added yet to the list of option names we're tracking, then do so now
-        if (! isset($this->_addon_option_names[ $config_option_name ])) {
-            $this->_addon_option_names[ $config_option_name ] = $config_class;
-            $this->update_addon_option_names();
-        }
-        // verify the incoming config object but suppress errors
-        if (! $this->_verify_config_params($section, $name, $config_class, $config_obj, array(9), false)) {
-            $config_obj = new $config_class();
-        }
-        if (get_option($config_option_name)) {
-            EE_Config::log($config_option_name);
-            update_option($config_option_name, $config_obj);
-            $this->{$section}->{$name} = $config_obj;
-            return $this->{$section}->{$name};
-        } else {
-            // create a wp-option for this config
-            if (add_option($config_option_name, $config_obj, '', 'no')) {
-                $this->{$section}->{$name} = maybe_unserialize($config_obj);
-                return $this->{$section}->{$name};
-            } else {
-                EE_Error::add_error(
-                    sprintf(__('The "%s" could not be saved to the database.', 'event_espresso'), $config_class),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return null;
-            }
-        }
-    }
-
-
-    /**
-     *    update_config
-     * Important: the config object must ALREADY be set, otherwise this will produce an error.
-     *
-     * @access    public
-     * @param    string                $section
-     * @param    string                $name
-     * @param    EE_Config_Base|string $config_obj
-     * @param    bool                  $throw_errors
-     * @return    bool
-     */
-    public function update_config($section = '', $name = '', $config_obj = '', $throw_errors = true)
-    {
-        // don't allow config updates during WP heartbeats
-        if (\EE_Registry::instance()->REQ->get('action', '') === 'heartbeat') {
-            return false;
-        }
-        $config_obj = maybe_unserialize($config_obj);
-        // get class name of the incoming object
-        $config_class = get_class($config_obj);
-        // run tests 1-5 and 9 to verify config
-        if (! $this->_verify_config_params(
-            $section,
-            $name,
-            $config_class,
-            $config_obj,
-            array(1, 2, 3, 4, 7, 9)
-        )
-        ) {
-            return false;
-        }
-        $config_option_name = $this->_generate_config_option_name($section, $name);
-        // check if config object has been added to db by seeing if config option name is in $this->_addon_option_names array
-        if (! isset($this->_addon_option_names[ $config_option_name ])) {
-            // save new config to db
-            if ($this->set_config($section, $name, $config_class, $config_obj)) {
-                return true;
-            }
-        } else {
-            // first check if the record already exists
-            $existing_config = get_option($config_option_name);
-            $config_obj = serialize($config_obj);
-            // just return if db record is already up to date (NOT type safe comparison)
-            if ($existing_config == $config_obj) {
-                $this->{$section}->{$name} = $config_obj;
-                return true;
-            } elseif (update_option($config_option_name, $config_obj)) {
-                EE_Config::log($config_option_name);
-                // update wp-option for this config class
-                $this->{$section}->{$name} = $config_obj;
-                return true;
-            } elseif ($throw_errors) {
-                EE_Error::add_error(
-                    sprintf(
-                        __(
-                            'The "%1$s" object stored at"%2$s" was not successfully updated in the database.',
-                            'event_espresso'
-                        ),
-                        $config_class,
-                        'EE_Config->' . $section . '->' . $name
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        }
-        return false;
-    }
-
-
-    /**
-     *    get_config
-     *
-     * @access    public
-     * @param    string $section
-     * @param    string $name
-     * @param    string $config_class
-     * @return    mixed EE_Config_Base | NULL
-     */
-    public function get_config($section = '', $name = '', $config_class = '')
-    {
-        // ensure config class is set to something
-        $config_class = $this->_set_config_class($config_class, $name);
-        // run tests 1-4, 6 and 7 to verify that all params have been set
-        if (! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
-            return null;
-        }
-        // now test if the requested config object exists, but suppress errors
-        if ($this->_verify_config_params($section, $name, $config_class, null, array(7, 8), false)) {
-            // config already exists, so pass it back
-            return $this->{$section}->{$name};
-        }
-        // load config option from db if it exists
-        $config_obj = $this->get_config_option($this->_generate_config_option_name($section, $name));
-        // verify the newly retrieved config object, but suppress errors
-        if ($this->_verify_config_params($section, $name, $config_class, $config_obj, array(9), false)) {
-            // config is good, so set it and pass it back
-            $this->{$section}->{$name} = $config_obj;
-            return $this->{$section}->{$name};
-        }
-        // oops! $config_obj is not already set and does not exist in the db, so create a new one
-        $config_obj = $this->set_config($section, $name, $config_class);
-        // verify the newly created config object
-        if ($this->_verify_config_params($section, $name, $config_class, $config_obj, array(9))) {
-            return $this->{$section}->{$name};
-        } else {
-            EE_Error::add_error(
-                sprintf(__('The "%s" could not be retrieved from the database.', 'event_espresso'), $config_class),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        return null;
-    }
-
-
-    /**
-     *    get_config_option
-     *
-     * @access    public
-     * @param    string $config_option_name
-     * @return    mixed EE_Config_Base | FALSE
-     */
-    public function get_config_option($config_option_name = '')
-    {
-        // retrieve the wp-option for this config class.
-        $config_option = maybe_unserialize(get_option($config_option_name, array()));
-        if (empty($config_option)) {
-            EE_Config::log($config_option_name . '-NOT-FOUND');
-        }
-        return $config_option;
-    }
-
-
-    /**
-     * log
-     *
-     * @param string $config_option_name
-     */
-    public static function log($config_option_name = '')
-    {
-        if (EE_Config::logging_enabled() && ! empty($config_option_name)) {
-            $config_log = get_option(EE_Config::LOG_NAME, array());
-            // copy incoming $_REQUEST and sanitize it so we can save it
-            $_request = $_REQUEST;
-            array_walk_recursive($_request, 'sanitize_text_field');
-            $config_log[ (string) microtime(true) ] = array(
-                'config_name' => $config_option_name,
-                'request'     => $_request,
-            );
-            update_option(EE_Config::LOG_NAME, $config_log);
-        }
-    }
-
-
-    /**
-     * trim_log
-     * reduces the size of the config log to the length specified by EE_Config::LOG_LENGTH
-     */
-    public static function trim_log()
-    {
-        if (! EE_Config::logging_enabled()) {
-            return;
-        }
-        $config_log = maybe_unserialize(get_option(EE_Config::LOG_NAME, array()));
-        $log_length = count($config_log);
-        if ($log_length > EE_Config::LOG_LENGTH) {
-            ksort($config_log);
-            $config_log = array_slice($config_log, $log_length - EE_Config::LOG_LENGTH, null, true);
-            update_option(EE_Config::LOG_NAME, $config_log);
-        }
-    }
-
-
-    /**
-     *    get_page_for_posts
-     *    if the wp-option "show_on_front" is set to "page", then this is the post_name for the post set in the
-     *    wp-option "page_for_posts", or "posts" if no page is selected
-     *
-     * @access    public
-     * @return    string
-     */
-    public static function get_page_for_posts()
-    {
-        $page_for_posts = get_option('page_for_posts');
-        if (! $page_for_posts) {
-            return 'posts';
-        }
-        /** @type WPDB $wpdb */
-        global $wpdb;
-        $SQL = "SELECT post_name from $wpdb->posts WHERE post_type='posts' OR post_type='page' AND post_status='publish' AND ID=%d";
-        return $wpdb->get_var($wpdb->prepare($SQL, $page_for_posts));
-    }
-
-
-    /**
-     *    register_shortcodes_and_modules.
-     *    At this point, it's too early to tell if we're maintenance mode or not.
-     *    In fact, this is where we give modules a chance to let core know they exist
-     *    so they can help trigger maintenance mode if it's needed
-     *
-     * @access    public
-     * @return    void
-     */
-    public function register_shortcodes_and_modules()
-    {
-        // allow modules to set hooks for the rest of the system
-        EE_Registry::instance()->modules = $this->_register_modules();
-    }
-
-
-    /**
-     *    initialize_shortcodes_and_modules
-     *    meaning they can start adding their hooks to get stuff done
-     *
-     * @access    public
-     * @return    void
-     */
-    public function initialize_shortcodes_and_modules()
-    {
-        // allow modules to set hooks for the rest of the system
-        $this->_initialize_modules();
-    }
-
-
-    /**
-     *    widgets_init
-     *
-     * @access private
-     * @return void
-     */
-    public function widgets_init()
-    {
-        // only init widgets on admin pages when not in complete maintenance, and
-        // on frontend when not in any maintenance mode
-        if (! EE_Maintenance_Mode::instance()->level()
-            || (
-                is_admin()
-                && EE_Maintenance_Mode::instance()->level() !== EE_Maintenance_Mode::level_2_complete_maintenance
-            )
-        ) {
-            // grab list of installed widgets
-            $widgets_to_register = glob(EE_WIDGETS . '*', GLOB_ONLYDIR);
-            // filter list of modules to register
-            $widgets_to_register = apply_filters(
-                'FHEE__EE_Config__register_widgets__widgets_to_register',
-                $widgets_to_register
-            );
-            if (! empty($widgets_to_register)) {
-                // cycle thru widget folders
-                foreach ($widgets_to_register as $widget_path) {
-                    // add to list of installed widget modules
-                    EE_Config::register_ee_widget($widget_path);
-                }
-            }
-            // filter list of installed modules
-            EE_Registry::instance()->widgets = apply_filters(
-                'FHEE__EE_Config__register_widgets__installed_widgets',
-                EE_Registry::instance()->widgets
-            );
-        }
-    }
-
-
-    /**
-     *    register_ee_widget - makes core aware of this widget
-     *
-     * @access    public
-     * @param    string $widget_path - full path up to and including widget folder
-     * @return    void
-     */
-    public static function register_ee_widget($widget_path = null)
-    {
-        do_action('AHEE__EE_Config__register_widget__begin', $widget_path);
-        $widget_ext = '.widget.php';
-        // make all separators match
-        $widget_path = rtrim(str_replace('/\\', DS, $widget_path), DS);
-        // does the file path INCLUDE the actual file name as part of the path ?
-        if (strpos($widget_path, $widget_ext) !== false) {
-            // grab and shortcode file name from directory name and break apart at dots
-            $file_name = explode('.', basename($widget_path));
-            // take first segment from file name pieces and remove class prefix if it exists
-            $widget = strpos($file_name[0], 'EEW_') === 0 ? substr($file_name[0], 4) : $file_name[0];
-            // sanitize shortcode directory name
-            $widget = sanitize_key($widget);
-            // now we need to rebuild the shortcode path
-            $widget_path = explode(DS, $widget_path);
-            // remove last segment
-            array_pop($widget_path);
-            // glue it back together
-            $widget_path = implode(DS, $widget_path);
-        } else {
-            // grab and sanitize widget directory name
-            $widget = sanitize_key(basename($widget_path));
-        }
-        // create classname from widget directory name
-        $widget = str_replace(' ', '_', ucwords(str_replace('_', ' ', $widget)));
-        // add class prefix
-        $widget_class = 'EEW_' . $widget;
-        // does the widget exist ?
-        if (! is_readable($widget_path . DS . $widget_class . $widget_ext)) {
-            $msg = sprintf(
-                __(
-                    'The requested %s widget file could not be found or is not readable due to file permissions. Please ensure the following path is correct: %s',
-                    'event_espresso'
-                ),
-                $widget_class,
-                $widget_path . DS . $widget_class . $widget_ext
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return;
-        }
-        // load the widget class file
-        require_once($widget_path . DS . $widget_class . $widget_ext);
-        // verify that class exists
-        if (! class_exists($widget_class)) {
-            $msg = sprintf(__('The requested %s widget class does not exist.', 'event_espresso'), $widget_class);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return;
-        }
-        register_widget($widget_class);
-        // add to array of registered widgets
-        EE_Registry::instance()->widgets->{$widget_class} = $widget_path . DS . $widget_class . $widget_ext;
-    }
-
-
-    /**
-     *        _register_modules
-     *
-     * @access private
-     * @return array
-     */
-    private function _register_modules()
-    {
-        // grab list of installed modules
-        $modules_to_register = glob(EE_MODULES . '*', GLOB_ONLYDIR);
-        // filter list of modules to register
-        $modules_to_register = apply_filters(
-            'FHEE__EE_Config__register_modules__modules_to_register',
-            $modules_to_register
-        );
-        if (! empty($modules_to_register)) {
-            // loop through folders
-            foreach ($modules_to_register as $module_path) {
-                /**TEMPORARILY EXCLUDE gateways from modules for time being**/
-                if ($module_path !== EE_MODULES . 'zzz-copy-this-module-template'
-                    && $module_path !== EE_MODULES . 'gateways'
-                ) {
-                    // add to list of installed modules
-                    EE_Config::register_module($module_path);
-                }
-            }
-        }
-        // filter list of installed modules
-        return apply_filters(
-            'FHEE__EE_Config___register_modules__installed_modules',
-            EE_Registry::instance()->modules
-        );
-    }
-
-
-    /**
-     *    register_module - makes core aware of this module
-     *
-     * @access    public
-     * @param    string $module_path - full path up to and including module folder
-     * @return    bool
-     */
-    public static function register_module($module_path = null)
-    {
-        do_action('AHEE__EE_Config__register_module__begin', $module_path);
-        $module_ext = '.module.php';
-        // make all separators match
-        $module_path = str_replace(array('\\', '/'), DS, $module_path);
-        // does the file path INCLUDE the actual file name as part of the path ?
-        if (strpos($module_path, $module_ext) !== false) {
-            // grab and shortcode file name from directory name and break apart at dots
-            $module_file = explode('.', basename($module_path));
-            // now we need to rebuild the shortcode path
-            $module_path = explode(DS, $module_path);
-            // remove last segment
-            array_pop($module_path);
-            // glue it back together
-            $module_path = implode(DS, $module_path) . DS;
-            // take first segment from file name pieces and sanitize it
-            $module = preg_replace('/[^a-zA-Z0-9_\-]/', '', $module_file[0]);
-            // ensure class prefix is added
-            $module_class = strpos($module, 'EED_') !== 0 ? 'EED_' . $module : $module;
-        } else {
-            // we need to generate the filename based off of the folder name
-            // grab and sanitize module name
-            $module = strtolower(basename($module_path));
-            $module = preg_replace('/[^a-z0-9_\-]/', '', $module);
-            // like trailingslashit()
-            $module_path = rtrim($module_path, DS) . DS;
-            // create classname from module directory name
-            $module = str_replace(' ', '_', ucwords(str_replace('_', ' ', $module)));
-            // add class prefix
-            $module_class = 'EED_' . $module;
-        }
-        // does the module exist ?
-        if (! is_readable($module_path . DS . $module_class . $module_ext)) {
-            $msg = sprintf(
-                __(
-                    'The requested %s module file could not be found or is not readable due to file permissions.',
-                    'event_espresso'
-                ),
-                $module
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        // load the module class file
-        require_once($module_path . $module_class . $module_ext);
-        // verify that class exists
-        if (! class_exists($module_class)) {
-            $msg = sprintf(__('The requested %s module class does not exist.', 'event_espresso'), $module_class);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        // add to array of registered modules
-        EE_Registry::instance()->modules->{$module_class} = $module_path . $module_class . $module_ext;
-        do_action(
-            'AHEE__EE_Config__register_module__complete',
-            $module_class,
-            EE_Registry::instance()->modules->{$module_class}
-        );
-        return true;
-    }
-
-
-    /**
-     *    _initialize_modules
-     *    allow modules to set hooks for the rest of the system
-     *
-     * @access private
-     * @return void
-     */
-    private function _initialize_modules()
-    {
-        // cycle thru shortcode folders
-        foreach (EE_Registry::instance()->modules as $module_class => $module_path) {
-            // fire the shortcode class's set_hooks methods in case it needs to hook into other parts of the system
-            // which set hooks ?
-            if (is_admin()) {
-                // fire immediately
-                call_user_func(array($module_class, 'set_hooks_admin'));
-            } else {
-                // delay until other systems are online
-                add_action(
-                    'AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons',
-                    array($module_class, 'set_hooks')
-                );
-            }
-        }
-    }
-
-
-    /**
-     *    register_route - adds module method routes to route_map
-     *
-     * @access    public
-     * @param    string $route       - "pretty" public alias for module method
-     * @param    string $module      - module name (classname without EED_ prefix)
-     * @param    string $method_name - the actual module method to be routed to
-     * @param    string $key         - url param key indicating a route is being called
-     * @return    bool
-     */
-    public static function register_route($route = null, $module = null, $method_name = null, $key = 'ee')
-    {
-        do_action('AHEE__EE_Config__register_route__begin', $route, $module, $method_name);
-        $module = str_replace('EED_', '', $module);
-        $module_class = 'EED_' . $module;
-        if (! isset(EE_Registry::instance()->modules->{$module_class})) {
-            $msg = sprintf(__('The module %s has not been registered.', 'event_espresso'), $module);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        if (empty($route)) {
-            $msg = sprintf(__('No route has been supplied.', 'event_espresso'), $route);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        if (! method_exists('EED_' . $module, $method_name)) {
-            $msg = sprintf(
-                __('A valid class method for the %s route has not been supplied.', 'event_espresso'),
-                $route
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        EE_Config::$_module_route_map[ $key ][ $route ] = array('EED_' . $module, $method_name);
-        return true;
-    }
-
-
-    /**
-     *    get_route - get module method route
-     *
-     * @access    public
-     * @param    string $route - "pretty" public alias for module method
-     * @param    string $key   - url param key indicating a route is being called
-     * @return    string
-     */
-    public static function get_route($route = null, $key = 'ee')
-    {
-        do_action('AHEE__EE_Config__get_route__begin', $route);
-        $route = (string) apply_filters('FHEE__EE_Config__get_route', $route);
-        if (isset(EE_Config::$_module_route_map[ $key ][ $route ])) {
-            return EE_Config::$_module_route_map[ $key ][ $route ];
-        }
-        return null;
-    }
-
-
-    /**
-     *    get_routes - get ALL module method routes
-     *
-     * @access    public
-     * @return    array
-     */
-    public static function get_routes()
-    {
-        return EE_Config::$_module_route_map;
-    }
-
-
-    /**
-     *    register_forward - allows modules to forward request to another module for further processing
-     *
-     * @access    public
-     * @param    string       $route   - "pretty" public alias for module method
-     * @param    integer      $status  - integer value corresponding  to status constant strings set in module parent
-     *                                 class, allows different forwards to be served based on status
-     * @param    array|string $forward - function name or array( class, method )
-     * @param    string       $key     - url param key indicating a route is being called
-     * @return    bool
-     */
-    public static function register_forward($route = null, $status = 0, $forward = null, $key = 'ee')
-    {
-        do_action('AHEE__EE_Config__register_forward', $route, $status, $forward);
-        if (! isset(EE_Config::$_module_route_map[ $key ][ $route ]) || empty($route)) {
-            $msg = sprintf(
-                __('The module route %s for this forward has not been registered.', 'event_espresso'),
-                $route
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        if (empty($forward)) {
-            $msg = sprintf(__('No forwarding route has been supplied.', 'event_espresso'), $route);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        if (is_array($forward)) {
-            if (! isset($forward[1])) {
-                $msg = sprintf(
-                    __('A class method for the %s forwarding route has not been supplied.', 'event_espresso'),
-                    $route
-                );
-                EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-                return false;
-            }
-            if (! method_exists($forward[0], $forward[1])) {
-                $msg = sprintf(
-                    __('The class method %s for the %s forwarding route is in invalid.', 'event_espresso'),
-                    $forward[1],
-                    $route
-                );
-                EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-                return false;
-            }
-        } elseif (! function_exists($forward)) {
-            $msg = sprintf(
-                __('The function %s for the %s forwarding route is in invalid.', 'event_espresso'),
-                $forward,
-                $route
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        EE_Config::$_module_forward_map[ $key ][ $route ][ absint($status) ] = $forward;
-        return true;
-    }
-
-
-    /**
-     *    get_forward - get forwarding route
-     *
-     * @access    public
-     * @param    string  $route  - "pretty" public alias for module method
-     * @param    integer $status - integer value corresponding  to status constant strings set in module parent class,
-     *                           allows different forwards to be served based on status
-     * @param    string  $key    - url param key indicating a route is being called
-     * @return    string
-     */
-    public static function get_forward($route = null, $status = 0, $key = 'ee')
-    {
-        do_action('AHEE__EE_Config__get_forward__begin', $route, $status);
-        if (isset(EE_Config::$_module_forward_map[ $key ][ $route ][ $status ])) {
-            return apply_filters(
-                'FHEE__EE_Config__get_forward',
-                EE_Config::$_module_forward_map[ $key ][ $route ][ $status ],
-                $route,
-                $status
-            );
-        }
-        return null;
-    }
-
-
-    /**
-     *    register_forward - allows modules to specify different view templates for different method routes and status
-     *    results
-     *
-     * @access    public
-     * @param    string  $route  - "pretty" public alias for module method
-     * @param    integer $status - integer value corresponding  to status constant strings set in module parent class,
-     *                           allows different views to be served based on status
-     * @param    string  $view
-     * @param    string  $key    - url param key indicating a route is being called
-     * @return    bool
-     */
-    public static function register_view($route = null, $status = 0, $view = null, $key = 'ee')
-    {
-        do_action('AHEE__EE_Config__register_view__begin', $route, $status, $view);
-        if (! isset(EE_Config::$_module_route_map[ $key ][ $route ]) || empty($route)) {
-            $msg = sprintf(
-                __('The module route %s for this view has not been registered.', 'event_espresso'),
-                $route
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        if (! is_readable($view)) {
-            $msg = sprintf(
-                __(
-                    'The %s view file could not be found or is not readable due to file permissions.',
-                    'event_espresso'
-                ),
-                $view
-            );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        EE_Config::$_module_view_map[ $key ][ $route ][ absint($status) ] = $view;
-        return true;
-    }
-
-
-    /**
-     *    get_view - get view for route and status
-     *
-     * @access    public
-     * @param    string  $route  - "pretty" public alias for module method
-     * @param    integer $status - integer value corresponding  to status constant strings set in module parent class,
-     *                           allows different views to be served based on status
-     * @param    string  $key    - url param key indicating a route is being called
-     * @return    string
-     */
-    public static function get_view($route = null, $status = 0, $key = 'ee')
-    {
-        do_action('AHEE__EE_Config__get_view__begin', $route, $status);
-        if (isset(EE_Config::$_module_view_map[ $key ][ $route ][ $status ])) {
-            return apply_filters(
-                'FHEE__EE_Config__get_view',
-                EE_Config::$_module_view_map[ $key ][ $route ][ $status ],
-                $route,
-                $status
-            );
-        }
-        return null;
-    }
-
-
-    public function update_addon_option_names()
-    {
-        update_option(EE_Config::ADDON_OPTION_NAMES, $this->_addon_option_names);
-    }
-
-
-    public function shutdown()
-    {
-        $this->update_addon_option_names();
-    }
-
-
-    /**
-     * @return LegacyShortcodesManager
-     */
-    public static function getLegacyShortcodesManager()
-    {
-
-        if (! EE_Config::instance()->legacy_shortcodes_manager instanceof LegacyShortcodesManager) {
-            EE_Config::instance()->legacy_shortcodes_manager = new LegacyShortcodesManager(
-                EE_Registry::instance()
-            );
-        }
-        return EE_Config::instance()->legacy_shortcodes_manager;
-    }
-
-
-    /**
-     * register_shortcode - makes core aware of this shortcode
-     *
-     * @deprecated 4.9.26
-     * @param    string $shortcode_path - full path up to and including shortcode folder
-     * @return    bool
-     */
-    public static function register_shortcode($shortcode_path = null)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            __(
-                'Usage is deprecated. Use \EventEspresso\core\services\shortcodes\LegacyShortcodesManager::registerShortcode() as direct replacement, or better yet, please see the new \EventEspresso\core\services\shortcodes\ShortcodesManager class.',
-                'event_espresso'
-            ),
-            '4.9.26'
-        );
-        return EE_Config::instance()->getLegacyShortcodesManager()->registerShortcode($shortcode_path);
-    }
-}
-
-/**
- * Base class used for config classes. These classes should generally not have
- * magic functions in use, except we'll allow them to magically set and get stuff...
- * basically, they should just be well-defined stdClasses
- */
-class EE_Config_Base
-{
-
-    /**
-     * Utility function for escaping the value of a property and returning.
-     *
-     * @param string $property property name (checks to see if exists).
-     * @return mixed if a detected type found return the escaped value, otherwise just the raw value is returned.
-     * @throws \EE_Error
-     */
-    public function get_pretty($property)
-    {
-        if (! property_exists($this, $property)) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        '%1$s::get_pretty() has been called with the property %2$s which does not exist on the %1$s config class.',
-                        'event_espresso'
-                    ),
-                    get_class($this),
-                    $property
-                )
-            );
-        }
-        // just handling escaping of strings for now.
-        if (is_string($this->{$property})) {
-            return stripslashes($this->{$property});
-        }
-        return $this->{$property};
-    }
-
-
-    public function populate()
-    {
-        // grab defaults via a new instance of this class.
-        $class_name = get_class($this);
-        $defaults = new $class_name;
-        // loop through the properties for this class and see if they are set.  If they are NOT, then grab the
-        // default from our $defaults object.
-        foreach (get_object_vars($defaults) as $property => $value) {
-            if ($this->{$property} === null) {
-                $this->{$property} = $value;
-            }
-        }
-        // cleanup
-        unset($defaults);
-    }
-
-
-    /**
-     *        __isset
-     *
-     * @param $a
-     * @return bool
-     */
-    public function __isset($a)
-    {
-        return false;
-    }
-
-
-    /**
-     *        __unset
-     *
-     * @param $a
-     * @return bool
-     */
-    public function __unset($a)
-    {
-        return false;
-    }
-
-
-    /**
-     *        __clone
-     */
-    public function __clone()
-    {
-    }
-
-
-    /**
-     *        __wakeup
-     */
-    public function __wakeup()
-    {
-    }
-
-
-    /**
-     *        __destruct
-     */
-    public function __destruct()
-    {
-    }
-}
-
-/**
- * Class for defining what's in the EE_Config relating to registration settings
- */
-class EE_Core_Config extends EE_Config_Base
-{
-
-    const OPTION_NAME_UXIP = 'ee_ueip_optin';
-
-
-    public $current_blog_id;
-
-    public $ee_ueip_optin;
-
-    public $ee_ueip_has_notified;
-
-    /**
-     * Not to be confused with the 4 critical page variables (See
-     * get_critical_pages_array()), this is just an array of wp posts that have EE
-     * shortcodes in them. Keys are slugs, values are arrays with only 1 element: where the key is the shortcode
-     * in the page, and the value is the page's ID. The key 'posts' is basically a duplicate of this same array.
-     *
-     * @var array
-     */
-    public $post_shortcodes;
-
-    public $module_route_map;
-
-    public $module_forward_map;
-
-    public $module_view_map;
-
-    /**
-     * The next 4 vars are the IDs of critical EE pages.
-     *
-     * @var int
-     */
-    public $reg_page_id;
-
-    public $txn_page_id;
-
-    public $thank_you_page_id;
-
-    public $cancel_page_id;
-
-    /**
-     * The next 4 vars are the URLs of critical EE pages.
-     *
-     * @var int
-     */
-    public $reg_page_url;
-
-    public $txn_page_url;
-
-    public $thank_you_page_url;
-
-    public $cancel_page_url;
-
-    /**
-     * The next vars relate to the custom slugs for EE CPT routes
-     */
-    public $event_cpt_slug;
-
-    /**
-     * This caches the _ee_ueip_option in case this config is reset in the same
-     * request across blog switches in a multisite context.
-     * Avoids extra queries to the db for this option.
-     *
-     * @var bool
-     */
-    public static $ee_ueip_option;
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        // set default organization settings
-        $this->current_blog_id = get_current_blog_id();
-        $this->current_blog_id = $this->current_blog_id === null ? 1 : $this->current_blog_id;
-        $this->ee_ueip_optin = $this->_get_main_ee_ueip_optin();
-        $this->ee_ueip_has_notified = is_main_site() ? get_option('ee_ueip_has_notified', false) : true;
-        $this->post_shortcodes = array();
-        $this->module_route_map = array();
-        $this->module_forward_map = array();
-        $this->module_view_map = array();
-        // critical EE page IDs
-        $this->reg_page_id = 0;
-        $this->txn_page_id = 0;
-        $this->thank_you_page_id = 0;
-        $this->cancel_page_id = 0;
-        // critical EE page URLs
-        $this->reg_page_url = '';
-        $this->txn_page_url = '';
-        $this->thank_you_page_url = '';
-        $this->cancel_page_url = '';
-        // cpt slugs
-        $this->event_cpt_slug = __('events', 'event_espresso');
-        // ueip constant check
-        if (defined('EE_DISABLE_UXIP') && EE_DISABLE_UXIP) {
-            $this->ee_ueip_optin = false;
-            $this->ee_ueip_has_notified = true;
-        }
-    }
-
-
-    /**
-     * @return array
-     */
-    public function get_critical_pages_array()
-    {
-        return array(
-            $this->reg_page_id,
-            $this->txn_page_id,
-            $this->thank_you_page_id,
-            $this->cancel_page_id,
-        );
-    }
-
-
-    /**
-     * @return array
-     */
-    public function get_critical_pages_shortcodes_array()
-    {
-        return array(
-            $this->reg_page_id       => 'ESPRESSO_CHECKOUT',
-            $this->txn_page_id       => 'ESPRESSO_TXN_PAGE',
-            $this->thank_you_page_id => 'ESPRESSO_THANK_YOU',
-            $this->cancel_page_id    => 'ESPRESSO_CANCELLED',
-        );
-    }
-
-
-    /**
-     *  gets/returns URL for EE reg_page
-     *
-     * @access    public
-     * @return    string
-     */
-    public function reg_page_url()
-    {
-        if (! $this->reg_page_url) {
-            $this->reg_page_url = add_query_arg(
-                array('uts' => time()),
-                get_permalink($this->reg_page_id)
-            ) . '#checkout';
-        }
-        return $this->reg_page_url;
-    }
-
-
-    /**
-     *  gets/returns URL for EE txn_page
-     *
-     * @param array $query_args like what gets passed to
-     *                          add_query_arg() as the first argument
-     * @access    public
-     * @return    string
-     */
-    public function txn_page_url($query_args = array())
-    {
-        if (! $this->txn_page_url) {
-            $this->txn_page_url = get_permalink($this->txn_page_id);
-        }
-        if ($query_args) {
-            return add_query_arg($query_args, $this->txn_page_url);
-        } else {
-            return $this->txn_page_url;
-        }
-    }
-
-
-    /**
-     *  gets/returns URL for EE thank_you_page
-     *
-     * @param array $query_args like what gets passed to
-     *                          add_query_arg() as the first argument
-     * @access    public
-     * @return    string
-     */
-    public function thank_you_page_url($query_args = array())
-    {
-        if (! $this->thank_you_page_url) {
-            $this->thank_you_page_url = get_permalink($this->thank_you_page_id);
-        }
-        if ($query_args) {
-            return add_query_arg($query_args, $this->thank_you_page_url);
-        } else {
-            return $this->thank_you_page_url;
-        }
-    }
-
-
-    /**
-     *  gets/returns URL for EE cancel_page
-     *
-     * @access    public
-     * @return    string
-     */
-    public function cancel_page_url()
-    {
-        if (! $this->cancel_page_url) {
-            $this->cancel_page_url = get_permalink($this->cancel_page_id);
-        }
-        return $this->cancel_page_url;
-    }
-
-
-    /**
-     * Resets all critical page urls to their original state.  Used primarily by the __sleep() magic method currently.
-     *
-     * @since 4.7.5
-     */
-    protected function _reset_urls()
-    {
-        $this->reg_page_url = '';
-        $this->txn_page_url = '';
-        $this->cancel_page_url = '';
-        $this->thank_you_page_url = '';
-    }
-
-
-    /**
-     * Used to return what the optin value is set for the EE User Experience Program.
-     * This accounts for multisite and this value being requested for a subsite.  In multisite, the value is set
-     * on the main site only.
-     *
-     * @return bool
-     */
-    protected function _get_main_ee_ueip_optin()
-    {
-        // if this is the main site then we can just bypass our direct query.
-        if (is_main_site()) {
-            return get_option(self::OPTION_NAME_UXIP, false);
-        }
-        // is this already cached for this request?  If so use it.
-        if (EE_Core_Config::$ee_ueip_option !== null) {
-            return EE_Core_Config::$ee_ueip_option;
-        }
-        global $wpdb;
-        $current_network_main_site = is_multisite() ? get_current_site() : null;
-        $current_main_site_id = ! empty($current_network_main_site) ? $current_network_main_site->blog_id : 1;
-        $option = self::OPTION_NAME_UXIP;
-        // set correct table for query
-        $table_name = $wpdb->get_blog_prefix($current_main_site_id) . 'options';
-        // rather than getting blog option for the $current_main_site_id, we do a direct $wpdb query because
-        // get_blog_option() does a switch_to_blog an that could cause infinite recursion because EE_Core_Config might be
-        // re-constructed on the blog switch.  Note, we are still executing any core wp filters on this option retrieval.
-        // this bit of code is basically a direct copy of get_option without any caching because we are NOT switched to the blog
-        // for the purpose of caching.
-        $pre = apply_filters('pre_option_' . $option, false, $option);
-        if (false !== $pre) {
-            EE_Core_Config::$ee_ueip_option = $pre;
-            return EE_Core_Config::$ee_ueip_option;
-        }
-        $row = $wpdb->get_row(
-            $wpdb->prepare(
-                "SELECT option_value FROM $table_name WHERE option_name = %s LIMIT 1",
-                $option
-            )
-        );
-        if (is_object($row)) {
-            $value = $row->option_value;
-        } else { // option does not exist so use default.
-            EE_Core_Config::$ee_ueip_option =  apply_filters('default_option_' . $option, false, $option);
-            return EE_Core_Config::$ee_ueip_option;
-        }
-        EE_Core_Config::$ee_ueip_option = apply_filters('option_' . $option, maybe_unserialize($value), $option);
-        return EE_Core_Config::$ee_ueip_option;
-    }
-
-
-    /**
-     * Utility function for escaping the value of a property and returning.
-     *
-     * @param string $property property name (checks to see if exists).
-     * @return mixed if a detected type found return the escaped value, otherwise just the raw value is returned.
-     * @throws \EE_Error
-     */
-    public function get_pretty($property)
-    {
-        if ($property === self::OPTION_NAME_UXIP) {
-            return $this->ee_ueip_optin ? 'yes' : 'no';
-        }
-        return parent::get_pretty($property);
-    }
-
-
-    /**
-     * Currently used to ensure critical page urls have initial values saved to the db instead of any current set values
-     * on the object.
-     *
-     * @return array
-     */
-    public function __sleep()
-    {
-        // reset all url properties
-        $this->_reset_urls();
-        // return what to save to db
-        return array_keys(get_object_vars($this));
-    }
-}
-
-/**
- * Config class for storing info on the Organization
- */
-class EE_Organization_Config extends EE_Config_Base
-{
-
-    /**
-     * @var string $name
-     * eg EE4.1
-     */
-    public $name;
-
-    /**
-     * @var string $address_1
-     * eg 123 Onna Road
-     */
-    public $address_1;
-
-    /**
-     * @var string $address_2
-     * eg PO Box 123
-     */
-    public $address_2;
-
-    /**
-     * @var string $city
-     * eg Inna City
-     */
-    public $city;
-
-    /**
-     * @var int $STA_ID
-     * eg 4
-     */
-    public $STA_ID;
-
-    /**
-     * @var string $CNT_ISO
-     * eg US
-     */
-    public $CNT_ISO;
-
-    /**
-     * @var string $zip
-     * eg 12345  or V1A 2B3
-     */
-    public $zip;
-
-    /**
-     * @var string $email
-     * eg support@eventespresso.com
-     */
-    public $email;
-
-    /**
-     * @var string $phone
-     * eg. 111-111-1111
-     */
-    public $phone;
-
-    /**
-     * @var string $vat
-     * VAT/Tax Number
-     */
-    public $vat;
-
-    /**
-     * @var string $logo_url
-     * eg http://www.somedomain.com/wp-content/uploads/kittehs.jpg
-     */
-    public $logo_url;
-
-    /**
-     * The below are all various properties for holding links to organization social network profiles
-     *
-     * @var string
-     */
-    /**
-     * facebook (facebook.com/profile.name)
-     *
-     * @var string
-     */
-    public $facebook;
-
-    /**
-     * twitter (twitter.com/twitter_handle)
-     *
-     * @var string
-     */
-    public $twitter;
-
-    /**
-     * linkedin (linkedin.com/in/profile_name)
-     *
-     * @var string
-     */
-    public $linkedin;
-
-    /**
-     * pinterest (www.pinterest.com/profile_name)
-     *
-     * @var string
-     */
-    public $pinterest;
-
-    /**
-     * google+ (google.com/+profileName)
-     *
-     * @var string
-     */
-    public $google;
-
-    /**
-     * instagram (instagram.com/handle)
-     *
-     * @var string
-     */
-    public $instagram;
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        // set default organization settings
-        // decode HTML entities from the WP blogname, because it's stored in the DB with HTML entities encoded
-        $this->name = wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES);
-        $this->address_1 = '123 Onna Road';
-        $this->address_2 = 'PO Box 123';
-        $this->city = 'Inna City';
-        $this->STA_ID = 4;
-        $this->CNT_ISO = 'US';
-        $this->zip = '12345';
-        $this->email = get_bloginfo('admin_email');
-        $this->phone = '';
-        $this->vat = '123456789';
-        $this->logo_url = '';
-        $this->facebook = '';
-        $this->twitter = '';
-        $this->linkedin = '';
-        $this->pinterest = '';
-        $this->google = '';
-        $this->instagram = '';
-    }
-}
-
-/**
- * Class for defining what's in the EE_Config relating to currency
- */
-class EE_Currency_Config extends EE_Config_Base
-{
-
-    /**
-     * @var string $code
-     * eg 'US'
-     */
-    public $code;
-
-    /**
-     * @var string $name
-     * eg 'Dollar'
-     */
-    public $name;
-
-    /**
-     * plural name
-     *
-     * @var string $plural
-     * eg 'Dollars'
-     */
-    public $plural;
-
-    /**
-     * currency sign
-     *
-     * @var string $sign
-     * eg '$'
-     */
-    public $sign;
-
-    /**
-     * Whether the currency sign should come before the number or not
-     *
-     * @var boolean $sign_b4
-     */
-    public $sign_b4;
-
-    /**
-     * How many digits should come after the decimal place
-     *
-     * @var int $dec_plc
-     */
-    public $dec_plc;
-
-    /**
-     * Symbol to use for decimal mark
-     *
-     * @var string $dec_mrk
-     * eg '.'
-     */
-    public $dec_mrk;
-
-    /**
-     * Symbol to use for thousands
-     *
-     * @var string $thsnds
-     * eg ','
-     */
-    public $thsnds;
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     * @param string $CNT_ISO
-     * @throws \EE_Error
-     */
-    public function __construct($CNT_ISO = '')
-    {
-        /** @var \EventEspresso\core\services\database\TableAnalysis $table_analysis */
-        $table_analysis = EE_Registry::instance()->create('TableAnalysis', array(), true);
-        // get country code from organization settings or use default
-        $ORG_CNT = isset(EE_Registry::instance()->CFG->organization)
-                   && EE_Registry::instance()->CFG->organization instanceof EE_Organization_Config
-            ? EE_Registry::instance()->CFG->organization->CNT_ISO
-            : '';
-        // but override if requested
-        $CNT_ISO = ! empty($CNT_ISO) ? $CNT_ISO : $ORG_CNT;
-        // so if that all went well, and we are not in M-Mode (cuz you can't query the db in M-Mode) and double-check the countries table exists
-        if (! empty($CNT_ISO)
-            && EE_Maintenance_Mode::instance()->models_can_query()
-            && $table_analysis->tableExists(EE_Registry::instance()->load_model('Country')->table())
-        ) {
-            // retrieve the country settings from the db, just in case they have been customized
-            $country = EE_Registry::instance()->load_model('Country')->get_one_by_ID($CNT_ISO);
-            if ($country instanceof EE_Country) {
-                $this->code = $country->currency_code();    // currency code: USD, CAD, EUR
-                $this->name = $country->currency_name_single();    // Dollar
-                $this->plural = $country->currency_name_plural();    // Dollars
-                $this->sign = $country->currency_sign();            // currency sign: $
-                $this->sign_b4 = $country->currency_sign_before(
-                );        // currency sign before or after: $TRUE  or  FALSE$
-                $this->dec_plc = $country->currency_decimal_places();    // decimal places: 2 = 0.00  3 = 0.000
-                $this->dec_mrk = $country->currency_decimal_mark(
-                );    // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
-                $this->thsnds = $country->currency_thousands_separator(
-                );    // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
-            }
-        }
-        // fallback to hardcoded defaults, in case the above failed
-        if (empty($this->code)) {
-            // set default currency settings
-            $this->code = 'USD';    // currency code: USD, CAD, EUR
-            $this->name = __('Dollar', 'event_espresso');    // Dollar
-            $this->plural = __('Dollars', 'event_espresso');    // Dollars
-            $this->sign = '$';    // currency sign: $
-            $this->sign_b4 = true;    // currency sign before or after: $TRUE  or  FALSE$
-            $this->dec_plc = 2;    // decimal places: 2 = 0.00  3 = 0.000
-            $this->dec_mrk = '.';    // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
-            $this->thsnds = ',';    // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
-        }
-    }
-}
-
-/**
- * Class for defining what's in the EE_Config relating to registration settings
- */
-class EE_Registration_Config extends EE_Config_Base
-{
-
-    /**
-     * Default registration status
-     *
-     * @var string $default_STS_ID
-     * eg 'RPP'
-     */
-    public $default_STS_ID;
-
-    /**
-     * For new events, this will be the default value for the maximum number of tickets (equivalent to maximum number of
-     * registrations)
-     *
-     * @var int
-     */
-    public $default_maximum_number_of_tickets;
-
-    /**
-     * level of validation to apply to email addresses
-     *
-     * @var string $email_validation_level
-     * options: 'basic', 'wp_default', 'i18n', 'i18n_dns'
-     */
-    public $email_validation_level;
-
-    /**
-     *    whether or not to show alternate payment options during the reg process if payment status is pending
-     *
-     * @var boolean $show_pending_payment_options
-     */
-    public $show_pending_payment_options;
-
-    /**
-     * Whether to skip the registration confirmation page
-     *
-     * @var boolean $skip_reg_confirmation
-     */
-    public $skip_reg_confirmation;
-
-    /**
-     * an array of SPCO reg steps where:
-     *        the keys denotes the reg step order
-     *        each element consists of an array with the following elements:
-     *            "file_path" => the file path to the EE_SPCO_Reg_Step class
-     *            "class_name" => the specific EE_SPCO_Reg_Step child class name
-     *            "slug" => the URL param used to trigger the reg step
-     *
-     * @var array $reg_steps
-     */
-    public $reg_steps;
-
-    /**
-     * Whether registration confirmation should be the last page of SPCO
-     *
-     * @var boolean $reg_confirmation_last
-     */
-    public $reg_confirmation_last;
-
-    /**
-     * Whether or not to enable the EE Bot Trap
-     *
-     * @var boolean $use_bot_trap
-     */
-    public $use_bot_trap;
-
-    /**
-     * Whether or not to encrypt some data sent by the EE Bot Trap
-     *
-     * @var boolean $use_encryption
-     */
-    public $use_encryption;
-
-    /**
-     * Whether or not to use ReCaptcha
-     *
-     * @var boolean $use_captcha
-     */
-    public $use_captcha;
-
-    /**
-     * ReCaptcha Theme
-     *
-     * @var string $recaptcha_theme
-     *    options: 'dark', 'light', 'invisible'
-     */
-    public $recaptcha_theme;
-
-    /**
-     * ReCaptcha Badge - determines the position of the reCAPTCHA badge if using Invisible ReCaptcha.
-     *
-     * @var string $recaptcha_badge
-     *    options: 'bottomright', 'bottomleft', 'inline'
-     */
-    public $recaptcha_badge;
+	const OPTION_NAME = 'ee_config';
+
+	const LOG_NAME = 'ee_config_log';
+
+	const LOG_LENGTH = 100;
+
+	const ADDON_OPTION_NAMES = 'ee_config_option_names';
+
+	/**
+	 *    instance of the EE_Config object
+	 *
+	 * @var    EE_Config $_instance
+	 * @access    private
+	 */
+	private static $_instance;
+
+	/**
+	 * @var boolean $_logging_enabled
+	 */
+	private static $_logging_enabled = false;
+
+	/**
+	 * @var LegacyShortcodesManager $legacy_shortcodes_manager
+	 */
+	private $legacy_shortcodes_manager;
+
+	/**
+	 * An StdClass whose property names are addon slugs,
+	 * and values are their config classes
+	 *
+	 * @var StdClass
+	 */
+	public $addons;
+
+	/**
+	 * @var EE_Admin_Config
+	 */
+	public $admin;
+
+	/**
+	 * @var EE_Core_Config
+	 */
+	public $core;
+
+	/**
+	 * @var EE_Currency_Config
+	 */
+	public $currency;
+
+	/**
+	 * @var EE_Organization_Config
+	 */
+	public $organization;
+
+	/**
+	 * @var EE_Registration_Config
+	 */
+	public $registration;
+
+	/**
+	 * @var EE_Template_Config
+	 */
+	public $template_settings;
+
+	/**
+	 * Holds EE environment values.
+	 *
+	 * @var EE_Environment_Config
+	 */
+	public $environment;
+
+	/**
+	 * settings pertaining to Google maps
+	 *
+	 * @var EE_Map_Config
+	 */
+	public $map_settings;
+
+	/**
+	 * settings pertaining to Taxes
+	 *
+	 * @var EE_Tax_Config
+	 */
+	public $tax_settings;
+
+	/**
+	 * Settings pertaining to global messages settings.
+	 *
+	 * @var EE_Messages_Config
+	 */
+	public $messages;
+
+	/**
+	 * @deprecated
+	 * @var EE_Gateway_Config
+	 */
+	public $gateway;
+
+	/**
+	 * @var    array $_addon_option_names
+	 * @access    private
+	 */
+	private $_addon_option_names = array();
+
+	/**
+	 * @var    array $_module_route_map
+	 * @access    private
+	 */
+	private static $_module_route_map = array();
+
+	/**
+	 * @var    array $_module_forward_map
+	 * @access    private
+	 */
+	private static $_module_forward_map = array();
+
+	/**
+	 * @var    array $_module_view_map
+	 * @access    private
+	 */
+	private static $_module_view_map = array();
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @access    public
+	 * @return EE_Config instance
+	 */
+	public static function instance()
+	{
+		// check if class object is instantiated, and instantiated properly
+		if (! self::$_instance instanceof EE_Config) {
+			self::$_instance = new self();
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * Resets the config
+	 *
+	 * @param bool    $hard_reset    if TRUE, sets EE_CONFig back to its original settings in the database. If FALSE
+	 *                               (default) leaves the database alone, and merely resets the EE_Config object to
+	 *                               reflect its state in the database
+	 * @param boolean $reinstantiate if TRUE (default) call instance() and return it. Otherwise, just leave
+	 *                               $_instance as NULL. Useful in case you want to forget about the old instance on
+	 *                               EE_Config, but might not be ready to instantiate EE_Config currently (eg if the
+	 *                               site was put into maintenance mode)
+	 * @return EE_Config
+	 */
+	public static function reset($hard_reset = false, $reinstantiate = true)
+	{
+		if (self::$_instance instanceof EE_Config) {
+			if ($hard_reset) {
+				self::$_instance->legacy_shortcodes_manager = null;
+				self::$_instance->_addon_option_names = array();
+				self::$_instance->_initialize_config();
+				self::$_instance->update_espresso_config();
+			}
+			self::$_instance->update_addon_option_names();
+		}
+		self::$_instance = null;
+		// we don't need to reset the static properties imo because those should
+		// only change when a module is added or removed. Currently we don't
+		// support removing a module during a request when it previously existed
+		if ($reinstantiate) {
+			return self::instance();
+		} else {
+			return null;
+		}
+	}
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    private
+	 */
+	private function __construct()
+	{
+		do_action('AHEE__EE_Config__construct__begin', $this);
+		EE_Config::$_logging_enabled = apply_filters('FHEE__EE_Config___construct__logging_enabled', false);
+		// setup empty config classes
+		$this->_initialize_config();
+		// load existing EE site settings
+		$this->_load_core_config();
+		// confirm everything loaded correctly and set filtered defaults if not
+		$this->_verify_config();
+		//  register shortcodes and modules
+		add_action(
+			'AHEE__EE_System__register_shortcodes_modules_and_widgets',
+			array($this, 'register_shortcodes_and_modules'),
+			999
+		);
+		//  initialize shortcodes and modules
+		add_action('AHEE__EE_System__core_loaded_and_ready', array($this, 'initialize_shortcodes_and_modules'));
+		// register widgets
+		add_action('widgets_init', array($this, 'widgets_init'), 10);
+		// shutdown
+		add_action('shutdown', array($this, 'shutdown'), 10);
+		// construct__end hook
+		do_action('AHEE__EE_Config__construct__end', $this);
+		// hardcoded hack
+		$this->template_settings->current_espresso_theme = 'Espresso_Arabica_2014';
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public static function logging_enabled()
+	{
+		return self::$_logging_enabled;
+	}
+
+
+	/**
+	 * use to get the current theme if needed from static context
+	 *
+	 * @return string current theme set.
+	 */
+	public static function get_current_theme()
+	{
+		return isset(self::$_instance->template_settings->current_espresso_theme)
+			? self::$_instance->template_settings->current_espresso_theme : 'Espresso_Arabica_2014';
+	}
+
+
+	/**
+	 *        _initialize_config
+	 *
+	 * @access private
+	 * @return void
+	 */
+	private function _initialize_config()
+	{
+		EE_Config::trim_log();
+		// set defaults
+		$this->_addon_option_names = get_option(EE_Config::ADDON_OPTION_NAMES, array());
+		$this->addons = new stdClass();
+		// set _module_route_map
+		EE_Config::$_module_route_map = array();
+		// set _module_forward_map
+		EE_Config::$_module_forward_map = array();
+		// set _module_view_map
+		EE_Config::$_module_view_map = array();
+	}
+
+
+	/**
+	 *        load core plugin configuration
+	 *
+	 * @access private
+	 * @return void
+	 */
+	private function _load_core_config()
+	{
+		// load_core_config__start hook
+		do_action('AHEE__EE_Config___load_core_config__start', $this);
+		$espresso_config = $this->get_espresso_config();
+		foreach ($espresso_config as $config => $settings) {
+			// load_core_config__start hook
+			$settings = apply_filters(
+				'FHEE__EE_Config___load_core_config__config_settings',
+				$settings,
+				$config,
+				$this
+			);
+			if (is_object($settings) && property_exists($this, $config)) {
+				$this->{$config} = apply_filters('FHEE__EE_Config___load_core_config__' . $config, $settings);
+				// call configs populate method to ensure any defaults are set for empty values.
+				if (method_exists($settings, 'populate')) {
+					$this->{$config}->populate();
+				}
+				if (method_exists($settings, 'do_hooks')) {
+					$this->{$config}->do_hooks();
+				}
+			}
+		}
+		if (apply_filters('FHEE__EE_Config___load_core_config__update_espresso_config', false)) {
+			$this->update_espresso_config();
+		}
+		// load_core_config__end hook
+		do_action('AHEE__EE_Config___load_core_config__end', $this);
+	}
+
+
+	/**
+	 *    _verify_config
+	 *
+	 * @access    protected
+	 * @return    void
+	 */
+	protected function _verify_config()
+	{
+		$this->core = $this->core instanceof EE_Core_Config
+			? $this->core
+			: new EE_Core_Config();
+		$this->core = apply_filters('FHEE__EE_Config___initialize_config__core', $this->core);
+		$this->organization = $this->organization instanceof EE_Organization_Config
+			? $this->organization
+			: new EE_Organization_Config();
+		$this->organization = apply_filters(
+			'FHEE__EE_Config___initialize_config__organization',
+			$this->organization
+		);
+		$this->currency = $this->currency instanceof EE_Currency_Config
+			? $this->currency
+			: new EE_Currency_Config();
+		$this->currency = apply_filters('FHEE__EE_Config___initialize_config__currency', $this->currency);
+		$this->registration = $this->registration instanceof EE_Registration_Config
+			? $this->registration
+			: new EE_Registration_Config();
+		$this->registration = apply_filters(
+			'FHEE__EE_Config___initialize_config__registration',
+			$this->registration
+		);
+		$this->admin = $this->admin instanceof EE_Admin_Config
+			? $this->admin
+			: new EE_Admin_Config();
+		$this->admin = apply_filters('FHEE__EE_Config___initialize_config__admin', $this->admin);
+		$this->template_settings = $this->template_settings instanceof EE_Template_Config
+			? $this->template_settings
+			: new EE_Template_Config();
+		$this->template_settings = apply_filters(
+			'FHEE__EE_Config___initialize_config__template_settings',
+			$this->template_settings
+		);
+		$this->map_settings = $this->map_settings instanceof EE_Map_Config
+			? $this->map_settings
+			: new EE_Map_Config();
+		$this->map_settings = apply_filters(
+			'FHEE__EE_Config___initialize_config__map_settings',
+			$this->map_settings
+		);
+		$this->environment = $this->environment instanceof EE_Environment_Config
+			? $this->environment
+			: new EE_Environment_Config();
+		$this->environment = apply_filters(
+			'FHEE__EE_Config___initialize_config__environment',
+			$this->environment
+		);
+		$this->tax_settings = $this->tax_settings instanceof EE_Tax_Config
+			? $this->tax_settings
+			: new EE_Tax_Config();
+		$this->tax_settings = apply_filters(
+			'FHEE__EE_Config___initialize_config__tax_settings',
+			$this->tax_settings
+		);
+		$this->messages = apply_filters('FHEE__EE_Config__initialize_config__messages', $this->messages);
+		$this->messages = $this->messages instanceof EE_Messages_Config
+			? $this->messages
+			: new EE_Messages_Config();
+		$this->gateway = $this->gateway instanceof EE_Gateway_Config
+			? $this->gateway
+			: new EE_Gateway_Config();
+		$this->gateway = apply_filters('FHEE__EE_Config___initialize_config__gateway', $this->gateway);
+		$this->legacy_shortcodes_manager = null;
+	}
+
+
+	/**
+	 *    get_espresso_config
+	 *
+	 * @access    public
+	 * @return    array of espresso config stuff
+	 */
+	public function get_espresso_config()
+	{
+		// grab espresso configuration
+		return apply_filters(
+			'FHEE__EE_Config__get_espresso_config__CFG',
+			get_option(EE_Config::OPTION_NAME, array())
+		);
+	}
+
+
+	/**
+	 *    double_check_config_comparison
+	 *
+	 * @access    public
+	 * @param string $option
+	 * @param        $old_value
+	 * @param        $value
+	 */
+	public function double_check_config_comparison($option = '', $old_value, $value)
+	{
+		// make sure we're checking the ee config
+		if ($option === EE_Config::OPTION_NAME) {
+			// run a loose comparison of the old value against the new value for type and properties,
+			// but NOT exact instance like WP update_option does (ie: NOT type safe comparison)
+			if ($value != $old_value) {
+				// if they are NOT the same, then remove the hook,
+				// which means the subsequent update results will be based solely on the update query results
+				// the reason we do this is because, as stated above,
+				// WP update_option performs an exact instance comparison (===) on any update values passed to it
+				// this happens PRIOR to serialization and any subsequent update.
+				// If values are found to match their previous old value,
+				// then WP bails before performing any update.
+				// Since we are passing the EE_Config object, it is comparing the EXACT instance of the saved version
+				// it just pulled from the db, with the one being passed to it (which will not match).
+				// HOWEVER, once the object is serialized and passed off to MySQL to update,
+				// MySQL MAY ALSO NOT perform the update because
+				// the string it sees in the db looks the same as the new one it has been passed!!!
+				// This results in the query returning an "affected rows" value of ZERO,
+				// which gets returned immediately by WP update_option and looks like an error.
+				remove_action('update_option', array($this, 'check_config_updated'));
+			}
+		}
+	}
+
+
+	/**
+	 *    update_espresso_config
+	 *
+	 * @access   public
+	 */
+	protected function _reset_espresso_addon_config()
+	{
+		$this->_addon_option_names = array();
+		foreach ($this->addons as $addon_name => $addon_config_obj) {
+			$addon_config_obj = maybe_unserialize($addon_config_obj);
+			if ($addon_config_obj instanceof EE_Config_Base) {
+				$this->update_config('addons', $addon_name, $addon_config_obj, false);
+			}
+			$this->addons->{$addon_name} = null;
+		}
+	}
+
+
+	/**
+	 *    update_espresso_config
+	 *
+	 * @access   public
+	 * @param   bool $add_success
+	 * @param   bool $add_error
+	 * @return   bool
+	 */
+	public function update_espresso_config($add_success = false, $add_error = true)
+	{
+		// don't allow config updates during WP heartbeats
+		if (\EE_Registry::instance()->REQ->get('action', '') === 'heartbeat') {
+			return false;
+		}
+		// commented out the following re: https://events.codebasehq.com/projects/event-espresso/tickets/8197
+		// $clone = clone( self::$_instance );
+		// self::$_instance = NULL;
+		do_action('AHEE__EE_Config__update_espresso_config__begin', $this);
+		$this->_reset_espresso_addon_config();
+		// hook into update_option because that happens AFTER the ( $value === $old_value ) conditional
+		// but BEFORE the actual update occurs
+		add_action('update_option', array($this, 'double_check_config_comparison'), 1, 3);
+		// don't want to persist legacy_shortcodes_manager, but don't want to lose it either
+		$legacy_shortcodes_manager = $this->legacy_shortcodes_manager;
+		$this->legacy_shortcodes_manager = null;
+		// now update "ee_config"
+		$saved = update_option(EE_Config::OPTION_NAME, $this);
+		$this->legacy_shortcodes_manager = $legacy_shortcodes_manager;
+		EE_Config::log(EE_Config::OPTION_NAME);
+		// if not saved... check if the hook we just added still exists;
+		// if it does, it means one of two things:
+		// that update_option bailed at the($value === $old_value) conditional,
+		// or...
+		// the db update query returned 0 rows affected
+		// (probably because the data  value was the same from it's perspective)
+		// so the existence of the hook means that a negative result from update_option is NOT an error,
+		// but just means no update occurred, so don't display an error to the user.
+		// BUT... if update_option returns FALSE, AND the hook is missing,
+		// then it means that something truly went wrong
+		$saved = ! $saved ? has_action('update_option', array($this, 'double_check_config_comparison')) : $saved;
+		// remove our action since we don't want it in the system anymore
+		remove_action('update_option', array($this, 'double_check_config_comparison'), 1);
+		do_action('AHEE__EE_Config__update_espresso_config__end', $this, $saved);
+		// self::$_instance = $clone;
+		// unset( $clone );
+		// if config remains the same or was updated successfully
+		if ($saved) {
+			if ($add_success) {
+				EE_Error::add_success(
+					__('The Event Espresso Configuration Settings have been successfully updated.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+			return true;
+		} else {
+			if ($add_error) {
+				EE_Error::add_error(
+					__('The Event Espresso Configuration Settings were not updated.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+			return false;
+		}
+	}
+
+
+	/**
+	 *    _verify_config_params
+	 *
+	 * @access    private
+	 * @param    string         $section
+	 * @param    string         $name
+	 * @param    string         $config_class
+	 * @param    EE_Config_Base $config_obj
+	 * @param    array          $tests_to_run
+	 * @param    bool           $display_errors
+	 * @return    bool    TRUE on success, FALSE on fail
+	 */
+	private function _verify_config_params(
+		$section = '',
+		$name = '',
+		$config_class = '',
+		$config_obj = null,
+		$tests_to_run = array(1, 2, 3, 4, 5, 6, 7, 8),
+		$display_errors = true
+	) {
+		try {
+			foreach ($tests_to_run as $test) {
+				switch ($test) {
+					// TEST #1 : check that section was set
+					case 1:
+						if (empty($section)) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__(
+											'No configuration section has been provided while attempting to save "%s".',
+											'event_espresso'
+										),
+										$config_class
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #2 : check that settings section exists
+					case 2:
+						if (! isset($this->{$section})) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__('The "%s" configuration section does not exist.', 'event_espresso'),
+										$section
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #3 : check that section is the proper format
+					case 3:
+						if (! ($this->{$section} instanceof EE_Config_Base || $this->{$section} instanceof stdClass)
+						) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__(
+											'The "%s" configuration settings have not been formatted correctly.',
+											'event_espresso'
+										),
+										$section
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #4 : check that config section name has been set
+					case 4:
+						if (empty($name)) {
+							if ($display_errors) {
+								throw new EE_Error(
+									__(
+										'No name has been provided for the specific configuration section.',
+										'event_espresso'
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #5 : check that a config class name has been set
+					case 5:
+						if (empty($config_class)) {
+							if ($display_errors) {
+								throw new EE_Error(
+									__(
+										'No class name has been provided for the specific configuration section.',
+										'event_espresso'
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #6 : verify config class is accessible
+					case 6:
+						if (! class_exists($config_class)) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__(
+											'The "%s" class does not exist. Please ensure that an autoloader has been set for it.',
+											'event_espresso'
+										),
+										$config_class
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #7 : check that config has even been set
+					case 7:
+						if (! isset($this->{$section}->{$name})) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__('No configuration has been set for "%1$s->%2$s".', 'event_espresso'),
+										$section,
+										$name
+									)
+								);
+							}
+							return false;
+						} else {
+							// and make sure it's not serialized
+							$this->{$section}->{$name} = maybe_unserialize($this->{$section}->{$name});
+						}
+						break;
+					// TEST #8 : check that config is the requested type
+					case 8:
+						if (! $this->{$section}->{$name} instanceof $config_class) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__(
+											'The configuration for "%1$s->%2$s" is not of the "%3$s" class.',
+											'event_espresso'
+										),
+										$section,
+										$name,
+										$config_class
+									)
+								);
+							}
+							return false;
+						}
+						break;
+					// TEST #9 : verify config object
+					case 9:
+						if (! $config_obj instanceof EE_Config_Base) {
+							if ($display_errors) {
+								throw new EE_Error(
+									sprintf(
+										__('The "%s" class is not an instance of EE_Config_Base.', 'event_espresso'),
+										print_r($config_obj, true)
+									)
+								);
+							}
+							return false;
+						}
+						break;
+				}
+			}
+		} catch (EE_Error $e) {
+			$e->get_error();
+		}
+		// you have successfully run the gauntlet
+		return true;
+	}
+
+
+	/**
+	 *    _generate_config_option_name
+	 *
+	 * @access        protected
+	 * @param        string $section
+	 * @param        string $name
+	 * @return        string
+	 */
+	private function _generate_config_option_name($section = '', $name = '')
+	{
+		return 'ee_config-' . strtolower($section . '-' . str_replace(array('EE_', 'EED_'), '', $name));
+	}
+
+
+	/**
+	 *    _set_config_class
+	 * ensures that a config class is set, either from a passed config class or one generated from the config name
+	 *
+	 * @access    private
+	 * @param    string $config_class
+	 * @param    string $name
+	 * @return    string
+	 */
+	private function _set_config_class($config_class = '', $name = '')
+	{
+		return ! empty($config_class)
+			? $config_class
+			: str_replace(' ', '_', ucwords(str_replace('_', ' ', $name))) . '_Config';
+	}
+
+
+	/**
+	 *    set_config
+	 *
+	 * @access    protected
+	 * @param    string         $section
+	 * @param    string         $name
+	 * @param    string         $config_class
+	 * @param    EE_Config_Base $config_obj
+	 * @return    EE_Config_Base
+	 */
+	public function set_config($section = '', $name = '', $config_class = '', EE_Config_Base $config_obj = null)
+	{
+		// ensure config class is set to something
+		$config_class = $this->_set_config_class($config_class, $name);
+		// run tests 1-4, 6, and 7 to verify all config params are set and valid
+		if (! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
+			return null;
+		}
+		$config_option_name = $this->_generate_config_option_name($section, $name);
+		// if the config option name hasn't been added yet to the list of option names we're tracking, then do so now
+		if (! isset($this->_addon_option_names[ $config_option_name ])) {
+			$this->_addon_option_names[ $config_option_name ] = $config_class;
+			$this->update_addon_option_names();
+		}
+		// verify the incoming config object but suppress errors
+		if (! $this->_verify_config_params($section, $name, $config_class, $config_obj, array(9), false)) {
+			$config_obj = new $config_class();
+		}
+		if (get_option($config_option_name)) {
+			EE_Config::log($config_option_name);
+			update_option($config_option_name, $config_obj);
+			$this->{$section}->{$name} = $config_obj;
+			return $this->{$section}->{$name};
+		} else {
+			// create a wp-option for this config
+			if (add_option($config_option_name, $config_obj, '', 'no')) {
+				$this->{$section}->{$name} = maybe_unserialize($config_obj);
+				return $this->{$section}->{$name};
+			} else {
+				EE_Error::add_error(
+					sprintf(__('The "%s" could not be saved to the database.', 'event_espresso'), $config_class),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return null;
+			}
+		}
+	}
+
+
+	/**
+	 *    update_config
+	 * Important: the config object must ALREADY be set, otherwise this will produce an error.
+	 *
+	 * @access    public
+	 * @param    string                $section
+	 * @param    string                $name
+	 * @param    EE_Config_Base|string $config_obj
+	 * @param    bool                  $throw_errors
+	 * @return    bool
+	 */
+	public function update_config($section = '', $name = '', $config_obj = '', $throw_errors = true)
+	{
+		// don't allow config updates during WP heartbeats
+		if (\EE_Registry::instance()->REQ->get('action', '') === 'heartbeat') {
+			return false;
+		}
+		$config_obj = maybe_unserialize($config_obj);
+		// get class name of the incoming object
+		$config_class = get_class($config_obj);
+		// run tests 1-5 and 9 to verify config
+		if (! $this->_verify_config_params(
+			$section,
+			$name,
+			$config_class,
+			$config_obj,
+			array(1, 2, 3, 4, 7, 9)
+		)
+		) {
+			return false;
+		}
+		$config_option_name = $this->_generate_config_option_name($section, $name);
+		// check if config object has been added to db by seeing if config option name is in $this->_addon_option_names array
+		if (! isset($this->_addon_option_names[ $config_option_name ])) {
+			// save new config to db
+			if ($this->set_config($section, $name, $config_class, $config_obj)) {
+				return true;
+			}
+		} else {
+			// first check if the record already exists
+			$existing_config = get_option($config_option_name);
+			$config_obj = serialize($config_obj);
+			// just return if db record is already up to date (NOT type safe comparison)
+			if ($existing_config == $config_obj) {
+				$this->{$section}->{$name} = $config_obj;
+				return true;
+			} elseif (update_option($config_option_name, $config_obj)) {
+				EE_Config::log($config_option_name);
+				// update wp-option for this config class
+				$this->{$section}->{$name} = $config_obj;
+				return true;
+			} elseif ($throw_errors) {
+				EE_Error::add_error(
+					sprintf(
+						__(
+							'The "%1$s" object stored at"%2$s" was not successfully updated in the database.',
+							'event_espresso'
+						),
+						$config_class,
+						'EE_Config->' . $section . '->' . $name
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		}
+		return false;
+	}
+
+
+	/**
+	 *    get_config
+	 *
+	 * @access    public
+	 * @param    string $section
+	 * @param    string $name
+	 * @param    string $config_class
+	 * @return    mixed EE_Config_Base | NULL
+	 */
+	public function get_config($section = '', $name = '', $config_class = '')
+	{
+		// ensure config class is set to something
+		$config_class = $this->_set_config_class($config_class, $name);
+		// run tests 1-4, 6 and 7 to verify that all params have been set
+		if (! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
+			return null;
+		}
+		// now test if the requested config object exists, but suppress errors
+		if ($this->_verify_config_params($section, $name, $config_class, null, array(7, 8), false)) {
+			// config already exists, so pass it back
+			return $this->{$section}->{$name};
+		}
+		// load config option from db if it exists
+		$config_obj = $this->get_config_option($this->_generate_config_option_name($section, $name));
+		// verify the newly retrieved config object, but suppress errors
+		if ($this->_verify_config_params($section, $name, $config_class, $config_obj, array(9), false)) {
+			// config is good, so set it and pass it back
+			$this->{$section}->{$name} = $config_obj;
+			return $this->{$section}->{$name};
+		}
+		// oops! $config_obj is not already set and does not exist in the db, so create a new one
+		$config_obj = $this->set_config($section, $name, $config_class);
+		// verify the newly created config object
+		if ($this->_verify_config_params($section, $name, $config_class, $config_obj, array(9))) {
+			return $this->{$section}->{$name};
+		} else {
+			EE_Error::add_error(
+				sprintf(__('The "%s" could not be retrieved from the database.', 'event_espresso'), $config_class),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		return null;
+	}
+
+
+	/**
+	 *    get_config_option
+	 *
+	 * @access    public
+	 * @param    string $config_option_name
+	 * @return    mixed EE_Config_Base | FALSE
+	 */
+	public function get_config_option($config_option_name = '')
+	{
+		// retrieve the wp-option for this config class.
+		$config_option = maybe_unserialize(get_option($config_option_name, array()));
+		if (empty($config_option)) {
+			EE_Config::log($config_option_name . '-NOT-FOUND');
+		}
+		return $config_option;
+	}
+
+
+	/**
+	 * log
+	 *
+	 * @param string $config_option_name
+	 */
+	public static function log($config_option_name = '')
+	{
+		if (EE_Config::logging_enabled() && ! empty($config_option_name)) {
+			$config_log = get_option(EE_Config::LOG_NAME, array());
+			// copy incoming $_REQUEST and sanitize it so we can save it
+			$_request = $_REQUEST;
+			array_walk_recursive($_request, 'sanitize_text_field');
+			$config_log[ (string) microtime(true) ] = array(
+				'config_name' => $config_option_name,
+				'request'     => $_request,
+			);
+			update_option(EE_Config::LOG_NAME, $config_log);
+		}
+	}
+
+
+	/**
+	 * trim_log
+	 * reduces the size of the config log to the length specified by EE_Config::LOG_LENGTH
+	 */
+	public static function trim_log()
+	{
+		if (! EE_Config::logging_enabled()) {
+			return;
+		}
+		$config_log = maybe_unserialize(get_option(EE_Config::LOG_NAME, array()));
+		$log_length = count($config_log);
+		if ($log_length > EE_Config::LOG_LENGTH) {
+			ksort($config_log);
+			$config_log = array_slice($config_log, $log_length - EE_Config::LOG_LENGTH, null, true);
+			update_option(EE_Config::LOG_NAME, $config_log);
+		}
+	}
+
+
+	/**
+	 *    get_page_for_posts
+	 *    if the wp-option "show_on_front" is set to "page", then this is the post_name for the post set in the
+	 *    wp-option "page_for_posts", or "posts" if no page is selected
+	 *
+	 * @access    public
+	 * @return    string
+	 */
+	public static function get_page_for_posts()
+	{
+		$page_for_posts = get_option('page_for_posts');
+		if (! $page_for_posts) {
+			return 'posts';
+		}
+		/** @type WPDB $wpdb */
+		global $wpdb;
+		$SQL = "SELECT post_name from $wpdb->posts WHERE post_type='posts' OR post_type='page' AND post_status='publish' AND ID=%d";
+		return $wpdb->get_var($wpdb->prepare($SQL, $page_for_posts));
+	}
+
+
+	/**
+	 *    register_shortcodes_and_modules.
+	 *    At this point, it's too early to tell if we're maintenance mode or not.
+	 *    In fact, this is where we give modules a chance to let core know they exist
+	 *    so they can help trigger maintenance mode if it's needed
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function register_shortcodes_and_modules()
+	{
+		// allow modules to set hooks for the rest of the system
+		EE_Registry::instance()->modules = $this->_register_modules();
+	}
+
+
+	/**
+	 *    initialize_shortcodes_and_modules
+	 *    meaning they can start adding their hooks to get stuff done
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function initialize_shortcodes_and_modules()
+	{
+		// allow modules to set hooks for the rest of the system
+		$this->_initialize_modules();
+	}
+
+
+	/**
+	 *    widgets_init
+	 *
+	 * @access private
+	 * @return void
+	 */
+	public function widgets_init()
+	{
+		// only init widgets on admin pages when not in complete maintenance, and
+		// on frontend when not in any maintenance mode
+		if (! EE_Maintenance_Mode::instance()->level()
+			|| (
+				is_admin()
+				&& EE_Maintenance_Mode::instance()->level() !== EE_Maintenance_Mode::level_2_complete_maintenance
+			)
+		) {
+			// grab list of installed widgets
+			$widgets_to_register = glob(EE_WIDGETS . '*', GLOB_ONLYDIR);
+			// filter list of modules to register
+			$widgets_to_register = apply_filters(
+				'FHEE__EE_Config__register_widgets__widgets_to_register',
+				$widgets_to_register
+			);
+			if (! empty($widgets_to_register)) {
+				// cycle thru widget folders
+				foreach ($widgets_to_register as $widget_path) {
+					// add to list of installed widget modules
+					EE_Config::register_ee_widget($widget_path);
+				}
+			}
+			// filter list of installed modules
+			EE_Registry::instance()->widgets = apply_filters(
+				'FHEE__EE_Config__register_widgets__installed_widgets',
+				EE_Registry::instance()->widgets
+			);
+		}
+	}
+
+
+	/**
+	 *    register_ee_widget - makes core aware of this widget
+	 *
+	 * @access    public
+	 * @param    string $widget_path - full path up to and including widget folder
+	 * @return    void
+	 */
+	public static function register_ee_widget($widget_path = null)
+	{
+		do_action('AHEE__EE_Config__register_widget__begin', $widget_path);
+		$widget_ext = '.widget.php';
+		// make all separators match
+		$widget_path = rtrim(str_replace('/\\', DS, $widget_path), DS);
+		// does the file path INCLUDE the actual file name as part of the path ?
+		if (strpos($widget_path, $widget_ext) !== false) {
+			// grab and shortcode file name from directory name and break apart at dots
+			$file_name = explode('.', basename($widget_path));
+			// take first segment from file name pieces and remove class prefix if it exists
+			$widget = strpos($file_name[0], 'EEW_') === 0 ? substr($file_name[0], 4) : $file_name[0];
+			// sanitize shortcode directory name
+			$widget = sanitize_key($widget);
+			// now we need to rebuild the shortcode path
+			$widget_path = explode(DS, $widget_path);
+			// remove last segment
+			array_pop($widget_path);
+			// glue it back together
+			$widget_path = implode(DS, $widget_path);
+		} else {
+			// grab and sanitize widget directory name
+			$widget = sanitize_key(basename($widget_path));
+		}
+		// create classname from widget directory name
+		$widget = str_replace(' ', '_', ucwords(str_replace('_', ' ', $widget)));
+		// add class prefix
+		$widget_class = 'EEW_' . $widget;
+		// does the widget exist ?
+		if (! is_readable($widget_path . DS . $widget_class . $widget_ext)) {
+			$msg = sprintf(
+				__(
+					'The requested %s widget file could not be found or is not readable due to file permissions. Please ensure the following path is correct: %s',
+					'event_espresso'
+				),
+				$widget_class,
+				$widget_path . DS . $widget_class . $widget_ext
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return;
+		}
+		// load the widget class file
+		require_once($widget_path . DS . $widget_class . $widget_ext);
+		// verify that class exists
+		if (! class_exists($widget_class)) {
+			$msg = sprintf(__('The requested %s widget class does not exist.', 'event_espresso'), $widget_class);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return;
+		}
+		register_widget($widget_class);
+		// add to array of registered widgets
+		EE_Registry::instance()->widgets->{$widget_class} = $widget_path . DS . $widget_class . $widget_ext;
+	}
+
+
+	/**
+	 *        _register_modules
+	 *
+	 * @access private
+	 * @return array
+	 */
+	private function _register_modules()
+	{
+		// grab list of installed modules
+		$modules_to_register = glob(EE_MODULES . '*', GLOB_ONLYDIR);
+		// filter list of modules to register
+		$modules_to_register = apply_filters(
+			'FHEE__EE_Config__register_modules__modules_to_register',
+			$modules_to_register
+		);
+		if (! empty($modules_to_register)) {
+			// loop through folders
+			foreach ($modules_to_register as $module_path) {
+				/**TEMPORARILY EXCLUDE gateways from modules for time being**/
+				if ($module_path !== EE_MODULES . 'zzz-copy-this-module-template'
+					&& $module_path !== EE_MODULES . 'gateways'
+				) {
+					// add to list of installed modules
+					EE_Config::register_module($module_path);
+				}
+			}
+		}
+		// filter list of installed modules
+		return apply_filters(
+			'FHEE__EE_Config___register_modules__installed_modules',
+			EE_Registry::instance()->modules
+		);
+	}
+
+
+	/**
+	 *    register_module - makes core aware of this module
+	 *
+	 * @access    public
+	 * @param    string $module_path - full path up to and including module folder
+	 * @return    bool
+	 */
+	public static function register_module($module_path = null)
+	{
+		do_action('AHEE__EE_Config__register_module__begin', $module_path);
+		$module_ext = '.module.php';
+		// make all separators match
+		$module_path = str_replace(array('\\', '/'), DS, $module_path);
+		// does the file path INCLUDE the actual file name as part of the path ?
+		if (strpos($module_path, $module_ext) !== false) {
+			// grab and shortcode file name from directory name and break apart at dots
+			$module_file = explode('.', basename($module_path));
+			// now we need to rebuild the shortcode path
+			$module_path = explode(DS, $module_path);
+			// remove last segment
+			array_pop($module_path);
+			// glue it back together
+			$module_path = implode(DS, $module_path) . DS;
+			// take first segment from file name pieces and sanitize it
+			$module = preg_replace('/[^a-zA-Z0-9_\-]/', '', $module_file[0]);
+			// ensure class prefix is added
+			$module_class = strpos($module, 'EED_') !== 0 ? 'EED_' . $module : $module;
+		} else {
+			// we need to generate the filename based off of the folder name
+			// grab and sanitize module name
+			$module = strtolower(basename($module_path));
+			$module = preg_replace('/[^a-z0-9_\-]/', '', $module);
+			// like trailingslashit()
+			$module_path = rtrim($module_path, DS) . DS;
+			// create classname from module directory name
+			$module = str_replace(' ', '_', ucwords(str_replace('_', ' ', $module)));
+			// add class prefix
+			$module_class = 'EED_' . $module;
+		}
+		// does the module exist ?
+		if (! is_readable($module_path . DS . $module_class . $module_ext)) {
+			$msg = sprintf(
+				__(
+					'The requested %s module file could not be found or is not readable due to file permissions.',
+					'event_espresso'
+				),
+				$module
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		// load the module class file
+		require_once($module_path . $module_class . $module_ext);
+		// verify that class exists
+		if (! class_exists($module_class)) {
+			$msg = sprintf(__('The requested %s module class does not exist.', 'event_espresso'), $module_class);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		// add to array of registered modules
+		EE_Registry::instance()->modules->{$module_class} = $module_path . $module_class . $module_ext;
+		do_action(
+			'AHEE__EE_Config__register_module__complete',
+			$module_class,
+			EE_Registry::instance()->modules->{$module_class}
+		);
+		return true;
+	}
+
+
+	/**
+	 *    _initialize_modules
+	 *    allow modules to set hooks for the rest of the system
+	 *
+	 * @access private
+	 * @return void
+	 */
+	private function _initialize_modules()
+	{
+		// cycle thru shortcode folders
+		foreach (EE_Registry::instance()->modules as $module_class => $module_path) {
+			// fire the shortcode class's set_hooks methods in case it needs to hook into other parts of the system
+			// which set hooks ?
+			if (is_admin()) {
+				// fire immediately
+				call_user_func(array($module_class, 'set_hooks_admin'));
+			} else {
+				// delay until other systems are online
+				add_action(
+					'AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons',
+					array($module_class, 'set_hooks')
+				);
+			}
+		}
+	}
+
+
+	/**
+	 *    register_route - adds module method routes to route_map
+	 *
+	 * @access    public
+	 * @param    string $route       - "pretty" public alias for module method
+	 * @param    string $module      - module name (classname without EED_ prefix)
+	 * @param    string $method_name - the actual module method to be routed to
+	 * @param    string $key         - url param key indicating a route is being called
+	 * @return    bool
+	 */
+	public static function register_route($route = null, $module = null, $method_name = null, $key = 'ee')
+	{
+		do_action('AHEE__EE_Config__register_route__begin', $route, $module, $method_name);
+		$module = str_replace('EED_', '', $module);
+		$module_class = 'EED_' . $module;
+		if (! isset(EE_Registry::instance()->modules->{$module_class})) {
+			$msg = sprintf(__('The module %s has not been registered.', 'event_espresso'), $module);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		if (empty($route)) {
+			$msg = sprintf(__('No route has been supplied.', 'event_espresso'), $route);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		if (! method_exists('EED_' . $module, $method_name)) {
+			$msg = sprintf(
+				__('A valid class method for the %s route has not been supplied.', 'event_espresso'),
+				$route
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		EE_Config::$_module_route_map[ $key ][ $route ] = array('EED_' . $module, $method_name);
+		return true;
+	}
+
+
+	/**
+	 *    get_route - get module method route
+	 *
+	 * @access    public
+	 * @param    string $route - "pretty" public alias for module method
+	 * @param    string $key   - url param key indicating a route is being called
+	 * @return    string
+	 */
+	public static function get_route($route = null, $key = 'ee')
+	{
+		do_action('AHEE__EE_Config__get_route__begin', $route);
+		$route = (string) apply_filters('FHEE__EE_Config__get_route', $route);
+		if (isset(EE_Config::$_module_route_map[ $key ][ $route ])) {
+			return EE_Config::$_module_route_map[ $key ][ $route ];
+		}
+		return null;
+	}
+
+
+	/**
+	 *    get_routes - get ALL module method routes
+	 *
+	 * @access    public
+	 * @return    array
+	 */
+	public static function get_routes()
+	{
+		return EE_Config::$_module_route_map;
+	}
+
+
+	/**
+	 *    register_forward - allows modules to forward request to another module for further processing
+	 *
+	 * @access    public
+	 * @param    string       $route   - "pretty" public alias for module method
+	 * @param    integer      $status  - integer value corresponding  to status constant strings set in module parent
+	 *                                 class, allows different forwards to be served based on status
+	 * @param    array|string $forward - function name or array( class, method )
+	 * @param    string       $key     - url param key indicating a route is being called
+	 * @return    bool
+	 */
+	public static function register_forward($route = null, $status = 0, $forward = null, $key = 'ee')
+	{
+		do_action('AHEE__EE_Config__register_forward', $route, $status, $forward);
+		if (! isset(EE_Config::$_module_route_map[ $key ][ $route ]) || empty($route)) {
+			$msg = sprintf(
+				__('The module route %s for this forward has not been registered.', 'event_espresso'),
+				$route
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		if (empty($forward)) {
+			$msg = sprintf(__('No forwarding route has been supplied.', 'event_espresso'), $route);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		if (is_array($forward)) {
+			if (! isset($forward[1])) {
+				$msg = sprintf(
+					__('A class method for the %s forwarding route has not been supplied.', 'event_espresso'),
+					$route
+				);
+				EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+				return false;
+			}
+			if (! method_exists($forward[0], $forward[1])) {
+				$msg = sprintf(
+					__('The class method %s for the %s forwarding route is in invalid.', 'event_espresso'),
+					$forward[1],
+					$route
+				);
+				EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+				return false;
+			}
+		} elseif (! function_exists($forward)) {
+			$msg = sprintf(
+				__('The function %s for the %s forwarding route is in invalid.', 'event_espresso'),
+				$forward,
+				$route
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		EE_Config::$_module_forward_map[ $key ][ $route ][ absint($status) ] = $forward;
+		return true;
+	}
+
+
+	/**
+	 *    get_forward - get forwarding route
+	 *
+	 * @access    public
+	 * @param    string  $route  - "pretty" public alias for module method
+	 * @param    integer $status - integer value corresponding  to status constant strings set in module parent class,
+	 *                           allows different forwards to be served based on status
+	 * @param    string  $key    - url param key indicating a route is being called
+	 * @return    string
+	 */
+	public static function get_forward($route = null, $status = 0, $key = 'ee')
+	{
+		do_action('AHEE__EE_Config__get_forward__begin', $route, $status);
+		if (isset(EE_Config::$_module_forward_map[ $key ][ $route ][ $status ])) {
+			return apply_filters(
+				'FHEE__EE_Config__get_forward',
+				EE_Config::$_module_forward_map[ $key ][ $route ][ $status ],
+				$route,
+				$status
+			);
+		}
+		return null;
+	}
+
+
+	/**
+	 *    register_forward - allows modules to specify different view templates for different method routes and status
+	 *    results
+	 *
+	 * @access    public
+	 * @param    string  $route  - "pretty" public alias for module method
+	 * @param    integer $status - integer value corresponding  to status constant strings set in module parent class,
+	 *                           allows different views to be served based on status
+	 * @param    string  $view
+	 * @param    string  $key    - url param key indicating a route is being called
+	 * @return    bool
+	 */
+	public static function register_view($route = null, $status = 0, $view = null, $key = 'ee')
+	{
+		do_action('AHEE__EE_Config__register_view__begin', $route, $status, $view);
+		if (! isset(EE_Config::$_module_route_map[ $key ][ $route ]) || empty($route)) {
+			$msg = sprintf(
+				__('The module route %s for this view has not been registered.', 'event_espresso'),
+				$route
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		if (! is_readable($view)) {
+			$msg = sprintf(
+				__(
+					'The %s view file could not be found or is not readable due to file permissions.',
+					'event_espresso'
+				),
+				$view
+			);
+			EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		EE_Config::$_module_view_map[ $key ][ $route ][ absint($status) ] = $view;
+		return true;
+	}
+
+
+	/**
+	 *    get_view - get view for route and status
+	 *
+	 * @access    public
+	 * @param    string  $route  - "pretty" public alias for module method
+	 * @param    integer $status - integer value corresponding  to status constant strings set in module parent class,
+	 *                           allows different views to be served based on status
+	 * @param    string  $key    - url param key indicating a route is being called
+	 * @return    string
+	 */
+	public static function get_view($route = null, $status = 0, $key = 'ee')
+	{
+		do_action('AHEE__EE_Config__get_view__begin', $route, $status);
+		if (isset(EE_Config::$_module_view_map[ $key ][ $route ][ $status ])) {
+			return apply_filters(
+				'FHEE__EE_Config__get_view',
+				EE_Config::$_module_view_map[ $key ][ $route ][ $status ],
+				$route,
+				$status
+			);
+		}
+		return null;
+	}
+
+
+	public function update_addon_option_names()
+	{
+		update_option(EE_Config::ADDON_OPTION_NAMES, $this->_addon_option_names);
+	}
+
+
+	public function shutdown()
+	{
+		$this->update_addon_option_names();
+	}
+
+
+	/**
+	 * @return LegacyShortcodesManager
+	 */
+	public static function getLegacyShortcodesManager()
+	{
+
+		if (! EE_Config::instance()->legacy_shortcodes_manager instanceof LegacyShortcodesManager) {
+			EE_Config::instance()->legacy_shortcodes_manager = new LegacyShortcodesManager(
+				EE_Registry::instance()
+			);
+		}
+		return EE_Config::instance()->legacy_shortcodes_manager;
+	}
+
+
+	/**
+	 * register_shortcode - makes core aware of this shortcode
+	 *
+	 * @deprecated 4.9.26
+	 * @param    string $shortcode_path - full path up to and including shortcode folder
+	 * @return    bool
+	 */
+	public static function register_shortcode($shortcode_path = null)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			__(
+				'Usage is deprecated. Use \EventEspresso\core\services\shortcodes\LegacyShortcodesManager::registerShortcode() as direct replacement, or better yet, please see the new \EventEspresso\core\services\shortcodes\ShortcodesManager class.',
+				'event_espresso'
+			),
+			'4.9.26'
+		);
+		return EE_Config::instance()->getLegacyShortcodesManager()->registerShortcode($shortcode_path);
+	}
+}
 
-    /**
-     * ReCaptcha Type
-     *
-     * @var string $recaptcha_type
-     *    options: 'audio', 'image'
-     */
-    public $recaptcha_type;
+/**
+ * Base class used for config classes. These classes should generally not have
+ * magic functions in use, except we'll allow them to magically set and get stuff...
+ * basically, they should just be well-defined stdClasses
+ */
+class EE_Config_Base
+{
 
-    /**
-     * ReCaptcha language
-     *
-     * @var string $recaptcha_language
-     * eg 'en'
-     */
-    public $recaptcha_language;
+	/**
+	 * Utility function for escaping the value of a property and returning.
+	 *
+	 * @param string $property property name (checks to see if exists).
+	 * @return mixed if a detected type found return the escaped value, otherwise just the raw value is returned.
+	 * @throws \EE_Error
+	 */
+	public function get_pretty($property)
+	{
+		if (! property_exists($this, $property)) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'%1$s::get_pretty() has been called with the property %2$s which does not exist on the %1$s config class.',
+						'event_espresso'
+					),
+					get_class($this),
+					$property
+				)
+			);
+		}
+		// just handling escaping of strings for now.
+		if (is_string($this->{$property})) {
+			return stripslashes($this->{$property});
+		}
+		return $this->{$property};
+	}
+
+
+	public function populate()
+	{
+		// grab defaults via a new instance of this class.
+		$class_name = get_class($this);
+		$defaults = new $class_name;
+		// loop through the properties for this class and see if they are set.  If they are NOT, then grab the
+		// default from our $defaults object.
+		foreach (get_object_vars($defaults) as $property => $value) {
+			if ($this->{$property} === null) {
+				$this->{$property} = $value;
+			}
+		}
+		// cleanup
+		unset($defaults);
+	}
+
+
+	/**
+	 *        __isset
+	 *
+	 * @param $a
+	 * @return bool
+	 */
+	public function __isset($a)
+	{
+		return false;
+	}
+
+
+	/**
+	 *        __unset
+	 *
+	 * @param $a
+	 * @return bool
+	 */
+	public function __unset($a)
+	{
+		return false;
+	}
+
+
+	/**
+	 *        __clone
+	 */
+	public function __clone()
+	{
+	}
+
+
+	/**
+	 *        __wakeup
+	 */
+	public function __wakeup()
+	{
+	}
+
+
+	/**
+	 *        __destruct
+	 */
+	public function __destruct()
+	{
+	}
+}
 
-    /**
-     * ReCaptcha public key
-     *
-     * @var string $recaptcha_publickey
-     */
-    public $recaptcha_publickey;
+/**
+ * Class for defining what's in the EE_Config relating to registration settings
+ */
+class EE_Core_Config extends EE_Config_Base
+{
 
-    /**
-     * ReCaptcha private key
-     *
-     * @var string $recaptcha_privatekey
-     */
-    public $recaptcha_privatekey;
+	const OPTION_NAME_UXIP = 'ee_ueip_optin';
+
+
+	public $current_blog_id;
+
+	public $ee_ueip_optin;
+
+	public $ee_ueip_has_notified;
+
+	/**
+	 * Not to be confused with the 4 critical page variables (See
+	 * get_critical_pages_array()), this is just an array of wp posts that have EE
+	 * shortcodes in them. Keys are slugs, values are arrays with only 1 element: where the key is the shortcode
+	 * in the page, and the value is the page's ID. The key 'posts' is basically a duplicate of this same array.
+	 *
+	 * @var array
+	 */
+	public $post_shortcodes;
+
+	public $module_route_map;
+
+	public $module_forward_map;
+
+	public $module_view_map;
+
+	/**
+	 * The next 4 vars are the IDs of critical EE pages.
+	 *
+	 * @var int
+	 */
+	public $reg_page_id;
+
+	public $txn_page_id;
+
+	public $thank_you_page_id;
+
+	public $cancel_page_id;
+
+	/**
+	 * The next 4 vars are the URLs of critical EE pages.
+	 *
+	 * @var int
+	 */
+	public $reg_page_url;
+
+	public $txn_page_url;
+
+	public $thank_you_page_url;
+
+	public $cancel_page_url;
+
+	/**
+	 * The next vars relate to the custom slugs for EE CPT routes
+	 */
+	public $event_cpt_slug;
+
+	/**
+	 * This caches the _ee_ueip_option in case this config is reset in the same
+	 * request across blog switches in a multisite context.
+	 * Avoids extra queries to the db for this option.
+	 *
+	 * @var bool
+	 */
+	public static $ee_ueip_option;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		// set default organization settings
+		$this->current_blog_id = get_current_blog_id();
+		$this->current_blog_id = $this->current_blog_id === null ? 1 : $this->current_blog_id;
+		$this->ee_ueip_optin = $this->_get_main_ee_ueip_optin();
+		$this->ee_ueip_has_notified = is_main_site() ? get_option('ee_ueip_has_notified', false) : true;
+		$this->post_shortcodes = array();
+		$this->module_route_map = array();
+		$this->module_forward_map = array();
+		$this->module_view_map = array();
+		// critical EE page IDs
+		$this->reg_page_id = 0;
+		$this->txn_page_id = 0;
+		$this->thank_you_page_id = 0;
+		$this->cancel_page_id = 0;
+		// critical EE page URLs
+		$this->reg_page_url = '';
+		$this->txn_page_url = '';
+		$this->thank_you_page_url = '';
+		$this->cancel_page_url = '';
+		// cpt slugs
+		$this->event_cpt_slug = __('events', 'event_espresso');
+		// ueip constant check
+		if (defined('EE_DISABLE_UXIP') && EE_DISABLE_UXIP) {
+			$this->ee_ueip_optin = false;
+			$this->ee_ueip_has_notified = true;
+		}
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function get_critical_pages_array()
+	{
+		return array(
+			$this->reg_page_id,
+			$this->txn_page_id,
+			$this->thank_you_page_id,
+			$this->cancel_page_id,
+		);
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function get_critical_pages_shortcodes_array()
+	{
+		return array(
+			$this->reg_page_id       => 'ESPRESSO_CHECKOUT',
+			$this->txn_page_id       => 'ESPRESSO_TXN_PAGE',
+			$this->thank_you_page_id => 'ESPRESSO_THANK_YOU',
+			$this->cancel_page_id    => 'ESPRESSO_CANCELLED',
+		);
+	}
+
+
+	/**
+	 *  gets/returns URL for EE reg_page
+	 *
+	 * @access    public
+	 * @return    string
+	 */
+	public function reg_page_url()
+	{
+		if (! $this->reg_page_url) {
+			$this->reg_page_url = add_query_arg(
+				array('uts' => time()),
+				get_permalink($this->reg_page_id)
+			) . '#checkout';
+		}
+		return $this->reg_page_url;
+	}
+
+
+	/**
+	 *  gets/returns URL for EE txn_page
+	 *
+	 * @param array $query_args like what gets passed to
+	 *                          add_query_arg() as the first argument
+	 * @access    public
+	 * @return    string
+	 */
+	public function txn_page_url($query_args = array())
+	{
+		if (! $this->txn_page_url) {
+			$this->txn_page_url = get_permalink($this->txn_page_id);
+		}
+		if ($query_args) {
+			return add_query_arg($query_args, $this->txn_page_url);
+		} else {
+			return $this->txn_page_url;
+		}
+	}
+
+
+	/**
+	 *  gets/returns URL for EE thank_you_page
+	 *
+	 * @param array $query_args like what gets passed to
+	 *                          add_query_arg() as the first argument
+	 * @access    public
+	 * @return    string
+	 */
+	public function thank_you_page_url($query_args = array())
+	{
+		if (! $this->thank_you_page_url) {
+			$this->thank_you_page_url = get_permalink($this->thank_you_page_id);
+		}
+		if ($query_args) {
+			return add_query_arg($query_args, $this->thank_you_page_url);
+		} else {
+			return $this->thank_you_page_url;
+		}
+	}
+
+
+	/**
+	 *  gets/returns URL for EE cancel_page
+	 *
+	 * @access    public
+	 * @return    string
+	 */
+	public function cancel_page_url()
+	{
+		if (! $this->cancel_page_url) {
+			$this->cancel_page_url = get_permalink($this->cancel_page_id);
+		}
+		return $this->cancel_page_url;
+	}
+
+
+	/**
+	 * Resets all critical page urls to their original state.  Used primarily by the __sleep() magic method currently.
+	 *
+	 * @since 4.7.5
+	 */
+	protected function _reset_urls()
+	{
+		$this->reg_page_url = '';
+		$this->txn_page_url = '';
+		$this->cancel_page_url = '';
+		$this->thank_you_page_url = '';
+	}
+
+
+	/**
+	 * Used to return what the optin value is set for the EE User Experience Program.
+	 * This accounts for multisite and this value being requested for a subsite.  In multisite, the value is set
+	 * on the main site only.
+	 *
+	 * @return bool
+	 */
+	protected function _get_main_ee_ueip_optin()
+	{
+		// if this is the main site then we can just bypass our direct query.
+		if (is_main_site()) {
+			return get_option(self::OPTION_NAME_UXIP, false);
+		}
+		// is this already cached for this request?  If so use it.
+		if (EE_Core_Config::$ee_ueip_option !== null) {
+			return EE_Core_Config::$ee_ueip_option;
+		}
+		global $wpdb;
+		$current_network_main_site = is_multisite() ? get_current_site() : null;
+		$current_main_site_id = ! empty($current_network_main_site) ? $current_network_main_site->blog_id : 1;
+		$option = self::OPTION_NAME_UXIP;
+		// set correct table for query
+		$table_name = $wpdb->get_blog_prefix($current_main_site_id) . 'options';
+		// rather than getting blog option for the $current_main_site_id, we do a direct $wpdb query because
+		// get_blog_option() does a switch_to_blog an that could cause infinite recursion because EE_Core_Config might be
+		// re-constructed on the blog switch.  Note, we are still executing any core wp filters on this option retrieval.
+		// this bit of code is basically a direct copy of get_option without any caching because we are NOT switched to the blog
+		// for the purpose of caching.
+		$pre = apply_filters('pre_option_' . $option, false, $option);
+		if (false !== $pre) {
+			EE_Core_Config::$ee_ueip_option = $pre;
+			return EE_Core_Config::$ee_ueip_option;
+		}
+		$row = $wpdb->get_row(
+			$wpdb->prepare(
+				"SELECT option_value FROM $table_name WHERE option_name = %s LIMIT 1",
+				$option
+			)
+		);
+		if (is_object($row)) {
+			$value = $row->option_value;
+		} else { // option does not exist so use default.
+			EE_Core_Config::$ee_ueip_option =  apply_filters('default_option_' . $option, false, $option);
+			return EE_Core_Config::$ee_ueip_option;
+		}
+		EE_Core_Config::$ee_ueip_option = apply_filters('option_' . $option, maybe_unserialize($value), $option);
+		return EE_Core_Config::$ee_ueip_option;
+	}
+
+
+	/**
+	 * Utility function for escaping the value of a property and returning.
+	 *
+	 * @param string $property property name (checks to see if exists).
+	 * @return mixed if a detected type found return the escaped value, otherwise just the raw value is returned.
+	 * @throws \EE_Error
+	 */
+	public function get_pretty($property)
+	{
+		if ($property === self::OPTION_NAME_UXIP) {
+			return $this->ee_ueip_optin ? 'yes' : 'no';
+		}
+		return parent::get_pretty($property);
+	}
+
+
+	/**
+	 * Currently used to ensure critical page urls have initial values saved to the db instead of any current set values
+	 * on the object.
+	 *
+	 * @return array
+	 */
+	public function __sleep()
+	{
+		// reset all url properties
+		$this->_reset_urls();
+		// return what to save to db
+		return array_keys(get_object_vars($this));
+	}
+}
 
-    /**
-     * array of form names protected by ReCaptcha
-     *
-     * @var array $recaptcha_protected_forms
-     */
-    public $recaptcha_protected_forms;
+/**
+ * Config class for storing info on the Organization
+ */
+class EE_Organization_Config extends EE_Config_Base
+{
 
-    /**
-     * ReCaptcha width
-     *
-     * @var int $recaptcha_width
-     * @deprecated
-     */
-    public $recaptcha_width;
+	/**
+	 * @var string $name
+	 * eg EE4.1
+	 */
+	public $name;
+
+	/**
+	 * @var string $address_1
+	 * eg 123 Onna Road
+	 */
+	public $address_1;
+
+	/**
+	 * @var string $address_2
+	 * eg PO Box 123
+	 */
+	public $address_2;
+
+	/**
+	 * @var string $city
+	 * eg Inna City
+	 */
+	public $city;
+
+	/**
+	 * @var int $STA_ID
+	 * eg 4
+	 */
+	public $STA_ID;
+
+	/**
+	 * @var string $CNT_ISO
+	 * eg US
+	 */
+	public $CNT_ISO;
+
+	/**
+	 * @var string $zip
+	 * eg 12345  or V1A 2B3
+	 */
+	public $zip;
+
+	/**
+	 * @var string $email
+	 * eg support@eventespresso.com
+	 */
+	public $email;
+
+	/**
+	 * @var string $phone
+	 * eg. 111-111-1111
+	 */
+	public $phone;
+
+	/**
+	 * @var string $vat
+	 * VAT/Tax Number
+	 */
+	public $vat;
+
+	/**
+	 * @var string $logo_url
+	 * eg http://www.somedomain.com/wp-content/uploads/kittehs.jpg
+	 */
+	public $logo_url;
+
+	/**
+	 * The below are all various properties for holding links to organization social network profiles
+	 *
+	 * @var string
+	 */
+	/**
+	 * facebook (facebook.com/profile.name)
+	 *
+	 * @var string
+	 */
+	public $facebook;
+
+	/**
+	 * twitter (twitter.com/twitter_handle)
+	 *
+	 * @var string
+	 */
+	public $twitter;
+
+	/**
+	 * linkedin (linkedin.com/in/profile_name)
+	 *
+	 * @var string
+	 */
+	public $linkedin;
+
+	/**
+	 * pinterest (www.pinterest.com/profile_name)
+	 *
+	 * @var string
+	 */
+	public $pinterest;
+
+	/**
+	 * google+ (google.com/+profileName)
+	 *
+	 * @var string
+	 */
+	public $google;
+
+	/**
+	 * instagram (instagram.com/handle)
+	 *
+	 * @var string
+	 */
+	public $instagram;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		// set default organization settings
+		// decode HTML entities from the WP blogname, because it's stored in the DB with HTML entities encoded
+		$this->name = wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES);
+		$this->address_1 = '123 Onna Road';
+		$this->address_2 = 'PO Box 123';
+		$this->city = 'Inna City';
+		$this->STA_ID = 4;
+		$this->CNT_ISO = 'US';
+		$this->zip = '12345';
+		$this->email = get_bloginfo('admin_email');
+		$this->phone = '';
+		$this->vat = '123456789';
+		$this->logo_url = '';
+		$this->facebook = '';
+		$this->twitter = '';
+		$this->linkedin = '';
+		$this->pinterest = '';
+		$this->google = '';
+		$this->instagram = '';
+	}
+}
 
-    /**
-     * Whether or not invalid attempts to directly access the registration checkout page should be tracked.
-     *
-     * @var boolean $track_invalid_checkout_access
-     */
-    protected $track_invalid_checkout_access = true;
+/**
+ * Class for defining what's in the EE_Config relating to currency
+ */
+class EE_Currency_Config extends EE_Config_Base
+{
 
-    /**
-     * Whether or not to show the privacy policy consent checkbox
-     *
-     * @var bool
-     */
-    public $consent_checkbox_enabled;
+	/**
+	 * @var string $code
+	 * eg 'US'
+	 */
+	public $code;
+
+	/**
+	 * @var string $name
+	 * eg 'Dollar'
+	 */
+	public $name;
+
+	/**
+	 * plural name
+	 *
+	 * @var string $plural
+	 * eg 'Dollars'
+	 */
+	public $plural;
+
+	/**
+	 * currency sign
+	 *
+	 * @var string $sign
+	 * eg '$'
+	 */
+	public $sign;
+
+	/**
+	 * Whether the currency sign should come before the number or not
+	 *
+	 * @var boolean $sign_b4
+	 */
+	public $sign_b4;
+
+	/**
+	 * How many digits should come after the decimal place
+	 *
+	 * @var int $dec_plc
+	 */
+	public $dec_plc;
+
+	/**
+	 * Symbol to use for decimal mark
+	 *
+	 * @var string $dec_mrk
+	 * eg '.'
+	 */
+	public $dec_mrk;
+
+	/**
+	 * Symbol to use for thousands
+	 *
+	 * @var string $thsnds
+	 * eg ','
+	 */
+	public $thsnds;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 * @param string $CNT_ISO
+	 * @throws \EE_Error
+	 */
+	public function __construct($CNT_ISO = '')
+	{
+		/** @var \EventEspresso\core\services\database\TableAnalysis $table_analysis */
+		$table_analysis = EE_Registry::instance()->create('TableAnalysis', array(), true);
+		// get country code from organization settings or use default
+		$ORG_CNT = isset(EE_Registry::instance()->CFG->organization)
+				   && EE_Registry::instance()->CFG->organization instanceof EE_Organization_Config
+			? EE_Registry::instance()->CFG->organization->CNT_ISO
+			: '';
+		// but override if requested
+		$CNT_ISO = ! empty($CNT_ISO) ? $CNT_ISO : $ORG_CNT;
+		// so if that all went well, and we are not in M-Mode (cuz you can't query the db in M-Mode) and double-check the countries table exists
+		if (! empty($CNT_ISO)
+			&& EE_Maintenance_Mode::instance()->models_can_query()
+			&& $table_analysis->tableExists(EE_Registry::instance()->load_model('Country')->table())
+		) {
+			// retrieve the country settings from the db, just in case they have been customized
+			$country = EE_Registry::instance()->load_model('Country')->get_one_by_ID($CNT_ISO);
+			if ($country instanceof EE_Country) {
+				$this->code = $country->currency_code();    // currency code: USD, CAD, EUR
+				$this->name = $country->currency_name_single();    // Dollar
+				$this->plural = $country->currency_name_plural();    // Dollars
+				$this->sign = $country->currency_sign();            // currency sign: $
+				$this->sign_b4 = $country->currency_sign_before(
+				);        // currency sign before or after: $TRUE  or  FALSE$
+				$this->dec_plc = $country->currency_decimal_places();    // decimal places: 2 = 0.00  3 = 0.000
+				$this->dec_mrk = $country->currency_decimal_mark(
+				);    // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
+				$this->thsnds = $country->currency_thousands_separator(
+				);    // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
+			}
+		}
+		// fallback to hardcoded defaults, in case the above failed
+		if (empty($this->code)) {
+			// set default currency settings
+			$this->code = 'USD';    // currency code: USD, CAD, EUR
+			$this->name = __('Dollar', 'event_espresso');    // Dollar
+			$this->plural = __('Dollars', 'event_espresso');    // Dollars
+			$this->sign = '$';    // currency sign: $
+			$this->sign_b4 = true;    // currency sign before or after: $TRUE  or  FALSE$
+			$this->dec_plc = 2;    // decimal places: 2 = 0.00  3 = 0.000
+			$this->dec_mrk = '.';    // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
+			$this->thsnds = ',';    // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
+		}
+	}
+}
 
-    /**
-     * Label text to show on the checkbox
-     *
-     * @var string
-     */
-    public $consent_checkbox_label_text;
+/**
+ * Class for defining what's in the EE_Config relating to registration settings
+ */
+class EE_Registration_Config extends EE_Config_Base
+{
 
-    /*
+	/**
+	 * Default registration status
+	 *
+	 * @var string $default_STS_ID
+	 * eg 'RPP'
+	 */
+	public $default_STS_ID;
+
+	/**
+	 * For new events, this will be the default value for the maximum number of tickets (equivalent to maximum number of
+	 * registrations)
+	 *
+	 * @var int
+	 */
+	public $default_maximum_number_of_tickets;
+
+	/**
+	 * level of validation to apply to email addresses
+	 *
+	 * @var string $email_validation_level
+	 * options: 'basic', 'wp_default', 'i18n', 'i18n_dns'
+	 */
+	public $email_validation_level;
+
+	/**
+	 *    whether or not to show alternate payment options during the reg process if payment status is pending
+	 *
+	 * @var boolean $show_pending_payment_options
+	 */
+	public $show_pending_payment_options;
+
+	/**
+	 * Whether to skip the registration confirmation page
+	 *
+	 * @var boolean $skip_reg_confirmation
+	 */
+	public $skip_reg_confirmation;
+
+	/**
+	 * an array of SPCO reg steps where:
+	 *        the keys denotes the reg step order
+	 *        each element consists of an array with the following elements:
+	 *            "file_path" => the file path to the EE_SPCO_Reg_Step class
+	 *            "class_name" => the specific EE_SPCO_Reg_Step child class name
+	 *            "slug" => the URL param used to trigger the reg step
+	 *
+	 * @var array $reg_steps
+	 */
+	public $reg_steps;
+
+	/**
+	 * Whether registration confirmation should be the last page of SPCO
+	 *
+	 * @var boolean $reg_confirmation_last
+	 */
+	public $reg_confirmation_last;
+
+	/**
+	 * Whether or not to enable the EE Bot Trap
+	 *
+	 * @var boolean $use_bot_trap
+	 */
+	public $use_bot_trap;
+
+	/**
+	 * Whether or not to encrypt some data sent by the EE Bot Trap
+	 *
+	 * @var boolean $use_encryption
+	 */
+	public $use_encryption;
+
+	/**
+	 * Whether or not to use ReCaptcha
+	 *
+	 * @var boolean $use_captcha
+	 */
+	public $use_captcha;
+
+	/**
+	 * ReCaptcha Theme
+	 *
+	 * @var string $recaptcha_theme
+	 *    options: 'dark', 'light', 'invisible'
+	 */
+	public $recaptcha_theme;
+
+	/**
+	 * ReCaptcha Badge - determines the position of the reCAPTCHA badge if using Invisible ReCaptcha.
+	 *
+	 * @var string $recaptcha_badge
+	 *    options: 'bottomright', 'bottomleft', 'inline'
+	 */
+	public $recaptcha_badge;
+
+	/**
+	 * ReCaptcha Type
+	 *
+	 * @var string $recaptcha_type
+	 *    options: 'audio', 'image'
+	 */
+	public $recaptcha_type;
+
+	/**
+	 * ReCaptcha language
+	 *
+	 * @var string $recaptcha_language
+	 * eg 'en'
+	 */
+	public $recaptcha_language;
+
+	/**
+	 * ReCaptcha public key
+	 *
+	 * @var string $recaptcha_publickey
+	 */
+	public $recaptcha_publickey;
+
+	/**
+	 * ReCaptcha private key
+	 *
+	 * @var string $recaptcha_privatekey
+	 */
+	public $recaptcha_privatekey;
+
+	/**
+	 * array of form names protected by ReCaptcha
+	 *
+	 * @var array $recaptcha_protected_forms
+	 */
+	public $recaptcha_protected_forms;
+
+	/**
+	 * ReCaptcha width
+	 *
+	 * @var int $recaptcha_width
+	 * @deprecated
+	 */
+	public $recaptcha_width;
+
+	/**
+	 * Whether or not invalid attempts to directly access the registration checkout page should be tracked.
+	 *
+	 * @var boolean $track_invalid_checkout_access
+	 */
+	protected $track_invalid_checkout_access = true;
+
+	/**
+	 * Whether or not to show the privacy policy consent checkbox
+	 *
+	 * @var bool
+	 */
+	public $consent_checkbox_enabled;
+
+	/**
+	 * Label text to show on the checkbox
+	 *
+	 * @var string
+	 */
+	public $consent_checkbox_label_text;
+
+	/*
      * String describing how long to keep payment logs. Passed into DateTime constructor
      * @var string
      */
-    public $gateway_log_lifespan = '1 week';
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        // set default registration settings
-        $this->default_STS_ID = EEM_Registration::status_id_pending_payment;
-        $this->email_validation_level = 'wp_default';
-        $this->show_pending_payment_options = true;
-        $this->skip_reg_confirmation = true;
-        $this->reg_steps = array();
-        $this->reg_confirmation_last = false;
-        $this->use_bot_trap = true;
-        $this->use_encryption = true;
-        $this->use_captcha = false;
-        $this->recaptcha_theme = 'light';
-        $this->recaptcha_badge = 'bottomleft';
-        $this->recaptcha_type = 'image';
-        $this->recaptcha_language = 'en';
-        $this->recaptcha_publickey = null;
-        $this->recaptcha_privatekey = null;
-        $this->recaptcha_protected_forms = array();
-        $this->recaptcha_width = 500;
-        $this->default_maximum_number_of_tickets = 10;
-        $this->consent_checkbox_enabled = false;
-        $this->consent_checkbox_label_text = '';
-        $this->gateway_log_lifespan = '7 days';
-    }
-
-
-    /**
-     * This is called by the config loader and hooks are initialized AFTER the config has been populated.
-     *
-     * @since 4.8.8.rc.019
-     */
-    public function do_hooks()
-    {
-        add_action('AHEE__EE_Config___load_core_config__end', array($this, 'set_default_reg_status_on_EEM_Event'));
-        add_action('AHEE__EE_Config___load_core_config__end', array($this, 'set_default_max_ticket_on_EEM_Event'));
-        add_action('setup_theme', array($this, 'setDefaultCheckboxLabelText'));
-    }
-
-
-    /**
-     * Hooked into `AHEE__EE_Config___load_core_config__end` to ensure the default for the
-     * EVT_default_registration_status field matches the config setting for default_STS_ID.
-     */
-    public function set_default_reg_status_on_EEM_Event()
-    {
-        EEM_Event::set_default_reg_status($this->default_STS_ID);
-    }
-
-
-    /**
-     * Hooked into `AHEE__EE_Config___load_core_config__end` to ensure the default for the EVT_additional_limit field
-     * for Events matches the config setting for default_maximum_number_of_tickets
-     */
-    public function set_default_max_ticket_on_EEM_Event()
-    {
-        EEM_Event::set_default_additional_limit($this->default_maximum_number_of_tickets);
-    }
-
-
-    /**
-     * Sets the default consent checkbox text. This needs to be done a bit later than when EE_Registration_Config is
-     * constructed because that happens before we can get the privacy policy page's permalink.
-     *
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function setDefaultCheckboxLabelText()
-    {
-        if ($this->getConsentCheckboxLabelText() === null
-            || $this->getConsentCheckboxLabelText() === '') {
-            $opening_a_tag = '';
-            $closing_a_tag = '';
-            if (function_exists('get_privacy_policy_url')) {
-                $privacy_page_url = get_privacy_policy_url();
-                if (! empty($privacy_page_url)) {
-                    $opening_a_tag = '<a href="' . $privacy_page_url . '" target="_blank">';
-                    $closing_a_tag = '</a>';
-                }
-            }
-            $loader = LoaderFactory::getLoader();
-            $org_config = $loader->getShared('EE_Organization_Config');
-            /**
-             * @var $org_config EE_Organization_Config
-             */
-
-            $this->setConsentCheckboxLabelText(
-                sprintf(
-                    esc_html__(
-                        'I consent to %1$s storing and using my personal information, according to their %2$sprivacy policy%3$s.',
-                        'event_espresso'
-                    ),
-                    $org_config->name,
-                    $opening_a_tag,
-                    $closing_a_tag
-                )
-            );
-        }
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function track_invalid_checkout_access()
-    {
-        return $this->track_invalid_checkout_access;
-    }
-
-
-    /**
-     * @param boolean $track_invalid_checkout_access
-     */
-    public function set_track_invalid_checkout_access($track_invalid_checkout_access)
-    {
-        $this->track_invalid_checkout_access = filter_var(
-            $track_invalid_checkout_access,
-            FILTER_VALIDATE_BOOLEAN
-        );
-    }
-
-
-    /**
-     * Gets the options to make availalbe for the gateway log lifespan
-     * @return array
-     */
-    public function gatewayLogLifespanOptions()
-    {
-        return (array) apply_filters(
-            'FHEE_EE_Admin_Config__gatewayLogLifespanOptions',
-            array(
-                '1 second' => esc_html__('Don\'t Log At All', 'event_espresso'),
-                '1 day' => esc_html__('1 Day', 'event_espresso'),
-                '7 days' => esc_html__('7 Days', 'event_espresso'),
-                '14 days' => esc_html__('14 Days', 'event_espresso'),
-                '30 days' => esc_html__('30 Days', 'event_espresso')
-            )
-        );
-    }
-
-
-    /**
-     * @return bool
-     */
-    public function isConsentCheckboxEnabled()
-    {
-        return $this->consent_checkbox_enabled;
-    }
-
-
-    /**
-     * @param bool $consent_checkbox_enabled
-     */
-    public function setConsentCheckboxEnabled($consent_checkbox_enabled)
-    {
-        $this->consent_checkbox_enabled = filter_var(
-            $consent_checkbox_enabled,
-            FILTER_VALIDATE_BOOLEAN
-        );
-    }
-
-
-    /**
-     * @return string
-     */
-    public function getConsentCheckboxLabelText()
-    {
-        return $this->consent_checkbox_label_text;
-    }
-
-
-    /**
-     * @param string $consent_checkbox_label_text
-     */
-    public function setConsentCheckboxLabelText($consent_checkbox_label_text)
-    {
-        $this->consent_checkbox_label_text = (string) $consent_checkbox_label_text;
-    }
+	public $gateway_log_lifespan = '1 week';
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		// set default registration settings
+		$this->default_STS_ID = EEM_Registration::status_id_pending_payment;
+		$this->email_validation_level = 'wp_default';
+		$this->show_pending_payment_options = true;
+		$this->skip_reg_confirmation = true;
+		$this->reg_steps = array();
+		$this->reg_confirmation_last = false;
+		$this->use_bot_trap = true;
+		$this->use_encryption = true;
+		$this->use_captcha = false;
+		$this->recaptcha_theme = 'light';
+		$this->recaptcha_badge = 'bottomleft';
+		$this->recaptcha_type = 'image';
+		$this->recaptcha_language = 'en';
+		$this->recaptcha_publickey = null;
+		$this->recaptcha_privatekey = null;
+		$this->recaptcha_protected_forms = array();
+		$this->recaptcha_width = 500;
+		$this->default_maximum_number_of_tickets = 10;
+		$this->consent_checkbox_enabled = false;
+		$this->consent_checkbox_label_text = '';
+		$this->gateway_log_lifespan = '7 days';
+	}
+
+
+	/**
+	 * This is called by the config loader and hooks are initialized AFTER the config has been populated.
+	 *
+	 * @since 4.8.8.rc.019
+	 */
+	public function do_hooks()
+	{
+		add_action('AHEE__EE_Config___load_core_config__end', array($this, 'set_default_reg_status_on_EEM_Event'));
+		add_action('AHEE__EE_Config___load_core_config__end', array($this, 'set_default_max_ticket_on_EEM_Event'));
+		add_action('setup_theme', array($this, 'setDefaultCheckboxLabelText'));
+	}
+
+
+	/**
+	 * Hooked into `AHEE__EE_Config___load_core_config__end` to ensure the default for the
+	 * EVT_default_registration_status field matches the config setting for default_STS_ID.
+	 */
+	public function set_default_reg_status_on_EEM_Event()
+	{
+		EEM_Event::set_default_reg_status($this->default_STS_ID);
+	}
+
+
+	/**
+	 * Hooked into `AHEE__EE_Config___load_core_config__end` to ensure the default for the EVT_additional_limit field
+	 * for Events matches the config setting for default_maximum_number_of_tickets
+	 */
+	public function set_default_max_ticket_on_EEM_Event()
+	{
+		EEM_Event::set_default_additional_limit($this->default_maximum_number_of_tickets);
+	}
+
+
+	/**
+	 * Sets the default consent checkbox text. This needs to be done a bit later than when EE_Registration_Config is
+	 * constructed because that happens before we can get the privacy policy page's permalink.
+	 *
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function setDefaultCheckboxLabelText()
+	{
+		if ($this->getConsentCheckboxLabelText() === null
+			|| $this->getConsentCheckboxLabelText() === '') {
+			$opening_a_tag = '';
+			$closing_a_tag = '';
+			if (function_exists('get_privacy_policy_url')) {
+				$privacy_page_url = get_privacy_policy_url();
+				if (! empty($privacy_page_url)) {
+					$opening_a_tag = '<a href="' . $privacy_page_url . '" target="_blank">';
+					$closing_a_tag = '</a>';
+				}
+			}
+			$loader = LoaderFactory::getLoader();
+			$org_config = $loader->getShared('EE_Organization_Config');
+			/**
+			 * @var $org_config EE_Organization_Config
+			 */
+
+			$this->setConsentCheckboxLabelText(
+				sprintf(
+					esc_html__(
+						'I consent to %1$s storing and using my personal information, according to their %2$sprivacy policy%3$s.',
+						'event_espresso'
+					),
+					$org_config->name,
+					$opening_a_tag,
+					$closing_a_tag
+				)
+			);
+		}
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function track_invalid_checkout_access()
+	{
+		return $this->track_invalid_checkout_access;
+	}
+
+
+	/**
+	 * @param boolean $track_invalid_checkout_access
+	 */
+	public function set_track_invalid_checkout_access($track_invalid_checkout_access)
+	{
+		$this->track_invalid_checkout_access = filter_var(
+			$track_invalid_checkout_access,
+			FILTER_VALIDATE_BOOLEAN
+		);
+	}
+
+
+	/**
+	 * Gets the options to make availalbe for the gateway log lifespan
+	 * @return array
+	 */
+	public function gatewayLogLifespanOptions()
+	{
+		return (array) apply_filters(
+			'FHEE_EE_Admin_Config__gatewayLogLifespanOptions',
+			array(
+				'1 second' => esc_html__('Don\'t Log At All', 'event_espresso'),
+				'1 day' => esc_html__('1 Day', 'event_espresso'),
+				'7 days' => esc_html__('7 Days', 'event_espresso'),
+				'14 days' => esc_html__('14 Days', 'event_espresso'),
+				'30 days' => esc_html__('30 Days', 'event_espresso')
+			)
+		);
+	}
+
+
+	/**
+	 * @return bool
+	 */
+	public function isConsentCheckboxEnabled()
+	{
+		return $this->consent_checkbox_enabled;
+	}
+
+
+	/**
+	 * @param bool $consent_checkbox_enabled
+	 */
+	public function setConsentCheckboxEnabled($consent_checkbox_enabled)
+	{
+		$this->consent_checkbox_enabled = filter_var(
+			$consent_checkbox_enabled,
+			FILTER_VALIDATE_BOOLEAN
+		);
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function getConsentCheckboxLabelText()
+	{
+		return $this->consent_checkbox_label_text;
+	}
+
+
+	/**
+	 * @param string $consent_checkbox_label_text
+	 */
+	public function setConsentCheckboxLabelText($consent_checkbox_label_text)
+	{
+		$this->consent_checkbox_label_text = (string) $consent_checkbox_label_text;
+	}
 }
 
 /**
@@ -2540,154 +2540,154 @@ 
 class EE_Admin_Config extends EE_Config_Base
 {
 
-    /**
-     * @var boolean $use_personnel_manager
-     */
-    public $use_personnel_manager;
-
-    /**
-     * @var boolean $use_dashboard_widget
-     */
-    public $use_dashboard_widget;
-
-    /**
-     * @var int $events_in_dashboard
-     */
-    public $events_in_dashboard;
-
-    /**
-     * @var boolean $use_event_timezones
-     */
-    public $use_event_timezones;
-
-    /**
-     * @var boolean $use_full_logging
-     */
-    public $use_full_logging;
-
-    /**
-     * @var string $log_file_name
-     */
-    public $log_file_name;
-
-    /**
-     * @var string $debug_file_name
-     */
-    public $debug_file_name;
-
-    /**
-     * @var boolean $use_remote_logging
-     */
-    public $use_remote_logging;
-
-    /**
-     * @var string $remote_logging_url
-     */
-    public $remote_logging_url;
-
-    /**
-     * @var boolean $show_reg_footer
-     */
-    public $show_reg_footer;
-
-    /**
-     * @var string $affiliate_id
-     */
-    public $affiliate_id;
-
-    /**
-     * help tours on or off (global setting)
-     *
-     * @var boolean
-     */
-    public $help_tour_activation;
-
-    /**
-     * adds extra layer of encoding to session data to prevent serialization errors
-     * but is incompatible with some server configuration errors
-     * if you get "500 internal server errors" during registration, try turning this on
-     * if you get PHP fatal errors regarding base 64 methods not defined, then turn this off
-     *
-     * @var boolean $encode_session_data
-     */
-    private $encode_session_data = false;
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        // set default general admin settings
-        $this->use_personnel_manager = true;
-        $this->use_dashboard_widget = true;
-        $this->events_in_dashboard = 30;
-        $this->use_event_timezones = false;
-        $this->use_full_logging = false;
-        $this->use_remote_logging = false;
-        $this->remote_logging_url = null;
-        $this->show_reg_footer = true;
-        $this->affiliate_id = 'default';
-        $this->help_tour_activation = true;
-        $this->encode_session_data = false;
-    }
-
-
-    /**
-     * @param bool $reset
-     * @return string
-     */
-    public function log_file_name($reset = false)
-    {
-        if (empty($this->log_file_name) || $reset) {
-            $this->log_file_name = sanitize_key('espresso_log_' . md5(uniqid('', true))) . '.txt';
-            EE_Config::instance()->update_espresso_config(false, false);
-        }
-        return $this->log_file_name;
-    }
-
-
-    /**
-     * @param bool $reset
-     * @return string
-     */
-    public function debug_file_name($reset = false)
-    {
-        if (empty($this->debug_file_name) || $reset) {
-            $this->debug_file_name = sanitize_key('espresso_debug_' . md5(uniqid('', true))) . '.txt';
-            EE_Config::instance()->update_espresso_config(false, false);
-        }
-        return $this->debug_file_name;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function affiliate_id()
-    {
-        return ! empty($this->affiliate_id) ? $this->affiliate_id : 'default';
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function encode_session_data()
-    {
-        return filter_var($this->encode_session_data, FILTER_VALIDATE_BOOLEAN);
-    }
-
-
-    /**
-     * @param boolean $encode_session_data
-     */
-    public function set_encode_session_data($encode_session_data)
-    {
-        $this->encode_session_data = filter_var($encode_session_data, FILTER_VALIDATE_BOOLEAN);
-    }
+	/**
+	 * @var boolean $use_personnel_manager
+	 */
+	public $use_personnel_manager;
+
+	/**
+	 * @var boolean $use_dashboard_widget
+	 */
+	public $use_dashboard_widget;
+
+	/**
+	 * @var int $events_in_dashboard
+	 */
+	public $events_in_dashboard;
+
+	/**
+	 * @var boolean $use_event_timezones
+	 */
+	public $use_event_timezones;
+
+	/**
+	 * @var boolean $use_full_logging
+	 */
+	public $use_full_logging;
+
+	/**
+	 * @var string $log_file_name
+	 */
+	public $log_file_name;
+
+	/**
+	 * @var string $debug_file_name
+	 */
+	public $debug_file_name;
+
+	/**
+	 * @var boolean $use_remote_logging
+	 */
+	public $use_remote_logging;
+
+	/**
+	 * @var string $remote_logging_url
+	 */
+	public $remote_logging_url;
+
+	/**
+	 * @var boolean $show_reg_footer
+	 */
+	public $show_reg_footer;
+
+	/**
+	 * @var string $affiliate_id
+	 */
+	public $affiliate_id;
+
+	/**
+	 * help tours on or off (global setting)
+	 *
+	 * @var boolean
+	 */
+	public $help_tour_activation;
+
+	/**
+	 * adds extra layer of encoding to session data to prevent serialization errors
+	 * but is incompatible with some server configuration errors
+	 * if you get "500 internal server errors" during registration, try turning this on
+	 * if you get PHP fatal errors regarding base 64 methods not defined, then turn this off
+	 *
+	 * @var boolean $encode_session_data
+	 */
+	private $encode_session_data = false;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		// set default general admin settings
+		$this->use_personnel_manager = true;
+		$this->use_dashboard_widget = true;
+		$this->events_in_dashboard = 30;
+		$this->use_event_timezones = false;
+		$this->use_full_logging = false;
+		$this->use_remote_logging = false;
+		$this->remote_logging_url = null;
+		$this->show_reg_footer = true;
+		$this->affiliate_id = 'default';
+		$this->help_tour_activation = true;
+		$this->encode_session_data = false;
+	}
+
+
+	/**
+	 * @param bool $reset
+	 * @return string
+	 */
+	public function log_file_name($reset = false)
+	{
+		if (empty($this->log_file_name) || $reset) {
+			$this->log_file_name = sanitize_key('espresso_log_' . md5(uniqid('', true))) . '.txt';
+			EE_Config::instance()->update_espresso_config(false, false);
+		}
+		return $this->log_file_name;
+	}
+
+
+	/**
+	 * @param bool $reset
+	 * @return string
+	 */
+	public function debug_file_name($reset = false)
+	{
+		if (empty($this->debug_file_name) || $reset) {
+			$this->debug_file_name = sanitize_key('espresso_debug_' . md5(uniqid('', true))) . '.txt';
+			EE_Config::instance()->update_espresso_config(false, false);
+		}
+		return $this->debug_file_name;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function affiliate_id()
+	{
+		return ! empty($this->affiliate_id) ? $this->affiliate_id : 'default';
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function encode_session_data()
+	{
+		return filter_var($this->encode_session_data, FILTER_VALIDATE_BOOLEAN);
+	}
+
+
+	/**
+	 * @param boolean $encode_session_data
+	 */
+	public function set_encode_session_data($encode_session_data)
+	{
+		$this->encode_session_data = filter_var($encode_session_data, FILTER_VALIDATE_BOOLEAN);
+	}
 }
 
 /**
@@ -2696,70 +2696,70 @@ 
 class EE_Template_Config extends EE_Config_Base
 {
 
-    /**
-     * @var boolean $enable_default_style
-     */
-    public $enable_default_style;
-
-    /**
-     * @var string $custom_style_sheet
-     */
-    public $custom_style_sheet;
-
-    /**
-     * @var boolean $display_address_in_regform
-     */
-    public $display_address_in_regform;
-
-    /**
-     * @var int $display_description_on_multi_reg_page
-     */
-    public $display_description_on_multi_reg_page;
-
-    /**
-     * @var boolean $use_custom_templates
-     */
-    public $use_custom_templates;
-
-    /**
-     * @var string $current_espresso_theme
-     */
-    public $current_espresso_theme;
-
-    /**
-     * @var EE_Ticket_Selector_Config $EED_Ticket_Selector
-     */
-    public $EED_Ticket_Selector;
-
-    /**
-     * @var EE_Event_Single_Config $EED_Event_Single
-     */
-    public $EED_Event_Single;
-
-    /**
-     * @var EE_Events_Archive_Config $EED_Events_Archive
-     */
-    public $EED_Events_Archive;
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        // set default template settings
-        $this->enable_default_style = true;
-        $this->custom_style_sheet = null;
-        $this->display_address_in_regform = true;
-        $this->display_description_on_multi_reg_page = false;
-        $this->use_custom_templates = false;
-        $this->current_espresso_theme = 'Espresso_Arabica_2014';
-        $this->EED_Event_Single = null;
-        $this->EED_Events_Archive = null;
-        $this->EED_Ticket_Selector = null;
-    }
+	/**
+	 * @var boolean $enable_default_style
+	 */
+	public $enable_default_style;
+
+	/**
+	 * @var string $custom_style_sheet
+	 */
+	public $custom_style_sheet;
+
+	/**
+	 * @var boolean $display_address_in_regform
+	 */
+	public $display_address_in_regform;
+
+	/**
+	 * @var int $display_description_on_multi_reg_page
+	 */
+	public $display_description_on_multi_reg_page;
+
+	/**
+	 * @var boolean $use_custom_templates
+	 */
+	public $use_custom_templates;
+
+	/**
+	 * @var string $current_espresso_theme
+	 */
+	public $current_espresso_theme;
+
+	/**
+	 * @var EE_Ticket_Selector_Config $EED_Ticket_Selector
+	 */
+	public $EED_Ticket_Selector;
+
+	/**
+	 * @var EE_Event_Single_Config $EED_Event_Single
+	 */
+	public $EED_Event_Single;
+
+	/**
+	 * @var EE_Events_Archive_Config $EED_Events_Archive
+	 */
+	public $EED_Events_Archive;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		// set default template settings
+		$this->enable_default_style = true;
+		$this->custom_style_sheet = null;
+		$this->display_address_in_regform = true;
+		$this->display_description_on_multi_reg_page = false;
+		$this->use_custom_templates = false;
+		$this->current_espresso_theme = 'Espresso_Arabica_2014';
+		$this->EED_Event_Single = null;
+		$this->EED_Events_Archive = null;
+		$this->EED_Ticket_Selector = null;
+	}
 }
 
 /**
@@ -2768,114 +2768,114 @@ 
 class EE_Map_Config extends EE_Config_Base
 {
 
-    /**
-     * @var boolean $use_google_maps
-     */
-    public $use_google_maps;
-
-    /**
-     * @var string $api_key
-     */
-    public $google_map_api_key;
-
-    /**
-     * @var int $event_details_map_width
-     */
-    public $event_details_map_width;
-
-    /**
-     * @var int $event_details_map_height
-     */
-    public $event_details_map_height;
-
-    /**
-     * @var int $event_details_map_zoom
-     */
-    public $event_details_map_zoom;
-
-    /**
-     * @var boolean $event_details_display_nav
-     */
-    public $event_details_display_nav;
-
-    /**
-     * @var boolean $event_details_nav_size
-     */
-    public $event_details_nav_size;
-
-    /**
-     * @var string $event_details_control_type
-     */
-    public $event_details_control_type;
-
-    /**
-     * @var string $event_details_map_align
-     */
-    public $event_details_map_align;
-
-    /**
-     * @var int $event_list_map_width
-     */
-    public $event_list_map_width;
-
-    /**
-     * @var int $event_list_map_height
-     */
-    public $event_list_map_height;
-
-    /**
-     * @var int $event_list_map_zoom
-     */
-    public $event_list_map_zoom;
-
-    /**
-     * @var boolean $event_list_display_nav
-     */
-    public $event_list_display_nav;
-
-    /**
-     * @var boolean $event_list_nav_size
-     */
-    public $event_list_nav_size;
-
-    /**
-     * @var string $event_list_control_type
-     */
-    public $event_list_control_type;
-
-    /**
-     * @var string $event_list_map_align
-     */
-    public $event_list_map_align;
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        // set default map settings
-        $this->use_google_maps = true;
-        $this->google_map_api_key = '';
-        // for event details pages (reg page)
-        $this->event_details_map_width = 585;            // ee_map_width_single
-        $this->event_details_map_height = 362;            // ee_map_height_single
-        $this->event_details_map_zoom = 14;            // ee_map_zoom_single
-        $this->event_details_display_nav = true;            // ee_map_nav_display_single
-        $this->event_details_nav_size = false;            // ee_map_nav_size_single
-        $this->event_details_control_type = 'default';        // ee_map_type_control_single
-        $this->event_details_map_align = 'center';            // ee_map_align_single
-        // for event list pages
-        $this->event_list_map_width = 300;            // ee_map_width
-        $this->event_list_map_height = 185;        // ee_map_height
-        $this->event_list_map_zoom = 12;            // ee_map_zoom
-        $this->event_list_display_nav = false;        // ee_map_nav_display
-        $this->event_list_nav_size = true;            // ee_map_nav_size
-        $this->event_list_control_type = 'dropdown';        // ee_map_type_control
-        $this->event_list_map_align = 'center';            // ee_map_align
-    }
+	/**
+	 * @var boolean $use_google_maps
+	 */
+	public $use_google_maps;
+
+	/**
+	 * @var string $api_key
+	 */
+	public $google_map_api_key;
+
+	/**
+	 * @var int $event_details_map_width
+	 */
+	public $event_details_map_width;
+
+	/**
+	 * @var int $event_details_map_height
+	 */
+	public $event_details_map_height;
+
+	/**
+	 * @var int $event_details_map_zoom
+	 */
+	public $event_details_map_zoom;
+
+	/**
+	 * @var boolean $event_details_display_nav
+	 */
+	public $event_details_display_nav;
+
+	/**
+	 * @var boolean $event_details_nav_size
+	 */
+	public $event_details_nav_size;
+
+	/**
+	 * @var string $event_details_control_type
+	 */
+	public $event_details_control_type;
+
+	/**
+	 * @var string $event_details_map_align
+	 */
+	public $event_details_map_align;
+
+	/**
+	 * @var int $event_list_map_width
+	 */
+	public $event_list_map_width;
+
+	/**
+	 * @var int $event_list_map_height
+	 */
+	public $event_list_map_height;
+
+	/**
+	 * @var int $event_list_map_zoom
+	 */
+	public $event_list_map_zoom;
+
+	/**
+	 * @var boolean $event_list_display_nav
+	 */
+	public $event_list_display_nav;
+
+	/**
+	 * @var boolean $event_list_nav_size
+	 */
+	public $event_list_nav_size;
+
+	/**
+	 * @var string $event_list_control_type
+	 */
+	public $event_list_control_type;
+
+	/**
+	 * @var string $event_list_map_align
+	 */
+	public $event_list_map_align;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		// set default map settings
+		$this->use_google_maps = true;
+		$this->google_map_api_key = '';
+		// for event details pages (reg page)
+		$this->event_details_map_width = 585;            // ee_map_width_single
+		$this->event_details_map_height = 362;            // ee_map_height_single
+		$this->event_details_map_zoom = 14;            // ee_map_zoom_single
+		$this->event_details_display_nav = true;            // ee_map_nav_display_single
+		$this->event_details_nav_size = false;            // ee_map_nav_size_single
+		$this->event_details_control_type = 'default';        // ee_map_type_control_single
+		$this->event_details_map_align = 'center';            // ee_map_align_single
+		// for event list pages
+		$this->event_list_map_width = 300;            // ee_map_width
+		$this->event_list_map_height = 185;        // ee_map_height
+		$this->event_list_map_zoom = 12;            // ee_map_zoom
+		$this->event_list_display_nav = false;        // ee_map_nav_display
+		$this->event_list_nav_size = true;            // ee_map_nav_size
+		$this->event_list_control_type = 'dropdown';        // ee_map_type_control
+		$this->event_list_map_align = 'center';            // ee_map_align
+	}
 }
 
 /**
@@ -2884,46 +2884,46 @@ 
 class EE_Events_Archive_Config extends EE_Config_Base
 {
 
-    public $display_status_banner;
+	public $display_status_banner;
 
-    public $display_description;
+	public $display_description;
 
-    public $display_ticket_selector;
+	public $display_ticket_selector;
 
-    public $display_datetimes;
+	public $display_datetimes;
 
-    public $display_venue;
+	public $display_venue;
 
-    public $display_expired_events;
+	public $display_expired_events;
 
-    public $use_sortable_display_order;
+	public $use_sortable_display_order;
 
-    public $display_order_tickets;
+	public $display_order_tickets;
 
-    public $display_order_datetimes;
+	public $display_order_datetimes;
 
-    public $display_order_event;
+	public $display_order_event;
 
-    public $display_order_venue;
+	public $display_order_venue;
 
 
-    /**
-     *    class constructor
-     */
-    public function __construct()
-    {
-        $this->display_status_banner = 0;
-        $this->display_description = 1;
-        $this->display_ticket_selector = 0;
-        $this->display_datetimes = 1;
-        $this->display_venue = 0;
-        $this->display_expired_events = 0;
-        $this->use_sortable_display_order = false;
-        $this->display_order_tickets = 100;
-        $this->display_order_datetimes = 110;
-        $this->display_order_event = 120;
-        $this->display_order_venue = 130;
-    }
+	/**
+	 *    class constructor
+	 */
+	public function __construct()
+	{
+		$this->display_status_banner = 0;
+		$this->display_description = 1;
+		$this->display_ticket_selector = 0;
+		$this->display_datetimes = 1;
+		$this->display_venue = 0;
+		$this->display_expired_events = 0;
+		$this->use_sortable_display_order = false;
+		$this->display_order_tickets = 100;
+		$this->display_order_datetimes = 110;
+		$this->display_order_event = 120;
+		$this->display_order_venue = 130;
+	}
 }
 
 /**
@@ -2932,34 +2932,34 @@ 
 class EE_Event_Single_Config extends EE_Config_Base
 {
 
-    public $display_status_banner_single;
+	public $display_status_banner_single;
 
-    public $display_venue;
+	public $display_venue;
 
-    public $use_sortable_display_order;
+	public $use_sortable_display_order;
 
-    public $display_order_tickets;
+	public $display_order_tickets;
 
-    public $display_order_datetimes;
+	public $display_order_datetimes;
 
-    public $display_order_event;
+	public $display_order_event;
 
-    public $display_order_venue;
+	public $display_order_venue;
 
 
-    /**
-     *    class constructor
-     */
-    public function __construct()
-    {
-        $this->display_status_banner_single = 0;
-        $this->display_venue = 1;
-        $this->use_sortable_display_order = false;
-        $this->display_order_tickets = 100;
-        $this->display_order_datetimes = 110;
-        $this->display_order_event = 120;
-        $this->display_order_venue = 130;
-    }
+	/**
+	 *    class constructor
+	 */
+	public function __construct()
+	{
+		$this->display_status_banner_single = 0;
+		$this->display_venue = 1;
+		$this->use_sortable_display_order = false;
+		$this->display_order_tickets = 100;
+		$this->display_order_datetimes = 110;
+		$this->display_order_event = 120;
+		$this->display_order_venue = 130;
+	}
 }
 
 /**
@@ -2968,146 +2968,146 @@ 
 class EE_Ticket_Selector_Config extends EE_Config_Base
 {
 
-    /**
-     * constant to indicate that a datetime selector should NEVER be shown for ticket selectors
-     */
-    const DO_NOT_SHOW_DATETIME_SELECTOR = 'no_datetime_selector';
-
-    /**
-     * constant to indicate that a datetime selector should only be shown for ticket selectors
-     * when the number of datetimes for the event matches the value set for $datetime_selector_threshold
-     */
-    const MAYBE_SHOW_DATETIME_SELECTOR = 'maybe_datetime_selector';
-
-    /**
-     * @var boolean $show_ticket_sale_columns
-     */
-    public $show_ticket_sale_columns;
-
-    /**
-     * @var boolean $show_ticket_details
-     */
-    public $show_ticket_details;
-
-    /**
-     * @var boolean $show_expired_tickets
-     */
-    public $show_expired_tickets;
-
-    /**
-     * whether or not to display a dropdown box populated with event datetimes
-     * that toggles which tickets are displayed for a ticket selector.
-     * uses one of the *_DATETIME_SELECTOR constants defined above
-     *
-     * @var string $show_datetime_selector
-     */
-    private $show_datetime_selector = 'no_datetime_selector';
-
-    /**
-     * the number of datetimes an event has to have before conditionally displaying a datetime selector
-     *
-     * @var int $datetime_selector_threshold
-     */
-    private $datetime_selector_threshold = 3;
-
-
-    /**
-     *    class constructor
-     */
-    public function __construct()
-    {
-        $this->show_ticket_sale_columns = true;
-        $this->show_ticket_details = true;
-        $this->show_expired_tickets = true;
-        $this->show_datetime_selector = \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR;
-        $this->datetime_selector_threshold = 3;
-    }
-
-
-    /**
-     * returns true if a datetime selector should be displayed
-     *
-     * @param array $datetimes
-     * @return bool
-     */
-    public function showDatetimeSelector(array $datetimes)
-    {
-        // if the settings are NOT: don't show OR below threshold, THEN active = true
-        return ! (
-            $this->getShowDatetimeSelector() === \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR
-            || (
-                $this->getShowDatetimeSelector() === \EE_Ticket_Selector_Config::MAYBE_SHOW_DATETIME_SELECTOR
-                && count($datetimes) < $this->getDatetimeSelectorThreshold()
-            )
-        );
-    }
-
-
-    /**
-     * @return string
-     */
-    public function getShowDatetimeSelector()
-    {
-        return $this->show_datetime_selector;
-    }
-
-
-    /**
-     * @param bool $keys_only
-     * @return array
-     */
-    public function getShowDatetimeSelectorOptions($keys_only = true)
-    {
-        return $keys_only
-            ? array(
-                \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR,
-                \EE_Ticket_Selector_Config::MAYBE_SHOW_DATETIME_SELECTOR,
-            )
-            : array(
-                \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR => esc_html__(
-                    'Do not show date & time filter',
-                    'event_espresso'
-                ),
-                \EE_Ticket_Selector_Config::MAYBE_SHOW_DATETIME_SELECTOR  => esc_html__(
-                    'Maybe show date & time filter',
-                    'event_espresso'
-                ),
-            );
-    }
-
-
-    /**
-     * @param string $show_datetime_selector
-     */
-    public function setShowDatetimeSelector($show_datetime_selector)
-    {
-        $this->show_datetime_selector = in_array(
-            $show_datetime_selector,
-            $this->getShowDatetimeSelectorOptions(),
-            true
-        )
-            ? $show_datetime_selector
-            : \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR;
-    }
-
-
-    /**
-     * @return int
-     */
-    public function getDatetimeSelectorThreshold()
-    {
-        return $this->datetime_selector_threshold;
-    }
-
-
-    /**
-     * @param int $datetime_selector_threshold
-     */
-    public function setDatetimeSelectorThreshold($datetime_selector_threshold)
-    {
-        $datetime_selector_threshold = absint($datetime_selector_threshold);
-        $this->datetime_selector_threshold = $datetime_selector_threshold ? $datetime_selector_threshold : 3;
-    }
+	/**
+	 * constant to indicate that a datetime selector should NEVER be shown for ticket selectors
+	 */
+	const DO_NOT_SHOW_DATETIME_SELECTOR = 'no_datetime_selector';
+
+	/**
+	 * constant to indicate that a datetime selector should only be shown for ticket selectors
+	 * when the number of datetimes for the event matches the value set for $datetime_selector_threshold
+	 */
+	const MAYBE_SHOW_DATETIME_SELECTOR = 'maybe_datetime_selector';
+
+	/**
+	 * @var boolean $show_ticket_sale_columns
+	 */
+	public $show_ticket_sale_columns;
+
+	/**
+	 * @var boolean $show_ticket_details
+	 */
+	public $show_ticket_details;
+
+	/**
+	 * @var boolean $show_expired_tickets
+	 */
+	public $show_expired_tickets;
+
+	/**
+	 * whether or not to display a dropdown box populated with event datetimes
+	 * that toggles which tickets are displayed for a ticket selector.
+	 * uses one of the *_DATETIME_SELECTOR constants defined above
+	 *
+	 * @var string $show_datetime_selector
+	 */
+	private $show_datetime_selector = 'no_datetime_selector';
+
+	/**
+	 * the number of datetimes an event has to have before conditionally displaying a datetime selector
+	 *
+	 * @var int $datetime_selector_threshold
+	 */
+	private $datetime_selector_threshold = 3;
+
+
+	/**
+	 *    class constructor
+	 */
+	public function __construct()
+	{
+		$this->show_ticket_sale_columns = true;
+		$this->show_ticket_details = true;
+		$this->show_expired_tickets = true;
+		$this->show_datetime_selector = \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR;
+		$this->datetime_selector_threshold = 3;
+	}
+
+
+	/**
+	 * returns true if a datetime selector should be displayed
+	 *
+	 * @param array $datetimes
+	 * @return bool
+	 */
+	public function showDatetimeSelector(array $datetimes)
+	{
+		// if the settings are NOT: don't show OR below threshold, THEN active = true
+		return ! (
+			$this->getShowDatetimeSelector() === \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR
+			|| (
+				$this->getShowDatetimeSelector() === \EE_Ticket_Selector_Config::MAYBE_SHOW_DATETIME_SELECTOR
+				&& count($datetimes) < $this->getDatetimeSelectorThreshold()
+			)
+		);
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function getShowDatetimeSelector()
+	{
+		return $this->show_datetime_selector;
+	}
+
+
+	/**
+	 * @param bool $keys_only
+	 * @return array
+	 */
+	public function getShowDatetimeSelectorOptions($keys_only = true)
+	{
+		return $keys_only
+			? array(
+				\EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR,
+				\EE_Ticket_Selector_Config::MAYBE_SHOW_DATETIME_SELECTOR,
+			)
+			: array(
+				\EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR => esc_html__(
+					'Do not show date & time filter',
+					'event_espresso'
+				),
+				\EE_Ticket_Selector_Config::MAYBE_SHOW_DATETIME_SELECTOR  => esc_html__(
+					'Maybe show date & time filter',
+					'event_espresso'
+				),
+			);
+	}
+
+
+	/**
+	 * @param string $show_datetime_selector
+	 */
+	public function setShowDatetimeSelector($show_datetime_selector)
+	{
+		$this->show_datetime_selector = in_array(
+			$show_datetime_selector,
+			$this->getShowDatetimeSelectorOptions(),
+			true
+		)
+			? $show_datetime_selector
+			: \EE_Ticket_Selector_Config::DO_NOT_SHOW_DATETIME_SELECTOR;
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function getDatetimeSelectorThreshold()
+	{
+		return $this->datetime_selector_threshold;
+	}
+
+
+	/**
+	 * @param int $datetime_selector_threshold
+	 */
+	public function setDatetimeSelectorThreshold($datetime_selector_threshold)
+	{
+		$datetime_selector_threshold = absint($datetime_selector_threshold);
+		$this->datetime_selector_threshold = $datetime_selector_threshold ? $datetime_selector_threshold : 3;
+	}
 }
 
 /**
@@ -3120,81 +3120,81 @@ 
 class EE_Environment_Config extends EE_Config_Base
 {
 
-    /**
-     * Hold any php environment variables that we want to track.
-     *
-     * @var stdClass;
-     */
-    public $php;
-
-
-    /**
-     *    constructor
-     */
-    public function __construct()
-    {
-        $this->php = new stdClass();
-        $this->_set_php_values();
-    }
-
-
-    /**
-     * This sets the php environment variables.
-     *
-     * @since 4.4.0
-     * @return void
-     */
-    protected function _set_php_values()
-    {
-        $this->php->max_input_vars = ini_get('max_input_vars');
-        $this->php->version = phpversion();
-    }
-
-
-    /**
-     * helper method for determining whether input_count is
-     * reaching the potential maximum the server can handle
-     * according to max_input_vars
-     *
-     * @param int   $input_count the count of input vars.
-     * @return array {
-     *                           An array that represents whether available space and if no available space the error
-     *                           message.
-     * @type bool   $has_space   whether more inputs can be added.
-     * @type string $msg         Any message to be displayed.
-     *                           }
-     */
-    public function max_input_vars_limit_check($input_count = 0)
-    {
-        if (! empty($this->php->max_input_vars)
-            && ($input_count >= $this->php->max_input_vars)
-            && (PHP_MAJOR_VERSION >= 5 && PHP_MINOR_VERSION >= 3 && PHP_RELEASE_VERSION >= 9)
-        ) {
-            return sprintf(
-                __(
-                    'The maximum number of inputs on this page has been exceeded.  You cannot add anymore items (i.e. tickets, datetimes, custom fields) on this page because of your servers PHP "max_input_vars" setting.%1$sThere are %2$d inputs and the maximum amount currently allowed by your server is %3$d.',
-                    'event_espresso'
-                ),
-                '<br>',
-                $input_count,
-                $this->php->max_input_vars
-            );
-        } else {
-            return '';
-        }
-    }
-
-
-    /**
-     * The purpose of this method is just to force rechecking php values so if they've changed, they get updated.
-     *
-     * @since 4.4.1
-     * @return void
-     */
-    public function recheck_values()
-    {
-        $this->_set_php_values();
-    }
+	/**
+	 * Hold any php environment variables that we want to track.
+	 *
+	 * @var stdClass;
+	 */
+	public $php;
+
+
+	/**
+	 *    constructor
+	 */
+	public function __construct()
+	{
+		$this->php = new stdClass();
+		$this->_set_php_values();
+	}
+
+
+	/**
+	 * This sets the php environment variables.
+	 *
+	 * @since 4.4.0
+	 * @return void
+	 */
+	protected function _set_php_values()
+	{
+		$this->php->max_input_vars = ini_get('max_input_vars');
+		$this->php->version = phpversion();
+	}
+
+
+	/**
+	 * helper method for determining whether input_count is
+	 * reaching the potential maximum the server can handle
+	 * according to max_input_vars
+	 *
+	 * @param int   $input_count the count of input vars.
+	 * @return array {
+	 *                           An array that represents whether available space and if no available space the error
+	 *                           message.
+	 * @type bool   $has_space   whether more inputs can be added.
+	 * @type string $msg         Any message to be displayed.
+	 *                           }
+	 */
+	public function max_input_vars_limit_check($input_count = 0)
+	{
+		if (! empty($this->php->max_input_vars)
+			&& ($input_count >= $this->php->max_input_vars)
+			&& (PHP_MAJOR_VERSION >= 5 && PHP_MINOR_VERSION >= 3 && PHP_RELEASE_VERSION >= 9)
+		) {
+			return sprintf(
+				__(
+					'The maximum number of inputs on this page has been exceeded.  You cannot add anymore items (i.e. tickets, datetimes, custom fields) on this page because of your servers PHP "max_input_vars" setting.%1$sThere are %2$d inputs and the maximum amount currently allowed by your server is %3$d.',
+					'event_espresso'
+				),
+				'<br>',
+				$input_count,
+				$this->php->max_input_vars
+			);
+		} else {
+			return '';
+		}
+	}
+
+
+	/**
+	 * The purpose of this method is just to force rechecking php values so if they've changed, they get updated.
+	 *
+	 * @since 4.4.1
+	 * @return void
+	 */
+	public function recheck_values()
+	{
+		$this->_set_php_values();
+	}
 }
 
 /**
@@ -3207,21 +3207,21 @@ 
 class EE_Tax_Config extends EE_Config_Base
 {
 
-    /*
+	/*
      * flag to indicate whether or not to display ticket prices with the taxes included
      *
      * @var boolean $prices_displayed_including_taxes
      */
-    public $prices_displayed_including_taxes;
+	public $prices_displayed_including_taxes;
 
 
-    /**
-     *    class constructor
-     */
-    public function __construct()
-    {
-        $this->prices_displayed_including_taxes = true;
-    }
+	/**
+	 *    class constructor
+	 */
+	public function __construct()
+	{
+		$this->prices_displayed_including_taxes = true;
+	}
 }
 
 /**
@@ -3235,19 +3235,19 @@ 
 class EE_Messages_Config extends EE_Config_Base
 {
 
-    /**
-     * This is an integer representing the deletion threshold in months for when old messages will get deleted.
-     * A value of 0 represents never deleting.  Default is 0.
-     *
-     * @var integer
-     */
-    public $delete_threshold;
+	/**
+	 * This is an integer representing the deletion threshold in months for when old messages will get deleted.
+	 * A value of 0 represents never deleting.  Default is 0.
+	 *
+	 * @var integer
+	 */
+	public $delete_threshold;
 
 
-    public function __construct()
-    {
-        $this->delete_threshold = 0;
-    }
+	public function __construct()
+	{
+		$this->delete_threshold = 0;
+	}
 }
 
 /**
@@ -3258,31 +3258,31 @@ 
 class EE_Gateway_Config extends EE_Config_Base
 {
 
-    /**
-     * Array with keys that are payment gateways slugs, and values are arrays
-     * with any config info the gateway wants to store
-     *
-     * @var array
-     */
-    public $payment_settings;
-
-    /**
-     * Where keys are gateway slugs, and values are booleans indicating whether or not
-     * the gateway is stored in the uploads directory
-     *
-     * @var array
-     */
-    public $active_gateways;
-
-
-    /**
-     *    class constructor
-     *
-     * @deprecated
-     */
-    public function __construct()
-    {
-        $this->payment_settings = array();
-        $this->active_gateways = array('Invoice' => false);
-    }
+	/**
+	 * Array with keys that are payment gateways slugs, and values are arrays
+	 * with any config info the gateway wants to store
+	 *
+	 * @var array
+	 */
+	public $payment_settings;
+
+	/**
+	 * Where keys are gateway slugs, and values are booleans indicating whether or not
+	 * the gateway is stored in the uploads directory
+	 *
+	 * @var array
+	 */
+	public $active_gateways;
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @deprecated
+	 */
+	public function __construct()
+	{
+		$this->payment_settings = array();
+		$this->active_gateways = array('Invoice' => false);
+	}
 }

Spacing +122 added lines, -122 removed lines

@@ -145,7 +145,7 @@ 
     public static function instance()
     {
         // check if class object is instantiated, and instantiated properly
-        if (! self::$_instance instanceof EE_Config) {
+        if ( ! self::$_instance instanceof EE_Config) {
             self::$_instance = new self();
         }
         return self::$_instance;
@@ -283,7 +283,7 @@ 
                 $this
             );
             if (is_object($settings) && property_exists($this, $config)) {
-                $this->{$config} = apply_filters('FHEE__EE_Config___load_core_config__' . $config, $settings);
+                $this->{$config} = apply_filters('FHEE__EE_Config___load_core_config__'.$config, $settings);
                 // call configs populate method to ensure any defaults are set for empty values.
                 if (method_exists($settings, 'populate')) {
                     $this->{$config}->populate();
@@ -556,7 +556,7 @@ 
                         break;
                     // TEST #2 : check that settings section exists
                     case 2:
-                        if (! isset($this->{$section})) {
+                        if ( ! isset($this->{$section})) {
                             if ($display_errors) {
                                 throw new EE_Error(
                                     sprintf(
@@ -570,7 +570,7 @@ 
                         break;
                     // TEST #3 : check that section is the proper format
                     case 3:
-                        if (! ($this->{$section} instanceof EE_Config_Base || $this->{$section} instanceof stdClass)
+                        if ( ! ($this->{$section} instanceof EE_Config_Base || $this->{$section} instanceof stdClass)
                         ) {
                             if ($display_errors) {
                                 throw new EE_Error(
@@ -616,7 +616,7 @@ 
                         break;
                     // TEST #6 : verify config class is accessible
                     case 6:
-                        if (! class_exists($config_class)) {
+                        if ( ! class_exists($config_class)) {
                             if ($display_errors) {
                                 throw new EE_Error(
                                     sprintf(
@@ -633,7 +633,7 @@ 
                         break;
                     // TEST #7 : check that config has even been set
                     case 7:
-                        if (! isset($this->{$section}->{$name})) {
+                        if ( ! isset($this->{$section}->{$name})) {
                             if ($display_errors) {
                                 throw new EE_Error(
                                     sprintf(
@@ -651,7 +651,7 @@ 
                         break;
                     // TEST #8 : check that config is the requested type
                     case 8:
-                        if (! $this->{$section}->{$name} instanceof $config_class) {
+                        if ( ! $this->{$section}->{$name} instanceof $config_class) {
                             if ($display_errors) {
                                 throw new EE_Error(
                                     sprintf(
@@ -670,7 +670,7 @@ 
                         break;
                     // TEST #9 : verify config object
                     case 9:
-                        if (! $config_obj instanceof EE_Config_Base) {
+                        if ( ! $config_obj instanceof EE_Config_Base) {
                             if ($display_errors) {
                                 throw new EE_Error(
                                     sprintf(
@@ -702,7 +702,7 @@ 
      */
     private function _generate_config_option_name($section = '', $name = '')
     {
-        return 'ee_config-' . strtolower($section . '-' . str_replace(array('EE_', 'EED_'), '', $name));
+        return 'ee_config-'.strtolower($section.'-'.str_replace(array('EE_', 'EED_'), '', $name));
     }
 
 
@@ -719,7 +719,7 @@ 
     {
         return ! empty($config_class)
             ? $config_class
-            : str_replace(' ', '_', ucwords(str_replace('_', ' ', $name))) . '_Config';
+            : str_replace(' ', '_', ucwords(str_replace('_', ' ', $name))).'_Config';
     }
 
 
@@ -738,17 +738,17 @@ 
         // ensure config class is set to something
         $config_class = $this->_set_config_class($config_class, $name);
         // run tests 1-4, 6, and 7 to verify all config params are set and valid
-        if (! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
+        if ( ! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
             return null;
         }
         $config_option_name = $this->_generate_config_option_name($section, $name);
         // if the config option name hasn't been added yet to the list of option names we're tracking, then do so now
-        if (! isset($this->_addon_option_names[ $config_option_name ])) {
-            $this->_addon_option_names[ $config_option_name ] = $config_class;
+        if ( ! isset($this->_addon_option_names[$config_option_name])) {
+            $this->_addon_option_names[$config_option_name] = $config_class;
             $this->update_addon_option_names();
         }
         // verify the incoming config object but suppress errors
-        if (! $this->_verify_config_params($section, $name, $config_class, $config_obj, array(9), false)) {
+        if ( ! $this->_verify_config_params($section, $name, $config_class, $config_obj, array(9), false)) {
             $config_obj = new $config_class();
         }
         if (get_option($config_option_name)) {
@@ -795,7 +795,7 @@ 
         // get class name of the incoming object
         $config_class = get_class($config_obj);
         // run tests 1-5 and 9 to verify config
-        if (! $this->_verify_config_params(
+        if ( ! $this->_verify_config_params(
             $section,
             $name,
             $config_class,
@@ -807,7 +807,7 @@ 
         }
         $config_option_name = $this->_generate_config_option_name($section, $name);
         // check if config object has been added to db by seeing if config option name is in $this->_addon_option_names array
-        if (! isset($this->_addon_option_names[ $config_option_name ])) {
+        if ( ! isset($this->_addon_option_names[$config_option_name])) {
             // save new config to db
             if ($this->set_config($section, $name, $config_class, $config_obj)) {
                 return true;
@@ -833,7 +833,7 @@ 
                             'event_espresso'
                         ),
                         $config_class,
-                        'EE_Config->' . $section . '->' . $name
+                        'EE_Config->'.$section.'->'.$name
                     ),
                     __FILE__,
                     __FUNCTION__,
@@ -859,7 +859,7 @@ 
         // ensure config class is set to something
         $config_class = $this->_set_config_class($config_class, $name);
         // run tests 1-4, 6 and 7 to verify that all params have been set
-        if (! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
+        if ( ! $this->_verify_config_params($section, $name, $config_class, null, array(1, 2, 3, 4, 5, 6))) {
             return null;
         }
         // now test if the requested config object exists, but suppress errors
@@ -904,7 +904,7 @@ 
         // retrieve the wp-option for this config class.
         $config_option = maybe_unserialize(get_option($config_option_name, array()));
         if (empty($config_option)) {
-            EE_Config::log($config_option_name . '-NOT-FOUND');
+            EE_Config::log($config_option_name.'-NOT-FOUND');
         }
         return $config_option;
     }
@@ -922,7 +922,7 @@ 
             // copy incoming $_REQUEST and sanitize it so we can save it
             $_request = $_REQUEST;
             array_walk_recursive($_request, 'sanitize_text_field');
-            $config_log[ (string) microtime(true) ] = array(
+            $config_log[(string) microtime(true)] = array(
                 'config_name' => $config_option_name,
                 'request'     => $_request,
             );
@@ -937,7 +937,7 @@ 
      */
     public static function trim_log()
     {
-        if (! EE_Config::logging_enabled()) {
+        if ( ! EE_Config::logging_enabled()) {
             return;
         }
         $config_log = maybe_unserialize(get_option(EE_Config::LOG_NAME, array()));
@@ -961,7 +961,7 @@ 
     public static function get_page_for_posts()
     {
         $page_for_posts = get_option('page_for_posts');
-        if (! $page_for_posts) {
+        if ( ! $page_for_posts) {
             return 'posts';
         }
         /** @type WPDB $wpdb */
@@ -1011,20 +1011,20 @@ 
     {
         // only init widgets on admin pages when not in complete maintenance, and
         // on frontend when not in any maintenance mode
-        if (! EE_Maintenance_Mode::instance()->level()
+        if ( ! EE_Maintenance_Mode::instance()->level()
             || (
                 is_admin()
                 && EE_Maintenance_Mode::instance()->level() !== EE_Maintenance_Mode::level_2_complete_maintenance
             )
         ) {
             // grab list of installed widgets
-            $widgets_to_register = glob(EE_WIDGETS . '*', GLOB_ONLYDIR);
+            $widgets_to_register = glob(EE_WIDGETS.'*', GLOB_ONLYDIR);
             // filter list of modules to register
             $widgets_to_register = apply_filters(
                 'FHEE__EE_Config__register_widgets__widgets_to_register',
                 $widgets_to_register
             );
-            if (! empty($widgets_to_register)) {
+            if ( ! empty($widgets_to_register)) {
                 // cycle thru widget folders
                 foreach ($widgets_to_register as $widget_path) {
                     // add to list of installed widget modules
@@ -1074,31 +1074,31 @@ 
         // create classname from widget directory name
         $widget = str_replace(' ', '_', ucwords(str_replace('_', ' ', $widget)));
         // add class prefix
-        $widget_class = 'EEW_' . $widget;
+        $widget_class = 'EEW_'.$widget;
         // does the widget exist ?
-        if (! is_readable($widget_path . DS . $widget_class . $widget_ext)) {
+        if ( ! is_readable($widget_path.DS.$widget_class.$widget_ext)) {
             $msg = sprintf(
                 __(
                     'The requested %s widget file could not be found or is not readable due to file permissions. Please ensure the following path is correct: %s',
                     'event_espresso'
                 ),
                 $widget_class,
-                $widget_path . DS . $widget_class . $widget_ext
+                $widget_path.DS.$widget_class.$widget_ext
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return;
         }
         // load the widget class file
-        require_once($widget_path . DS . $widget_class . $widget_ext);
+        require_once($widget_path.DS.$widget_class.$widget_ext);
         // verify that class exists
-        if (! class_exists($widget_class)) {
+        if ( ! class_exists($widget_class)) {
             $msg = sprintf(__('The requested %s widget class does not exist.', 'event_espresso'), $widget_class);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return;
         }
         register_widget($widget_class);
         // add to array of registered widgets
-        EE_Registry::instance()->widgets->{$widget_class} = $widget_path . DS . $widget_class . $widget_ext;
+        EE_Registry::instance()->widgets->{$widget_class} = $widget_path.DS.$widget_class.$widget_ext;
     }
 
 
@@ -1111,18 +1111,18 @@ 
     private function _register_modules()
     {
         // grab list of installed modules
-        $modules_to_register = glob(EE_MODULES . '*', GLOB_ONLYDIR);
+        $modules_to_register = glob(EE_MODULES.'*', GLOB_ONLYDIR);
         // filter list of modules to register
         $modules_to_register = apply_filters(
             'FHEE__EE_Config__register_modules__modules_to_register',
             $modules_to_register
         );
-        if (! empty($modules_to_register)) {
+        if ( ! empty($modules_to_register)) {
             // loop through folders
             foreach ($modules_to_register as $module_path) {
                 /**TEMPORARILY EXCLUDE gateways from modules for time being**/
-                if ($module_path !== EE_MODULES . 'zzz-copy-this-module-template'
-                    && $module_path !== EE_MODULES . 'gateways'
+                if ($module_path !== EE_MODULES.'zzz-copy-this-module-template'
+                    && $module_path !== EE_MODULES.'gateways'
                 ) {
                     // add to list of installed modules
                     EE_Config::register_module($module_path);
@@ -1159,25 +1159,25 @@ 
             // remove last segment
             array_pop($module_path);
             // glue it back together
-            $module_path = implode(DS, $module_path) . DS;
+            $module_path = implode(DS, $module_path).DS;
             // take first segment from file name pieces and sanitize it
             $module = preg_replace('/[^a-zA-Z0-9_\-]/', '', $module_file[0]);
             // ensure class prefix is added
-            $module_class = strpos($module, 'EED_') !== 0 ? 'EED_' . $module : $module;
+            $module_class = strpos($module, 'EED_') !== 0 ? 'EED_'.$module : $module;
         } else {
             // we need to generate the filename based off of the folder name
             // grab and sanitize module name
             $module = strtolower(basename($module_path));
             $module = preg_replace('/[^a-z0-9_\-]/', '', $module);
             // like trailingslashit()
-            $module_path = rtrim($module_path, DS) . DS;
+            $module_path = rtrim($module_path, DS).DS;
             // create classname from module directory name
             $module = str_replace(' ', '_', ucwords(str_replace('_', ' ', $module)));
             // add class prefix
-            $module_class = 'EED_' . $module;
+            $module_class = 'EED_'.$module;
         }
         // does the module exist ?
-        if (! is_readable($module_path . DS . $module_class . $module_ext)) {
+        if ( ! is_readable($module_path.DS.$module_class.$module_ext)) {
             $msg = sprintf(
                 __(
                     'The requested %s module file could not be found or is not readable due to file permissions.',
@@ -1185,19 +1185,19 @@ 
                 ),
                 $module
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
         // load the module class file
-        require_once($module_path . $module_class . $module_ext);
+        require_once($module_path.$module_class.$module_ext);
         // verify that class exists
-        if (! class_exists($module_class)) {
+        if ( ! class_exists($module_class)) {
             $msg = sprintf(__('The requested %s module class does not exist.', 'event_espresso'), $module_class);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
         // add to array of registered modules
-        EE_Registry::instance()->modules->{$module_class} = $module_path . $module_class . $module_ext;
+        EE_Registry::instance()->modules->{$module_class} = $module_path.$module_class.$module_ext;
         do_action(
             'AHEE__EE_Config__register_module__complete',
             $module_class,
@@ -1248,26 +1248,26 @@ 
     {
         do_action('AHEE__EE_Config__register_route__begin', $route, $module, $method_name);
         $module = str_replace('EED_', '', $module);
-        $module_class = 'EED_' . $module;
-        if (! isset(EE_Registry::instance()->modules->{$module_class})) {
+        $module_class = 'EED_'.$module;
+        if ( ! isset(EE_Registry::instance()->modules->{$module_class})) {
             $msg = sprintf(__('The module %s has not been registered.', 'event_espresso'), $module);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
         if (empty($route)) {
             $msg = sprintf(__('No route has been supplied.', 'event_espresso'), $route);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
-        if (! method_exists('EED_' . $module, $method_name)) {
+        if ( ! method_exists('EED_'.$module, $method_name)) {
             $msg = sprintf(
                 __('A valid class method for the %s route has not been supplied.', 'event_espresso'),
                 $route
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
-        EE_Config::$_module_route_map[ $key ][ $route ] = array('EED_' . $module, $method_name);
+        EE_Config::$_module_route_map[$key][$route] = array('EED_'.$module, $method_name);
         return true;
     }
 
@@ -1284,8 +1284,8 @@ 
     {
         do_action('AHEE__EE_Config__get_route__begin', $route);
         $route = (string) apply_filters('FHEE__EE_Config__get_route', $route);
-        if (isset(EE_Config::$_module_route_map[ $key ][ $route ])) {
-            return EE_Config::$_module_route_map[ $key ][ $route ];
+        if (isset(EE_Config::$_module_route_map[$key][$route])) {
+            return EE_Config::$_module_route_map[$key][$route];
         }
         return null;
     }
@@ -1317,47 +1317,47 @@ 
     public static function register_forward($route = null, $status = 0, $forward = null, $key = 'ee')
     {
         do_action('AHEE__EE_Config__register_forward', $route, $status, $forward);
-        if (! isset(EE_Config::$_module_route_map[ $key ][ $route ]) || empty($route)) {
+        if ( ! isset(EE_Config::$_module_route_map[$key][$route]) || empty($route)) {
             $msg = sprintf(
                 __('The module route %s for this forward has not been registered.', 'event_espresso'),
                 $route
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
         if (empty($forward)) {
             $msg = sprintf(__('No forwarding route has been supplied.', 'event_espresso'), $route);
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
         if (is_array($forward)) {
-            if (! isset($forward[1])) {
+            if ( ! isset($forward[1])) {
                 $msg = sprintf(
                     __('A class method for the %s forwarding route has not been supplied.', 'event_espresso'),
                     $route
                 );
-                EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+                EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
                 return false;
             }
-            if (! method_exists($forward[0], $forward[1])) {
+            if ( ! method_exists($forward[0], $forward[1])) {
                 $msg = sprintf(
                     __('The class method %s for the %s forwarding route is in invalid.', 'event_espresso'),
                     $forward[1],
                     $route
                 );
-                EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+                EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
                 return false;
             }
-        } elseif (! function_exists($forward)) {
+        } elseif ( ! function_exists($forward)) {
             $msg = sprintf(
                 __('The function %s for the %s forwarding route is in invalid.', 'event_espresso'),
                 $forward,
                 $route
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
-        EE_Config::$_module_forward_map[ $key ][ $route ][ absint($status) ] = $forward;
+        EE_Config::$_module_forward_map[$key][$route][absint($status)] = $forward;
         return true;
     }
 
@@ -1375,10 +1375,10 @@ 
     public static function get_forward($route = null, $status = 0, $key = 'ee')
     {
         do_action('AHEE__EE_Config__get_forward__begin', $route, $status);
-        if (isset(EE_Config::$_module_forward_map[ $key ][ $route ][ $status ])) {
+        if (isset(EE_Config::$_module_forward_map[$key][$route][$status])) {
             return apply_filters(
                 'FHEE__EE_Config__get_forward',
-                EE_Config::$_module_forward_map[ $key ][ $route ][ $status ],
+                EE_Config::$_module_forward_map[$key][$route][$status],
                 $route,
                 $status
             );
@@ -1402,15 +1402,15 @@ 
     public static function register_view($route = null, $status = 0, $view = null, $key = 'ee')
     {
         do_action('AHEE__EE_Config__register_view__begin', $route, $status, $view);
-        if (! isset(EE_Config::$_module_route_map[ $key ][ $route ]) || empty($route)) {
+        if ( ! isset(EE_Config::$_module_route_map[$key][$route]) || empty($route)) {
             $msg = sprintf(
                 __('The module route %s for this view has not been registered.', 'event_espresso'),
                 $route
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
-        if (! is_readable($view)) {
+        if ( ! is_readable($view)) {
             $msg = sprintf(
                 __(
                     'The %s view file could not be found or is not readable due to file permissions.',
@@ -1418,10 +1418,10 @@ 
                 ),
                 $view
             );
-            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($msg.'||'.$msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
-        EE_Config::$_module_view_map[ $key ][ $route ][ absint($status) ] = $view;
+        EE_Config::$_module_view_map[$key][$route][absint($status)] = $view;
         return true;
     }
 
@@ -1439,10 +1439,10 @@ 
     public static function get_view($route = null, $status = 0, $key = 'ee')
     {
         do_action('AHEE__EE_Config__get_view__begin', $route, $status);
-        if (isset(EE_Config::$_module_view_map[ $key ][ $route ][ $status ])) {
+        if (isset(EE_Config::$_module_view_map[$key][$route][$status])) {
             return apply_filters(
                 'FHEE__EE_Config__get_view',
-                EE_Config::$_module_view_map[ $key ][ $route ][ $status ],
+                EE_Config::$_module_view_map[$key][$route][$status],
                 $route,
                 $status
             );
@@ -1469,7 +1469,7 @@ 
     public static function getLegacyShortcodesManager()
     {
 
-        if (! EE_Config::instance()->legacy_shortcodes_manager instanceof LegacyShortcodesManager) {
+        if ( ! EE_Config::instance()->legacy_shortcodes_manager instanceof LegacyShortcodesManager) {
             EE_Config::instance()->legacy_shortcodes_manager = new LegacyShortcodesManager(
                 EE_Registry::instance()
             );
@@ -1516,7 +1516,7 @@ 
      */
     public function get_pretty($property)
     {
-        if (! property_exists($this, $property)) {
+        if ( ! property_exists($this, $property)) {
             throw new EE_Error(
                 sprintf(
                     __(
@@ -1745,11 +1745,11 @@ 
      */
     public function reg_page_url()
     {
-        if (! $this->reg_page_url) {
+        if ( ! $this->reg_page_url) {
             $this->reg_page_url = add_query_arg(
                 array('uts' => time()),
                 get_permalink($this->reg_page_id)
-            ) . '#checkout';
+            ).'#checkout';
         }
         return $this->reg_page_url;
     }
@@ -1765,7 +1765,7 @@ 
      */
     public function txn_page_url($query_args = array())
     {
-        if (! $this->txn_page_url) {
+        if ( ! $this->txn_page_url) {
             $this->txn_page_url = get_permalink($this->txn_page_id);
         }
         if ($query_args) {
@@ -1786,7 +1786,7 @@ 
      */
     public function thank_you_page_url($query_args = array())
     {
-        if (! $this->thank_you_page_url) {
+        if ( ! $this->thank_you_page_url) {
             $this->thank_you_page_url = get_permalink($this->thank_you_page_id);
         }
         if ($query_args) {
@@ -1805,7 +1805,7 @@ 
      */
     public function cancel_page_url()
     {
-        if (! $this->cancel_page_url) {
+        if ( ! $this->cancel_page_url) {
             $this->cancel_page_url = get_permalink($this->cancel_page_id);
         }
         return $this->cancel_page_url;
@@ -1848,13 +1848,13 @@ 
         $current_main_site_id = ! empty($current_network_main_site) ? $current_network_main_site->blog_id : 1;
         $option = self::OPTION_NAME_UXIP;
         // set correct table for query
-        $table_name = $wpdb->get_blog_prefix($current_main_site_id) . 'options';
+        $table_name = $wpdb->get_blog_prefix($current_main_site_id).'options';
         // rather than getting blog option for the $current_main_site_id, we do a direct $wpdb query because
         // get_blog_option() does a switch_to_blog an that could cause infinite recursion because EE_Core_Config might be
         // re-constructed on the blog switch.  Note, we are still executing any core wp filters on this option retrieval.
         // this bit of code is basically a direct copy of get_option without any caching because we are NOT switched to the blog
         // for the purpose of caching.
-        $pre = apply_filters('pre_option_' . $option, false, $option);
+        $pre = apply_filters('pre_option_'.$option, false, $option);
         if (false !== $pre) {
             EE_Core_Config::$ee_ueip_option = $pre;
             return EE_Core_Config::$ee_ueip_option;
@@ -1868,10 +1868,10 @@ 
         if (is_object($row)) {
             $value = $row->option_value;
         } else { // option does not exist so use default.
-            EE_Core_Config::$ee_ueip_option =  apply_filters('default_option_' . $option, false, $option);
+            EE_Core_Config::$ee_ueip_option = apply_filters('default_option_'.$option, false, $option);
             return EE_Core_Config::$ee_ueip_option;
         }
-        EE_Core_Config::$ee_ueip_option = apply_filters('option_' . $option, maybe_unserialize($value), $option);
+        EE_Core_Config::$ee_ueip_option = apply_filters('option_'.$option, maybe_unserialize($value), $option);
         return EE_Core_Config::$ee_ueip_option;
     }
 
@@ -2140,37 +2140,37 @@ 
         // but override if requested
         $CNT_ISO = ! empty($CNT_ISO) ? $CNT_ISO : $ORG_CNT;
         // so if that all went well, and we are not in M-Mode (cuz you can't query the db in M-Mode) and double-check the countries table exists
-        if (! empty($CNT_ISO)
+        if ( ! empty($CNT_ISO)
             && EE_Maintenance_Mode::instance()->models_can_query()
             && $table_analysis->tableExists(EE_Registry::instance()->load_model('Country')->table())
         ) {
             // retrieve the country settings from the db, just in case they have been customized
             $country = EE_Registry::instance()->load_model('Country')->get_one_by_ID($CNT_ISO);
             if ($country instanceof EE_Country) {
-                $this->code = $country->currency_code();    // currency code: USD, CAD, EUR
-                $this->name = $country->currency_name_single();    // Dollar
-                $this->plural = $country->currency_name_plural();    // Dollars
-                $this->sign = $country->currency_sign();            // currency sign: $
+                $this->code = $country->currency_code(); // currency code: USD, CAD, EUR
+                $this->name = $country->currency_name_single(); // Dollar
+                $this->plural = $country->currency_name_plural(); // Dollars
+                $this->sign = $country->currency_sign(); // currency sign: $
                 $this->sign_b4 = $country->currency_sign_before(
-                );        // currency sign before or after: $TRUE  or  FALSE$
-                $this->dec_plc = $country->currency_decimal_places();    // decimal places: 2 = 0.00  3 = 0.000
+                ); // currency sign before or after: $TRUE  or  FALSE$
+                $this->dec_plc = $country->currency_decimal_places(); // decimal places: 2 = 0.00  3 = 0.000
                 $this->dec_mrk = $country->currency_decimal_mark(
-                );    // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
+                ); // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
                 $this->thsnds = $country->currency_thousands_separator(
-                );    // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
+                ); // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
             }
         }
         // fallback to hardcoded defaults, in case the above failed
         if (empty($this->code)) {
             // set default currency settings
-            $this->code = 'USD';    // currency code: USD, CAD, EUR
-            $this->name = __('Dollar', 'event_espresso');    // Dollar
-            $this->plural = __('Dollars', 'event_espresso');    // Dollars
-            $this->sign = '$';    // currency sign: $
-            $this->sign_b4 = true;    // currency sign before or after: $TRUE  or  FALSE$
-            $this->dec_plc = 2;    // decimal places: 2 = 0.00  3 = 0.000
-            $this->dec_mrk = '.';    // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
-            $this->thsnds = ',';    // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
+            $this->code = 'USD'; // currency code: USD, CAD, EUR
+            $this->name = __('Dollar', 'event_espresso'); // Dollar
+            $this->plural = __('Dollars', 'event_espresso'); // Dollars
+            $this->sign = '$'; // currency sign: $
+            $this->sign_b4 = true; // currency sign before or after: $TRUE  or  FALSE$
+            $this->dec_plc = 2; // decimal places: 2 = 0.00  3 = 0.000
+            $this->dec_mrk = '.'; // decimal mark: (comma) ',' = 0,01   or (decimal) '.' = 0.01
+            $this->thsnds = ','; // thousands separator: (comma) ',' = 1,000   or (decimal) '.' = 1.000
         }
     }
 }
@@ -2429,8 +2429,8 @@ 
             $closing_a_tag = '';
             if (function_exists('get_privacy_policy_url')) {
                 $privacy_page_url = get_privacy_policy_url();
-                if (! empty($privacy_page_url)) {
-                    $opening_a_tag = '<a href="' . $privacy_page_url . '" target="_blank">';
+                if ( ! empty($privacy_page_url)) {
+                    $opening_a_tag = '<a href="'.$privacy_page_url.'" target="_blank">';
                     $closing_a_tag = '</a>';
                 }
             }
@@ -2642,7 +2642,7 @@ 
     public function log_file_name($reset = false)
     {
         if (empty($this->log_file_name) || $reset) {
-            $this->log_file_name = sanitize_key('espresso_log_' . md5(uniqid('', true))) . '.txt';
+            $this->log_file_name = sanitize_key('espresso_log_'.md5(uniqid('', true))).'.txt';
             EE_Config::instance()->update_espresso_config(false, false);
         }
         return $this->log_file_name;
@@ -2656,7 +2656,7 @@ 
     public function debug_file_name($reset = false)
     {
         if (empty($this->debug_file_name) || $reset) {
-            $this->debug_file_name = sanitize_key('espresso_debug_' . md5(uniqid('', true))) . '.txt';
+            $this->debug_file_name = sanitize_key('espresso_debug_'.md5(uniqid('', true))).'.txt';
             EE_Config::instance()->update_espresso_config(false, false);
         }
         return $this->debug_file_name;
@@ -2860,21 +2860,21 @@ 
         $this->use_google_maps = true;
         $this->google_map_api_key = '';
         // for event details pages (reg page)
-        $this->event_details_map_width = 585;            // ee_map_width_single
-        $this->event_details_map_height = 362;            // ee_map_height_single
-        $this->event_details_map_zoom = 14;            // ee_map_zoom_single
-        $this->event_details_display_nav = true;            // ee_map_nav_display_single
-        $this->event_details_nav_size = false;            // ee_map_nav_size_single
-        $this->event_details_control_type = 'default';        // ee_map_type_control_single
-        $this->event_details_map_align = 'center';            // ee_map_align_single
+        $this->event_details_map_width = 585; // ee_map_width_single
+        $this->event_details_map_height = 362; // ee_map_height_single
+        $this->event_details_map_zoom = 14; // ee_map_zoom_single
+        $this->event_details_display_nav = true; // ee_map_nav_display_single
+        $this->event_details_nav_size = false; // ee_map_nav_size_single
+        $this->event_details_control_type = 'default'; // ee_map_type_control_single
+        $this->event_details_map_align = 'center'; // ee_map_align_single
         // for event list pages
-        $this->event_list_map_width = 300;            // ee_map_width
-        $this->event_list_map_height = 185;        // ee_map_height
-        $this->event_list_map_zoom = 12;            // ee_map_zoom
-        $this->event_list_display_nav = false;        // ee_map_nav_display
-        $this->event_list_nav_size = true;            // ee_map_nav_size
-        $this->event_list_control_type = 'dropdown';        // ee_map_type_control
-        $this->event_list_map_align = 'center';            // ee_map_align
+        $this->event_list_map_width = 300; // ee_map_width
+        $this->event_list_map_height = 185; // ee_map_height
+        $this->event_list_map_zoom = 12; // ee_map_zoom
+        $this->event_list_display_nav = false; // ee_map_nav_display
+        $this->event_list_nav_size = true; // ee_map_nav_size
+        $this->event_list_control_type = 'dropdown'; // ee_map_type_control
+        $this->event_list_map_align = 'center'; // ee_map_align
     }
 }
 
@@ -3166,7 +3166,7 @@ 
      */
     public function max_input_vars_limit_check($input_count = 0)
     {
-        if (! empty($this->php->max_input_vars)
+        if ( ! empty($this->php->max_input_vars)
             && ($input_count >= $this->php->max_input_vars)
             && (PHP_MAJOR_VERSION >= 5 && PHP_MINOR_VERSION >= 3 && PHP_RELEASE_VERSION >= 9)
         ) {