eventespresso / event-espresso-core

core/EE_Front_Controller.core.php

Indentation +495 added lines, -495 removed lines

@@ -8,7 +8,7 @@ 
 use EventEspresso\widgets\EspressoWidget;
 
 if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 /**
@@ -31,401 +31,401 @@ 
 final class EE_Front_Controller
 {
 
-    /**
-     * @var string $_template_path
-     */
-    private $_template_path;
-
-    /**
-     * @var string $_template
-     */
-    private $_template;
-
-    /**
-     * @type EE_Registry $Registry
-     */
-    protected $Registry;
-
-    /**
-     * @type EE_Request_Handler $Request_Handler
-     */
-    protected $Request_Handler;
-
-    /**
-     * @type EE_Module_Request_Router $Module_Request_Router
-     */
-    protected $Module_Request_Router;
-
-    /**
-     * @var PersistentAdminNoticeManager $persistent_admin_notice_manager
-     */
-    private $persistent_admin_notice_manager;
-
-
-    /**
-     *    class constructor
-     *    should fire after shortcode, module, addon, or other plugin's default priority init phases have run
-     *
-     * @access    public
-     * @param \EE_Registry              $Registry
-     * @param \EE_Request_Handler       $Request_Handler
-     * @param \EE_Module_Request_Router $Module_Request_Router
-     */
-    public function __construct(
-        EE_Registry $Registry,
-        EE_Request_Handler $Request_Handler,
-        EE_Module_Request_Router $Module_Request_Router
-    ) {
-        $this->Registry              = $Registry;
-        $this->Request_Handler       = $Request_Handler;
-        $this->Module_Request_Router = $Module_Request_Router;
-        // determine how to integrate WP_Query with the EE models
-        add_action('AHEE__EE_System__initialize', array($this, 'employ_CPT_Strategy'));
-        // just in case any nag notices are created during the request
-        add_action('AHEE__EE_System__initialize_last', array($this, 'loadPersistentAdminNoticeManager'));
-        // load other resources and begin to actually run shortcodes and modules
-        add_action('wp_loaded', array($this, 'wp_loaded'), 5);
-        // analyse the incoming WP request
-        add_action('parse_request', array($this, 'get_request'), 1, 1);
-        // process request with module factory
-        add_action('pre_get_posts', array($this, 'pre_get_posts'), 10, 1);
-        // before headers sent
-        add_action('wp', array($this, 'wp'), 5);
-        // primarily used to process any content shortcodes
-        add_action('template_redirect', array($this, 'templateRedirect'), 999);
-        // header
-        add_action('wp_head', array($this, 'header_meta_tag'), 5);
-        add_action('wp_print_scripts', array($this, 'wp_print_scripts'), 10);
-        add_filter('template_include', array($this, 'template_include'), 1);
-        // display errors
-        add_action('loop_start', array($this, 'display_errors'), 2);
-        // the content
-        // add_filter( 'the_content', array( $this, 'the_content' ), 5, 1 );
-        //exclude our private cpt comments
-        add_filter('comments_clauses', array($this, 'filter_wp_comments'), 10, 1);
-        //make sure any ajax requests will respect the url schema when requests are made against admin-ajax.php (http:// or https://)
-        add_filter('admin_url', array($this, 'maybe_force_admin_ajax_ssl'), 200, 1);
-        // action hook EE
-        do_action('AHEE__EE_Front_Controller__construct__done', $this);
-    }
-
-
-    /**
-     * @return EE_Request_Handler
-     */
-    public function Request_Handler()
-    {
-        return $this->Request_Handler;
-    }
-
-
-    /**
-     * @return EE_Module_Request_Router
-     */
-    public function Module_Request_Router()
-    {
-        return $this->Module_Request_Router;
-    }
-
-
-
-    /**
-     * @return LegacyShortcodesManager
-     */
-    public function getLegacyShortcodesManager()
-    {
-        return EE_Config::getLegacyShortcodesManager();
-    }
-
-
-
-
-
-    /***********************************************        INIT ACTION HOOK         ***********************************************/
-
-
-
-    /**
-     * filter_wp_comments
-     * This simply makes sure that any "private" EE CPTs do not have their comments show up in any wp comment
-     * widgets/queries done on frontend
-     *
-     * @param  array $clauses array of comment clauses setup by WP_Comment_Query
-     * @return array array of comment clauses with modifications.
-     */
-    public function filter_wp_comments($clauses)
-    {
-        global $wpdb;
-        if (strpos($clauses['join'], $wpdb->posts) !== false) {
-            $cpts = EE_Register_CPTs::get_private_CPTs();
-            foreach ($cpts as $cpt => $details) {
-                $clauses['where'] .= $wpdb->prepare(" AND $wpdb->posts.post_type != %s", $cpt);
-            }
-        }
-        return $clauses;
-    }
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public function employ_CPT_Strategy()
-    {
-        if (apply_filters('FHEE__EE_Front_Controller__employ_CPT_Strategy', true)) {
-            $this->Registry->load_core('CPT_Strategy');
-        }
-    }
-
-
-    /**
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function loadPersistentAdminNoticeManager()
-    {
-        $this->persistent_admin_notice_manager = LoaderFactory::getLoader()->getShared(
-            'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
-        );
-    }
-
-
-    /**
-     * this just makes sure that if the site is using ssl that we force that for any admin ajax calls from frontend
-     *
-     * @param  string $url incoming url
-     * @return string         final assembled url
-     */
-    public function maybe_force_admin_ajax_ssl($url)
-    {
-        if (is_ssl() && preg_match('/admin-ajax.php/', $url)) {
-            $url = str_replace('http://', 'https://', $url);
-        }
-        return $url;
-    }
+	/**
+	 * @var string $_template_path
+	 */
+	private $_template_path;
+
+	/**
+	 * @var string $_template
+	 */
+	private $_template;
+
+	/**
+	 * @type EE_Registry $Registry
+	 */
+	protected $Registry;
+
+	/**
+	 * @type EE_Request_Handler $Request_Handler
+	 */
+	protected $Request_Handler;
+
+	/**
+	 * @type EE_Module_Request_Router $Module_Request_Router
+	 */
+	protected $Module_Request_Router;
+
+	/**
+	 * @var PersistentAdminNoticeManager $persistent_admin_notice_manager
+	 */
+	private $persistent_admin_notice_manager;
+
+
+	/**
+	 *    class constructor
+	 *    should fire after shortcode, module, addon, or other plugin's default priority init phases have run
+	 *
+	 * @access    public
+	 * @param \EE_Registry              $Registry
+	 * @param \EE_Request_Handler       $Request_Handler
+	 * @param \EE_Module_Request_Router $Module_Request_Router
+	 */
+	public function __construct(
+		EE_Registry $Registry,
+		EE_Request_Handler $Request_Handler,
+		EE_Module_Request_Router $Module_Request_Router
+	) {
+		$this->Registry              = $Registry;
+		$this->Request_Handler       = $Request_Handler;
+		$this->Module_Request_Router = $Module_Request_Router;
+		// determine how to integrate WP_Query with the EE models
+		add_action('AHEE__EE_System__initialize', array($this, 'employ_CPT_Strategy'));
+		// just in case any nag notices are created during the request
+		add_action('AHEE__EE_System__initialize_last', array($this, 'loadPersistentAdminNoticeManager'));
+		// load other resources and begin to actually run shortcodes and modules
+		add_action('wp_loaded', array($this, 'wp_loaded'), 5);
+		// analyse the incoming WP request
+		add_action('parse_request', array($this, 'get_request'), 1, 1);
+		// process request with module factory
+		add_action('pre_get_posts', array($this, 'pre_get_posts'), 10, 1);
+		// before headers sent
+		add_action('wp', array($this, 'wp'), 5);
+		// primarily used to process any content shortcodes
+		add_action('template_redirect', array($this, 'templateRedirect'), 999);
+		// header
+		add_action('wp_head', array($this, 'header_meta_tag'), 5);
+		add_action('wp_print_scripts', array($this, 'wp_print_scripts'), 10);
+		add_filter('template_include', array($this, 'template_include'), 1);
+		// display errors
+		add_action('loop_start', array($this, 'display_errors'), 2);
+		// the content
+		// add_filter( 'the_content', array( $this, 'the_content' ), 5, 1 );
+		//exclude our private cpt comments
+		add_filter('comments_clauses', array($this, 'filter_wp_comments'), 10, 1);
+		//make sure any ajax requests will respect the url schema when requests are made against admin-ajax.php (http:// or https://)
+		add_filter('admin_url', array($this, 'maybe_force_admin_ajax_ssl'), 200, 1);
+		// action hook EE
+		do_action('AHEE__EE_Front_Controller__construct__done', $this);
+	}
+
+
+	/**
+	 * @return EE_Request_Handler
+	 */
+	public function Request_Handler()
+	{
+		return $this->Request_Handler;
+	}
+
+
+	/**
+	 * @return EE_Module_Request_Router
+	 */
+	public function Module_Request_Router()
+	{
+		return $this->Module_Request_Router;
+	}
+
+
+
+	/**
+	 * @return LegacyShortcodesManager
+	 */
+	public function getLegacyShortcodesManager()
+	{
+		return EE_Config::getLegacyShortcodesManager();
+	}
+
+
+
+
+
+	/***********************************************        INIT ACTION HOOK         ***********************************************/
+
+
+
+	/**
+	 * filter_wp_comments
+	 * This simply makes sure that any "private" EE CPTs do not have their comments show up in any wp comment
+	 * widgets/queries done on frontend
+	 *
+	 * @param  array $clauses array of comment clauses setup by WP_Comment_Query
+	 * @return array array of comment clauses with modifications.
+	 */
+	public function filter_wp_comments($clauses)
+	{
+		global $wpdb;
+		if (strpos($clauses['join'], $wpdb->posts) !== false) {
+			$cpts = EE_Register_CPTs::get_private_CPTs();
+			foreach ($cpts as $cpt => $details) {
+				$clauses['where'] .= $wpdb->prepare(" AND $wpdb->posts.post_type != %s", $cpt);
+			}
+		}
+		return $clauses;
+	}
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public function employ_CPT_Strategy()
+	{
+		if (apply_filters('FHEE__EE_Front_Controller__employ_CPT_Strategy', true)) {
+			$this->Registry->load_core('CPT_Strategy');
+		}
+	}
+
+
+	/**
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function loadPersistentAdminNoticeManager()
+	{
+		$this->persistent_admin_notice_manager = LoaderFactory::getLoader()->getShared(
+			'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'
+		);
+	}
+
+
+	/**
+	 * this just makes sure that if the site is using ssl that we force that for any admin ajax calls from frontend
+	 *
+	 * @param  string $url incoming url
+	 * @return string         final assembled url
+	 */
+	public function maybe_force_admin_ajax_ssl($url)
+	{
+		if (is_ssl() && preg_match('/admin-ajax.php/', $url)) {
+			$url = str_replace('http://', 'https://', $url);
+		}
+		return $url;
+	}
 
 
 
-
-
-
-    /***********************************************        WP_LOADED ACTION HOOK         ***********************************************/
-
-
-    /**
-     *    wp_loaded - should fire after shortcode, module, addon, or other plugin's have been registered and their
-     *    default priority init phases have run
-     *
-     * @access    public
-     * @return    void
-     */
-    public function wp_loaded()
-    {
-    }
-
-
-
-
-
-    /***********************************************        PARSE_REQUEST HOOK         ***********************************************/
-    /**
-     *    _get_request
-     *
-     * @access public
-     * @param WP $WP
-     * @return void
-     */
-    public function get_request(WP $WP)
-    {
-        do_action('AHEE__EE_Front_Controller__get_request__start');
-        $this->Request_Handler->parse_request($WP);
-        do_action('AHEE__EE_Front_Controller__get_request__complete');
-    }
-
-
-
-    /**
-     *    pre_get_posts - basically a module factory for instantiating modules and selecting the final view template
-     *
-     * @access    public
-     * @param   WP_Query $WP_Query
-     * @return    void
-     */
-    public function pre_get_posts($WP_Query)
-    {
-        // only load Module_Request_Router if this is the main query
-        if (
-            $this->Module_Request_Router instanceof EE_Module_Request_Router
-            && $WP_Query->is_main_query()
-        ) {
-            // cycle thru module routes
-            while ($route = $this->Module_Request_Router->get_route($WP_Query)) {
-                // determine module and method for route
-                $module = $this->Module_Request_Router->resolve_route($route[0], $route[1]);
-                if ($module instanceof EED_Module) {
-                    // get registered view for route
-                    $this->_template_path = $this->Module_Request_Router->get_view($route);
-                    // grab module name
-                    $module_name = $module->module_name();
-                    // map the module to the module objects
-                    $this->Registry->modules->{$module_name} = $module;
-                }
-            }
-        }
-    }
-
-
-
-
-
-    /***********************************************        WP HOOK         ***********************************************/
-
-
-    /**
-     *    wp - basically last chance to do stuff before headers sent
-     *
-     * @access    public
-     * @return    void
-     */
-    public function wp()
-    {
-    }
-
-
-
-    /***********************     GET_HEADER && WP_HEAD HOOK     ***********************/
-
-
-
-    /**
-     * callback for the "template_redirect" hook point
-     * checks sidebars for EE widgets
-     * loads resources and assets accordingly
-     *
-     * @return void
-     */
-    public function templateRedirect()
-    {
-        global $wp_query;
-        if (empty($wp_query->posts)){
-            return;
-        }
-        // if we already know this is an espresso page, then load assets
-        $load_assets = $this->Request_Handler->is_espresso_page();
-        // if we are already loading assets then just move along, otherwise check for widgets
-        $load_assets = $load_assets ? $load_assets : $this->espresso_widgets_in_active_sidebars();
-        if ( $load_assets){
-            add_action('wp_enqueue_scripts', array($this, 'enqueueStyle'), 10);
-            add_action('wp_print_footer_scripts', array($this, 'enqueueScripts'), 10);
-        }
-    }
-
-
-
-    /**
-     * builds list of active widgets then scans active sidebars looking for them
-     * returns true is an EE widget is found in an active sidebar
-     * Please Note: this does NOT mean that the sidebar or widget
-     * is actually in use in a given template, as that is unfortunately not known
-     * until a sidebar and it's widgets are actually loaded
-     *
-     * @return boolean
-     */
-    private function espresso_widgets_in_active_sidebars()
-    {
-        $espresso_widgets = array();
-        foreach ($this->Registry->widgets as $widget_class => $widget) {
-            $id_base = EspressoWidget::getIdBase($widget_class);
-            if (is_active_widget(false, false, $id_base)) {
-                $espresso_widgets[] = $id_base;
-            }
-        }
-        $all_sidebar_widgets = wp_get_sidebars_widgets();
-        foreach ($all_sidebar_widgets as $sidebar_name => $sidebar_widgets) {
-            if (is_array($sidebar_widgets) && ! empty($sidebar_widgets)) {
-                foreach ($sidebar_widgets as $sidebar_widget) {
-                    foreach ($espresso_widgets as $espresso_widget) {
-                        if (strpos($sidebar_widget, $espresso_widget) !== false) {
-                            return true;
-                        }
-                    }
-                }
-            }
-        }
-        return false;
-    }
-
-
-
-
-    /**
-     *    header_meta_tag
-     *
-     * @access    public
-     * @return    void
-     */
-    public function header_meta_tag()
-    {
-        print(
-            apply_filters(
-                'FHEE__EE_Front_Controller__header_meta_tag',
-                '<meta name="generator" content="Event Espresso Version ' . EVENT_ESPRESSO_VERSION . "\" />\n")
-        );
-
-        //let's exclude all event type taxonomy term archive pages from search engine indexing
-        //@see https://events.codebasehq.com/projects/event-espresso/tickets/10249
-        //also exclude all critical pages from indexing
-        if (
-            (
-                is_tax('espresso_event_type')
-                && get_option( 'blog_public' ) !== '0'
-            )
-            || is_page(EE_Registry::instance()->CFG->core->get_critical_pages_array())
-        ) {
-            print(
-                apply_filters(
-                    'FHEE__EE_Front_Controller__header_meta_tag__noindex_for_event_type',
-                    '<meta name="robots" content="noindex,follow" />' . "\n"
-                )
-            );
-        }
-    }
-
-
-
-    /**
-     * wp_print_scripts
-     *
-     * @return void
-     */
-    public function wp_print_scripts()
-    {
-        global $post;
-        if (
-            isset($post->EE_Event)
-            && $post->EE_Event instanceof EE_Event
-            && get_post_type() === 'espresso_events'
-            && is_singular()
-        ) {
-            \EEH_Schema::add_json_linked_data_for_event($post->EE_Event);
-        }
-    }
-
-
-
-    public function enqueueStyle()
-    {
-        wp_enqueue_style('espresso_default');
-        wp_enqueue_style('espresso_custom_css');
-    }
-
-
-
-
-    /***********************************************        THE_CONTENT FILTER HOOK         **********************************************
+
+
+
+	/***********************************************        WP_LOADED ACTION HOOK         ***********************************************/
+
+
+	/**
+	 *    wp_loaded - should fire after shortcode, module, addon, or other plugin's have been registered and their
+	 *    default priority init phases have run
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function wp_loaded()
+	{
+	}
+
+
+
+
+
+	/***********************************************        PARSE_REQUEST HOOK         ***********************************************/
+	/**
+	 *    _get_request
+	 *
+	 * @access public
+	 * @param WP $WP
+	 * @return void
+	 */
+	public function get_request(WP $WP)
+	{
+		do_action('AHEE__EE_Front_Controller__get_request__start');
+		$this->Request_Handler->parse_request($WP);
+		do_action('AHEE__EE_Front_Controller__get_request__complete');
+	}
+
+
+
+	/**
+	 *    pre_get_posts - basically a module factory for instantiating modules and selecting the final view template
+	 *
+	 * @access    public
+	 * @param   WP_Query $WP_Query
+	 * @return    void
+	 */
+	public function pre_get_posts($WP_Query)
+	{
+		// only load Module_Request_Router if this is the main query
+		if (
+			$this->Module_Request_Router instanceof EE_Module_Request_Router
+			&& $WP_Query->is_main_query()
+		) {
+			// cycle thru module routes
+			while ($route = $this->Module_Request_Router->get_route($WP_Query)) {
+				// determine module and method for route
+				$module = $this->Module_Request_Router->resolve_route($route[0], $route[1]);
+				if ($module instanceof EED_Module) {
+					// get registered view for route
+					$this->_template_path = $this->Module_Request_Router->get_view($route);
+					// grab module name
+					$module_name = $module->module_name();
+					// map the module to the module objects
+					$this->Registry->modules->{$module_name} = $module;
+				}
+			}
+		}
+	}
+
+
+
+
+
+	/***********************************************        WP HOOK         ***********************************************/
+
+
+	/**
+	 *    wp - basically last chance to do stuff before headers sent
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function wp()
+	{
+	}
+
+
+
+	/***********************     GET_HEADER && WP_HEAD HOOK     ***********************/
+
+
+
+	/**
+	 * callback for the "template_redirect" hook point
+	 * checks sidebars for EE widgets
+	 * loads resources and assets accordingly
+	 *
+	 * @return void
+	 */
+	public function templateRedirect()
+	{
+		global $wp_query;
+		if (empty($wp_query->posts)){
+			return;
+		}
+		// if we already know this is an espresso page, then load assets
+		$load_assets = $this->Request_Handler->is_espresso_page();
+		// if we are already loading assets then just move along, otherwise check for widgets
+		$load_assets = $load_assets ? $load_assets : $this->espresso_widgets_in_active_sidebars();
+		if ( $load_assets){
+			add_action('wp_enqueue_scripts', array($this, 'enqueueStyle'), 10);
+			add_action('wp_print_footer_scripts', array($this, 'enqueueScripts'), 10);
+		}
+	}
+
+
+
+	/**
+	 * builds list of active widgets then scans active sidebars looking for them
+	 * returns true is an EE widget is found in an active sidebar
+	 * Please Note: this does NOT mean that the sidebar or widget
+	 * is actually in use in a given template, as that is unfortunately not known
+	 * until a sidebar and it's widgets are actually loaded
+	 *
+	 * @return boolean
+	 */
+	private function espresso_widgets_in_active_sidebars()
+	{
+		$espresso_widgets = array();
+		foreach ($this->Registry->widgets as $widget_class => $widget) {
+			$id_base = EspressoWidget::getIdBase($widget_class);
+			if (is_active_widget(false, false, $id_base)) {
+				$espresso_widgets[] = $id_base;
+			}
+		}
+		$all_sidebar_widgets = wp_get_sidebars_widgets();
+		foreach ($all_sidebar_widgets as $sidebar_name => $sidebar_widgets) {
+			if (is_array($sidebar_widgets) && ! empty($sidebar_widgets)) {
+				foreach ($sidebar_widgets as $sidebar_widget) {
+					foreach ($espresso_widgets as $espresso_widget) {
+						if (strpos($sidebar_widget, $espresso_widget) !== false) {
+							return true;
+						}
+					}
+				}
+			}
+		}
+		return false;
+	}
+
+
+
+
+	/**
+	 *    header_meta_tag
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function header_meta_tag()
+	{
+		print(
+			apply_filters(
+				'FHEE__EE_Front_Controller__header_meta_tag',
+				'<meta name="generator" content="Event Espresso Version ' . EVENT_ESPRESSO_VERSION . "\" />\n")
+		);
+
+		//let's exclude all event type taxonomy term archive pages from search engine indexing
+		//@see https://events.codebasehq.com/projects/event-espresso/tickets/10249
+		//also exclude all critical pages from indexing
+		if (
+			(
+				is_tax('espresso_event_type')
+				&& get_option( 'blog_public' ) !== '0'
+			)
+			|| is_page(EE_Registry::instance()->CFG->core->get_critical_pages_array())
+		) {
+			print(
+				apply_filters(
+					'FHEE__EE_Front_Controller__header_meta_tag__noindex_for_event_type',
+					'<meta name="robots" content="noindex,follow" />' . "\n"
+				)
+			);
+		}
+	}
+
+
+
+	/**
+	 * wp_print_scripts
+	 *
+	 * @return void
+	 */
+	public function wp_print_scripts()
+	{
+		global $post;
+		if (
+			isset($post->EE_Event)
+			&& $post->EE_Event instanceof EE_Event
+			&& get_post_type() === 'espresso_events'
+			&& is_singular()
+		) {
+			\EEH_Schema::add_json_linked_data_for_event($post->EE_Event);
+		}
+	}
+
+
+
+	public function enqueueStyle()
+	{
+		wp_enqueue_style('espresso_default');
+		wp_enqueue_style('espresso_custom_css');
+	}
+
+
+
+
+	/***********************************************        THE_CONTENT FILTER HOOK         **********************************************
 
 
 
@@ -436,108 +436,108 @@ 
     //  * @param   $the_content
     //  * @return    string
     //  */
-    // public function the_content( $the_content ) {
-    // 	// nothing gets loaded at this point unless other systems turn this hookpoint on by using:  add_filter( 'FHEE_run_EE_the_content', '__return_true' );
-    // 	if ( apply_filters( 'FHEE_run_EE_the_content', FALSE ) ) {
-    // 	}
-    // 	return $the_content;
-    // }
-
-
-
-    /***********************************************        WP_FOOTER         ***********************************************/
-
-
-
-    public function enqueueScripts()
-    {
-        wp_enqueue_script('espresso_core');
-    }
-
-
-
-    /**
-     * display_errors
-     *
-     * @access public
-     * @return void
-     * @throws DomainException
-     */
-    public function display_errors()
-    {
-        static $shown_already = false;
-        do_action('AHEE__EE_Front_Controller__display_errors__begin');
-        if (
-            ! $shown_already
-            && apply_filters('FHEE__EE_Front_Controller__display_errors', true)
-            && is_main_query()
-            && ! is_feed()
-            && in_the_loop()
-            && $this->Request_Handler->is_espresso_page()
-        ) {
-            echo EE_Error::get_notices();
-            $shown_already = true;
-            EEH_Template::display_template(EE_TEMPLATES . 'espresso-ajax-notices.template.php');
-        }
-        do_action('AHEE__EE_Front_Controller__display_errors__end');
-    }
-
-
-
-
-
-    /***********************************************        UTILITIES         ***********************************************/
-    /**
-     *    template_include
-     *
-     * @access    public
-     * @param   string $template_include_path
-     * @return    string
-     */
-    public function template_include($template_include_path = null)
-    {
-        if ($this->Request_Handler->is_espresso_page()) {
-            $this->_template_path = ! empty($this->_template_path) ? basename($this->_template_path) : basename($template_include_path);
-            $template_path        = EEH_Template::locate_template($this->_template_path, array(), false);
-            $this->_template_path = ! empty($template_path) ? $template_path : $template_include_path;
-            $this->_template      = basename($this->_template_path);
-            return $this->_template_path;
-        }
-        return $template_include_path;
-    }
-
-
-    /**
-     *    get_selected_template
-     *
-     * @access    public
-     * @param bool $with_path
-     * @return    string
-     */
-    public function get_selected_template($with_path = false)
-    {
-        return $with_path ? $this->_template_path : $this->_template;
-    }
-
-
-
-    /**
-     * @deprecated 4.9.26
-     * @param string $shortcode_class
-     * @param \WP    $wp
-     */
-    public function initialize_shortcode($shortcode_class = '', WP $wp = null)
-    {
-        \EE_Error::doing_it_wrong(
-            __METHOD__,
-            __(
-                'Usage is deprecated. Please use \EventEspresso\core\services\shortcodes\LegacyShortcodesManager::initializeShortcode() instead.',
-                'event_espresso'
-            ),
-            '4.9.26'
-        );
-        $this->getLegacyShortcodesManager()->initializeShortcode($shortcode_class, $wp);
-    }
+	// public function the_content( $the_content ) {
+	// 	// nothing gets loaded at this point unless other systems turn this hookpoint on by using:  add_filter( 'FHEE_run_EE_the_content', '__return_true' );
+	// 	if ( apply_filters( 'FHEE_run_EE_the_content', FALSE ) ) {
+	// 	}
+	// 	return $the_content;
+	// }
+
+
+
+	/***********************************************        WP_FOOTER         ***********************************************/
+
+
+
+	public function enqueueScripts()
+	{
+		wp_enqueue_script('espresso_core');
+	}
+
+
+
+	/**
+	 * display_errors
+	 *
+	 * @access public
+	 * @return void
+	 * @throws DomainException
+	 */
+	public function display_errors()
+	{
+		static $shown_already = false;
+		do_action('AHEE__EE_Front_Controller__display_errors__begin');
+		if (
+			! $shown_already
+			&& apply_filters('FHEE__EE_Front_Controller__display_errors', true)
+			&& is_main_query()
+			&& ! is_feed()
+			&& in_the_loop()
+			&& $this->Request_Handler->is_espresso_page()
+		) {
+			echo EE_Error::get_notices();
+			$shown_already = true;
+			EEH_Template::display_template(EE_TEMPLATES . 'espresso-ajax-notices.template.php');
+		}
+		do_action('AHEE__EE_Front_Controller__display_errors__end');
+	}
+
+
+
+
+
+	/***********************************************        UTILITIES         ***********************************************/
+	/**
+	 *    template_include
+	 *
+	 * @access    public
+	 * @param   string $template_include_path
+	 * @return    string
+	 */
+	public function template_include($template_include_path = null)
+	{
+		if ($this->Request_Handler->is_espresso_page()) {
+			$this->_template_path = ! empty($this->_template_path) ? basename($this->_template_path) : basename($template_include_path);
+			$template_path        = EEH_Template::locate_template($this->_template_path, array(), false);
+			$this->_template_path = ! empty($template_path) ? $template_path : $template_include_path;
+			$this->_template      = basename($this->_template_path);
+			return $this->_template_path;
+		}
+		return $template_include_path;
+	}
+
+
+	/**
+	 *    get_selected_template
+	 *
+	 * @access    public
+	 * @param bool $with_path
+	 * @return    string
+	 */
+	public function get_selected_template($with_path = false)
+	{
+		return $with_path ? $this->_template_path : $this->_template;
+	}
+
+
+
+	/**
+	 * @deprecated 4.9.26
+	 * @param string $shortcode_class
+	 * @param \WP    $wp
+	 */
+	public function initialize_shortcode($shortcode_class = '', WP $wp = null)
+	{
+		\EE_Error::doing_it_wrong(
+			__METHOD__,
+			__(
+				'Usage is deprecated. Please use \EventEspresso\core\services\shortcodes\LegacyShortcodesManager::initializeShortcode() instead.',
+				'event_espresso'
+			),
+			'4.9.26'
+		);
+		$this->getLegacyShortcodesManager()->initializeShortcode($shortcode_class, $wp);
+	}
 
 }
 // End of file EE_Front_Controller.core.php

Spacing +6 added lines, -6 removed lines

@@ -310,14 +310,14 @@ 
     public function templateRedirect()
     {
         global $wp_query;
-        if (empty($wp_query->posts)){
+        if (empty($wp_query->posts)) {
             return;
         }
         // if we already know this is an espresso page, then load assets
         $load_assets = $this->Request_Handler->is_espresso_page();
         // if we are already loading assets then just move along, otherwise check for widgets
         $load_assets = $load_assets ? $load_assets : $this->espresso_widgets_in_active_sidebars();
-        if ( $load_assets){
+        if ($load_assets) {
             add_action('wp_enqueue_scripts', array($this, 'enqueueStyle'), 10);
             add_action('wp_print_footer_scripts', array($this, 'enqueueScripts'), 10);
         }
@@ -372,7 +372,7 @@ 
         print(
             apply_filters(
                 'FHEE__EE_Front_Controller__header_meta_tag',
-                '<meta name="generator" content="Event Espresso Version ' . EVENT_ESPRESSO_VERSION . "\" />\n")
+                '<meta name="generator" content="Event Espresso Version '.EVENT_ESPRESSO_VERSION."\" />\n")
         );
 
         //let's exclude all event type taxonomy term archive pages from search engine indexing
@@ -381,14 +381,14 @@ 
         if (
             (
                 is_tax('espresso_event_type')
-                && get_option( 'blog_public' ) !== '0'
+                && get_option('blog_public') !== '0'
             )
             || is_page(EE_Registry::instance()->CFG->core->get_critical_pages_array())
         ) {
             print(
                 apply_filters(
                     'FHEE__EE_Front_Controller__header_meta_tag__noindex_for_event_type',
-                    '<meta name="robots" content="noindex,follow" />' . "\n"
+                    '<meta name="robots" content="noindex,follow" />'."\n"
                 )
             );
         }
@@ -477,7 +477,7 @@ 
         ) {
             echo EE_Error::get_notices();
             $shown_already = true;
-            EEH_Template::display_template(EE_TEMPLATES . 'espresso-ajax-notices.template.php');
+            EEH_Template::display_template(EE_TEMPLATES.'espresso-ajax-notices.template.php');
         }
         do_action('AHEE__EE_Front_Controller__display_errors__end');
     }

espresso.php

Indentation +191 added lines, -191 removed lines

@@ -38,216 +38,216 @@
  * @since       4.0
  */
 if (function_exists('espresso_version')) {
-    if (! function_exists('espresso_duplicate_plugin_error')) {
-        /**
-         *    espresso_duplicate_plugin_error
-         *    displays if more than one version of EE is activated at the same time
-         */
-        function espresso_duplicate_plugin_error()
-        {
-            ?>
+	if (! function_exists('espresso_duplicate_plugin_error')) {
+		/**
+		 *    espresso_duplicate_plugin_error
+		 *    displays if more than one version of EE is activated at the same time
+		 */
+		function espresso_duplicate_plugin_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    echo esc_html__(
-                        'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
-                        'event_espresso'
-                    ); ?>
+					echo esc_html__(
+						'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
+						'event_espresso'
+					); ?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
-    }
-    add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
+	}
+	add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
 
 } else {
-    define('EE_MIN_PHP_VER_REQUIRED', '5.3.9');
-    if (! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
-        /**
-         * espresso_minimum_php_version_error
-         * @return void
-         */
-        function espresso_minimum_php_version_error()
-        {
-            ?>
+	define('EE_MIN_PHP_VER_REQUIRED', '5.3.9');
+	if (! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
+		/**
+		 * espresso_minimum_php_version_error
+		 * @return void
+		 */
+		function espresso_minimum_php_version_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    printf(
-                        esc_html__(
-                            'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
-                            'event_espresso'
-                        ),
-                        EE_MIN_PHP_VER_REQUIRED,
-                        PHP_VERSION,
-                        '<br/>',
-                        '<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
-                    );
-                    ?>
+					printf(
+						esc_html__(
+							'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
+							'event_espresso'
+						),
+						EE_MIN_PHP_VER_REQUIRED,
+						PHP_VERSION,
+						'<br/>',
+						'<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
+					);
+					?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
 
-        add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
-    } else {
-        define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
-        /**
-         * espresso_version
-         * Returns the plugin version
-         *
-         * @return string
-         */
-        function espresso_version()
-        {
-            return apply_filters('FHEE__espresso__espresso_version', '4.9.57.rc.004');
-        }
+		add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
+	} else {
+		define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
+		/**
+		 * espresso_version
+		 * Returns the plugin version
+		 *
+		 * @return string
+		 */
+		function espresso_version()
+		{
+			return apply_filters('FHEE__espresso__espresso_version', '4.9.57.rc.004');
+		}
 
-        /**
-         * espresso_plugin_activation
-         * adds a wp-option to indicate that EE has been activated via the WP admin plugins page
-         */
-        function espresso_plugin_activation()
-        {
-            update_option('ee_espresso_activation', true);
-        }
+		/**
+		 * espresso_plugin_activation
+		 * adds a wp-option to indicate that EE has been activated via the WP admin plugins page
+		 */
+		function espresso_plugin_activation()
+		{
+			update_option('ee_espresso_activation', true);
+		}
 
-        register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
-        /**
-         *    espresso_load_error_handling
-         *    this function loads EE's class for handling exceptions and errors
-         */
-        function espresso_load_error_handling()
-        {
-            static $error_handling_loaded = false;
-            if ($error_handling_loaded) {
-                return;
-            }
-            // load debugging tools
-            if (WP_DEBUG === true && is_readable(EE_HELPERS . 'EEH_Debug_Tools.helper.php')) {
-                require_once   EE_HELPERS . 'EEH_Debug_Tools.helper.php';
-                \EEH_Debug_Tools::instance();
-            }
-            // load error handling
-            if (is_readable(EE_CORE . 'EE_Error.core.php')) {
-                require_once EE_CORE . 'EE_Error.core.php';
-            } else {
-                wp_die(esc_html__('The EE_Error core class could not be loaded.', 'event_espresso'));
-            }
-            $error_handling_loaded = true;
-        }
+		register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
+		/**
+		 *    espresso_load_error_handling
+		 *    this function loads EE's class for handling exceptions and errors
+		 */
+		function espresso_load_error_handling()
+		{
+			static $error_handling_loaded = false;
+			if ($error_handling_loaded) {
+				return;
+			}
+			// load debugging tools
+			if (WP_DEBUG === true && is_readable(EE_HELPERS . 'EEH_Debug_Tools.helper.php')) {
+				require_once   EE_HELPERS . 'EEH_Debug_Tools.helper.php';
+				\EEH_Debug_Tools::instance();
+			}
+			// load error handling
+			if (is_readable(EE_CORE . 'EE_Error.core.php')) {
+				require_once EE_CORE . 'EE_Error.core.php';
+			} else {
+				wp_die(esc_html__('The EE_Error core class could not be loaded.', 'event_espresso'));
+			}
+			$error_handling_loaded = true;
+		}
 
-        /**
-         *    espresso_load_required
-         *    given a class name and path, this function will load that file or throw an exception
-         *
-         * @param    string $classname
-         * @param    string $full_path_to_file
-         * @throws    EE_Error
-         */
-        function espresso_load_required($classname, $full_path_to_file)
-        {
-            if (is_readable($full_path_to_file)) {
-                require_once $full_path_to_file;
-            } else {
-                throw new \EE_Error (
-                    sprintf(
-                        esc_html__(
-                            'The %s class file could not be located or is not readable due to file permissions.',
-                            'event_espresso'
-                        ),
-                        $classname
-                    )
-                );
-            }
-        }
+		/**
+		 *    espresso_load_required
+		 *    given a class name and path, this function will load that file or throw an exception
+		 *
+		 * @param    string $classname
+		 * @param    string $full_path_to_file
+		 * @throws    EE_Error
+		 */
+		function espresso_load_required($classname, $full_path_to_file)
+		{
+			if (is_readable($full_path_to_file)) {
+				require_once $full_path_to_file;
+			} else {
+				throw new \EE_Error (
+					sprintf(
+						esc_html__(
+							'The %s class file could not be located or is not readable due to file permissions.',
+							'event_espresso'
+						),
+						$classname
+					)
+				);
+			}
+		}
 
-        /**
-         * @since 4.9.27
-         * @throws \EE_Error
-         * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-         * @throws \EventEspresso\core\exceptions\InvalidEntityException
-         * @throws \EventEspresso\core\exceptions\InvalidIdentifierException
-         * @throws \EventEspresso\core\exceptions\InvalidClassException
-         * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-         * @throws \EventEspresso\core\services\container\exceptions\ServiceExistsException
-         * @throws \EventEspresso\core\services\container\exceptions\ServiceNotFoundException
-         * @throws \OutOfBoundsException
-         */
-        function bootstrap_espresso()
-        {
-            require_once __DIR__ . '/core/espresso_definitions.php';
-            try {
-                espresso_load_error_handling();
-                espresso_load_required(
-                    'EEH_Base',
-                    EE_CORE . 'helpers' . DS . 'EEH_Base.helper.php'
-                );
-                espresso_load_required(
-                    'EEH_File',
-                    EE_CORE . 'interfaces' . DS . 'EEHI_File.interface.php'
-                );
-                espresso_load_required(
-                    'EEH_File',
-                    EE_CORE . 'helpers' . DS . 'EEH_File.helper.php'
-                );
-                espresso_load_required(
-                    'EEH_Array',
-                    EE_CORE . 'helpers' . DS . 'EEH_Array.helper.php'
-                );
-                // instantiate and configure PSR4 autoloader
-                espresso_load_required(
-                    'Psr4Autoloader',
-                    EE_CORE . 'Psr4Autoloader.php'
-                );
-                espresso_load_required(
-                    'EE_Psr4AutoloaderInit',
-                    EE_CORE . 'EE_Psr4AutoloaderInit.core.php'
-                );
-                $AutoloaderInit = new EE_Psr4AutoloaderInit();
-                $AutoloaderInit->initializeAutoloader();
-                espresso_load_required(
-                    'EE_Request',
-                    EE_CORE . 'request_stack' . DS . 'EE_Request.core.php'
-                );
-                espresso_load_required(
-                    'EE_Response',
-                    EE_CORE . 'request_stack' . DS . 'EE_Response.core.php'
-                );
-                espresso_load_required(
-                    'EE_Bootstrap',
-                    EE_CORE . 'EE_Bootstrap.core.php'
-                );
-                // bootstrap EE and the request stack
-                new EE_Bootstrap(
-                    new EE_Request($_GET, $_POST, $_COOKIE),
-                    new EE_Response()
-                );
-            } catch (Exception $e) {
-                require_once EE_CORE . 'exceptions' . DS . 'ExceptionStackTraceDisplay.php';
-                new EventEspresso\core\exceptions\ExceptionStackTraceDisplay($e);
-            }
-        }
-        bootstrap_espresso();
-    }
+		/**
+		 * @since 4.9.27
+		 * @throws \EE_Error
+		 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+		 * @throws \EventEspresso\core\exceptions\InvalidEntityException
+		 * @throws \EventEspresso\core\exceptions\InvalidIdentifierException
+		 * @throws \EventEspresso\core\exceptions\InvalidClassException
+		 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+		 * @throws \EventEspresso\core\services\container\exceptions\ServiceExistsException
+		 * @throws \EventEspresso\core\services\container\exceptions\ServiceNotFoundException
+		 * @throws \OutOfBoundsException
+		 */
+		function bootstrap_espresso()
+		{
+			require_once __DIR__ . '/core/espresso_definitions.php';
+			try {
+				espresso_load_error_handling();
+				espresso_load_required(
+					'EEH_Base',
+					EE_CORE . 'helpers' . DS . 'EEH_Base.helper.php'
+				);
+				espresso_load_required(
+					'EEH_File',
+					EE_CORE . 'interfaces' . DS . 'EEHI_File.interface.php'
+				);
+				espresso_load_required(
+					'EEH_File',
+					EE_CORE . 'helpers' . DS . 'EEH_File.helper.php'
+				);
+				espresso_load_required(
+					'EEH_Array',
+					EE_CORE . 'helpers' . DS . 'EEH_Array.helper.php'
+				);
+				// instantiate and configure PSR4 autoloader
+				espresso_load_required(
+					'Psr4Autoloader',
+					EE_CORE . 'Psr4Autoloader.php'
+				);
+				espresso_load_required(
+					'EE_Psr4AutoloaderInit',
+					EE_CORE . 'EE_Psr4AutoloaderInit.core.php'
+				);
+				$AutoloaderInit = new EE_Psr4AutoloaderInit();
+				$AutoloaderInit->initializeAutoloader();
+				espresso_load_required(
+					'EE_Request',
+					EE_CORE . 'request_stack' . DS . 'EE_Request.core.php'
+				);
+				espresso_load_required(
+					'EE_Response',
+					EE_CORE . 'request_stack' . DS . 'EE_Response.core.php'
+				);
+				espresso_load_required(
+					'EE_Bootstrap',
+					EE_CORE . 'EE_Bootstrap.core.php'
+				);
+				// bootstrap EE and the request stack
+				new EE_Bootstrap(
+					new EE_Request($_GET, $_POST, $_COOKIE),
+					new EE_Response()
+				);
+			} catch (Exception $e) {
+				require_once EE_CORE . 'exceptions' . DS . 'ExceptionStackTraceDisplay.php';
+				new EventEspresso\core\exceptions\ExceptionStackTraceDisplay($e);
+			}
+		}
+		bootstrap_espresso();
+	}
 }
 if (! function_exists('espresso_deactivate_plugin')) {
-    /**
-     *    deactivate_plugin
-     * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
-     *
-     * @access public
-     * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
-     * @return    void
-     */
-    function espresso_deactivate_plugin($plugin_basename = '')
-    {
-        if (! function_exists('deactivate_plugins')) {
-            require_once ABSPATH . 'wp-admin/includes/plugin.php';
-        }
-        unset($_GET['activate'], $_REQUEST['activate']);
-        deactivate_plugins($plugin_basename);
-    }
+	/**
+	 *    deactivate_plugin
+	 * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
+	 *
+	 * @access public
+	 * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
+	 * @return    void
+	 */
+	function espresso_deactivate_plugin($plugin_basename = '')
+	{
+		if (! function_exists('deactivate_plugins')) {
+			require_once ABSPATH . 'wp-admin/includes/plugin.php';
+		}
+		unset($_GET['activate'], $_REQUEST['activate']);
+		deactivate_plugins($plugin_basename);
+	}
 }

core/db_classes/EE_Question_Group.class.php

Spacing +40 added lines, -40 removed lines

@@ -1,5 +1,5 @@ 
-<?php if ( !defined( 'EVENT_ESPRESSO_VERSION' ) ) {
-	exit( 'No direct script access allowed' );
+<?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {
+	exit('No direct script access allowed');
 }
 /**
  * Event Espresso
@@ -32,9 +32,9 @@ 
 	 * @param array $props_n_values
 	 * @return EE_Question_Group|mixed
 	 */
-	public static function new_instance( $props_n_values = array() ) {
-		$has_object = parent::_check_for_object( $props_n_values, __CLASS__ );
-		return $has_object ? $has_object : new self( $props_n_values );
+	public static function new_instance($props_n_values = array()) {
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__);
+		return $has_object ? $has_object : new self($props_n_values);
 	}
 
 
@@ -43,8 +43,8 @@ 
 	 * @param array $props_n_values
 	 * @return EE_Question_Group
 	 */
-	public static function new_instance_from_db( $props_n_values = array() ) {
-		return new self( $props_n_values, TRUE );
+	public static function new_instance_from_db($props_n_values = array()) {
+		return new self($props_n_values, TRUE);
 	}
 
 
@@ -55,8 +55,8 @@ 
 	 * @param bool $pretty
 	 * @return string
 	 */
-	public function name( $pretty = FALSE ) {
-		return $pretty ? $this->get_pretty( 'QSG_name' ) : $this->get( 'QSG_name' );
+	public function name($pretty = FALSE) {
+		return $pretty ? $this->get_pretty('QSG_name') : $this->get('QSG_name');
 	}
 
 
@@ -68,7 +68,7 @@ 
 	 * @return string
 	 */
 	public function identifier() {
-		return $this->get( 'QSG_identifier' );
+		return $this->get('QSG_identifier');
 	}
 
 
@@ -79,8 +79,8 @@ 
 	 * @param bool $pretty
 	 * @return string
 	 */
-	public function desc( $pretty = FALSE ) {
-		return $pretty ? $this->get_pretty( 'QSG_desc' ) : $this->get( 'QSG_desc' );
+	public function desc($pretty = FALSE) {
+		return $pretty ? $this->get_pretty('QSG_desc') : $this->get('QSG_desc');
 	}
 
 
@@ -92,7 +92,7 @@ 
 	 * @return int
 	 */
 	public function order() {
-		return $this->get( 'QSG_order' );
+		return $this->get('QSG_order');
 	}
 
 
@@ -103,7 +103,7 @@ 
 	 * @return boolean
 	 */
 	public function show_group_name() {
-		return $this->get( 'QSG_show_group_name' );
+		return $this->get('QSG_show_group_name');
 	}
 
 
@@ -115,7 +115,7 @@ 
 	 * @return boolean
 	 */
 	public function show_group_desc() {
-		return $this->get( 'QSG_show_group_desc' );
+		return $this->get('QSG_show_group_desc');
 	}
 
 
@@ -128,7 +128,7 @@ 
 	 * @return int
 	 */
 	public function system_group() {
-		return $this->get( 'QSG_system' );
+		return $this->get('QSG_system');
 	}
 
 
@@ -153,7 +153,7 @@ 
 	 * @return boolean
 	 */
 	public function deleted() {
-		return $this->get( 'QST_deleted' );
+		return $this->get('QST_deleted');
 	}
 
 
@@ -164,8 +164,8 @@ 
 	 */
 	public function questions_in_and_not_in_group() {
 		$questions_in_group = $this->questions();
-		$exclude_question_ids = ! empty( $questions_in_group ) ? array_keys( $questions_in_group ) : array();
-		$questions_not_in_group = $this->questions_not_in_group( $exclude_question_ids );
+		$exclude_question_ids = ! empty($questions_in_group) ? array_keys($questions_in_group) : array();
+		$questions_not_in_group = $this->questions_not_in_group($exclude_question_ids);
 		return $questions_in_group + $questions_not_in_group;
 	}
 
@@ -176,9 +176,9 @@ 
 	 * @param array $query_params
 	 * @return EE_Question[]
 	 */
-	public function questions( $query_params = array() ) {
-		$query_params = ! empty( $query_params ) ? $query_params : array( 'order_by' => array( 'Question_Group_Question.QGQ_order' => 'ASC' ) );
-		return $this->ID() ? $this->get_many_related( 'Question', $query_params ) : array();
+	public function questions($query_params = array()) {
+		$query_params = ! empty($query_params) ? $query_params : array('order_by' => array('Question_Group_Question.QGQ_order' => 'ASC'));
+		return $this->ID() ? $this->get_many_related('Question', $query_params) : array();
 	}
 
 
@@ -188,14 +188,14 @@ 
 	 * @param  mixed $question_IDS_in_group if empty array then all questions returned.  if FALSE then we first get questions in this group and exclude them from questions get all. IF empty array then we just return all questions.
 	 * @return EE_Question[]
 	 */
-	public function questions_not_in_group( $question_IDS_in_group = FALSE ) {
-		if ( $question_IDS_in_group === FALSE ) {
+	public function questions_not_in_group($question_IDS_in_group = FALSE) {
+		if ($question_IDS_in_group === FALSE) {
 			$questions = $this->questions();
-			$question_IDS_in_group = ! empty( $questions ) ? array_keys( $questions ) : array();
+			$question_IDS_in_group = ! empty($questions) ? array_keys($questions) : array();
 		}
-		$_where = ! empty( $question_IDS_in_group ) ? array( 'QST_ID' => array( 'not_in', $question_IDS_in_group ) ) : array();
+		$_where = ! empty($question_IDS_in_group) ? array('QST_ID' => array('not_in', $question_IDS_in_group)) : array();
 
-		return EEM_Question::instance()->get_all( array( $_where, 'order_by' => array( 'QST_ID' => 'ASC' ) ) );
+		return EEM_Question::instance()->get_all(array($_where, 'order_by' => array('QST_ID' => 'ASC')));
 	}
 
 
@@ -205,7 +205,7 @@ 
 	 * @return EE_Event[]
 	 */
 	public function events() {
-		return $this->get_many_related( 'Event' );
+		return $this->get_many_related('Event');
 	}
 
 
@@ -215,8 +215,8 @@ 
 	 * @param EE_Question || int $question object or ID
 	 * @return boolean if successful
 	 */
-	public function add_question( $questionObjectOrID ) {
-		return $this->_add_relation_to( $questionObjectOrID, 'Question' );
+	public function add_question($questionObjectOrID) {
+		return $this->_add_relation_to($questionObjectOrID, 'Question');
 	}
 
 
@@ -226,8 +226,8 @@ 
 	 * @param EE_Question || int $question object or ID
 	 * @return boolean of success
 	 */
-	public function remove_question( $questionObjectOrID ) {
-		return $this->_remove_relation_to( $questionObjectOrID, 'Question' );
+	public function remove_question($questionObjectOrID) {
+		return $this->_remove_relation_to($questionObjectOrID, 'Question');
 	}
 
 
@@ -237,9 +237,9 @@ 
 	 * @param $qst_order
 	 * @return int
 	 */
-	public function update_question_order( $questionObjectOrID, $qst_order ) {
-		$qst_ID = $questionObjectOrID instanceof EE_Question ? $questionObjectOrID->ID() : (int)$questionObjectOrID;
-		return EEM_Question_Group_Question::instance()->update( array( 'QGQ_order' => $qst_order ), array( array( 'QST_ID' => $qst_ID, 'QSG_ID' => $this->ID() ) ) );
+	public function update_question_order($questionObjectOrID, $qst_order) {
+		$qst_ID = $questionObjectOrID instanceof EE_Question ? $questionObjectOrID->ID() : (int) $questionObjectOrID;
+		return EEM_Question_Group_Question::instance()->update(array('QGQ_order' => $qst_order), array(array('QST_ID' => $qst_ID, 'QSG_ID' => $this->ID())));
 	}
 
 
@@ -250,9 +250,9 @@ 
 	 */
 	public function has_questions_with_answers() {
 		$has_answers = FALSE;
-		$questions = $this->get_many_related( 'Question' );
-		foreach ( $questions as $question ) {
-			if ( $question->count_related( 'Answer' ) > 0 )
+		$questions = $this->get_many_related('Question');
+		foreach ($questions as $question) {
+			if ($question->count_related('Answer') > 0)
 				$has_answers = TRUE;
 		}
 		return $has_answers;
@@ -268,7 +268,7 @@ 
 	 */
 	public function set_order_to_latest() {
 		$latest_order = $this->get_model()->get_latest_question_group_order();
-		$latest_order ++;
-		$this->set( 'QSG_order', $latest_order );
+		$latest_order++;
+		$this->set('QSG_order', $latest_order);
 	}
 }

core/db_classes/EE_Event.class.php

Indentation +1335 added lines, -1335 removed lines

@@ -4,7 +4,7 @@ 
 use EventEspresso\core\exceptions\UnexpectedEntityException;
 
 if (!defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -18,1339 +18,1339 @@ 
 class EE_Event extends EE_CPT_Base implements EEI_Line_Item_Object, EEI_Admin_Links, EEI_Has_Icon, EEI_Event
 {
 
-    /**
-     * cached value for the the logical active status for the event
-     *
-     * @see get_active_status()
-     * @var string
-     */
-    protected $_active_status = '';
-
-    /**
-     * This is just used for caching the Primary Datetime for the Event on initial retrieval
-     *
-     * @var EE_Datetime
-     */
-    protected $_Primary_Datetime;
-
-    /**
-     * @var EventSpacesCalculator $available_spaces_calculator
-     */
-    protected $available_spaces_calculator;
-
-
-    /**
-     * @param array $props_n_values incoming values
-     * @param string $timezone incoming timezone (if not set the timezone set for the website will be
-     *                                        used.)
-     * @param array $date_formats incoming date_formats in an array where the first value is the
-     *                                        date_format and the second value is the time format
-     * @return EE_Event
-     * @throws EE_Error
-     */
-    public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
-        return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
-    }
-
-
-    /**
-     * @param array $props_n_values incoming values from the database
-     * @param string $timezone incoming timezone as set by the model.  If not set the timezone for
-     *                                the website will be used.
-     * @return EE_Event
-     * @throws EE_Error
-     */
-    public static function new_instance_from_db($props_n_values = array(), $timezone = null)
-    {
-        return new self($props_n_values, true, $timezone);
-    }
-
-
-
-    /**
-     * @return EventSpacesCalculator
-     * @throws \EE_Error
-     */
-    public function getAvailableSpacesCalculator()
-    {
-        if(! $this->available_spaces_calculator instanceof EventSpacesCalculator){
-            $this->available_spaces_calculator = new EventSpacesCalculator($this);
-        }
-        return $this->available_spaces_calculator;
-    }
-
-
-
-    /**
-     * Overrides parent set() method so that all calls to set( 'status', $status ) can be routed to internal methods
-     *
-     * @param string $field_name
-     * @param mixed $field_value
-     * @param bool $use_default
-     * @throws EE_Error
-     */
-    public function set($field_name, $field_value, $use_default = false)
-    {
-        switch ($field_name) {
-            case 'status' :
-                $this->set_status($field_value, $use_default);
-                break;
-            default :
-                parent::set($field_name, $field_value, $use_default);
-        }
-    }
-
-
-    /**
-     *    set_status
-     * Checks if event status is being changed to SOLD OUT
-     * and updates event meta data with previous event status
-     * so that we can revert things if/when the event is no longer sold out
-     *
-     * @access public
-     * @param string $new_status
-     * @param bool $use_default
-     * @return void
-     * @throws EE_Error
-     */
-    public function set_status($new_status = null, $use_default = false)
-    {
-        // if nothing is set, and we aren't explicitly wanting to reset the status, then just leave
-        if (empty($new_status) && !$use_default) {
-            return;
-        }
-        // get current Event status
-        $old_status = $this->status();
-        // if status has changed
-        if ($old_status !== $new_status) {
-            // TO sold_out
-            if ($new_status === EEM_Event::sold_out) {
-                // save the previous event status so that we can revert if the event is no longer sold out
-                $this->add_post_meta('_previous_event_status', $old_status);
-                do_action('AHEE__EE_Event__set_status__to_sold_out', $this, $old_status, $new_status);
-                // OR FROM  sold_out
-            } else if ($old_status === EEM_Event::sold_out) {
-                $this->delete_post_meta('_previous_event_status');
-                do_action('AHEE__EE_Event__set_status__from_sold_out', $this, $old_status, $new_status);
-            }
-            //clear out the active status so that it gets reset the next time it is requested
-            $this->_active_status = null;
-            // update status
-            parent::set('status', $new_status, $use_default);
-            do_action('AHEE__EE_Event__set_status__after_update', $this);
-            return;
-        }
-        // even though the old value matches the new value, it's still good to
-        // allow the parent set method to have a say
-        parent::set('status', $new_status, $use_default);
-    }
-
-
-    /**
-     * Gets all the datetimes for this event
-     *
-     * @param array $query_params like EEM_Base::get_all
-     * @return EE_Base_Class[]|EE_Datetime[]
-     * @throws EE_Error
-     */
-    public function datetimes($query_params = array())
-    {
-        return $this->get_many_related('Datetime', $query_params);
-    }
-
-
-    /**
-     * Gets all the datetimes for this event, ordered by DTT_EVT_start in ascending order
-     *
-     * @return EE_Base_Class[]|EE_Datetime[]
-     * @throws EE_Error
-     */
-    public function datetimes_in_chronological_order()
-    {
-        return $this->get_many_related('Datetime', array('order_by' => array('DTT_EVT_start' => 'ASC')));
-    }
-
-
-    /**
-     * Gets all the datetimes for this event, ordered by the DTT_order on the datetime.
-     * @darren, we should probably UNSET timezone on the EEM_Datetime model
-     * after running our query, so that this timezone isn't set for EVERY query
-     * on EEM_Datetime for the rest of the request, no?
-     *
-     * @param boolean $show_expired whether or not to include expired events
-     * @param boolean $show_deleted whether or not to include deleted events
-     * @param null $limit
-     * @return EE_Datetime[]
-     * @throws EE_Error
-     */
-    public function datetimes_ordered($show_expired = true, $show_deleted = false, $limit = null)
-    {
-        return EEM_Datetime::instance($this->_timezone)->get_datetimes_for_event_ordered_by_DTT_order(
-            $this->ID(),
-            $show_expired,
-            $show_deleted,
-            $limit
-        );
-    }
-
-
-    /**
-     * Returns one related datetime. Mostly only used by some legacy code.
-     *
-     * @return EE_Base_Class|EE_Datetime
-     * @throws EE_Error
-     */
-    public function first_datetime()
-    {
-        return $this->get_first_related('Datetime');
-    }
-
-
-    /**
-     * Returns the 'primary' datetime for the event
-     *
-     * @param bool $try_to_exclude_expired
-     * @param bool $try_to_exclude_deleted
-     * @return EE_Datetime
-     * @throws EE_Error
-     */
-    public function primary_datetime($try_to_exclude_expired = true, $try_to_exclude_deleted = true)
-    {
-        if (!empty ($this->_Primary_Datetime)) {
-            return $this->_Primary_Datetime;
-        }
-        $this->_Primary_Datetime = EEM_Datetime::instance($this->_timezone)->get_primary_datetime_for_event(
-            $this->ID(),
-            $try_to_exclude_expired,
-            $try_to_exclude_deleted
-        );
-        return $this->_Primary_Datetime;
-    }
-
-
-    /**
-     * Gets all the tickets available for purchase of this event
-     *
-     * @param array $query_params like EEM_Base::get_all
-     * @return EE_Base_Class[]|EE_Ticket[]
-     * @throws EE_Error
-     */
-    public function tickets($query_params = array())
-    {
-        //first get all datetimes
-        $datetimes = $this->datetimes_ordered();
-        if (!$datetimes) {
-            return array();
-        }
-        $datetime_ids = array();
-        foreach ($datetimes as $datetime) {
-            $datetime_ids[] = $datetime->ID();
-        }
-        $where_params = array('Datetime.DTT_ID' => array('IN', $datetime_ids));
-        //if incoming $query_params has where conditions let's merge but not override existing.
-        if (is_array($query_params) && isset($query_params[0])) {
-            $where_params = array_merge($query_params[0], $where_params);
-            unset($query_params[0]);
-        }
-        //now add $where_params to $query_params
-        $query_params[0] = $where_params;
-        return EEM_Ticket::instance()->get_all($query_params);
-    }
-
-
-    /**
-     * get all unexpired untrashed tickets
-     *
-     * @return EE_Ticket[]
-     * @throws EE_Error
-     */
-    public function active_tickets()
-    {
-        return $this->tickets(array(
-            array(
-                'TKT_end_date' => array('>=', EEM_Ticket::instance()->current_time_for_query('TKT_end_date')),
-                'TKT_deleted' => false,
-            ),
-        ));
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function additional_limit()
-    {
-        return $this->get('EVT_additional_limit');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function allow_overflow()
-    {
-        return $this->get('EVT_allow_overflow');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function created()
-    {
-        return $this->get('EVT_created');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function description()
-    {
-        return $this->get('EVT_desc');
-    }
-
-
-    /**
-     * Runs do_shortcode and wpautop on the description
-     *
-     * @return string of html
-     * @throws EE_Error
-     */
-    public function description_filtered()
-    {
-        return $this->get_pretty('EVT_desc');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function display_description()
-    {
-        return $this->get('EVT_display_desc');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function display_ticket_selector()
-    {
-        return (bool)$this->get('EVT_display_ticket_selector');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function external_url()
-    {
-        return $this->get('EVT_external_URL');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function member_only()
-    {
-        return $this->get('EVT_member_only');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function phone()
-    {
-        return $this->get('EVT_phone');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function modified()
-    {
-        return $this->get('EVT_modified');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function name()
-    {
-        return $this->get('EVT_name');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function order()
-    {
-        return $this->get('EVT_order');
-    }
-
-
-    /**
-     * @return bool|string
-     * @throws EE_Error
-     */
-    public function default_registration_status()
-    {
-        $event_default_registration_status = $this->get('EVT_default_registration_status');
-        return !empty($event_default_registration_status)
-            ? $event_default_registration_status
-            : EE_Registry::instance()->CFG->registration->default_STS_ID;
-    }
-
-
-    /**
-     * @param int $num_words
-     * @param null $more
-     * @param bool $not_full_desc
-     * @return bool|string
-     * @throws EE_Error
-     */
-    public function short_description($num_words = 55, $more = null, $not_full_desc = false)
-    {
-        $short_desc = $this->get('EVT_short_desc');
-        if (!empty($short_desc) || $not_full_desc) {
-            return $short_desc;
-        }
-        $full_desc = $this->get('EVT_desc');
-        return wp_trim_words($full_desc, $num_words, $more);
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function slug()
-    {
-        return $this->get('EVT_slug');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function timezone_string()
-    {
-        return $this->get('EVT_timezone_string');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function visible_on()
-    {
-        return $this->get('EVT_visible_on');
-    }
-
-
-    /**
-     * @return int
-     * @throws EE_Error
-     */
-    public function wp_user()
-    {
-        return $this->get('EVT_wp_user');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function donations()
-    {
-        return $this->get('EVT_donations');
-    }
-
-
-    /**
-     * @param $limit
-     * @throws EE_Error
-     */
-    public function set_additional_limit($limit)
-    {
-        $this->set('EVT_additional_limit', $limit);
-    }
-
-
-    /**
-     * @param $created
-     * @throws EE_Error
-     */
-    public function set_created($created)
-    {
-        $this->set('EVT_created', $created);
-    }
-
-
-    /**
-     * @param $desc
-     * @throws EE_Error
-     */
-    public function set_description($desc)
-    {
-        $this->set('EVT_desc', $desc);
-    }
-
-
-    /**
-     * @param $display_desc
-     * @throws EE_Error
-     */
-    public function set_display_description($display_desc)
-    {
-        $this->set('EVT_display_desc', $display_desc);
-    }
-
-
-    /**
-     * @param $display_ticket_selector
-     * @throws EE_Error
-     */
-    public function set_display_ticket_selector($display_ticket_selector)
-    {
-        $this->set('EVT_display_ticket_selector', $display_ticket_selector);
-    }
-
-
-    /**
-     * @param $external_url
-     * @throws EE_Error
-     */
-    public function set_external_url($external_url)
-    {
-        $this->set('EVT_external_URL', $external_url);
-    }
-
-
-    /**
-     * @param $member_only
-     * @throws EE_Error
-     */
-    public function set_member_only($member_only)
-    {
-        $this->set('EVT_member_only', $member_only);
-    }
-
-
-    /**
-     * @param $event_phone
-     * @throws EE_Error
-     */
-    public function set_event_phone($event_phone)
-    {
-        $this->set('EVT_phone', $event_phone);
-    }
-
-
-    /**
-     * @param $modified
-     * @throws EE_Error
-     */
-    public function set_modified($modified)
-    {
-        $this->set('EVT_modified', $modified);
-    }
-
-
-    /**
-     * @param $name
-     * @throws EE_Error
-     */
-    public function set_name($name)
-    {
-        $this->set('EVT_name', $name);
-    }
-
-
-    /**
-     * @param $order
-     * @throws EE_Error
-     */
-    public function set_order($order)
-    {
-        $this->set('EVT_order', $order);
-    }
-
-
-    /**
-     * @param $short_desc
-     * @throws EE_Error
-     */
-    public function set_short_description($short_desc)
-    {
-        $this->set('EVT_short_desc', $short_desc);
-    }
-
-
-    /**
-     * @param $slug
-     * @throws EE_Error
-     */
-    public function set_slug($slug)
-    {
-        $this->set('EVT_slug', $slug);
-    }
-
-
-    /**
-     * @param $timezone_string
-     * @throws EE_Error
-     */
-    public function set_timezone_string($timezone_string)
-    {
-        $this->set('EVT_timezone_string', $timezone_string);
-    }
-
-
-    /**
-     * @param $visible_on
-     * @throws EE_Error
-     */
-    public function set_visible_on($visible_on)
-    {
-        $this->set('EVT_visible_on', $visible_on);
-    }
-
-
-    /**
-     * @param $wp_user
-     * @throws EE_Error
-     */
-    public function set_wp_user($wp_user)
-    {
-        $this->set('EVT_wp_user', $wp_user);
-    }
-
-
-    /**
-     * @param $default_registration_status
-     * @throws EE_Error
-     */
-    public function set_default_registration_status($default_registration_status)
-    {
-        $this->set('EVT_default_registration_status', $default_registration_status);
-    }
-
-
-    /**
-     * @param $donations
-     * @throws EE_Error
-     */
-    public function set_donations($donations)
-    {
-        $this->set('EVT_donations', $donations);
-    }
-
-
-    /**
-     * Adds a venue to this event
-     *
-     * @param EE_Venue /int $venue_id_or_obj
-     * @return EE_Base_Class|EE_Venue
-     * @throws EE_Error
-     */
-    public function add_venue($venue_id_or_obj)
-    {
-        return $this->_add_relation_to($venue_id_or_obj, 'Venue');
-    }
-
-
-    /**
-     * Removes a venue from the event
-     *
-     * @param EE_Venue /int $venue_id_or_obj
-     * @return EE_Base_Class|EE_Venue
-     * @throws EE_Error
-     */
-    public function remove_venue($venue_id_or_obj)
-    {
-        return $this->_remove_relation_to($venue_id_or_obj, 'Venue');
-    }
-
-
-    /**
-     * Gets all the venues related ot the event. May provide additional $query_params if desired
-     *
-     * @param array $query_params like EEM_Base::get_all's $query_params
-     * @return EE_Base_Class[]|EE_Venue[]
-     * @throws EE_Error
-     */
-    public function venues($query_params = array())
-    {
-        return $this->get_many_related('Venue', $query_params);
-    }
-
-
-    /**
-     * check if event id is present and if event is published
-     *
-     * @access public
-     * @return boolean true yes, false no
-     * @throws EE_Error
-     */
-    private function _has_ID_and_is_published()
-    {
-        // first check if event id is present and not NULL,
-        // then check if this event is published (or any of the equivalent "published" statuses)
-        return
-            $this->ID() && $this->ID() !== null
-            && (
-                $this->status() === 'publish'
-                || $this->status() === EEM_Event::sold_out
-                || $this->status() === EEM_Event::postponed
-                || $this->status() === EEM_Event::cancelled
-            );
-    }
-
-
-    /**
-     * This simply compares the internal dates with NOW and determines if the event is upcoming or not.
-     *
-     * @access public
-     * @return boolean true yes, false no
-     * @throws EE_Error
-     */
-    public function is_upcoming()
-    {
-        // check if event id is present and if this event is published
-        if ($this->is_inactive()) {
-            return false;
-        }
-        // set initial value
-        $upcoming = false;
-        //next let's get all datetimes and loop through them
-        $datetimes = $this->datetimes_in_chronological_order();
-        foreach ($datetimes as $datetime) {
-            if ($datetime instanceof EE_Datetime) {
-                //if this dtt is expired then we continue cause one of the other datetimes might be upcoming.
-                if ($datetime->is_expired()) {
-                    continue;
-                }
-                //if this dtt is active then we return false.
-                if ($datetime->is_active()) {
-                    return false;
-                }
-                //otherwise let's check upcoming status
-                $upcoming = $datetime->is_upcoming();
-            }
-        }
-        return $upcoming;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_active()
-    {
-        // check if event id is present and if this event is published
-        if ($this->is_inactive()) {
-            return false;
-        }
-        // set initial value
-        $active = false;
-        //next let's get all datetimes and loop through them
-        $datetimes = $this->datetimes_in_chronological_order();
-        foreach ($datetimes as $datetime) {
-            if ($datetime instanceof EE_Datetime) {
-                //if this dtt is expired then we continue cause one of the other datetimes might be active.
-                if ($datetime->is_expired()) {
-                    continue;
-                }
-                //if this dtt is upcoming then we return false.
-                if ($datetime->is_upcoming()) {
-                    return false;
-                }
-                //otherwise let's check active status
-                $active = $datetime->is_active();
-            }
-        }
-        return $active;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_expired()
-    {
-        // check if event id is present and if this event is published
-        if ($this->is_inactive()) {
-            return false;
-        }
-        // set initial value
-        $expired = false;
-        //first let's get all datetimes and loop through them
-        $datetimes = $this->datetimes_in_chronological_order();
-        foreach ($datetimes as $datetime) {
-            if ($datetime instanceof EE_Datetime) {
-                //if this dtt is upcoming or active then we return false.
-                if ($datetime->is_upcoming() || $datetime->is_active()) {
-                    return false;
-                }
-                //otherwise let's check active status
-                $expired = $datetime->is_expired();
-            }
-        }
-        return $expired;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_inactive()
-    {
-        // check if event id is present and if this event is published
-        if ($this->_has_ID_and_is_published()) {
-            return false;
-        }
-        return true;
-    }
-
-
-    /**
-     * calculate spaces remaining based on "saleable" tickets
-     *
-     * @param array $tickets
-     * @param bool $filtered
-     * @return int|float
-     * @throws EE_Error
-     * @throws DomainException
-     * @throws UnexpectedEntityException
-     */
-    public function spaces_remaining($tickets = array(), $filtered = true)
-    {
-        $this->getAvailableSpacesCalculator()->setActiveTickets($tickets);
-        $spaces_remaining = $this->getAvailableSpacesCalculator()->spacesRemaining();
-        return $filtered
-            ? apply_filters(
-                'FHEE_EE_Event__spaces_remaining',
-                $spaces_remaining,
-                $this,
-                $tickets
-            )
-            : $spaces_remaining;
-    }
-
-
-    /**
-     *    perform_sold_out_status_check
-     *    checks all of this events's datetime  reg_limit - sold values to determine if ANY datetimes have spaces available...
-     *    if NOT, then the event status will get toggled to 'sold_out'
-     *
-     * @return bool    return the ACTUAL sold out state.
-     * @throws EE_Error
-     * @throws DomainException
-     * @throws UnexpectedEntityException
-     */
-    public function perform_sold_out_status_check()
-    {
-        // get all unexpired untrashed tickets
-        $tickets = $this->tickets(
-            array(
-                array('TKT_deleted' => false),
-                'order_by' => array('TKT_qty' => 'ASC'),
-            )
-        );
-        $all_expired = true;
-        foreach ($tickets as $ticket) {
-            if(!$ticket->is_expired()){
-                $all_expired = false;
-                break;
-            }
-        }
-        // if all the tickets are just expired, then don't update the event status to sold out
-        if ($all_expired) {
-            return true;
-        }
-        $spaces_remaining = $this->spaces_remaining($tickets);
-        if ($spaces_remaining < 1) {
-            $this->set_status(EEM_Event::sold_out);
-            $this->save();
-            $sold_out = true;
-        } else {
-            $sold_out = false;
-            // was event previously marked as sold out ?
-            if ($this->status() === EEM_Event::sold_out) {
-                // revert status to previous value, if it was set
-                $previous_event_status = $this->get_post_meta('_previous_event_status', true);
-                if ($previous_event_status) {
-                    $this->set_status($previous_event_status);
-                    $this->save();
-                }
-            }
-        }
-        do_action('AHEE__EE_Event__perform_sold_out_status_check__end', $this, $sold_out, $spaces_remaining, $tickets);
-        return $sold_out;
-    }
-
-
-
-    /**
-     * This returns the total remaining spaces for sale on this event.
-     *
-     * @uses EE_Event::total_available_spaces()
-     * @return float|int
-     * @throws EE_Error
-     * @throws DomainException
-     * @throws UnexpectedEntityException
-     */
-    public function spaces_remaining_for_sale()
-    {
-        return $this->total_available_spaces(true);
-    }
-
-
-
-    /**
-     * This returns the total spaces available for an event
-     * while considering all the qtys on the tickets and the reg limits
-     * on the datetimes attached to this event.
-     *
-     * @param   bool $consider_sold Whether to consider any tickets that have already sold in our calculation.
-     *                              If this is false, then we return the most tickets that could ever be sold
-     *                              for this event with the datetime and tickets setup on the event under optimal
-     *                              selling conditions.  Otherwise we return a live calculation of spaces available
-     *                              based on tickets sold.  Depending on setup and stage of sales, this
-     *                              may appear to equal remaining tickets.  However, the more tickets are
-     *                              sold out, the more accurate the "live" total is.
-     * @return float|int
-     * @throws EE_Error
-     * @throws DomainException
-     * @throws UnexpectedEntityException
-     */
-    public function total_available_spaces($consider_sold = false)
-    {
-        $spaces_available = $consider_sold
-            ? $this->getAvailableSpacesCalculator()->spacesRemaining()
-            : $this->getAvailableSpacesCalculator()->totalSpacesAvailable();
-        return apply_filters(
-            'FHEE_EE_Event__total_available_spaces__spaces_available',
-            $spaces_available,
-            $this,
-            $this->getAvailableSpacesCalculator()->getDatetimes(),
-            $this->getAvailableSpacesCalculator()->getActiveTickets()
-        );
-    }
-
-
-    /**
-     * Checks if the event is set to sold out
-     *
-     * @param  bool $actual whether or not to perform calculations to not only figure the
-     *                      actual status but also to flip the status if necessary to sold
-     *                      out If false, we just check the existing status of the event
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function is_sold_out($actual = false)
-    {
-        if (!$actual) {
-            return $this->status() === EEM_Event::sold_out;
-        }
-        return $this->perform_sold_out_status_check();
-    }
-
-
-    /**
-     * Checks if the event is marked as postponed
-     *
-     * @return boolean
-     */
-    public function is_postponed()
-    {
-        return $this->status() === EEM_Event::postponed;
-    }
-
-
-    /**
-     * Checks if the event is marked as cancelled
-     *
-     * @return boolean
-     */
-    public function is_cancelled()
-    {
-        return $this->status() === EEM_Event::cancelled;
-    }
-
-
-    /**
-     * Get the logical active status in a hierarchical order for all the datetimes.  Note
-     * Basically, we order the datetimes by EVT_start_date.  Then first test on whether the event is published.  If its
-     * NOT published then we test for whether its expired or not.  IF it IS published then we test first on whether an
-     * event has any active dates.  If no active dates then we check for any upcoming dates.  If no upcoming dates then
-     * the event is considered expired.
-     * NOTE: this method does NOT calculate whether the datetimes are sold out when event is published.  Sold Out is a status
-     * set on the EVENT when it is not published and thus is done
-     *
-     * @param bool $reset
-     * @return bool | string - based on EE_Datetime active constants or FALSE if error.
-     * @throws EE_Error
-     */
-    public function get_active_status($reset = false)
-    {
-        // if the active status has already been set, then just use that value (unless we are resetting it)
-        if (!empty($this->_active_status) && !$reset) {
-            return $this->_active_status;
-        }
-        //first check if event id is present on this object
-        if (!$this->ID()) {
-            return false;
-        }
-        $where_params_for_event = array(array('EVT_ID' => $this->ID()));
-        //if event is published:
-        if ($this->status() === 'publish') {
-            //active?
-            if (EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::active, $where_params_for_event) > 0) {
-                $this->_active_status = EE_Datetime::active;
-            } else {
-                //upcoming?
-                if (EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::upcoming, $where_params_for_event) > 0) {
-                    $this->_active_status = EE_Datetime::upcoming;
-                } else {
-                    //expired?
-                    if (
-                        EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::expired, $where_params_for_event) > 0
-                    ) {
-                        $this->_active_status = EE_Datetime::expired;
-                    } else {
-                        //it would be odd if things make it this far because it basically means there are no datetime's
-                        //attached to the event.  So in this case it will just be considered inactive.
-                        $this->_active_status = EE_Datetime::inactive;
-                    }
-                }
-            }
-        } else {
-            //the event is not published, so let's just set it's active status according to its' post status
-            switch ($this->status()) {
-                case EEM_Event::sold_out :
-                    $this->_active_status = EE_Datetime::sold_out;
-                    break;
-                case EEM_Event::cancelled :
-                    $this->_active_status = EE_Datetime::cancelled;
-                    break;
-                case EEM_Event::postponed :
-                    $this->_active_status = EE_Datetime::postponed;
-                    break;
-                default :
-                    $this->_active_status = EE_Datetime::inactive;
-            }
-        }
-        return $this->_active_status;
-    }
-
-
-    /**
-     *    pretty_active_status
-     *
-     * @access public
-     * @param boolean $echo whether to return (FALSE), or echo out the result (TRUE)
-     * @return mixed void|string
-     * @throws EE_Error
-     */
-    public function pretty_active_status($echo = true)
-    {
-        $active_status = $this->get_active_status();
-        $status = '<span class="ee-status event-active-status-'
-            . $active_status
-            . '">'
-            . EEH_Template::pretty_status($active_status, false, 'sentence')
-            . '</span>';
-        if ($echo) {
-            echo $status;
-            return '';
-        }
-        return $status;
-    }
-
-
-    /**
-     * @return bool|int
-     * @throws EE_Error
-     */
-    public function get_number_of_tickets_sold()
-    {
-        $tkt_sold = 0;
-        if (!$this->ID()) {
-            return 0;
-        }
-        $datetimes = $this->datetimes();
-        foreach ($datetimes as $datetime) {
-            if ($datetime instanceof EE_Datetime) {
-                $tkt_sold += $datetime->sold();
-            }
-        }
-        return $tkt_sold;
-    }
-
-
-    /**
-     * This just returns a count of all the registrations for this event
-     *
-     * @access  public
-     * @return int
-     * @throws EE_Error
-     */
-    public function get_count_of_all_registrations()
-    {
-        return EEM_Event::instance()->count_related($this, 'Registration');
-    }
-
-
-    /**
-     * This returns the ticket with the earliest start time that is
-     * available for this event (across all datetimes attached to the event)
-     *
-     * @return EE_Base_Class|EE_Ticket|null
-     * @throws EE_Error
-     */
-    public function get_ticket_with_earliest_start_time()
-    {
-        $where['Datetime.EVT_ID'] = $this->ID();
-        $query_params = array($where, 'order_by' => array('TKT_start_date' => 'ASC'));
-        return EE_Registry::instance()->load_model('Ticket')->get_one($query_params);
-    }
-
-
-    /**
-     * This returns the ticket with the latest end time that is available
-     * for this event (across all datetimes attached to the event)
-     *
-     * @return EE_Base_Class|EE_Ticket|null
-     * @throws EE_Error
-     */
-    public function get_ticket_with_latest_end_time()
-    {
-        $where['Datetime.EVT_ID'] = $this->ID();
-        $query_params = array($where, 'order_by' => array('TKT_end_date' => 'DESC'));
-        return EE_Registry::instance()->load_model('Ticket')->get_one($query_params);
-    }
-
-
-    /**
-     * This returns whether there are any tickets on sale for this event.
-     *
-     * @return bool true = YES tickets on sale.
-     * @throws EE_Error
-     */
-    public function tickets_on_sale()
-    {
-        $earliest_ticket = $this->get_ticket_with_earliest_start_time();
-        $latest_ticket = $this->get_ticket_with_latest_end_time();
-        if (!$latest_ticket instanceof EE_Ticket && !$earliest_ticket instanceof EE_Ticket) {
-            return false;
-        }
-        //check on sale for these two tickets.
-        if ($latest_ticket->is_on_sale() || $earliest_ticket->is_on_sale()) {
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * Gets the URL for viewing this event on the front-end. Overrides parent
-     * to check for an external URL first
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function get_permalink()
-    {
-        if ($this->external_url()) {
-            return $this->external_url();
-        }
-        return parent::get_permalink();
-    }
-
-
-    /**
-     * Gets the first term for 'espresso_event_categories' we can find
-     *
-     * @param array $query_params like EEM_Base::get_all
-     * @return EE_Base_Class|EE_Term|null
-     * @throws EE_Error
-     */
-    public function first_event_category($query_params = array())
-    {
-        $query_params[0]['Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
-        $query_params[0]['Term_Taxonomy.Event.EVT_ID'] = $this->ID();
-        return EEM_Term::instance()->get_one($query_params);
-    }
-
-
-    /**
-     * Gets all terms for 'espresso_event_categories' we can find
-     *
-     * @param array $query_params
-     * @return EE_Base_Class[]|EE_Term[]
-     * @throws EE_Error
-     */
-    public function get_all_event_categories($query_params = array())
-    {
-        $query_params[0]['Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
-        $query_params[0]['Term_Taxonomy.Event.EVT_ID'] = $this->ID();
-        return EEM_Term::instance()->get_all($query_params);
-    }
-
-
-    /**
-     * Adds a question group to this event
-     *
-     * @param EE_Question_Group|int $question_group_id_or_obj
-     * @param bool                  $for_primary if true, the question group will be added for the primary
-     *                                           registrant, if false will be added for others. default: false
-     * @return EE_Base_Class|EE_Question_Group
-     * @throws EE_Error
-     */
-    public function add_question_group($question_group_id_or_obj, $for_primary = false)
-    {
-        $extra = $for_primary
-            ? array('EQG_primary' => 1)
-            : array();
-        return $this->_add_relation_to($question_group_id_or_obj, 'Question_Group', $extra);
-    }
-
-
-    /**
-     * Removes a question group from the event
-     *
-     * @param EE_Question_Group|int $question_group_id_or_obj
-     * @param bool                  $for_primary if true, the question group will be removed from the primary
-     *                                           registrant, if false will be removed from others. default: false
-     * @return EE_Base_Class|EE_Question_Group
-     * @throws EE_Error
-     */
-    public function remove_question_group($question_group_id_or_obj, $for_primary = false)
-    {
-        $where = $for_primary
-            ? array('EQG_primary' => 1)
-            : array();
-        return $this->_remove_relation_to($question_group_id_or_obj, 'Question_Group', $where);
-    }
-
-
-    /**
-     * Gets all the question groups, ordering them by QSG_order ascending
-     *
-     * @param array $query_params @see EEM_Base::get_all
-     * @return EE_Base_Class[]|EE_Question_Group[]
-     * @throws EE_Error
-     */
-    public function question_groups($query_params = array())
-    {
-        $query_params = !empty($query_params) ? $query_params : array('order_by' => array('QSG_order' => 'ASC'));
-        return $this->get_many_related('Question_Group', $query_params);
-    }
-
-
-    /**
-     * Implementation for EEI_Has_Icon interface method.
-     *
-     * @see EEI_Visual_Representation for comments
-     * @return string
-     */
-    public function get_icon()
-    {
-        return '<span class="dashicons dashicons-flag"></span>';
-    }
-
-
-    /**
-     * Implementation for EEI_Admin_Links interface method.
-     *
-     * @see EEI_Admin_Links for comments
-     * @return string
-     * @throws EE_Error
-     */
-    public function get_admin_details_link()
-    {
-        return $this->get_admin_edit_link();
-    }
-
-
-    /**
-     * Implementation for EEI_Admin_Links interface method.
-     *
-     * @see EEI_Admin_Links for comments
-     * @return string
-     * @throws EE_Error
-     */
-    public function get_admin_edit_link()
-    {
-        return EEH_URL::add_query_args_and_nonce(array(
-            'page' => 'espresso_events',
-            'action' => 'edit',
-            'post' => $this->ID(),
-        ),
-            admin_url('admin.php')
-        );
-    }
-
-
-    /**
-     * Implementation for EEI_Admin_Links interface method.
-     *
-     * @see EEI_Admin_Links for comments
-     * @return string
-     */
-    public function get_admin_settings_link()
-    {
-        return EEH_URL::add_query_args_and_nonce(array(
-            'page' => 'espresso_events',
-            'action' => 'default_event_settings',
-        ),
-            admin_url('admin.php')
-        );
-    }
-
-
-    /**
-     * Implementation for EEI_Admin_Links interface method.
-     *
-     * @see EEI_Admin_Links for comments
-     * @return string
-     */
-    public function get_admin_overview_link()
-    {
-        return EEH_URL::add_query_args_and_nonce(array(
-            'page' => 'espresso_events',
-            'action' => 'default',
-        ),
-            admin_url('admin.php')
-        );
-    }
+	/**
+	 * cached value for the the logical active status for the event
+	 *
+	 * @see get_active_status()
+	 * @var string
+	 */
+	protected $_active_status = '';
+
+	/**
+	 * This is just used for caching the Primary Datetime for the Event on initial retrieval
+	 *
+	 * @var EE_Datetime
+	 */
+	protected $_Primary_Datetime;
+
+	/**
+	 * @var EventSpacesCalculator $available_spaces_calculator
+	 */
+	protected $available_spaces_calculator;
+
+
+	/**
+	 * @param array $props_n_values incoming values
+	 * @param string $timezone incoming timezone (if not set the timezone set for the website will be
+	 *                                        used.)
+	 * @param array $date_formats incoming date_formats in an array where the first value is the
+	 *                                        date_format and the second value is the time format
+	 * @return EE_Event
+	 * @throws EE_Error
+	 */
+	public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
+		return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
+	}
+
+
+	/**
+	 * @param array $props_n_values incoming values from the database
+	 * @param string $timezone incoming timezone as set by the model.  If not set the timezone for
+	 *                                the website will be used.
+	 * @return EE_Event
+	 * @throws EE_Error
+	 */
+	public static function new_instance_from_db($props_n_values = array(), $timezone = null)
+	{
+		return new self($props_n_values, true, $timezone);
+	}
+
+
+
+	/**
+	 * @return EventSpacesCalculator
+	 * @throws \EE_Error
+	 */
+	public function getAvailableSpacesCalculator()
+	{
+		if(! $this->available_spaces_calculator instanceof EventSpacesCalculator){
+			$this->available_spaces_calculator = new EventSpacesCalculator($this);
+		}
+		return $this->available_spaces_calculator;
+	}
+
+
+
+	/**
+	 * Overrides parent set() method so that all calls to set( 'status', $status ) can be routed to internal methods
+	 *
+	 * @param string $field_name
+	 * @param mixed $field_value
+	 * @param bool $use_default
+	 * @throws EE_Error
+	 */
+	public function set($field_name, $field_value, $use_default = false)
+	{
+		switch ($field_name) {
+			case 'status' :
+				$this->set_status($field_value, $use_default);
+				break;
+			default :
+				parent::set($field_name, $field_value, $use_default);
+		}
+	}
+
+
+	/**
+	 *    set_status
+	 * Checks if event status is being changed to SOLD OUT
+	 * and updates event meta data with previous event status
+	 * so that we can revert things if/when the event is no longer sold out
+	 *
+	 * @access public
+	 * @param string $new_status
+	 * @param bool $use_default
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function set_status($new_status = null, $use_default = false)
+	{
+		// if nothing is set, and we aren't explicitly wanting to reset the status, then just leave
+		if (empty($new_status) && !$use_default) {
+			return;
+		}
+		// get current Event status
+		$old_status = $this->status();
+		// if status has changed
+		if ($old_status !== $new_status) {
+			// TO sold_out
+			if ($new_status === EEM_Event::sold_out) {
+				// save the previous event status so that we can revert if the event is no longer sold out
+				$this->add_post_meta('_previous_event_status', $old_status);
+				do_action('AHEE__EE_Event__set_status__to_sold_out', $this, $old_status, $new_status);
+				// OR FROM  sold_out
+			} else if ($old_status === EEM_Event::sold_out) {
+				$this->delete_post_meta('_previous_event_status');
+				do_action('AHEE__EE_Event__set_status__from_sold_out', $this, $old_status, $new_status);
+			}
+			//clear out the active status so that it gets reset the next time it is requested
+			$this->_active_status = null;
+			// update status
+			parent::set('status', $new_status, $use_default);
+			do_action('AHEE__EE_Event__set_status__after_update', $this);
+			return;
+		}
+		// even though the old value matches the new value, it's still good to
+		// allow the parent set method to have a say
+		parent::set('status', $new_status, $use_default);
+	}
+
+
+	/**
+	 * Gets all the datetimes for this event
+	 *
+	 * @param array $query_params like EEM_Base::get_all
+	 * @return EE_Base_Class[]|EE_Datetime[]
+	 * @throws EE_Error
+	 */
+	public function datetimes($query_params = array())
+	{
+		return $this->get_many_related('Datetime', $query_params);
+	}
+
+
+	/**
+	 * Gets all the datetimes for this event, ordered by DTT_EVT_start in ascending order
+	 *
+	 * @return EE_Base_Class[]|EE_Datetime[]
+	 * @throws EE_Error
+	 */
+	public function datetimes_in_chronological_order()
+	{
+		return $this->get_many_related('Datetime', array('order_by' => array('DTT_EVT_start' => 'ASC')));
+	}
+
+
+	/**
+	 * Gets all the datetimes for this event, ordered by the DTT_order on the datetime.
+	 * @darren, we should probably UNSET timezone on the EEM_Datetime model
+	 * after running our query, so that this timezone isn't set for EVERY query
+	 * on EEM_Datetime for the rest of the request, no?
+	 *
+	 * @param boolean $show_expired whether or not to include expired events
+	 * @param boolean $show_deleted whether or not to include deleted events
+	 * @param null $limit
+	 * @return EE_Datetime[]
+	 * @throws EE_Error
+	 */
+	public function datetimes_ordered($show_expired = true, $show_deleted = false, $limit = null)
+	{
+		return EEM_Datetime::instance($this->_timezone)->get_datetimes_for_event_ordered_by_DTT_order(
+			$this->ID(),
+			$show_expired,
+			$show_deleted,
+			$limit
+		);
+	}
+
+
+	/**
+	 * Returns one related datetime. Mostly only used by some legacy code.
+	 *
+	 * @return EE_Base_Class|EE_Datetime
+	 * @throws EE_Error
+	 */
+	public function first_datetime()
+	{
+		return $this->get_first_related('Datetime');
+	}
+
+
+	/**
+	 * Returns the 'primary' datetime for the event
+	 *
+	 * @param bool $try_to_exclude_expired
+	 * @param bool $try_to_exclude_deleted
+	 * @return EE_Datetime
+	 * @throws EE_Error
+	 */
+	public function primary_datetime($try_to_exclude_expired = true, $try_to_exclude_deleted = true)
+	{
+		if (!empty ($this->_Primary_Datetime)) {
+			return $this->_Primary_Datetime;
+		}
+		$this->_Primary_Datetime = EEM_Datetime::instance($this->_timezone)->get_primary_datetime_for_event(
+			$this->ID(),
+			$try_to_exclude_expired,
+			$try_to_exclude_deleted
+		);
+		return $this->_Primary_Datetime;
+	}
+
+
+	/**
+	 * Gets all the tickets available for purchase of this event
+	 *
+	 * @param array $query_params like EEM_Base::get_all
+	 * @return EE_Base_Class[]|EE_Ticket[]
+	 * @throws EE_Error
+	 */
+	public function tickets($query_params = array())
+	{
+		//first get all datetimes
+		$datetimes = $this->datetimes_ordered();
+		if (!$datetimes) {
+			return array();
+		}
+		$datetime_ids = array();
+		foreach ($datetimes as $datetime) {
+			$datetime_ids[] = $datetime->ID();
+		}
+		$where_params = array('Datetime.DTT_ID' => array('IN', $datetime_ids));
+		//if incoming $query_params has where conditions let's merge but not override existing.
+		if (is_array($query_params) && isset($query_params[0])) {
+			$where_params = array_merge($query_params[0], $where_params);
+			unset($query_params[0]);
+		}
+		//now add $where_params to $query_params
+		$query_params[0] = $where_params;
+		return EEM_Ticket::instance()->get_all($query_params);
+	}
+
+
+	/**
+	 * get all unexpired untrashed tickets
+	 *
+	 * @return EE_Ticket[]
+	 * @throws EE_Error
+	 */
+	public function active_tickets()
+	{
+		return $this->tickets(array(
+			array(
+				'TKT_end_date' => array('>=', EEM_Ticket::instance()->current_time_for_query('TKT_end_date')),
+				'TKT_deleted' => false,
+			),
+		));
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function additional_limit()
+	{
+		return $this->get('EVT_additional_limit');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function allow_overflow()
+	{
+		return $this->get('EVT_allow_overflow');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function created()
+	{
+		return $this->get('EVT_created');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function description()
+	{
+		return $this->get('EVT_desc');
+	}
+
+
+	/**
+	 * Runs do_shortcode and wpautop on the description
+	 *
+	 * @return string of html
+	 * @throws EE_Error
+	 */
+	public function description_filtered()
+	{
+		return $this->get_pretty('EVT_desc');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function display_description()
+	{
+		return $this->get('EVT_display_desc');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function display_ticket_selector()
+	{
+		return (bool)$this->get('EVT_display_ticket_selector');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function external_url()
+	{
+		return $this->get('EVT_external_URL');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function member_only()
+	{
+		return $this->get('EVT_member_only');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function phone()
+	{
+		return $this->get('EVT_phone');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function modified()
+	{
+		return $this->get('EVT_modified');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function name()
+	{
+		return $this->get('EVT_name');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function order()
+	{
+		return $this->get('EVT_order');
+	}
+
+
+	/**
+	 * @return bool|string
+	 * @throws EE_Error
+	 */
+	public function default_registration_status()
+	{
+		$event_default_registration_status = $this->get('EVT_default_registration_status');
+		return !empty($event_default_registration_status)
+			? $event_default_registration_status
+			: EE_Registry::instance()->CFG->registration->default_STS_ID;
+	}
+
+
+	/**
+	 * @param int $num_words
+	 * @param null $more
+	 * @param bool $not_full_desc
+	 * @return bool|string
+	 * @throws EE_Error
+	 */
+	public function short_description($num_words = 55, $more = null, $not_full_desc = false)
+	{
+		$short_desc = $this->get('EVT_short_desc');
+		if (!empty($short_desc) || $not_full_desc) {
+			return $short_desc;
+		}
+		$full_desc = $this->get('EVT_desc');
+		return wp_trim_words($full_desc, $num_words, $more);
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function slug()
+	{
+		return $this->get('EVT_slug');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function timezone_string()
+	{
+		return $this->get('EVT_timezone_string');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function visible_on()
+	{
+		return $this->get('EVT_visible_on');
+	}
+
+
+	/**
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function wp_user()
+	{
+		return $this->get('EVT_wp_user');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function donations()
+	{
+		return $this->get('EVT_donations');
+	}
+
+
+	/**
+	 * @param $limit
+	 * @throws EE_Error
+	 */
+	public function set_additional_limit($limit)
+	{
+		$this->set('EVT_additional_limit', $limit);
+	}
+
+
+	/**
+	 * @param $created
+	 * @throws EE_Error
+	 */
+	public function set_created($created)
+	{
+		$this->set('EVT_created', $created);
+	}
+
+
+	/**
+	 * @param $desc
+	 * @throws EE_Error
+	 */
+	public function set_description($desc)
+	{
+		$this->set('EVT_desc', $desc);
+	}
+
+
+	/**
+	 * @param $display_desc
+	 * @throws EE_Error
+	 */
+	public function set_display_description($display_desc)
+	{
+		$this->set('EVT_display_desc', $display_desc);
+	}
+
+
+	/**
+	 * @param $display_ticket_selector
+	 * @throws EE_Error
+	 */
+	public function set_display_ticket_selector($display_ticket_selector)
+	{
+		$this->set('EVT_display_ticket_selector', $display_ticket_selector);
+	}
+
+
+	/**
+	 * @param $external_url
+	 * @throws EE_Error
+	 */
+	public function set_external_url($external_url)
+	{
+		$this->set('EVT_external_URL', $external_url);
+	}
+
+
+	/**
+	 * @param $member_only
+	 * @throws EE_Error
+	 */
+	public function set_member_only($member_only)
+	{
+		$this->set('EVT_member_only', $member_only);
+	}
+
+
+	/**
+	 * @param $event_phone
+	 * @throws EE_Error
+	 */
+	public function set_event_phone($event_phone)
+	{
+		$this->set('EVT_phone', $event_phone);
+	}
+
+
+	/**
+	 * @param $modified
+	 * @throws EE_Error
+	 */
+	public function set_modified($modified)
+	{
+		$this->set('EVT_modified', $modified);
+	}
+
+
+	/**
+	 * @param $name
+	 * @throws EE_Error
+	 */
+	public function set_name($name)
+	{
+		$this->set('EVT_name', $name);
+	}
+
+
+	/**
+	 * @param $order
+	 * @throws EE_Error
+	 */
+	public function set_order($order)
+	{
+		$this->set('EVT_order', $order);
+	}
+
+
+	/**
+	 * @param $short_desc
+	 * @throws EE_Error
+	 */
+	public function set_short_description($short_desc)
+	{
+		$this->set('EVT_short_desc', $short_desc);
+	}
+
+
+	/**
+	 * @param $slug
+	 * @throws EE_Error
+	 */
+	public function set_slug($slug)
+	{
+		$this->set('EVT_slug', $slug);
+	}
+
+
+	/**
+	 * @param $timezone_string
+	 * @throws EE_Error
+	 */
+	public function set_timezone_string($timezone_string)
+	{
+		$this->set('EVT_timezone_string', $timezone_string);
+	}
+
+
+	/**
+	 * @param $visible_on
+	 * @throws EE_Error
+	 */
+	public function set_visible_on($visible_on)
+	{
+		$this->set('EVT_visible_on', $visible_on);
+	}
+
+
+	/**
+	 * @param $wp_user
+	 * @throws EE_Error
+	 */
+	public function set_wp_user($wp_user)
+	{
+		$this->set('EVT_wp_user', $wp_user);
+	}
+
+
+	/**
+	 * @param $default_registration_status
+	 * @throws EE_Error
+	 */
+	public function set_default_registration_status($default_registration_status)
+	{
+		$this->set('EVT_default_registration_status', $default_registration_status);
+	}
+
+
+	/**
+	 * @param $donations
+	 * @throws EE_Error
+	 */
+	public function set_donations($donations)
+	{
+		$this->set('EVT_donations', $donations);
+	}
+
+
+	/**
+	 * Adds a venue to this event
+	 *
+	 * @param EE_Venue /int $venue_id_or_obj
+	 * @return EE_Base_Class|EE_Venue
+	 * @throws EE_Error
+	 */
+	public function add_venue($venue_id_or_obj)
+	{
+		return $this->_add_relation_to($venue_id_or_obj, 'Venue');
+	}
+
+
+	/**
+	 * Removes a venue from the event
+	 *
+	 * @param EE_Venue /int $venue_id_or_obj
+	 * @return EE_Base_Class|EE_Venue
+	 * @throws EE_Error
+	 */
+	public function remove_venue($venue_id_or_obj)
+	{
+		return $this->_remove_relation_to($venue_id_or_obj, 'Venue');
+	}
+
+
+	/**
+	 * Gets all the venues related ot the event. May provide additional $query_params if desired
+	 *
+	 * @param array $query_params like EEM_Base::get_all's $query_params
+	 * @return EE_Base_Class[]|EE_Venue[]
+	 * @throws EE_Error
+	 */
+	public function venues($query_params = array())
+	{
+		return $this->get_many_related('Venue', $query_params);
+	}
+
+
+	/**
+	 * check if event id is present and if event is published
+	 *
+	 * @access public
+	 * @return boolean true yes, false no
+	 * @throws EE_Error
+	 */
+	private function _has_ID_and_is_published()
+	{
+		// first check if event id is present and not NULL,
+		// then check if this event is published (or any of the equivalent "published" statuses)
+		return
+			$this->ID() && $this->ID() !== null
+			&& (
+				$this->status() === 'publish'
+				|| $this->status() === EEM_Event::sold_out
+				|| $this->status() === EEM_Event::postponed
+				|| $this->status() === EEM_Event::cancelled
+			);
+	}
+
+
+	/**
+	 * This simply compares the internal dates with NOW and determines if the event is upcoming or not.
+	 *
+	 * @access public
+	 * @return boolean true yes, false no
+	 * @throws EE_Error
+	 */
+	public function is_upcoming()
+	{
+		// check if event id is present and if this event is published
+		if ($this->is_inactive()) {
+			return false;
+		}
+		// set initial value
+		$upcoming = false;
+		//next let's get all datetimes and loop through them
+		$datetimes = $this->datetimes_in_chronological_order();
+		foreach ($datetimes as $datetime) {
+			if ($datetime instanceof EE_Datetime) {
+				//if this dtt is expired then we continue cause one of the other datetimes might be upcoming.
+				if ($datetime->is_expired()) {
+					continue;
+				}
+				//if this dtt is active then we return false.
+				if ($datetime->is_active()) {
+					return false;
+				}
+				//otherwise let's check upcoming status
+				$upcoming = $datetime->is_upcoming();
+			}
+		}
+		return $upcoming;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_active()
+	{
+		// check if event id is present and if this event is published
+		if ($this->is_inactive()) {
+			return false;
+		}
+		// set initial value
+		$active = false;
+		//next let's get all datetimes and loop through them
+		$datetimes = $this->datetimes_in_chronological_order();
+		foreach ($datetimes as $datetime) {
+			if ($datetime instanceof EE_Datetime) {
+				//if this dtt is expired then we continue cause one of the other datetimes might be active.
+				if ($datetime->is_expired()) {
+					continue;
+				}
+				//if this dtt is upcoming then we return false.
+				if ($datetime->is_upcoming()) {
+					return false;
+				}
+				//otherwise let's check active status
+				$active = $datetime->is_active();
+			}
+		}
+		return $active;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_expired()
+	{
+		// check if event id is present and if this event is published
+		if ($this->is_inactive()) {
+			return false;
+		}
+		// set initial value
+		$expired = false;
+		//first let's get all datetimes and loop through them
+		$datetimes = $this->datetimes_in_chronological_order();
+		foreach ($datetimes as $datetime) {
+			if ($datetime instanceof EE_Datetime) {
+				//if this dtt is upcoming or active then we return false.
+				if ($datetime->is_upcoming() || $datetime->is_active()) {
+					return false;
+				}
+				//otherwise let's check active status
+				$expired = $datetime->is_expired();
+			}
+		}
+		return $expired;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_inactive()
+	{
+		// check if event id is present and if this event is published
+		if ($this->_has_ID_and_is_published()) {
+			return false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * calculate spaces remaining based on "saleable" tickets
+	 *
+	 * @param array $tickets
+	 * @param bool $filtered
+	 * @return int|float
+	 * @throws EE_Error
+	 * @throws DomainException
+	 * @throws UnexpectedEntityException
+	 */
+	public function spaces_remaining($tickets = array(), $filtered = true)
+	{
+		$this->getAvailableSpacesCalculator()->setActiveTickets($tickets);
+		$spaces_remaining = $this->getAvailableSpacesCalculator()->spacesRemaining();
+		return $filtered
+			? apply_filters(
+				'FHEE_EE_Event__spaces_remaining',
+				$spaces_remaining,
+				$this,
+				$tickets
+			)
+			: $spaces_remaining;
+	}
+
+
+	/**
+	 *    perform_sold_out_status_check
+	 *    checks all of this events's datetime  reg_limit - sold values to determine if ANY datetimes have spaces available...
+	 *    if NOT, then the event status will get toggled to 'sold_out'
+	 *
+	 * @return bool    return the ACTUAL sold out state.
+	 * @throws EE_Error
+	 * @throws DomainException
+	 * @throws UnexpectedEntityException
+	 */
+	public function perform_sold_out_status_check()
+	{
+		// get all unexpired untrashed tickets
+		$tickets = $this->tickets(
+			array(
+				array('TKT_deleted' => false),
+				'order_by' => array('TKT_qty' => 'ASC'),
+			)
+		);
+		$all_expired = true;
+		foreach ($tickets as $ticket) {
+			if(!$ticket->is_expired()){
+				$all_expired = false;
+				break;
+			}
+		}
+		// if all the tickets are just expired, then don't update the event status to sold out
+		if ($all_expired) {
+			return true;
+		}
+		$spaces_remaining = $this->spaces_remaining($tickets);
+		if ($spaces_remaining < 1) {
+			$this->set_status(EEM_Event::sold_out);
+			$this->save();
+			$sold_out = true;
+		} else {
+			$sold_out = false;
+			// was event previously marked as sold out ?
+			if ($this->status() === EEM_Event::sold_out) {
+				// revert status to previous value, if it was set
+				$previous_event_status = $this->get_post_meta('_previous_event_status', true);
+				if ($previous_event_status) {
+					$this->set_status($previous_event_status);
+					$this->save();
+				}
+			}
+		}
+		do_action('AHEE__EE_Event__perform_sold_out_status_check__end', $this, $sold_out, $spaces_remaining, $tickets);
+		return $sold_out;
+	}
+
+
+
+	/**
+	 * This returns the total remaining spaces for sale on this event.
+	 *
+	 * @uses EE_Event::total_available_spaces()
+	 * @return float|int
+	 * @throws EE_Error
+	 * @throws DomainException
+	 * @throws UnexpectedEntityException
+	 */
+	public function spaces_remaining_for_sale()
+	{
+		return $this->total_available_spaces(true);
+	}
+
+
+
+	/**
+	 * This returns the total spaces available for an event
+	 * while considering all the qtys on the tickets and the reg limits
+	 * on the datetimes attached to this event.
+	 *
+	 * @param   bool $consider_sold Whether to consider any tickets that have already sold in our calculation.
+	 *                              If this is false, then we return the most tickets that could ever be sold
+	 *                              for this event with the datetime and tickets setup on the event under optimal
+	 *                              selling conditions.  Otherwise we return a live calculation of spaces available
+	 *                              based on tickets sold.  Depending on setup and stage of sales, this
+	 *                              may appear to equal remaining tickets.  However, the more tickets are
+	 *                              sold out, the more accurate the "live" total is.
+	 * @return float|int
+	 * @throws EE_Error
+	 * @throws DomainException
+	 * @throws UnexpectedEntityException
+	 */
+	public function total_available_spaces($consider_sold = false)
+	{
+		$spaces_available = $consider_sold
+			? $this->getAvailableSpacesCalculator()->spacesRemaining()
+			: $this->getAvailableSpacesCalculator()->totalSpacesAvailable();
+		return apply_filters(
+			'FHEE_EE_Event__total_available_spaces__spaces_available',
+			$spaces_available,
+			$this,
+			$this->getAvailableSpacesCalculator()->getDatetimes(),
+			$this->getAvailableSpacesCalculator()->getActiveTickets()
+		);
+	}
+
+
+	/**
+	 * Checks if the event is set to sold out
+	 *
+	 * @param  bool $actual whether or not to perform calculations to not only figure the
+	 *                      actual status but also to flip the status if necessary to sold
+	 *                      out If false, we just check the existing status of the event
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function is_sold_out($actual = false)
+	{
+		if (!$actual) {
+			return $this->status() === EEM_Event::sold_out;
+		}
+		return $this->perform_sold_out_status_check();
+	}
+
+
+	/**
+	 * Checks if the event is marked as postponed
+	 *
+	 * @return boolean
+	 */
+	public function is_postponed()
+	{
+		return $this->status() === EEM_Event::postponed;
+	}
+
+
+	/**
+	 * Checks if the event is marked as cancelled
+	 *
+	 * @return boolean
+	 */
+	public function is_cancelled()
+	{
+		return $this->status() === EEM_Event::cancelled;
+	}
+
+
+	/**
+	 * Get the logical active status in a hierarchical order for all the datetimes.  Note
+	 * Basically, we order the datetimes by EVT_start_date.  Then first test on whether the event is published.  If its
+	 * NOT published then we test for whether its expired or not.  IF it IS published then we test first on whether an
+	 * event has any active dates.  If no active dates then we check for any upcoming dates.  If no upcoming dates then
+	 * the event is considered expired.
+	 * NOTE: this method does NOT calculate whether the datetimes are sold out when event is published.  Sold Out is a status
+	 * set on the EVENT when it is not published and thus is done
+	 *
+	 * @param bool $reset
+	 * @return bool | string - based on EE_Datetime active constants or FALSE if error.
+	 * @throws EE_Error
+	 */
+	public function get_active_status($reset = false)
+	{
+		// if the active status has already been set, then just use that value (unless we are resetting it)
+		if (!empty($this->_active_status) && !$reset) {
+			return $this->_active_status;
+		}
+		//first check if event id is present on this object
+		if (!$this->ID()) {
+			return false;
+		}
+		$where_params_for_event = array(array('EVT_ID' => $this->ID()));
+		//if event is published:
+		if ($this->status() === 'publish') {
+			//active?
+			if (EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::active, $where_params_for_event) > 0) {
+				$this->_active_status = EE_Datetime::active;
+			} else {
+				//upcoming?
+				if (EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::upcoming, $where_params_for_event) > 0) {
+					$this->_active_status = EE_Datetime::upcoming;
+				} else {
+					//expired?
+					if (
+						EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::expired, $where_params_for_event) > 0
+					) {
+						$this->_active_status = EE_Datetime::expired;
+					} else {
+						//it would be odd if things make it this far because it basically means there are no datetime's
+						//attached to the event.  So in this case it will just be considered inactive.
+						$this->_active_status = EE_Datetime::inactive;
+					}
+				}
+			}
+		} else {
+			//the event is not published, so let's just set it's active status according to its' post status
+			switch ($this->status()) {
+				case EEM_Event::sold_out :
+					$this->_active_status = EE_Datetime::sold_out;
+					break;
+				case EEM_Event::cancelled :
+					$this->_active_status = EE_Datetime::cancelled;
+					break;
+				case EEM_Event::postponed :
+					$this->_active_status = EE_Datetime::postponed;
+					break;
+				default :
+					$this->_active_status = EE_Datetime::inactive;
+			}
+		}
+		return $this->_active_status;
+	}
+
+
+	/**
+	 *    pretty_active_status
+	 *
+	 * @access public
+	 * @param boolean $echo whether to return (FALSE), or echo out the result (TRUE)
+	 * @return mixed void|string
+	 * @throws EE_Error
+	 */
+	public function pretty_active_status($echo = true)
+	{
+		$active_status = $this->get_active_status();
+		$status = '<span class="ee-status event-active-status-'
+			. $active_status
+			. '">'
+			. EEH_Template::pretty_status($active_status, false, 'sentence')
+			. '</span>';
+		if ($echo) {
+			echo $status;
+			return '';
+		}
+		return $status;
+	}
+
+
+	/**
+	 * @return bool|int
+	 * @throws EE_Error
+	 */
+	public function get_number_of_tickets_sold()
+	{
+		$tkt_sold = 0;
+		if (!$this->ID()) {
+			return 0;
+		}
+		$datetimes = $this->datetimes();
+		foreach ($datetimes as $datetime) {
+			if ($datetime instanceof EE_Datetime) {
+				$tkt_sold += $datetime->sold();
+			}
+		}
+		return $tkt_sold;
+	}
+
+
+	/**
+	 * This just returns a count of all the registrations for this event
+	 *
+	 * @access  public
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function get_count_of_all_registrations()
+	{
+		return EEM_Event::instance()->count_related($this, 'Registration');
+	}
+
+
+	/**
+	 * This returns the ticket with the earliest start time that is
+	 * available for this event (across all datetimes attached to the event)
+	 *
+	 * @return EE_Base_Class|EE_Ticket|null
+	 * @throws EE_Error
+	 */
+	public function get_ticket_with_earliest_start_time()
+	{
+		$where['Datetime.EVT_ID'] = $this->ID();
+		$query_params = array($where, 'order_by' => array('TKT_start_date' => 'ASC'));
+		return EE_Registry::instance()->load_model('Ticket')->get_one($query_params);
+	}
+
+
+	/**
+	 * This returns the ticket with the latest end time that is available
+	 * for this event (across all datetimes attached to the event)
+	 *
+	 * @return EE_Base_Class|EE_Ticket|null
+	 * @throws EE_Error
+	 */
+	public function get_ticket_with_latest_end_time()
+	{
+		$where['Datetime.EVT_ID'] = $this->ID();
+		$query_params = array($where, 'order_by' => array('TKT_end_date' => 'DESC'));
+		return EE_Registry::instance()->load_model('Ticket')->get_one($query_params);
+	}
+
+
+	/**
+	 * This returns whether there are any tickets on sale for this event.
+	 *
+	 * @return bool true = YES tickets on sale.
+	 * @throws EE_Error
+	 */
+	public function tickets_on_sale()
+	{
+		$earliest_ticket = $this->get_ticket_with_earliest_start_time();
+		$latest_ticket = $this->get_ticket_with_latest_end_time();
+		if (!$latest_ticket instanceof EE_Ticket && !$earliest_ticket instanceof EE_Ticket) {
+			return false;
+		}
+		//check on sale for these two tickets.
+		if ($latest_ticket->is_on_sale() || $earliest_ticket->is_on_sale()) {
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * Gets the URL for viewing this event on the front-end. Overrides parent
+	 * to check for an external URL first
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function get_permalink()
+	{
+		if ($this->external_url()) {
+			return $this->external_url();
+		}
+		return parent::get_permalink();
+	}
+
+
+	/**
+	 * Gets the first term for 'espresso_event_categories' we can find
+	 *
+	 * @param array $query_params like EEM_Base::get_all
+	 * @return EE_Base_Class|EE_Term|null
+	 * @throws EE_Error
+	 */
+	public function first_event_category($query_params = array())
+	{
+		$query_params[0]['Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
+		$query_params[0]['Term_Taxonomy.Event.EVT_ID'] = $this->ID();
+		return EEM_Term::instance()->get_one($query_params);
+	}
+
+
+	/**
+	 * Gets all terms for 'espresso_event_categories' we can find
+	 *
+	 * @param array $query_params
+	 * @return EE_Base_Class[]|EE_Term[]
+	 * @throws EE_Error
+	 */
+	public function get_all_event_categories($query_params = array())
+	{
+		$query_params[0]['Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
+		$query_params[0]['Term_Taxonomy.Event.EVT_ID'] = $this->ID();
+		return EEM_Term::instance()->get_all($query_params);
+	}
+
+
+	/**
+	 * Adds a question group to this event
+	 *
+	 * @param EE_Question_Group|int $question_group_id_or_obj
+	 * @param bool                  $for_primary if true, the question group will be added for the primary
+	 *                                           registrant, if false will be added for others. default: false
+	 * @return EE_Base_Class|EE_Question_Group
+	 * @throws EE_Error
+	 */
+	public function add_question_group($question_group_id_or_obj, $for_primary = false)
+	{
+		$extra = $for_primary
+			? array('EQG_primary' => 1)
+			: array();
+		return $this->_add_relation_to($question_group_id_or_obj, 'Question_Group', $extra);
+	}
+
+
+	/**
+	 * Removes a question group from the event
+	 *
+	 * @param EE_Question_Group|int $question_group_id_or_obj
+	 * @param bool                  $for_primary if true, the question group will be removed from the primary
+	 *                                           registrant, if false will be removed from others. default: false
+	 * @return EE_Base_Class|EE_Question_Group
+	 * @throws EE_Error
+	 */
+	public function remove_question_group($question_group_id_or_obj, $for_primary = false)
+	{
+		$where = $for_primary
+			? array('EQG_primary' => 1)
+			: array();
+		return $this->_remove_relation_to($question_group_id_or_obj, 'Question_Group', $where);
+	}
+
+
+	/**
+	 * Gets all the question groups, ordering them by QSG_order ascending
+	 *
+	 * @param array $query_params @see EEM_Base::get_all
+	 * @return EE_Base_Class[]|EE_Question_Group[]
+	 * @throws EE_Error
+	 */
+	public function question_groups($query_params = array())
+	{
+		$query_params = !empty($query_params) ? $query_params : array('order_by' => array('QSG_order' => 'ASC'));
+		return $this->get_many_related('Question_Group', $query_params);
+	}
+
+
+	/**
+	 * Implementation for EEI_Has_Icon interface method.
+	 *
+	 * @see EEI_Visual_Representation for comments
+	 * @return string
+	 */
+	public function get_icon()
+	{
+		return '<span class="dashicons dashicons-flag"></span>';
+	}
+
+
+	/**
+	 * Implementation for EEI_Admin_Links interface method.
+	 *
+	 * @see EEI_Admin_Links for comments
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function get_admin_details_link()
+	{
+		return $this->get_admin_edit_link();
+	}
+
+
+	/**
+	 * Implementation for EEI_Admin_Links interface method.
+	 *
+	 * @see EEI_Admin_Links for comments
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function get_admin_edit_link()
+	{
+		return EEH_URL::add_query_args_and_nonce(array(
+			'page' => 'espresso_events',
+			'action' => 'edit',
+			'post' => $this->ID(),
+		),
+			admin_url('admin.php')
+		);
+	}
+
+
+	/**
+	 * Implementation for EEI_Admin_Links interface method.
+	 *
+	 * @see EEI_Admin_Links for comments
+	 * @return string
+	 */
+	public function get_admin_settings_link()
+	{
+		return EEH_URL::add_query_args_and_nonce(array(
+			'page' => 'espresso_events',
+			'action' => 'default_event_settings',
+		),
+			admin_url('admin.php')
+		);
+	}
+
+
+	/**
+	 * Implementation for EEI_Admin_Links interface method.
+	 *
+	 * @see EEI_Admin_Links for comments
+	 * @return string
+	 */
+	public function get_admin_overview_link()
+	{
+		return EEH_URL::add_query_args_and_nonce(array(
+			'page' => 'espresso_events',
+			'action' => 'default',
+		),
+			admin_url('admin.php')
+		);
+	}
 
 }

modules/single_page_checkout/EED_Single_Page_Checkout.module.php

Indentation +1860 added lines, -1860 removed lines

@@ -5,7 +5,7 @@ 
 use EventEspresso\core\exceptions\InvalidEntityException;
 
 if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -20,1865 +20,1865 @@ 
 class EED_Single_Page_Checkout extends EED_Module
 {
 
-    /**
-     * $_initialized - has the SPCO controller already been initialized ?
-     *
-     * @access private
-     * @var bool $_initialized
-     */
-    private static $_initialized = false;
-
-
-    /**
-     * $_checkout_verified - is the EE_Checkout verified as correct for this request ?
-     *
-     * @access private
-     * @var bool $_valid_checkout
-     */
-    private static $_checkout_verified = true;
-
-    /**
-     *    $_reg_steps_array - holds initial array of reg steps
-     *
-     * @access private
-     * @var array $_reg_steps_array
-     */
-    private static $_reg_steps_array = array();
-
-    /**
-     *    $checkout - EE_Checkout object for handling the properties of the current checkout process
-     *
-     * @access public
-     * @var EE_Checkout $checkout
-     */
-    public $checkout;
-
-
-
-    /**
-     * @return EED_Module|EED_Single_Page_Checkout
-     */
-    public static function instance()
-    {
-        add_filter('EED_Single_Page_Checkout__SPCO_active', '__return_true');
-        return parent::get_instance(__CLASS__);
-    }
-
-
-
-    /**
-     * @return EE_CART
-     */
-    public function cart()
-    {
-        return $this->checkout->cart;
-    }
-
-
-
-    /**
-     * @return EE_Transaction
-     */
-    public function transaction()
-    {
-        return $this->checkout->transaction;
-    }
-
-
-
-    /**
-     *    set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function set_hooks()
-    {
-        EED_Single_Page_Checkout::set_definitions();
-    }
-
-
-
-    /**
-     *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function set_hooks_admin()
-    {
-        EED_Single_Page_Checkout::set_definitions();
-        if ( ! (defined('DOING_AJAX') && DOING_AJAX)) {
-            return;
-        }
-        // going to start an output buffer in case anything gets accidentally output
-        // that might disrupt our JSON response
-        ob_start();
-        EED_Single_Page_Checkout::load_request_handler();
-        EED_Single_Page_Checkout::load_reg_steps();
-        // set ajax hooks
-        add_action('wp_ajax_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
-        add_action('wp_ajax_nopriv_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
-        add_action('wp_ajax_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
-        add_action('wp_ajax_nopriv_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
-        add_action('wp_ajax_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
-        add_action('wp_ajax_nopriv_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
-    }
-
-
-
-    /**
-     *    process ajax request
-     *
-     * @param string $ajax_action
-     * @throws EE_Error
-     */
-    public static function process_ajax_request($ajax_action)
-    {
-        EE_Registry::instance()->REQ->set('action', $ajax_action);
-        EED_Single_Page_Checkout::instance()->_initialize();
-    }
-
-
-
-    /**
-     *    ajax display registration step
-     *
-     * @throws EE_Error
-     */
-    public static function display_reg_step()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('display_spco_reg_step');
-    }
-
-
-
-    /**
-     *    ajax process registration step
-     *
-     * @throws EE_Error
-     */
-    public static function process_reg_step()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('process_reg_step');
-    }
-
-
-
-    /**
-     *    ajax process registration step
-     *
-     * @throws EE_Error
-     */
-    public static function update_reg_step()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('update_reg_step');
-    }
-
-
-
-    /**
-     *   update_checkout
-     *
-     * @access public
-     * @return void
-     * @throws EE_Error
-     */
-    public static function update_checkout()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('update_checkout');
-    }
-
-
-
-    /**
-     *    load_request_handler
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function load_request_handler()
-    {
-        // load core Request_Handler class
-        if (EE_Registry::instance()->REQ !== null) {
-            EE_Registry::instance()->load_core('Request_Handler');
-        }
-    }
-
-
-
-    /**
-     *    set_definitions
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function set_definitions()
-    {
-        if(defined('SPCO_BASE_PATH')) {
-            return;
-        }
-        define(
-            'SPCO_BASE_PATH',
-            rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS
-        );
-        define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
-        define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
-        define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
-        define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
-        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
-        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
-        EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
-            __('%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please accept our apologies for any inconvenience this may have caused.%8$s',
-                'event_espresso'),
-            '<h4 class="important-notice">',
-            '</h4>',
-            '<br />',
-            '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
-            '">',
-            '</a>',
-            '</p>'
-        );
-    }
-
-
-
-    /**
-     * load_reg_steps
-     * loads and instantiates each reg step based on the EE_Registry::instance()->CFG->registration->reg_steps array
-     *
-     * @access    private
-     * @throws EE_Error
-     */
-    public static function load_reg_steps()
-    {
-        static $reg_steps_loaded = false;
-        if ($reg_steps_loaded) {
-            return;
-        }
-        // filter list of reg_steps
-        $reg_steps_to_load = (array)apply_filters(
-            'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
-            EED_Single_Page_Checkout::get_reg_steps()
-        );
-        // sort by key (order)
-        ksort($reg_steps_to_load);
-        // loop through folders
-        foreach ($reg_steps_to_load as $order => $reg_step) {
-            // we need a
-            if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
-                // copy over to the reg_steps_array
-                EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
-                // register custom key route for each reg step
-                // ie: step=>"slug" - this is the entire reason we load the reg steps array now
-                EE_Config::register_route(
-                    $reg_step['slug'],
-                    'EED_Single_Page_Checkout',
-                    'run',
-                    'step'
-                );
-                // add AJAX or other hooks
-                if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
-                    // setup autoloaders if necessary
-                    if ( ! class_exists($reg_step['class_name'])) {
-                        EEH_Autoloader::register_autoloaders_for_each_file_in_folder(
-                            $reg_step['file_path'],
-                            true
-                        );
-                    }
-                    if (is_callable($reg_step['class_name'], 'set_hooks')) {
-                        call_user_func(array($reg_step['class_name'], 'set_hooks'));
-                    }
-                }
-            }
-        }
-        $reg_steps_loaded = true;
-    }
-
-
-
-    /**
-     *    get_reg_steps
-     *
-     * @access    public
-     * @return    array
-     */
-    public static function get_reg_steps()
-    {
-        $reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
-        if (empty($reg_steps)) {
-            $reg_steps = array(
-                10  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
-                    'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
-                    'slug'       => 'attendee_information',
-                    'has_hooks'  => false,
-                ),
-                20  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
-                    'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
-                    'slug'       => 'registration_confirmation',
-                    'has_hooks'  => false,
-                ),
-                30  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
-                    'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
-                    'slug'       => 'payment_options',
-                    'has_hooks'  => true,
-                ),
-                999 => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
-                    'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
-                    'slug'       => 'finalize_registration',
-                    'has_hooks'  => false,
-                ),
-            );
-        }
-        return $reg_steps;
-    }
-
-
-
-    /**
-     *    registration_checkout_for_admin
-     *
-     * @access    public
-     * @return    string
-     * @throws EE_Error
-     */
-    public static function registration_checkout_for_admin()
-    {
-        EED_Single_Page_Checkout::load_request_handler();
-        EE_Registry::instance()->REQ->set('step', 'attendee_information');
-        EE_Registry::instance()->REQ->set('action', 'display_spco_reg_step');
-        EE_Registry::instance()->REQ->set('process_form_submission', false);
-        EED_Single_Page_Checkout::instance()->_initialize();
-        EED_Single_Page_Checkout::instance()->_display_spco_reg_form();
-        return EE_Registry::instance()->REQ->get_output();
-    }
-
-
-
-    /**
-     * process_registration_from_admin
-     *
-     * @access public
-     * @return \EE_Transaction
-     * @throws EE_Error
-     */
-    public static function process_registration_from_admin()
-    {
-        EED_Single_Page_Checkout::load_request_handler();
-        EE_Registry::instance()->REQ->set('step', 'attendee_information');
-        EE_Registry::instance()->REQ->set('action', 'process_reg_step');
-        EE_Registry::instance()->REQ->set('process_form_submission', true);
-        EED_Single_Page_Checkout::instance()->_initialize();
-        if (EED_Single_Page_Checkout::instance()->checkout->current_step->completed()) {
-            $final_reg_step = end(EED_Single_Page_Checkout::instance()->checkout->reg_steps);
-            if ($final_reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
-                EED_Single_Page_Checkout::instance()->checkout->set_reg_step_initiated($final_reg_step);
-                if ($final_reg_step->process_reg_step()) {
-                    $final_reg_step->set_completed();
-                    EED_Single_Page_Checkout::instance()->checkout->update_txn_reg_steps_array();
-                    return EED_Single_Page_Checkout::instance()->checkout->transaction;
-                }
-            }
-        }
-        return null;
-    }
-
-
-
-    /**
-     *    run
-     *
-     * @access    public
-     * @param WP_Query $WP_Query
-     * @return    void
-     * @throws EE_Error
-     */
-    public function run($WP_Query)
-    {
-        if (
-            $WP_Query instanceof WP_Query
-            && $WP_Query->is_main_query()
-            && apply_filters('FHEE__EED_Single_Page_Checkout__run', true)
-            && $this->_is_reg_checkout()
-        ) {
-            $this->_initialize();
-        }
-    }
-
-
-
-    /**
-     * determines whether current url matches reg page url
-     *
-     * @return bool
-     */
-    protected function _is_reg_checkout()
-    {
-        // get current permalink for reg page without any extra query args
-        $reg_page_url = \get_permalink(EE_Config::instance()->core->reg_page_id);
-        // get request URI for current request, but without the scheme or host
-        $current_request_uri = \EEH_URL::filter_input_server_url('REQUEST_URI');
-        $current_request_uri = html_entity_decode($current_request_uri);
-        // get array of query args from the current request URI
-        $query_args = \EEH_URL::get_query_string($current_request_uri);
-        // grab page id if it is set
-        $page_id = isset($query_args['page_id']) ? absint($query_args['page_id']) : 0;
-        // and remove the page id from the query args (we will re-add it later)
-        unset($query_args['page_id']);
-        // now strip all query args from current request URI
-        $current_request_uri = remove_query_arg(array_keys($query_args), $current_request_uri);
-        // and re-add the page id if it was set
-        if ($page_id) {
-            $current_request_uri = add_query_arg('page_id', $page_id, $current_request_uri);
-        }
-        // remove slashes and ?
-        $current_request_uri = trim($current_request_uri, '?/');
-        // is current request URI part of the known full reg page URL ?
-        return ! empty($current_request_uri) && strpos($reg_page_url, $current_request_uri) !== false;
-    }
-
-
-
-    /**
-     * @param WP_Query $wp_query
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function init($wp_query)
-    {
-        EED_Single_Page_Checkout::instance()->run($wp_query);
-    }
-
-
-
-    /**
-     *    _initialize - initial module setup
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    void
-     */
-    private function _initialize()
-    {
-        // ensure SPCO doesn't run twice
-        if (EED_Single_Page_Checkout::$_initialized) {
-            return;
-        }
-        try {
-            EED_Single_Page_Checkout::load_reg_steps();
-            $this->_verify_session();
-            // setup the EE_Checkout object
-            $this->checkout = $this->_initialize_checkout();
-            // filter checkout
-            $this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
-            // get the $_GET
-            $this->_get_request_vars();
-            if ($this->_block_bots()) {
-                return;
-            }
-            // filter continue_reg
-            $this->checkout->continue_reg = apply_filters(
-                'FHEE__EED_Single_Page_Checkout__init___continue_reg',
-                true,
-                $this->checkout
-            );
-            // load the reg steps array
-            if ( ! $this->_load_and_instantiate_reg_steps()) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // set the current step
-            $this->checkout->set_current_step($this->checkout->step);
-            // and the next step
-            $this->checkout->set_next_step();
-            // verify that everything has been setup correctly
-            if ( ! ($this->_verify_transaction_and_get_registrations() && $this->_final_verifications())) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // lock the transaction
-            $this->checkout->transaction->lock();
-            // make sure all of our cached objects are added to their respective model entity mappers
-            $this->checkout->refresh_all_entities();
-            // set amount owing
-            $this->checkout->amount_owing = $this->checkout->transaction->remaining();
-            // initialize each reg step, which gives them the chance to potentially alter the process
-            $this->_initialize_reg_steps();
-            // DEBUG LOG
-            //$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
-            // get reg form
-            if( ! $this->_check_form_submission()) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // checkout the action!!!
-            $this->_process_form_action();
-            // add some style and make it dance
-            $this->add_styles_and_scripts();
-            // kk... SPCO has successfully run
-            EED_Single_Page_Checkout::$_initialized = true;
-            // set no cache headers and constants
-            EE_System::do_not_cache();
-            // add anchor
-            add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
-            // remove transaction lock
-            add_action('shutdown', array($this, 'unlock_transaction'), 1);
-        } catch (Exception $e) {
-            EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
-        }
-    }
-
-
-
-    /**
-     *    _verify_session
-     * checks that the session is valid and not expired
-     *
-     * @access    private
-     * @throws EE_Error
-     */
-    private function _verify_session()
-    {
-        if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
-            throw new EE_Error(__('The EE_Session class could not be loaded.', 'event_espresso'));
-        }
-        $clear_session_requested = filter_var(
-            EE_Registry::instance()->REQ->get('clear_session', false),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // is session still valid ?
-        if ($clear_session_requested
-            || ( EE_Registry::instance()->SSN->expired()
-              && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === ''
-            )
-        ) {
-            $this->checkout = new EE_Checkout();
-            EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-            // EE_Registry::instance()->SSN->reset_cart();
-            // EE_Registry::instance()->SSN->reset_checkout();
-            // EE_Registry::instance()->SSN->reset_transaction();
-            if (! $clear_session_requested) {
-                EE_Error::add_attention(
-                    EE_Registry::$i18n_js_strings['registration_expiration_notice'],
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-            }
-            // EE_Registry::instance()->SSN->reset_expired();
-        }
-    }
-
-
-
-    /**
-     *    _initialize_checkout
-     * loads and instantiates EE_Checkout
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return EE_Checkout
-     */
-    private function _initialize_checkout()
-    {
-        // look in session for existing checkout
-        /** @type EE_Checkout $checkout */
-        $checkout = EE_Registry::instance()->SSN->checkout();
-        // verify
-        if ( ! $checkout instanceof EE_Checkout) {
-            // instantiate EE_Checkout object for handling the properties of the current checkout process
-            $checkout = EE_Registry::instance()->load_file(
-                SPCO_INC_PATH,
-                'EE_Checkout',
-                'class', array(),
-                false
-            );
-        } else {
-            if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
-                $this->unlock_transaction();
-                wp_safe_redirect($checkout->redirect_url);
-                exit();
-            }
-        }
-        $checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
-        // verify again
-        if ( ! $checkout instanceof EE_Checkout) {
-            throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
-        }
-        // reset anything that needs a clean slate for each request
-        $checkout->reset_for_current_request();
-        return $checkout;
-    }
-
-
-
-    /**
-     *    _get_request_vars
-     *
-     * @access    private
-     * @return    void
-     * @throws EE_Error
-     */
-    private function _get_request_vars()
-    {
-        // load classes
-        EED_Single_Page_Checkout::load_request_handler();
-        //make sure this request is marked as belonging to EE
-        EE_Registry::instance()->REQ->set_espresso_page(true);
-        // which step is being requested ?
-        $this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
-        // which step is being edited ?
-        $this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
-        // and what we're doing on the current step
-        $this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
-        // timestamp
-        $this->checkout->uts = EE_Registry::instance()->REQ->get('uts', 0);
-        // returning to edit ?
-        $this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
-        // add reg url link to registration query params
-        if ($this->checkout->reg_url_link && strpos($this->checkout->reg_url_link, '1-') !== 0) {
-            $this->checkout->reg_cache_where_params[0]['REG_url_link'] = $this->checkout->reg_url_link;
-        }
-        // or some other kind of revisit ?
-        $this->checkout->revisit = filter_var(
-            EE_Registry::instance()->REQ->get('revisit', false),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // and whether or not to generate a reg form for this request
-        $this->checkout->generate_reg_form = filter_var(
-            EE_Registry::instance()->REQ->get('generate_reg_form', true),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // and whether or not to process a reg form submission for this request
-        $this->checkout->process_form_submission = filter_var(
-            EE_Registry::instance()->REQ->get(
-                'process_form_submission',
-                $this->checkout->action === 'process_reg_step'
-            ),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        $this->checkout->process_form_submission = filter_var(
-            $this->checkout->action !== 'display_spco_reg_step'
-                ? $this->checkout->process_form_submission
-                : false,
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // $this->_display_request_vars();
-    }
-
-
-
-    /**
-     *  _display_request_vars
-     *
-     * @access    protected
-     * @return    void
-     */
-    protected function _display_request_vars()
-    {
-        if ( ! WP_DEBUG) {
-            return;
-        }
-        EEH_Debug_Tools::printr($_REQUEST, '$_REQUEST', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->step, '$this->checkout->step', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->edit_step, '$this->checkout->edit_step', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->action, '$this->checkout->action', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->reg_url_link, '$this->checkout->reg_url_link', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->revisit, '$this->checkout->revisit', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->generate_reg_form, '$this->checkout->generate_reg_form', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->process_form_submission, '$this->checkout->process_form_submission', __FILE__, __LINE__);
-    }
-
-
-
-    /**
-     * _block_bots
-     * checks that the incoming request has either of the following set:
-     *  a uts (unix timestamp) which indicates that the request was redirected from the Ticket Selector
-     *  a REG URL Link, which indicates that the request is a return visit to SPCO for a valid TXN
-     * so if you're not coming from the Ticket Selector nor returning for a valid IP...
-     * then where you coming from man?
-     *
-     * @return boolean
-     */
-    private function _block_bots()
-    {
-        $invalid_checkout_access = EED_Invalid_Checkout_Access::getInvalidCheckoutAccess();
-        if ($invalid_checkout_access->checkoutAccessIsInvalid($this->checkout)) {
-            return true;
-        }
-        return false;
-    }
-
-
-
-    /**
-     *    _get_first_step
-     *  gets slug for first step in $_reg_steps_array
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    string
-     */
-    private function _get_first_step()
-    {
-        $first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
-        return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
-    }
-
-
-
-    /**
-     *    _load_and_instantiate_reg_steps
-     *  instantiates each reg step based on the loaded reg_steps array
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    bool
-     */
-    private function _load_and_instantiate_reg_steps()
-    {
-        do_action('AHEE__Single_Page_Checkout___load_and_instantiate_reg_steps__start', $this->checkout);
-        // have reg_steps already been instantiated ?
-        if (
-            empty($this->checkout->reg_steps)
-            || apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
-        ) {
-            // if not, then loop through raw reg steps array
-            foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
-                if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
-                    return false;
-                }
-            }
-            EE_Registry::instance()->CFG->registration->skip_reg_confirmation = true;
-            EE_Registry::instance()->CFG->registration->reg_confirmation_last = true;
-            // skip the registration_confirmation page ?
-            if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
-                // just remove it from the reg steps array
-                $this->checkout->remove_reg_step('registration_confirmation', false);
-            } else if (
-                isset($this->checkout->reg_steps['registration_confirmation'])
-                && EE_Registry::instance()->CFG->registration->reg_confirmation_last
-            ) {
-                // set the order to something big like 100
-                $this->checkout->set_reg_step_order('registration_confirmation', 100);
-            }
-            // filter the array for good luck
-            $this->checkout->reg_steps = apply_filters(
-                'FHEE__Single_Page_Checkout__load_reg_steps__reg_steps',
-                $this->checkout->reg_steps
-            );
-            // finally re-sort based on the reg step class order properties
-            $this->checkout->sort_reg_steps();
-        } else {
-            foreach ($this->checkout->reg_steps as $reg_step) {
-                // set all current step stati to FALSE
-                $reg_step->set_is_current_step(false);
-            }
-        }
-        if (empty($this->checkout->reg_steps)) {
-            EE_Error::add_error(
-                __('No Reg Steps were loaded..', 'event_espresso'),
-                __FILE__, __FUNCTION__, __LINE__
-            );
-            return false;
-        }
-        // make reg step details available to JS
-        $this->checkout->set_reg_step_JSON_info();
-        return true;
-    }
-
-
-
-    /**
-     *     _load_and_instantiate_reg_step
-     *
-     * @access    private
-     * @param array $reg_step
-     * @param int   $order
-     * @return bool
-     */
-    private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0)
-    {
-        // we need a file_path, class_name, and slug to add a reg step
-        if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
-            // if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
-            if (
-                $this->checkout->reg_url_link
-                && $this->checkout->step !== $reg_step['slug']
-                && $reg_step['slug'] !== 'finalize_registration'
-                // normally at this point we would NOT load the reg step, but this filter can change that
-                && apply_filters(
-                    'FHEE__Single_Page_Checkout___load_and_instantiate_reg_step__bypass_reg_step',
-                    true,
-                    $reg_step,
-                    $this->checkout
-                )
-            ) {
-                return true;
-            }
-            // instantiate step class using file path and class name
-            $reg_step_obj = EE_Registry::instance()->load_file(
-                $reg_step['file_path'],
-                $reg_step['class_name'],
-                'class',
-                $this->checkout,
-                false
-            );
-            // did we gets the goods ?
-            if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
-                // set reg step order based on config
-                $reg_step_obj->set_order($order);
-                // add instantiated reg step object to the master reg steps array
-                $this->checkout->add_reg_step($reg_step_obj);
-            } else {
-                EE_Error::add_error(
-                    __('The current step could not be set.', 'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-                return false;
-            }
-        } else {
-            if (WP_DEBUG) {
-                EE_Error::add_error(
-                    sprintf(
-                        __(
-                            'A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s',
-                            'event_espresso'
-                        ),
-                        isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
-                        isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
-                        isset($reg_step['slug']) ? $reg_step['slug'] : '',
-                        '<ul>',
-                        '<li>',
-                        '</li>',
-                        '</ul>'
-                    ),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-            }
-            return false;
-        }
-        return true;
-    }
-
-
-    /**
-     * _verify_transaction_and_get_registrations
-     *
-     * @access private
-     * @return bool
-     * @throws InvalidDataTypeException
-     * @throws InvalidEntityException
-     * @throws EE_Error
-     */
-    private function _verify_transaction_and_get_registrations()
-    {
-        // was there already a valid transaction in the checkout from the session ?
-        if ( ! $this->checkout->transaction instanceof EE_Transaction) {
-            // get transaction from db or session
-            $this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
-                ? $this->_get_transaction_and_cart_for_previous_visit()
-                : $this->_get_cart_for_current_session_and_setup_new_transaction();
-            if ( ! $this->checkout->transaction instanceof EE_Transaction) {
-                EE_Error::add_error(
-                    __('Your Registration and Transaction information could not be retrieved from the db.',
-                        'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-                $this->checkout->transaction = EE_Transaction::new_instance();
-                // add some style and make it dance
-                $this->add_styles_and_scripts();
-                EED_Single_Page_Checkout::$_initialized = true;
-                return false;
-            }
-            // and the registrations for the transaction
-            $this->_get_registrations($this->checkout->transaction);
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _get_transaction_and_cart_for_previous_visit
-     *
-     * @access private
-     * @return mixed EE_Transaction|NULL
-     */
-    private function _get_transaction_and_cart_for_previous_visit()
-    {
-        /** @var $TXN_model EEM_Transaction */
-        $TXN_model = EE_Registry::instance()->load_model('Transaction');
-        // because the reg_url_link is present in the request,
-        // this is a return visit to SPCO, so we'll get the transaction data from the db
-        $transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
-        // verify transaction
-        if ($transaction instanceof EE_Transaction) {
-            // and get the cart that was used for that transaction
-            $this->checkout->cart = $this->_get_cart_for_transaction($transaction);
-            return $transaction;
-        }
-        EE_Error::add_error(
-            __('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'),
-            __FILE__, __FUNCTION__, __LINE__
-        );
-        return null;
-
-    }
-
-
-
-    /**
-     * _get_cart_for_transaction
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    private function _get_cart_for_transaction($transaction)
-    {
-        return $this->checkout->get_cart_for_transaction($transaction);
-    }
-
-
-
-    /**
-     * get_cart_for_transaction
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    public function get_cart_for_transaction(EE_Transaction $transaction)
-    {
-        return $this->checkout->get_cart_for_transaction($transaction);
-    }
-
-
-
-    /**
-     * _get_transaction_and_cart_for_current_session
-     *    generates a new EE_Transaction object and adds it to the $_transaction property.
-     *
-     * @access private
-     * @return EE_Transaction
-     * @throws EE_Error
-     */
-    private function _get_cart_for_current_session_and_setup_new_transaction()
-    {
-        //  if there's no transaction, then this is the FIRST visit to SPCO
-        // so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
-        $this->checkout->cart = $this->_get_cart_for_transaction(null);
-        // and then create a new transaction
-        $transaction = $this->_initialize_transaction();
-        // verify transaction
-        if ($transaction instanceof EE_Transaction) {
-            // save it so that we have an ID for other objects to use
-            $transaction->save();
-            // and save TXN data to the cart
-            $this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
-        } else {
-            EE_Error::add_error(
-                __('A Valid Transaction could not be initialized.', 'event_espresso'),
-                __FILE__, __FUNCTION__, __LINE__
-            );
-        }
-        return $transaction;
-    }
-
-
-
-    /**
-     *    generates a new EE_Transaction object and adds it to the $_transaction property.
-     *
-     * @access private
-     * @return mixed EE_Transaction|NULL
-     */
-    private function _initialize_transaction()
-    {
-        try {
-            // ensure cart totals have been calculated
-            $this->checkout->cart->get_grand_total()->recalculate_total_including_taxes();
-            // grab the cart grand total
-            $cart_total = $this->checkout->cart->get_cart_grand_total();
-            // create new TXN
-            $transaction = EE_Transaction::new_instance(
-                array(
-                    'TXN_reg_steps' => $this->checkout->initialize_txn_reg_steps_array(),
-                    'TXN_total'     => $cart_total > 0 ? $cart_total : 0,
-                    'TXN_paid'      => 0,
-                    'STS_ID'        => EEM_Transaction::failed_status_code,
-                )
-            );
-            // save it so that we have an ID for other objects to use
-            $transaction->save();
-            // set cron job for following up on TXNs after their session has expired
-            EE_Cron_Tasks::schedule_expired_transaction_check(
-                EE_Registry::instance()->SSN->expiration() + 1,
-                $transaction->ID()
-            );
-            return $transaction;
-        } catch (Exception $e) {
-            EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
-        }
-        return null;
-    }
-
-
-    /**
-     * _get_registrations
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws InvalidDataTypeException
-     * @throws InvalidEntityException
-     * @throws EE_Error
-     */
-    private function _get_registrations(EE_Transaction $transaction)
-    {
-        // first step: grab the registrants  { : o
-        $registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
-        $this->checkout->total_ticket_count = count($registrations);
-        // verify registrations have been set
-        if (empty($registrations)) {
-            // if no cached registrations, then check the db
-            $registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
-            // still nothing ? well as long as this isn't a revisit
-            if (empty($registrations) && ! $this->checkout->revisit) {
-                // generate new registrations from scratch
-                $registrations = $this->_initialize_registrations($transaction);
-            }
-        }
-        // sort by their original registration order
-        usort($registrations, array('EED_Single_Page_Checkout', 'sort_registrations_by_REG_count'));
-        // then loop thru the array
-        foreach ($registrations as $registration) {
-            // verify each registration
-            if ($registration instanceof EE_Registration) {
-                // we display all attendee info for the primary registrant
-                if ($this->checkout->reg_url_link === $registration->reg_url_link()
-                    && $registration->is_primary_registrant()
-                ) {
-                    $this->checkout->primary_revisit = true;
-                    break;
-                }
-                if ($this->checkout->revisit && $this->checkout->reg_url_link !== $registration->reg_url_link()) {
-                    // but hide info if it doesn't belong to you
-                    $transaction->clear_cache('Registration', $registration->ID());
-                    $this->checkout->total_ticket_count--;
-                }
-                $this->checkout->set_reg_status_updated($registration->ID(), false);
-            }
-        }
-    }
-
-
-    /**
-     *    adds related EE_Registration objects for each ticket in the cart to the current EE_Transaction object
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return    array
-     * @throws InvalidDataTypeException
-     * @throws InvalidEntityException
-     * @throws EE_Error
-     */
-    private function _initialize_registrations(EE_Transaction $transaction)
-    {
-        $att_nmbr = 0;
-        $registrations = array();
-        if ($transaction instanceof EE_Transaction) {
-            /** @type EE_Registration_Processor $registration_processor */
-            $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-            $this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
-            // now let's add the cart items to the $transaction
-            foreach ($this->checkout->cart->get_tickets() as $line_item) {
-                //do the following for each ticket of this type they selected
-                for ($x = 1; $x <= $line_item->quantity(); $x++) {
-                    $att_nmbr++;
-                    /** @var EventEspresso\core\services\commands\registration\CreateRegistrationCommand $CreateRegistrationCommand */
-                    $CreateRegistrationCommand = EE_Registry::instance()->create(
-                        'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
-                        array(
-                            $transaction,
-                            $line_item,
-                            $att_nmbr,
-                            $this->checkout->total_ticket_count,
-                        )
-                    );
-                    // override capabilities for frontend registrations
-                    if ( ! is_admin()) {
-                        $CreateRegistrationCommand->setCapCheck(
-                            new PublicCapabilities('', 'create_new_registration')
-                        );
-                    }
-                    $registration = EE_Registry::instance()->BUS->execute($CreateRegistrationCommand);
-                    if ( ! $registration instanceof EE_Registration) {
-                        throw new InvalidEntityException($registration, 'EE_Registration');
-                    }
-                    $registrations[ $registration->ID() ] = $registration;
-                }
-            }
-            $registration_processor->fix_reg_final_price_rounding_issue($transaction);
-        }
-        return $registrations;
-    }
-
-
-
-    /**
-     * sorts registrations by REG_count
-     *
-     * @access public
-     * @param EE_Registration $reg_A
-     * @param EE_Registration $reg_B
-     * @return int
-     */
-    public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B)
-    {
-        // this shouldn't ever happen within the same TXN, but oh well
-        if ($reg_A->count() === $reg_B->count()) {
-            return 0;
-        }
-        return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
-    }
-
-
-
-    /**
-     *    _final_verifications
-     * just makes sure that everything is set up correctly before proceeding
-     *
-     * @access    private
-     * @return    bool
-     * @throws EE_Error
-     */
-    private function _final_verifications()
-    {
-        // filter checkout
-        $this->checkout = apply_filters(
-            'FHEE__EED_Single_Page_Checkout___final_verifications__checkout',
-            $this->checkout
-        );
-        //verify that current step is still set correctly
-        if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
-            EE_Error::add_error(
-                __('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // if returning to SPCO, then verify that primary registrant is set
-        if ( ! empty($this->checkout->reg_url_link)) {
-            $valid_registrant = $this->checkout->transaction->primary_registration();
-            if ( ! $valid_registrant instanceof EE_Registration) {
-                EE_Error::add_error(
-                    __('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-            $valid_registrant = null;
-            foreach (
-                $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration
-            ) {
-                if (
-                    $registration instanceof EE_Registration
-                    && $registration->reg_url_link() === $this->checkout->reg_url_link
-                ) {
-                    $valid_registrant = $registration;
-                }
-            }
-            if ( ! $valid_registrant instanceof EE_Registration) {
-                // hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
-                if (EED_Single_Page_Checkout::$_checkout_verified) {
-                    // clear the session, mark the checkout as unverified, and try again
-                    EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-                    EED_Single_Page_Checkout::$_initialized = false;
-                    EED_Single_Page_Checkout::$_checkout_verified = false;
-                    $this->_initialize();
-                    EE_Error::reset_notices();
-                    return false;
-                }
-                EE_Error::add_error(
-                    __(
-                        'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-        }
-        // now that things have been kinda sufficiently verified,
-        // let's add the checkout to the session so that it's available to other systems
-        EE_Registry::instance()->SSN->set_checkout($this->checkout);
-        return true;
-    }
-
-
-
-    /**
-     *    _initialize_reg_steps
-     * first makes sure that EE_Transaction_Processor::set_reg_step_initiated() is called as required
-     * then loops thru all of the active reg steps and calls the initialize_reg_step() method
-     *
-     * @access    private
-     * @param bool $reinitializing
-     * @throws EE_Error
-     */
-    private function _initialize_reg_steps($reinitializing = false)
-    {
-        $this->checkout->set_reg_step_initiated($this->checkout->current_step);
-        // loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
-        foreach ($this->checkout->reg_steps as $reg_step) {
-            if ( ! $reg_step->initialize_reg_step()) {
-                // if not initialized then maybe this step is being removed...
-                if ( ! $reinitializing && $reg_step->is_current_step()) {
-                    // if it was the current step, then we need to start over here
-                    $this->_initialize_reg_steps(true);
-                    return;
-                }
-                continue;
-            }
-            // add css and JS for current step
-            $reg_step->enqueue_styles_and_scripts();
-            // i18n
-            $reg_step->translate_js_strings();
-            if ($reg_step->is_current_step()) {
-                // the text that appears on the reg step form submit button
-                $reg_step->set_submit_button_text();
-            }
-        }
-        // dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
-        do_action(
-            "AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}",
-            $this->checkout->current_step
-        );
-    }
-
-
-
-    /**
-     * _check_form_submission
-     *
-     * @access private
-     * @return boolean
-     */
-    private function _check_form_submission()
-    {
-        //does this request require the reg form to be generated ?
-        if ($this->checkout->generate_reg_form) {
-            // ever heard that song by Blue Rodeo ?
-            try {
-                $this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
-                // if not displaying a form, then check for form submission
-                if (
-                    $this->checkout->process_form_submission
-                    && $this->checkout->current_step->reg_form->was_submitted()
-                ) {
-                    // clear out any old data in case this step is being run again
-                    $this->checkout->current_step->set_valid_data(array());
-                    // capture submitted form data
-                    $this->checkout->current_step->reg_form->receive_form_submission(
-                        apply_filters(
-                            'FHEE__Single_Page_Checkout___check_form_submission__request_params',
-                            EE_Registry::instance()->REQ->params(),
-                            $this->checkout
-                        )
-                    );
-                    // validate submitted form data
-                    if ( ! $this->checkout->continue_reg || ! $this->checkout->current_step->reg_form->is_valid()) {
-                        // thou shall not pass !!!
-                        $this->checkout->continue_reg = false;
-                        // any form validation errors?
-                        if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
-                            $submission_error_messages = array();
-                            // bad, bad, bad registrant
-                            foreach (
-                                $this->checkout->current_step->reg_form->get_validation_errors_accumulated()
-                                as $validation_error
-                            ) {
-                                if ($validation_error instanceof EE_Validation_Error) {
-                                    $submission_error_messages[] = sprintf(
-                                        __('%s : %s', 'event_espresso'),
-                                        $validation_error->get_form_section()->html_label_text(),
-                                        $validation_error->getMessage()
-                                    );
-                                }
-                            }
-                            EE_Error::add_error(
-                                implode('<br />', $submission_error_messages),
-                                __FILE__, __FUNCTION__, __LINE__
-                            );
-                        }
-                        // well not really... what will happen is
-                        // we'll just get redirected back to redo the current step
-                        $this->go_to_next_step();
-                        return false;
-                    }
-                }
-            } catch (EE_Error $e) {
-                $e->get_error();
-            }
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _process_action
-     *
-     * @access private
-     * @return void
-     * @throws EE_Error
-     */
-    private function _process_form_action()
-    {
-        // what cha wanna do?
-        switch ($this->checkout->action) {
-            // AJAX next step reg form
-            case 'display_spco_reg_step' :
-                $this->checkout->redirect = false;
-                if (EE_Registry::instance()->REQ->ajax) {
-                    $this->checkout->json_response->set_reg_step_html(
-                        $this->checkout->current_step->display_reg_form()
-                    );
-                }
-                break;
-            default :
-                // meh... do one of those other steps first
-                if (
-                    ! empty($this->checkout->action)
-                    && is_callable(array($this->checkout->current_step, $this->checkout->action))
-                ) {
-                    // dynamically creates hook point like:
-                    //   AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
-                    do_action(
-                        "AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
-                        $this->checkout->current_step
-                    );
-                    // call action on current step
-                    if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
-                        // good registrant, you get to proceed
-                        if (
-                            $this->checkout->current_step->success_message() !== ''
-                            && apply_filters(
-                                'FHEE__Single_Page_Checkout___process_form_action__display_success',
-                                false
-                            )
-                        ) {
-                            EE_Error::add_success(
-                                $this->checkout->current_step->success_message()
-                                . '<br />' . $this->checkout->next_step->_instructions()
-                            );
-                        }
-                        // pack it up, pack it in...
-                        $this->_setup_redirect();
-                    }
-                    // dynamically creates hook point like:
-                    //  AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
-                    do_action(
-                        "AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
-                        $this->checkout->current_step
-                    );
-                } else {
-                    EE_Error::add_error(
-                        sprintf(
-                            __(
-                                'The requested form action "%s" does not exist for the current "%s" registration step.',
-                                'event_espresso'
-                            ),
-                            $this->checkout->action,
-                            $this->checkout->current_step->name()
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            // end default
-        }
-        // store our progress so far
-        $this->checkout->stash_transaction_and_checkout();
-        // advance to the next step! If you pass GO, collect $200
-        $this->go_to_next_step();
-    }
-
-
-
-    /**
-     *        add_styles_and_scripts
-     *
-     * @access        public
-     * @return        void
-     */
-    public function add_styles_and_scripts()
-    {
-        // i18n
-        $this->translate_js_strings();
-        if ($this->checkout->admin_request) {
-            add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
-        } else {
-            add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
-        }
-    }
-
-
-
-    /**
-     *        translate_js_strings
-     *
-     * @access        public
-     * @return        void
-     */
-    public function translate_js_strings()
-    {
-        EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
-        EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
-        EE_Registry::$i18n_js_strings['server_error'] = __(
-            'An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_json_response'] = __(
-            'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['validation_error'] = __(
-            'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_payment_method'] = __(
-            'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['reg_step_error'] = __(
-            'This registration step could not be completed. Please refresh the page and try again.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_coupon'] = __(
-            'We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
-            __(
-                'Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.',
-                'event_espresso'
-            ),
-            '<br/>',
-            '<br/>'
-        );
-        EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
-        EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
-        EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
-        EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
-        EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
-            __(
-                '%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please accept our apologies for any inconvenience this may have caused.%8$s',
-                'event_espresso'
-            ),
-            '<h4 class="important-notice">',
-            '</h4>',
-            '<br />',
-            '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
-            '">',
-            '</a>',
-            '</p>'
-        );
-        EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters(
-            'FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit',
-            true
-        );
-        EE_Registry::$i18n_js_strings['session_extension'] = absint(
-            apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS)
-        );
-        EE_Registry::$i18n_js_strings['session_expiration'] = gmdate(
-            'M d, Y H:i:s',
-            EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)
-        );
-    }
-
-
-
-    /**
-     *    enqueue_styles_and_scripts
-     *
-     * @access        public
-     * @return        void
-     * @throws EE_Error
-     */
-    public function enqueue_styles_and_scripts()
-    {
-        // load css
-        wp_register_style(
-            'single_page_checkout',
-            SPCO_CSS_URL . 'single_page_checkout.css',
-            array('espresso_default'),
-            EVENT_ESPRESSO_VERSION
-        );
-        wp_enqueue_style('single_page_checkout');
-        // load JS
-        wp_register_script(
-            'jquery_plugin',
-            EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js',
-            array('jquery'),
-            '1.0.1',
-            true
-        );
-        wp_register_script(
-            'jquery_countdown',
-            EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js',
-            array('jquery_plugin'),
-            '2.0.2',
-            true
-        );
-        wp_register_script(
-            'single_page_checkout',
-            SPCO_JS_URL . 'single_page_checkout.js',
-            array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        if ($this->checkout->registration_form instanceof EE_Form_Section_Proper) {
-            $this->checkout->registration_form->enqueue_js();
-        }
-        if ($this->checkout->current_step->reg_form instanceof EE_Form_Section_Proper) {
-            $this->checkout->current_step->reg_form->enqueue_js();
-        }
-        wp_enqueue_script('single_page_checkout');
-        /**
-         * global action hook for enqueueing styles and scripts with
-         * spco calls.
-         */
-        do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
-        /**
-         * dynamic action hook for enqueueing styles and scripts with spco calls.
-         * The hook will end up being something like:
-         *      AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
-         */
-        do_action(
-            'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(),
-            $this
-        );
-    }
-
-
-
-    /**
-     *    display the Registration Single Page Checkout Form
-     *
-     * @access    private
-     * @return    void
-     * @throws EE_Error
-     */
-    private function _display_spco_reg_form()
-    {
-        // if registering via the admin, just display the reg form for the current step
-        if ($this->checkout->admin_request) {
-            EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
-        } else {
-            // add powered by EE msg
-            add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
-            $empty_cart = count(
-                $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)
-            ) < 1;
-            EE_Registry::$i18n_js_strings['empty_cart'] = $empty_cart;
-            $cookies_not_set_msg = '';
-            if ($empty_cart) {
-                $cookies_not_set_msg = apply_filters(
-                    'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
-                    sprintf(
-                        __(
-                            '%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s',
-                            'event_espresso'
-                        ),
-                        '<div class="ee-attention hidden" id="ee-cookies-not-set-msg">',
-                        '</div>',
-                        '<h6 class="important-notice">',
-                        '</h6>',
-                        '<p>',
-                        '</p>',
-                        '<br />',
-                        '<a href="http://www.whatarecookies.com/enable.asp" target="_blank">',
-                        '</a>'
-                    )
-                );
-            }
-            $this->checkout->registration_form = new EE_Form_Section_Proper(
-                array(
-                    'name'            => 'single-page-checkout',
-                    'html_id'         => 'ee-single-page-checkout-dv',
-                    'layout_strategy' =>
-                        new EE_Template_Layout(
-                            array(
-                                'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
-                                'template_args'        => array(
-                                    'empty_cart'              => $empty_cart,
-                                    'revisit'                 => $this->checkout->revisit,
-                                    'reg_steps'               => $this->checkout->reg_steps,
-                                    'next_step'               => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
-                                        ? $this->checkout->next_step->slug()
-                                        : '',
-                                    'cancel_page_url'         => $this->checkout->cancel_page_url,
-                                    'empty_msg'               => apply_filters(
-                                        'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
-                                        sprintf(
-                                            __(
-                                                'You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
-                                                'event_espresso'
-                                            ),
-                                            '<a href="'
-                                            . get_post_type_archive_link('espresso_events')
-                                            . '" title="',
-                                            '">',
-                                            '</a>'
-                                        )
-                                    ),
-                                    'cookies_not_set_msg'     => $cookies_not_set_msg,
-                                    'registration_time_limit' => $this->checkout->get_registration_time_limit(),
-                                    'session_expiration'      => gmdate(
-                                        'M d, Y H:i:s',
-                                        EE_Registry::instance()->SSN->expiration()
-                                        + (get_option('gmt_offset') * HOUR_IN_SECONDS)
-                                    ),
-                                ),
-                            )
-                        ),
-                )
-            );
-            // load template and add to output sent that gets filtered into the_content()
-            EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html());
-        }
-    }
-
-
-
-    /**
-     *    add_extra_finalize_registration_inputs
-     *
-     * @access    public
-     * @param $next_step
-     * @internal  param string $label
-     * @return void
-     */
-    public function add_extra_finalize_registration_inputs($next_step)
-    {
-        if ($next_step === 'finalize_registration') {
-            echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
-        }
-    }
-
-
-
-    /**
-     *    display_registration_footer
-     *
-     * @access    public
-     * @return    string
-     */
-    public static function display_registration_footer()
-    {
-        if (
-        apply_filters(
-            'FHEE__EE_Front__Controller__show_reg_footer',
-            EE_Registry::instance()->CFG->admin->show_reg_footer
-        )
-        ) {
-            add_filter(
-                'FHEE__EEH_Template__powered_by_event_espresso__url',
-                function ($url) {
-                    return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
-                }
-            );
-            echo apply_filters(
-                'FHEE__EE_Front_Controller__display_registration_footer',
-                \EEH_Template::powered_by_event_espresso(
-                    '',
-                    'espresso-registration-footer-dv',
-                    array('utm_content' => 'registration_checkout')
-                )
-            );
-        }
-        return '';
-    }
-
-
-
-    /**
-     *    unlock_transaction
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public function unlock_transaction()
-    {
-        if ($this->checkout->transaction instanceof EE_Transaction) {
-            $this->checkout->transaction->unlock();
-        }
-    }
-
-
-
-    /**
-     *        _setup_redirect
-     *
-     * @access    private
-     * @return void
-     */
-    private function _setup_redirect()
-    {
-        if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
-            $this->checkout->redirect = true;
-            if (empty($this->checkout->redirect_url)) {
-                $this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
-            }
-            $this->checkout->redirect_url = apply_filters(
-                'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url',
-                $this->checkout->redirect_url,
-                $this->checkout
-            );
-        }
-    }
-
-
-
-    /**
-     *   handle ajax message responses and redirects
-     *
-     * @access public
-     * @return void
-     * @throws EE_Error
-     */
-    public function go_to_next_step()
-    {
-        if (EE_Registry::instance()->REQ->ajax) {
-            // capture contents of output buffer we started earlier in the request, and insert into JSON response
-            $this->checkout->json_response->set_unexpected_errors(ob_get_clean());
-        }
-        $this->unlock_transaction();
-        // just return for these conditions
-        if (
-            $this->checkout->admin_request
-            || $this->checkout->action === 'redirect_form'
-            || $this->checkout->action === 'update_checkout'
-        ) {
-            return;
-        }
-        // AJAX response
-        $this->_handle_json_response();
-        // redirect to next step or the Thank You page
-        $this->_handle_html_redirects();
-        // hmmm... must be something wrong, so let's just display the form again !
-        $this->_display_spco_reg_form();
-    }
-
-
-
-    /**
-     *   _handle_json_response
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _handle_json_response()
-    {
-        // if this is an ajax request
-        if (EE_Registry::instance()->REQ->ajax) {
-            // DEBUG LOG
-            //$this->checkout->log(
-            //	__CLASS__, __FUNCTION__, __LINE__,
-            //	array(
-            //		'json_response_redirect_url' => $this->checkout->json_response->redirect_url(),
-            //		'redirect'                   => $this->checkout->redirect,
-            //		'continue_reg'               => $this->checkout->continue_reg,
-            //	)
-            //);
-            $this->checkout->json_response->set_registration_time_limit(
-                $this->checkout->get_registration_time_limit()
-            );
-            $this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
-            // just send the ajax (
-            $json_response = apply_filters(
-                'FHEE__EE_Single_Page_Checkout__JSON_response',
-                $this->checkout->json_response
-            );
-            echo $json_response;
-            exit();
-        }
-    }
-
-
-
-    /**
-     *   _handle_redirects
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _handle_html_redirects()
-    {
-        // going somewhere ?
-        if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
-            // store notices in a transient
-            EE_Error::get_notices(false, true, true);
-            // DEBUG LOG
-            //$this->checkout->log(
-            //	__CLASS__, __FUNCTION__, __LINE__,
-            //	array(
-            //		'headers_sent' => headers_sent(),
-            //		'redirect_url'     => $this->checkout->redirect_url,
-            //		'headers_list'    => headers_list(),
-            //	)
-            //);
-            wp_safe_redirect($this->checkout->redirect_url);
-            exit();
-        }
-    }
-
-
-
-    /**
-     *   set_checkout_anchor
-     *
-     * @access public
-     * @return void
-     */
-    public function set_checkout_anchor()
-    {
-        echo '<a id="checkout" style="float: left; margin-left: -999em;"></a>';
-    }
+	/**
+	 * $_initialized - has the SPCO controller already been initialized ?
+	 *
+	 * @access private
+	 * @var bool $_initialized
+	 */
+	private static $_initialized = false;
+
+
+	/**
+	 * $_checkout_verified - is the EE_Checkout verified as correct for this request ?
+	 *
+	 * @access private
+	 * @var bool $_valid_checkout
+	 */
+	private static $_checkout_verified = true;
+
+	/**
+	 *    $_reg_steps_array - holds initial array of reg steps
+	 *
+	 * @access private
+	 * @var array $_reg_steps_array
+	 */
+	private static $_reg_steps_array = array();
+
+	/**
+	 *    $checkout - EE_Checkout object for handling the properties of the current checkout process
+	 *
+	 * @access public
+	 * @var EE_Checkout $checkout
+	 */
+	public $checkout;
+
+
+
+	/**
+	 * @return EED_Module|EED_Single_Page_Checkout
+	 */
+	public static function instance()
+	{
+		add_filter('EED_Single_Page_Checkout__SPCO_active', '__return_true');
+		return parent::get_instance(__CLASS__);
+	}
+
+
+
+	/**
+	 * @return EE_CART
+	 */
+	public function cart()
+	{
+		return $this->checkout->cart;
+	}
+
+
+
+	/**
+	 * @return EE_Transaction
+	 */
+	public function transaction()
+	{
+		return $this->checkout->transaction;
+	}
+
+
+
+	/**
+	 *    set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function set_hooks()
+	{
+		EED_Single_Page_Checkout::set_definitions();
+	}
+
+
+
+	/**
+	 *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function set_hooks_admin()
+	{
+		EED_Single_Page_Checkout::set_definitions();
+		if ( ! (defined('DOING_AJAX') && DOING_AJAX)) {
+			return;
+		}
+		// going to start an output buffer in case anything gets accidentally output
+		// that might disrupt our JSON response
+		ob_start();
+		EED_Single_Page_Checkout::load_request_handler();
+		EED_Single_Page_Checkout::load_reg_steps();
+		// set ajax hooks
+		add_action('wp_ajax_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
+		add_action('wp_ajax_nopriv_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
+		add_action('wp_ajax_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
+		add_action('wp_ajax_nopriv_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
+		add_action('wp_ajax_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
+		add_action('wp_ajax_nopriv_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
+	}
+
+
+
+	/**
+	 *    process ajax request
+	 *
+	 * @param string $ajax_action
+	 * @throws EE_Error
+	 */
+	public static function process_ajax_request($ajax_action)
+	{
+		EE_Registry::instance()->REQ->set('action', $ajax_action);
+		EED_Single_Page_Checkout::instance()->_initialize();
+	}
+
+
+
+	/**
+	 *    ajax display registration step
+	 *
+	 * @throws EE_Error
+	 */
+	public static function display_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('display_spco_reg_step');
+	}
+
+
+
+	/**
+	 *    ajax process registration step
+	 *
+	 * @throws EE_Error
+	 */
+	public static function process_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('process_reg_step');
+	}
+
+
+
+	/**
+	 *    ajax process registration step
+	 *
+	 * @throws EE_Error
+	 */
+	public static function update_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('update_reg_step');
+	}
+
+
+
+	/**
+	 *   update_checkout
+	 *
+	 * @access public
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public static function update_checkout()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('update_checkout');
+	}
+
+
+
+	/**
+	 *    load_request_handler
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function load_request_handler()
+	{
+		// load core Request_Handler class
+		if (EE_Registry::instance()->REQ !== null) {
+			EE_Registry::instance()->load_core('Request_Handler');
+		}
+	}
+
+
+
+	/**
+	 *    set_definitions
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function set_definitions()
+	{
+		if(defined('SPCO_BASE_PATH')) {
+			return;
+		}
+		define(
+			'SPCO_BASE_PATH',
+			rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS
+		);
+		define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
+		define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
+		define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
+		define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
+		define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
+		define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
+		EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
+			__('%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please accept our apologies for any inconvenience this may have caused.%8$s',
+				'event_espresso'),
+			'<h4 class="important-notice">',
+			'</h4>',
+			'<br />',
+			'<p>',
+			'<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+			'">',
+			'</a>',
+			'</p>'
+		);
+	}
+
+
+
+	/**
+	 * load_reg_steps
+	 * loads and instantiates each reg step based on the EE_Registry::instance()->CFG->registration->reg_steps array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 */
+	public static function load_reg_steps()
+	{
+		static $reg_steps_loaded = false;
+		if ($reg_steps_loaded) {
+			return;
+		}
+		// filter list of reg_steps
+		$reg_steps_to_load = (array)apply_filters(
+			'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
+			EED_Single_Page_Checkout::get_reg_steps()
+		);
+		// sort by key (order)
+		ksort($reg_steps_to_load);
+		// loop through folders
+		foreach ($reg_steps_to_load as $order => $reg_step) {
+			// we need a
+			if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
+				// copy over to the reg_steps_array
+				EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
+				// register custom key route for each reg step
+				// ie: step=>"slug" - this is the entire reason we load the reg steps array now
+				EE_Config::register_route(
+					$reg_step['slug'],
+					'EED_Single_Page_Checkout',
+					'run',
+					'step'
+				);
+				// add AJAX or other hooks
+				if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
+					// setup autoloaders if necessary
+					if ( ! class_exists($reg_step['class_name'])) {
+						EEH_Autoloader::register_autoloaders_for_each_file_in_folder(
+							$reg_step['file_path'],
+							true
+						);
+					}
+					if (is_callable($reg_step['class_name'], 'set_hooks')) {
+						call_user_func(array($reg_step['class_name'], 'set_hooks'));
+					}
+				}
+			}
+		}
+		$reg_steps_loaded = true;
+	}
+
+
+
+	/**
+	 *    get_reg_steps
+	 *
+	 * @access    public
+	 * @return    array
+	 */
+	public static function get_reg_steps()
+	{
+		$reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
+		if (empty($reg_steps)) {
+			$reg_steps = array(
+				10  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
+					'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
+					'slug'       => 'attendee_information',
+					'has_hooks'  => false,
+				),
+				20  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
+					'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
+					'slug'       => 'registration_confirmation',
+					'has_hooks'  => false,
+				),
+				30  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
+					'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
+					'slug'       => 'payment_options',
+					'has_hooks'  => true,
+				),
+				999 => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
+					'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
+					'slug'       => 'finalize_registration',
+					'has_hooks'  => false,
+				),
+			);
+		}
+		return $reg_steps;
+	}
+
+
+
+	/**
+	 *    registration_checkout_for_admin
+	 *
+	 * @access    public
+	 * @return    string
+	 * @throws EE_Error
+	 */
+	public static function registration_checkout_for_admin()
+	{
+		EED_Single_Page_Checkout::load_request_handler();
+		EE_Registry::instance()->REQ->set('step', 'attendee_information');
+		EE_Registry::instance()->REQ->set('action', 'display_spco_reg_step');
+		EE_Registry::instance()->REQ->set('process_form_submission', false);
+		EED_Single_Page_Checkout::instance()->_initialize();
+		EED_Single_Page_Checkout::instance()->_display_spco_reg_form();
+		return EE_Registry::instance()->REQ->get_output();
+	}
+
+
+
+	/**
+	 * process_registration_from_admin
+	 *
+	 * @access public
+	 * @return \EE_Transaction
+	 * @throws EE_Error
+	 */
+	public static function process_registration_from_admin()
+	{
+		EED_Single_Page_Checkout::load_request_handler();
+		EE_Registry::instance()->REQ->set('step', 'attendee_information');
+		EE_Registry::instance()->REQ->set('action', 'process_reg_step');
+		EE_Registry::instance()->REQ->set('process_form_submission', true);
+		EED_Single_Page_Checkout::instance()->_initialize();
+		if (EED_Single_Page_Checkout::instance()->checkout->current_step->completed()) {
+			$final_reg_step = end(EED_Single_Page_Checkout::instance()->checkout->reg_steps);
+			if ($final_reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
+				EED_Single_Page_Checkout::instance()->checkout->set_reg_step_initiated($final_reg_step);
+				if ($final_reg_step->process_reg_step()) {
+					$final_reg_step->set_completed();
+					EED_Single_Page_Checkout::instance()->checkout->update_txn_reg_steps_array();
+					return EED_Single_Page_Checkout::instance()->checkout->transaction;
+				}
+			}
+		}
+		return null;
+	}
+
+
+
+	/**
+	 *    run
+	 *
+	 * @access    public
+	 * @param WP_Query $WP_Query
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function run($WP_Query)
+	{
+		if (
+			$WP_Query instanceof WP_Query
+			&& $WP_Query->is_main_query()
+			&& apply_filters('FHEE__EED_Single_Page_Checkout__run', true)
+			&& $this->_is_reg_checkout()
+		) {
+			$this->_initialize();
+		}
+	}
+
+
+
+	/**
+	 * determines whether current url matches reg page url
+	 *
+	 * @return bool
+	 */
+	protected function _is_reg_checkout()
+	{
+		// get current permalink for reg page without any extra query args
+		$reg_page_url = \get_permalink(EE_Config::instance()->core->reg_page_id);
+		// get request URI for current request, but without the scheme or host
+		$current_request_uri = \EEH_URL::filter_input_server_url('REQUEST_URI');
+		$current_request_uri = html_entity_decode($current_request_uri);
+		// get array of query args from the current request URI
+		$query_args = \EEH_URL::get_query_string($current_request_uri);
+		// grab page id if it is set
+		$page_id = isset($query_args['page_id']) ? absint($query_args['page_id']) : 0;
+		// and remove the page id from the query args (we will re-add it later)
+		unset($query_args['page_id']);
+		// now strip all query args from current request URI
+		$current_request_uri = remove_query_arg(array_keys($query_args), $current_request_uri);
+		// and re-add the page id if it was set
+		if ($page_id) {
+			$current_request_uri = add_query_arg('page_id', $page_id, $current_request_uri);
+		}
+		// remove slashes and ?
+		$current_request_uri = trim($current_request_uri, '?/');
+		// is current request URI part of the known full reg page URL ?
+		return ! empty($current_request_uri) && strpos($reg_page_url, $current_request_uri) !== false;
+	}
+
+
+
+	/**
+	 * @param WP_Query $wp_query
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function init($wp_query)
+	{
+		EED_Single_Page_Checkout::instance()->run($wp_query);
+	}
+
+
+
+	/**
+	 *    _initialize - initial module setup
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    void
+	 */
+	private function _initialize()
+	{
+		// ensure SPCO doesn't run twice
+		if (EED_Single_Page_Checkout::$_initialized) {
+			return;
+		}
+		try {
+			EED_Single_Page_Checkout::load_reg_steps();
+			$this->_verify_session();
+			// setup the EE_Checkout object
+			$this->checkout = $this->_initialize_checkout();
+			// filter checkout
+			$this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
+			// get the $_GET
+			$this->_get_request_vars();
+			if ($this->_block_bots()) {
+				return;
+			}
+			// filter continue_reg
+			$this->checkout->continue_reg = apply_filters(
+				'FHEE__EED_Single_Page_Checkout__init___continue_reg',
+				true,
+				$this->checkout
+			);
+			// load the reg steps array
+			if ( ! $this->_load_and_instantiate_reg_steps()) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// set the current step
+			$this->checkout->set_current_step($this->checkout->step);
+			// and the next step
+			$this->checkout->set_next_step();
+			// verify that everything has been setup correctly
+			if ( ! ($this->_verify_transaction_and_get_registrations() && $this->_final_verifications())) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// lock the transaction
+			$this->checkout->transaction->lock();
+			// make sure all of our cached objects are added to their respective model entity mappers
+			$this->checkout->refresh_all_entities();
+			// set amount owing
+			$this->checkout->amount_owing = $this->checkout->transaction->remaining();
+			// initialize each reg step, which gives them the chance to potentially alter the process
+			$this->_initialize_reg_steps();
+			// DEBUG LOG
+			//$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
+			// get reg form
+			if( ! $this->_check_form_submission()) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// checkout the action!!!
+			$this->_process_form_action();
+			// add some style and make it dance
+			$this->add_styles_and_scripts();
+			// kk... SPCO has successfully run
+			EED_Single_Page_Checkout::$_initialized = true;
+			// set no cache headers and constants
+			EE_System::do_not_cache();
+			// add anchor
+			add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
+			// remove transaction lock
+			add_action('shutdown', array($this, 'unlock_transaction'), 1);
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		}
+	}
+
+
+
+	/**
+	 *    _verify_session
+	 * checks that the session is valid and not expired
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 */
+	private function _verify_session()
+	{
+		if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
+			throw new EE_Error(__('The EE_Session class could not be loaded.', 'event_espresso'));
+		}
+		$clear_session_requested = filter_var(
+			EE_Registry::instance()->REQ->get('clear_session', false),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// is session still valid ?
+		if ($clear_session_requested
+			|| ( EE_Registry::instance()->SSN->expired()
+			  && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === ''
+			)
+		) {
+			$this->checkout = new EE_Checkout();
+			EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+			// EE_Registry::instance()->SSN->reset_cart();
+			// EE_Registry::instance()->SSN->reset_checkout();
+			// EE_Registry::instance()->SSN->reset_transaction();
+			if (! $clear_session_requested) {
+				EE_Error::add_attention(
+					EE_Registry::$i18n_js_strings['registration_expiration_notice'],
+					__FILE__, __FUNCTION__, __LINE__
+				);
+			}
+			// EE_Registry::instance()->SSN->reset_expired();
+		}
+	}
+
+
+
+	/**
+	 *    _initialize_checkout
+	 * loads and instantiates EE_Checkout
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return EE_Checkout
+	 */
+	private function _initialize_checkout()
+	{
+		// look in session for existing checkout
+		/** @type EE_Checkout $checkout */
+		$checkout = EE_Registry::instance()->SSN->checkout();
+		// verify
+		if ( ! $checkout instanceof EE_Checkout) {
+			// instantiate EE_Checkout object for handling the properties of the current checkout process
+			$checkout = EE_Registry::instance()->load_file(
+				SPCO_INC_PATH,
+				'EE_Checkout',
+				'class', array(),
+				false
+			);
+		} else {
+			if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
+				$this->unlock_transaction();
+				wp_safe_redirect($checkout->redirect_url);
+				exit();
+			}
+		}
+		$checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
+		// verify again
+		if ( ! $checkout instanceof EE_Checkout) {
+			throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
+		}
+		// reset anything that needs a clean slate for each request
+		$checkout->reset_for_current_request();
+		return $checkout;
+	}
+
+
+
+	/**
+	 *    _get_request_vars
+	 *
+	 * @access    private
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	private function _get_request_vars()
+	{
+		// load classes
+		EED_Single_Page_Checkout::load_request_handler();
+		//make sure this request is marked as belonging to EE
+		EE_Registry::instance()->REQ->set_espresso_page(true);
+		// which step is being requested ?
+		$this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
+		// which step is being edited ?
+		$this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
+		// and what we're doing on the current step
+		$this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
+		// timestamp
+		$this->checkout->uts = EE_Registry::instance()->REQ->get('uts', 0);
+		// returning to edit ?
+		$this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
+		// add reg url link to registration query params
+		if ($this->checkout->reg_url_link && strpos($this->checkout->reg_url_link, '1-') !== 0) {
+			$this->checkout->reg_cache_where_params[0]['REG_url_link'] = $this->checkout->reg_url_link;
+		}
+		// or some other kind of revisit ?
+		$this->checkout->revisit = filter_var(
+			EE_Registry::instance()->REQ->get('revisit', false),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// and whether or not to generate a reg form for this request
+		$this->checkout->generate_reg_form = filter_var(
+			EE_Registry::instance()->REQ->get('generate_reg_form', true),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// and whether or not to process a reg form submission for this request
+		$this->checkout->process_form_submission = filter_var(
+			EE_Registry::instance()->REQ->get(
+				'process_form_submission',
+				$this->checkout->action === 'process_reg_step'
+			),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		$this->checkout->process_form_submission = filter_var(
+			$this->checkout->action !== 'display_spco_reg_step'
+				? $this->checkout->process_form_submission
+				: false,
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// $this->_display_request_vars();
+	}
+
+
+
+	/**
+	 *  _display_request_vars
+	 *
+	 * @access    protected
+	 * @return    void
+	 */
+	protected function _display_request_vars()
+	{
+		if ( ! WP_DEBUG) {
+			return;
+		}
+		EEH_Debug_Tools::printr($_REQUEST, '$_REQUEST', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->step, '$this->checkout->step', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->edit_step, '$this->checkout->edit_step', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->action, '$this->checkout->action', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->reg_url_link, '$this->checkout->reg_url_link', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->revisit, '$this->checkout->revisit', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->generate_reg_form, '$this->checkout->generate_reg_form', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->process_form_submission, '$this->checkout->process_form_submission', __FILE__, __LINE__);
+	}
+
+
+
+	/**
+	 * _block_bots
+	 * checks that the incoming request has either of the following set:
+	 *  a uts (unix timestamp) which indicates that the request was redirected from the Ticket Selector
+	 *  a REG URL Link, which indicates that the request is a return visit to SPCO for a valid TXN
+	 * so if you're not coming from the Ticket Selector nor returning for a valid IP...
+	 * then where you coming from man?
+	 *
+	 * @return boolean
+	 */
+	private function _block_bots()
+	{
+		$invalid_checkout_access = EED_Invalid_Checkout_Access::getInvalidCheckoutAccess();
+		if ($invalid_checkout_access->checkoutAccessIsInvalid($this->checkout)) {
+			return true;
+		}
+		return false;
+	}
+
+
+
+	/**
+	 *    _get_first_step
+	 *  gets slug for first step in $_reg_steps_array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    string
+	 */
+	private function _get_first_step()
+	{
+		$first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
+		return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
+	}
+
+
+
+	/**
+	 *    _load_and_instantiate_reg_steps
+	 *  instantiates each reg step based on the loaded reg_steps array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    bool
+	 */
+	private function _load_and_instantiate_reg_steps()
+	{
+		do_action('AHEE__Single_Page_Checkout___load_and_instantiate_reg_steps__start', $this->checkout);
+		// have reg_steps already been instantiated ?
+		if (
+			empty($this->checkout->reg_steps)
+			|| apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
+		) {
+			// if not, then loop through raw reg steps array
+			foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
+				if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
+					return false;
+				}
+			}
+			EE_Registry::instance()->CFG->registration->skip_reg_confirmation = true;
+			EE_Registry::instance()->CFG->registration->reg_confirmation_last = true;
+			// skip the registration_confirmation page ?
+			if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
+				// just remove it from the reg steps array
+				$this->checkout->remove_reg_step('registration_confirmation', false);
+			} else if (
+				isset($this->checkout->reg_steps['registration_confirmation'])
+				&& EE_Registry::instance()->CFG->registration->reg_confirmation_last
+			) {
+				// set the order to something big like 100
+				$this->checkout->set_reg_step_order('registration_confirmation', 100);
+			}
+			// filter the array for good luck
+			$this->checkout->reg_steps = apply_filters(
+				'FHEE__Single_Page_Checkout__load_reg_steps__reg_steps',
+				$this->checkout->reg_steps
+			);
+			// finally re-sort based on the reg step class order properties
+			$this->checkout->sort_reg_steps();
+		} else {
+			foreach ($this->checkout->reg_steps as $reg_step) {
+				// set all current step stati to FALSE
+				$reg_step->set_is_current_step(false);
+			}
+		}
+		if (empty($this->checkout->reg_steps)) {
+			EE_Error::add_error(
+				__('No Reg Steps were loaded..', 'event_espresso'),
+				__FILE__, __FUNCTION__, __LINE__
+			);
+			return false;
+		}
+		// make reg step details available to JS
+		$this->checkout->set_reg_step_JSON_info();
+		return true;
+	}
+
+
+
+	/**
+	 *     _load_and_instantiate_reg_step
+	 *
+	 * @access    private
+	 * @param array $reg_step
+	 * @param int   $order
+	 * @return bool
+	 */
+	private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0)
+	{
+		// we need a file_path, class_name, and slug to add a reg step
+		if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
+			// if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
+			if (
+				$this->checkout->reg_url_link
+				&& $this->checkout->step !== $reg_step['slug']
+				&& $reg_step['slug'] !== 'finalize_registration'
+				// normally at this point we would NOT load the reg step, but this filter can change that
+				&& apply_filters(
+					'FHEE__Single_Page_Checkout___load_and_instantiate_reg_step__bypass_reg_step',
+					true,
+					$reg_step,
+					$this->checkout
+				)
+			) {
+				return true;
+			}
+			// instantiate step class using file path and class name
+			$reg_step_obj = EE_Registry::instance()->load_file(
+				$reg_step['file_path'],
+				$reg_step['class_name'],
+				'class',
+				$this->checkout,
+				false
+			);
+			// did we gets the goods ?
+			if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
+				// set reg step order based on config
+				$reg_step_obj->set_order($order);
+				// add instantiated reg step object to the master reg steps array
+				$this->checkout->add_reg_step($reg_step_obj);
+			} else {
+				EE_Error::add_error(
+					__('The current step could not be set.', 'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+				return false;
+			}
+		} else {
+			if (WP_DEBUG) {
+				EE_Error::add_error(
+					sprintf(
+						__(
+							'A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s',
+							'event_espresso'
+						),
+						isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
+						isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
+						isset($reg_step['slug']) ? $reg_step['slug'] : '',
+						'<ul>',
+						'<li>',
+						'</li>',
+						'</ul>'
+					),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * _verify_transaction_and_get_registrations
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidEntityException
+	 * @throws EE_Error
+	 */
+	private function _verify_transaction_and_get_registrations()
+	{
+		// was there already a valid transaction in the checkout from the session ?
+		if ( ! $this->checkout->transaction instanceof EE_Transaction) {
+			// get transaction from db or session
+			$this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
+				? $this->_get_transaction_and_cart_for_previous_visit()
+				: $this->_get_cart_for_current_session_and_setup_new_transaction();
+			if ( ! $this->checkout->transaction instanceof EE_Transaction) {
+				EE_Error::add_error(
+					__('Your Registration and Transaction information could not be retrieved from the db.',
+						'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+				$this->checkout->transaction = EE_Transaction::new_instance();
+				// add some style and make it dance
+				$this->add_styles_and_scripts();
+				EED_Single_Page_Checkout::$_initialized = true;
+				return false;
+			}
+			// and the registrations for the transaction
+			$this->_get_registrations($this->checkout->transaction);
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _get_transaction_and_cart_for_previous_visit
+	 *
+	 * @access private
+	 * @return mixed EE_Transaction|NULL
+	 */
+	private function _get_transaction_and_cart_for_previous_visit()
+	{
+		/** @var $TXN_model EEM_Transaction */
+		$TXN_model = EE_Registry::instance()->load_model('Transaction');
+		// because the reg_url_link is present in the request,
+		// this is a return visit to SPCO, so we'll get the transaction data from the db
+		$transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
+		// verify transaction
+		if ($transaction instanceof EE_Transaction) {
+			// and get the cart that was used for that transaction
+			$this->checkout->cart = $this->_get_cart_for_transaction($transaction);
+			return $transaction;
+		}
+		EE_Error::add_error(
+			__('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'),
+			__FILE__, __FUNCTION__, __LINE__
+		);
+		return null;
+
+	}
+
+
+
+	/**
+	 * _get_cart_for_transaction
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	private function _get_cart_for_transaction($transaction)
+	{
+		return $this->checkout->get_cart_for_transaction($transaction);
+	}
+
+
+
+	/**
+	 * get_cart_for_transaction
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	public function get_cart_for_transaction(EE_Transaction $transaction)
+	{
+		return $this->checkout->get_cart_for_transaction($transaction);
+	}
+
+
+
+	/**
+	 * _get_transaction_and_cart_for_current_session
+	 *    generates a new EE_Transaction object and adds it to the $_transaction property.
+	 *
+	 * @access private
+	 * @return EE_Transaction
+	 * @throws EE_Error
+	 */
+	private function _get_cart_for_current_session_and_setup_new_transaction()
+	{
+		//  if there's no transaction, then this is the FIRST visit to SPCO
+		// so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
+		$this->checkout->cart = $this->_get_cart_for_transaction(null);
+		// and then create a new transaction
+		$transaction = $this->_initialize_transaction();
+		// verify transaction
+		if ($transaction instanceof EE_Transaction) {
+			// save it so that we have an ID for other objects to use
+			$transaction->save();
+			// and save TXN data to the cart
+			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
+		} else {
+			EE_Error::add_error(
+				__('A Valid Transaction could not be initialized.', 'event_espresso'),
+				__FILE__, __FUNCTION__, __LINE__
+			);
+		}
+		return $transaction;
+	}
+
+
+
+	/**
+	 *    generates a new EE_Transaction object and adds it to the $_transaction property.
+	 *
+	 * @access private
+	 * @return mixed EE_Transaction|NULL
+	 */
+	private function _initialize_transaction()
+	{
+		try {
+			// ensure cart totals have been calculated
+			$this->checkout->cart->get_grand_total()->recalculate_total_including_taxes();
+			// grab the cart grand total
+			$cart_total = $this->checkout->cart->get_cart_grand_total();
+			// create new TXN
+			$transaction = EE_Transaction::new_instance(
+				array(
+					'TXN_reg_steps' => $this->checkout->initialize_txn_reg_steps_array(),
+					'TXN_total'     => $cart_total > 0 ? $cart_total : 0,
+					'TXN_paid'      => 0,
+					'STS_ID'        => EEM_Transaction::failed_status_code,
+				)
+			);
+			// save it so that we have an ID for other objects to use
+			$transaction->save();
+			// set cron job for following up on TXNs after their session has expired
+			EE_Cron_Tasks::schedule_expired_transaction_check(
+				EE_Registry::instance()->SSN->expiration() + 1,
+				$transaction->ID()
+			);
+			return $transaction;
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		}
+		return null;
+	}
+
+
+	/**
+	 * _get_registrations
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidEntityException
+	 * @throws EE_Error
+	 */
+	private function _get_registrations(EE_Transaction $transaction)
+	{
+		// first step: grab the registrants  { : o
+		$registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
+		$this->checkout->total_ticket_count = count($registrations);
+		// verify registrations have been set
+		if (empty($registrations)) {
+			// if no cached registrations, then check the db
+			$registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
+			// still nothing ? well as long as this isn't a revisit
+			if (empty($registrations) && ! $this->checkout->revisit) {
+				// generate new registrations from scratch
+				$registrations = $this->_initialize_registrations($transaction);
+			}
+		}
+		// sort by their original registration order
+		usort($registrations, array('EED_Single_Page_Checkout', 'sort_registrations_by_REG_count'));
+		// then loop thru the array
+		foreach ($registrations as $registration) {
+			// verify each registration
+			if ($registration instanceof EE_Registration) {
+				// we display all attendee info for the primary registrant
+				if ($this->checkout->reg_url_link === $registration->reg_url_link()
+					&& $registration->is_primary_registrant()
+				) {
+					$this->checkout->primary_revisit = true;
+					break;
+				}
+				if ($this->checkout->revisit && $this->checkout->reg_url_link !== $registration->reg_url_link()) {
+					// but hide info if it doesn't belong to you
+					$transaction->clear_cache('Registration', $registration->ID());
+					$this->checkout->total_ticket_count--;
+				}
+				$this->checkout->set_reg_status_updated($registration->ID(), false);
+			}
+		}
+	}
+
+
+	/**
+	 *    adds related EE_Registration objects for each ticket in the cart to the current EE_Transaction object
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return    array
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidEntityException
+	 * @throws EE_Error
+	 */
+	private function _initialize_registrations(EE_Transaction $transaction)
+	{
+		$att_nmbr = 0;
+		$registrations = array();
+		if ($transaction instanceof EE_Transaction) {
+			/** @type EE_Registration_Processor $registration_processor */
+			$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+			$this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
+			// now let's add the cart items to the $transaction
+			foreach ($this->checkout->cart->get_tickets() as $line_item) {
+				//do the following for each ticket of this type they selected
+				for ($x = 1; $x <= $line_item->quantity(); $x++) {
+					$att_nmbr++;
+					/** @var EventEspresso\core\services\commands\registration\CreateRegistrationCommand $CreateRegistrationCommand */
+					$CreateRegistrationCommand = EE_Registry::instance()->create(
+						'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
+						array(
+							$transaction,
+							$line_item,
+							$att_nmbr,
+							$this->checkout->total_ticket_count,
+						)
+					);
+					// override capabilities for frontend registrations
+					if ( ! is_admin()) {
+						$CreateRegistrationCommand->setCapCheck(
+							new PublicCapabilities('', 'create_new_registration')
+						);
+					}
+					$registration = EE_Registry::instance()->BUS->execute($CreateRegistrationCommand);
+					if ( ! $registration instanceof EE_Registration) {
+						throw new InvalidEntityException($registration, 'EE_Registration');
+					}
+					$registrations[ $registration->ID() ] = $registration;
+				}
+			}
+			$registration_processor->fix_reg_final_price_rounding_issue($transaction);
+		}
+		return $registrations;
+	}
+
+
+
+	/**
+	 * sorts registrations by REG_count
+	 *
+	 * @access public
+	 * @param EE_Registration $reg_A
+	 * @param EE_Registration $reg_B
+	 * @return int
+	 */
+	public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B)
+	{
+		// this shouldn't ever happen within the same TXN, but oh well
+		if ($reg_A->count() === $reg_B->count()) {
+			return 0;
+		}
+		return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
+	}
+
+
+
+	/**
+	 *    _final_verifications
+	 * just makes sure that everything is set up correctly before proceeding
+	 *
+	 * @access    private
+	 * @return    bool
+	 * @throws EE_Error
+	 */
+	private function _final_verifications()
+	{
+		// filter checkout
+		$this->checkout = apply_filters(
+			'FHEE__EED_Single_Page_Checkout___final_verifications__checkout',
+			$this->checkout
+		);
+		//verify that current step is still set correctly
+		if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
+			EE_Error::add_error(
+				__('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// if returning to SPCO, then verify that primary registrant is set
+		if ( ! empty($this->checkout->reg_url_link)) {
+			$valid_registrant = $this->checkout->transaction->primary_registration();
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				EE_Error::add_error(
+					__('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+			$valid_registrant = null;
+			foreach (
+				$this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration
+			) {
+				if (
+					$registration instanceof EE_Registration
+					&& $registration->reg_url_link() === $this->checkout->reg_url_link
+				) {
+					$valid_registrant = $registration;
+				}
+			}
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				// hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
+				if (EED_Single_Page_Checkout::$_checkout_verified) {
+					// clear the session, mark the checkout as unverified, and try again
+					EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+					EED_Single_Page_Checkout::$_initialized = false;
+					EED_Single_Page_Checkout::$_checkout_verified = false;
+					$this->_initialize();
+					EE_Error::reset_notices();
+					return false;
+				}
+				EE_Error::add_error(
+					__(
+						'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+		}
+		// now that things have been kinda sufficiently verified,
+		// let's add the checkout to the session so that it's available to other systems
+		EE_Registry::instance()->SSN->set_checkout($this->checkout);
+		return true;
+	}
+
+
+
+	/**
+	 *    _initialize_reg_steps
+	 * first makes sure that EE_Transaction_Processor::set_reg_step_initiated() is called as required
+	 * then loops thru all of the active reg steps and calls the initialize_reg_step() method
+	 *
+	 * @access    private
+	 * @param bool $reinitializing
+	 * @throws EE_Error
+	 */
+	private function _initialize_reg_steps($reinitializing = false)
+	{
+		$this->checkout->set_reg_step_initiated($this->checkout->current_step);
+		// loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
+		foreach ($this->checkout->reg_steps as $reg_step) {
+			if ( ! $reg_step->initialize_reg_step()) {
+				// if not initialized then maybe this step is being removed...
+				if ( ! $reinitializing && $reg_step->is_current_step()) {
+					// if it was the current step, then we need to start over here
+					$this->_initialize_reg_steps(true);
+					return;
+				}
+				continue;
+			}
+			// add css and JS for current step
+			$reg_step->enqueue_styles_and_scripts();
+			// i18n
+			$reg_step->translate_js_strings();
+			if ($reg_step->is_current_step()) {
+				// the text that appears on the reg step form submit button
+				$reg_step->set_submit_button_text();
+			}
+		}
+		// dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
+		do_action(
+			"AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}",
+			$this->checkout->current_step
+		);
+	}
+
+
+
+	/**
+	 * _check_form_submission
+	 *
+	 * @access private
+	 * @return boolean
+	 */
+	private function _check_form_submission()
+	{
+		//does this request require the reg form to be generated ?
+		if ($this->checkout->generate_reg_form) {
+			// ever heard that song by Blue Rodeo ?
+			try {
+				$this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
+				// if not displaying a form, then check for form submission
+				if (
+					$this->checkout->process_form_submission
+					&& $this->checkout->current_step->reg_form->was_submitted()
+				) {
+					// clear out any old data in case this step is being run again
+					$this->checkout->current_step->set_valid_data(array());
+					// capture submitted form data
+					$this->checkout->current_step->reg_form->receive_form_submission(
+						apply_filters(
+							'FHEE__Single_Page_Checkout___check_form_submission__request_params',
+							EE_Registry::instance()->REQ->params(),
+							$this->checkout
+						)
+					);
+					// validate submitted form data
+					if ( ! $this->checkout->continue_reg || ! $this->checkout->current_step->reg_form->is_valid()) {
+						// thou shall not pass !!!
+						$this->checkout->continue_reg = false;
+						// any form validation errors?
+						if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
+							$submission_error_messages = array();
+							// bad, bad, bad registrant
+							foreach (
+								$this->checkout->current_step->reg_form->get_validation_errors_accumulated()
+								as $validation_error
+							) {
+								if ($validation_error instanceof EE_Validation_Error) {
+									$submission_error_messages[] = sprintf(
+										__('%s : %s', 'event_espresso'),
+										$validation_error->get_form_section()->html_label_text(),
+										$validation_error->getMessage()
+									);
+								}
+							}
+							EE_Error::add_error(
+								implode('<br />', $submission_error_messages),
+								__FILE__, __FUNCTION__, __LINE__
+							);
+						}
+						// well not really... what will happen is
+						// we'll just get redirected back to redo the current step
+						$this->go_to_next_step();
+						return false;
+					}
+				}
+			} catch (EE_Error $e) {
+				$e->get_error();
+			}
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _process_action
+	 *
+	 * @access private
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private function _process_form_action()
+	{
+		// what cha wanna do?
+		switch ($this->checkout->action) {
+			// AJAX next step reg form
+			case 'display_spco_reg_step' :
+				$this->checkout->redirect = false;
+				if (EE_Registry::instance()->REQ->ajax) {
+					$this->checkout->json_response->set_reg_step_html(
+						$this->checkout->current_step->display_reg_form()
+					);
+				}
+				break;
+			default :
+				// meh... do one of those other steps first
+				if (
+					! empty($this->checkout->action)
+					&& is_callable(array($this->checkout->current_step, $this->checkout->action))
+				) {
+					// dynamically creates hook point like:
+					//   AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
+					do_action(
+						"AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
+						$this->checkout->current_step
+					);
+					// call action on current step
+					if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
+						// good registrant, you get to proceed
+						if (
+							$this->checkout->current_step->success_message() !== ''
+							&& apply_filters(
+								'FHEE__Single_Page_Checkout___process_form_action__display_success',
+								false
+							)
+						) {
+							EE_Error::add_success(
+								$this->checkout->current_step->success_message()
+								. '<br />' . $this->checkout->next_step->_instructions()
+							);
+						}
+						// pack it up, pack it in...
+						$this->_setup_redirect();
+					}
+					// dynamically creates hook point like:
+					//  AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
+					do_action(
+						"AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
+						$this->checkout->current_step
+					);
+				} else {
+					EE_Error::add_error(
+						sprintf(
+							__(
+								'The requested form action "%s" does not exist for the current "%s" registration step.',
+								'event_espresso'
+							),
+							$this->checkout->action,
+							$this->checkout->current_step->name()
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			// end default
+		}
+		// store our progress so far
+		$this->checkout->stash_transaction_and_checkout();
+		// advance to the next step! If you pass GO, collect $200
+		$this->go_to_next_step();
+	}
+
+
+
+	/**
+	 *        add_styles_and_scripts
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public function add_styles_and_scripts()
+	{
+		// i18n
+		$this->translate_js_strings();
+		if ($this->checkout->admin_request) {
+			add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
+		} else {
+			add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
+		}
+	}
+
+
+
+	/**
+	 *        translate_js_strings
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public function translate_js_strings()
+	{
+		EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
+		EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
+		EE_Registry::$i18n_js_strings['server_error'] = __(
+			'An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_json_response'] = __(
+			'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['validation_error'] = __(
+			'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_payment_method'] = __(
+			'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['reg_step_error'] = __(
+			'This registration step could not be completed. Please refresh the page and try again.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_coupon'] = __(
+			'We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
+			__(
+				'Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.',
+				'event_espresso'
+			),
+			'<br/>',
+			'<br/>'
+		);
+		EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
+		EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
+		EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
+		EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
+		EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
+			__(
+				'%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please accept our apologies for any inconvenience this may have caused.%8$s',
+				'event_espresso'
+			),
+			'<h4 class="important-notice">',
+			'</h4>',
+			'<br />',
+			'<p>',
+			'<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+			'">',
+			'</a>',
+			'</p>'
+		);
+		EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters(
+			'FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit',
+			true
+		);
+		EE_Registry::$i18n_js_strings['session_extension'] = absint(
+			apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS)
+		);
+		EE_Registry::$i18n_js_strings['session_expiration'] = gmdate(
+			'M d, Y H:i:s',
+			EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)
+		);
+	}
+
+
+
+	/**
+	 *    enqueue_styles_and_scripts
+	 *
+	 * @access        public
+	 * @return        void
+	 * @throws EE_Error
+	 */
+	public function enqueue_styles_and_scripts()
+	{
+		// load css
+		wp_register_style(
+			'single_page_checkout',
+			SPCO_CSS_URL . 'single_page_checkout.css',
+			array('espresso_default'),
+			EVENT_ESPRESSO_VERSION
+		);
+		wp_enqueue_style('single_page_checkout');
+		// load JS
+		wp_register_script(
+			'jquery_plugin',
+			EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js',
+			array('jquery'),
+			'1.0.1',
+			true
+		);
+		wp_register_script(
+			'jquery_countdown',
+			EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js',
+			array('jquery_plugin'),
+			'2.0.2',
+			true
+		);
+		wp_register_script(
+			'single_page_checkout',
+			SPCO_JS_URL . 'single_page_checkout.js',
+			array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		if ($this->checkout->registration_form instanceof EE_Form_Section_Proper) {
+			$this->checkout->registration_form->enqueue_js();
+		}
+		if ($this->checkout->current_step->reg_form instanceof EE_Form_Section_Proper) {
+			$this->checkout->current_step->reg_form->enqueue_js();
+		}
+		wp_enqueue_script('single_page_checkout');
+		/**
+		 * global action hook for enqueueing styles and scripts with
+		 * spco calls.
+		 */
+		do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
+		/**
+		 * dynamic action hook for enqueueing styles and scripts with spco calls.
+		 * The hook will end up being something like:
+		 *      AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
+		 */
+		do_action(
+			'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(),
+			$this
+		);
+	}
+
+
+
+	/**
+	 *    display the Registration Single Page Checkout Form
+	 *
+	 * @access    private
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	private function _display_spco_reg_form()
+	{
+		// if registering via the admin, just display the reg form for the current step
+		if ($this->checkout->admin_request) {
+			EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
+		} else {
+			// add powered by EE msg
+			add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
+			$empty_cart = count(
+				$this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)
+			) < 1;
+			EE_Registry::$i18n_js_strings['empty_cart'] = $empty_cart;
+			$cookies_not_set_msg = '';
+			if ($empty_cart) {
+				$cookies_not_set_msg = apply_filters(
+					'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
+					sprintf(
+						__(
+							'%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s',
+							'event_espresso'
+						),
+						'<div class="ee-attention hidden" id="ee-cookies-not-set-msg">',
+						'</div>',
+						'<h6 class="important-notice">',
+						'</h6>',
+						'<p>',
+						'</p>',
+						'<br />',
+						'<a href="http://www.whatarecookies.com/enable.asp" target="_blank">',
+						'</a>'
+					)
+				);
+			}
+			$this->checkout->registration_form = new EE_Form_Section_Proper(
+				array(
+					'name'            => 'single-page-checkout',
+					'html_id'         => 'ee-single-page-checkout-dv',
+					'layout_strategy' =>
+						new EE_Template_Layout(
+							array(
+								'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
+								'template_args'        => array(
+									'empty_cart'              => $empty_cart,
+									'revisit'                 => $this->checkout->revisit,
+									'reg_steps'               => $this->checkout->reg_steps,
+									'next_step'               => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
+										? $this->checkout->next_step->slug()
+										: '',
+									'cancel_page_url'         => $this->checkout->cancel_page_url,
+									'empty_msg'               => apply_filters(
+										'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
+										sprintf(
+											__(
+												'You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
+												'event_espresso'
+											),
+											'<a href="'
+											. get_post_type_archive_link('espresso_events')
+											. '" title="',
+											'">',
+											'</a>'
+										)
+									),
+									'cookies_not_set_msg'     => $cookies_not_set_msg,
+									'registration_time_limit' => $this->checkout->get_registration_time_limit(),
+									'session_expiration'      => gmdate(
+										'M d, Y H:i:s',
+										EE_Registry::instance()->SSN->expiration()
+										+ (get_option('gmt_offset') * HOUR_IN_SECONDS)
+									),
+								),
+							)
+						),
+				)
+			);
+			// load template and add to output sent that gets filtered into the_content()
+			EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html());
+		}
+	}
+
+
+
+	/**
+	 *    add_extra_finalize_registration_inputs
+	 *
+	 * @access    public
+	 * @param $next_step
+	 * @internal  param string $label
+	 * @return void
+	 */
+	public function add_extra_finalize_registration_inputs($next_step)
+	{
+		if ($next_step === 'finalize_registration') {
+			echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
+		}
+	}
+
+
+
+	/**
+	 *    display_registration_footer
+	 *
+	 * @access    public
+	 * @return    string
+	 */
+	public static function display_registration_footer()
+	{
+		if (
+		apply_filters(
+			'FHEE__EE_Front__Controller__show_reg_footer',
+			EE_Registry::instance()->CFG->admin->show_reg_footer
+		)
+		) {
+			add_filter(
+				'FHEE__EEH_Template__powered_by_event_espresso__url',
+				function ($url) {
+					return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
+				}
+			);
+			echo apply_filters(
+				'FHEE__EE_Front_Controller__display_registration_footer',
+				\EEH_Template::powered_by_event_espresso(
+					'',
+					'espresso-registration-footer-dv',
+					array('utm_content' => 'registration_checkout')
+				)
+			);
+		}
+		return '';
+	}
+
+
+
+	/**
+	 *    unlock_transaction
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function unlock_transaction()
+	{
+		if ($this->checkout->transaction instanceof EE_Transaction) {
+			$this->checkout->transaction->unlock();
+		}
+	}
+
+
+
+	/**
+	 *        _setup_redirect
+	 *
+	 * @access    private
+	 * @return void
+	 */
+	private function _setup_redirect()
+	{
+		if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
+			$this->checkout->redirect = true;
+			if (empty($this->checkout->redirect_url)) {
+				$this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
+			}
+			$this->checkout->redirect_url = apply_filters(
+				'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url',
+				$this->checkout->redirect_url,
+				$this->checkout
+			);
+		}
+	}
+
+
+
+	/**
+	 *   handle ajax message responses and redirects
+	 *
+	 * @access public
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function go_to_next_step()
+	{
+		if (EE_Registry::instance()->REQ->ajax) {
+			// capture contents of output buffer we started earlier in the request, and insert into JSON response
+			$this->checkout->json_response->set_unexpected_errors(ob_get_clean());
+		}
+		$this->unlock_transaction();
+		// just return for these conditions
+		if (
+			$this->checkout->admin_request
+			|| $this->checkout->action === 'redirect_form'
+			|| $this->checkout->action === 'update_checkout'
+		) {
+			return;
+		}
+		// AJAX response
+		$this->_handle_json_response();
+		// redirect to next step or the Thank You page
+		$this->_handle_html_redirects();
+		// hmmm... must be something wrong, so let's just display the form again !
+		$this->_display_spco_reg_form();
+	}
+
+
+
+	/**
+	 *   _handle_json_response
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _handle_json_response()
+	{
+		// if this is an ajax request
+		if (EE_Registry::instance()->REQ->ajax) {
+			// DEBUG LOG
+			//$this->checkout->log(
+			//	__CLASS__, __FUNCTION__, __LINE__,
+			//	array(
+			//		'json_response_redirect_url' => $this->checkout->json_response->redirect_url(),
+			//		'redirect'                   => $this->checkout->redirect,
+			//		'continue_reg'               => $this->checkout->continue_reg,
+			//	)
+			//);
+			$this->checkout->json_response->set_registration_time_limit(
+				$this->checkout->get_registration_time_limit()
+			);
+			$this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
+			// just send the ajax (
+			$json_response = apply_filters(
+				'FHEE__EE_Single_Page_Checkout__JSON_response',
+				$this->checkout->json_response
+			);
+			echo $json_response;
+			exit();
+		}
+	}
+
+
+
+	/**
+	 *   _handle_redirects
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _handle_html_redirects()
+	{
+		// going somewhere ?
+		if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
+			// store notices in a transient
+			EE_Error::get_notices(false, true, true);
+			// DEBUG LOG
+			//$this->checkout->log(
+			//	__CLASS__, __FUNCTION__, __LINE__,
+			//	array(
+			//		'headers_sent' => headers_sent(),
+			//		'redirect_url'     => $this->checkout->redirect_url,
+			//		'headers_list'    => headers_list(),
+			//	)
+			//);
+			wp_safe_redirect($this->checkout->redirect_url);
+			exit();
+		}
+	}
+
+
+
+	/**
+	 *   set_checkout_anchor
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function set_checkout_anchor()
+	{
+		echo '<a id="checkout" style="float: left; margin-left: -999em;"></a>';
+	}