eventespresso / event-espresso-core

modules/single_page_checkout/EED_Single_Page_Checkout.module.php

Indentation +1792 added lines, -1792 removed lines

@@ -15,1796 +15,1796 @@
 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('\\', '/'), '/', plugin_dir_path(__FILE__)), '/') . '/'
-        );
-        define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css/');
-        define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img/');
-        define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js/');
-        define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc/');
-        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps/');
-        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates/');
-        EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice(
-        );
-    }
-
-
-    /**
-     * 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,
-                ),
-                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
-            $this->add_styles_and_scripts($this);
-            // 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(esc_html__('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(esc_html__('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';
-    }
-
-
-    /**
-     * instantiates each reg step based on the loaded reg_steps array
-     *
-     * @return    bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    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, $order)) {
-                    return false;
-                }
-            }
-            if (isset($this->checkout->reg_steps['registration_confirmation'])) {
-                // 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);
-                } elseif (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(
-                esc_html__('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(
-                    esc_html__('The current step could not be set.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-        } else {
-            if (WP_DEBUG) {
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            '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(
-                    esc_html__(
-                        '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
-                $this->add_styles_and_scripts($this);
-                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(
-            esc_html__('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(
-                esc_html__('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 (! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
-            EE_Error::add_error(
-                esc_html__(
-                    'We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // if returning to SPCO, then verify that primary registrant is set
-        if (! empty($this->checkout->reg_url_link)) {
-            $valid_registrant = $this->checkout->transaction->primary_registration();
-            if (! $valid_registrant instanceof EE_Registration) {
-                EE_Error::add_error(
-                    esc_html__(
-                        '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;
-                    $this->_initialize();
-                    EE_Error::reset_notices();
-                    return false;
-                }
-                EE_Error::add_error(
-                    esc_html__(
-                        'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-        }
-        // now that things have been kinda sufficiently verified,
-        // let's add the checkout to the session so that it's available to other systems
-        EE_Registry::instance()->SSN->set_checkout($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
-            $this->add_styles_and_scripts($reg_step);
-            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() !== '') {
-                            EE_Error::add_error(
-                                $this->checkout->current_step->reg_form->submission_error_message(),
-                                __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(
-                            esc_html__(
-                                '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();
-    }
-
-
-    /**
-     * @param EED_Single_Page_Checkout|EE_SPCO_Reg_Step $target
-     * @param object $target an object with the method `translate_js_strings` and `enqueue_styles_and_scripts`.
-     * @return        void
-     */
-    public function add_styles_and_scripts($target)
-    {
-        // i18n
-        $target->translate_js_strings();
-        if ($this->checkout->admin_request) {
-            add_action('admin_enqueue_scripts', array($target, 'enqueue_styles_and_scripts'), 10);
-        } else {
-            add_action('wp_enqueue_scripts', array($target, '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'] = esc_html__(
-            '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::$i18n_js_strings['invalid_json_response'] = esc_html__(
-            'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['validation_error'] = esc_html__(
-            'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_payment_method'] = esc_html__(
-            'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['reg_step_error'] = esc_html__(
-            'This registration step could not be completed. Please refresh the page and try again.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_coupon'] = esc_html__(
-            'We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
-            esc_html__(
-                '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::$i18n_js_strings['timer_years'] = esc_html__('years', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_months'] = esc_html__('months', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_weeks'] = esc_html__('weeks', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_days'] = esc_html__('days', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hours'] = esc_html__('hours', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minutes'] = esc_html__('minutes', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_seconds'] = esc_html__('seconds', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_year'] = esc_html__('year', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_month'] = esc_html__('month', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_week'] = esc_html__('week', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_day'] = esc_html__('day', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hour'] = esc_html__('hour', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minute'] = esc_html__('minute', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_second'] = esc_html__('second', 'event_espresso');
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice(
-        );
-        EE_Registry::$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'),
-            '2.1.0',
-            true
-        );
-        wp_register_script(
-            'single_page_checkout',
-            SPCO_JS_URL . 'single_page_checkout.js',
-            array('espresso_core', 'underscore', 'ee_form_section_validation'),
-            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');
-        if (apply_filters('FHEE__registration_page_wrapper_template__display_time_limit', false)) {
-            wp_enqueue_script('jquery_countdown');
-        }
-        /**
-         * 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) {
-                $cookies_not_set_msg = apply_filters(
-                    'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
-                    sprintf(
-                        esc_html__(
-                            '%1$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" rel="noopener noreferrer">',
-                        '</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
-                                        ? $this->checkout->next_step->slug()
-                                        : '',
-                                    'empty_msg'               => apply_filters(
-                                        'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
-                                        sprintf(
-                                            esc_html__(
-                                                'You need to %1$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) {
-            $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($this->checkout->redirect_url)) {
-            // store notices in a transient
-            EE_Error::get_notices(false, true, true);
-            wp_safe_redirect($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>';
-    }
-
-    /**
-     *    getRegistrationExpirationNotice
-     *
-     * @since     4.9.59.p
-     * @access    public
-     * @return    string
-     */
-    public static function getRegistrationExpirationNotice()
-    {
-        return sprintf(
-            esc_html__(
-                '%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>'
-        );
-    }
+	/**
+	 * $_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('\\', '/'), '/', plugin_dir_path(__FILE__)), '/') . '/'
+		);
+		define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css/');
+		define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img/');
+		define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js/');
+		define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc/');
+		define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps/');
+		define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates/');
+		EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice(
+		);
+	}
+
+
+	/**
+	 * 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,
+				),
+				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
+			$this->add_styles_and_scripts($this);
+			// 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(esc_html__('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(esc_html__('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';
+	}
+
+
+	/**
+	 * instantiates each reg step based on the loaded reg_steps array
+	 *
+	 * @return    bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	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, $order)) {
+					return false;
+				}
+			}
+			if (isset($this->checkout->reg_steps['registration_confirmation'])) {
+				// 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);
+				} elseif (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(
+				esc_html__('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(
+					esc_html__('The current step could not be set.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+		} else {
+			if (WP_DEBUG) {
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							'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(
+					esc_html__(
+						'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
+				$this->add_styles_and_scripts($this);
+				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(
+			esc_html__('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(
+				esc_html__('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 (! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
+			EE_Error::add_error(
+				esc_html__(
+					'We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// if returning to SPCO, then verify that primary registrant is set
+		if (! empty($this->checkout->reg_url_link)) {
+			$valid_registrant = $this->checkout->transaction->primary_registration();
+			if (! $valid_registrant instanceof EE_Registration) {
+				EE_Error::add_error(
+					esc_html__(
+						'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;
+					$this->_initialize();
+					EE_Error::reset_notices();
+					return false;
+				}
+				EE_Error::add_error(
+					esc_html__(
+						'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+		}
+		// now that things have been kinda sufficiently verified,
+		// let's add the checkout to the session so that it's available to other systems
+		EE_Registry::instance()->SSN->set_checkout($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
+			$this->add_styles_and_scripts($reg_step);
+			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() !== '') {
+							EE_Error::add_error(
+								$this->checkout->current_step->reg_form->submission_error_message(),
+								__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(
+							esc_html__(
+								'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();
+	}
+
+
+	/**
+	 * @param EED_Single_Page_Checkout|EE_SPCO_Reg_Step $target
+	 * @param object $target an object with the method `translate_js_strings` and `enqueue_styles_and_scripts`.
+	 * @return        void
+	 */
+	public function add_styles_and_scripts($target)
+	{
+		// i18n
+		$target->translate_js_strings();
+		if ($this->checkout->admin_request) {
+			add_action('admin_enqueue_scripts', array($target, 'enqueue_styles_and_scripts'), 10);
+		} else {
+			add_action('wp_enqueue_scripts', array($target, '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'] = esc_html__(
+			'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::$i18n_js_strings['invalid_json_response'] = esc_html__(
+			'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['validation_error'] = esc_html__(
+			'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_payment_method'] = esc_html__(
+			'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['reg_step_error'] = esc_html__(
+			'This registration step could not be completed. Please refresh the page and try again.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_coupon'] = esc_html__(
+			'We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
+			esc_html__(
+				'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::$i18n_js_strings['timer_years'] = esc_html__('years', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_months'] = esc_html__('months', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_weeks'] = esc_html__('weeks', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_days'] = esc_html__('days', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hours'] = esc_html__('hours', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minutes'] = esc_html__('minutes', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_seconds'] = esc_html__('seconds', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_year'] = esc_html__('year', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_month'] = esc_html__('month', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_week'] = esc_html__('week', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_day'] = esc_html__('day', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hour'] = esc_html__('hour', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minute'] = esc_html__('minute', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_second'] = esc_html__('second', 'event_espresso');
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice(
+		);
+		EE_Registry::$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'),
+			'2.1.0',
+			true
+		);
+		wp_register_script(
+			'single_page_checkout',
+			SPCO_JS_URL . 'single_page_checkout.js',
+			array('espresso_core', 'underscore', 'ee_form_section_validation'),
+			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');
+		if (apply_filters('FHEE__registration_page_wrapper_template__display_time_limit', false)) {
+			wp_enqueue_script('jquery_countdown');
+		}
+		/**
+		 * 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) {
+				$cookies_not_set_msg = apply_filters(
+					'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
+					sprintf(
+						esc_html__(
+							'%1$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" rel="noopener noreferrer">',
+						'</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
+										? $this->checkout->next_step->slug()
+										: '',
+									'empty_msg'               => apply_filters(
+										'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
+										sprintf(
+											esc_html__(
+												'You need to %1$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) {
+			$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($this->checkout->redirect_url)) {
+			// store notices in a transient
+			EE_Error::get_notices(false, true, true);
+			wp_safe_redirect($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>';
+	}
+
+	/**
+	 *    getRegistrationExpirationNotice
+	 *
+	 * @since     4.9.59.p
+	 * @access    public
+	 * @return    string
+	 */
+	public static function getRegistrationExpirationNotice()
+	{
+		return sprintf(
+			esc_html__(
+				'%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>'
+		);
+	}
 }

core/data_migration_scripts/4_1_0_stages/EE_DMS_4_1_0_shortcodes.dmsstage.php

Indentation +47 added lines, -48 removed lines

@@ -2,58 +2,57 @@
 
 /**
  * Goes through all the posts and pages, and converts old shortcodes to new ones
-
-*/
+ */
 
 class EE_DMS_4_1_0_shortcodes extends EE_Data_Migration_Script_Stage
 {
-    public function __construct()
-    {
-        global $wpdb;
-        $this->_pretty_name = __("Shortcodes", "event_espresso");
-        $this->_old_table = $wpdb->posts;
-        parent::__construct();
-    }
-    protected function _migrate_old_row($old_row)
-    {
-        $new_post_content = $this->_change_event_list_shortcode($old_row['post_content']);
-        global $wpdb;
-        $wpdb->query($wpdb->prepare("UPDATE ".$this->_old_table." SET post_content=%s WHERE ID=%d", $new_post_content, $old_row['ID']));
-    }
+	public function __construct()
+	{
+		global $wpdb;
+		$this->_pretty_name = __("Shortcodes", "event_espresso");
+		$this->_old_table = $wpdb->posts;
+		parent::__construct();
+	}
+	protected function _migrate_old_row($old_row)
+	{
+		$new_post_content = $this->_change_event_list_shortcode($old_row['post_content']);
+		global $wpdb;
+		$wpdb->query($wpdb->prepare("UPDATE ".$this->_old_table." SET post_content=%s WHERE ID=%d", $new_post_content, $old_row['ID']));
+	}
 
-    /**
-     * replaces [EVENT_LIST... with [ESPRESSO_EVENTS...]
-     * @param string $old_content
-     */
-    private function _change_event_list_shortcode($old_content)
-    {
-        return str_replace("[EVENT_LIST", "[ESPRESSO_EVENTS", $old_content);
-    }
+	/**
+	 * replaces [EVENT_LIST... with [ESPRESSO_EVENTS...]
+	 * @param string $old_content
+	 */
+	private function _change_event_list_shortcode($old_content)
+	{
+		return str_replace("[EVENT_LIST", "[ESPRESSO_EVENTS", $old_content);
+	}
 
-    public function _migration_step($num_items = 50)
-    {
-        global $wpdb;
-        $start_at_record = $this->count_records_migrated();
-        $rows = $wpdb->get_results($wpdb->prepare("SELECT * FROM $this->_old_table {$this->_sql_to_only_select_non_drafts()} LIMIT %d,%d", $start_at_record, $num_items), ARRAY_A);
-        $items_actually_migrated = 0;
-        foreach ($rows as $old_row) {
-            $this->_migrate_old_row($old_row);
-            $items_actually_migrated++;
-        }
-        if ($this->count_records_migrated() + $items_actually_migrated >= $this->count_records_to_migrate()) {
-            $this->set_completed();
-        }
-        return $items_actually_migrated;
-    }
-    public function _count_records_to_migrate()
-    {
-        global $wpdb;
-        $count = $wpdb->get_var("SELECT COUNT(id) FROM ".$this->_old_table.$this->_sql_to_only_select_non_drafts());
-        return $count;
-    }
+	public function _migration_step($num_items = 50)
+	{
+		global $wpdb;
+		$start_at_record = $this->count_records_migrated();
+		$rows = $wpdb->get_results($wpdb->prepare("SELECT * FROM $this->_old_table {$this->_sql_to_only_select_non_drafts()} LIMIT %d,%d", $start_at_record, $num_items), ARRAY_A);
+		$items_actually_migrated = 0;
+		foreach ($rows as $old_row) {
+			$this->_migrate_old_row($old_row);
+			$items_actually_migrated++;
+		}
+		if ($this->count_records_migrated() + $items_actually_migrated >= $this->count_records_to_migrate()) {
+			$this->set_completed();
+		}
+		return $items_actually_migrated;
+	}
+	public function _count_records_to_migrate()
+	{
+		global $wpdb;
+		$count = $wpdb->get_var("SELECT COUNT(id) FROM ".$this->_old_table.$this->_sql_to_only_select_non_drafts());
+		return $count;
+	}
 
-    private function _sql_to_only_select_non_drafts()
-    {
-        return " WHERE post_type NOT IN ('revision','auto-draft','attachment','nav_menu_item') ";
-    }
+	private function _sql_to_only_select_non_drafts()
+	{
+		return " WHERE post_type NOT IN ('revision','auto-draft','attachment','nav_menu_item') ";
+	}
 }

modules/ticket_sales_monitor/EED_Ticket_Sales_Monitor.module.php

Doc Comments +2 added lines, -1 removed lines

@@ -333,7 +333,7 @@ 
     /**
      * @param  EE_Ticket $ticket
      * @param  int       $quantity
-     * @return bool
+     * @return integer
      * @throws EE_Error
      */
     protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
@@ -984,6 +984,7 @@ 
      *                       reservations are now invalid. We don't use the list of invalid ticket line items because
      *                       we don't know which of those have already been taken into account when reducing ticket
      *                       reservation counts, and which haven't.
+     * @param string $source
      * @return int
      * @throws UnexpectedEntityException
      * @throws DomainException

Indentation +1051 added lines, -1051 removed lines

@@ -20,1056 +20,1056 @@
 class EED_Ticket_Sales_Monitor extends EED_Module
 {
 
-    const debug = false;
-
-    private static $nl = '';
-
-    /**
-     * an array of raw ticket data from EED_Ticket_Selector
-     *
-     * @var array $ticket_selections
-     */
-    protected $ticket_selections = array();
-
-    /**
-     * the raw ticket data from EED_Ticket_Selector is organized in rows
-     * according to how they are displayed in the actual Ticket_Selector
-     * this tracks the current row being processed
-     *
-     * @var int $current_row
-     */
-    protected $current_row = 0;
-
-    /**
-     * an array for tracking names of tickets that have sold out
-     *
-     * @var array $sold_out_tickets
-     */
-    protected $sold_out_tickets = array();
-
-    /**
-     * an array for tracking names of tickets that have had their quantities reduced
-     *
-     * @var array $decremented_tickets
-     */
-    protected $decremented_tickets = array();
-
-
-    /**
-     * set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @return    void
-     */
-    public static function set_hooks()
-    {
-        self::$nl = defined('EE_TESTS_DIR') ? "\n" : '<br />';
-        // release tickets for expired carts
-        add_action(
-            'EED_Ticket_Selector__process_ticket_selections__before',
-            array('EED_Ticket_Sales_Monitor', 'release_tickets_for_expired_carts'),
-            1
-        );
-        // check ticket reserves AFTER MER does it's check (hence priority 20)
-        add_filter(
-            'FHEE__EE_Ticket_Selector___add_ticket_to_cart__ticket_qty',
-            array('EED_Ticket_Sales_Monitor', 'validate_ticket_sale'),
-            20,
-            3
-        );
-        // add notices for sold out tickets
-        add_action(
-            'AHEE__EE_Ticket_Selector__process_ticket_selections__after_tickets_added_to_cart',
-            array('EED_Ticket_Sales_Monitor', 'post_notices'),
-            10
-        );
-
-        // handle tickets deleted from cart
-        add_action(
-            'FHEE__EED_Multi_Event_Registration__delete_ticket__ticket_removed_from_cart',
-            array('EED_Ticket_Sales_Monitor', 'ticket_removed_from_cart'),
-            10,
-            2
-        );
-        // handle emptied carts
-        add_action(
-            'AHEE__EE_Session__reset_cart__before_reset',
-            array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
-            10,
-            1
-        );
-        add_action(
-            'AHEE__EED_Multi_Event_Registration__empty_event_cart__before_delete_cart',
-            array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
-            10,
-            1
-        );
-        // handle cancelled registrations
-        add_action(
-            'AHEE__EE_Session__reset_checkout__before_reset',
-            array('EED_Ticket_Sales_Monitor', 'session_checkout_reset'),
-            10,
-            1
-        );
-        // cron tasks
-        add_action(
-            'AHEE__EE_Cron_Tasks__process_expired_transactions__abandoned_transaction',
-            array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
-            10,
-            1
-        );
-        add_action(
-            'AHEE__EE_Cron_Tasks__process_expired_transactions__incomplete_transaction',
-            array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
-            10,
-            1
-        );
-        add_action(
-            'AHEE__EE_Cron_Tasks__process_expired_transactions__failed_transaction',
-            array('EED_Ticket_Sales_Monitor', 'process_failed_transactions'),
-            10,
-            1
-        );
-    }
-
-
-    /**
-     * set_hooks_admin - for hooking into EE Admin Core, other modules, etc
-     *
-     * @return void
-     */
-    public static function set_hooks_admin()
-    {
-        EED_Ticket_Sales_Monitor::set_hooks();
-    }
-
-
-    /**
-     * @return EED_Ticket_Sales_Monitor|EED_Module
-     */
-    public static function instance()
-    {
-        return parent::get_instance(__CLASS__);
-    }
-
-
-    /**
-     * @param WP_Query $WP_Query
-     * @return    void
-     */
-    public function run($WP_Query)
-    {
-    }
-
-
-
-    /********************************** PRE_TICKET_SALES  **********************************/
-
-
-    /**
-     * Retrieves grand totals from the line items that have no TXN ID
-     * and timestamps less than the current time minus the session lifespan.
-     * These are carts that have been abandoned before the "registrant" even attempted to checkout.
-     * We're going to release the tickets for these line items before attempting to add more to the cart.
-     *
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws UnexpectedEntityException
-     */
-    public static function release_tickets_for_expired_carts()
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '()';
-        }
-        do_action('AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__begin');
-        $expired_ticket_IDs = array();
-        /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
-        $session_lifespan = LoaderFactory::getLoader()->getShared(
-            'EventEspresso\core\domain\values\session\SessionLifespan'
-        );
-        $timestamp = $session_lifespan->expiration();
-        $expired_ticket_line_items = EEM_Line_Item::instance()->getTicketLineItemsForExpiredCarts($timestamp);
-        if (self::debug) {
-            echo self::$nl . ' . time(): ' . time();
-            echo self::$nl . ' . time() as date: ' . date('Y-m-d H:i a');
-            echo self::$nl . ' . session expiration: ' . $session_lifespan->expiration();
-            echo self::$nl . ' . session expiration as date: ' . date('Y-m-d H:i a', $session_lifespan->expiration());
-            echo self::$nl . ' . timestamp: ' . $timestamp;
-            echo self::$nl . ' . $expired_ticket_line_items: ' . count($expired_ticket_line_items);
-        }
-        if (! empty($expired_ticket_line_items)) {
-            foreach ($expired_ticket_line_items as $expired_ticket_line_item) {
-                if (! $expired_ticket_line_item instanceof EE_Line_Item) {
-                    continue;
-                }
-                $expired_ticket_IDs[ $expired_ticket_line_item->OBJ_ID() ] = $expired_ticket_line_item->OBJ_ID();
-                if (self::debug) {
-                    echo self::$nl . ' . $expired_ticket_line_item->OBJ_ID(): ' . $expired_ticket_line_item->OBJ_ID();
-                    echo self::$nl . ' . $expired_ticket_line_item->timestamp(): '
-                         . date(
-                             'Y-m-d h:i a',
-                             $expired_ticket_line_item->timestamp(true)
-                         );
-                }
-            }
-            if (! empty($expired_ticket_IDs)) {
-                EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
-                    \EEM_Ticket::instance()->get_tickets_with_IDs($expired_ticket_IDs),
-                    array(),
-                    __FUNCTION__
-                );
-                // now  let's get rid of expired line items so that they can't interfere with tracking
-                EED_Ticket_Sales_Monitor::clear_expired_line_items_with_no_transaction($timestamp);
-            }
-        }
-        do_action(
-            'AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__end',
-            $expired_ticket_IDs,
-            $expired_ticket_line_items
-        );
-    }
-
-
-
-    /********************************** VALIDATE_TICKET_SALE  **********************************/
-
-
-    /**
-     * callback for 'FHEE__EED_Ticket_Selector__process_ticket_selections__valid_post_data'
-     *
-     * @param int       $qty
-     * @param EE_Ticket $ticket
-     * @return bool
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    public static function validate_ticket_sale($qty = 1, EE_Ticket $ticket)
-    {
-        $qty = absint($qty);
-        if ($qty > 0) {
-            $qty = EED_Ticket_Sales_Monitor::instance()->_validate_ticket_sale($ticket, $qty);
-        }
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '()';
-            echo self::$nl . self::$nl . '<b> RETURNED QTY: ' . $qty . '</b>';
-        }
-        return $qty;
-    }
-
-
-    /**
-     * checks whether an individual ticket is available for purchase based on datetime, and ticket details
-     *
-     * @param   EE_Ticket $ticket
-     * @param int         $qty
-     * @return int
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _validate_ticket_sale(EE_Ticket $ticket, $qty = 1)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        if (! $ticket instanceof EE_Ticket) {
-            return 0;
-        }
-        if (self::debug) {
-            echo self::$nl . '<b> . ticket->ID: ' . $ticket->ID() . '</b>';
-            echo self::$nl . ' . original ticket->reserved: ' . $ticket->reserved();
-        }
-        $ticket->refresh_from_db();
-        // first let's determine the ticket availability based on sales
-        $available = $ticket->qty('saleable');
-        if (self::debug) {
-            echo self::$nl . ' . . . ticket->qty: ' . $ticket->qty();
-            echo self::$nl . ' . . . ticket->sold: ' . $ticket->sold();
-            echo self::$nl . ' . . . ticket->reserved: ' . $ticket->reserved();
-            echo self::$nl . ' . . . ticket->qty(saleable): ' . $ticket->qty('saleable');
-            echo self::$nl . ' . . . available: ' . $available;
-        }
-        if ($available < 1) {
-            $this->_ticket_sold_out($ticket);
-            return 0;
-        }
-        if (self::debug) {
-            echo self::$nl . ' . . . qty: ' . $qty;
-        }
-        if ($available < $qty) {
-            $qty = $available;
-            if (self::debug) {
-                echo self::$nl . ' . . . QTY ADJUSTED: ' . $qty;
-            }
-            $this->_ticket_quantity_decremented($ticket);
-        }
-        if ($this->_reserve_ticket($ticket, $qty)) {
-            return $qty;
-        } else {
-            return 0;
-        }
-    }
-
-
-    /**
-     * increments ticket reserved based on quantity passed
-     *
-     * @param    EE_Ticket $ticket
-     * @param int          $quantity
-     * @return bool indicating success or failure
-     * @throws EE_Error
-     */
-    protected function _reserve_ticket(EE_Ticket $ticket, $quantity = 1)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . ' . . . INCREASE RESERVED: ' . $quantity;
-        }
-        return $ticket->increaseReserved($quantity, 'TicketSalesMonitor:' . __LINE__);
-    }
-
-
-    /**
-     * @param  EE_Ticket $ticket
-     * @param  int       $quantity
-     * @return bool
-     * @throws EE_Error
-     */
-    protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
-    {
-        if (self::debug) {
-            echo self::$nl . ' . . . ticket->ID: ' . $ticket->ID();
-            echo self::$nl . ' . . . ticket->reserved before: ' . $ticket->reserved();
-        }
-        $ticket->decreaseReserved($quantity, true, 'TicketSalesMonitor:' . __LINE__);
-        if (self::debug) {
-            echo self::$nl . ' . . . ticket->reserved after: ' . $ticket->reserved();
-        }
-        return $ticket->save() ? 1 : 0;
-    }
-
-
-    /**
-     * removes quantities within the ticket selector based on zero ticket availability
-     *
-     * @param    EE_Ticket $ticket
-     * @return    void
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _ticket_sold_out(EE_Ticket $ticket)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
-        }
-        $this->sold_out_tickets[] = $this->_get_ticket_and_event_name($ticket);
-    }
-
-
-    /**
-     * adjusts quantities within the ticket selector based on decreased ticket availability
-     *
-     * @param    EE_Ticket $ticket
-     * @return void
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _ticket_quantity_decremented(EE_Ticket $ticket)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
-        }
-        $this->decremented_tickets[] = $this->_get_ticket_and_event_name($ticket);
-    }
-
-
-    /**
-     * builds string out of ticket and event name
-     *
-     * @param    EE_Ticket $ticket
-     * @return string
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _get_ticket_and_event_name(EE_Ticket $ticket)
-    {
-        $event = $ticket->get_related_event();
-        if ($event instanceof EE_Event) {
-            $ticket_name = sprintf(
-                _x('%1$s for %2$s', 'ticket name for event name', 'event_espresso'),
-                $ticket->name(),
-                $event->name()
-            );
-        } else {
-            $ticket_name = $ticket->name();
-        }
-        return $ticket_name;
-    }
-
-
-
-    /********************************** EVENT CART  **********************************/
-
-
-    /**
-     * releases or reserves ticket(s) based on quantity passed
-     *
-     * @param  EE_Line_Item $line_item
-     * @param  int          $quantity
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function ticket_quantity_updated(EE_Line_Item $line_item, $quantity = 1)
-    {
-        $ticket = EEM_Ticket::instance()->get_one_by_ID(absint($line_item->OBJ_ID()));
-        if ($ticket instanceof EE_Ticket) {
-            $ticket->add_extra_meta(
-                EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                __LINE__ . ') ' . __METHOD__ . '()'
-            );
-            if ($quantity > 0) {
-                EED_Ticket_Sales_Monitor::instance()->_reserve_ticket($ticket, $quantity);
-            } else {
-                EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
-            }
-        }
-    }
-
-
-    /**
-     * releases reserved ticket(s) based on quantity passed
-     *
-     * @param  EE_Ticket $ticket
-     * @param  int       $quantity
-     * @return void
-     * @throws EE_Error
-     */
-    public static function ticket_removed_from_cart(EE_Ticket $ticket, $quantity = 1)
-    {
-        $ticket->add_extra_meta(
-            EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-            __LINE__ . ') ' . __METHOD__ . '()'
-        );
-        EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
-    }
-
-
-
-    /********************************** POST_NOTICES  **********************************/
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function post_notices()
-    {
-        EED_Ticket_Sales_Monitor::instance()->_post_notices();
-    }
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _post_notices()
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        $refresh_msg = '';
-        $none_added_msg = '';
-        if (defined('DOING_AJAX') && DOING_AJAX) {
-            $refresh_msg = __(
-                'Please refresh the page to view updated ticket quantities.',
-                'event_espresso'
-            );
-            $none_added_msg = __('No tickets were added for the event.', 'event_espresso');
-        }
-        if (! empty($this->sold_out_tickets)) {
-            EE_Error::add_attention(
-                sprintf(
-                    apply_filters(
-                        'FHEE__EED_Ticket_Sales_Monitor___post_notices__sold_out_tickets_notice',
-                        __(
-                            'We\'re sorry...%1$sThe following items have sold out since you first viewed this page, and can no longer be registered for:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
-                            'event_espresso'
-                        )
-                    ),
-                    '<br />',
-                    implode('<br />', $this->sold_out_tickets),
-                    $none_added_msg,
-                    $refresh_msg
-                )
-            );
-            // alter code flow in the Ticket Selector for better UX
-            add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__tckts_slctd', '__return_true');
-            add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__success', '__return_false');
-            $this->sold_out_tickets = array();
-            // and reset the cart
-            EED_Ticket_Sales_Monitor::session_cart_reset(EE_Registry::instance()->SSN);
-        }
-        if (! empty($this->decremented_tickets)) {
-            EE_Error::add_attention(
-                sprintf(
-                    apply_filters(
-                        'FHEE__EED_Ticket_Sales_Monitor___ticket_quantity_decremented__notice',
-                        __(
-                            'We\'re sorry...%1$sDue to sales that have occurred since you first viewed the last page, the following items have had their quantities adjusted to match the current available amount:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
-                            'event_espresso'
-                        )
-                    ),
-                    '<br />',
-                    implode('<br />', $this->decremented_tickets),
-                    $none_added_msg,
-                    $refresh_msg
-                )
-            );
-            $this->decremented_tickets = array();
-        }
-    }
-
-
-
-    /********************************** RELEASE_ALL_RESERVED_TICKETS_FOR_TRANSACTION  **********************************/
-
-
-    /**
-     * releases reserved tickets for all registrations of an EE_Transaction
-     * by default, will NOT release tickets for finalized transactions
-     *
-     * @param    EE_Transaction $transaction
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    protected function _release_all_reserved_tickets_for_transaction(EE_Transaction $transaction)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . transaction->ID: ' . $transaction->ID();
-            echo self::$nl . ' . TXN status_ID: ' . $transaction->status_ID();
-        }
-        // check if 'finalize_registration' step has been completed...
-        $finalized = $transaction->reg_step_completed('finalize_registration');
-        if (self::debug) {
-            // DEBUG LOG
-            EEH_Debug_Tools::log(
-                __CLASS__,
-                __FUNCTION__,
-                __LINE__,
-                array('finalized' => $finalized),
-                false,
-                'EE_Transaction: ' . $transaction->ID()
-            );
-        }
-        // how many tickets were released
-        $count = 0;
-        if (self::debug) {
-            echo self::$nl . ' . . . TXN finalized: ' . $finalized;
-        }
-        $release_tickets_with_TXN_status = array(
-            EEM_Transaction::failed_status_code,
-            EEM_Transaction::abandoned_status_code,
-            EEM_Transaction::incomplete_status_code,
-        );
-        $events = array();
-        // if the session is getting cleared BEFORE the TXN has been finalized or the transaction is not completed
-        if (! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
-            // cancel any reserved tickets for registrations that were not approved
-            $registrations = $transaction->registrations();
-            if (self::debug) {
-                echo self::$nl . ' . . . # registrations: ' . count($registrations);
-                $reg = reset($registrations);
-                $ticket = $reg->ticket();
-                if ($ticket instanceof EE_Ticket) {
-                    $ticket->add_extra_meta(
-                        EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') Release All Tickets TXN:' . $transaction->ID()
-                    );
-                }
-            }
-            if (! empty($registrations)) {
-                foreach ($registrations as $registration) {
-                    if ($registration instanceof EE_Registration
-                        && $this->_release_reserved_ticket_for_registration($registration, $transaction)
-                    ) {
-                        $count++;
-                        $events[ $registration->event_ID() ] = $registration->event();
-                    }
-                }
-            }
-        }
-        if ($events !== array()) {
-            foreach ($events as $event) {
-                /** @var EE_Event $event */
-                $event->perform_sold_out_status_check();
-            }
-        }
-        return $count;
-    }
-
-
-    /**
-     * releases reserved tickets for an EE_Registration
-     * by default, will NOT release tickets for APPROVED registrations
-     *
-     * @param EE_Registration $registration
-     * @param EE_Transaction  $transaction
-     * @return int
-     * @throws EE_Error
-     */
-    protected function _release_reserved_ticket_for_registration(
-        EE_Registration $registration,
-        EE_Transaction $transaction
-    ) {
-        $STS_ID = $transaction->status_ID();
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . . registration->ID: ' . $registration->ID();
-            echo self::$nl . ' . . registration->status_ID: ' . $registration->status_ID();
-            echo self::$nl . ' . . transaction->status_ID(): ' . $STS_ID;
-        }
-        if (// release Tickets for Failed Transactions and Abandoned Transactions
-            $STS_ID === EEM_Transaction::failed_status_code
-            || $STS_ID === EEM_Transaction::abandoned_status_code
-            || (
-                // also release Tickets for Incomplete Transactions, but ONLY if the Registrations are NOT Approved
-                $STS_ID === EEM_Transaction::incomplete_status_code
-                && $registration->status_ID() !== EEM_Registration::status_id_approved
-            )
-        ) {
-            if (self::debug) {
-                echo self::$nl . self::$nl . ' . . RELEASE RESERVED TICKET';
-                $rsrvd = $registration->get_extra_meta(EE_Registration::HAS_RESERVED_TICKET_KEY, true);
-                echo self::$nl . ' . . . registration HAS_RESERVED_TICKET_KEY: ';
-                var_dump($rsrvd);
-            }
-            $registration->release_reserved_ticket(true, 'TicketSalesMonitor:' . __LINE__);
-            return 1;
-        }
-        return 0;
-    }
-
-
-
-    /********************************** SESSION_CART_RESET  **********************************/
-
-
-    /**
-     * callback hooked into 'AHEE__EE_Session__reset_cart__before_reset'
-     *
-     * @param EE_Session $session
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function session_cart_reset(EE_Session $session)
-    {
-        // don't release tickets if checkout was already reset
-        if (did_action('AHEE__EE_Session__reset_checkout__before_reset')) {
-            return;
-        }
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        // first check of the session has a valid Checkout object
-        $checkout = $session->checkout();
-        if ($checkout instanceof EE_Checkout) {
-            // and use that to clear ticket reservations because it will update the associated registration meta data
-            EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
-            return;
-        }
-        $cart = $session->cart();
-        if ($cart instanceof EE_Cart) {
-            if (self::debug) {
-                echo self::$nl . self::$nl . ' cart instance of EE_Cart: ';
-            }
-            EED_Ticket_Sales_Monitor::instance()->_session_cart_reset($cart, $session);
-        } else {
-            if (self::debug) {
-                echo self::$nl . self::$nl . ' invalid EE_Cart: ';
-                var_export($cart, true);
-            }
-        }
-    }
-
-
-    /**
-     * releases reserved tickets in the EE_Cart
-     *
-     * @param EE_Cart $cart
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _session_cart_reset(EE_Cart $cart, EE_Session $session)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        $ticket_line_items = $cart->get_tickets();
-        if (empty($ticket_line_items)) {
-            return;
-        }
-        if (self::debug) {
-            echo '<br /> . ticket_line_item count: ' . count($ticket_line_items);
-        }
-        foreach ($ticket_line_items as $ticket_line_item) {
-            if (self::debug) {
-                echo self::$nl . ' . ticket_line_item->ID(): ' . $ticket_line_item->ID();
-            }
-            if ($ticket_line_item instanceof EE_Line_Item && $ticket_line_item->OBJ_type() === 'Ticket') {
-                if (self::debug) {
-                    echo self::$nl . ' . . ticket_line_item->OBJ_ID(): ' . $ticket_line_item->OBJ_ID();
-                }
-                $ticket = EEM_Ticket::instance()->get_one_by_ID($ticket_line_item->OBJ_ID());
-                if ($ticket instanceof EE_Ticket) {
-                    if (self::debug) {
-                        echo self::$nl . ' . . ticket->ID(): ' . $ticket->ID();
-                        echo self::$nl . ' . . ticket_line_item->quantity(): ' . $ticket_line_item->quantity();
-                    }
-                    $ticket->add_extra_meta(
-                        EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') ' . __METHOD__ . '() SID = ' . $session->id()
-                    );
-                    $this->_release_reserved_ticket($ticket, $ticket_line_item->quantity());
-                }
-            }
-        }
-        if (self::debug) {
-            echo self::$nl . self::$nl . ' RESET COMPLETED ';
-        }
-    }
-
-
-
-    /********************************** SESSION_CHECKOUT_RESET  **********************************/
-
-
-    /**
-     * callback hooked into 'AHEE__EE_Session__reset_checkout__before_reset'
-     *
-     * @param EE_Session $session
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    public static function session_checkout_reset(EE_Session $session)
-    {
-        // don't release tickets if cart was already reset
-        if (did_action('AHEE__EE_Session__reset_cart__before_reset')) {
-            return;
-        }
-        $checkout = $session->checkout();
-        if ($checkout instanceof EE_Checkout) {
-            EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
-        }
-    }
-
-
-    /**
-     * releases reserved tickets for the EE_Checkout->transaction
-     *
-     * @param EE_Checkout $checkout
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    protected function _session_checkout_reset(EE_Checkout $checkout)
-    {
-        if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        // we want to release the each registration's reserved tickets if the session was cleared, but not if this is a revisit
-        if ($checkout->revisit || ! $checkout->transaction instanceof EE_Transaction) {
-            return;
-        }
-        $this->_release_all_reserved_tickets_for_transaction($checkout->transaction);
-    }
-
-
-
-    /********************************** SESSION_EXPIRED_RESET  **********************************/
-
-
-    /**
-     * @param    EE_Session $session
-     * @return    void
-     */
-    public static function session_expired_reset(EE_Session $session)
-    {
-    }
-
-
-
-    /********************************** PROCESS_ABANDONED_TRANSACTIONS  **********************************/
-
-
-    /**
-     * releases reserved tickets for all registrations of an ABANDONED EE_Transaction
-     * by default, will NOT release tickets for free transactions, or any that have received a payment
-     *
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    public static function process_abandoned_transactions(EE_Transaction $transaction)
-    {
-        // is this TXN free or has any money been paid towards this TXN? If so, then leave it alone
-        if ($transaction->is_free() || $transaction->paid() > 0) {
-            if (self::debug) {
-                // DEBUG LOG
-                EEH_Debug_Tools::log(
-                    __CLASS__,
-                    __FUNCTION__,
-                    __LINE__,
-                    array($transaction),
-                    false,
-                    'EE_Transaction: ' . $transaction->ID()
-                );
-            }
-            return;
-        }
-        // have their been any successful payments made ?
-        $payments = $transaction->payments();
-        foreach ($payments as $payment) {
-            if ($payment instanceof EE_Payment && $payment->status() === EEM_Payment::status_id_approved) {
-                if (self::debug) {
-                    // DEBUG LOG
-                    EEH_Debug_Tools::log(
-                        __CLASS__,
-                        __FUNCTION__,
-                        __LINE__,
-                        array($payment),
-                        false,
-                        'EE_Transaction: ' . $transaction->ID()
-                    );
-                }
-                return;
-            }
-        }
-        // since you haven't even attempted to pay for your ticket...
-        EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
-    }
-
-
-
-    /********************************** PROCESS_FAILED_TRANSACTIONS  **********************************/
-
-
-    /**
-     * releases reserved tickets for absolutely ALL registrations of a FAILED EE_Transaction
-     *
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    public static function process_failed_transactions(EE_Transaction $transaction)
-    {
-        // since you haven't even attempted to pay for your ticket...
-        EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
-    }
-
-
-
-    /********************************** RESET RESERVATION COUNTS  *********************************/
-
-
-    /**
-     * Resets the ticket and datetime reserved counts.
-     *
-     * For all the tickets with reservations, recalculates what their actual reserved counts should be based
-     * on the valid transactions.
-     *
-     * @return int number of tickets whose reservations were released.
-     * @throws EE_Error
-     * @throws DomainException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     * @throws UnexpectedEntityException
-     * @throws ReflectionException
-     */
-    public static function reset_reservation_counts()
-    {
-        /** @var EE_Line_Item[] $valid_reserved_tickets */
-        $valid_reserved_tickets = array();
-        /** @var EE_Transaction[] $transactions_in_progress */
-        $transactions_in_progress = EEM_Transaction::instance()->get_transactions_in_progress();
-        foreach ($transactions_in_progress as $transaction) {
-            // if this TXN has been fully completed, then skip it
-            if ($transaction->reg_step_completed('finalize_registration')) {
-                continue;
-            }
-            $total_line_item = $transaction->total_line_item();
-            // $transaction_in_progress->line
-            if (! $total_line_item instanceof EE_Line_Item) {
-                throw new DomainException(
-                    esc_html__(
-                        'Transaction does not have a valid Total Line Item associated with it.',
-                        'event_espresso'
-                    )
-                );
-            }
-            $valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
-                $total_line_item
-            );
-        }
-        $total_line_items = EEM_Line_Item::instance()->get_total_line_items_for_active_carts();
-        foreach ($total_line_items as $total_line_item) {
-            $valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
-                $total_line_item
-            );
-        }
-        $tickets_with_reservations = EEM_Ticket::instance()->get_tickets_with_reservations();
-        return EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
-            $tickets_with_reservations,
-            $valid_reserved_tickets,
-            __FUNCTION__
-        );
-    }
-
-
-    /**
-     * @param EE_Line_Item $total_line_item
-     * @return EE_Line_Item[]
-     */
-    private static function get_ticket_line_items_for_grand_total(EE_Line_Item $total_line_item)
-    {
-        /** @var EE_Line_Item[] $valid_reserved_tickets */
-        $valid_reserved_tickets = array();
-        $ticket_line_items = EEH_Line_Item::get_ticket_line_items($total_line_item);
-        foreach ($ticket_line_items as $ticket_line_item) {
-            if ($ticket_line_item instanceof EE_Line_Item) {
-                $valid_reserved_tickets[ $ticket_line_item->ID() ] = $ticket_line_item;
-            }
-        }
-        return $valid_reserved_tickets;
-    }
-
-
-    /**
-     * Releases ticket and datetime reservations (ie, reduces the number of reserved spots on them).
-     *
-     * Given the list of tickets which have reserved spots on them, uses the complete list of line items for tickets
-     * whose transactions aren't complete and also aren't yet expired (ie, they're incomplete and younger than the
-     * session's expiry time) to update the ticket (and their datetimes') reserved counts.
-     *
-     * @param EE_Ticket[]    $tickets_with_reservations all tickets with TKT_reserved > 0
-     * @param EE_Line_Item[] $valid_reserved_ticket_line_items all line items for tickets and incomplete transactions
-     *                       whose session has NOT expired. We will use these to determine the number of ticket
-     *                       reservations are now invalid. We don't use the list of invalid ticket line items because
-     *                       we don't know which of those have already been taken into account when reducing ticket
-     *                       reservation counts, and which haven't.
-     * @return int
-     * @throws UnexpectedEntityException
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    protected static function release_reservations_for_tickets(
-        array $tickets_with_reservations,
-        array $valid_reserved_ticket_line_items = array(),
-        $source
-    ) {
-        $total_tickets_released = 0;
-        $sold_out_events = array();
-        foreach ($tickets_with_reservations as $ticket_with_reservations) {
-            if (! $ticket_with_reservations instanceof EE_Ticket) {
-                continue;
-            }
-            // The $valid_reserved_ticket_line_items tells us what the reserved count on their tickets (and datetimes)
-            // SHOULD be. Instead of just directly updating the list, we're going to use EE_Ticket::decreaseReserved()
-            // to try to avoid race conditions, so instead of just finding the number to update TO, we're going to find
-            // the number to RELEASE. It's the same end result, just different path.
-            // Begin by assuming we're going to release all the reservations on this ticket.
-            $expired_reservations_count = $ticket_with_reservations->reserved();
-            // Now reduce that number using the list of current valid reservations.
-            foreach ($valid_reserved_ticket_line_items as $valid_reserved_ticket_line_item) {
-                if ($valid_reserved_ticket_line_item instanceof EE_Line_Item
-                    && $valid_reserved_ticket_line_item->OBJ_ID() === $ticket_with_reservations->ID()
-                ) {
-                    $expired_reservations_count -= $valid_reserved_ticket_line_item->quantity();
-                }
-            }
-            // Only bother saving the tickets and datetimes if we're actually going to release some spots.
-            if ($expired_reservations_count > 0) {
-                $ticket_with_reservations->add_extra_meta(
-                    EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                    __LINE__ . ') ' . $source . '()'
-                );
-                $ticket_with_reservations->decreaseReserved($expired_reservations_count, true, 'TicketSalesMonitor:' . __LINE__);
-                $total_tickets_released += $expired_reservations_count;
-                $event = $ticket_with_reservations->get_related_event();
-                // track sold out events
-                if ($event instanceof EE_Event && $event->is_sold_out()) {
-                    $sold_out_events[] = $event;
-                }
-            }
-        }
-        // Double check whether sold out events should remain sold out after releasing tickets
-        if ($sold_out_events !== array()) {
-            foreach ($sold_out_events as $sold_out_event) {
-                /** @var EE_Event $sold_out_event */
-                $sold_out_event->perform_sold_out_status_check();
-            }
-        }
-        return $total_tickets_released;
-    }
-
-
-
-    /********************************** SHUTDOWN  **********************************/
-
-
-    /**
-     * @param int $timestamp
-     * @return false|int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function clear_expired_line_items_with_no_transaction($timestamp = 0)
-    {
-        /** @type WPDB $wpdb */
-        global $wpdb;
-        if (! absint($timestamp)) {
-            /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
-            $session_lifespan = LoaderFactory::getLoader()->getShared(
-                'EventEspresso\core\domain\values\session\SessionLifespan'
-            );
-            $timestamp = $session_lifespan->expiration();
-        }
-        return $wpdb->query(
-            $wpdb->prepare(
-                'DELETE FROM ' . EEM_Line_Item::instance()->table() . '
+	const debug = false;
+
+	private static $nl = '';
+
+	/**
+	 * an array of raw ticket data from EED_Ticket_Selector
+	 *
+	 * @var array $ticket_selections
+	 */
+	protected $ticket_selections = array();
+
+	/**
+	 * the raw ticket data from EED_Ticket_Selector is organized in rows
+	 * according to how they are displayed in the actual Ticket_Selector
+	 * this tracks the current row being processed
+	 *
+	 * @var int $current_row
+	 */
+	protected $current_row = 0;
+
+	/**
+	 * an array for tracking names of tickets that have sold out
+	 *
+	 * @var array $sold_out_tickets
+	 */
+	protected $sold_out_tickets = array();
+
+	/**
+	 * an array for tracking names of tickets that have had their quantities reduced
+	 *
+	 * @var array $decremented_tickets
+	 */
+	protected $decremented_tickets = array();
+
+
+	/**
+	 * set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @return    void
+	 */
+	public static function set_hooks()
+	{
+		self::$nl = defined('EE_TESTS_DIR') ? "\n" : '<br />';
+		// release tickets for expired carts
+		add_action(
+			'EED_Ticket_Selector__process_ticket_selections__before',
+			array('EED_Ticket_Sales_Monitor', 'release_tickets_for_expired_carts'),
+			1
+		);
+		// check ticket reserves AFTER MER does it's check (hence priority 20)
+		add_filter(
+			'FHEE__EE_Ticket_Selector___add_ticket_to_cart__ticket_qty',
+			array('EED_Ticket_Sales_Monitor', 'validate_ticket_sale'),
+			20,
+			3
+		);
+		// add notices for sold out tickets
+		add_action(
+			'AHEE__EE_Ticket_Selector__process_ticket_selections__after_tickets_added_to_cart',
+			array('EED_Ticket_Sales_Monitor', 'post_notices'),
+			10
+		);
+
+		// handle tickets deleted from cart
+		add_action(
+			'FHEE__EED_Multi_Event_Registration__delete_ticket__ticket_removed_from_cart',
+			array('EED_Ticket_Sales_Monitor', 'ticket_removed_from_cart'),
+			10,
+			2
+		);
+		// handle emptied carts
+		add_action(
+			'AHEE__EE_Session__reset_cart__before_reset',
+			array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
+			10,
+			1
+		);
+		add_action(
+			'AHEE__EED_Multi_Event_Registration__empty_event_cart__before_delete_cart',
+			array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
+			10,
+			1
+		);
+		// handle cancelled registrations
+		add_action(
+			'AHEE__EE_Session__reset_checkout__before_reset',
+			array('EED_Ticket_Sales_Monitor', 'session_checkout_reset'),
+			10,
+			1
+		);
+		// cron tasks
+		add_action(
+			'AHEE__EE_Cron_Tasks__process_expired_transactions__abandoned_transaction',
+			array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
+			10,
+			1
+		);
+		add_action(
+			'AHEE__EE_Cron_Tasks__process_expired_transactions__incomplete_transaction',
+			array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
+			10,
+			1
+		);
+		add_action(
+			'AHEE__EE_Cron_Tasks__process_expired_transactions__failed_transaction',
+			array('EED_Ticket_Sales_Monitor', 'process_failed_transactions'),
+			10,
+			1
+		);
+	}
+
+
+	/**
+	 * set_hooks_admin - for hooking into EE Admin Core, other modules, etc
+	 *
+	 * @return void
+	 */
+	public static function set_hooks_admin()
+	{
+		EED_Ticket_Sales_Monitor::set_hooks();
+	}
+
+
+	/**
+	 * @return EED_Ticket_Sales_Monitor|EED_Module
+	 */
+	public static function instance()
+	{
+		return parent::get_instance(__CLASS__);
+	}
+
+
+	/**
+	 * @param WP_Query $WP_Query
+	 * @return    void
+	 */
+	public function run($WP_Query)
+	{
+	}
+
+
+
+	/********************************** PRE_TICKET_SALES  **********************************/
+
+
+	/**
+	 * Retrieves grand totals from the line items that have no TXN ID
+	 * and timestamps less than the current time minus the session lifespan.
+	 * These are carts that have been abandoned before the "registrant" even attempted to checkout.
+	 * We're going to release the tickets for these line items before attempting to add more to the cart.
+	 *
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws UnexpectedEntityException
+	 */
+	public static function release_tickets_for_expired_carts()
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '()';
+		}
+		do_action('AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__begin');
+		$expired_ticket_IDs = array();
+		/** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
+		$session_lifespan = LoaderFactory::getLoader()->getShared(
+			'EventEspresso\core\domain\values\session\SessionLifespan'
+		);
+		$timestamp = $session_lifespan->expiration();
+		$expired_ticket_line_items = EEM_Line_Item::instance()->getTicketLineItemsForExpiredCarts($timestamp);
+		if (self::debug) {
+			echo self::$nl . ' . time(): ' . time();
+			echo self::$nl . ' . time() as date: ' . date('Y-m-d H:i a');
+			echo self::$nl . ' . session expiration: ' . $session_lifespan->expiration();
+			echo self::$nl . ' . session expiration as date: ' . date('Y-m-d H:i a', $session_lifespan->expiration());
+			echo self::$nl . ' . timestamp: ' . $timestamp;
+			echo self::$nl . ' . $expired_ticket_line_items: ' . count($expired_ticket_line_items);
+		}
+		if (! empty($expired_ticket_line_items)) {
+			foreach ($expired_ticket_line_items as $expired_ticket_line_item) {
+				if (! $expired_ticket_line_item instanceof EE_Line_Item) {
+					continue;
+				}
+				$expired_ticket_IDs[ $expired_ticket_line_item->OBJ_ID() ] = $expired_ticket_line_item->OBJ_ID();
+				if (self::debug) {
+					echo self::$nl . ' . $expired_ticket_line_item->OBJ_ID(): ' . $expired_ticket_line_item->OBJ_ID();
+					echo self::$nl . ' . $expired_ticket_line_item->timestamp(): '
+						 . date(
+							 'Y-m-d h:i a',
+							 $expired_ticket_line_item->timestamp(true)
+						 );
+				}
+			}
+			if (! empty($expired_ticket_IDs)) {
+				EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
+					\EEM_Ticket::instance()->get_tickets_with_IDs($expired_ticket_IDs),
+					array(),
+					__FUNCTION__
+				);
+				// now  let's get rid of expired line items so that they can't interfere with tracking
+				EED_Ticket_Sales_Monitor::clear_expired_line_items_with_no_transaction($timestamp);
+			}
+		}
+		do_action(
+			'AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__end',
+			$expired_ticket_IDs,
+			$expired_ticket_line_items
+		);
+	}
+
+
+
+	/********************************** VALIDATE_TICKET_SALE  **********************************/
+
+
+	/**
+	 * callback for 'FHEE__EED_Ticket_Selector__process_ticket_selections__valid_post_data'
+	 *
+	 * @param int       $qty
+	 * @param EE_Ticket $ticket
+	 * @return bool
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	public static function validate_ticket_sale($qty = 1, EE_Ticket $ticket)
+	{
+		$qty = absint($qty);
+		if ($qty > 0) {
+			$qty = EED_Ticket_Sales_Monitor::instance()->_validate_ticket_sale($ticket, $qty);
+		}
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '()';
+			echo self::$nl . self::$nl . '<b> RETURNED QTY: ' . $qty . '</b>';
+		}
+		return $qty;
+	}
+
+
+	/**
+	 * checks whether an individual ticket is available for purchase based on datetime, and ticket details
+	 *
+	 * @param   EE_Ticket $ticket
+	 * @param int         $qty
+	 * @return int
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _validate_ticket_sale(EE_Ticket $ticket, $qty = 1)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		if (! $ticket instanceof EE_Ticket) {
+			return 0;
+		}
+		if (self::debug) {
+			echo self::$nl . '<b> . ticket->ID: ' . $ticket->ID() . '</b>';
+			echo self::$nl . ' . original ticket->reserved: ' . $ticket->reserved();
+		}
+		$ticket->refresh_from_db();
+		// first let's determine the ticket availability based on sales
+		$available = $ticket->qty('saleable');
+		if (self::debug) {
+			echo self::$nl . ' . . . ticket->qty: ' . $ticket->qty();
+			echo self::$nl . ' . . . ticket->sold: ' . $ticket->sold();
+			echo self::$nl . ' . . . ticket->reserved: ' . $ticket->reserved();
+			echo self::$nl . ' . . . ticket->qty(saleable): ' . $ticket->qty('saleable');
+			echo self::$nl . ' . . . available: ' . $available;
+		}
+		if ($available < 1) {
+			$this->_ticket_sold_out($ticket);
+			return 0;
+		}
+		if (self::debug) {
+			echo self::$nl . ' . . . qty: ' . $qty;
+		}
+		if ($available < $qty) {
+			$qty = $available;
+			if (self::debug) {
+				echo self::$nl . ' . . . QTY ADJUSTED: ' . $qty;
+			}
+			$this->_ticket_quantity_decremented($ticket);
+		}
+		if ($this->_reserve_ticket($ticket, $qty)) {
+			return $qty;
+		} else {
+			return 0;
+		}
+	}
+
+
+	/**
+	 * increments ticket reserved based on quantity passed
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @param int          $quantity
+	 * @return bool indicating success or failure
+	 * @throws EE_Error
+	 */
+	protected function _reserve_ticket(EE_Ticket $ticket, $quantity = 1)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . ' . . . INCREASE RESERVED: ' . $quantity;
+		}
+		return $ticket->increaseReserved($quantity, 'TicketSalesMonitor:' . __LINE__);
+	}
+
+
+	/**
+	 * @param  EE_Ticket $ticket
+	 * @param  int       $quantity
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
+	{
+		if (self::debug) {
+			echo self::$nl . ' . . . ticket->ID: ' . $ticket->ID();
+			echo self::$nl . ' . . . ticket->reserved before: ' . $ticket->reserved();
+		}
+		$ticket->decreaseReserved($quantity, true, 'TicketSalesMonitor:' . __LINE__);
+		if (self::debug) {
+			echo self::$nl . ' . . . ticket->reserved after: ' . $ticket->reserved();
+		}
+		return $ticket->save() ? 1 : 0;
+	}
+
+
+	/**
+	 * removes quantities within the ticket selector based on zero ticket availability
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @return    void
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _ticket_sold_out(EE_Ticket $ticket)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo self::$nl . ' . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+		}
+		$this->sold_out_tickets[] = $this->_get_ticket_and_event_name($ticket);
+	}
+
+
+	/**
+	 * adjusts quantities within the ticket selector based on decreased ticket availability
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @return void
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _ticket_quantity_decremented(EE_Ticket $ticket)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo self::$nl . ' . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+		}
+		$this->decremented_tickets[] = $this->_get_ticket_and_event_name($ticket);
+	}
+
+
+	/**
+	 * builds string out of ticket and event name
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @return string
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _get_ticket_and_event_name(EE_Ticket $ticket)
+	{
+		$event = $ticket->get_related_event();
+		if ($event instanceof EE_Event) {
+			$ticket_name = sprintf(
+				_x('%1$s for %2$s', 'ticket name for event name', 'event_espresso'),
+				$ticket->name(),
+				$event->name()
+			);
+		} else {
+			$ticket_name = $ticket->name();
+		}
+		return $ticket_name;
+	}
+
+
+
+	/********************************** EVENT CART  **********************************/
+
+
+	/**
+	 * releases or reserves ticket(s) based on quantity passed
+	 *
+	 * @param  EE_Line_Item $line_item
+	 * @param  int          $quantity
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function ticket_quantity_updated(EE_Line_Item $line_item, $quantity = 1)
+	{
+		$ticket = EEM_Ticket::instance()->get_one_by_ID(absint($line_item->OBJ_ID()));
+		if ($ticket instanceof EE_Ticket) {
+			$ticket->add_extra_meta(
+				EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+				__LINE__ . ') ' . __METHOD__ . '()'
+			);
+			if ($quantity > 0) {
+				EED_Ticket_Sales_Monitor::instance()->_reserve_ticket($ticket, $quantity);
+			} else {
+				EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
+			}
+		}
+	}
+
+
+	/**
+	 * releases reserved ticket(s) based on quantity passed
+	 *
+	 * @param  EE_Ticket $ticket
+	 * @param  int       $quantity
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public static function ticket_removed_from_cart(EE_Ticket $ticket, $quantity = 1)
+	{
+		$ticket->add_extra_meta(
+			EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+			__LINE__ . ') ' . __METHOD__ . '()'
+		);
+		EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
+	}
+
+
+
+	/********************************** POST_NOTICES  **********************************/
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function post_notices()
+	{
+		EED_Ticket_Sales_Monitor::instance()->_post_notices();
+	}
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _post_notices()
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		$refresh_msg = '';
+		$none_added_msg = '';
+		if (defined('DOING_AJAX') && DOING_AJAX) {
+			$refresh_msg = __(
+				'Please refresh the page to view updated ticket quantities.',
+				'event_espresso'
+			);
+			$none_added_msg = __('No tickets were added for the event.', 'event_espresso');
+		}
+		if (! empty($this->sold_out_tickets)) {
+			EE_Error::add_attention(
+				sprintf(
+					apply_filters(
+						'FHEE__EED_Ticket_Sales_Monitor___post_notices__sold_out_tickets_notice',
+						__(
+							'We\'re sorry...%1$sThe following items have sold out since you first viewed this page, and can no longer be registered for:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
+							'event_espresso'
+						)
+					),
+					'<br />',
+					implode('<br />', $this->sold_out_tickets),
+					$none_added_msg,
+					$refresh_msg
+				)
+			);
+			// alter code flow in the Ticket Selector for better UX
+			add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__tckts_slctd', '__return_true');
+			add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__success', '__return_false');
+			$this->sold_out_tickets = array();
+			// and reset the cart
+			EED_Ticket_Sales_Monitor::session_cart_reset(EE_Registry::instance()->SSN);
+		}
+		if (! empty($this->decremented_tickets)) {
+			EE_Error::add_attention(
+				sprintf(
+					apply_filters(
+						'FHEE__EED_Ticket_Sales_Monitor___ticket_quantity_decremented__notice',
+						__(
+							'We\'re sorry...%1$sDue to sales that have occurred since you first viewed the last page, the following items have had their quantities adjusted to match the current available amount:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
+							'event_espresso'
+						)
+					),
+					'<br />',
+					implode('<br />', $this->decremented_tickets),
+					$none_added_msg,
+					$refresh_msg
+				)
+			);
+			$this->decremented_tickets = array();
+		}
+	}
+
+
+
+	/********************************** RELEASE_ALL_RESERVED_TICKETS_FOR_TRANSACTION  **********************************/
+
+
+	/**
+	 * releases reserved tickets for all registrations of an EE_Transaction
+	 * by default, will NOT release tickets for finalized transactions
+	 *
+	 * @param    EE_Transaction $transaction
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	protected function _release_all_reserved_tickets_for_transaction(EE_Transaction $transaction)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo self::$nl . ' . transaction->ID: ' . $transaction->ID();
+			echo self::$nl . ' . TXN status_ID: ' . $transaction->status_ID();
+		}
+		// check if 'finalize_registration' step has been completed...
+		$finalized = $transaction->reg_step_completed('finalize_registration');
+		if (self::debug) {
+			// DEBUG LOG
+			EEH_Debug_Tools::log(
+				__CLASS__,
+				__FUNCTION__,
+				__LINE__,
+				array('finalized' => $finalized),
+				false,
+				'EE_Transaction: ' . $transaction->ID()
+			);
+		}
+		// how many tickets were released
+		$count = 0;
+		if (self::debug) {
+			echo self::$nl . ' . . . TXN finalized: ' . $finalized;
+		}
+		$release_tickets_with_TXN_status = array(
+			EEM_Transaction::failed_status_code,
+			EEM_Transaction::abandoned_status_code,
+			EEM_Transaction::incomplete_status_code,
+		);
+		$events = array();
+		// if the session is getting cleared BEFORE the TXN has been finalized or the transaction is not completed
+		if (! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
+			// cancel any reserved tickets for registrations that were not approved
+			$registrations = $transaction->registrations();
+			if (self::debug) {
+				echo self::$nl . ' . . . # registrations: ' . count($registrations);
+				$reg = reset($registrations);
+				$ticket = $reg->ticket();
+				if ($ticket instanceof EE_Ticket) {
+					$ticket->add_extra_meta(
+						EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+						__LINE__ . ') Release All Tickets TXN:' . $transaction->ID()
+					);
+				}
+			}
+			if (! empty($registrations)) {
+				foreach ($registrations as $registration) {
+					if ($registration instanceof EE_Registration
+						&& $this->_release_reserved_ticket_for_registration($registration, $transaction)
+					) {
+						$count++;
+						$events[ $registration->event_ID() ] = $registration->event();
+					}
+				}
+			}
+		}
+		if ($events !== array()) {
+			foreach ($events as $event) {
+				/** @var EE_Event $event */
+				$event->perform_sold_out_status_check();
+			}
+		}
+		return $count;
+	}
+
+
+	/**
+	 * releases reserved tickets for an EE_Registration
+	 * by default, will NOT release tickets for APPROVED registrations
+	 *
+	 * @param EE_Registration $registration
+	 * @param EE_Transaction  $transaction
+	 * @return int
+	 * @throws EE_Error
+	 */
+	protected function _release_reserved_ticket_for_registration(
+		EE_Registration $registration,
+		EE_Transaction $transaction
+	) {
+		$STS_ID = $transaction->status_ID();
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo self::$nl . ' . . registration->ID: ' . $registration->ID();
+			echo self::$nl . ' . . registration->status_ID: ' . $registration->status_ID();
+			echo self::$nl . ' . . transaction->status_ID(): ' . $STS_ID;
+		}
+		if (// release Tickets for Failed Transactions and Abandoned Transactions
+			$STS_ID === EEM_Transaction::failed_status_code
+			|| $STS_ID === EEM_Transaction::abandoned_status_code
+			|| (
+				// also release Tickets for Incomplete Transactions, but ONLY if the Registrations are NOT Approved
+				$STS_ID === EEM_Transaction::incomplete_status_code
+				&& $registration->status_ID() !== EEM_Registration::status_id_approved
+			)
+		) {
+			if (self::debug) {
+				echo self::$nl . self::$nl . ' . . RELEASE RESERVED TICKET';
+				$rsrvd = $registration->get_extra_meta(EE_Registration::HAS_RESERVED_TICKET_KEY, true);
+				echo self::$nl . ' . . . registration HAS_RESERVED_TICKET_KEY: ';
+				var_dump($rsrvd);
+			}
+			$registration->release_reserved_ticket(true, 'TicketSalesMonitor:' . __LINE__);
+			return 1;
+		}
+		return 0;
+	}
+
+
+
+	/********************************** SESSION_CART_RESET  **********************************/
+
+
+	/**
+	 * callback hooked into 'AHEE__EE_Session__reset_cart__before_reset'
+	 *
+	 * @param EE_Session $session
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function session_cart_reset(EE_Session $session)
+	{
+		// don't release tickets if checkout was already reset
+		if (did_action('AHEE__EE_Session__reset_checkout__before_reset')) {
+			return;
+		}
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		// first check of the session has a valid Checkout object
+		$checkout = $session->checkout();
+		if ($checkout instanceof EE_Checkout) {
+			// and use that to clear ticket reservations because it will update the associated registration meta data
+			EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
+			return;
+		}
+		$cart = $session->cart();
+		if ($cart instanceof EE_Cart) {
+			if (self::debug) {
+				echo self::$nl . self::$nl . ' cart instance of EE_Cart: ';
+			}
+			EED_Ticket_Sales_Monitor::instance()->_session_cart_reset($cart, $session);
+		} else {
+			if (self::debug) {
+				echo self::$nl . self::$nl . ' invalid EE_Cart: ';
+				var_export($cart, true);
+			}
+		}
+	}
+
+
+	/**
+	 * releases reserved tickets in the EE_Cart
+	 *
+	 * @param EE_Cart $cart
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _session_cart_reset(EE_Cart $cart, EE_Session $session)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		$ticket_line_items = $cart->get_tickets();
+		if (empty($ticket_line_items)) {
+			return;
+		}
+		if (self::debug) {
+			echo '<br /> . ticket_line_item count: ' . count($ticket_line_items);
+		}
+		foreach ($ticket_line_items as $ticket_line_item) {
+			if (self::debug) {
+				echo self::$nl . ' . ticket_line_item->ID(): ' . $ticket_line_item->ID();
+			}
+			if ($ticket_line_item instanceof EE_Line_Item && $ticket_line_item->OBJ_type() === 'Ticket') {
+				if (self::debug) {
+					echo self::$nl . ' . . ticket_line_item->OBJ_ID(): ' . $ticket_line_item->OBJ_ID();
+				}
+				$ticket = EEM_Ticket::instance()->get_one_by_ID($ticket_line_item->OBJ_ID());
+				if ($ticket instanceof EE_Ticket) {
+					if (self::debug) {
+						echo self::$nl . ' . . ticket->ID(): ' . $ticket->ID();
+						echo self::$nl . ' . . ticket_line_item->quantity(): ' . $ticket_line_item->quantity();
+					}
+					$ticket->add_extra_meta(
+						EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+						__LINE__ . ') ' . __METHOD__ . '() SID = ' . $session->id()
+					);
+					$this->_release_reserved_ticket($ticket, $ticket_line_item->quantity());
+				}
+			}
+		}
+		if (self::debug) {
+			echo self::$nl . self::$nl . ' RESET COMPLETED ';
+		}
+	}
+
+
+
+	/********************************** SESSION_CHECKOUT_RESET  **********************************/
+
+
+	/**
+	 * callback hooked into 'AHEE__EE_Session__reset_checkout__before_reset'
+	 *
+	 * @param EE_Session $session
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	public static function session_checkout_reset(EE_Session $session)
+	{
+		// don't release tickets if cart was already reset
+		if (did_action('AHEE__EE_Session__reset_cart__before_reset')) {
+			return;
+		}
+		$checkout = $session->checkout();
+		if ($checkout instanceof EE_Checkout) {
+			EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
+		}
+	}
+
+
+	/**
+	 * releases reserved tickets for the EE_Checkout->transaction
+	 *
+	 * @param EE_Checkout $checkout
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	protected function _session_checkout_reset(EE_Checkout $checkout)
+	{
+		if (self::debug) {
+			echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		// we want to release the each registration's reserved tickets if the session was cleared, but not if this is a revisit
+		if ($checkout->revisit || ! $checkout->transaction instanceof EE_Transaction) {
+			return;
+		}
+		$this->_release_all_reserved_tickets_for_transaction($checkout->transaction);
+	}
+
+
+
+	/********************************** SESSION_EXPIRED_RESET  **********************************/
+
+
+	/**
+	 * @param    EE_Session $session
+	 * @return    void
+	 */
+	public static function session_expired_reset(EE_Session $session)
+	{
+	}
+
+
+
+	/********************************** PROCESS_ABANDONED_TRANSACTIONS  **********************************/
+
+
+	/**
+	 * releases reserved tickets for all registrations of an ABANDONED EE_Transaction
+	 * by default, will NOT release tickets for free transactions, or any that have received a payment
+	 *
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	public static function process_abandoned_transactions(EE_Transaction $transaction)
+	{
+		// is this TXN free or has any money been paid towards this TXN? If so, then leave it alone
+		if ($transaction->is_free() || $transaction->paid() > 0) {
+			if (self::debug) {
+				// DEBUG LOG
+				EEH_Debug_Tools::log(
+					__CLASS__,
+					__FUNCTION__,
+					__LINE__,
+					array($transaction),
+					false,
+					'EE_Transaction: ' . $transaction->ID()
+				);
+			}
+			return;
+		}
+		// have their been any successful payments made ?
+		$payments = $transaction->payments();
+		foreach ($payments as $payment) {
+			if ($payment instanceof EE_Payment && $payment->status() === EEM_Payment::status_id_approved) {
+				if (self::debug) {
+					// DEBUG LOG
+					EEH_Debug_Tools::log(
+						__CLASS__,
+						__FUNCTION__,
+						__LINE__,
+						array($payment),
+						false,
+						'EE_Transaction: ' . $transaction->ID()
+					);
+				}
+				return;
+			}
+		}
+		// since you haven't even attempted to pay for your ticket...
+		EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
+	}
+
+
+
+	/********************************** PROCESS_FAILED_TRANSACTIONS  **********************************/
+
+
+	/**
+	 * releases reserved tickets for absolutely ALL registrations of a FAILED EE_Transaction
+	 *
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	public static function process_failed_transactions(EE_Transaction $transaction)
+	{
+		// since you haven't even attempted to pay for your ticket...
+		EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
+	}
+
+
+
+	/********************************** RESET RESERVATION COUNTS  *********************************/
+
+
+	/**
+	 * Resets the ticket and datetime reserved counts.
+	 *
+	 * For all the tickets with reservations, recalculates what their actual reserved counts should be based
+	 * on the valid transactions.
+	 *
+	 * @return int number of tickets whose reservations were released.
+	 * @throws EE_Error
+	 * @throws DomainException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 * @throws UnexpectedEntityException
+	 * @throws ReflectionException
+	 */
+	public static function reset_reservation_counts()
+	{
+		/** @var EE_Line_Item[] $valid_reserved_tickets */
+		$valid_reserved_tickets = array();
+		/** @var EE_Transaction[] $transactions_in_progress */
+		$transactions_in_progress = EEM_Transaction::instance()->get_transactions_in_progress();
+		foreach ($transactions_in_progress as $transaction) {
+			// if this TXN has been fully completed, then skip it
+			if ($transaction->reg_step_completed('finalize_registration')) {
+				continue;
+			}
+			$total_line_item = $transaction->total_line_item();
+			// $transaction_in_progress->line
+			if (! $total_line_item instanceof EE_Line_Item) {
+				throw new DomainException(
+					esc_html__(
+						'Transaction does not have a valid Total Line Item associated with it.',
+						'event_espresso'
+					)
+				);
+			}
+			$valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
+				$total_line_item
+			);
+		}
+		$total_line_items = EEM_Line_Item::instance()->get_total_line_items_for_active_carts();
+		foreach ($total_line_items as $total_line_item) {
+			$valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
+				$total_line_item
+			);
+		}
+		$tickets_with_reservations = EEM_Ticket::instance()->get_tickets_with_reservations();
+		return EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
+			$tickets_with_reservations,
+			$valid_reserved_tickets,
+			__FUNCTION__
+		);
+	}
+
+
+	/**
+	 * @param EE_Line_Item $total_line_item
+	 * @return EE_Line_Item[]
+	 */
+	private static function get_ticket_line_items_for_grand_total(EE_Line_Item $total_line_item)
+	{
+		/** @var EE_Line_Item[] $valid_reserved_tickets */
+		$valid_reserved_tickets = array();
+		$ticket_line_items = EEH_Line_Item::get_ticket_line_items($total_line_item);
+		foreach ($ticket_line_items as $ticket_line_item) {
+			if ($ticket_line_item instanceof EE_Line_Item) {
+				$valid_reserved_tickets[ $ticket_line_item->ID() ] = $ticket_line_item;
+			}
+		}
+		return $valid_reserved_tickets;
+	}
+
+
+	/**
+	 * Releases ticket and datetime reservations (ie, reduces the number of reserved spots on them).
+	 *
+	 * Given the list of tickets which have reserved spots on them, uses the complete list of line items for tickets
+	 * whose transactions aren't complete and also aren't yet expired (ie, they're incomplete and younger than the
+	 * session's expiry time) to update the ticket (and their datetimes') reserved counts.
+	 *
+	 * @param EE_Ticket[]    $tickets_with_reservations all tickets with TKT_reserved > 0
+	 * @param EE_Line_Item[] $valid_reserved_ticket_line_items all line items for tickets and incomplete transactions
+	 *                       whose session has NOT expired. We will use these to determine the number of ticket
+	 *                       reservations are now invalid. We don't use the list of invalid ticket line items because
+	 *                       we don't know which of those have already been taken into account when reducing ticket
+	 *                       reservation counts, and which haven't.
+	 * @return int
+	 * @throws UnexpectedEntityException
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	protected static function release_reservations_for_tickets(
+		array $tickets_with_reservations,
+		array $valid_reserved_ticket_line_items = array(),
+		$source
+	) {
+		$total_tickets_released = 0;
+		$sold_out_events = array();
+		foreach ($tickets_with_reservations as $ticket_with_reservations) {
+			if (! $ticket_with_reservations instanceof EE_Ticket) {
+				continue;
+			}
+			// The $valid_reserved_ticket_line_items tells us what the reserved count on their tickets (and datetimes)
+			// SHOULD be. Instead of just directly updating the list, we're going to use EE_Ticket::decreaseReserved()
+			// to try to avoid race conditions, so instead of just finding the number to update TO, we're going to find
+			// the number to RELEASE. It's the same end result, just different path.
+			// Begin by assuming we're going to release all the reservations on this ticket.
+			$expired_reservations_count = $ticket_with_reservations->reserved();
+			// Now reduce that number using the list of current valid reservations.
+			foreach ($valid_reserved_ticket_line_items as $valid_reserved_ticket_line_item) {
+				if ($valid_reserved_ticket_line_item instanceof EE_Line_Item
+					&& $valid_reserved_ticket_line_item->OBJ_ID() === $ticket_with_reservations->ID()
+				) {
+					$expired_reservations_count -= $valid_reserved_ticket_line_item->quantity();
+				}
+			}
+			// Only bother saving the tickets and datetimes if we're actually going to release some spots.
+			if ($expired_reservations_count > 0) {
+				$ticket_with_reservations->add_extra_meta(
+					EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+					__LINE__ . ') ' . $source . '()'
+				);
+				$ticket_with_reservations->decreaseReserved($expired_reservations_count, true, 'TicketSalesMonitor:' . __LINE__);
+				$total_tickets_released += $expired_reservations_count;
+				$event = $ticket_with_reservations->get_related_event();
+				// track sold out events
+				if ($event instanceof EE_Event && $event->is_sold_out()) {
+					$sold_out_events[] = $event;
+				}
+			}
+		}
+		// Double check whether sold out events should remain sold out after releasing tickets
+		if ($sold_out_events !== array()) {
+			foreach ($sold_out_events as $sold_out_event) {
+				/** @var EE_Event $sold_out_event */
+				$sold_out_event->perform_sold_out_status_check();
+			}
+		}
+		return $total_tickets_released;
+	}
+
+
+
+	/********************************** SHUTDOWN  **********************************/
+
+
+	/**
+	 * @param int $timestamp
+	 * @return false|int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function clear_expired_line_items_with_no_transaction($timestamp = 0)
+	{
+		/** @type WPDB $wpdb */
+		global $wpdb;
+		if (! absint($timestamp)) {
+			/** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
+			$session_lifespan = LoaderFactory::getLoader()->getShared(
+				'EventEspresso\core\domain\values\session\SessionLifespan'
+			);
+			$timestamp = $session_lifespan->expiration();
+		}
+		return $wpdb->query(
+			$wpdb->prepare(
+				'DELETE FROM ' . EEM_Line_Item::instance()->table() . '
                 WHERE TXN_ID = 0 AND LIN_timestamp <= %s',
-                // use GMT time because that's what LIN_timestamps are in
-                date('Y-m-d H:i:s', $timestamp)
-            )
-        );
-    }
+				// use GMT time because that's what LIN_timestamps are in
+				date('Y-m-d H:i:s', $timestamp)
+			)
+		);
+	}
 }

Spacing +79 added lines, -79 removed lines

@@ -182,7 +182,7 @@ 
     public static function release_tickets_for_expired_carts()
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '()';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'()';
         }
         do_action('AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__begin');
         $expired_ticket_IDs = array();
@@ -193,29 +193,29 @@ 
         $timestamp = $session_lifespan->expiration();
         $expired_ticket_line_items = EEM_Line_Item::instance()->getTicketLineItemsForExpiredCarts($timestamp);
         if (self::debug) {
-            echo self::$nl . ' . time(): ' . time();
-            echo self::$nl . ' . time() as date: ' . date('Y-m-d H:i a');
-            echo self::$nl . ' . session expiration: ' . $session_lifespan->expiration();
-            echo self::$nl . ' . session expiration as date: ' . date('Y-m-d H:i a', $session_lifespan->expiration());
-            echo self::$nl . ' . timestamp: ' . $timestamp;
-            echo self::$nl . ' . $expired_ticket_line_items: ' . count($expired_ticket_line_items);
+            echo self::$nl.' . time(): '.time();
+            echo self::$nl.' . time() as date: '.date('Y-m-d H:i a');
+            echo self::$nl.' . session expiration: '.$session_lifespan->expiration();
+            echo self::$nl.' . session expiration as date: '.date('Y-m-d H:i a', $session_lifespan->expiration());
+            echo self::$nl.' . timestamp: '.$timestamp;
+            echo self::$nl.' . $expired_ticket_line_items: '.count($expired_ticket_line_items);
         }
-        if (! empty($expired_ticket_line_items)) {
+        if ( ! empty($expired_ticket_line_items)) {
             foreach ($expired_ticket_line_items as $expired_ticket_line_item) {
-                if (! $expired_ticket_line_item instanceof EE_Line_Item) {
+                if ( ! $expired_ticket_line_item instanceof EE_Line_Item) {
                     continue;
                 }
-                $expired_ticket_IDs[ $expired_ticket_line_item->OBJ_ID() ] = $expired_ticket_line_item->OBJ_ID();
+                $expired_ticket_IDs[$expired_ticket_line_item->OBJ_ID()] = $expired_ticket_line_item->OBJ_ID();
                 if (self::debug) {
-                    echo self::$nl . ' . $expired_ticket_line_item->OBJ_ID(): ' . $expired_ticket_line_item->OBJ_ID();
-                    echo self::$nl . ' . $expired_ticket_line_item->timestamp(): '
+                    echo self::$nl.' . $expired_ticket_line_item->OBJ_ID(): '.$expired_ticket_line_item->OBJ_ID();
+                    echo self::$nl.' . $expired_ticket_line_item->timestamp(): '
                          . date(
                              'Y-m-d h:i a',
                              $expired_ticket_line_item->timestamp(true)
                          );
                 }
             }
-            if (! empty($expired_ticket_IDs)) {
+            if ( ! empty($expired_ticket_IDs)) {
                 EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
                     \EEM_Ticket::instance()->get_tickets_with_IDs($expired_ticket_IDs),
                     array(),
@@ -253,8 +253,8 @@ 
             $qty = EED_Ticket_Sales_Monitor::instance()->_validate_ticket_sale($ticket, $qty);
         }
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '()';
-            echo self::$nl . self::$nl . '<b> RETURNED QTY: ' . $qty . '</b>';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'()';
+            echo self::$nl.self::$nl.'<b> RETURNED QTY: '.$qty.'</b>';
         }
         return $qty;
     }
@@ -272,36 +272,36 @@ 
     protected function _validate_ticket_sale(EE_Ticket $ticket, $qty = 1)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
         }
-        if (! $ticket instanceof EE_Ticket) {
+        if ( ! $ticket instanceof EE_Ticket) {
             return 0;
         }
         if (self::debug) {
-            echo self::$nl . '<b> . ticket->ID: ' . $ticket->ID() . '</b>';
-            echo self::$nl . ' . original ticket->reserved: ' . $ticket->reserved();
+            echo self::$nl.'<b> . ticket->ID: '.$ticket->ID().'</b>';
+            echo self::$nl.' . original ticket->reserved: '.$ticket->reserved();
         }
         $ticket->refresh_from_db();
         // first let's determine the ticket availability based on sales
         $available = $ticket->qty('saleable');
         if (self::debug) {
-            echo self::$nl . ' . . . ticket->qty: ' . $ticket->qty();
-            echo self::$nl . ' . . . ticket->sold: ' . $ticket->sold();
-            echo self::$nl . ' . . . ticket->reserved: ' . $ticket->reserved();
-            echo self::$nl . ' . . . ticket->qty(saleable): ' . $ticket->qty('saleable');
-            echo self::$nl . ' . . . available: ' . $available;
+            echo self::$nl.' . . . ticket->qty: '.$ticket->qty();
+            echo self::$nl.' . . . ticket->sold: '.$ticket->sold();
+            echo self::$nl.' . . . ticket->reserved: '.$ticket->reserved();
+            echo self::$nl.' . . . ticket->qty(saleable): '.$ticket->qty('saleable');
+            echo self::$nl.' . . . available: '.$available;
         }
         if ($available < 1) {
             $this->_ticket_sold_out($ticket);
             return 0;
         }
         if (self::debug) {
-            echo self::$nl . ' . . . qty: ' . $qty;
+            echo self::$nl.' . . . qty: '.$qty;
         }
         if ($available < $qty) {
             $qty = $available;
             if (self::debug) {
-                echo self::$nl . ' . . . QTY ADJUSTED: ' . $qty;
+                echo self::$nl.' . . . QTY ADJUSTED: '.$qty;
             }
             $this->_ticket_quantity_decremented($ticket);
         }
@@ -324,9 +324,9 @@ 
     protected function _reserve_ticket(EE_Ticket $ticket, $quantity = 1)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . ' . . . INCREASE RESERVED: ' . $quantity;
+            echo self::$nl.self::$nl.' . . . INCREASE RESERVED: '.$quantity;
         }
-        return $ticket->increaseReserved($quantity, 'TicketSalesMonitor:' . __LINE__);
+        return $ticket->increaseReserved($quantity, 'TicketSalesMonitor:'.__LINE__);
     }
 
 
@@ -339,12 +339,12 @@ 
     protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
     {
         if (self::debug) {
-            echo self::$nl . ' . . . ticket->ID: ' . $ticket->ID();
-            echo self::$nl . ' . . . ticket->reserved before: ' . $ticket->reserved();
+            echo self::$nl.' . . . ticket->ID: '.$ticket->ID();
+            echo self::$nl.' . . . ticket->reserved before: '.$ticket->reserved();
         }
-        $ticket->decreaseReserved($quantity, true, 'TicketSalesMonitor:' . __LINE__);
+        $ticket->decreaseReserved($quantity, true, 'TicketSalesMonitor:'.__LINE__);
         if (self::debug) {
-            echo self::$nl . ' . . . ticket->reserved after: ' . $ticket->reserved();
+            echo self::$nl.' . . . ticket->reserved after: '.$ticket->reserved();
         }
         return $ticket->save() ? 1 : 0;
     }
@@ -361,8 +361,8 @@ 
     protected function _ticket_sold_out(EE_Ticket $ticket)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
+            echo self::$nl.' . . ticket->name: '.$this->_get_ticket_and_event_name($ticket);
         }
         $this->sold_out_tickets[] = $this->_get_ticket_and_event_name($ticket);
     }
@@ -379,8 +379,8 @@ 
     protected function _ticket_quantity_decremented(EE_Ticket $ticket)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
+            echo self::$nl.' . . ticket->name: '.$this->_get_ticket_and_event_name($ticket);
         }
         $this->decremented_tickets[] = $this->_get_ticket_and_event_name($ticket);
     }
@@ -431,7 +431,7 @@ 
         if ($ticket instanceof EE_Ticket) {
             $ticket->add_extra_meta(
                 EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                __LINE__ . ') ' . __METHOD__ . '()'
+                __LINE__.') '.__METHOD__.'()'
             );
             if ($quantity > 0) {
                 EED_Ticket_Sales_Monitor::instance()->_reserve_ticket($ticket, $quantity);
@@ -454,7 +454,7 @@ 
     {
         $ticket->add_extra_meta(
             EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-            __LINE__ . ') ' . __METHOD__ . '()'
+            __LINE__.') '.__METHOD__.'()'
         );
         EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
     }
@@ -489,7 +489,7 @@ 
     protected function _post_notices()
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
         }
         $refresh_msg = '';
         $none_added_msg = '';
@@ -500,7 +500,7 @@ 
             );
             $none_added_msg = __('No tickets were added for the event.', 'event_espresso');
         }
-        if (! empty($this->sold_out_tickets)) {
+        if ( ! empty($this->sold_out_tickets)) {
             EE_Error::add_attention(
                 sprintf(
                     apply_filters(
@@ -523,7 +523,7 @@ 
             // and reset the cart
             EED_Ticket_Sales_Monitor::session_cart_reset(EE_Registry::instance()->SSN);
         }
-        if (! empty($this->decremented_tickets)) {
+        if ( ! empty($this->decremented_tickets)) {
             EE_Error::add_attention(
                 sprintf(
                     apply_filters(
@@ -560,9 +560,9 @@ 
     protected function _release_all_reserved_tickets_for_transaction(EE_Transaction $transaction)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . transaction->ID: ' . $transaction->ID();
-            echo self::$nl . ' . TXN status_ID: ' . $transaction->status_ID();
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
+            echo self::$nl.' . transaction->ID: '.$transaction->ID();
+            echo self::$nl.' . TXN status_ID: '.$transaction->status_ID();
         }
         // check if 'finalize_registration' step has been completed...
         $finalized = $transaction->reg_step_completed('finalize_registration');
@@ -574,13 +574,13 @@ 
                 __LINE__,
                 array('finalized' => $finalized),
                 false,
-                'EE_Transaction: ' . $transaction->ID()
+                'EE_Transaction: '.$transaction->ID()
             );
         }
         // how many tickets were released
         $count = 0;
         if (self::debug) {
-            echo self::$nl . ' . . . TXN finalized: ' . $finalized;
+            echo self::$nl.' . . . TXN finalized: '.$finalized;
         }
         $release_tickets_with_TXN_status = array(
             EEM_Transaction::failed_status_code,
@@ -589,27 +589,27 @@ 
         );
         $events = array();
         // if the session is getting cleared BEFORE the TXN has been finalized or the transaction is not completed
-        if (! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
+        if ( ! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
             // cancel any reserved tickets for registrations that were not approved
             $registrations = $transaction->registrations();
             if (self::debug) {
-                echo self::$nl . ' . . . # registrations: ' . count($registrations);
+                echo self::$nl.' . . . # registrations: '.count($registrations);
                 $reg = reset($registrations);
                 $ticket = $reg->ticket();
                 if ($ticket instanceof EE_Ticket) {
                     $ticket->add_extra_meta(
                         EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') Release All Tickets TXN:' . $transaction->ID()
+                        __LINE__.') Release All Tickets TXN:'.$transaction->ID()
                     );
                 }
             }
-            if (! empty($registrations)) {
+            if ( ! empty($registrations)) {
                 foreach ($registrations as $registration) {
                     if ($registration instanceof EE_Registration
                         && $this->_release_reserved_ticket_for_registration($registration, $transaction)
                     ) {
                         $count++;
-                        $events[ $registration->event_ID() ] = $registration->event();
+                        $events[$registration->event_ID()] = $registration->event();
                     }
                 }
             }
@@ -639,10 +639,10 @@ 
     ) {
         $STS_ID = $transaction->status_ID();
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo self::$nl . ' . . registration->ID: ' . $registration->ID();
-            echo self::$nl . ' . . registration->status_ID: ' . $registration->status_ID();
-            echo self::$nl . ' . . transaction->status_ID(): ' . $STS_ID;
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
+            echo self::$nl.' . . registration->ID: '.$registration->ID();
+            echo self::$nl.' . . registration->status_ID: '.$registration->status_ID();
+            echo self::$nl.' . . transaction->status_ID(): '.$STS_ID;
         }
         if (// release Tickets for Failed Transactions and Abandoned Transactions
             $STS_ID === EEM_Transaction::failed_status_code
@@ -654,12 +654,12 @@ 
             )
         ) {
             if (self::debug) {
-                echo self::$nl . self::$nl . ' . . RELEASE RESERVED TICKET';
+                echo self::$nl.self::$nl.' . . RELEASE RESERVED TICKET';
                 $rsrvd = $registration->get_extra_meta(EE_Registration::HAS_RESERVED_TICKET_KEY, true);
-                echo self::$nl . ' . . . registration HAS_RESERVED_TICKET_KEY: ';
+                echo self::$nl.' . . . registration HAS_RESERVED_TICKET_KEY: ';
                 var_dump($rsrvd);
             }
-            $registration->release_reserved_ticket(true, 'TicketSalesMonitor:' . __LINE__);
+            $registration->release_reserved_ticket(true, 'TicketSalesMonitor:'.__LINE__);
             return 1;
         }
         return 0;
@@ -688,7 +688,7 @@ 
             return;
         }
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
         }
         // first check of the session has a valid Checkout object
         $checkout = $session->checkout();
@@ -700,12 +700,12 @@ 
         $cart = $session->cart();
         if ($cart instanceof EE_Cart) {
             if (self::debug) {
-                echo self::$nl . self::$nl . ' cart instance of EE_Cart: ';
+                echo self::$nl.self::$nl.' cart instance of EE_Cart: ';
             }
             EED_Ticket_Sales_Monitor::instance()->_session_cart_reset($cart, $session);
         } else {
             if (self::debug) {
-                echo self::$nl . self::$nl . ' invalid EE_Cart: ';
+                echo self::$nl.self::$nl.' invalid EE_Cart: ';
                 var_export($cart, true);
             }
         }
@@ -726,39 +726,39 @@ 
     protected function _session_cart_reset(EE_Cart $cart, EE_Session $session)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
         }
         $ticket_line_items = $cart->get_tickets();
         if (empty($ticket_line_items)) {
             return;
         }
         if (self::debug) {
-            echo '<br /> . ticket_line_item count: ' . count($ticket_line_items);
+            echo '<br /> . ticket_line_item count: '.count($ticket_line_items);
         }
         foreach ($ticket_line_items as $ticket_line_item) {
             if (self::debug) {
-                echo self::$nl . ' . ticket_line_item->ID(): ' . $ticket_line_item->ID();
+                echo self::$nl.' . ticket_line_item->ID(): '.$ticket_line_item->ID();
             }
             if ($ticket_line_item instanceof EE_Line_Item && $ticket_line_item->OBJ_type() === 'Ticket') {
                 if (self::debug) {
-                    echo self::$nl . ' . . ticket_line_item->OBJ_ID(): ' . $ticket_line_item->OBJ_ID();
+                    echo self::$nl.' . . ticket_line_item->OBJ_ID(): '.$ticket_line_item->OBJ_ID();
                 }
                 $ticket = EEM_Ticket::instance()->get_one_by_ID($ticket_line_item->OBJ_ID());
                 if ($ticket instanceof EE_Ticket) {
                     if (self::debug) {
-                        echo self::$nl . ' . . ticket->ID(): ' . $ticket->ID();
-                        echo self::$nl . ' . . ticket_line_item->quantity(): ' . $ticket_line_item->quantity();
+                        echo self::$nl.' . . ticket->ID(): '.$ticket->ID();
+                        echo self::$nl.' . . ticket_line_item->quantity(): '.$ticket_line_item->quantity();
                     }
                     $ticket->add_extra_meta(
                         EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') ' . __METHOD__ . '() SID = ' . $session->id()
+                        __LINE__.') '.__METHOD__.'() SID = '.$session->id()
                     );
                     $this->_release_reserved_ticket($ticket, $ticket_line_item->quantity());
                 }
             }
         }
         if (self::debug) {
-            echo self::$nl . self::$nl . ' RESET COMPLETED ';
+            echo self::$nl.self::$nl.' RESET COMPLETED ';
         }
     }
 
@@ -799,7 +799,7 @@ 
     protected function _session_checkout_reset(EE_Checkout $checkout)
     {
         if (self::debug) {
-            echo self::$nl . self::$nl . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo self::$nl.self::$nl.__LINE__.') '.__METHOD__.'() ';
         }
         // we want to release the each registration's reserved tickets if the session was cleared, but not if this is a revisit
         if ($checkout->revisit || ! $checkout->transaction instanceof EE_Transaction) {
@@ -847,7 +847,7 @@ 
                     __LINE__,
                     array($transaction),
                     false,
-                    'EE_Transaction: ' . $transaction->ID()
+                    'EE_Transaction: '.$transaction->ID()
                 );
             }
             return;
@@ -864,7 +864,7 @@ 
                         __LINE__,
                         array($payment),
                         false,
-                        'EE_Transaction: ' . $transaction->ID()
+                        'EE_Transaction: '.$transaction->ID()
                     );
                 }
                 return;
@@ -926,7 +926,7 @@ 
             }
             $total_line_item = $transaction->total_line_item();
             // $transaction_in_progress->line
-            if (! $total_line_item instanceof EE_Line_Item) {
+            if ( ! $total_line_item instanceof EE_Line_Item) {
                 throw new DomainException(
                     esc_html__(
                         'Transaction does not have a valid Total Line Item associated with it.',
@@ -964,7 +964,7 @@ 
         $ticket_line_items = EEH_Line_Item::get_ticket_line_items($total_line_item);
         foreach ($ticket_line_items as $ticket_line_item) {
             if ($ticket_line_item instanceof EE_Line_Item) {
-                $valid_reserved_tickets[ $ticket_line_item->ID() ] = $ticket_line_item;
+                $valid_reserved_tickets[$ticket_line_item->ID()] = $ticket_line_item;
             }
         }
         return $valid_reserved_tickets;
@@ -997,7 +997,7 @@ 
         $total_tickets_released = 0;
         $sold_out_events = array();
         foreach ($tickets_with_reservations as $ticket_with_reservations) {
-            if (! $ticket_with_reservations instanceof EE_Ticket) {
+            if ( ! $ticket_with_reservations instanceof EE_Ticket) {
                 continue;
             }
             // The $valid_reserved_ticket_line_items tells us what the reserved count on their tickets (and datetimes)
@@ -1018,9 +1018,9 @@ 
             if ($expired_reservations_count > 0) {
                 $ticket_with_reservations->add_extra_meta(
                     EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                    __LINE__ . ') ' . $source . '()'
+                    __LINE__.') '.$source.'()'
                 );
-                $ticket_with_reservations->decreaseReserved($expired_reservations_count, true, 'TicketSalesMonitor:' . __LINE__);
+                $ticket_with_reservations->decreaseReserved($expired_reservations_count, true, 'TicketSalesMonitor:'.__LINE__);
                 $total_tickets_released += $expired_reservations_count;
                 $event = $ticket_with_reservations->get_related_event();
                 // track sold out events
@@ -1056,7 +1056,7 @@ 
     {
         /** @type WPDB $wpdb */
         global $wpdb;
-        if (! absint($timestamp)) {
+        if ( ! absint($timestamp)) {
             /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
             $session_lifespan = LoaderFactory::getLoader()->getShared(
                 'EventEspresso\core\domain\values\session\SessionLifespan'
@@ -1065,7 +1065,7 @@ 
         }
         return $wpdb->query(
             $wpdb->prepare(
-                'DELETE FROM ' . EEM_Line_Item::instance()->table() . '
+                'DELETE FROM '.EEM_Line_Item::instance()->table().'
                 WHERE TXN_ID = 0 AND LIN_timestamp <= %s',
                 // use GMT time because that's what LIN_timestamps are in
                 date('Y-m-d H:i:s', $timestamp)

caffeinated/admin/extend/registrations/Extend_Registrations_Admin_Page.core.php

Indentation +1210 added lines, -1210 removed lines

@@ -16,1267 +16,1267 @@
 {
 
 
-    /**
-     * This is used to hold the reports template data which is setup early in the request.
-     *
-     * @type array
-     */
-    protected $_reports_template_data = array();
+	/**
+	 * This is used to hold the reports template data which is setup early in the request.
+	 *
+	 * @type array
+	 */
+	protected $_reports_template_data = array();
 
 
-    /**
-     * Extend_Registrations_Admin_Page constructor.
-     *
-     * @param bool $routing
-     */
-    public function __construct($routing = true)
-    {
-        parent::__construct($routing);
-        if (! defined('REG_CAF_TEMPLATE_PATH')) {
-            define('REG_CAF_TEMPLATE_PATH', EE_CORE_CAF_ADMIN_EXTEND . 'registrations/templates/');
-            define('REG_CAF_ASSETS', EE_CORE_CAF_ADMIN_EXTEND . 'registrations/assets/');
-            define('REG_CAF_ASSETS_URL', EE_CORE_CAF_ADMIN_EXTEND_URL . 'registrations/assets/');
-        }
-    }
+	/**
+	 * Extend_Registrations_Admin_Page constructor.
+	 *
+	 * @param bool $routing
+	 */
+	public function __construct($routing = true)
+	{
+		parent::__construct($routing);
+		if (! defined('REG_CAF_TEMPLATE_PATH')) {
+			define('REG_CAF_TEMPLATE_PATH', EE_CORE_CAF_ADMIN_EXTEND . 'registrations/templates/');
+			define('REG_CAF_ASSETS', EE_CORE_CAF_ADMIN_EXTEND . 'registrations/assets/');
+			define('REG_CAF_ASSETS_URL', EE_CORE_CAF_ADMIN_EXTEND_URL . 'registrations/assets/');
+		}
+	}
 
 
-    /**
-     * Extending page configuration.
-     */
-    protected function _extend_page_config()
-    {
-        $this->_admin_base_path = EE_CORE_CAF_ADMIN_EXTEND . 'registrations';
-        $reg_id = ! empty($this->_req_data['_REG_ID']) && ! is_array($this->_req_data['_REG_ID'])
-            ? $this->_req_data['_REG_ID']
-            : 0;
-        $new_page_routes = array(
-            'reports'                      => array(
-                'func'       => '_registration_reports',
-                'capability' => 'ee_read_registrations',
-            ),
-            'registration_checkins'        => array(
-                'func'       => '_registration_checkin_list_table',
-                'capability' => 'ee_read_checkins',
-            ),
-            'newsletter_selected_send'     => array(
-                'func'       => '_newsletter_selected_send',
-                'noheader'   => true,
-                'capability' => 'ee_send_message',
-            ),
-            'delete_checkin_rows'          => array(
-                'func'       => '_delete_checkin_rows',
-                'noheader'   => true,
-                'capability' => 'ee_delete_checkins',
-            ),
-            'delete_checkin_row'           => array(
-                'func'       => '_delete_checkin_row',
-                'noheader'   => true,
-                'capability' => 'ee_delete_checkin',
-                'obj_id'     => $reg_id,
-            ),
-            'toggle_checkin_status'        => array(
-                'func'       => '_toggle_checkin_status',
-                'noheader'   => true,
-                'capability' => 'ee_edit_checkin',
-                'obj_id'     => $reg_id,
-            ),
-            'toggle_checkin_status_bulk'   => array(
-                'func'       => '_toggle_checkin_status',
-                'noheader'   => true,
-                'capability' => 'ee_edit_checkins',
-            ),
-            'event_registrations'          => array(
-                'func'       => '_event_registrations_list_table',
-                'capability' => 'ee_read_checkins',
-            ),
-            'registrations_checkin_report' => array(
-                'func'       => '_registrations_checkin_report',
-                'noheader'   => true,
-                'capability' => 'ee_read_registrations',
-            ),
-        );
-        $this->_page_routes = array_merge($this->_page_routes, $new_page_routes);
-        $new_page_config = array(
-            'reports'               => array(
-                'nav'           => array(
-                    'label' => esc_html__('Reports', 'event_espresso'),
-                    'order' => 30,
-                ),
-                'help_tabs'     => array(
-                    'registrations_reports_help_tab' => array(
-                        'title'    => esc_html__('Registration Reports', 'event_espresso'),
-                        'filename' => 'registrations_reports',
-                    ),
-                ),
-                /*'help_tour' => array( 'Registration_Reports_Help_Tour' ),*/
-                'require_nonce' => false,
-            ),
-            'event_registrations'   => array(
-                'nav'           => array(
-                    'label'      => esc_html__('Event Check-In', 'event_espresso'),
-                    'order'      => 10,
-                    'persistent' => true,
-                ),
-                'help_tabs'     => array(
-                    'registrations_event_checkin_help_tab'                       => array(
-                        'title'    => esc_html__('Registrations Event Check-In', 'event_espresso'),
-                        'filename' => 'registrations_event_checkin',
-                    ),
-                    'registrations_event_checkin_table_column_headings_help_tab' => array(
-                        'title'    => esc_html__('Event Check-In Table Column Headings', 'event_espresso'),
-                        'filename' => 'registrations_event_checkin_table_column_headings',
-                    ),
-                    'registrations_event_checkin_filters_help_tab'               => array(
-                        'title'    => esc_html__('Event Check-In Filters', 'event_espresso'),
-                        'filename' => 'registrations_event_checkin_filters',
-                    ),
-                    'registrations_event_checkin_views_help_tab'                 => array(
-                        'title'    => esc_html__('Event Check-In Views', 'event_espresso'),
-                        'filename' => 'registrations_event_checkin_views',
-                    ),
-                    'registrations_event_checkin_other_help_tab'                 => array(
-                        'title'    => esc_html__('Event Check-In Other', 'event_espresso'),
-                        'filename' => 'registrations_event_checkin_other',
-                    ),
-                ),
-                'help_tour'     => array('Event_Checkin_Help_Tour'),
-                'qtips'         => array('Registration_List_Table_Tips'),
-                'list_table'    => 'EE_Event_Registrations_List_Table',
-                'metaboxes'     => array(),
-                'require_nonce' => false,
-            ),
-            'registration_checkins' => array(
-                'nav'           => array(
-                    'label'      => esc_html__('Check-In Records', 'event_espresso'),
-                    'order'      => 15,
-                    'persistent' => false,
-                    'url'        => '',
-                ),
-                'list_table'    => 'EE_Registration_CheckIn_List_Table',
-                // 'help_tour' => array( 'Checkin_Toggle_View_Help_Tour' ),
-                'metaboxes'     => array(),
-                'require_nonce' => false,
-            ),
-        );
-        $this->_page_config = array_merge($this->_page_config, $new_page_config);
-        $this->_page_config['contact_list']['list_table'] = 'Extend_EE_Attendee_Contact_List_Table';
-        $this->_page_config['default']['list_table'] = 'Extend_EE_Registrations_List_Table';
-    }
+	/**
+	 * Extending page configuration.
+	 */
+	protected function _extend_page_config()
+	{
+		$this->_admin_base_path = EE_CORE_CAF_ADMIN_EXTEND . 'registrations';
+		$reg_id = ! empty($this->_req_data['_REG_ID']) && ! is_array($this->_req_data['_REG_ID'])
+			? $this->_req_data['_REG_ID']
+			: 0;
+		$new_page_routes = array(
+			'reports'                      => array(
+				'func'       => '_registration_reports',
+				'capability' => 'ee_read_registrations',
+			),
+			'registration_checkins'        => array(
+				'func'       => '_registration_checkin_list_table',
+				'capability' => 'ee_read_checkins',
+			),
+			'newsletter_selected_send'     => array(
+				'func'       => '_newsletter_selected_send',
+				'noheader'   => true,
+				'capability' => 'ee_send_message',
+			),
+			'delete_checkin_rows'          => array(
+				'func'       => '_delete_checkin_rows',
+				'noheader'   => true,
+				'capability' => 'ee_delete_checkins',
+			),
+			'delete_checkin_row'           => array(
+				'func'       => '_delete_checkin_row',
+				'noheader'   => true,
+				'capability' => 'ee_delete_checkin',
+				'obj_id'     => $reg_id,
+			),
+			'toggle_checkin_status'        => array(
+				'func'       => '_toggle_checkin_status',
+				'noheader'   => true,
+				'capability' => 'ee_edit_checkin',
+				'obj_id'     => $reg_id,
+			),
+			'toggle_checkin_status_bulk'   => array(
+				'func'       => '_toggle_checkin_status',
+				'noheader'   => true,
+				'capability' => 'ee_edit_checkins',
+			),
+			'event_registrations'          => array(
+				'func'       => '_event_registrations_list_table',
+				'capability' => 'ee_read_checkins',
+			),
+			'registrations_checkin_report' => array(
+				'func'       => '_registrations_checkin_report',
+				'noheader'   => true,
+				'capability' => 'ee_read_registrations',
+			),
+		);
+		$this->_page_routes = array_merge($this->_page_routes, $new_page_routes);
+		$new_page_config = array(
+			'reports'               => array(
+				'nav'           => array(
+					'label' => esc_html__('Reports', 'event_espresso'),
+					'order' => 30,
+				),
+				'help_tabs'     => array(
+					'registrations_reports_help_tab' => array(
+						'title'    => esc_html__('Registration Reports', 'event_espresso'),
+						'filename' => 'registrations_reports',
+					),
+				),
+				/*'help_tour' => array( 'Registration_Reports_Help_Tour' ),*/
+				'require_nonce' => false,
+			),
+			'event_registrations'   => array(
+				'nav'           => array(
+					'label'      => esc_html__('Event Check-In', 'event_espresso'),
+					'order'      => 10,
+					'persistent' => true,
+				),
+				'help_tabs'     => array(
+					'registrations_event_checkin_help_tab'                       => array(
+						'title'    => esc_html__('Registrations Event Check-In', 'event_espresso'),
+						'filename' => 'registrations_event_checkin',
+					),
+					'registrations_event_checkin_table_column_headings_help_tab' => array(
+						'title'    => esc_html__('Event Check-In Table Column Headings', 'event_espresso'),
+						'filename' => 'registrations_event_checkin_table_column_headings',
+					),
+					'registrations_event_checkin_filters_help_tab'               => array(
+						'title'    => esc_html__('Event Check-In Filters', 'event_espresso'),
+						'filename' => 'registrations_event_checkin_filters',
+					),
+					'registrations_event_checkin_views_help_tab'                 => array(
+						'title'    => esc_html__('Event Check-In Views', 'event_espresso'),
+						'filename' => 'registrations_event_checkin_views',
+					),
+					'registrations_event_checkin_other_help_tab'                 => array(
+						'title'    => esc_html__('Event Check-In Other', 'event_espresso'),
+						'filename' => 'registrations_event_checkin_other',
+					),
+				),
+				'help_tour'     => array('Event_Checkin_Help_Tour'),
+				'qtips'         => array('Registration_List_Table_Tips'),
+				'list_table'    => 'EE_Event_Registrations_List_Table',
+				'metaboxes'     => array(),
+				'require_nonce' => false,
+			),
+			'registration_checkins' => array(
+				'nav'           => array(
+					'label'      => esc_html__('Check-In Records', 'event_espresso'),
+					'order'      => 15,
+					'persistent' => false,
+					'url'        => '',
+				),
+				'list_table'    => 'EE_Registration_CheckIn_List_Table',
+				// 'help_tour' => array( 'Checkin_Toggle_View_Help_Tour' ),
+				'metaboxes'     => array(),
+				'require_nonce' => false,
+			),
+		);
+		$this->_page_config = array_merge($this->_page_config, $new_page_config);
+		$this->_page_config['contact_list']['list_table'] = 'Extend_EE_Attendee_Contact_List_Table';
+		$this->_page_config['default']['list_table'] = 'Extend_EE_Registrations_List_Table';
+	}
 
 
-    /**
-     * Ajax hooks for all routes in this page.
-     */
-    protected function _ajax_hooks()
-    {
-        parent::_ajax_hooks();
-        add_action('wp_ajax_get_newsletter_form_content', array($this, 'get_newsletter_form_content'));
-    }
+	/**
+	 * Ajax hooks for all routes in this page.
+	 */
+	protected function _ajax_hooks()
+	{
+		parent::_ajax_hooks();
+		add_action('wp_ajax_get_newsletter_form_content', array($this, 'get_newsletter_form_content'));
+	}
 
 
-    /**
-     * Global scripts for all routes in this page.
-     */
-    public function load_scripts_styles()
-    {
-        parent::load_scripts_styles();
-        // if newsletter message type is active then let's add filter and load js for it.
-        if (EEH_MSG_Template::is_mt_active('newsletter')) {
-            // enqueue newsletter js
-            wp_enqueue_script(
-                'ee-newsletter-trigger',
-                REG_CAF_ASSETS_URL . 'ee-newsletter-trigger.js',
-                array('ee-dialog'),
-                EVENT_ESPRESSO_VERSION,
-                true
-            );
-            wp_enqueue_style(
-                'ee-newsletter-trigger-css',
-                REG_CAF_ASSETS_URL . 'ee-newsletter-trigger.css',
-                array(),
-                EVENT_ESPRESSO_VERSION
-            );
-            // hook in buttons for newsletter message type trigger.
-            add_action(
-                'AHEE__EE_Admin_List_Table__extra_tablenav__after_bottom_buttons',
-                array($this, 'add_newsletter_action_buttons'),
-                10
-            );
-        }
-    }
+	/**
+	 * Global scripts for all routes in this page.
+	 */
+	public function load_scripts_styles()
+	{
+		parent::load_scripts_styles();
+		// if newsletter message type is active then let's add filter and load js for it.
+		if (EEH_MSG_Template::is_mt_active('newsletter')) {
+			// enqueue newsletter js
+			wp_enqueue_script(
+				'ee-newsletter-trigger',
+				REG_CAF_ASSETS_URL . 'ee-newsletter-trigger.js',
+				array('ee-dialog'),
+				EVENT_ESPRESSO_VERSION,
+				true
+			);
+			wp_enqueue_style(
+				'ee-newsletter-trigger-css',
+				REG_CAF_ASSETS_URL . 'ee-newsletter-trigger.css',
+				array(),
+				EVENT_ESPRESSO_VERSION
+			);
+			// hook in buttons for newsletter message type trigger.
+			add_action(
+				'AHEE__EE_Admin_List_Table__extra_tablenav__after_bottom_buttons',
+				array($this, 'add_newsletter_action_buttons'),
+				10
+			);
+		}
+	}
 
 
-    /**
-     * Scripts and styles for just the reports route.
-     */
-    public function load_scripts_styles_reports()
-    {
-        wp_register_script(
-            'ee-reg-reports-js',
-            REG_CAF_ASSETS_URL . 'ee-registration-admin-reports.js',
-            array('google-charts'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_enqueue_script('ee-reg-reports-js');
-        $this->_registration_reports_js_setup();
-    }
+	/**
+	 * Scripts and styles for just the reports route.
+	 */
+	public function load_scripts_styles_reports()
+	{
+		wp_register_script(
+			'ee-reg-reports-js',
+			REG_CAF_ASSETS_URL . 'ee-registration-admin-reports.js',
+			array('google-charts'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_enqueue_script('ee-reg-reports-js');
+		$this->_registration_reports_js_setup();
+	}
 
 
-    /**
-     * Register screen options for event_registrations route.
-     */
-    protected function _add_screen_options_event_registrations()
-    {
-        $this->_per_page_screen_option();
-    }
+	/**
+	 * Register screen options for event_registrations route.
+	 */
+	protected function _add_screen_options_event_registrations()
+	{
+		$this->_per_page_screen_option();
+	}
 
 
-    /**
-     * Register screen options for registration_checkins route
-     */
-    protected function _add_screen_options_registration_checkins()
-    {
-        $page_title = $this->_admin_page_title;
-        $this->_admin_page_title = esc_html__('Check-In Records', 'event_espresso');
-        $this->_per_page_screen_option();
-        $this->_admin_page_title = $page_title;
-    }
+	/**
+	 * Register screen options for registration_checkins route
+	 */
+	protected function _add_screen_options_registration_checkins()
+	{
+		$page_title = $this->_admin_page_title;
+		$this->_admin_page_title = esc_html__('Check-In Records', 'event_espresso');
+		$this->_per_page_screen_option();
+		$this->_admin_page_title = $page_title;
+	}
 
 
-    /**
-     * Set views property for event_registrations route.
-     */
-    protected function _set_list_table_views_event_registrations()
-    {
-        $this->_views = array(
-            'all' => array(
-                'slug'        => 'all',
-                'label'       => esc_html__('All', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => ! isset($this->_req_data['event_id'])
-                    ? array()
-                    : array(
-                        'toggle_checkin_status_bulk' => esc_html__('Toggle Check-In', 'event_espresso'),
-                    ),
-            ),
-        );
-    }
+	/**
+	 * Set views property for event_registrations route.
+	 */
+	protected function _set_list_table_views_event_registrations()
+	{
+		$this->_views = array(
+			'all' => array(
+				'slug'        => 'all',
+				'label'       => esc_html__('All', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => ! isset($this->_req_data['event_id'])
+					? array()
+					: array(
+						'toggle_checkin_status_bulk' => esc_html__('Toggle Check-In', 'event_espresso'),
+					),
+			),
+		);
+	}
 
 
-    /**
-     * Set views property for registration_checkins route.
-     */
-    protected function _set_list_table_views_registration_checkins()
-    {
-        $this->_views = array(
-            'all' => array(
-                'slug'        => 'all',
-                'label'       => esc_html__('All', 'event_espresso'),
-                'count'       => 0,
-                'bulk_action' => array('delete_checkin_rows' => esc_html__('Delete Check-In Rows', 'event_espresso')),
-            ),
-        );
-    }
+	/**
+	 * Set views property for registration_checkins route.
+	 */
+	protected function _set_list_table_views_registration_checkins()
+	{
+		$this->_views = array(
+			'all' => array(
+				'slug'        => 'all',
+				'label'       => esc_html__('All', 'event_espresso'),
+				'count'       => 0,
+				'bulk_action' => array('delete_checkin_rows' => esc_html__('Delete Check-In Rows', 'event_espresso')),
+			),
+		);
+	}
 
 
-    /**
-     * callback for ajax action.
-     *
-     * @since 4.3.0
-     * @return void (JSON)
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function get_newsletter_form_content()
-    {
-        // do a nonce check cause we're not coming in from an normal route here.
-        $nonce = isset($this->_req_data['get_newsletter_form_content_nonce']) ? sanitize_text_field(
-            $this->_req_data['get_newsletter_form_content_nonce']
-        ) : '';
-        $nonce_ref = 'get_newsletter_form_content_nonce';
-        $this->_verify_nonce($nonce, $nonce_ref);
-        // let's get the mtp for the incoming MTP_ ID
-        if (! isset($this->_req_data['GRP_ID'])) {
-            EE_Error::add_error(
-                esc_html__(
-                    'There must be something broken with the js or html structure because the required data for getting a message template group is not present (need an GRP_ID).',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $this->_template_args['success'] = false;
-            $this->_template_args['error'] = true;
-            $this->_return_json();
-        }
-        $MTPG = EEM_Message_Template_Group::instance()->get_one_by_ID($this->_req_data['GRP_ID']);
-        if (! $MTPG instanceof EE_Message_Template_Group) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'The GRP_ID given (%d) does not appear to have a corresponding row in the database.',
-                        'event_espresso'
-                    ),
-                    $this->_req_data['GRP_ID']
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $this->_template_args['success'] = false;
-            $this->_template_args['error'] = true;
-            $this->_return_json();
-        }
-        $MTPs = $MTPG->context_templates();
-        $MTPs = $MTPs['attendee'];
-        $template_fields = array();
-        /** @var EE_Message_Template $MTP */
-        foreach ($MTPs as $MTP) {
-            $field = $MTP->get('MTP_template_field');
-            if ($field === 'content') {
-                $content = $MTP->get('MTP_content');
-                if (! empty($content['newsletter_content'])) {
-                    $template_fields['newsletter_content'] = $content['newsletter_content'];
-                }
-                continue;
-            }
-            $template_fields[ $MTP->get('MTP_template_field') ] = $MTP->get('MTP_content');
-        }
-        $this->_template_args['success'] = true;
-        $this->_template_args['error'] = false;
-        $this->_template_args['data'] = array(
-            'batch_message_from'    => isset($template_fields['from'])
-                ? $template_fields['from']
-                : '',
-            'batch_message_subject' => isset($template_fields['subject'])
-                ? $template_fields['subject']
-                : '',
-            'batch_message_content' => isset($template_fields['newsletter_content'])
-                ? $template_fields['newsletter_content']
-                : '',
-        );
-        $this->_return_json();
-    }
+	/**
+	 * callback for ajax action.
+	 *
+	 * @since 4.3.0
+	 * @return void (JSON)
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function get_newsletter_form_content()
+	{
+		// do a nonce check cause we're not coming in from an normal route here.
+		$nonce = isset($this->_req_data['get_newsletter_form_content_nonce']) ? sanitize_text_field(
+			$this->_req_data['get_newsletter_form_content_nonce']
+		) : '';
+		$nonce_ref = 'get_newsletter_form_content_nonce';
+		$this->_verify_nonce($nonce, $nonce_ref);
+		// let's get the mtp for the incoming MTP_ ID
+		if (! isset($this->_req_data['GRP_ID'])) {
+			EE_Error::add_error(
+				esc_html__(
+					'There must be something broken with the js or html structure because the required data for getting a message template group is not present (need an GRP_ID).',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$this->_template_args['success'] = false;
+			$this->_template_args['error'] = true;
+			$this->_return_json();
+		}
+		$MTPG = EEM_Message_Template_Group::instance()->get_one_by_ID($this->_req_data['GRP_ID']);
+		if (! $MTPG instanceof EE_Message_Template_Group) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'The GRP_ID given (%d) does not appear to have a corresponding row in the database.',
+						'event_espresso'
+					),
+					$this->_req_data['GRP_ID']
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$this->_template_args['success'] = false;
+			$this->_template_args['error'] = true;
+			$this->_return_json();
+		}
+		$MTPs = $MTPG->context_templates();
+		$MTPs = $MTPs['attendee'];
+		$template_fields = array();
+		/** @var EE_Message_Template $MTP */
+		foreach ($MTPs as $MTP) {
+			$field = $MTP->get('MTP_template_field');
+			if ($field === 'content') {
+				$content = $MTP->get('MTP_content');
+				if (! empty($content['newsletter_content'])) {
+					$template_fields['newsletter_content'] = $content['newsletter_content'];
+				}
+				continue;
+			}
+			$template_fields[ $MTP->get('MTP_template_field') ] = $MTP->get('MTP_content');
+		}
+		$this->_template_args['success'] = true;
+		$this->_template_args['error'] = false;
+		$this->_template_args['data'] = array(
+			'batch_message_from'    => isset($template_fields['from'])
+				? $template_fields['from']
+				: '',
+			'batch_message_subject' => isset($template_fields['subject'])
+				? $template_fields['subject']
+				: '',
+			'batch_message_content' => isset($template_fields['newsletter_content'])
+				? $template_fields['newsletter_content']
+				: '',
+		);
+		$this->_return_json();
+	}
 
 
-    /**
-     * callback for AHEE__EE_Admin_List_Table__extra_tablenav__after_bottom_buttons action
-     *
-     * @since 4.3.0
-     * @param EE_Admin_List_Table $list_table
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function add_newsletter_action_buttons(EE_Admin_List_Table $list_table)
-    {
-        if (! EE_Registry::instance()->CAP->current_user_can(
-            'ee_send_message',
-            'espresso_registrations_newsletter_selected_send'
-        )
-        ) {
-            return;
-        }
-        $routes_to_add_to = array(
-            'contact_list',
-            'event_registrations',
-            'default',
-        );
-        if ($this->_current_page === 'espresso_registrations' && in_array($this->_req_action, $routes_to_add_to)) {
-            if (($this->_req_action === 'event_registrations' && empty($this->_req_data['event_id']))
-                || (isset($this->_req_data['status']) && $this->_req_data['status'] === 'trash')
-            ) {
-                echo '';
-            } else {
-                $button_text = sprintf(
-                    esc_html__('Send Batch Message (%s selected)', 'event_espresso'),
-                    '<span class="send-selected-newsletter-count">0</span>'
-                );
-                echo '<button id="selected-batch-send-trigger" class="button secondary-button">'
-                     . '<span class="dashicons dashicons-email "></span>'
-                     . $button_text
-                     . '</button>';
-                add_action('admin_footer', array($this, 'newsletter_send_form_skeleton'));
-            }
-        }
-    }
+	/**
+	 * callback for AHEE__EE_Admin_List_Table__extra_tablenav__after_bottom_buttons action
+	 *
+	 * @since 4.3.0
+	 * @param EE_Admin_List_Table $list_table
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function add_newsletter_action_buttons(EE_Admin_List_Table $list_table)
+	{
+		if (! EE_Registry::instance()->CAP->current_user_can(
+			'ee_send_message',
+			'espresso_registrations_newsletter_selected_send'
+		)
+		) {
+			return;
+		}
+		$routes_to_add_to = array(
+			'contact_list',
+			'event_registrations',
+			'default',
+		);
+		if ($this->_current_page === 'espresso_registrations' && in_array($this->_req_action, $routes_to_add_to)) {
+			if (($this->_req_action === 'event_registrations' && empty($this->_req_data['event_id']))
+				|| (isset($this->_req_data['status']) && $this->_req_data['status'] === 'trash')
+			) {
+				echo '';
+			} else {
+				$button_text = sprintf(
+					esc_html__('Send Batch Message (%s selected)', 'event_espresso'),
+					'<span class="send-selected-newsletter-count">0</span>'
+				);
+				echo '<button id="selected-batch-send-trigger" class="button secondary-button">'
+					 . '<span class="dashicons dashicons-email "></span>'
+					 . $button_text
+					 . '</button>';
+				add_action('admin_footer', array($this, 'newsletter_send_form_skeleton'));
+			}
+		}
+	}
 
 
-    /**
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function newsletter_send_form_skeleton()
-    {
-        $list_table = $this->_list_table_object;
-        $codes = array();
-        // need to templates for the newsletter message type for the template selector.
-        $values[] = array('text' => esc_html__('Select Template to Use', 'event_espresso'), 'id' => 0);
-        $mtps = EEM_Message_Template_Group::instance()->get_all(
-            array(array('MTP_message_type' => 'newsletter', 'MTP_messenger' => 'email'))
-        );
-        foreach ($mtps as $mtp) {
-            $name = $mtp->name();
-            $values[] = array(
-                'text' => empty($name) ? esc_html__('Global', 'event_espresso') : $name,
-                'id'   => $mtp->ID(),
-            );
-        }
-        // need to get a list of shortcodes that are available for the newsletter message type.
-        $shortcodes = EEH_MSG_Template::get_shortcodes(
-            'newsletter',
-            'email',
-            array(),
-            'attendee',
-            false
-        );
-        foreach ($shortcodes as $field => $shortcode_array) {
-            $available_shortcodes = array();
-            foreach ($shortcode_array as $shortcode => $shortcode_details) {
-                $field_id = $field === '[NEWSLETTER_CONTENT]'
-                    ? 'content'
-                    : $field;
-                $field_id = 'batch-message-' . strtolower($field_id);
-                $available_shortcodes[] = '<span class="js-shortcode-selection" data-value="'
-                                          . $shortcode
-                                          . '" data-linked-input-id="' . $field_id . '">'
-                                          . $shortcode
-                                          . '</span>';
-            }
-            $codes[ $field ] = implode(', ', $available_shortcodes);
-        }
-        $shortcodes = $codes;
-        $form_template = REG_CAF_TEMPLATE_PATH . 'newsletter-send-form.template.php';
-        $form_template_args = array(
-            'form_action'       => admin_url('admin.php?page=espresso_registrations'),
-            'form_route'        => 'newsletter_selected_send',
-            'form_nonce_name'   => 'newsletter_selected_send_nonce',
-            'form_nonce'        => wp_create_nonce('newsletter_selected_send_nonce'),
-            'redirect_back_to'  => $this->_req_action,
-            'ajax_nonce'        => wp_create_nonce('get_newsletter_form_content_nonce'),
-            'template_selector' => EEH_Form_Fields::select_input('newsletter_mtp_selected', $values),
-            'shortcodes'        => $shortcodes,
-            'id_type'           => $list_table instanceof EE_Attendee_Contact_List_Table ? 'contact' : 'registration',
-        );
-        EEH_Template::display_template($form_template, $form_template_args);
-    }
+	/**
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function newsletter_send_form_skeleton()
+	{
+		$list_table = $this->_list_table_object;
+		$codes = array();
+		// need to templates for the newsletter message type for the template selector.
+		$values[] = array('text' => esc_html__('Select Template to Use', 'event_espresso'), 'id' => 0);
+		$mtps = EEM_Message_Template_Group::instance()->get_all(
+			array(array('MTP_message_type' => 'newsletter', 'MTP_messenger' => 'email'))
+		);
+		foreach ($mtps as $mtp) {
+			$name = $mtp->name();
+			$values[] = array(
+				'text' => empty($name) ? esc_html__('Global', 'event_espresso') : $name,
+				'id'   => $mtp->ID(),
+			);
+		}
+		// need to get a list of shortcodes that are available for the newsletter message type.
+		$shortcodes = EEH_MSG_Template::get_shortcodes(
+			'newsletter',
+			'email',
+			array(),
+			'attendee',
+			false
+		);
+		foreach ($shortcodes as $field => $shortcode_array) {
+			$available_shortcodes = array();
+			foreach ($shortcode_array as $shortcode => $shortcode_details) {
+				$field_id = $field === '[NEWSLETTER_CONTENT]'
+					? 'content'
+					: $field;
+				$field_id = 'batch-message-' . strtolower($field_id);
+				$available_shortcodes[] = '<span class="js-shortcode-selection" data-value="'
+										  . $shortcode
+										  . '" data-linked-input-id="' . $field_id . '">'
+										  . $shortcode
+										  . '</span>';
+			}
+			$codes[ $field ] = implode(', ', $available_shortcodes);
+		}
+		$shortcodes = $codes;
+		$form_template = REG_CAF_TEMPLATE_PATH . 'newsletter-send-form.template.php';
+		$form_template_args = array(
+			'form_action'       => admin_url('admin.php?page=espresso_registrations'),
+			'form_route'        => 'newsletter_selected_send',
+			'form_nonce_name'   => 'newsletter_selected_send_nonce',
+			'form_nonce'        => wp_create_nonce('newsletter_selected_send_nonce'),
+			'redirect_back_to'  => $this->_req_action,
+			'ajax_nonce'        => wp_create_nonce('get_newsletter_form_content_nonce'),
+			'template_selector' => EEH_Form_Fields::select_input('newsletter_mtp_selected', $values),
+			'shortcodes'        => $shortcodes,
+			'id_type'           => $list_table instanceof EE_Attendee_Contact_List_Table ? 'contact' : 'registration',
+		);
+		EEH_Template::display_template($form_template, $form_template_args);
+	}
 
 
-    /**
-     * Handles sending selected registrations/contacts a newsletter.
-     *
-     * @since  4.3.0
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _newsletter_selected_send()
-    {
-        $success = true;
-        // first we need to make sure we have a GRP_ID so we know what template we're sending and updating!
-        if (empty($this->_req_data['newsletter_mtp_selected'])) {
-            EE_Error::add_error(
-                esc_html__(
-                    'In order to send a message, a Message Template GRP_ID is needed. It was not provided so messages were not sent.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $success = false;
-        }
-        if ($success) {
-            // update Message template in case there are any changes
-            $Message_Template_Group = EEM_Message_Template_Group::instance()->get_one_by_ID(
-                $this->_req_data['newsletter_mtp_selected']
-            );
-            $Message_Templates = $Message_Template_Group instanceof EE_Message_Template_Group
-                ? $Message_Template_Group->context_templates()
-                : array();
-            if (empty($Message_Templates)) {
-                EE_Error::add_error(
-                    esc_html__(
-                        'Unable to retrieve message template fields from the db. Messages not sent.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-            // let's just update the specific fields
-            foreach ($Message_Templates['attendee'] as $Message_Template) {
-                if ($Message_Template instanceof EE_Message_Template) {
-                    $field = $Message_Template->get('MTP_template_field');
-                    $content = $Message_Template->get('MTP_content');
-                    $new_content = $content;
-                    switch ($field) {
-                        case 'from':
-                            $new_content = ! empty($this->_req_data['batch_message']['from'])
-                                ? $this->_req_data['batch_message']['from']
-                                : $content;
-                            break;
-                        case 'subject':
-                            $new_content = ! empty($this->_req_data['batch_message']['subject'])
-                                ? $this->_req_data['batch_message']['subject']
-                                : $content;
-                            break;
-                        case 'content':
-                            $new_content = $content;
-                            $new_content['newsletter_content'] = ! empty($this->_req_data['batch_message']['content'])
-                                ? $this->_req_data['batch_message']['content']
-                                : $content['newsletter_content'];
-                            break;
-                        default:
-                            // continue the foreach loop, we don't want to set $new_content nor save.
-                            continue 2;
-                    }
-                    $Message_Template->set('MTP_content', $new_content);
-                    $Message_Template->save();
-                }
-            }
-            // great fields are updated!  now let's make sure we just have contact objects (EE_Attendee).
-            $id_type = ! empty($this->_req_data['batch_message']['id_type'])
-                ? $this->_req_data['batch_message']['id_type']
-                : 'registration';
-            // id_type will affect how we assemble the ids.
-            $ids = ! empty($this->_req_data['batch_message']['ids'])
-                ? json_decode(stripslashes($this->_req_data['batch_message']['ids']))
-                : array();
-            $registrations_used_for_contact_data = array();
-            // using switch because eventually we'll have other contexts that will be used for generating messages.
-            switch ($id_type) {
-                case 'registration':
-                    $registrations_used_for_contact_data = EEM_Registration::instance()->get_all(
-                        array(
-                            array(
-                                'REG_ID' => array('IN', $ids),
-                            ),
-                        )
-                    );
-                    break;
-                case 'contact':
-                    $registrations_used_for_contact_data = EEM_Registration::instance()
-                                                                           ->get_latest_registration_for_each_of_given_contacts(
-                                                                               $ids
-                                                                           );
-                    break;
-            }
-            do_action_ref_array(
-                'AHEE__Extend_Registrations_Admin_Page___newsletter_selected_send__with_registrations',
-                array(
-                    $registrations_used_for_contact_data,
-                    $Message_Template_Group->ID(),
-                )
-            );
-            // kept for backward compat, internally we no longer use this action.
-            // @deprecated 4.8.36.rc.002
-            $contacts = $id_type === 'registration'
-                ? EEM_Attendee::instance()->get_array_of_contacts_from_reg_ids($ids)
-                : EEM_Attendee::instance()->get_all(array(array('ATT_ID' => array('in', $ids))));
-            do_action_ref_array(
-                'AHEE__Extend_Registrations_Admin_Page___newsletter_selected_send',
-                array(
-                    $contacts,
-                    $Message_Template_Group->ID(),
-                )
-            );
-        }
-        $query_args = array(
-            'action' => ! empty($this->_req_data['redirect_back_to'])
-                ? $this->_req_data['redirect_back_to']
-                : 'default',
-        );
-        $this->_redirect_after_action(false, '', '', $query_args, true);
-    }
+	/**
+	 * Handles sending selected registrations/contacts a newsletter.
+	 *
+	 * @since  4.3.0
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _newsletter_selected_send()
+	{
+		$success = true;
+		// first we need to make sure we have a GRP_ID so we know what template we're sending and updating!
+		if (empty($this->_req_data['newsletter_mtp_selected'])) {
+			EE_Error::add_error(
+				esc_html__(
+					'In order to send a message, a Message Template GRP_ID is needed. It was not provided so messages were not sent.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$success = false;
+		}
+		if ($success) {
+			// update Message template in case there are any changes
+			$Message_Template_Group = EEM_Message_Template_Group::instance()->get_one_by_ID(
+				$this->_req_data['newsletter_mtp_selected']
+			);
+			$Message_Templates = $Message_Template_Group instanceof EE_Message_Template_Group
+				? $Message_Template_Group->context_templates()
+				: array();
+			if (empty($Message_Templates)) {
+				EE_Error::add_error(
+					esc_html__(
+						'Unable to retrieve message template fields from the db. Messages not sent.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+			// let's just update the specific fields
+			foreach ($Message_Templates['attendee'] as $Message_Template) {
+				if ($Message_Template instanceof EE_Message_Template) {
+					$field = $Message_Template->get('MTP_template_field');
+					$content = $Message_Template->get('MTP_content');
+					$new_content = $content;
+					switch ($field) {
+						case 'from':
+							$new_content = ! empty($this->_req_data['batch_message']['from'])
+								? $this->_req_data['batch_message']['from']
+								: $content;
+							break;
+						case 'subject':
+							$new_content = ! empty($this->_req_data['batch_message']['subject'])
+								? $this->_req_data['batch_message']['subject']
+								: $content;
+							break;
+						case 'content':
+							$new_content = $content;
+							$new_content['newsletter_content'] = ! empty($this->_req_data['batch_message']['content'])
+								? $this->_req_data['batch_message']['content']
+								: $content['newsletter_content'];
+							break;
+						default:
+							// continue the foreach loop, we don't want to set $new_content nor save.
+							continue 2;
+					}
+					$Message_Template->set('MTP_content', $new_content);
+					$Message_Template->save();
+				}
+			}
+			// great fields are updated!  now let's make sure we just have contact objects (EE_Attendee).
+			$id_type = ! empty($this->_req_data['batch_message']['id_type'])
+				? $this->_req_data['batch_message']['id_type']
+				: 'registration';
+			// id_type will affect how we assemble the ids.
+			$ids = ! empty($this->_req_data['batch_message']['ids'])
+				? json_decode(stripslashes($this->_req_data['batch_message']['ids']))
+				: array();
+			$registrations_used_for_contact_data = array();
+			// using switch because eventually we'll have other contexts that will be used for generating messages.
+			switch ($id_type) {
+				case 'registration':
+					$registrations_used_for_contact_data = EEM_Registration::instance()->get_all(
+						array(
+							array(
+								'REG_ID' => array('IN', $ids),
+							),
+						)
+					);
+					break;
+				case 'contact':
+					$registrations_used_for_contact_data = EEM_Registration::instance()
+																		   ->get_latest_registration_for_each_of_given_contacts(
+																			   $ids
+																		   );
+					break;
+			}
+			do_action_ref_array(
+				'AHEE__Extend_Registrations_Admin_Page___newsletter_selected_send__with_registrations',
+				array(
+					$registrations_used_for_contact_data,
+					$Message_Template_Group->ID(),
+				)
+			);
+			// kept for backward compat, internally we no longer use this action.
+			// @deprecated 4.8.36.rc.002
+			$contacts = $id_type === 'registration'
+				? EEM_Attendee::instance()->get_array_of_contacts_from_reg_ids($ids)
+				: EEM_Attendee::instance()->get_all(array(array('ATT_ID' => array('in', $ids))));
+			do_action_ref_array(
+				'AHEE__Extend_Registrations_Admin_Page___newsletter_selected_send',
+				array(
+					$contacts,
+					$Message_Template_Group->ID(),
+				)
+			);
+		}
+		$query_args = array(
+			'action' => ! empty($this->_req_data['redirect_back_to'])
+				? $this->_req_data['redirect_back_to']
+				: 'default',
+		);
+		$this->_redirect_after_action(false, '', '', $query_args, true);
+	}
 
 
-    /**
-     * This is called when javascript is being enqueued to setup the various data needed for the reports js.
-     * Also $this->{$_reports_template_data} property is set for later usage by the _registration_reports method.
-     */
-    protected function _registration_reports_js_setup()
-    {
-        $this->_reports_template_data['admin_reports'][] = $this->_registrations_per_day_report();
-        $this->_reports_template_data['admin_reports'][] = $this->_registrations_per_event_report();
-    }
+	/**
+	 * This is called when javascript is being enqueued to setup the various data needed for the reports js.
+	 * Also $this->{$_reports_template_data} property is set for later usage by the _registration_reports method.
+	 */
+	protected function _registration_reports_js_setup()
+	{
+		$this->_reports_template_data['admin_reports'][] = $this->_registrations_per_day_report();
+		$this->_reports_template_data['admin_reports'][] = $this->_registrations_per_event_report();
+	}
 
 
-    /**
-     *        generates Business Reports regarding Registrations
-     *
-     * @access protected
-     * @return void
-     * @throws DomainException
-     */
-    protected function _registration_reports()
-    {
-        $template_path = EE_ADMIN_TEMPLATE . 'admin_reports.template.php';
-        $this->_template_args['admin_page_content'] = EEH_Template::display_template(
-            $template_path,
-            $this->_reports_template_data,
-            true
-        );
-        // the final template wrapper
-        $this->display_admin_page_with_no_sidebar();
-    }
+	/**
+	 *        generates Business Reports regarding Registrations
+	 *
+	 * @access protected
+	 * @return void
+	 * @throws DomainException
+	 */
+	protected function _registration_reports()
+	{
+		$template_path = EE_ADMIN_TEMPLATE . 'admin_reports.template.php';
+		$this->_template_args['admin_page_content'] = EEH_Template::display_template(
+			$template_path,
+			$this->_reports_template_data,
+			true
+		);
+		// the final template wrapper
+		$this->display_admin_page_with_no_sidebar();
+	}
 
 
-    /**
-     * Generates Business Report showing total registrations per day.
-     *
-     * @param string $period The period (acceptable by PHP Datetime constructor) for which the report is generated.
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _registrations_per_day_report($period = '-1 month')
-    {
-        $report_ID = 'reg-admin-registrations-per-day-report-dv';
-        $results = EEM_Registration::instance()->get_registrations_per_day_and_per_status_report($period);
-        $results = (array) $results;
-        $regs = array();
-        $subtitle = '';
-        if ($results) {
-            $column_titles = array();
-            $tracker = 0;
-            foreach ($results as $result) {
-                $report_column_values = array();
-                foreach ($result as $property_name => $property_value) {
-                    $property_value = $property_name === 'Registration_REG_date' ? $property_value
-                        : (int) $property_value;
-                    $report_column_values[] = $property_value;
-                    if ($tracker === 0) {
-                        if ($property_name === 'Registration_REG_date') {
-                            $column_titles[] = esc_html__(
-                                'Date (only days with registrations are shown)',
-                                'event_espresso'
-                            );
-                        } else {
-                            $column_titles[] = EEH_Template::pretty_status($property_name, false, 'sentence');
-                        }
-                    }
-                }
-                $tracker++;
-                $regs[] = $report_column_values;
-            }
-            // make sure the column_titles is pushed to the beginning of the array
-            array_unshift($regs, $column_titles);
-            // setup the date range.
-            $DateTimeZone = new DateTimeZone(EEH_DTT_Helper::get_timezone());
-            $beginning_date = new DateTime("now " . $period, $DateTimeZone);
-            $ending_date = new DateTime("now", $DateTimeZone);
-            $subtitle = sprintf(
-                _x('For the period: %1$s to %2$s', 'Used to give date range', 'event_espresso'),
-                $beginning_date->format('Y-m-d'),
-                $ending_date->format('Y-m-d')
-            );
-        }
-        $report_title = esc_html__('Total Registrations per Day', 'event_espresso');
-        $report_params = array(
-            'title'     => $report_title,
-            'subtitle'  => $subtitle,
-            'id'        => $report_ID,
-            'regs'      => $regs,
-            'noResults' => empty($regs),
-            'noRegsMsg' => sprintf(
-                esc_html__(
-                    '%sThere are currently no registration records in the last month for this report.%s',
-                    'event_espresso'
-                ),
-                '<h2>' . $report_title . '</h2><p>',
-                '</p>'
-            ),
-        );
-        wp_localize_script('ee-reg-reports-js', 'regPerDay', $report_params);
-        return $report_ID;
-    }
+	/**
+	 * Generates Business Report showing total registrations per day.
+	 *
+	 * @param string $period The period (acceptable by PHP Datetime constructor) for which the report is generated.
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _registrations_per_day_report($period = '-1 month')
+	{
+		$report_ID = 'reg-admin-registrations-per-day-report-dv';
+		$results = EEM_Registration::instance()->get_registrations_per_day_and_per_status_report($period);
+		$results = (array) $results;
+		$regs = array();
+		$subtitle = '';
+		if ($results) {
+			$column_titles = array();
+			$tracker = 0;
+			foreach ($results as $result) {
+				$report_column_values = array();
+				foreach ($result as $property_name => $property_value) {
+					$property_value = $property_name === 'Registration_REG_date' ? $property_value
+						: (int) $property_value;
+					$report_column_values[] = $property_value;
+					if ($tracker === 0) {
+						if ($property_name === 'Registration_REG_date') {
+							$column_titles[] = esc_html__(
+								'Date (only days with registrations are shown)',
+								'event_espresso'
+							);
+						} else {
+							$column_titles[] = EEH_Template::pretty_status($property_name, false, 'sentence');
+						}
+					}
+				}
+				$tracker++;
+				$regs[] = $report_column_values;
+			}
+			// make sure the column_titles is pushed to the beginning of the array
+			array_unshift($regs, $column_titles);
+			// setup the date range.
+			$DateTimeZone = new DateTimeZone(EEH_DTT_Helper::get_timezone());
+			$beginning_date = new DateTime("now " . $period, $DateTimeZone);
+			$ending_date = new DateTime("now", $DateTimeZone);
+			$subtitle = sprintf(
+				_x('For the period: %1$s to %2$s', 'Used to give date range', 'event_espresso'),
+				$beginning_date->format('Y-m-d'),
+				$ending_date->format('Y-m-d')
+			);
+		}
+		$report_title = esc_html__('Total Registrations per Day', 'event_espresso');
+		$report_params = array(
+			'title'     => $report_title,
+			'subtitle'  => $subtitle,
+			'id'        => $report_ID,
+			'regs'      => $regs,
+			'noResults' => empty($regs),
+			'noRegsMsg' => sprintf(
+				esc_html__(
+					'%sThere are currently no registration records in the last month for this report.%s',
+					'event_espresso'
+				),
+				'<h2>' . $report_title . '</h2><p>',
+				'</p>'
+			),
+		);
+		wp_localize_script('ee-reg-reports-js', 'regPerDay', $report_params);
+		return $report_ID;
+	}
 
 
-    /**
-     * Generates Business Report showing total registrations per event.
-     *
-     * @param string $period The period (acceptable by PHP Datetime constructor) for which the report is generated.
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _registrations_per_event_report($period = '-1 month')
-    {
-        $report_ID = 'reg-admin-registrations-per-event-report-dv';
-        $results = EEM_Registration::instance()->get_registrations_per_event_and_per_status_report($period);
-        $results = (array) $results;
-        $regs = array();
-        $subtitle = '';
-        if ($results) {
-            $column_titles = array();
-            $tracker = 0;
-            foreach ($results as $result) {
-                $report_column_values = array();
-                foreach ($result as $property_name => $property_value) {
-                    $property_value = $property_name === 'Registration_Event' ? wp_trim_words(
-                        $property_value,
-                        4,
-                        '...'
-                    ) : (int) $property_value;
-                    $report_column_values[] = $property_value;
-                    if ($tracker === 0) {
-                        if ($property_name === 'Registration_Event') {
-                            $column_titles[] = esc_html__('Event', 'event_espresso');
-                        } else {
-                            $column_titles[] = EEH_Template::pretty_status($property_name, false, 'sentence');
-                        }
-                    }
-                }
-                $tracker++;
-                $regs[] = $report_column_values;
-            }
-            // make sure the column_titles is pushed to the beginning of the array
-            array_unshift($regs, $column_titles);
-            // setup the date range.
-            $DateTimeZone = new DateTimeZone(EEH_DTT_Helper::get_timezone());
-            $beginning_date = new DateTime("now " . $period, $DateTimeZone);
-            $ending_date = new DateTime("now", $DateTimeZone);
-            $subtitle = sprintf(
-                _x('For the period: %1$s to %2$s', 'Used to give date range', 'event_espresso'),
-                $beginning_date->format('Y-m-d'),
-                $ending_date->format('Y-m-d')
-            );
-        }
-        $report_title = esc_html__('Total Registrations per Event', 'event_espresso');
-        $report_params = array(
-            'title'     => $report_title,
-            'subtitle'  => $subtitle,
-            'id'        => $report_ID,
-            'regs'      => $regs,
-            'noResults' => empty($regs),
-            'noRegsMsg' => sprintf(
-                esc_html__(
-                    '%sThere are currently no registration records in the last month for this report.%s',
-                    'event_espresso'
-                ),
-                '<h2>' . $report_title . '</h2><p>',
-                '</p>'
-            ),
-        );
-        wp_localize_script('ee-reg-reports-js', 'regPerEvent', $report_params);
-        return $report_ID;
-    }
+	/**
+	 * Generates Business Report showing total registrations per event.
+	 *
+	 * @param string $period The period (acceptable by PHP Datetime constructor) for which the report is generated.
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _registrations_per_event_report($period = '-1 month')
+	{
+		$report_ID = 'reg-admin-registrations-per-event-report-dv';
+		$results = EEM_Registration::instance()->get_registrations_per_event_and_per_status_report($period);
+		$results = (array) $results;
+		$regs = array();
+		$subtitle = '';
+		if ($results) {
+			$column_titles = array();
+			$tracker = 0;
+			foreach ($results as $result) {
+				$report_column_values = array();
+				foreach ($result as $property_name => $property_value) {
+					$property_value = $property_name === 'Registration_Event' ? wp_trim_words(
+						$property_value,
+						4,
+						'...'
+					) : (int) $property_value;
+					$report_column_values[] = $property_value;
+					if ($tracker === 0) {
+						if ($property_name === 'Registration_Event') {
+							$column_titles[] = esc_html__('Event', 'event_espresso');
+						} else {
+							$column_titles[] = EEH_Template::pretty_status($property_name, false, 'sentence');
+						}
+					}
+				}
+				$tracker++;
+				$regs[] = $report_column_values;
+			}
+			// make sure the column_titles is pushed to the beginning of the array
+			array_unshift($regs, $column_titles);
+			// setup the date range.
+			$DateTimeZone = new DateTimeZone(EEH_DTT_Helper::get_timezone());
+			$beginning_date = new DateTime("now " . $period, $DateTimeZone);
+			$ending_date = new DateTime("now", $DateTimeZone);
+			$subtitle = sprintf(
+				_x('For the period: %1$s to %2$s', 'Used to give date range', 'event_espresso'),
+				$beginning_date->format('Y-m-d'),
+				$ending_date->format('Y-m-d')
+			);
+		}
+		$report_title = esc_html__('Total Registrations per Event', 'event_espresso');
+		$report_params = array(
+			'title'     => $report_title,
+			'subtitle'  => $subtitle,
+			'id'        => $report_ID,
+			'regs'      => $regs,
+			'noResults' => empty($regs),
+			'noRegsMsg' => sprintf(
+				esc_html__(
+					'%sThere are currently no registration records in the last month for this report.%s',
+					'event_espresso'
+				),
+				'<h2>' . $report_title . '</h2><p>',
+				'</p>'
+			),
+		);
+		wp_localize_script('ee-reg-reports-js', 'regPerEvent', $report_params);
+		return $report_ID;
+	}
 
 
-    /**
-     * generates HTML for the Registration Check-in list table (showing all Check-ins for a specific registration)
-     *
-     * @access protected
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     */
-    protected function _registration_checkin_list_table()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $reg_id = isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : null;
-        /** @var EE_Registration $registration */
-        $registration = EEM_Registration::instance()->get_one_by_ID($reg_id);
-        if (! $registration instanceof EE_Registration) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__('An error occurred. There is no registration with ID (%d)', 'event_espresso'),
-                    $reg_id
-                )
-            );
-        }
-        $attendee = $registration->attendee();
-        $this->_admin_page_title .= $this->get_action_link_or_button(
-            'new_registration',
-            'add-registrant',
-            array('event_id' => $registration->event_ID()),
-            'add-new-h2'
-        );
-        $checked_in = new CheckinStatusDashicon(EE_Checkin::status_checked_in);
-        $checked_out = new CheckinStatusDashicon(EE_Checkin::status_checked_out);
-        $legend_items = array(
-            'checkin'  => array(
-                'class' => $checked_in->cssClasses(),
-                'desc'  => $checked_in->legendLabel(),
-            ),
-            'checkout' => array(
-                'class' => $checked_out->cssClasses(),
-                'desc'  => $checked_out->legendLabel(),
-            ),
-        );
-        $this->_template_args['after_list_table'] = $this->_display_legend($legend_items);
-        $dtt_id = isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null;
-        /** @var EE_Datetime $datetime */
-        $datetime = EEM_Datetime::instance()->get_one_by_ID($dtt_id);
-        $datetime_label = '';
-        if ($datetime instanceof EE_Datetime) {
-            $datetime_label = $datetime->get_dtt_display_name(true);
-            $datetime_label .= ! empty($datetime_label)
-                ? ' (' . $datetime->get_dtt_display_name() . ')'
-                : $datetime->get_dtt_display_name();
-        }
-        $datetime_link = ! empty($dtt_id) && $registration instanceof EE_Registration
-            ? EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'action'   => 'event_registrations',
-                    'event_id' => $registration->event_ID(),
-                    'DTT_ID'   => $dtt_id,
-                ),
-                $this->_admin_base_url
-            )
-            : '';
-        $datetime_link = ! empty($datetime_link)
-            ? '<a href="' . $datetime_link . '">'
-              . '<span id="checkin-dtt">'
-              . $datetime_label
-              . '</span></a>'
-            : $datetime_label;
-        $attendee_name = $attendee instanceof EE_Attendee
-            ? $attendee->full_name()
-            : '';
-        $attendee_link = $attendee instanceof EE_Attendee
-            ? $attendee->get_admin_details_link()
-            : '';
-        $attendee_link = ! empty($attendee_link)
-            ? '<a href="' . $attendee->get_admin_details_link() . '"'
-              . ' title="' . esc_html__('Click for attendee details', 'event_espresso') . '">'
-              . '<span id="checkin-attendee-name">'
-              . $attendee_name
-              . '</span></a>'
-            : '';
-        $event_link = $registration->event() instanceof EE_Event
-            ? $registration->event()->get_admin_details_link()
-            : '';
-        $event_link = ! empty($event_link)
-            ? '<a href="' . $event_link . '"'
-              . ' title="' . esc_html__('Click here to edit event.', 'event_espresso') . '">'
-              . '<span id="checkin-event-name">'
-              . $registration->event_name()
-              . '</span>'
-              . '</a>'
-            : '';
-        $this->_template_args['before_list_table'] = ! empty($reg_id) && ! empty($dtt_id)
-            ? '<h2>' . sprintf(
-                esc_html__('Displaying check in records for %1$s for %2$s at the event, %3$s', 'event_espresso'),
-                $attendee_link,
-                $datetime_link,
-                $event_link
-            ) . '</h2>'
-            : '';
-        $this->_template_args['list_table_hidden_fields'] = ! empty($reg_id)
-            ? '<input type="hidden" name="_REG_ID" value="' . $reg_id . '">' : '';
-        $this->_template_args['list_table_hidden_fields'] .= ! empty($dtt_id)
-            ? '<input type="hidden" name="DTT_ID" value="' . $dtt_id . '">' : '';
-        $this->display_admin_list_table_page_with_no_sidebar();
-    }
+	/**
+	 * generates HTML for the Registration Check-in list table (showing all Check-ins for a specific registration)
+	 *
+	 * @access protected
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 */
+	protected function _registration_checkin_list_table()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$reg_id = isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : null;
+		/** @var EE_Registration $registration */
+		$registration = EEM_Registration::instance()->get_one_by_ID($reg_id);
+		if (! $registration instanceof EE_Registration) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__('An error occurred. There is no registration with ID (%d)', 'event_espresso'),
+					$reg_id
+				)
+			);
+		}
+		$attendee = $registration->attendee();
+		$this->_admin_page_title .= $this->get_action_link_or_button(
+			'new_registration',
+			'add-registrant',
+			array('event_id' => $registration->event_ID()),
+			'add-new-h2'
+		);
+		$checked_in = new CheckinStatusDashicon(EE_Checkin::status_checked_in);
+		$checked_out = new CheckinStatusDashicon(EE_Checkin::status_checked_out);
+		$legend_items = array(
+			'checkin'  => array(
+				'class' => $checked_in->cssClasses(),
+				'desc'  => $checked_in->legendLabel(),
+			),
+			'checkout' => array(
+				'class' => $checked_out->cssClasses(),
+				'desc'  => $checked_out->legendLabel(),
+			),
+		);
+		$this->_template_args['after_list_table'] = $this->_display_legend($legend_items);
+		$dtt_id = isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null;
+		/** @var EE_Datetime $datetime */
+		$datetime = EEM_Datetime::instance()->get_one_by_ID($dtt_id);
+		$datetime_label = '';
+		if ($datetime instanceof EE_Datetime) {
+			$datetime_label = $datetime->get_dtt_display_name(true);
+			$datetime_label .= ! empty($datetime_label)
+				? ' (' . $datetime->get_dtt_display_name() . ')'
+				: $datetime->get_dtt_display_name();
+		}
+		$datetime_link = ! empty($dtt_id) && $registration instanceof EE_Registration
+			? EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'action'   => 'event_registrations',
+					'event_id' => $registration->event_ID(),
+					'DTT_ID'   => $dtt_id,
+				),
+				$this->_admin_base_url
+			)
+			: '';
+		$datetime_link = ! empty($datetime_link)
+			? '<a href="' . $datetime_link . '">'
+			  . '<span id="checkin-dtt">'
+			  . $datetime_label
+			  . '</span></a>'
+			: $datetime_label;
+		$attendee_name = $attendee instanceof EE_Attendee
+			? $attendee->full_name()
+			: '';
+		$attendee_link = $attendee instanceof EE_Attendee
+			? $attendee->get_admin_details_link()
+			: '';
+		$attendee_link = ! empty($attendee_link)
+			? '<a href="' . $attendee->get_admin_details_link() . '"'
+			  . ' title="' . esc_html__('Click for attendee details', 'event_espresso') . '">'
+			  . '<span id="checkin-attendee-name">'
+			  . $attendee_name
+			  . '</span></a>'
+			: '';
+		$event_link = $registration->event() instanceof EE_Event
+			? $registration->event()->get_admin_details_link()
+			: '';
+		$event_link = ! empty($event_link)
+			? '<a href="' . $event_link . '"'
+			  . ' title="' . esc_html__('Click here to edit event.', 'event_espresso') . '">'
+			  . '<span id="checkin-event-name">'
+			  . $registration->event_name()
+			  . '</span>'
+			  . '</a>'
+			: '';
+		$this->_template_args['before_list_table'] = ! empty($reg_id) && ! empty($dtt_id)
+			? '<h2>' . sprintf(
+				esc_html__('Displaying check in records for %1$s for %2$s at the event, %3$s', 'event_espresso'),
+				$attendee_link,
+				$datetime_link,
+				$event_link
+			) . '</h2>'
+			: '';
+		$this->_template_args['list_table_hidden_fields'] = ! empty($reg_id)
+			? '<input type="hidden" name="_REG_ID" value="' . $reg_id . '">' : '';
+		$this->_template_args['list_table_hidden_fields'] .= ! empty($dtt_id)
+			? '<input type="hidden" name="DTT_ID" value="' . $dtt_id . '">' : '';
+		$this->display_admin_list_table_page_with_no_sidebar();
+	}
 
 
-    /**
-     * toggle the Check-in status for the given registration (coming from ajax)
-     *
-     * @return void (JSON)
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function toggle_checkin_status()
-    {
-        // first make sure we have the necessary data
-        if (! isset($this->_req_data['_regid'])) {
-            EE_Error::add_error(
-                esc_html__(
-                    'There must be something broken with the html structure because the required data for toggling the Check-in status is not being sent via ajax',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $this->_template_args['success'] = false;
-            $this->_template_args['error'] = true;
-            $this->_return_json();
-        };
-        // do a nonce check cause we're not coming in from an normal route here.
-        $nonce = isset($this->_req_data['checkinnonce']) ? sanitize_text_field($this->_req_data['checkinnonce'])
-            : '';
-        $nonce_ref = 'checkin_nonce';
-        $this->_verify_nonce($nonce, $nonce_ref);
-        // beautiful! Made it this far so let's get the status.
-        $new_status = new CheckinStatusDashicon($this->_toggle_checkin_status());
-        // setup new class to return via ajax
-        $this->_template_args['admin_page_content'] = 'clickable trigger-checkin ' . $new_status->cssClasses();
-        $this->_template_args['success'] = true;
-        $this->_return_json();
-    }
+	/**
+	 * toggle the Check-in status for the given registration (coming from ajax)
+	 *
+	 * @return void (JSON)
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function toggle_checkin_status()
+	{
+		// first make sure we have the necessary data
+		if (! isset($this->_req_data['_regid'])) {
+			EE_Error::add_error(
+				esc_html__(
+					'There must be something broken with the html structure because the required data for toggling the Check-in status is not being sent via ajax',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$this->_template_args['success'] = false;
+			$this->_template_args['error'] = true;
+			$this->_return_json();
+		};
+		// do a nonce check cause we're not coming in from an normal route here.
+		$nonce = isset($this->_req_data['checkinnonce']) ? sanitize_text_field($this->_req_data['checkinnonce'])
+			: '';
+		$nonce_ref = 'checkin_nonce';
+		$this->_verify_nonce($nonce, $nonce_ref);
+		// beautiful! Made it this far so let's get the status.
+		$new_status = new CheckinStatusDashicon($this->_toggle_checkin_status());
+		// setup new class to return via ajax
+		$this->_template_args['admin_page_content'] = 'clickable trigger-checkin ' . $new_status->cssClasses();
+		$this->_template_args['success'] = true;
+		$this->_return_json();
+	}
 
 
-    /**
-     * handles toggling the checkin status for the registration,
-     *
-     * @access protected
-     * @return int|void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _toggle_checkin_status()
-    {
-        // first let's get the query args out of the way for the redirect
-        $query_args = array(
-            'action'   => 'event_registrations',
-            'event_id' => isset($this->_req_data['event_id']) ? $this->_req_data['event_id'] : null,
-            'DTT_ID'   => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null,
-        );
-        $new_status = false;
-        // bulk action check in toggle
-        if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
-            // cycle thru checkboxes
-            while (list($REG_ID, $value) = each($this->_req_data['checkbox'])) {
-                $DTT_ID = isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null;
-                $new_status = $this->_toggle_checkin($REG_ID, $DTT_ID);
-            }
-        } elseif (isset($this->_req_data['_regid'])) {
-            // coming from ajax request
-            $DTT_ID = isset($this->_req_data['dttid']) ? $this->_req_data['dttid'] : null;
-            $query_args['DTT_ID'] = $DTT_ID;
-            $new_status = $this->_toggle_checkin($this->_req_data['_regid'], $DTT_ID);
-        } else {
-            EE_Error::add_error(
-                esc_html__('Missing some required data to toggle the Check-in', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        if (defined('DOING_AJAX')) {
-            return $new_status;
-        }
-        $this->_redirect_after_action(false, '', '', $query_args, true);
-    }
+	/**
+	 * handles toggling the checkin status for the registration,
+	 *
+	 * @access protected
+	 * @return int|void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _toggle_checkin_status()
+	{
+		// first let's get the query args out of the way for the redirect
+		$query_args = array(
+			'action'   => 'event_registrations',
+			'event_id' => isset($this->_req_data['event_id']) ? $this->_req_data['event_id'] : null,
+			'DTT_ID'   => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null,
+		);
+		$new_status = false;
+		// bulk action check in toggle
+		if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
+			// cycle thru checkboxes
+			while (list($REG_ID, $value) = each($this->_req_data['checkbox'])) {
+				$DTT_ID = isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null;
+				$new_status = $this->_toggle_checkin($REG_ID, $DTT_ID);
+			}
+		} elseif (isset($this->_req_data['_regid'])) {
+			// coming from ajax request
+			$DTT_ID = isset($this->_req_data['dttid']) ? $this->_req_data['dttid'] : null;
+			$query_args['DTT_ID'] = $DTT_ID;
+			$new_status = $this->_toggle_checkin($this->_req_data['_regid'], $DTT_ID);
+		} else {
+			EE_Error::add_error(
+				esc_html__('Missing some required data to toggle the Check-in', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		if (defined('DOING_AJAX')) {
+			return $new_status;
+		}
+		$this->_redirect_after_action(false, '', '', $query_args, true);
+	}
 
 
-    /**
-     * This is toggles a single Check-in for the given registration and datetime.
-     *
-     * @param  int $REG_ID The registration we're toggling
-     * @param  int $DTT_ID The datetime we're toggling
-     * @return int The new status toggled to.
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _toggle_checkin($REG_ID, $DTT_ID)
-    {
-        /** @var EE_Registration $REG */
-        $REG = EEM_Registration::instance()->get_one_by_ID($REG_ID);
-        $new_status = $REG->toggle_checkin_status($DTT_ID);
-        if ($new_status !== false) {
-            EE_Error::add_success($REG->get_checkin_msg($DTT_ID));
-        } else {
-            EE_Error::add_error($REG->get_checkin_msg($DTT_ID, true), __FILE__, __FUNCTION__, __LINE__);
-            $new_status = false;
-        }
-        return $new_status;
-    }
+	/**
+	 * This is toggles a single Check-in for the given registration and datetime.
+	 *
+	 * @param  int $REG_ID The registration we're toggling
+	 * @param  int $DTT_ID The datetime we're toggling
+	 * @return int The new status toggled to.
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _toggle_checkin($REG_ID, $DTT_ID)
+	{
+		/** @var EE_Registration $REG */
+		$REG = EEM_Registration::instance()->get_one_by_ID($REG_ID);
+		$new_status = $REG->toggle_checkin_status($DTT_ID);
+		if ($new_status !== false) {
+			EE_Error::add_success($REG->get_checkin_msg($DTT_ID));
+		} else {
+			EE_Error::add_error($REG->get_checkin_msg($DTT_ID, true), __FILE__, __FUNCTION__, __LINE__);
+			$new_status = false;
+		}
+		return $new_status;
+	}
 
 
-    /**
-     * Takes care of deleting multiple EE_Checkin table rows
-     *
-     * @access protected
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _delete_checkin_rows()
-    {
-        $query_args = array(
-            'action'  => 'registration_checkins',
-            'DTT_ID'  => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : 0,
-            '_REG_ID' => isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : 0,
-        );
-        $errors = 0;
-        if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
-            while (list($CHK_ID, $value) = each($this->_req_data['checkbox'])) {
-                if (! EEM_Checkin::instance()->delete_by_ID($CHK_ID)) {
-                    $errors++;
-                }
-            }
-        } else {
-            EE_Error::add_error(
-                esc_html__(
-                    'So, something went wrong with the bulk delete because there was no data received for instructions on WHAT to delete!',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $this->_redirect_after_action(false, '', '', $query_args, true);
-        }
-        if ($errors > 0) {
-            EE_Error::add_error(
-                sprintf(__('There were %d records that did not delete successfully', 'event_espresso'), $errors),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        } else {
-            EE_Error::add_success(__('Records were successfully deleted', 'event_espresso'));
-        }
-        $this->_redirect_after_action(false, '', '', $query_args, true);
-    }
+	/**
+	 * Takes care of deleting multiple EE_Checkin table rows
+	 *
+	 * @access protected
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _delete_checkin_rows()
+	{
+		$query_args = array(
+			'action'  => 'registration_checkins',
+			'DTT_ID'  => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : 0,
+			'_REG_ID' => isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : 0,
+		);
+		$errors = 0;
+		if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
+			while (list($CHK_ID, $value) = each($this->_req_data['checkbox'])) {
+				if (! EEM_Checkin::instance()->delete_by_ID($CHK_ID)) {
+					$errors++;
+				}
+			}
+		} else {
+			EE_Error::add_error(
+				esc_html__(
+					'So, something went wrong with the bulk delete because there was no data received for instructions on WHAT to delete!',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$this->_redirect_after_action(false, '', '', $query_args, true);
+		}
+		if ($errors > 0) {
+			EE_Error::add_error(
+				sprintf(__('There were %d records that did not delete successfully', 'event_espresso'), $errors),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		} else {
+			EE_Error::add_success(__('Records were successfully deleted', 'event_espresso'));
+		}
+		$this->_redirect_after_action(false, '', '', $query_args, true);
+	}
 
 
-    /**
-     * Deletes a single EE_Checkin row
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _delete_checkin_row()
-    {
-        $query_args = array(
-            'action'  => 'registration_checkins',
-            'DTT_ID'  => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : 0,
-            '_REG_ID' => isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : 0,
-        );
-        if (! empty($this->_req_data['CHK_ID'])) {
-            if (! EEM_Checkin::instance()->delete_by_ID($this->_req_data['CHK_ID'])) {
-                EE_Error::add_error(
-                    esc_html__('Something went wrong and this check-in record was not deleted', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            } else {
-                EE_Error::add_success(__('Check-In record successfully deleted', 'event_espresso'));
-            }
-        } else {
-            EE_Error::add_error(
-                esc_html__(
-                    'In order to delete a Check-in record, there must be a Check-In ID available. There is not. It is not your fault, there is just a gremlin living in the code',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        $this->_redirect_after_action(false, '', '', $query_args, true);
-    }
+	/**
+	 * Deletes a single EE_Checkin row
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _delete_checkin_row()
+	{
+		$query_args = array(
+			'action'  => 'registration_checkins',
+			'DTT_ID'  => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : 0,
+			'_REG_ID' => isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : 0,
+		);
+		if (! empty($this->_req_data['CHK_ID'])) {
+			if (! EEM_Checkin::instance()->delete_by_ID($this->_req_data['CHK_ID'])) {
+				EE_Error::add_error(
+					esc_html__('Something went wrong and this check-in record was not deleted', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			} else {
+				EE_Error::add_success(__('Check-In record successfully deleted', 'event_espresso'));
+			}
+		} else {
+			EE_Error::add_error(
+				esc_html__(
+					'In order to delete a Check-in record, there must be a Check-In ID available. There is not. It is not your fault, there is just a gremlin living in the code',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		$this->_redirect_after_action(false, '', '', $query_args, true);
+	}
 
 
-    /**
-     *        generates HTML for the Event Registrations List Table
-     *
-     * @access protected
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _event_registrations_list_table()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $this->_admin_page_title .= isset($this->_req_data['event_id'])
-            ? $this->get_action_link_or_button(
-                'new_registration',
-                'add-registrant',
-                array('event_id' => $this->_req_data['event_id']),
-                'add-new-h2',
-                '',
-                false
-            )
-            : '';
-        $checked_in = new CheckinStatusDashicon(EE_Checkin::status_checked_in);
-        $checked_out = new CheckinStatusDashicon(EE_Checkin::status_checked_out);
-        $checked_never = new CheckinStatusDashicon(EE_Checkin::status_checked_never);
-        $legend_items = array(
-            'star-icon'        => array(
-                'class' => 'dashicons dashicons-star-filled lt-blue-icon ee-icon-size-8',
-                'desc'  => esc_html__('This Registrant is the Primary Registrant', 'event_espresso'),
-            ),
-            'checkin'          => array(
-                'class' => $checked_in->cssClasses(),
-                'desc'  => $checked_in->legendLabel(),
-            ),
-            'checkout'         => array(
-                'class' => $checked_out->cssClasses(),
-                'desc'  => $checked_out->legendLabel(),
-            ),
-            'nocheckinrecord'  => array(
-                'class' => $checked_never->cssClasses(),
-                'desc'  => $checked_never->legendLabel(),
-            ),
-            'approved_status'  => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_approved,
-                'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_approved, false, 'sentence'),
-            ),
-            'cancelled_status' => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_cancelled,
-                'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_cancelled, false, 'sentence'),
-            ),
-            'declined_status'  => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_declined,
-                'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_declined, false, 'sentence'),
-            ),
-            'not_approved'     => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_not_approved,
-                'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_not_approved, false, 'sentence'),
-            ),
-            'pending_status'   => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_pending_payment,
-                'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_pending_payment, false, 'sentence'),
-            ),
-            'wait_list'        => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_wait_list,
-                'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_wait_list, false, 'sentence'),
-            ),
-        );
-        $this->_template_args['after_list_table'] = $this->_display_legend($legend_items);
-        $event_id = isset($this->_req_data['event_id']) ? $this->_req_data['event_id'] : null;
-        /** @var EE_Event $event */
-        $event = EEM_Event::instance()->get_one_by_ID($event_id);
-        $this->_template_args['before_list_table'] = $event instanceof EE_Event
-            ? '<h2>' . sprintf(
-                esc_html__('Viewing Registrations for Event: %s', 'event_espresso'),
-                EEM_Event::instance()->get_one_by_ID($event_id)->get('EVT_name')
-            ) . '</h2>'
-            : '';
-        // need to get the number of datetimes on the event and set default datetime_id if there is only one datetime on
-        // the event.
-        $DTT_ID = ! empty($this->_req_data['DTT_ID']) ? absint($this->_req_data['DTT_ID']) : 0;
-        $datetime = null;
-        if ($event instanceof EE_Event) {
-            $datetimes_on_event = $event->datetimes();
-            if (count($datetimes_on_event) === 1) {
-                $datetime = reset($datetimes_on_event);
-            }
-        }
-        $datetime = $datetime instanceof EE_Datetime ? $datetime : EEM_Datetime::instance()->get_one_by_ID($DTT_ID);
-        if ($datetime instanceof EE_Datetime && $this->_template_args['before_list_table'] !== '') {
-            $this->_template_args['before_list_table'] = substr($this->_template_args['before_list_table'], 0, -5);
-            $this->_template_args['before_list_table'] .= ' &nbsp;<span class="drk-grey-text">';
-            $this->_template_args['before_list_table'] .= '<span class="dashicons dashicons-calendar"></span>';
-            $this->_template_args['before_list_table'] .= $datetime->name();
-            $this->_template_args['before_list_table'] .= ' ( ' . $datetime->date_and_time_range() . ' )';
-            $this->_template_args['before_list_table'] .= '</span></h2>';
-        }
-        // if no datetime, then we're on the initial view, so let's give some helpful instructions on what the status
-        // column represents
-        if (! $datetime instanceof EE_Datetime) {
-            $this->_template_args['before_list_table'] .= '<br><p class="description">'
-                                                          . esc_html__(
-                                                              'In this view, the check-in status represents the latest check-in record for the registration in that row.',
-                                                              'event_espresso'
-                                                          )
-                                                          . '</p>';
-        }
-        $this->display_admin_list_table_page_with_no_sidebar();
-    }
+	/**
+	 *        generates HTML for the Event Registrations List Table
+	 *
+	 * @access protected
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _event_registrations_list_table()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$this->_admin_page_title .= isset($this->_req_data['event_id'])
+			? $this->get_action_link_or_button(
+				'new_registration',
+				'add-registrant',
+				array('event_id' => $this->_req_data['event_id']),
+				'add-new-h2',
+				'',
+				false
+			)
+			: '';
+		$checked_in = new CheckinStatusDashicon(EE_Checkin::status_checked_in);
+		$checked_out = new CheckinStatusDashicon(EE_Checkin::status_checked_out);
+		$checked_never = new CheckinStatusDashicon(EE_Checkin::status_checked_never);
+		$legend_items = array(
+			'star-icon'        => array(
+				'class' => 'dashicons dashicons-star-filled lt-blue-icon ee-icon-size-8',
+				'desc'  => esc_html__('This Registrant is the Primary Registrant', 'event_espresso'),
+			),
+			'checkin'          => array(
+				'class' => $checked_in->cssClasses(),
+				'desc'  => $checked_in->legendLabel(),
+			),
+			'checkout'         => array(
+				'class' => $checked_out->cssClasses(),
+				'desc'  => $checked_out->legendLabel(),
+			),
+			'nocheckinrecord'  => array(
+				'class' => $checked_never->cssClasses(),
+				'desc'  => $checked_never->legendLabel(),
+			),
+			'approved_status'  => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_approved,
+				'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_approved, false, 'sentence'),
+			),
+			'cancelled_status' => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_cancelled,
+				'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_cancelled, false, 'sentence'),
+			),
+			'declined_status'  => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_declined,
+				'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_declined, false, 'sentence'),
+			),
+			'not_approved'     => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_not_approved,
+				'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_not_approved, false, 'sentence'),
+			),
+			'pending_status'   => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_pending_payment,
+				'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_pending_payment, false, 'sentence'),
+			),
+			'wait_list'        => array(
+				'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_wait_list,
+				'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_wait_list, false, 'sentence'),
+			),
+		);
+		$this->_template_args['after_list_table'] = $this->_display_legend($legend_items);
+		$event_id = isset($this->_req_data['event_id']) ? $this->_req_data['event_id'] : null;
+		/** @var EE_Event $event */
+		$event = EEM_Event::instance()->get_one_by_ID($event_id);
+		$this->_template_args['before_list_table'] = $event instanceof EE_Event
+			? '<h2>' . sprintf(
+				esc_html__('Viewing Registrations for Event: %s', 'event_espresso'),
+				EEM_Event::instance()->get_one_by_ID($event_id)->get('EVT_name')
+			) . '</h2>'
+			: '';
+		// need to get the number of datetimes on the event and set default datetime_id if there is only one datetime on
+		// the event.
+		$DTT_ID = ! empty($this->_req_data['DTT_ID']) ? absint($this->_req_data['DTT_ID']) : 0;
+		$datetime = null;
+		if ($event instanceof EE_Event) {
+			$datetimes_on_event = $event->datetimes();
+			if (count($datetimes_on_event) === 1) {
+				$datetime = reset($datetimes_on_event);
+			}
+		}
+		$datetime = $datetime instanceof EE_Datetime ? $datetime : EEM_Datetime::instance()->get_one_by_ID($DTT_ID);
+		if ($datetime instanceof EE_Datetime && $this->_template_args['before_list_table'] !== '') {
+			$this->_template_args['before_list_table'] = substr($this->_template_args['before_list_table'], 0, -5);
+			$this->_template_args['before_list_table'] .= ' &nbsp;<span class="drk-grey-text">';
+			$this->_template_args['before_list_table'] .= '<span class="dashicons dashicons-calendar"></span>';
+			$this->_template_args['before_list_table'] .= $datetime->name();
+			$this->_template_args['before_list_table'] .= ' ( ' . $datetime->date_and_time_range() . ' )';
+			$this->_template_args['before_list_table'] .= '</span></h2>';
+		}
+		// if no datetime, then we're on the initial view, so let's give some helpful instructions on what the status
+		// column represents
+		if (! $datetime instanceof EE_Datetime) {
+			$this->_template_args['before_list_table'] .= '<br><p class="description">'
+														  . esc_html__(
+															  'In this view, the check-in status represents the latest check-in record for the registration in that row.',
+															  'event_espresso'
+														  )
+														  . '</p>';
+		}
+		$this->display_admin_list_table_page_with_no_sidebar();
+	}
 
-    /**
-     * Download the registrations check-in report (same as the normal registration report, but with different where
-     * conditions)
-     *
-     * @return void ends the request by a redirect or download
-     */
-    public function _registrations_checkin_report()
-    {
-        $this->_registrations_report_base('_get_checkin_query_params_from_request');
-    }
+	/**
+	 * Download the registrations check-in report (same as the normal registration report, but with different where
+	 * conditions)
+	 *
+	 * @return void ends the request by a redirect or download
+	 */
+	public function _registrations_checkin_report()
+	{
+		$this->_registrations_report_base('_get_checkin_query_params_from_request');
+	}
 
-    /**
-     * Gets the query params from the request, plus adds a where condition for the registration status,
-     * because on the checkin page we only ever want to see approved and pending-approval registrations
-     *
-     * @param array $request
-     * @param int   $per_page
-     * @param bool  $count
-     * @return array
-     * @throws EE_Error
-     */
-    protected function _get_checkin_query_params_from_request(
-        $request,
-        $per_page = 10,
-        $count = false
-    ) {
-        $query_params = $this->_get_registration_query_parameters($request, $per_page, $count);
-        // unlike the regular registrations list table,
-        $status_ids_array = apply_filters(
-            'FHEE__Extend_Registrations_Admin_Page__get_event_attendees__status_ids_array',
-            array(EEM_Registration::status_id_pending_payment, EEM_Registration::status_id_approved)
-        );
-        $query_params[0]['STS_ID'] = array('IN', $status_ids_array);
-        return $query_params;
-    }
+	/**
+	 * Gets the query params from the request, plus adds a where condition for the registration status,
+	 * because on the checkin page we only ever want to see approved and pending-approval registrations
+	 *
+	 * @param array $request
+	 * @param int   $per_page
+	 * @param bool  $count
+	 * @return array
+	 * @throws EE_Error
+	 */
+	protected function _get_checkin_query_params_from_request(
+		$request,
+		$per_page = 10,
+		$count = false
+	) {
+		$query_params = $this->_get_registration_query_parameters($request, $per_page, $count);
+		// unlike the regular registrations list table,
+		$status_ids_array = apply_filters(
+			'FHEE__Extend_Registrations_Admin_Page__get_event_attendees__status_ids_array',
+			array(EEM_Registration::status_id_pending_payment, EEM_Registration::status_id_approved)
+		);
+		$query_params[0]['STS_ID'] = array('IN', $status_ids_array);
+		return $query_params;
+	}
 
 
-    /**
-     * Gets registrations for an event
-     *
-     * @param int    $per_page
-     * @param bool   $count whether to return count or data.
-     * @param bool   $trash
-     * @param string $orderby
-     * @return EE_Registration[]|int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function get_event_attendees($per_page = 10, $count = false, $trash = false, $orderby = 'ATT_fname')
-    {
-        // normalize some request params that get setup by the parent `get_registrations` method.
-        $request = $this->_req_data;
-        $request['orderby'] = ! empty($this->_req_data['orderby']) ? $this->_req_data['orderby'] : $orderby;
-        $request['order'] = ! empty($this->_req_data['order']) ? $this->_req_data['order'] : 'ASC';
-        if ($trash) {
-            $request['status'] = 'trash';
-        }
-        $query_params = $this->_get_checkin_query_params_from_request($request, $per_page, $count);
-        /**
-         * Override the default groupby added by EEM_Base so that sorts with multiple order bys work as expected
-         *
-         * @link https://events.codebasehq.com/projects/event-espresso/tickets/10093
-         * @see https://github.com/eventespresso/event-espresso-core/tree/master/docs/G--Model-System/model-query-params.md
-         *                             or if you have the development copy of EE you can view this at the path:
-         *                             /docs/G--Model-System/model-query-params.md
-         */
-        $query_params['group_by'] = '';
+	/**
+	 * Gets registrations for an event
+	 *
+	 * @param int    $per_page
+	 * @param bool   $count whether to return count or data.
+	 * @param bool   $trash
+	 * @param string $orderby
+	 * @return EE_Registration[]|int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function get_event_attendees($per_page = 10, $count = false, $trash = false, $orderby = 'ATT_fname')
+	{
+		// normalize some request params that get setup by the parent `get_registrations` method.
+		$request = $this->_req_data;
+		$request['orderby'] = ! empty($this->_req_data['orderby']) ? $this->_req_data['orderby'] : $orderby;
+		$request['order'] = ! empty($this->_req_data['order']) ? $this->_req_data['order'] : 'ASC';
+		if ($trash) {
+			$request['status'] = 'trash';
+		}
+		$query_params = $this->_get_checkin_query_params_from_request($request, $per_page, $count);
+		/**
+		 * Override the default groupby added by EEM_Base so that sorts with multiple order bys work as expected
+		 *
+		 * @link https://events.codebasehq.com/projects/event-espresso/tickets/10093
+		 * @see https://github.com/eventespresso/event-espresso-core/tree/master/docs/G--Model-System/model-query-params.md
+		 *                             or if you have the development copy of EE you can view this at the path:
+		 *                             /docs/G--Model-System/model-query-params.md
+		 */
+		$query_params['group_by'] = '';
 
-        return $count
-            ? EEM_Registration::instance()->count($query_params)
-            /** @type EE_Registration[] */
-            : EEM_Registration::instance()->get_all($query_params);
-    }
+		return $count
+			? EEM_Registration::instance()->count($query_params)
+			/** @type EE_Registration[] */
+			: EEM_Registration::instance()->get_all($query_params);
+	}
 }

Spacing +50 added lines, -50 removed lines

@@ -32,10 +32,10 @@ 
     public function __construct($routing = true)
     {
         parent::__construct($routing);
-        if (! defined('REG_CAF_TEMPLATE_PATH')) {
-            define('REG_CAF_TEMPLATE_PATH', EE_CORE_CAF_ADMIN_EXTEND . 'registrations/templates/');
-            define('REG_CAF_ASSETS', EE_CORE_CAF_ADMIN_EXTEND . 'registrations/assets/');
-            define('REG_CAF_ASSETS_URL', EE_CORE_CAF_ADMIN_EXTEND_URL . 'registrations/assets/');
+        if ( ! defined('REG_CAF_TEMPLATE_PATH')) {
+            define('REG_CAF_TEMPLATE_PATH', EE_CORE_CAF_ADMIN_EXTEND.'registrations/templates/');
+            define('REG_CAF_ASSETS', EE_CORE_CAF_ADMIN_EXTEND.'registrations/assets/');
+            define('REG_CAF_ASSETS_URL', EE_CORE_CAF_ADMIN_EXTEND_URL.'registrations/assets/');
         }
     }
 
@@ -45,7 +45,7 @@ 
      */
     protected function _extend_page_config()
     {
-        $this->_admin_base_path = EE_CORE_CAF_ADMIN_EXTEND . 'registrations';
+        $this->_admin_base_path = EE_CORE_CAF_ADMIN_EXTEND.'registrations';
         $reg_id = ! empty($this->_req_data['_REG_ID']) && ! is_array($this->_req_data['_REG_ID'])
             ? $this->_req_data['_REG_ID']
             : 0;
@@ -185,14 +185,14 @@ 
             // enqueue newsletter js
             wp_enqueue_script(
                 'ee-newsletter-trigger',
-                REG_CAF_ASSETS_URL . 'ee-newsletter-trigger.js',
+                REG_CAF_ASSETS_URL.'ee-newsletter-trigger.js',
                 array('ee-dialog'),
                 EVENT_ESPRESSO_VERSION,
                 true
             );
             wp_enqueue_style(
                 'ee-newsletter-trigger-css',
-                REG_CAF_ASSETS_URL . 'ee-newsletter-trigger.css',
+                REG_CAF_ASSETS_URL.'ee-newsletter-trigger.css',
                 array(),
                 EVENT_ESPRESSO_VERSION
             );
@@ -213,7 +213,7 @@ 
     {
         wp_register_script(
             'ee-reg-reports-js',
-            REG_CAF_ASSETS_URL . 'ee-registration-admin-reports.js',
+            REG_CAF_ASSETS_URL.'ee-registration-admin-reports.js',
             array('google-charts'),
             EVENT_ESPRESSO_VERSION,
             true
@@ -299,7 +299,7 @@ 
         $nonce_ref = 'get_newsletter_form_content_nonce';
         $this->_verify_nonce($nonce, $nonce_ref);
         // let's get the mtp for the incoming MTP_ ID
-        if (! isset($this->_req_data['GRP_ID'])) {
+        if ( ! isset($this->_req_data['GRP_ID'])) {
             EE_Error::add_error(
                 esc_html__(
                     'There must be something broken with the js or html structure because the required data for getting a message template group is not present (need an GRP_ID).',
@@ -314,7 +314,7 @@ 
             $this->_return_json();
         }
         $MTPG = EEM_Message_Template_Group::instance()->get_one_by_ID($this->_req_data['GRP_ID']);
-        if (! $MTPG instanceof EE_Message_Template_Group) {
+        if ( ! $MTPG instanceof EE_Message_Template_Group) {
             EE_Error::add_error(
                 sprintf(
                     esc_html__(
@@ -339,12 +339,12 @@ 
             $field = $MTP->get('MTP_template_field');
             if ($field === 'content') {
                 $content = $MTP->get('MTP_content');
-                if (! empty($content['newsletter_content'])) {
+                if ( ! empty($content['newsletter_content'])) {
                     $template_fields['newsletter_content'] = $content['newsletter_content'];
                 }
                 continue;
             }
-            $template_fields[ $MTP->get('MTP_template_field') ] = $MTP->get('MTP_content');
+            $template_fields[$MTP->get('MTP_template_field')] = $MTP->get('MTP_content');
         }
         $this->_template_args['success'] = true;
         $this->_template_args['error'] = false;
@@ -375,7 +375,7 @@ 
      */
     public function add_newsletter_action_buttons(EE_Admin_List_Table $list_table)
     {
-        if (! EE_Registry::instance()->CAP->current_user_can(
+        if ( ! EE_Registry::instance()->CAP->current_user_can(
             'ee_send_message',
             'espresso_registrations_newsletter_selected_send'
         )
@@ -444,17 +444,17 @@ 
                 $field_id = $field === '[NEWSLETTER_CONTENT]'
                     ? 'content'
                     : $field;
-                $field_id = 'batch-message-' . strtolower($field_id);
+                $field_id = 'batch-message-'.strtolower($field_id);
                 $available_shortcodes[] = '<span class="js-shortcode-selection" data-value="'
                                           . $shortcode
-                                          . '" data-linked-input-id="' . $field_id . '">'
+                                          . '" data-linked-input-id="'.$field_id.'">'
                                           . $shortcode
                                           . '</span>';
             }
-            $codes[ $field ] = implode(', ', $available_shortcodes);
+            $codes[$field] = implode(', ', $available_shortcodes);
         }
         $shortcodes = $codes;
-        $form_template = REG_CAF_TEMPLATE_PATH . 'newsletter-send-form.template.php';
+        $form_template = REG_CAF_TEMPLATE_PATH.'newsletter-send-form.template.php';
         $form_template_args = array(
             'form_action'       => admin_url('admin.php?page=espresso_registrations'),
             'form_route'        => 'newsletter_selected_send',
@@ -622,7 +622,7 @@ 
      */
     protected function _registration_reports()
     {
-        $template_path = EE_ADMIN_TEMPLATE . 'admin_reports.template.php';
+        $template_path = EE_ADMIN_TEMPLATE.'admin_reports.template.php';
         $this->_template_args['admin_page_content'] = EEH_Template::display_template(
             $template_path,
             $this->_reports_template_data,
@@ -677,7 +677,7 @@ 
             array_unshift($regs, $column_titles);
             // setup the date range.
             $DateTimeZone = new DateTimeZone(EEH_DTT_Helper::get_timezone());
-            $beginning_date = new DateTime("now " . $period, $DateTimeZone);
+            $beginning_date = new DateTime("now ".$period, $DateTimeZone);
             $ending_date = new DateTime("now", $DateTimeZone);
             $subtitle = sprintf(
                 _x('For the period: %1$s to %2$s', 'Used to give date range', 'event_espresso'),
@@ -697,7 +697,7 @@ 
                     '%sThere are currently no registration records in the last month for this report.%s',
                     'event_espresso'
                 ),
-                '<h2>' . $report_title . '</h2><p>',
+                '<h2>'.$report_title.'</h2><p>',
                 '</p>'
             ),
         );
@@ -750,7 +750,7 @@ 
             array_unshift($regs, $column_titles);
             // setup the date range.
             $DateTimeZone = new DateTimeZone(EEH_DTT_Helper::get_timezone());
-            $beginning_date = new DateTime("now " . $period, $DateTimeZone);
+            $beginning_date = new DateTime("now ".$period, $DateTimeZone);
             $ending_date = new DateTime("now", $DateTimeZone);
             $subtitle = sprintf(
                 _x('For the period: %1$s to %2$s', 'Used to give date range', 'event_espresso'),
@@ -770,7 +770,7 @@ 
                     '%sThere are currently no registration records in the last month for this report.%s',
                     'event_espresso'
                 ),
-                '<h2>' . $report_title . '</h2><p>',
+                '<h2>'.$report_title.'</h2><p>',
                 '</p>'
             ),
         );
@@ -796,7 +796,7 @@ 
         $reg_id = isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : null;
         /** @var EE_Registration $registration */
         $registration = EEM_Registration::instance()->get_one_by_ID($reg_id);
-        if (! $registration instanceof EE_Registration) {
+        if ( ! $registration instanceof EE_Registration) {
             throw new EE_Error(
                 sprintf(
                     esc_html__('An error occurred. There is no registration with ID (%d)', 'event_espresso'),
@@ -831,7 +831,7 @@ 
         if ($datetime instanceof EE_Datetime) {
             $datetime_label = $datetime->get_dtt_display_name(true);
             $datetime_label .= ! empty($datetime_label)
-                ? ' (' . $datetime->get_dtt_display_name() . ')'
+                ? ' ('.$datetime->get_dtt_display_name().')'
                 : $datetime->get_dtt_display_name();
         }
         $datetime_link = ! empty($dtt_id) && $registration instanceof EE_Registration
@@ -845,7 +845,7 @@ 
             )
             : '';
         $datetime_link = ! empty($datetime_link)
-            ? '<a href="' . $datetime_link . '">'
+            ? '<a href="'.$datetime_link.'">'
               . '<span id="checkin-dtt">'
               . $datetime_label
               . '</span></a>'
@@ -857,8 +857,8 @@ 
             ? $attendee->get_admin_details_link()
             : '';
         $attendee_link = ! empty($attendee_link)
-            ? '<a href="' . $attendee->get_admin_details_link() . '"'
-              . ' title="' . esc_html__('Click for attendee details', 'event_espresso') . '">'
+            ? '<a href="'.$attendee->get_admin_details_link().'"'
+              . ' title="'.esc_html__('Click for attendee details', 'event_espresso').'">'
               . '<span id="checkin-attendee-name">'
               . $attendee_name
               . '</span></a>'
@@ -867,25 +867,25 @@ 
             ? $registration->event()->get_admin_details_link()
             : '';
         $event_link = ! empty($event_link)
-            ? '<a href="' . $event_link . '"'
-              . ' title="' . esc_html__('Click here to edit event.', 'event_espresso') . '">'
+            ? '<a href="'.$event_link.'"'
+              . ' title="'.esc_html__('Click here to edit event.', 'event_espresso').'">'
               . '<span id="checkin-event-name">'
               . $registration->event_name()
               . '</span>'
               . '</a>'
             : '';
         $this->_template_args['before_list_table'] = ! empty($reg_id) && ! empty($dtt_id)
-            ? '<h2>' . sprintf(
+            ? '<h2>'.sprintf(
                 esc_html__('Displaying check in records for %1$s for %2$s at the event, %3$s', 'event_espresso'),
                 $attendee_link,
                 $datetime_link,
                 $event_link
-            ) . '</h2>'
+            ).'</h2>'
             : '';
         $this->_template_args['list_table_hidden_fields'] = ! empty($reg_id)
-            ? '<input type="hidden" name="_REG_ID" value="' . $reg_id . '">' : '';
+            ? '<input type="hidden" name="_REG_ID" value="'.$reg_id.'">' : '';
         $this->_template_args['list_table_hidden_fields'] .= ! empty($dtt_id)
-            ? '<input type="hidden" name="DTT_ID" value="' . $dtt_id . '">' : '';
+            ? '<input type="hidden" name="DTT_ID" value="'.$dtt_id.'">' : '';
         $this->display_admin_list_table_page_with_no_sidebar();
     }
 
@@ -902,7 +902,7 @@ 
     public function toggle_checkin_status()
     {
         // first make sure we have the necessary data
-        if (! isset($this->_req_data['_regid'])) {
+        if ( ! isset($this->_req_data['_regid'])) {
             EE_Error::add_error(
                 esc_html__(
                     'There must be something broken with the html structure because the required data for toggling the Check-in status is not being sent via ajax',
@@ -924,7 +924,7 @@ 
         // beautiful! Made it this far so let's get the status.
         $new_status = new CheckinStatusDashicon($this->_toggle_checkin_status());
         // setup new class to return via ajax
-        $this->_template_args['admin_page_content'] = 'clickable trigger-checkin ' . $new_status->cssClasses();
+        $this->_template_args['admin_page_content'] = 'clickable trigger-checkin '.$new_status->cssClasses();
         $this->_template_args['success'] = true;
         $this->_return_json();
     }
@@ -950,7 +950,7 @@ 
         );
         $new_status = false;
         // bulk action check in toggle
-        if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
+        if ( ! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
             // cycle thru checkboxes
             while (list($REG_ID, $value) = each($this->_req_data['checkbox'])) {
                 $DTT_ID = isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : null;
@@ -1020,9 +1020,9 @@ 
             '_REG_ID' => isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : 0,
         );
         $errors = 0;
-        if (! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
+        if ( ! empty($this->_req_data['checkbox']) && is_array($this->_req_data['checkbox'])) {
             while (list($CHK_ID, $value) = each($this->_req_data['checkbox'])) {
-                if (! EEM_Checkin::instance()->delete_by_ID($CHK_ID)) {
+                if ( ! EEM_Checkin::instance()->delete_by_ID($CHK_ID)) {
                     $errors++;
                 }
             }
@@ -1068,8 +1068,8 @@ 
             'DTT_ID'  => isset($this->_req_data['DTT_ID']) ? $this->_req_data['DTT_ID'] : 0,
             '_REG_ID' => isset($this->_req_data['_REG_ID']) ? $this->_req_data['_REG_ID'] : 0,
         );
-        if (! empty($this->_req_data['CHK_ID'])) {
-            if (! EEM_Checkin::instance()->delete_by_ID($this->_req_data['CHK_ID'])) {
+        if ( ! empty($this->_req_data['CHK_ID'])) {
+            if ( ! EEM_Checkin::instance()->delete_by_ID($this->_req_data['CHK_ID'])) {
                 EE_Error::add_error(
                     esc_html__('Something went wrong and this check-in record was not deleted', 'event_espresso'),
                     __FILE__,
@@ -1138,27 +1138,27 @@ 
                 'desc'  => $checked_never->legendLabel(),
             ),
             'approved_status'  => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_approved,
+                'class' => 'ee-status-legend ee-status-legend-'.EEM_Registration::status_id_approved,
                 'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_approved, false, 'sentence'),
             ),
             'cancelled_status' => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_cancelled,
+                'class' => 'ee-status-legend ee-status-legend-'.EEM_Registration::status_id_cancelled,
                 'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_cancelled, false, 'sentence'),
             ),
             'declined_status'  => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_declined,
+                'class' => 'ee-status-legend ee-status-legend-'.EEM_Registration::status_id_declined,
                 'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_declined, false, 'sentence'),
             ),
             'not_approved'     => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_not_approved,
+                'class' => 'ee-status-legend ee-status-legend-'.EEM_Registration::status_id_not_approved,
                 'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_not_approved, false, 'sentence'),
             ),
             'pending_status'   => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_pending_payment,
+                'class' => 'ee-status-legend ee-status-legend-'.EEM_Registration::status_id_pending_payment,
                 'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_pending_payment, false, 'sentence'),
             ),
             'wait_list'        => array(
-                'class' => 'ee-status-legend ee-status-legend-' . EEM_Registration::status_id_wait_list,
+                'class' => 'ee-status-legend ee-status-legend-'.EEM_Registration::status_id_wait_list,
                 'desc'  => EEH_Template::pretty_status(EEM_Registration::status_id_wait_list, false, 'sentence'),
             ),
         );
@@ -1167,10 +1167,10 @@ 
         /** @var EE_Event $event */
         $event = EEM_Event::instance()->get_one_by_ID($event_id);
         $this->_template_args['before_list_table'] = $event instanceof EE_Event
-            ? '<h2>' . sprintf(
+            ? '<h2>'.sprintf(
                 esc_html__('Viewing Registrations for Event: %s', 'event_espresso'),
                 EEM_Event::instance()->get_one_by_ID($event_id)->get('EVT_name')
-            ) . '</h2>'
+            ).'</h2>'
             : '';
         // need to get the number of datetimes on the event and set default datetime_id if there is only one datetime on
         // the event.
@@ -1188,12 +1188,12 @@ 
             $this->_template_args['before_list_table'] .= ' &nbsp;<span class="drk-grey-text">';
             $this->_template_args['before_list_table'] .= '<span class="dashicons dashicons-calendar"></span>';
             $this->_template_args['before_list_table'] .= $datetime->name();
-            $this->_template_args['before_list_table'] .= ' ( ' . $datetime->date_and_time_range() . ' )';
+            $this->_template_args['before_list_table'] .= ' ( '.$datetime->date_and_time_range().' )';
             $this->_template_args['before_list_table'] .= '</span></h2>';
         }
         // if no datetime, then we're on the initial view, so let's give some helpful instructions on what the status
         // column represents
-        if (! $datetime instanceof EE_Datetime) {
+        if ( ! $datetime instanceof EE_Datetime) {
             $this->_template_args['before_list_table'] .= '<br><p class="description">'
                                                           . esc_html__(
                                                               'In this view, the check-in status represents the latest check-in record for the registration in that row.',

core/libraries/shortcodes/EE_Event_Shortcodes.lib.php

Spacing +10 added lines, -10 removed lines

@@ -134,7 +134,7 @@ 
 
 
         // If there is no event objecdt by now then get out.
-        if (! $this->_event instanceof EE_Event) {
+        if ( ! $this->_event instanceof EE_Event) {
             return '';
         }
 
@@ -187,11 +187,11 @@ 
                 $image = $this->_event->feature_image_url(array(600, 300));
                 // @todo: eventually we should make this an attribute shortcode so that em can send along what size they want returned.
                 return ! empty($image)
-                    ? '<img src="' . $image . '" alt="'
+                    ? '<img src="'.$image.'" alt="'
                       . sprintf(
                           esc_attr__('%s Feature Image', 'event_espresso'),
                           $this->_event->get('EVT_name')
-                      ) . '" />'
+                      ).'" />'
                     : '';
                 break;
 
@@ -251,7 +251,7 @@ 
             // Add a filter to allow all instances of EVENT_META_* to run through do_shortcode, default to false.
             // Check if a do_shortcode attribute was set to true and if so run $event_meta through that function.
             if (apply_filters('FHEE__EventEspresso_core_libraries_shortcodes_EE_Event_Shortcodes___parser__event_meta_do_shortcode', false)
-                || !empty($attrs['do_shortcode']) && filter_var($attrs['do_shortcode'], FILTER_VALIDATE_BOOLEAN)
+                || ! empty($attrs['do_shortcode']) && filter_var($attrs['do_shortcode'], FILTER_VALIDATE_BOOLEAN)
             ) {
                 return do_shortcode($event_meta);
             }
@@ -269,11 +269,11 @@ 
 
         if (strpos($shortcode, '[EVENT_IMAGE_*') !== false) {
             $attrs = $this->_get_shortcode_attrs($shortcode);
-            $width = empty($attrs['width']) ? '' : ' width="' . $attrs['width'] . '"';
-            $height = empty($attrs['height']) ? '' : ' height="' . $attrs['height'] . '"';
+            $width = empty($attrs['width']) ? '' : ' width="'.$attrs['width'].'"';
+            $height = empty($attrs['height']) ? '' : ' height="'.$attrs['height'].'"';
 
             // Size may be set to a string such as 'tumbnail' or "width, height" eg - '200,200'
-            if (! empty($attrs['size'])) {
+            if ( ! empty($attrs['size'])) {
                 $size = explode(',', $attrs['size']);
                 if (count($size) === 1) {
                     $size = $size[0];
@@ -285,11 +285,11 @@ 
             $image = $this->_event->feature_image_url($size);
 
             return ! empty($image)
-                ? '<img src="' . $image . '" alt="'
+                ? '<img src="'.$image.'" alt="'
                   . sprintf(
                       esc_attr__('%s Feature Image', 'event_espresso'),
                       $this->_event->get('EVT_name')
-                  ) . '"' . $width . $height . '/>'
+                  ).'"'.$width.$height.'/>'
                 : '';
         }
 
@@ -308,6 +308,6 @@ 
     {
         $url = get_permalink($event->ID());
 
-        return $full_link ? '<a href="' . $url . '">' . $event->get('EVT_name') . '</a>' : $url;
+        return $full_link ? '<a href="'.$url.'">'.$event->get('EVT_name').'</a>' : $url;
     }
 }

Indentation +292 added lines, -292 removed lines

@@ -19,296 +19,296 @@
 {
 
 
-    /**
-     * Will hold the EE_Event if available
-     *
-     * @var EE_Event
-     */
-    protected $_event;
-
-
-    public function __construct()
-    {
-        parent::__construct();
-    }
-
-
-    protected function _init_props()
-    {
-        $this->label = __('Event Shortcodes', 'event_espresso');
-        $this->description = __('All shortcodes specific to event related data', 'event_espresso');
-        $this->_shortcodes = array(
-            '[EVENT_ID]'                              => __(
-                'Will be replaced by the event ID of an event',
-                'event_espresso'
-            ),
-            '[EVENT]'                                 => __('The name of the event', 'event_espresso'),
-            '[EVENT_NAME]'                            => __(
-                "This also can be used for the name of the event",
-                'event_espresso'
-            ),
-            '[EVENT_PHONE]'                           => __(
-                'The phone number for the event (usually an info number)',
-                'event_espresso'
-            ),
-            '[EVENT_DESCRIPTION]'                     => __('The description of the event', 'event_espresso'),
-            '[EVENT_EXCERPT]'                         => __(
-                'This gets parsed to the value for the excerpt field in the event or blank if there is no excerpt.',
-                'event_espresso'
-            ),
-            '[EVENT_LINK]'                            => __('A link associated with the event', 'event_espresso'),
-            '[EVENT_URL]'                             => __(
-                'A link to the event set up on the host site.',
-                'event_espresso'
-            ),
-            '[VIRTUAL_URL]'                           => __(
-                'What was used for the "URL of Event" field in the Venue settings',
-                'event_espresso'
-            ),
-            '[VIRTUAL_PHONE]'                         => __(
-                'An alternate phone number for the event. Typically used as a "call-in" number',
-                'event_espresso'
-            ),
-            '[EVENT_IMAGE]'                           => __(
-                'This will parse to the Feature image for the event.',
-                'event_espresso'
-            ),
-            '[EVENT_IMAGE_*]'                         => sprintf(
-                __(
-                    'This will parse to the Feature image for the event, %1$ssize%2$s can be set to determine the size of the image loaded by the shortcode. The %1$swidth%2$s and/or %1$sheight%2$s can also be set to determine the width and height of the image when output. By default the shortcode will load the %1$sthumbnail%2$s image size.',
-                    'event_espresso'
-                ),
-                '<code>',
-                '</code>'
-            ),
-            '[EVENT_TOTAL_AVAILABLE_SPACES_*]'        => sprintf(
-                __(
-                    'This will parse to the total available spaces for an event. Calculating total spaces is approximate because it is dependent on the complexity of limits on your event.  There are two methods of calculation (which can be indicated by the %1$smethod%2$s param on the shortcode).  %1$scurrent%2$s which will do a more accurate calculation of total available spaces based on current sales, and %1$sfull%2$s which will be the maximum total available spaces that is on the event in optimal conditions. The shortcode will default to current.',
-                    'event_espresso'
-                ),
-                '<code>',
-                '</code>'
-            ),
-            '[EVENT_TOTAL_SPOTS_TAKEN]'               => __(
-                'This shortcode will parse to the output the total approved registrations for this event',
-                'event_espresso'
-            ),
-            '[EVENT_FACEBOOK_URL]'                    => __(
-                'This will return the Facebook URL for the event if you have it set via custom field in your event, otherwise it will use the Facebook URL set in "Your Organization Settings". To set the facebook url in your event, add a custom field with the key as <code>event_facebook</code> and the value as your facebook url.',
-                'event_espresso'
-            ),
-            '[EVENT_TWITTER_URL]'                     => __(
-                'This will return the Twitter URL for the event if you have it set via custom field in your event, otherwise it will use the Twitter URL set in "Your Organization Settings". To set the facebook url in your event, add a custom field with the key as <code>event_twitter</code> and the value as your facebook url',
-                'event_espresso'
-            ),
-            '[EVENT_META_*]'                          => sprintf(
-                __(
-                    'This is a special dynamic shortcode. After the "*", add the exact name for your custom field, if there is a value set for that custom field within the event then it will be output in place of this shortcode. If you use shortcodes within your custom fields set %1$sdo_shortcode=true%2$s at the end of the shortcode to run the value through the do_shortcode function. ',
-                    'event_espresso'
-                ),
-                '<code>',
-                '</code>'
-            ),
-            '[REGISTRATION_LIST_TABLE_FOR_EVENT_URL]' => __(
-                'This parses to the url for the registration list table filtered by registrations for this event.',
-                'event_espresso'
-            ),
-        );
-    }
-
-
-    protected function _parser($shortcode)
-    {
-
-
-        $this->_event = $this->_data instanceof EE_Event ? $this->_data : null;
-
-        // if no event, then let's see if there is a reg_obj.  If there IS, then we'll try and grab the event from the reg_obj instead.
-        if (empty($this->_event)) {
-            $aee = $this->_data instanceof EE_Messages_Addressee ? $this->_data : null;
-            $aee = $this->_extra_data instanceof EE_Messages_Addressee ? $this->_extra_data : $aee;
-
-            $this->_event = $aee instanceof EE_Messages_Addressee && $aee->reg_obj instanceof EE_Registration
-                ? $aee->reg_obj->event() : null;
-        }
-
-
-        // If there is no event objecdt by now then get out.
-        if (! $this->_event instanceof EE_Event) {
-            return '';
-        }
-
-        switch ($shortcode) {
-            case '[EVENT_ID]':
-                return $this->_event->ID();
-                break;
-
-            case '[EVENT]':
-            case '[EVENT_NAME]':
-                return $this->_event->get('EVT_name');
-                break;
-
-            case '[EVENT_PHONE]':
-                return $this->_event->get('EVT_phone');
-                break;
-
-            case '[EVENT_DESCRIPTION]':
-                return $this->_event->get('EVT_desc');
-                break;
-
-            case '[EVENT_EXCERPT]':
-                return $this->_event->get('EVT_short_desc');
-                break;
-
-            case '[EVENT_LINK]':
-                return $this->_get_event_link($this->_event);
-                break;
-
-            case '[EVENT_URL]':
-                return $this->_get_event_link($this->_event, false);
-                break;
-
-            case '[VIRTUAL_URL]':
-                $venue = $this->_event->get_first_related('Venue');
-                if (empty($venue)) {
-                    return '';
-                }
-                return $venue->get('VNU_virtual_url');
-
-            case '[VIRTUAL_PHONE]':
-                $venue = $this->_event->get_first_related('Venue');
-                if (empty($venue)) {
-                    return '';
-                }
-                return $venue->get('VNU_virtual_phone');
-                break;
-
-            case '[EVENT_IMAGE]':
-                $image = $this->_event->feature_image_url(array(600, 300));
-                // @todo: eventually we should make this an attribute shortcode so that em can send along what size they want returned.
-                return ! empty($image)
-                    ? '<img src="' . $image . '" alt="'
-                      . sprintf(
-                          esc_attr__('%s Feature Image', 'event_espresso'),
-                          $this->_event->get('EVT_name')
-                      ) . '" />'
-                    : '';
-                break;
-
-            case '[EVENT_FACEBOOK_URL]':
-                $facebook_url = $this->_event->get_post_meta('event_facebook', true);
-                return empty($facebook_url) ? EE_Registry::instance()->CFG->organization->get_pretty('facebook')
-                    : $facebook_url;
-                break;
-
-            case '[EVENT_TWITTER_URL]':
-                $twitter_url = $this->_event->get_post_meta('event_twitter', true);
-                return empty($twitter_url) ? EE_Registry::instance()->CFG->organization->get_pretty('twitter')
-                    : $twitter_url;
-                break;
-
-            case '[EVENT_AUTHOR_EMAIL]':
-                $author_id = $this->_event->get('EVT_wp_user');
-                $user_data = get_userdata((int) $author_id);
-                return $user_data->user_email;
-                break;
-
-            case '[EVENT_TOTAL_SPOTS_TAKEN]':
-                return EEM_Registration::instance()->count(
-                    array(array('EVT_ID' => $this->_event->ID(), 'STS_ID' => EEM_Registration::status_id_approved)),
-                    'REG_ID',
-                    true
-                );
-                break;
-
-            case '[REGISTRATION_LIST_TABLE_FOR_EVENT_URL]':
-                return EEH_URL::add_query_args_and_nonce(
-                    array(
-                        'event_id' => $this->_event->ID(),
-                        'page'     => 'espresso_registrations',
-                        'action'   => 'default',
-                    ),
-                    admin_url('admin.php'),
-                    true
-                );
-                break;
-        }
-
-        if (strpos($shortcode, '[EVENT_META_*') !== false) {
-            // Strip the shortcode itself from $shortcode leaving any attributes set.
-            // Removing the * is correct here as _* is used to indiciate a dynamic shortcode.
-            $shortcode = str_replace('[EVENT_META_*', '', $shortcode);
-            $shortcode = trim(str_replace(']', '', $shortcode));
-            // Get any attributes set on this shortcode.
-            $attrs = $this->_get_shortcode_attrs($shortcode);
-            // The meta_key set on the shortcode should always be the first value in the array.
-            $meta_key = $attrs[0];
-            // Pull the meta value from the event post.
-            $event_meta = $this->_event->get_post_meta($meta_key, true);
-            // If we have no event_meta, just return an empty string.
-            if (empty($event_meta)) {
-                return '';
-            }
-            // Add a filter to allow all instances of EVENT_META_* to run through do_shortcode, default to false.
-            // Check if a do_shortcode attribute was set to true and if so run $event_meta through that function.
-            if (apply_filters('FHEE__EventEspresso_core_libraries_shortcodes_EE_Event_Shortcodes___parser__event_meta_do_shortcode', false)
-                || !empty($attrs['do_shortcode']) && filter_var($attrs['do_shortcode'], FILTER_VALIDATE_BOOLEAN)
-            ) {
-                return do_shortcode($event_meta);
-            }
-            // Still here? We just need to return the event_meta value as is.
-            return $event_meta;
-        }
-
-        if (strpos($shortcode, '[EVENT_TOTAL_AVAILABLE_SPACES_*') !== false) {
-            $attrs = $this->_get_shortcode_attrs($shortcode);
-            $method = empty($attrs['method']) ? 'current' : $attrs['method'];
-            $method = $method === 'current';
-            $available = $this->_event->total_available_spaces($method);
-            return $available === EE_INF ? '&infin;' : $available;
-        }
-
-        if (strpos($shortcode, '[EVENT_IMAGE_*') !== false) {
-            $attrs = $this->_get_shortcode_attrs($shortcode);
-            $width = empty($attrs['width']) ? '' : ' width="' . $attrs['width'] . '"';
-            $height = empty($attrs['height']) ? '' : ' height="' . $attrs['height'] . '"';
-
-            // Size may be set to a string such as 'tumbnail' or "width, height" eg - '200,200'
-            if (! empty($attrs['size'])) {
-                $size = explode(',', $attrs['size']);
-                if (count($size) === 1) {
-                    $size = $size[0];
-                }
-            } else {
-                $size = 'thumbnail';
-            }
-
-            $image = $this->_event->feature_image_url($size);
-
-            return ! empty($image)
-                ? '<img src="' . $image . '" alt="'
-                  . sprintf(
-                      esc_attr__('%s Feature Image', 'event_espresso'),
-                      $this->_event->get('EVT_name')
-                  ) . '"' . $width . $height . '/>'
-                : '';
-        }
-
-        return '';
-    }
-
-
-    /**
-     * returns the link to the event
-     *
-     * @param  boolean $full_link if TRUE (default) we return the html for the name of the event linked to the event.
-     *                            Otherwise we just return the url of the event.
-     * @return string
-     */
-    private function _get_event_link($event, $full_link = true)
-    {
-        $url = get_permalink($event->ID());
-
-        return $full_link ? '<a href="' . $url . '">' . $event->get('EVT_name') . '</a>' : $url;
-    }
+	/**
+	 * Will hold the EE_Event if available
+	 *
+	 * @var EE_Event
+	 */
+	protected $_event;
+
+
+	public function __construct()
+	{
+		parent::__construct();
+	}
+
+
+	protected function _init_props()
+	{
+		$this->label = __('Event Shortcodes', 'event_espresso');
+		$this->description = __('All shortcodes specific to event related data', 'event_espresso');
+		$this->_shortcodes = array(
+			'[EVENT_ID]'                              => __(
+				'Will be replaced by the event ID of an event',
+				'event_espresso'
+			),
+			'[EVENT]'                                 => __('The name of the event', 'event_espresso'),
+			'[EVENT_NAME]'                            => __(
+				"This also can be used for the name of the event",
+				'event_espresso'
+			),
+			'[EVENT_PHONE]'                           => __(
+				'The phone number for the event (usually an info number)',
+				'event_espresso'
+			),
+			'[EVENT_DESCRIPTION]'                     => __('The description of the event', 'event_espresso'),
+			'[EVENT_EXCERPT]'                         => __(
+				'This gets parsed to the value for the excerpt field in the event or blank if there is no excerpt.',
+				'event_espresso'
+			),
+			'[EVENT_LINK]'                            => __('A link associated with the event', 'event_espresso'),
+			'[EVENT_URL]'                             => __(
+				'A link to the event set up on the host site.',
+				'event_espresso'
+			),
+			'[VIRTUAL_URL]'                           => __(
+				'What was used for the "URL of Event" field in the Venue settings',
+				'event_espresso'
+			),
+			'[VIRTUAL_PHONE]'                         => __(
+				'An alternate phone number for the event. Typically used as a "call-in" number',
+				'event_espresso'
+			),
+			'[EVENT_IMAGE]'                           => __(
+				'This will parse to the Feature image for the event.',
+				'event_espresso'
+			),
+			'[EVENT_IMAGE_*]'                         => sprintf(
+				__(
+					'This will parse to the Feature image for the event, %1$ssize%2$s can be set to determine the size of the image loaded by the shortcode. The %1$swidth%2$s and/or %1$sheight%2$s can also be set to determine the width and height of the image when output. By default the shortcode will load the %1$sthumbnail%2$s image size.',
+					'event_espresso'
+				),
+				'<code>',
+				'</code>'
+			),
+			'[EVENT_TOTAL_AVAILABLE_SPACES_*]'        => sprintf(
+				__(
+					'This will parse to the total available spaces for an event. Calculating total spaces is approximate because it is dependent on the complexity of limits on your event.  There are two methods of calculation (which can be indicated by the %1$smethod%2$s param on the shortcode).  %1$scurrent%2$s which will do a more accurate calculation of total available spaces based on current sales, and %1$sfull%2$s which will be the maximum total available spaces that is on the event in optimal conditions. The shortcode will default to current.',
+					'event_espresso'
+				),
+				'<code>',
+				'</code>'
+			),
+			'[EVENT_TOTAL_SPOTS_TAKEN]'               => __(
+				'This shortcode will parse to the output the total approved registrations for this event',
+				'event_espresso'
+			),
+			'[EVENT_FACEBOOK_URL]'                    => __(
+				'This will return the Facebook URL for the event if you have it set via custom field in your event, otherwise it will use the Facebook URL set in "Your Organization Settings". To set the facebook url in your event, add a custom field with the key as <code>event_facebook</code> and the value as your facebook url.',
+				'event_espresso'
+			),
+			'[EVENT_TWITTER_URL]'                     => __(
+				'This will return the Twitter URL for the event if you have it set via custom field in your event, otherwise it will use the Twitter URL set in "Your Organization Settings". To set the facebook url in your event, add a custom field with the key as <code>event_twitter</code> and the value as your facebook url',
+				'event_espresso'
+			),
+			'[EVENT_META_*]'                          => sprintf(
+				__(
+					'This is a special dynamic shortcode. After the "*", add the exact name for your custom field, if there is a value set for that custom field within the event then it will be output in place of this shortcode. If you use shortcodes within your custom fields set %1$sdo_shortcode=true%2$s at the end of the shortcode to run the value through the do_shortcode function. ',
+					'event_espresso'
+				),
+				'<code>',
+				'</code>'
+			),
+			'[REGISTRATION_LIST_TABLE_FOR_EVENT_URL]' => __(
+				'This parses to the url for the registration list table filtered by registrations for this event.',
+				'event_espresso'
+			),
+		);
+	}
+
+
+	protected function _parser($shortcode)
+	{
+
+
+		$this->_event = $this->_data instanceof EE_Event ? $this->_data : null;
+
+		// if no event, then let's see if there is a reg_obj.  If there IS, then we'll try and grab the event from the reg_obj instead.
+		if (empty($this->_event)) {
+			$aee = $this->_data instanceof EE_Messages_Addressee ? $this->_data : null;
+			$aee = $this->_extra_data instanceof EE_Messages_Addressee ? $this->_extra_data : $aee;
+
+			$this->_event = $aee instanceof EE_Messages_Addressee && $aee->reg_obj instanceof EE_Registration
+				? $aee->reg_obj->event() : null;
+		}
+
+
+		// If there is no event objecdt by now then get out.
+		if (! $this->_event instanceof EE_Event) {
+			return '';
+		}
+
+		switch ($shortcode) {
+			case '[EVENT_ID]':
+				return $this->_event->ID();
+				break;
+
+			case '[EVENT]':
+			case '[EVENT_NAME]':
+				return $this->_event->get('EVT_name');
+				break;
+
+			case '[EVENT_PHONE]':
+				return $this->_event->get('EVT_phone');
+				break;
+
+			case '[EVENT_DESCRIPTION]':
+				return $this->_event->get('EVT_desc');
+				break;
+
+			case '[EVENT_EXCERPT]':
+				return $this->_event->get('EVT_short_desc');
+				break;
+
+			case '[EVENT_LINK]':
+				return $this->_get_event_link($this->_event);
+				break;
+
+			case '[EVENT_URL]':
+				return $this->_get_event_link($this->_event, false);
+				break;
+
+			case '[VIRTUAL_URL]':
+				$venue = $this->_event->get_first_related('Venue');
+				if (empty($venue)) {
+					return '';
+				}
+				return $venue->get('VNU_virtual_url');
+
+			case '[VIRTUAL_PHONE]':
+				$venue = $this->_event->get_first_related('Venue');
+				if (empty($venue)) {
+					return '';
+				}
+				return $venue->get('VNU_virtual_phone');
+				break;
+
+			case '[EVENT_IMAGE]':
+				$image = $this->_event->feature_image_url(array(600, 300));
+				// @todo: eventually we should make this an attribute shortcode so that em can send along what size they want returned.
+				return ! empty($image)
+					? '<img src="' . $image . '" alt="'
+					  . sprintf(
+						  esc_attr__('%s Feature Image', 'event_espresso'),
+						  $this->_event->get('EVT_name')
+					  ) . '" />'
+					: '';
+				break;
+
+			case '[EVENT_FACEBOOK_URL]':
+				$facebook_url = $this->_event->get_post_meta('event_facebook', true);
+				return empty($facebook_url) ? EE_Registry::instance()->CFG->organization->get_pretty('facebook')
+					: $facebook_url;
+				break;
+
+			case '[EVENT_TWITTER_URL]':
+				$twitter_url = $this->_event->get_post_meta('event_twitter', true);
+				return empty($twitter_url) ? EE_Registry::instance()->CFG->organization->get_pretty('twitter')
+					: $twitter_url;
+				break;
+
+			case '[EVENT_AUTHOR_EMAIL]':
+				$author_id = $this->_event->get('EVT_wp_user');
+				$user_data = get_userdata((int) $author_id);
+				return $user_data->user_email;
+				break;
+
+			case '[EVENT_TOTAL_SPOTS_TAKEN]':
+				return EEM_Registration::instance()->count(
+					array(array('EVT_ID' => $this->_event->ID(), 'STS_ID' => EEM_Registration::status_id_approved)),
+					'REG_ID',
+					true
+				);
+				break;
+
+			case '[REGISTRATION_LIST_TABLE_FOR_EVENT_URL]':
+				return EEH_URL::add_query_args_and_nonce(
+					array(
+						'event_id' => $this->_event->ID(),
+						'page'     => 'espresso_registrations',
+						'action'   => 'default',
+					),
+					admin_url('admin.php'),
+					true
+				);
+				break;
+		}
+
+		if (strpos($shortcode, '[EVENT_META_*') !== false) {
+			// Strip the shortcode itself from $shortcode leaving any attributes set.
+			// Removing the * is correct here as _* is used to indiciate a dynamic shortcode.
+			$shortcode = str_replace('[EVENT_META_*', '', $shortcode);
+			$shortcode = trim(str_replace(']', '', $shortcode));
+			// Get any attributes set on this shortcode.
+			$attrs = $this->_get_shortcode_attrs($shortcode);
+			// The meta_key set on the shortcode should always be the first value in the array.
+			$meta_key = $attrs[0];
+			// Pull the meta value from the event post.
+			$event_meta = $this->_event->get_post_meta($meta_key, true);
+			// If we have no event_meta, just return an empty string.
+			if (empty($event_meta)) {
+				return '';
+			}
+			// Add a filter to allow all instances of EVENT_META_* to run through do_shortcode, default to false.
+			// Check if a do_shortcode attribute was set to true and if so run $event_meta through that function.
+			if (apply_filters('FHEE__EventEspresso_core_libraries_shortcodes_EE_Event_Shortcodes___parser__event_meta_do_shortcode', false)
+				|| !empty($attrs['do_shortcode']) && filter_var($attrs['do_shortcode'], FILTER_VALIDATE_BOOLEAN)
+			) {
+				return do_shortcode($event_meta);
+			}
+			// Still here? We just need to return the event_meta value as is.
+			return $event_meta;
+		}
+
+		if (strpos($shortcode, '[EVENT_TOTAL_AVAILABLE_SPACES_*') !== false) {
+			$attrs = $this->_get_shortcode_attrs($shortcode);
+			$method = empty($attrs['method']) ? 'current' : $attrs['method'];
+			$method = $method === 'current';
+			$available = $this->_event->total_available_spaces($method);
+			return $available === EE_INF ? '&infin;' : $available;
+		}
+
+		if (strpos($shortcode, '[EVENT_IMAGE_*') !== false) {
+			$attrs = $this->_get_shortcode_attrs($shortcode);
+			$width = empty($attrs['width']) ? '' : ' width="' . $attrs['width'] . '"';
+			$height = empty($attrs['height']) ? '' : ' height="' . $attrs['height'] . '"';
+
+			// Size may be set to a string such as 'tumbnail' or "width, height" eg - '200,200'
+			if (! empty($attrs['size'])) {
+				$size = explode(',', $attrs['size']);
+				if (count($size) === 1) {
+					$size = $size[0];
+				}
+			} else {
+				$size = 'thumbnail';
+			}
+
+			$image = $this->_event->feature_image_url($size);
+
+			return ! empty($image)
+				? '<img src="' . $image . '" alt="'
+				  . sprintf(
+					  esc_attr__('%s Feature Image', 'event_espresso'),
+					  $this->_event->get('EVT_name')
+				  ) . '"' . $width . $height . '/>'
+				: '';
+		}
+
+		return '';
+	}
+
+
+	/**
+	 * returns the link to the event
+	 *
+	 * @param  boolean $full_link if TRUE (default) we return the html for the name of the event linked to the event.
+	 *                            Otherwise we just return the url of the event.
+	 * @return string
+	 */
+	private function _get_event_link($event, $full_link = true)
+	{
+		$url = get_permalink($event->ID());
+
+		return $full_link ? '<a href="' . $url . '">' . $event->get('EVT_name') . '</a>' : $url;
+	}
 }

core/EE_Addon.core.php

Indentation +843 added lines, -843 removed lines

@@ -19,797 +19,797 @@ 
 {
 
 
-    /**
-     * prefix to be added onto an addon's plugin slug to make a wp option name
-     * which will be used to store the plugin's activation history
-     */
-    const ee_addon_version_history_option_prefix = 'ee_version_history_';
-
-    /**
-     * @var $_version
-     * @type string
-     */
-    protected $_version = '';
-
-    /**
-     * @var $_min_core_version
-     * @type string
-     */
-    protected $_min_core_version = '';
-
-    /**
-     * derived from plugin 'main_file_path using plugin_basename()
-     *
-     * @type string $_plugin_basename
-     */
-    protected $_plugin_basename = '';
-
-    /**
-     * A non-internationalized name to identify this addon for use in URLs, etc
-     *
-     * @type string $_plugin_slug
-     */
-    protected $_plugin_slug = '';
-
-    /**
-     * A non-internationalized name to identify this addon. Eg 'Calendar','MailChimp',etc/
-     *
-     * @type string _addon_name
-     */
-    protected $_addon_name = '';
-
-    /**
-     * one of the EE_System::req_type_* constants
-     *
-     * @type int $_req_type
-     */
-    protected $_req_type;
-
-    /**
-     * page slug to be used when generating the "Settings" link on the WP plugin page
-     *
-     * @type string $_plugin_action_slug
-     */
-    protected $_plugin_action_slug = '';
-
-    /**
-     * if not empty, inserts a new table row after this plugin's row on the WP Plugins page
-     * that can be used for adding upgrading/marketing info
-     *
-     * @type array $_plugins_page_row
-     */
-    protected $_plugins_page_row = array();
-
-
-    /**
-     *    filepath to the main file, which can be used for register_activation_hook, register_deactivation_hook, etc.
-     *
-     * @type string
-     */
-    protected $_main_plugin_file;
-
-    /**
-     *    This is the slug used to identify this add-on within the plugin update engine.
-     *
-     * @type string
-     */
-    protected $pue_slug;
-
-
-    /**
-     * @var EE_Dependency_Map $dependency_map
-     */
-    private $dependency_map;
-
-
-    /**
-     * @var DomainInterface $domain
-     */
-    private $domain;
-
-
-    /**
-     * @param EE_Dependency_Map $dependency_map [optional]
-     * @param DomainInterface   $domain         [optional]
-     */
-    public function __construct(EE_Dependency_Map $dependency_map = null, DomainInterface $domain = null)
-    {
-        if ($dependency_map instanceof EE_Dependency_Map) {
-            $this->setDependencyMap($dependency_map);
-        }
-        if ($domain instanceof DomainInterface) {
-            $this->setDomain($domain);
-        }
-        add_action('AHEE__EE_System__load_controllers__load_admin_controllers', array($this, 'admin_init'));
-    }
-
-
-    /**
-     * @param EE_Dependency_Map $dependency_map
-     */
-    public function setDependencyMap($dependency_map)
-    {
-        $this->dependency_map = $dependency_map;
-    }
-
-
-    /**
-     * @return EE_Dependency_Map
-     */
-    public function dependencyMap()
-    {
-        return $this->dependency_map;
-    }
-
-
-    /**
-     * @param DomainInterface $domain
-     */
-    public function setDomain(DomainInterface $domain)
-    {
-        $this->domain = $domain;
-    }
-
-    /**
-     * @return DomainInterface
-     */
-    public function domain()
-    {
-        return $this->domain;
-    }
-
-
-    /**
-     * @param mixed $version
-     */
-    public function set_version($version = null)
-    {
-        $this->_version = $version;
-    }
-
-
-    /**
-     * get__version
-     *
-     * @return string
-     */
-    public function version()
-    {
-        return $this->_version;
-    }
-
-
-    /**
-     * @param mixed $min_core_version
-     */
-    public function set_min_core_version($min_core_version = null)
-    {
-        $this->_min_core_version = $min_core_version;
-    }
-
-
-    /**
-     * get__min_core_version
-     *
-     * @return string
-     */
-    public function min_core_version()
-    {
-        return $this->_min_core_version;
-    }
-
-
-    /**
-     * Sets addon_name
-     *
-     * @param string $addon_name
-     * @return boolean
-     */
-    public function set_name($addon_name)
-    {
-        return $this->_addon_name = $addon_name;
-    }
-
-
-    /**
-     * Gets addon_name
-     *
-     * @return string
-     */
-    public function name()
-    {
-        return $this->_addon_name;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function plugin_basename()
-    {
-
-        return $this->_plugin_basename;
-    }
-
-
-    /**
-     * @param string $plugin_basename
-     */
-    public function set_plugin_basename($plugin_basename)
-    {
-
-        $this->_plugin_basename = $plugin_basename;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function plugin_slug()
-    {
-
-        return $this->_plugin_slug;
-    }
-
-
-    /**
-     * @param string $plugin_slug
-     */
-    public function set_plugin_slug($plugin_slug)
-    {
-
-        $this->_plugin_slug = $plugin_slug;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function plugin_action_slug()
-    {
-
-        return $this->_plugin_action_slug;
-    }
-
-
-    /**
-     * @param string $plugin_action_slug
-     */
-    public function set_plugin_action_slug($plugin_action_slug)
-    {
-
-        $this->_plugin_action_slug = $plugin_action_slug;
-    }
-
-
-    /**
-     * @return array
-     */
-    public function get_plugins_page_row()
-    {
-
-        return $this->_plugins_page_row;
-    }
-
-
-    /**
-     * @param array $plugins_page_row
-     */
-    public function set_plugins_page_row($plugins_page_row = array())
-    {
-        // sigh.... check for example content that I stupidly merged to master and remove it if found
-        if (! is_array($plugins_page_row)
-            && strpos($plugins_page_row, '<h3>Promotions Addon Upsell Info</h3>') !== false
-        ) {
-            $plugins_page_row = array();
-        }
-        $this->_plugins_page_row = (array) $plugins_page_row;
-    }
-
-
-    /**
-     * Called when EE core detects this addon has been activated for the first time.
-     * If the site isn't in maintenance mode, should setup the addon's database
-     *
-     * @return void
-     */
-    public function new_install()
-    {
-        $classname = get_class($this);
-        do_action("AHEE__{$classname}__new_install");
-        do_action('AHEE__EE_Addon__new_install', $this);
-        EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            array($this, 'initialize_db_if_no_migrations_required')
-        );
-    }
-
-
-    /**
-     * Called when EE core detects this addon has been reactivated. When this happens,
-     * it's good to just check that your data is still intact
-     *
-     * @return void
-     */
-    public function reactivation()
-    {
-        $classname = get_class($this);
-        do_action("AHEE__{$classname}__reactivation");
-        do_action('AHEE__EE_Addon__reactivation', $this);
-        EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            array($this, 'initialize_db_if_no_migrations_required')
-        );
-    }
-
-
-    /**
-     * Called when the registered deactivation hook for this addon fires.
-     *
-     * @throws EE_Error
-     */
-    public function deactivation()
-    {
-        $classname = get_class($this);
-        do_action("AHEE__{$classname}__deactivation");
-        do_action('AHEE__EE_Addon__deactivation', $this);
-        // check if the site no longer needs to be in maintenance mode
-        EE_Register_Addon::deregister($this->name());
-        EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
-    }
-
-
-    /**
-     * Takes care of double-checking that we're not in maintenance mode, and then
-     * initializing this addon's necessary initial data. This is called by default on new activations
-     * and reactivations.
-     *
-     * @param boolean $verify_schema whether to verify the database's schema for this addon, or just its data.
-     *                               This is a resource-intensive job so we prefer to only do it when necessary
-     * @return void
-     * @throws \EE_Error
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws InvalidArgumentException
-     */
-    public function initialize_db_if_no_migrations_required($verify_schema = true)
-    {
-        if ($verify_schema === '') {
-            // wp core bug imo: if no args are passed to `do_action('some_hook_name')` besides the hook's name
-            // (ie, no 2nd or 3rd arguments), instead of calling the registered callbacks with no arguments, it
-            // calls them with an argument of an empty string (ie ""), which evaluates to false
-            // so we need to treat the empty string as if nothing had been passed, and should instead use the default
-            $verify_schema = true;
-        }
-        if (EE_Maintenance_Mode::instance()->level() !== EE_Maintenance_Mode::level_2_complete_maintenance) {
-            if ($verify_schema) {
-                $this->initialize_db();
-            }
-            $this->initialize_default_data();
-            // @todo: this will probably need to be adjusted in 4.4 as the array changed formats I believe
-            EE_Data_Migration_Manager::instance()->update_current_database_state_to(
-                array(
-                    'slug'    => $this->name(),
-                    'version' => $this->version(),
-                )
-            );
-            /* make sure core's data is a-ok
+	/**
+	 * prefix to be added onto an addon's plugin slug to make a wp option name
+	 * which will be used to store the plugin's activation history
+	 */
+	const ee_addon_version_history_option_prefix = 'ee_version_history_';
+
+	/**
+	 * @var $_version
+	 * @type string
+	 */
+	protected $_version = '';
+
+	/**
+	 * @var $_min_core_version
+	 * @type string
+	 */
+	protected $_min_core_version = '';
+
+	/**
+	 * derived from plugin 'main_file_path using plugin_basename()
+	 *
+	 * @type string $_plugin_basename
+	 */
+	protected $_plugin_basename = '';
+
+	/**
+	 * A non-internationalized name to identify this addon for use in URLs, etc
+	 *
+	 * @type string $_plugin_slug
+	 */
+	protected $_plugin_slug = '';
+
+	/**
+	 * A non-internationalized name to identify this addon. Eg 'Calendar','MailChimp',etc/
+	 *
+	 * @type string _addon_name
+	 */
+	protected $_addon_name = '';
+
+	/**
+	 * one of the EE_System::req_type_* constants
+	 *
+	 * @type int $_req_type
+	 */
+	protected $_req_type;
+
+	/**
+	 * page slug to be used when generating the "Settings" link on the WP plugin page
+	 *
+	 * @type string $_plugin_action_slug
+	 */
+	protected $_plugin_action_slug = '';
+
+	/**
+	 * if not empty, inserts a new table row after this plugin's row on the WP Plugins page
+	 * that can be used for adding upgrading/marketing info
+	 *
+	 * @type array $_plugins_page_row
+	 */
+	protected $_plugins_page_row = array();
+
+
+	/**
+	 *    filepath to the main file, which can be used for register_activation_hook, register_deactivation_hook, etc.
+	 *
+	 * @type string
+	 */
+	protected $_main_plugin_file;
+
+	/**
+	 *    This is the slug used to identify this add-on within the plugin update engine.
+	 *
+	 * @type string
+	 */
+	protected $pue_slug;
+
+
+	/**
+	 * @var EE_Dependency_Map $dependency_map
+	 */
+	private $dependency_map;
+
+
+	/**
+	 * @var DomainInterface $domain
+	 */
+	private $domain;
+
+
+	/**
+	 * @param EE_Dependency_Map $dependency_map [optional]
+	 * @param DomainInterface   $domain         [optional]
+	 */
+	public function __construct(EE_Dependency_Map $dependency_map = null, DomainInterface $domain = null)
+	{
+		if ($dependency_map instanceof EE_Dependency_Map) {
+			$this->setDependencyMap($dependency_map);
+		}
+		if ($domain instanceof DomainInterface) {
+			$this->setDomain($domain);
+		}
+		add_action('AHEE__EE_System__load_controllers__load_admin_controllers', array($this, 'admin_init'));
+	}
+
+
+	/**
+	 * @param EE_Dependency_Map $dependency_map
+	 */
+	public function setDependencyMap($dependency_map)
+	{
+		$this->dependency_map = $dependency_map;
+	}
+
+
+	/**
+	 * @return EE_Dependency_Map
+	 */
+	public function dependencyMap()
+	{
+		return $this->dependency_map;
+	}
+
+
+	/**
+	 * @param DomainInterface $domain
+	 */
+	public function setDomain(DomainInterface $domain)
+	{
+		$this->domain = $domain;
+	}
+
+	/**
+	 * @return DomainInterface
+	 */
+	public function domain()
+	{
+		return $this->domain;
+	}
+
+
+	/**
+	 * @param mixed $version
+	 */
+	public function set_version($version = null)
+	{
+		$this->_version = $version;
+	}
+
+
+	/**
+	 * get__version
+	 *
+	 * @return string
+	 */
+	public function version()
+	{
+		return $this->_version;
+	}
+
+
+	/**
+	 * @param mixed $min_core_version
+	 */
+	public function set_min_core_version($min_core_version = null)
+	{
+		$this->_min_core_version = $min_core_version;
+	}
+
+
+	/**
+	 * get__min_core_version
+	 *
+	 * @return string
+	 */
+	public function min_core_version()
+	{
+		return $this->_min_core_version;
+	}
+
+
+	/**
+	 * Sets addon_name
+	 *
+	 * @param string $addon_name
+	 * @return boolean
+	 */
+	public function set_name($addon_name)
+	{
+		return $this->_addon_name = $addon_name;
+	}
+
+
+	/**
+	 * Gets addon_name
+	 *
+	 * @return string
+	 */
+	public function name()
+	{
+		return $this->_addon_name;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function plugin_basename()
+	{
+
+		return $this->_plugin_basename;
+	}
+
+
+	/**
+	 * @param string $plugin_basename
+	 */
+	public function set_plugin_basename($plugin_basename)
+	{
+
+		$this->_plugin_basename = $plugin_basename;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function plugin_slug()
+	{
+
+		return $this->_plugin_slug;
+	}
+
+
+	/**
+	 * @param string $plugin_slug
+	 */
+	public function set_plugin_slug($plugin_slug)
+	{
+
+		$this->_plugin_slug = $plugin_slug;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function plugin_action_slug()
+	{
+
+		return $this->_plugin_action_slug;
+	}
+
+
+	/**
+	 * @param string $plugin_action_slug
+	 */
+	public function set_plugin_action_slug($plugin_action_slug)
+	{
+
+		$this->_plugin_action_slug = $plugin_action_slug;
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function get_plugins_page_row()
+	{
+
+		return $this->_plugins_page_row;
+	}
+
+
+	/**
+	 * @param array $plugins_page_row
+	 */
+	public function set_plugins_page_row($plugins_page_row = array())
+	{
+		// sigh.... check for example content that I stupidly merged to master and remove it if found
+		if (! is_array($plugins_page_row)
+			&& strpos($plugins_page_row, '<h3>Promotions Addon Upsell Info</h3>') !== false
+		) {
+			$plugins_page_row = array();
+		}
+		$this->_plugins_page_row = (array) $plugins_page_row;
+	}
+
+
+	/**
+	 * Called when EE core detects this addon has been activated for the first time.
+	 * If the site isn't in maintenance mode, should setup the addon's database
+	 *
+	 * @return void
+	 */
+	public function new_install()
+	{
+		$classname = get_class($this);
+		do_action("AHEE__{$classname}__new_install");
+		do_action('AHEE__EE_Addon__new_install', $this);
+		EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			array($this, 'initialize_db_if_no_migrations_required')
+		);
+	}
+
+
+	/**
+	 * Called when EE core detects this addon has been reactivated. When this happens,
+	 * it's good to just check that your data is still intact
+	 *
+	 * @return void
+	 */
+	public function reactivation()
+	{
+		$classname = get_class($this);
+		do_action("AHEE__{$classname}__reactivation");
+		do_action('AHEE__EE_Addon__reactivation', $this);
+		EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			array($this, 'initialize_db_if_no_migrations_required')
+		);
+	}
+
+
+	/**
+	 * Called when the registered deactivation hook for this addon fires.
+	 *
+	 * @throws EE_Error
+	 */
+	public function deactivation()
+	{
+		$classname = get_class($this);
+		do_action("AHEE__{$classname}__deactivation");
+		do_action('AHEE__EE_Addon__deactivation', $this);
+		// check if the site no longer needs to be in maintenance mode
+		EE_Register_Addon::deregister($this->name());
+		EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
+	}
+
+
+	/**
+	 * Takes care of double-checking that we're not in maintenance mode, and then
+	 * initializing this addon's necessary initial data. This is called by default on new activations
+	 * and reactivations.
+	 *
+	 * @param boolean $verify_schema whether to verify the database's schema for this addon, or just its data.
+	 *                               This is a resource-intensive job so we prefer to only do it when necessary
+	 * @return void
+	 * @throws \EE_Error
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidArgumentException
+	 */
+	public function initialize_db_if_no_migrations_required($verify_schema = true)
+	{
+		if ($verify_schema === '') {
+			// wp core bug imo: if no args are passed to `do_action('some_hook_name')` besides the hook's name
+			// (ie, no 2nd or 3rd arguments), instead of calling the registered callbacks with no arguments, it
+			// calls them with an argument of an empty string (ie ""), which evaluates to false
+			// so we need to treat the empty string as if nothing had been passed, and should instead use the default
+			$verify_schema = true;
+		}
+		if (EE_Maintenance_Mode::instance()->level() !== EE_Maintenance_Mode::level_2_complete_maintenance) {
+			if ($verify_schema) {
+				$this->initialize_db();
+			}
+			$this->initialize_default_data();
+			// @todo: this will probably need to be adjusted in 4.4 as the array changed formats I believe
+			EE_Data_Migration_Manager::instance()->update_current_database_state_to(
+				array(
+					'slug'    => $this->name(),
+					'version' => $this->version(),
+				)
+			);
+			/* make sure core's data is a-ok
              * (at the time of writing, we especially want to verify all the caps are present
              * because payment method type capabilities are added dynamically, and it's
              * possible this addon added a payment method. But it's also possible
              * other data needs to be verified)
              */
-            EEH_Activation::initialize_db_content();
-            /** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
-            $rewrite_rules = LoaderFactory::getLoader()->getShared(
-                'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
-            );
-            $rewrite_rules->flushRewriteRules();
-            // in case there are lots of addons being activated at once, let's force garbage collection
-            // to help avoid memory limit errors
-            // EEH_Debug_Tools::instance()->measure_memory( 'db content initialized for ' . get_class( $this), true );
-            gc_collect_cycles();
-        } else {
-            // ask the data migration manager to init this addon's data
-            // when migrations are finished because we can't do it now
-            EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for($this->name());
-        }
-    }
-
-
-    /**
-     * Used to setup this addon's database tables, but not necessarily any default
-     * data in them. The default is to actually use the most up-to-date data migration script
-     * for this addon, and just use its schema_changes_before_migration() and schema_changes_after_migration()
-     * methods to setup the db.
-     */
-    public function initialize_db()
-    {
-        // find the migration script that sets the database to be compatible with the code
-        $current_dms_name = EE_Data_Migration_Manager::instance()->get_most_up_to_date_dms($this->name());
-        if ($current_dms_name) {
-            $current_data_migration_script = EE_Registry::instance()->load_dms($current_dms_name);
-            $current_data_migration_script->set_migrating(false);
-            $current_data_migration_script->schema_changes_before_migration();
-            $current_data_migration_script->schema_changes_after_migration();
-            if ($current_data_migration_script->get_errors()) {
-                foreach ($current_data_migration_script->get_errors() as $error) {
-                    EE_Error::add_error($error, __FILE__, __FUNCTION__, __LINE__);
-                }
-            }
-        }
-        // if not DMS was found that should be ok. This addon just doesn't require any database changes
-        EE_Data_Migration_Manager::instance()->update_current_database_state_to(
-            array(
-                'slug'    => $this->name(),
-                'version' => $this->version(),
-            )
-        );
-    }
-
-
-    /**
-     * If you want to setup default data for the addon, override this method, and call
-     * parent::initialize_default_data() from within it. This is normally called
-     * from EE_Addon::initialize_db_if_no_migrations_required(), just after EE_Addon::initialize_db()
-     * and should verify default data is present (but this is also called
-     * on reactivations and just after migrations, so please verify you actually want
-     * to ADD default data, because it may already be present).
-     * However, please call this parent (currently it just fires a hook which other
-     * addons may be depending on)
-     */
-    public function initialize_default_data()
-    {
-        /**
-         * Called when an addon is ensuring its default data is set (possibly called
-         * on a reactivation, so first check for the absence of other data before setting
-         * default data)
-         *
-         * @param EE_Addon $addon the addon that called this
-         */
-        do_action('AHEE__EE_Addon__initialize_default_data__begin', $this);
-        // override to insert default data. It is safe to use the models here
-        // because the site should not be in maintenance mode
-    }
-
-
-    /**
-     * EE Core detected that this addon has been upgraded. We should check if there
-     * are any new migration scripts, and if so put the site into maintenance mode until
-     * they're ran
-     *
-     * @return void
-     */
-    public function upgrade()
-    {
-        $classname = get_class($this);
-        do_action("AHEE__{$classname}__upgrade");
-        do_action('AHEE__EE_Addon__upgrade', $this);
-        EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
-        // also it's possible there is new default data that needs to be added
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            array($this, 'initialize_db_if_no_migrations_required')
-        );
-    }
-
-
-    /**
-     * If Core detects this addon has been downgraded, you may want to invoke some special logic here.
-     */
-    public function downgrade()
-    {
-        $classname = get_class($this);
-        do_action("AHEE__{$classname}__downgrade");
-        do_action('AHEE__EE_Addon__downgrade', $this);
-        // it's possible there's old default data that needs to be double-checked
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            array($this, 'initialize_db_if_no_migrations_required')
-        );
-    }
-
-
-    /**
-     * set_db_update_option_name
-     * Until we do something better, we'll just check for migration scripts upon
-     * plugin activation only. In the future, we'll want to do it on plugin updates too
-     *
-     * @return bool
-     */
-    public function set_db_update_option_name()
-    {
-        EE_Error::doing_it_wrong(
-            __FUNCTION__,
-            esc_html__(
-                'EE_Addon::set_db_update_option_name was renamed to EE_Addon::set_activation_indicator_option',
-                'event_espresso'
-            ),
-            '4.3.0.alpha.016'
-        );
-        // let's just handle this on the next request, ok? right now we're just not really ready
-        return $this->set_activation_indicator_option();
-    }
-
-
-    /**
-     * Returns the name of the activation indicator option
-     * (an option which is set temporarily to indicate that this addon was just activated)
-     *
-     * @deprecated since version 4.3.0.alpha.016
-     * @return string
-     */
-    public function get_db_update_option_name()
-    {
-        EE_Error::doing_it_wrong(
-            __FUNCTION__,
-            esc_html__(
-                'EE_Addon::get_db_update_option was renamed to EE_Addon::get_activation_indicator_option_name',
-                'event_espresso'
-            ),
-            '4.3.0.alpha.016'
-        );
-        return $this->get_activation_indicator_option_name();
-    }
-
-
-    /**
-     * When the addon is activated, this should be called to set a wordpress option that
-     * indicates it was activated. This is especially useful for detecting reactivations.
-     *
-     * @return bool
-     */
-    public function set_activation_indicator_option()
-    {
-        // let's just handle this on the next request, ok? right now we're just not really ready
-        return update_option($this->get_activation_indicator_option_name(), true);
-    }
-
-
-    /**
-     * Gets the name of the wp option which is used to temporarily indicate that this addon was activated
-     *
-     * @return string
-     */
-    public function get_activation_indicator_option_name()
-    {
-        return 'ee_activation_' . $this->name();
-    }
-
-
-    /**
-     * Used by EE_System to set the request type of this addon. Should not be used by addon developers
-     *
-     * @param int $req_type
-     */
-    public function set_req_type($req_type)
-    {
-        $this->_req_type = $req_type;
-    }
-
-
-    /**
-     * Returns the request type of this addon (ie, EE_System::req_type_normal, EE_System::req_type_new_activation,
-     * EE_System::req_type_reactivation, EE_System::req_type_upgrade, or EE_System::req_type_downgrade). This is set by
-     * EE_System when it is checking for new install or upgrades of addons
-     */
-    public function detect_req_type()
-    {
-        if (! $this->_req_type) {
-            $this->detect_activation_or_upgrade();
-        }
-        return $this->_req_type;
-    }
-
-
-    /**
-     * Detects the request type for this addon (whether it was just activated, upgrades, a normal request, etc.)
-     * Should only be called once per request
-     *
-     * @return void
-     */
-    public function detect_activation_or_upgrade()
-    {
-        $activation_history_for_addon = $this->get_activation_history();
-        $request_type = EE_System::detect_req_type_given_activation_history(
-            $activation_history_for_addon,
-            $this->get_activation_indicator_option_name(),
-            $this->version()
-        );
-        $this->set_req_type($request_type);
-        $classname = get_class($this);
-        switch ($request_type) {
-            case EE_System::req_type_new_activation:
-                do_action("AHEE__{$classname}__detect_activations_or_upgrades__new_activation");
-                do_action('AHEE__EE_Addon__detect_activations_or_upgrades__new_activation', $this);
-                $this->new_install();
-                $this->update_list_of_installed_versions($activation_history_for_addon);
-                break;
-            case EE_System::req_type_reactivation:
-                do_action("AHEE__{$classname}__detect_activations_or_upgrades__reactivation");
-                do_action('AHEE__EE_Addon__detect_activations_or_upgrades__reactivation', $this);
-                $this->reactivation();
-                $this->update_list_of_installed_versions($activation_history_for_addon);
-                break;
-            case EE_System::req_type_upgrade:
-                do_action("AHEE__{$classname}__detect_activations_or_upgrades__upgrade");
-                do_action('AHEE__EE_Addon__detect_activations_or_upgrades__upgrade', $this);
-                $this->upgrade();
-                $this->update_list_of_installed_versions($activation_history_for_addon);
-                break;
-            case EE_System::req_type_downgrade:
-                do_action("AHEE__{$classname}__detect_activations_or_upgrades__downgrade");
-                do_action('AHEE__EE_Addon__detect_activations_or_upgrades__downgrade', $this);
-                $this->downgrade();
-                $this->update_list_of_installed_versions($activation_history_for_addon);
-                break;
-            case EE_System::req_type_normal:
-            default:
-                break;
-        }
-
-        do_action("AHEE__{$classname}__detect_if_activation_or_upgrade__complete");
-    }
-
-    /**
-     * Updates the version history for this addon
-     *
-     * @param array  $version_history
-     * @param string $current_version_to_add
-     * @return boolean success
-     */
-    public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null)
-    {
-        if (! $version_history) {
-            $version_history = $this->get_activation_history();
-        }
-        if ($current_version_to_add === null) {
-            $current_version_to_add = $this->version();
-        }
-        $version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
-        // resave
-        return update_option($this->get_activation_history_option_name(), $version_history);
-    }
-
-    /**
-     * Gets the name of the wp option that stores the activation history
-     * of this addon
-     *
-     * @return string
-     */
-    public function get_activation_history_option_name()
-    {
-        return self::ee_addon_version_history_option_prefix . $this->name();
-    }
-
-
-    /**
-     * Gets the wp option which stores the activation history for this addon
-     *
-     * @return array
-     */
-    public function get_activation_history()
-    {
-        return get_option($this->get_activation_history_option_name(), null);
-    }
-
-
-    /**
-     * @param string $config_section
-     */
-    public function set_config_section($config_section = '')
-    {
-        $this->_config_section = ! empty($config_section) ? $config_section : 'addons';
-    }
-
-    /**
-     * Sets the filepath to the main plugin file
-     *
-     * @param string $filepath
-     */
-    public function set_main_plugin_file($filepath)
-    {
-        $this->_main_plugin_file = $filepath;
-    }
-
-    /**
-     * gets the filepath to teh main file
-     *
-     * @return string
-     */
-    public function get_main_plugin_file()
-    {
-        return $this->_main_plugin_file;
-    }
-
-    /**
-     * Gets the filename (no path) of the main file (the main file loaded
-     * by WP)
-     *
-     * @return string
-     */
-    public function get_main_plugin_file_basename()
-    {
-        return plugin_basename($this->get_main_plugin_file());
-    }
-
-    /**
-     * Gets the folder name which contains the main plugin file
-     *
-     * @return string
-     */
-    public function get_main_plugin_file_dirname()
-    {
-        return dirname($this->get_main_plugin_file());
-    }
-
-
-    /**
-     * sets hooks used in the admin
-     *
-     * @return void
-     */
-    public function admin_init()
-    {
-        // is admin and not in M-Mode ?
-        if (is_admin() && ! EE_Maintenance_Mode::instance()->level()) {
-            add_filter('plugin_action_links', array($this, 'plugin_action_links'), 10, 2);
-            add_filter('after_plugin_row_' . $this->_plugin_basename, array($this, 'after_plugin_row'), 10, 3);
-        }
-    }
-
-
-    /**
-     * plugin_actions
-     * Add a settings link to the Plugins page, so people can go straight from the plugin page to the settings page.
-     *
-     * @param $links
-     * @param $file
-     * @return array
-     */
-    public function plugin_action_links($links, $file)
-    {
-        if ($file === $this->plugin_basename() && $this->plugin_action_slug() !== '') {
-            // before other links
-            array_unshift(
-                $links,
-                '<a href="admin.php?page=' . $this->plugin_action_slug() . '">'
-                . esc_html__('Settings', 'event_espresso')
-                . '</a>'
-            );
-        }
-        return $links;
-    }
-
-
-    /**
-     * after_plugin_row
-     * Add additional content to the plugins page plugin row
-     * Inserts another row
-     *
-     * @param $plugin_file
-     * @param $plugin_data
-     * @param $status
-     * @return void
-     */
-    public function after_plugin_row($plugin_file, $plugin_data, $status)
-    {
-        $after_plugin_row = '';
-        $plugins_page_row = $this->get_plugins_page_row();
-        if (! empty($plugins_page_row) && $plugin_file === $this->plugin_basename()) {
-            $class = $status ? 'active' : 'inactive';
-            $link_text = isset($plugins_page_row['link_text']) ? $plugins_page_row['link_text'] : '';
-            $link_url = isset($plugins_page_row['link_url']) ? $plugins_page_row['link_url'] : '';
-            $description = isset($plugins_page_row['description'])
-                ? $plugins_page_row['description']
-                : '';
-            if (! empty($link_text) && ! empty($link_url) && ! empty($description)) {
-                $after_plugin_row .= '<tr id="' . sanitize_title($plugin_file) . '-ee-addon" class="' . $class . '">';
-                $after_plugin_row .= '<th class="check-column" scope="row"></th>';
-                $after_plugin_row .= '<td class="ee-addon-upsell-info-title-td plugin-title column-primary">';
-                $after_plugin_row .= '<style>
+			EEH_Activation::initialize_db_content();
+			/** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
+			$rewrite_rules = LoaderFactory::getLoader()->getShared(
+				'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
+			);
+			$rewrite_rules->flushRewriteRules();
+			// in case there are lots of addons being activated at once, let's force garbage collection
+			// to help avoid memory limit errors
+			// EEH_Debug_Tools::instance()->measure_memory( 'db content initialized for ' . get_class( $this), true );
+			gc_collect_cycles();
+		} else {
+			// ask the data migration manager to init this addon's data
+			// when migrations are finished because we can't do it now
+			EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for($this->name());
+		}
+	}
+
+
+	/**
+	 * Used to setup this addon's database tables, but not necessarily any default
+	 * data in them. The default is to actually use the most up-to-date data migration script
+	 * for this addon, and just use its schema_changes_before_migration() and schema_changes_after_migration()
+	 * methods to setup the db.
+	 */
+	public function initialize_db()
+	{
+		// find the migration script that sets the database to be compatible with the code
+		$current_dms_name = EE_Data_Migration_Manager::instance()->get_most_up_to_date_dms($this->name());
+		if ($current_dms_name) {
+			$current_data_migration_script = EE_Registry::instance()->load_dms($current_dms_name);
+			$current_data_migration_script->set_migrating(false);
+			$current_data_migration_script->schema_changes_before_migration();
+			$current_data_migration_script->schema_changes_after_migration();
+			if ($current_data_migration_script->get_errors()) {
+				foreach ($current_data_migration_script->get_errors() as $error) {
+					EE_Error::add_error($error, __FILE__, __FUNCTION__, __LINE__);
+				}
+			}
+		}
+		// if not DMS was found that should be ok. This addon just doesn't require any database changes
+		EE_Data_Migration_Manager::instance()->update_current_database_state_to(
+			array(
+				'slug'    => $this->name(),
+				'version' => $this->version(),
+			)
+		);
+	}
+
+
+	/**
+	 * If you want to setup default data for the addon, override this method, and call
+	 * parent::initialize_default_data() from within it. This is normally called
+	 * from EE_Addon::initialize_db_if_no_migrations_required(), just after EE_Addon::initialize_db()
+	 * and should verify default data is present (but this is also called
+	 * on reactivations and just after migrations, so please verify you actually want
+	 * to ADD default data, because it may already be present).
+	 * However, please call this parent (currently it just fires a hook which other
+	 * addons may be depending on)
+	 */
+	public function initialize_default_data()
+	{
+		/**
+		 * Called when an addon is ensuring its default data is set (possibly called
+		 * on a reactivation, so first check for the absence of other data before setting
+		 * default data)
+		 *
+		 * @param EE_Addon $addon the addon that called this
+		 */
+		do_action('AHEE__EE_Addon__initialize_default_data__begin', $this);
+		// override to insert default data. It is safe to use the models here
+		// because the site should not be in maintenance mode
+	}
+
+
+	/**
+	 * EE Core detected that this addon has been upgraded. We should check if there
+	 * are any new migration scripts, and if so put the site into maintenance mode until
+	 * they're ran
+	 *
+	 * @return void
+	 */
+	public function upgrade()
+	{
+		$classname = get_class($this);
+		do_action("AHEE__{$classname}__upgrade");
+		do_action('AHEE__EE_Addon__upgrade', $this);
+		EE_Maintenance_Mode::instance()->set_maintenance_mode_if_db_old();
+		// also it's possible there is new default data that needs to be added
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			array($this, 'initialize_db_if_no_migrations_required')
+		);
+	}
+
+
+	/**
+	 * If Core detects this addon has been downgraded, you may want to invoke some special logic here.
+	 */
+	public function downgrade()
+	{
+		$classname = get_class($this);
+		do_action("AHEE__{$classname}__downgrade");
+		do_action('AHEE__EE_Addon__downgrade', $this);
+		// it's possible there's old default data that needs to be double-checked
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			array($this, 'initialize_db_if_no_migrations_required')
+		);
+	}
+
+
+	/**
+	 * set_db_update_option_name
+	 * Until we do something better, we'll just check for migration scripts upon
+	 * plugin activation only. In the future, we'll want to do it on plugin updates too
+	 *
+	 * @return bool
+	 */
+	public function set_db_update_option_name()
+	{
+		EE_Error::doing_it_wrong(
+			__FUNCTION__,
+			esc_html__(
+				'EE_Addon::set_db_update_option_name was renamed to EE_Addon::set_activation_indicator_option',
+				'event_espresso'
+			),
+			'4.3.0.alpha.016'
+		);
+		// let's just handle this on the next request, ok? right now we're just not really ready
+		return $this->set_activation_indicator_option();
+	}
+
+
+	/**
+	 * Returns the name of the activation indicator option
+	 * (an option which is set temporarily to indicate that this addon was just activated)
+	 *
+	 * @deprecated since version 4.3.0.alpha.016
+	 * @return string
+	 */
+	public function get_db_update_option_name()
+	{
+		EE_Error::doing_it_wrong(
+			__FUNCTION__,
+			esc_html__(
+				'EE_Addon::get_db_update_option was renamed to EE_Addon::get_activation_indicator_option_name',
+				'event_espresso'
+			),
+			'4.3.0.alpha.016'
+		);
+		return $this->get_activation_indicator_option_name();
+	}
+
+
+	/**
+	 * When the addon is activated, this should be called to set a wordpress option that
+	 * indicates it was activated. This is especially useful for detecting reactivations.
+	 *
+	 * @return bool
+	 */
+	public function set_activation_indicator_option()
+	{
+		// let's just handle this on the next request, ok? right now we're just not really ready
+		return update_option($this->get_activation_indicator_option_name(), true);
+	}
+
+
+	/**
+	 * Gets the name of the wp option which is used to temporarily indicate that this addon was activated
+	 *
+	 * @return string
+	 */
+	public function get_activation_indicator_option_name()
+	{
+		return 'ee_activation_' . $this->name();
+	}
+
+
+	/**
+	 * Used by EE_System to set the request type of this addon. Should not be used by addon developers
+	 *
+	 * @param int $req_type
+	 */
+	public function set_req_type($req_type)
+	{
+		$this->_req_type = $req_type;
+	}
+
+
+	/**
+	 * Returns the request type of this addon (ie, EE_System::req_type_normal, EE_System::req_type_new_activation,
+	 * EE_System::req_type_reactivation, EE_System::req_type_upgrade, or EE_System::req_type_downgrade). This is set by
+	 * EE_System when it is checking for new install or upgrades of addons
+	 */
+	public function detect_req_type()
+	{
+		if (! $this->_req_type) {
+			$this->detect_activation_or_upgrade();
+		}
+		return $this->_req_type;
+	}
+
+
+	/**
+	 * Detects the request type for this addon (whether it was just activated, upgrades, a normal request, etc.)
+	 * Should only be called once per request
+	 *
+	 * @return void
+	 */
+	public function detect_activation_or_upgrade()
+	{
+		$activation_history_for_addon = $this->get_activation_history();
+		$request_type = EE_System::detect_req_type_given_activation_history(
+			$activation_history_for_addon,
+			$this->get_activation_indicator_option_name(),
+			$this->version()
+		);
+		$this->set_req_type($request_type);
+		$classname = get_class($this);
+		switch ($request_type) {
+			case EE_System::req_type_new_activation:
+				do_action("AHEE__{$classname}__detect_activations_or_upgrades__new_activation");
+				do_action('AHEE__EE_Addon__detect_activations_or_upgrades__new_activation', $this);
+				$this->new_install();
+				$this->update_list_of_installed_versions($activation_history_for_addon);
+				break;
+			case EE_System::req_type_reactivation:
+				do_action("AHEE__{$classname}__detect_activations_or_upgrades__reactivation");
+				do_action('AHEE__EE_Addon__detect_activations_or_upgrades__reactivation', $this);
+				$this->reactivation();
+				$this->update_list_of_installed_versions($activation_history_for_addon);
+				break;
+			case EE_System::req_type_upgrade:
+				do_action("AHEE__{$classname}__detect_activations_or_upgrades__upgrade");
+				do_action('AHEE__EE_Addon__detect_activations_or_upgrades__upgrade', $this);
+				$this->upgrade();
+				$this->update_list_of_installed_versions($activation_history_for_addon);
+				break;
+			case EE_System::req_type_downgrade:
+				do_action("AHEE__{$classname}__detect_activations_or_upgrades__downgrade");
+				do_action('AHEE__EE_Addon__detect_activations_or_upgrades__downgrade', $this);
+				$this->downgrade();
+				$this->update_list_of_installed_versions($activation_history_for_addon);
+				break;
+			case EE_System::req_type_normal:
+			default:
+				break;
+		}
+
+		do_action("AHEE__{$classname}__detect_if_activation_or_upgrade__complete");
+	}
+
+	/**
+	 * Updates the version history for this addon
+	 *
+	 * @param array  $version_history
+	 * @param string $current_version_to_add
+	 * @return boolean success
+	 */
+	public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null)
+	{
+		if (! $version_history) {
+			$version_history = $this->get_activation_history();
+		}
+		if ($current_version_to_add === null) {
+			$current_version_to_add = $this->version();
+		}
+		$version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
+		// resave
+		return update_option($this->get_activation_history_option_name(), $version_history);
+	}
+
+	/**
+	 * Gets the name of the wp option that stores the activation history
+	 * of this addon
+	 *
+	 * @return string
+	 */
+	public function get_activation_history_option_name()
+	{
+		return self::ee_addon_version_history_option_prefix . $this->name();
+	}
+
+
+	/**
+	 * Gets the wp option which stores the activation history for this addon
+	 *
+	 * @return array
+	 */
+	public function get_activation_history()
+	{
+		return get_option($this->get_activation_history_option_name(), null);
+	}
+
+
+	/**
+	 * @param string $config_section
+	 */
+	public function set_config_section($config_section = '')
+	{
+		$this->_config_section = ! empty($config_section) ? $config_section : 'addons';
+	}
+
+	/**
+	 * Sets the filepath to the main plugin file
+	 *
+	 * @param string $filepath
+	 */
+	public function set_main_plugin_file($filepath)
+	{
+		$this->_main_plugin_file = $filepath;
+	}
+
+	/**
+	 * gets the filepath to teh main file
+	 *
+	 * @return string
+	 */
+	public function get_main_plugin_file()
+	{
+		return $this->_main_plugin_file;
+	}
+
+	/**
+	 * Gets the filename (no path) of the main file (the main file loaded
+	 * by WP)
+	 *
+	 * @return string
+	 */
+	public function get_main_plugin_file_basename()
+	{
+		return plugin_basename($this->get_main_plugin_file());
+	}
+
+	/**
+	 * Gets the folder name which contains the main plugin file
+	 *
+	 * @return string
+	 */
+	public function get_main_plugin_file_dirname()
+	{
+		return dirname($this->get_main_plugin_file());
+	}
+
+
+	/**
+	 * sets hooks used in the admin
+	 *
+	 * @return void
+	 */
+	public function admin_init()
+	{
+		// is admin and not in M-Mode ?
+		if (is_admin() && ! EE_Maintenance_Mode::instance()->level()) {
+			add_filter('plugin_action_links', array($this, 'plugin_action_links'), 10, 2);
+			add_filter('after_plugin_row_' . $this->_plugin_basename, array($this, 'after_plugin_row'), 10, 3);
+		}
+	}
+
+
+	/**
+	 * plugin_actions
+	 * Add a settings link to the Plugins page, so people can go straight from the plugin page to the settings page.
+	 *
+	 * @param $links
+	 * @param $file
+	 * @return array
+	 */
+	public function plugin_action_links($links, $file)
+	{
+		if ($file === $this->plugin_basename() && $this->plugin_action_slug() !== '') {
+			// before other links
+			array_unshift(
+				$links,
+				'<a href="admin.php?page=' . $this->plugin_action_slug() . '">'
+				. esc_html__('Settings', 'event_espresso')
+				. '</a>'
+			);
+		}
+		return $links;
+	}
+
+
+	/**
+	 * after_plugin_row
+	 * Add additional content to the plugins page plugin row
+	 * Inserts another row
+	 *
+	 * @param $plugin_file
+	 * @param $plugin_data
+	 * @param $status
+	 * @return void
+	 */
+	public function after_plugin_row($plugin_file, $plugin_data, $status)
+	{
+		$after_plugin_row = '';
+		$plugins_page_row = $this->get_plugins_page_row();
+		if (! empty($plugins_page_row) && $plugin_file === $this->plugin_basename()) {
+			$class = $status ? 'active' : 'inactive';
+			$link_text = isset($plugins_page_row['link_text']) ? $plugins_page_row['link_text'] : '';
+			$link_url = isset($plugins_page_row['link_url']) ? $plugins_page_row['link_url'] : '';
+			$description = isset($plugins_page_row['description'])
+				? $plugins_page_row['description']
+				: '';
+			if (! empty($link_text) && ! empty($link_url) && ! empty($description)) {
+				$after_plugin_row .= '<tr id="' . sanitize_title($plugin_file) . '-ee-addon" class="' . $class . '">';
+				$after_plugin_row .= '<th class="check-column" scope="row"></th>';
+				$after_plugin_row .= '<td class="ee-addon-upsell-info-title-td plugin-title column-primary">';
+				$after_plugin_row .= '<style>
 .ee-button,
 .ee-button:active,
 .ee-button:visited {
@@ -846,64 +846,64 @@ 
 }
 .ee-button:active { top:0; }
 </style>';
-                $after_plugin_row .= '
+				$after_plugin_row .= '
 <p class="ee-addon-upsell-info-dv">
 	<a class="ee-button" href="' . $link_url . '">'
-                                     . $link_text
-                                     . ' &nbsp;<span class="dashicons dashicons-arrow-right-alt2" style="margin:0;"></span>'
-                                     . '</a>
+									 . $link_text
+									 . ' &nbsp;<span class="dashicons dashicons-arrow-right-alt2" style="margin:0;"></span>'
+									 . '</a>
 </p>';
-                $after_plugin_row .= '</td>';
-                $after_plugin_row .= '<td class="ee-addon-upsell-info-desc-td column-description desc">';
-                $after_plugin_row .= $description;
-                $after_plugin_row .= '</td>';
-                $after_plugin_row .= '</tr>';
-            } else {
-                $after_plugin_row .= $description;
-            }
-        }
-
-        echo $after_plugin_row;
-    }
-
-
-    /**
-     * A safe space for addons to add additional logic like setting hooks that need to be set early in the request.
-     * Child classes that have logic like that to run can override this method declaration.  This was not made abstract
-     * for back compat reasons.
-     *
-     * This will fire on the `AHEE__EE_System__load_espresso_addons__complete` hook at priority 999.
-     *
-     * It is recommended, if client code is `de-registering` an add-on, then do it on the
-     * `AHEE__EE_System__load_espresso_addons__complete` hook before priority 999 so as to ensure any code logic in this
-     * callback does not get run/set in that request.
-     *
-     * Also, keep in mind that if a registered add-on happens to be deactivated via
-     * EE_System::_deactivate_incompatible_addons() because its incompatible, any code executed in this method
-     * (including setting hooks etc) will have executed before the plugin was deactivated.  If you use
-     * `after_registration` to set any filter and/or action hooks and want to ensure they are removed on this add-on's
-     * deactivation, you can override `EE_Addon::deactivation` and unset your hooks and filters there.  Just remember
-     * to call `parent::deactivation`.
-     *
-     * @since 4.9.26
-     */
-    public function after_registration()
-    {
-        // cricket chirp... cricket chirp...
-    }
-
-    /**
-     * @return string
-     */
-    public function getPueSlug()
-    {
-        return $this->pue_slug;
-    }
-    /**
-     * @param string $pue_slug
-     */
-    public function setPueSlug($pue_slug)
-    {
-        $this->pue_slug = $pue_slug;
-    }
+				$after_plugin_row .= '</td>';
+				$after_plugin_row .= '<td class="ee-addon-upsell-info-desc-td column-description desc">';
+				$after_plugin_row .= $description;
+				$after_plugin_row .= '</td>';
+				$after_plugin_row .= '</tr>';
+			} else {
+				$after_plugin_row .= $description;
+			}
+		}
+
+		echo $after_plugin_row;
+	}
+
+
+	/**
+	 * A safe space for addons to add additional logic like setting hooks that need to be set early in the request.
+	 * Child classes that have logic like that to run can override this method declaration.  This was not made abstract
+	 * for back compat reasons.
+	 *
+	 * This will fire on the `AHEE__EE_System__load_espresso_addons__complete` hook at priority 999.
+	 *
+	 * It is recommended, if client code is `de-registering` an add-on, then do it on the
+	 * `AHEE__EE_System__load_espresso_addons__complete` hook before priority 999 so as to ensure any code logic in this
+	 * callback does not get run/set in that request.
+	 *
+	 * Also, keep in mind that if a registered add-on happens to be deactivated via
+	 * EE_System::_deactivate_incompatible_addons() because its incompatible, any code executed in this method
+	 * (including setting hooks etc) will have executed before the plugin was deactivated.  If you use
+	 * `after_registration` to set any filter and/or action hooks and want to ensure they are removed on this add-on's
+	 * deactivation, you can override `EE_Addon::deactivation` and unset your hooks and filters there.  Just remember
+	 * to call `parent::deactivation`.
+	 *
+	 * @since 4.9.26
+	 */
+	public function after_registration()
+	{
+		// cricket chirp... cricket chirp...
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getPueSlug()
+	{
+		return $this->pue_slug;
+	}
+	/**
+	 * @param string $pue_slug
+	 */
+	public function setPueSlug($pue_slug)
+	{
+		$this->pue_slug = $pue_slug;
+	}
 }

core/libraries/batch/JobHandlers/RegistrationsReport.php

Indentation +516 added lines, -516 removed lines

@@ -31,536 +31,536 @@
  */
 class RegistrationsReport extends JobHandlerFile
 {
-    // phpcs:disable PSR1.Methods.CamelCapsMethodName.NotCamelCaps
-    // phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
-    /**
-     * Performs any necessary setup for starting the job. This is also a good
-     * place to setup the $job_arguments which will be used for subsequent HTTP requests
-     * when continue_job will be called
-     *
-     * @param JobParameters $job_parameters
-     * @throws BatchRequestException
-     * @return JobStepResponse
-     */
-    public function create_job(JobParameters $job_parameters)
-    {
-        $event_id = intval($job_parameters->request_datum('EVT_ID', '0'));
-        if (! \EE_Capabilities::instance()->current_user_can('ee_read_registrations', 'generating_report')) {
-            throw new BatchRequestException(__('You do not have permission to view registrations', 'event_espresso'));
-        }
-        $filepath = $this->create_file_from_job_with_name(
-            $job_parameters->job_id(),
-            $this->get_filename($event_id)
-        );
-        $job_parameters->add_extra_data('filepath', $filepath);
-        if ($job_parameters->request_datum('use_filters', false)) {
-            $query_params = maybe_unserialize(stripslashes($job_parameters->request_datum('filters', array())));
-        } else {
-            $query_params = apply_filters('FHEE__EE_Export__report_registration_for_event', array(
-                array(
-                    'OR'                 => array(
-                        // don't include registrations from failed or abandoned transactions...
-                        'Transaction.STS_ID' => array(
-                            'NOT IN',
-                            array(
-                                EEM_Transaction::failed_status_code,
-                                EEM_Transaction::abandoned_status_code,
-                            ),
-                        ),
-                        // unless the registration is approved, in which case include it regardless of transaction status
-                        'STS_ID'             => \EEM_Registration::status_id_approved,
-                    ),
-                    'Ticket.TKT_deleted' => array('IN', array(true, false)),
-                ),
-                'order_by'   => array('Transaction.TXN_ID' => 'asc', 'REG_count' => 'asc'),
-                'force_join' => array('Transaction', 'Ticket', 'Attendee'),
-                'caps'       => \EEM_Base::caps_read_admin,
-            ), $event_id);
-            if ($event_id) {
-                $query_params[0]['EVT_ID'] = $event_id;
-            } else {
-                $query_params['force_join'][] = 'Event';
-            }
-        }
-        if (! isset($query_params['force_join'])) {
-            $query_params['force_join'] = array('Event', 'Transaction', 'Ticket', 'Attendee');
-        }
-        $job_parameters->add_extra_data('query_params', $query_params);
-        $question_labels = $this->_get_question_labels($query_params);
-        $job_parameters->add_extra_data('question_labels', $question_labels);
-        $job_parameters->set_job_size(
-            \EEM_Registration::instance()->count(
-                array_diff_key(
-                    $query_params,
-                    array_flip(
-                        array('limit')
-                    )
-                )
-            )
-        );
-        // we should also set the header columns
-        $csv_data_for_row = $this->get_csv_data_for(
-            $event_id,
-            0,
-            1,
-            $job_parameters->extra_datum('question_labels'),
-            $job_parameters->extra_datum('query_params')
-        );
-        EEH_Export::write_data_array_to_csv($filepath, $csv_data_for_row, true);
-        // if we actually processed a row there, record it
-        if ($job_parameters->job_size()) {
-            $job_parameters->mark_processed(1);
-        }
-        return new JobStepResponse(
-            $job_parameters,
-            __('Registrations report started successfully...', 'event_espresso')
-        );
-    }
+	// phpcs:disable PSR1.Methods.CamelCapsMethodName.NotCamelCaps
+	// phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
+	/**
+	 * Performs any necessary setup for starting the job. This is also a good
+	 * place to setup the $job_arguments which will be used for subsequent HTTP requests
+	 * when continue_job will be called
+	 *
+	 * @param JobParameters $job_parameters
+	 * @throws BatchRequestException
+	 * @return JobStepResponse
+	 */
+	public function create_job(JobParameters $job_parameters)
+	{
+		$event_id = intval($job_parameters->request_datum('EVT_ID', '0'));
+		if (! \EE_Capabilities::instance()->current_user_can('ee_read_registrations', 'generating_report')) {
+			throw new BatchRequestException(__('You do not have permission to view registrations', 'event_espresso'));
+		}
+		$filepath = $this->create_file_from_job_with_name(
+			$job_parameters->job_id(),
+			$this->get_filename($event_id)
+		);
+		$job_parameters->add_extra_data('filepath', $filepath);
+		if ($job_parameters->request_datum('use_filters', false)) {
+			$query_params = maybe_unserialize(stripslashes($job_parameters->request_datum('filters', array())));
+		} else {
+			$query_params = apply_filters('FHEE__EE_Export__report_registration_for_event', array(
+				array(
+					'OR'                 => array(
+						// don't include registrations from failed or abandoned transactions...
+						'Transaction.STS_ID' => array(
+							'NOT IN',
+							array(
+								EEM_Transaction::failed_status_code,
+								EEM_Transaction::abandoned_status_code,
+							),
+						),
+						// unless the registration is approved, in which case include it regardless of transaction status
+						'STS_ID'             => \EEM_Registration::status_id_approved,
+					),
+					'Ticket.TKT_deleted' => array('IN', array(true, false)),
+				),
+				'order_by'   => array('Transaction.TXN_ID' => 'asc', 'REG_count' => 'asc'),
+				'force_join' => array('Transaction', 'Ticket', 'Attendee'),
+				'caps'       => \EEM_Base::caps_read_admin,
+			), $event_id);
+			if ($event_id) {
+				$query_params[0]['EVT_ID'] = $event_id;
+			} else {
+				$query_params['force_join'][] = 'Event';
+			}
+		}
+		if (! isset($query_params['force_join'])) {
+			$query_params['force_join'] = array('Event', 'Transaction', 'Ticket', 'Attendee');
+		}
+		$job_parameters->add_extra_data('query_params', $query_params);
+		$question_labels = $this->_get_question_labels($query_params);
+		$job_parameters->add_extra_data('question_labels', $question_labels);
+		$job_parameters->set_job_size(
+			\EEM_Registration::instance()->count(
+				array_diff_key(
+					$query_params,
+					array_flip(
+						array('limit')
+					)
+				)
+			)
+		);
+		// we should also set the header columns
+		$csv_data_for_row = $this->get_csv_data_for(
+			$event_id,
+			0,
+			1,
+			$job_parameters->extra_datum('question_labels'),
+			$job_parameters->extra_datum('query_params')
+		);
+		EEH_Export::write_data_array_to_csv($filepath, $csv_data_for_row, true);
+		// if we actually processed a row there, record it
+		if ($job_parameters->job_size()) {
+			$job_parameters->mark_processed(1);
+		}
+		return new JobStepResponse(
+			$job_parameters,
+			__('Registrations report started successfully...', 'event_espresso')
+		);
+	}
 
 
-    /**
-     * Gets the filename
-     *
-     * @return string
-     */
-    protected function get_filename()
-    {
-        return apply_filters(
-            'FHEE__EventEspressoBatchRequest__JobHandlers__RegistrationsReport__get_filename',
-            sprintf(
-                "event-espresso-registrations-%s.csv",
-                str_replace(array(':', ' '), '-', current_time('mysql'))
-            )
-        );
-    }
+	/**
+	 * Gets the filename
+	 *
+	 * @return string
+	 */
+	protected function get_filename()
+	{
+		return apply_filters(
+			'FHEE__EventEspressoBatchRequest__JobHandlers__RegistrationsReport__get_filename',
+			sprintf(
+				"event-espresso-registrations-%s.csv",
+				str_replace(array(':', ' '), '-', current_time('mysql'))
+			)
+		);
+	}
 
 
-    /**
-     * Gets the questions which are to be used for this report, so they
-     * can be remembered for later
-     *
-     * @param array $registration_query_params
-     * @return array question admin labels to be used for this report
-     */
-    protected function _get_question_labels($registration_query_params)
-    {
-        $where = isset($registration_query_params[0]) ? $registration_query_params[0] : null;
-        $question_query_params = array();
-        if ($where !== null) {
-            $question_query_params = array(
-                $this->_change_registration_where_params_to_question_where_params($registration_query_params[0]),
-            );
-        }
-        // Make sure it's not a system question
-        $question_query_params[0]['OR*not-system-questions'] = [
-            'QST_system' => '',
-            'QST_system*null' => ['IS_NULL']
-        ];
-        if (apply_filters(
-            'FHEE__EventEspressoBatchRequest__JobHandlers__RegistrationsReport___get_question_labels__only_include_answered_questions',
-            false,
-            $registration_query_params
-        )) {
-            $question_query_params[0]['Answer.ANS_ID'] = array('IS_NOT_NULL');
-        }
-        $question_query_params['group_by'] = array('QST_ID');
-        return array_unique(EEM_Question::instance()->get_col($question_query_params, 'QST_admin_label'));
-    }
+	/**
+	 * Gets the questions which are to be used for this report, so they
+	 * can be remembered for later
+	 *
+	 * @param array $registration_query_params
+	 * @return array question admin labels to be used for this report
+	 */
+	protected function _get_question_labels($registration_query_params)
+	{
+		$where = isset($registration_query_params[0]) ? $registration_query_params[0] : null;
+		$question_query_params = array();
+		if ($where !== null) {
+			$question_query_params = array(
+				$this->_change_registration_where_params_to_question_where_params($registration_query_params[0]),
+			);
+		}
+		// Make sure it's not a system question
+		$question_query_params[0]['OR*not-system-questions'] = [
+			'QST_system' => '',
+			'QST_system*null' => ['IS_NULL']
+		];
+		if (apply_filters(
+			'FHEE__EventEspressoBatchRequest__JobHandlers__RegistrationsReport___get_question_labels__only_include_answered_questions',
+			false,
+			$registration_query_params
+		)) {
+			$question_query_params[0]['Answer.ANS_ID'] = array('IS_NOT_NULL');
+		}
+		$question_query_params['group_by'] = array('QST_ID');
+		return array_unique(EEM_Question::instance()->get_col($question_query_params, 'QST_admin_label'));
+	}
 
 
-    /**
-     * Takes where params meant for registrations and changes them to work for questions
-     *
-     * @param array $reg_where_params
-     * @return array
-     */
-    protected function _change_registration_where_params_to_question_where_params($reg_where_params)
-    {
-        $question_where_params = array();
-        foreach ($reg_where_params as $key => $val) {
-            if (\EEM_Registration::instance()->is_logic_query_param_key($key)) {
-                $question_where_params[ $key ] = $this->_change_registration_where_params_to_question_where_params($val);
-            } else {
-                // it's a normal where condition
-                $question_where_params[ 'Question_Group.Event.Registration.' . $key ] = $val;
-            }
-        }
-        return $question_where_params;
-    }
+	/**
+	 * Takes where params meant for registrations and changes them to work for questions
+	 *
+	 * @param array $reg_where_params
+	 * @return array
+	 */
+	protected function _change_registration_where_params_to_question_where_params($reg_where_params)
+	{
+		$question_where_params = array();
+		foreach ($reg_where_params as $key => $val) {
+			if (\EEM_Registration::instance()->is_logic_query_param_key($key)) {
+				$question_where_params[ $key ] = $this->_change_registration_where_params_to_question_where_params($val);
+			} else {
+				// it's a normal where condition
+				$question_where_params[ 'Question_Group.Event.Registration.' . $key ] = $val;
+			}
+		}
+		return $question_where_params;
+	}
 
 
-    /**
-     * Performs another step of the job
-     *
-     * @param JobParameters $job_parameters
-     * @param int           $batch_size
-     * @return JobStepResponse
-     * @throws \EE_Error
-     */
-    public function continue_job(JobParameters $job_parameters, $batch_size = 50)
-    {
-        if ($job_parameters->units_processed() < $job_parameters->job_size()) {
-            $csv_data = $this->get_csv_data_for(
-                $job_parameters->request_datum('EVT_ID', '0'),
-                $job_parameters->units_processed(),
-                $batch_size,
-                $job_parameters->extra_datum('question_labels'),
-                $job_parameters->extra_datum('query_params')
-            );
-            EEH_Export::write_data_array_to_csv($job_parameters->extra_datum('filepath'), $csv_data, false);
-            $units_processed = count($csv_data);
-        } else {
-            $csv_data = array();
-            $units_processed = 0;
-        }
-        $job_parameters->mark_processed($units_processed);
-        $extra_response_data = array(
-            'file_url' => '',
-        );
-        if ($units_processed < $batch_size) {
-            $job_parameters->set_status(JobParameters::status_complete);
-            $extra_response_data['file_url'] = $this->get_url_to_file($job_parameters->extra_datum('filepath'));
-        }
+	/**
+	 * Performs another step of the job
+	 *
+	 * @param JobParameters $job_parameters
+	 * @param int           $batch_size
+	 * @return JobStepResponse
+	 * @throws \EE_Error
+	 */
+	public function continue_job(JobParameters $job_parameters, $batch_size = 50)
+	{
+		if ($job_parameters->units_processed() < $job_parameters->job_size()) {
+			$csv_data = $this->get_csv_data_for(
+				$job_parameters->request_datum('EVT_ID', '0'),
+				$job_parameters->units_processed(),
+				$batch_size,
+				$job_parameters->extra_datum('question_labels'),
+				$job_parameters->extra_datum('query_params')
+			);
+			EEH_Export::write_data_array_to_csv($job_parameters->extra_datum('filepath'), $csv_data, false);
+			$units_processed = count($csv_data);
+		} else {
+			$csv_data = array();
+			$units_processed = 0;
+		}
+		$job_parameters->mark_processed($units_processed);
+		$extra_response_data = array(
+			'file_url' => '',
+		);
+		if ($units_processed < $batch_size) {
+			$job_parameters->set_status(JobParameters::status_complete);
+			$extra_response_data['file_url'] = $this->get_url_to_file($job_parameters->extra_datum('filepath'));
+		}
 
-        return new JobStepResponse(
-            $job_parameters,
-            sprintf(__('Wrote %1$s rows to report CSV file...', 'event_espresso'), count((array) $csv_data)),
-            $extra_response_data
-        );
-    }
+		return new JobStepResponse(
+			$job_parameters,
+			sprintf(__('Wrote %1$s rows to report CSV file...', 'event_espresso'), count((array) $csv_data)),
+			$extra_response_data
+		);
+	}
 
 
-    /**
-     * Gets the csv data for a batch of registrations
-     *
-     * @param int|null $event_id
-     * @param int $offset
-     * @param int $limit
-     * @param array $question_labels the IDs for all the questions which were answered by someone in this selection
-     * @param array $query_params for using where querying the model
-     * @return array top-level keys are numeric, next-level keys are column headers
-     * @throws \EE_Error
-     */
-    public function get_csv_data_for($event_id, $offset, $limit, $question_labels, $query_params)
-    {
-        $reg_fields_to_include = array(
-            'TXN_ID',
-            'ATT_ID',
-            'REG_ID',
-            'REG_date',
-            'REG_code',
-            'REG_count',
-            'REG_final_price',
-        );
-        $att_fields_to_include = array(
-            'ATT_fname',
-            'ATT_lname',
-            'ATT_email',
-            'ATT_address',
-            'ATT_address2',
-            'ATT_city',
-            'STA_ID',
-            'CNT_ISO',
-            'ATT_zip',
-            'ATT_phone',
-        );
-        $registrations_csv_ready_array = array();
-        $reg_model = EE_Registry::instance()->load_model('Registration');
-        $query_params['limit'] = array($offset, $limit);
-        $registration_rows = $reg_model->get_all_wpdb_results($query_params);
-        $registration_ids = array();
-        foreach ($registration_rows as $reg_row) {
-            $registration_ids[] = intval($reg_row['Registration.REG_ID']);
-        }
-        foreach ($registration_rows as $reg_row) {
-            if (is_array($reg_row)) {
-                $reg_csv_array = array();
-                if (! $event_id) {
-                    // get the event's name and Id
-                    $reg_csv_array[ (string) __('Event', 'event_espresso') ] = sprintf(
-                        /* translators: 1: event name, 2: event ID */
-                        __('%1$s (%2$s)', 'event_espresso'),
-                        EEH_Export::prepare_value_from_db_for_display(
-                            EEM_Event::instance(),
-                            'EVT_name',
-                            $reg_row['Event_CPT.post_title']
-                        ),
-                        $reg_row['Event_CPT.ID']
-                    );
-                }
-                $is_primary_reg = $reg_row['Registration.REG_count'] == '1' ? true : false;
-                /*@var $reg_row EE_Registration */
-                foreach ($reg_fields_to_include as $field_name) {
-                    $field = $reg_model->field_settings_for($field_name);
-                    if ($field_name == 'REG_final_price') {
-                        $value = EEH_Export::prepare_value_from_db_for_display(
-                            $reg_model,
-                            $field_name,
-                            $reg_row['Registration.REG_final_price'],
-                            'localized_float'
-                        );
-                    } elseif ($field_name == 'REG_count') {
-                        $value = sprintf(
-                            /* translators: 1: number of registration in group (REG_count), 2: registration group size (REG_group_size) */
-                            __('%1$s of %2$s', 'event_espresso'),
-                            EEH_Export::prepare_value_from_db_for_display(
-                                $reg_model,
-                                'REG_count',
-                                $reg_row['Registration.REG_count']
-                            ),
-                            EEH_Export::prepare_value_from_db_for_display(
-                                $reg_model,
-                                'REG_group_size',
-                                $reg_row['Registration.REG_group_size']
-                            )
-                        );
-                    } elseif ($field_name == 'REG_date') {
-                        $value = EEH_Export::prepare_value_from_db_for_display(
-                            $reg_model,
-                            $field_name,
-                            $reg_row['Registration.REG_date'],
-                            'no_html'
-                        );
-                    } else {
-                        $value = EEH_Export::prepare_value_from_db_for_display(
-                            $reg_model,
-                            $field_name,
-                            $reg_row[ $field->get_qualified_column() ]
-                        );
-                    }
-                    $reg_csv_array[ EEH_Export::get_column_name_for_field($field) ] = $value;
-                    if ($field_name == 'REG_final_price') {
-                        // add a column named Currency after the final price
-                        $reg_csv_array[ (string) __("Currency", "event_espresso") ] = \EE_Config::instance()->currency->code;
-                    }
-                }
-                // get pretty status
-                $stati = EEM_Status::instance()->localized_status(
-                    array(
-                        $reg_row['Registration.STS_ID']     => __('unknown', 'event_espresso'),
-                        $reg_row['TransactionTable.STS_ID'] => __('unknown', 'event_espresso'),
-                    ),
-                    false,
-                    'sentence'
-                );
-                $reg_csv_array[ (string) __("Registration Status", 'event_espresso') ] = $stati[ $reg_row['Registration.STS_ID'] ];
-                // get pretty transaction status
-                $reg_csv_array[ (string) __("Transaction Status", 'event_espresso') ] = $stati[ $reg_row['TransactionTable.STS_ID'] ];
-                $reg_csv_array[ (string) __('Transaction Amount Due', 'event_espresso') ] = $is_primary_reg
-                    ? EEH_Export::prepare_value_from_db_for_display(
-                        EEM_Transaction::instance(),
-                        'TXN_total',
-                        $reg_row['TransactionTable.TXN_total'],
-                        'localized_float'
-                    ) : '0.00';
-                $reg_csv_array[ (string) __('Amount Paid', 'event_espresso') ] = $is_primary_reg
-                    ? EEH_Export::prepare_value_from_db_for_display(
-                        EEM_Transaction::instance(),
-                        'TXN_paid',
-                        $reg_row['TransactionTable.TXN_paid'],
-                        'localized_float'
-                    ) : '0.00';
-                $payment_methods = array();
-                $gateway_txn_ids_etc = array();
-                $payment_times = array();
-                if ($is_primary_reg && $reg_row['TransactionTable.TXN_ID']) {
-                    $payments_info = EEM_Payment::instance()->get_all_wpdb_results(
-                        array(
-                            array(
-                                'TXN_ID' => $reg_row['TransactionTable.TXN_ID'],
-                                'STS_ID' => EEM_Payment::status_id_approved,
-                            ),
-                            'force_join' => array('Payment_Method'),
-                        ),
-                        ARRAY_A,
-                        'Payment_Method.PMD_admin_name as name, Payment.PAY_txn_id_chq_nmbr as gateway_txn_id, Payment.PAY_timestamp as payment_time'
-                    );
-                    foreach ($payments_info as $payment_method_and_gateway_txn_id) {
-                        $payment_methods[] = isset($payment_method_and_gateway_txn_id['name'])
-                            ? $payment_method_and_gateway_txn_id['name'] : __('Unknown', 'event_espresso');
-                        $gateway_txn_ids_etc[] = isset($payment_method_and_gateway_txn_id['gateway_txn_id'])
-                            ? $payment_method_and_gateway_txn_id['gateway_txn_id'] : '';
-                        $payment_times[] = isset($payment_method_and_gateway_txn_id['payment_time'])
-                            ? $payment_method_and_gateway_txn_id['payment_time'] : '';
-                    }
-                }
-                $reg_csv_array[ (string) __('Payment Date(s)', 'event_espresso') ] = implode(',', $payment_times);
-                $reg_csv_array[ (string) __('Payment Method(s)', 'event_espresso') ] = implode(",", $payment_methods);
-                $reg_csv_array[ (string) __('Gateway Transaction ID(s)', 'event_espresso') ] = implode(
-                    ',',
-                    $gateway_txn_ids_etc
-                );
-                // get whether or not the user has checked in
-                $reg_csv_array[ (string) __("Check-Ins", "event_espresso") ] = $reg_model->count_related(
-                    $reg_row['Registration.REG_ID'],
-                    'Checkin'
-                );
-                // get ticket of registration and its price
-                $ticket_model = EE_Registry::instance()->load_model('Ticket');
-                if ($reg_row['Ticket.TKT_ID']) {
-                    $ticket_name = EEH_Export::prepare_value_from_db_for_display(
-                        $ticket_model,
-                        'TKT_name',
-                        $reg_row['Ticket.TKT_name']
-                    );
-                    $datetimes_strings = array();
-                    foreach (EEM_Datetime::instance()->get_all_wpdb_results(
-                        array(
-                            array('Ticket.TKT_ID' => $reg_row['Ticket.TKT_ID']),
-                            'order_by'                 => array('DTT_EVT_start' => 'ASC'),
-                            'default_where_conditions' => 'none',
-                        )
-                    ) as $datetime) {
-                        $datetimes_strings[] = EEH_Export::prepare_value_from_db_for_display(
-                            EEM_Datetime::instance(),
-                            'DTT_EVT_start',
-                            $datetime['Datetime.DTT_EVT_start']
-                        );
-                    }
-                } else {
-                    $ticket_name = __('Unknown', 'event_espresso');
-                    $datetimes_strings = array(__('Unknown', 'event_espresso'));
-                }
-                $reg_csv_array[ (string) $ticket_model->field_settings_for('TKT_name')->get_nicename() ] = $ticket_name;
-                $reg_csv_array[ (string) __("Datetimes of Ticket", "event_espresso") ] = implode(", ", $datetimes_strings);
-                // get datetime(s) of registration
-                // add attendee columns
-                foreach ($att_fields_to_include as $att_field_name) {
-                    $field_obj = EEM_Attendee::instance()->field_settings_for($att_field_name);
-                    if ($reg_row['Attendee_CPT.ID']) {
-                        if ($att_field_name == 'STA_ID') {
-                            $value = EEM_State::instance()->get_var(
-                                array(array('STA_ID' => $reg_row['Attendee_Meta.STA_ID'])),
-                                'STA_name'
-                            );
-                        } elseif ($att_field_name == 'CNT_ISO') {
-                            $value = EEM_Country::instance()->get_var(
-                                array(array('CNT_ISO' => $reg_row['Attendee_Meta.CNT_ISO'])),
-                                'CNT_name'
-                            );
-                        } else {
-                            $value = EEH_Export::prepare_value_from_db_for_display(
-                                EEM_Attendee::instance(),
-                                $att_field_name,
-                                $reg_row[ $field_obj->get_qualified_column() ]
-                            );
-                        }
-                    } else {
-                        $value = '';
-                    }
-                    $reg_csv_array[ EEH_Export::get_column_name_for_field($field_obj) ] = $value;
-                }
-                // make sure each registration has the same questions in the same order
-                foreach ($question_labels as $question_label) {
-                    if (! isset($reg_csv_array[ $question_label ])) {
-                        $reg_csv_array[ $question_label ] = null;
-                    }
-                }
-                $answers = EEM_Answer::instance()->get_all_wpdb_results(array(
-                    array('REG_ID' => $reg_row['Registration.REG_ID']),
-                    'force_join' => array('Question'),
-                ));
-                // now fill out the questions THEY answered
-                foreach ($answers as $answer_row) {
-                    if ($answer_row['Question.QST_system']) {
-                        // it's an answer to a system question. That was already displayed as part of the attendee
-                        // fields, so don't write it out again thanks.
-                        continue;
-                    }
-                    if ($answer_row['Question.QST_ID']) {
-                        $question_label = EEH_Export::prepare_value_from_db_for_display(
-                            EEM_Question::instance(),
-                            'QST_admin_label',
-                            $answer_row['Question.QST_admin_label']
-                        );
-                    } else {
-                        $question_label = sprintf(__('Question $s', 'event_espresso'), $answer_row['Answer.QST_ID']);
-                    }
-                    if (isset($answer_row['Question.QST_type'])
-                        && $answer_row['Question.QST_type'] == EEM_Question::QST_type_state
-                    ) {
-                        $reg_csv_array[ $question_label ] = EEM_State::instance()->get_state_name_by_ID(
-                            $answer_row['Answer.ANS_value']
-                        );
-                    } else {
-                        // this isn't for html, so don't show html entities
-                        $reg_csv_array[ $question_label ] = html_entity_decode(
-                            EEH_Export::prepare_value_from_db_for_display(
-                                EEM_Answer::instance(),
-                                'ANS_value',
-                                $answer_row['Answer.ANS_value']
-                            )
-                        );
-                    }
-                }
+	/**
+	 * Gets the csv data for a batch of registrations
+	 *
+	 * @param int|null $event_id
+	 * @param int $offset
+	 * @param int $limit
+	 * @param array $question_labels the IDs for all the questions which were answered by someone in this selection
+	 * @param array $query_params for using where querying the model
+	 * @return array top-level keys are numeric, next-level keys are column headers
+	 * @throws \EE_Error
+	 */
+	public function get_csv_data_for($event_id, $offset, $limit, $question_labels, $query_params)
+	{
+		$reg_fields_to_include = array(
+			'TXN_ID',
+			'ATT_ID',
+			'REG_ID',
+			'REG_date',
+			'REG_code',
+			'REG_count',
+			'REG_final_price',
+		);
+		$att_fields_to_include = array(
+			'ATT_fname',
+			'ATT_lname',
+			'ATT_email',
+			'ATT_address',
+			'ATT_address2',
+			'ATT_city',
+			'STA_ID',
+			'CNT_ISO',
+			'ATT_zip',
+			'ATT_phone',
+		);
+		$registrations_csv_ready_array = array();
+		$reg_model = EE_Registry::instance()->load_model('Registration');
+		$query_params['limit'] = array($offset, $limit);
+		$registration_rows = $reg_model->get_all_wpdb_results($query_params);
+		$registration_ids = array();
+		foreach ($registration_rows as $reg_row) {
+			$registration_ids[] = intval($reg_row['Registration.REG_ID']);
+		}
+		foreach ($registration_rows as $reg_row) {
+			if (is_array($reg_row)) {
+				$reg_csv_array = array();
+				if (! $event_id) {
+					// get the event's name and Id
+					$reg_csv_array[ (string) __('Event', 'event_espresso') ] = sprintf(
+						/* translators: 1: event name, 2: event ID */
+						__('%1$s (%2$s)', 'event_espresso'),
+						EEH_Export::prepare_value_from_db_for_display(
+							EEM_Event::instance(),
+							'EVT_name',
+							$reg_row['Event_CPT.post_title']
+						),
+						$reg_row['Event_CPT.ID']
+					);
+				}
+				$is_primary_reg = $reg_row['Registration.REG_count'] == '1' ? true : false;
+				/*@var $reg_row EE_Registration */
+				foreach ($reg_fields_to_include as $field_name) {
+					$field = $reg_model->field_settings_for($field_name);
+					if ($field_name == 'REG_final_price') {
+						$value = EEH_Export::prepare_value_from_db_for_display(
+							$reg_model,
+							$field_name,
+							$reg_row['Registration.REG_final_price'],
+							'localized_float'
+						);
+					} elseif ($field_name == 'REG_count') {
+						$value = sprintf(
+							/* translators: 1: number of registration in group (REG_count), 2: registration group size (REG_group_size) */
+							__('%1$s of %2$s', 'event_espresso'),
+							EEH_Export::prepare_value_from_db_for_display(
+								$reg_model,
+								'REG_count',
+								$reg_row['Registration.REG_count']
+							),
+							EEH_Export::prepare_value_from_db_for_display(
+								$reg_model,
+								'REG_group_size',
+								$reg_row['Registration.REG_group_size']
+							)
+						);
+					} elseif ($field_name == 'REG_date') {
+						$value = EEH_Export::prepare_value_from_db_for_display(
+							$reg_model,
+							$field_name,
+							$reg_row['Registration.REG_date'],
+							'no_html'
+						);
+					} else {
+						$value = EEH_Export::prepare_value_from_db_for_display(
+							$reg_model,
+							$field_name,
+							$reg_row[ $field->get_qualified_column() ]
+						);
+					}
+					$reg_csv_array[ EEH_Export::get_column_name_for_field($field) ] = $value;
+					if ($field_name == 'REG_final_price') {
+						// add a column named Currency after the final price
+						$reg_csv_array[ (string) __("Currency", "event_espresso") ] = \EE_Config::instance()->currency->code;
+					}
+				}
+				// get pretty status
+				$stati = EEM_Status::instance()->localized_status(
+					array(
+						$reg_row['Registration.STS_ID']     => __('unknown', 'event_espresso'),
+						$reg_row['TransactionTable.STS_ID'] => __('unknown', 'event_espresso'),
+					),
+					false,
+					'sentence'
+				);
+				$reg_csv_array[ (string) __("Registration Status", 'event_espresso') ] = $stati[ $reg_row['Registration.STS_ID'] ];
+				// get pretty transaction status
+				$reg_csv_array[ (string) __("Transaction Status", 'event_espresso') ] = $stati[ $reg_row['TransactionTable.STS_ID'] ];
+				$reg_csv_array[ (string) __('Transaction Amount Due', 'event_espresso') ] = $is_primary_reg
+					? EEH_Export::prepare_value_from_db_for_display(
+						EEM_Transaction::instance(),
+						'TXN_total',
+						$reg_row['TransactionTable.TXN_total'],
+						'localized_float'
+					) : '0.00';
+				$reg_csv_array[ (string) __('Amount Paid', 'event_espresso') ] = $is_primary_reg
+					? EEH_Export::prepare_value_from_db_for_display(
+						EEM_Transaction::instance(),
+						'TXN_paid',
+						$reg_row['TransactionTable.TXN_paid'],
+						'localized_float'
+					) : '0.00';
+				$payment_methods = array();
+				$gateway_txn_ids_etc = array();
+				$payment_times = array();
+				if ($is_primary_reg && $reg_row['TransactionTable.TXN_ID']) {
+					$payments_info = EEM_Payment::instance()->get_all_wpdb_results(
+						array(
+							array(
+								'TXN_ID' => $reg_row['TransactionTable.TXN_ID'],
+								'STS_ID' => EEM_Payment::status_id_approved,
+							),
+							'force_join' => array('Payment_Method'),
+						),
+						ARRAY_A,
+						'Payment_Method.PMD_admin_name as name, Payment.PAY_txn_id_chq_nmbr as gateway_txn_id, Payment.PAY_timestamp as payment_time'
+					);
+					foreach ($payments_info as $payment_method_and_gateway_txn_id) {
+						$payment_methods[] = isset($payment_method_and_gateway_txn_id['name'])
+							? $payment_method_and_gateway_txn_id['name'] : __('Unknown', 'event_espresso');
+						$gateway_txn_ids_etc[] = isset($payment_method_and_gateway_txn_id['gateway_txn_id'])
+							? $payment_method_and_gateway_txn_id['gateway_txn_id'] : '';
+						$payment_times[] = isset($payment_method_and_gateway_txn_id['payment_time'])
+							? $payment_method_and_gateway_txn_id['payment_time'] : '';
+					}
+				}
+				$reg_csv_array[ (string) __('Payment Date(s)', 'event_espresso') ] = implode(',', $payment_times);
+				$reg_csv_array[ (string) __('Payment Method(s)', 'event_espresso') ] = implode(",", $payment_methods);
+				$reg_csv_array[ (string) __('Gateway Transaction ID(s)', 'event_espresso') ] = implode(
+					',',
+					$gateway_txn_ids_etc
+				);
+				// get whether or not the user has checked in
+				$reg_csv_array[ (string) __("Check-Ins", "event_espresso") ] = $reg_model->count_related(
+					$reg_row['Registration.REG_ID'],
+					'Checkin'
+				);
+				// get ticket of registration and its price
+				$ticket_model = EE_Registry::instance()->load_model('Ticket');
+				if ($reg_row['Ticket.TKT_ID']) {
+					$ticket_name = EEH_Export::prepare_value_from_db_for_display(
+						$ticket_model,
+						'TKT_name',
+						$reg_row['Ticket.TKT_name']
+					);
+					$datetimes_strings = array();
+					foreach (EEM_Datetime::instance()->get_all_wpdb_results(
+						array(
+							array('Ticket.TKT_ID' => $reg_row['Ticket.TKT_ID']),
+							'order_by'                 => array('DTT_EVT_start' => 'ASC'),
+							'default_where_conditions' => 'none',
+						)
+					) as $datetime) {
+						$datetimes_strings[] = EEH_Export::prepare_value_from_db_for_display(
+							EEM_Datetime::instance(),
+							'DTT_EVT_start',
+							$datetime['Datetime.DTT_EVT_start']
+						);
+					}
+				} else {
+					$ticket_name = __('Unknown', 'event_espresso');
+					$datetimes_strings = array(__('Unknown', 'event_espresso'));
+				}
+				$reg_csv_array[ (string) $ticket_model->field_settings_for('TKT_name')->get_nicename() ] = $ticket_name;
+				$reg_csv_array[ (string) __("Datetimes of Ticket", "event_espresso") ] = implode(", ", $datetimes_strings);
+				// get datetime(s) of registration
+				// add attendee columns
+				foreach ($att_fields_to_include as $att_field_name) {
+					$field_obj = EEM_Attendee::instance()->field_settings_for($att_field_name);
+					if ($reg_row['Attendee_CPT.ID']) {
+						if ($att_field_name == 'STA_ID') {
+							$value = EEM_State::instance()->get_var(
+								array(array('STA_ID' => $reg_row['Attendee_Meta.STA_ID'])),
+								'STA_name'
+							);
+						} elseif ($att_field_name == 'CNT_ISO') {
+							$value = EEM_Country::instance()->get_var(
+								array(array('CNT_ISO' => $reg_row['Attendee_Meta.CNT_ISO'])),
+								'CNT_name'
+							);
+						} else {
+							$value = EEH_Export::prepare_value_from_db_for_display(
+								EEM_Attendee::instance(),
+								$att_field_name,
+								$reg_row[ $field_obj->get_qualified_column() ]
+							);
+						}
+					} else {
+						$value = '';
+					}
+					$reg_csv_array[ EEH_Export::get_column_name_for_field($field_obj) ] = $value;
+				}
+				// make sure each registration has the same questions in the same order
+				foreach ($question_labels as $question_label) {
+					if (! isset($reg_csv_array[ $question_label ])) {
+						$reg_csv_array[ $question_label ] = null;
+					}
+				}
+				$answers = EEM_Answer::instance()->get_all_wpdb_results(array(
+					array('REG_ID' => $reg_row['Registration.REG_ID']),
+					'force_join' => array('Question'),
+				));
+				// now fill out the questions THEY answered
+				foreach ($answers as $answer_row) {
+					if ($answer_row['Question.QST_system']) {
+						// it's an answer to a system question. That was already displayed as part of the attendee
+						// fields, so don't write it out again thanks.
+						continue;
+					}
+					if ($answer_row['Question.QST_ID']) {
+						$question_label = EEH_Export::prepare_value_from_db_for_display(
+							EEM_Question::instance(),
+							'QST_admin_label',
+							$answer_row['Question.QST_admin_label']
+						);
+					} else {
+						$question_label = sprintf(__('Question $s', 'event_espresso'), $answer_row['Answer.QST_ID']);
+					}
+					if (isset($answer_row['Question.QST_type'])
+						&& $answer_row['Question.QST_type'] == EEM_Question::QST_type_state
+					) {
+						$reg_csv_array[ $question_label ] = EEM_State::instance()->get_state_name_by_ID(
+							$answer_row['Answer.ANS_value']
+						);
+					} else {
+						// this isn't for html, so don't show html entities
+						$reg_csv_array[ $question_label ] = html_entity_decode(
+							EEH_Export::prepare_value_from_db_for_display(
+								EEM_Answer::instance(),
+								'ANS_value',
+								$answer_row['Answer.ANS_value']
+							)
+						);
+					}
+				}
 
-                /**
-                 * Filter to change the contents of each row of the registrations report CSV file.
-                 * This can be used to add or remote columns from the CSV file, or change their values.
-                 * Note when using: all rows in the CSV should have the same columns.
-                 * @param array $reg_csv_array keys are the column names, values are their cell values
-                 * @param array $reg_row one entry from EEM_Registration::get_all_wpdb_results()
-                 */
-                $registrations_csv_ready_array[] = apply_filters(
-                    'FHEE__EventEspressoBatchRequest__JobHandlers__RegistrationsReport__reg_csv_array',
-                    $reg_csv_array,
-                    $reg_row
-                );
-            }
-        }
-        // if we couldn't export anything, we want to at least show the column headers
-        if (empty($registrations_csv_ready_array)) {
-            $reg_csv_array = array();
-            $model_and_fields_to_include = array(
-                'Registration' => $reg_fields_to_include,
-                'Attendee'     => $att_fields_to_include,
-            );
-            foreach ($model_and_fields_to_include as $model_name => $field_list) {
-                $model = EE_Registry::instance()->load_model($model_name);
-                foreach ($field_list as $field_name) {
-                    $field = $model->field_settings_for($field_name);
-                    $reg_csv_array[ EEH_Export::get_column_name_for_field($field) ] = null;
-                }
-            }
-            $registrations_csv_ready_array[] = $reg_csv_array;
-        }
-        return $registrations_csv_ready_array;
-    }
+				/**
+				 * Filter to change the contents of each row of the registrations report CSV file.
+				 * This can be used to add or remote columns from the CSV file, or change their values.
+				 * Note when using: all rows in the CSV should have the same columns.
+				 * @param array $reg_csv_array keys are the column names, values are their cell values
+				 * @param array $reg_row one entry from EEM_Registration::get_all_wpdb_results()
+				 */
+				$registrations_csv_ready_array[] = apply_filters(
+					'FHEE__EventEspressoBatchRequest__JobHandlers__RegistrationsReport__reg_csv_array',
+					$reg_csv_array,
+					$reg_row
+				);
+			}
+		}
+		// if we couldn't export anything, we want to at least show the column headers
+		if (empty($registrations_csv_ready_array)) {
+			$reg_csv_array = array();
+			$model_and_fields_to_include = array(
+				'Registration' => $reg_fields_to_include,
+				'Attendee'     => $att_fields_to_include,
+			);
+			foreach ($model_and_fields_to_include as $model_name => $field_list) {
+				$model = EE_Registry::instance()->load_model($model_name);
+				foreach ($field_list as $field_name) {
+					$field = $model->field_settings_for($field_name);
+					$reg_csv_array[ EEH_Export::get_column_name_for_field($field) ] = null;
+				}
+			}
+			$registrations_csv_ready_array[] = $reg_csv_array;
+		}
+		return $registrations_csv_ready_array;
+	}
 
 
-    /**
-     * Counts total unit to process
-     *
-     * @deprecated since 4.9.19
-     * @param int|array $event_id
-     * @return int
-     */
-    public function count_units_to_process($event_id)
-    {
-        // use the legacy filter
-        if ($event_id) {
-            $query_params[0]['EVT_ID'] = $event_id;
-        } else {
-            $query_params['force_join'][] = 'Event';
-        }
-        return \EEM_Registration::instance()->count($query_params);
-    }
+	/**
+	 * Counts total unit to process
+	 *
+	 * @deprecated since 4.9.19
+	 * @param int|array $event_id
+	 * @return int
+	 */
+	public function count_units_to_process($event_id)
+	{
+		// use the legacy filter
+		if ($event_id) {
+			$query_params[0]['EVT_ID'] = $event_id;
+		} else {
+			$query_params['force_join'][] = 'Event';
+		}
+		return \EEM_Registration::instance()->count($query_params);
+	}
 
 
-    /**
-     * Performs any clean-up logic when we know the job is completed.
-     * In this case, we delete the temporary file
-     *
-     * @param JobParameters $job_parameters
-     * @return boolean
-     */
-    public function cleanup_job(JobParameters $job_parameters)
-    {
-        $this->_file_helper->delete(
-            \EEH_File::remove_filename_from_filepath($job_parameters->extra_datum('filepath')),
-            true,
-            'd'
-        );
-        return new JobStepResponse($job_parameters, __('Cleaned up temporary file', 'event_espresso'));
-    }
+	/**
+	 * Performs any clean-up logic when we know the job is completed.
+	 * In this case, we delete the temporary file
+	 *
+	 * @param JobParameters $job_parameters
+	 * @return boolean
+	 */
+	public function cleanup_job(JobParameters $job_parameters)
+	{
+		$this->_file_helper->delete(
+			\EEH_File::remove_filename_from_filepath($job_parameters->extra_datum('filepath')),
+			true,
+			'd'
+		);
+		return new JobStepResponse($job_parameters, __('Cleaned up temporary file', 'event_espresso'));
+	}
 }

modules/single_page_checkout/reg_steps/attendee_information/attendee_info_single.template.php

Indentation +43 added lines, -43 removed lines

@@ -6,16 +6,16 @@ 
 <?php if (!is_admin()) : ?>
     <p id="spco-attendee_information-pg" class="spco-steps-pg small-text drk-grey-text">
         <?php echo apply_filters(
-            'FHEE__registration_page_attendee_information__attendee_information_pg',
-            sprintf(
-                esc_html__(
-                    'In order to process your registration, we ask you to provide the following information.%1$sPlease note that all fields marked with an asterisk (%2$s) are required.',
-                    'event_espresso'
-                ),
-                '<br />',
-                '<span class="asterisk">*</span>'
-            )
-        ); ?>
+			'FHEE__registration_page_attendee_information__attendee_information_pg',
+			sprintf(
+				esc_html__(
+					'In order to process your registration, we ask you to provide the following information.%1$sPlease note that all fields marked with an asterisk (%2$s) are required.',
+					'event_espresso'
+				),
+				'<br />',
+				'<span class="asterisk">*</span>'
+			)
+		); ?>
 </p>
 <?php endif; ?>
 
@@ -25,8 +25,8 @@ 
 $prev_ticket = 0;
 
 if (count($registrations) > 0) {
-    $ticketID = key($template_args['ticket_count']);
-    ?>
+	$ticketID = key($template_args['ticket_count']);
+	?>
 
     <div id="spco-attendee-panel-dv-<?php echo $ticketID; ?>"
         class="spco-attendee-panel-dv spco-attendee-ticket-<?php echo $ticketID; ?>">
@@ -41,54 +41,54 @@ 
                     <th scope="col" width="" class="jst-left"><?php esc_html_e('Name and Description', 'event_espresso'); ?></th>
                     <th scope="col" width="7.5%" class="jst-rght">
                         <?php esc_html_e(
-                            'Qty',
-                            'event_espresso'
-                        ); ?></th>
+							'Qty',
+							'event_espresso'
+						); ?></th>
                     <th scope="col" width="17.5%" class="jst-rght">
                         <?php esc_html_e(
-                            'Price',
-                            'event_espresso'
-                        ); ?></th>
+							'Price',
+							'event_espresso'
+						); ?></th>
                     <th scope="col" width="17.5%" class="jst-rght">
                         <?php esc_html_e(
-                            'Total',
-                            'event_espresso'
-                        ); ?></th>
+							'Total',
+							'event_espresso'
+						); ?></th>
                 </tr>
                 </thead>
                 <tbody>
                 <?php
-                // Store previous values to avoid duplicated rows.
-                $prev_ticket = 0;
-                // Display all tickets inside.
-                foreach ($registrations as $registration) {
-                    if ($registration instanceof EE_Registration) {
-                        if ($registration->ticket()->ID() !== $prev_ticket) {
-                            echo $ticket_line_item[ $registration->ticket()->ID() ];
-                        }
+				// Store previous values to avoid duplicated rows.
+				$prev_ticket = 0;
+				// Display all tickets inside.
+				foreach ($registrations as $registration) {
+					if ($registration instanceof EE_Registration) {
+						if ($registration->ticket()->ID() !== $prev_ticket) {
+							echo $ticket_line_item[ $registration->ticket()->ID() ];
+						}
 
-                        $prev_ticket = $registration->ticket()->ID();
-                    }
-                }
-                ?>
+						$prev_ticket = $registration->ticket()->ID();
+					}
+				}
+				?>
                 </tbody>
             </table>
         </div><!-- close spco-ticket-info-dv -->
 
         <?php
-        // Display the forms below the table.
-        foreach ($registrations as $registration) {
-            if ($registration instanceof EE_Registration) {
-                // Attendee Questions.
-                $reg_form = EE_Template_Layout::get_subform_name($registration->reg_url_link());
-                echo ${$reg_form};
-            } // if ( $registration instanceof EE_Registration )
-        } // end foreach ( $registrations as $registration )
+		// Display the forms below the table.
+		foreach ($registrations as $registration) {
+			if ($registration instanceof EE_Registration) {
+				// Attendee Questions.
+				$reg_form = EE_Template_Layout::get_subform_name($registration->reg_url_link());
+				echo ${$reg_form};
+			} // if ( $registration instanceof EE_Registration )
+		} // end foreach ( $registrations as $registration )
 
-        ?>
+		?>
     </div><!-- close spco-attendee-panel-dv -->
     <?php
-    echo $default_hidden_inputs;
+	echo $default_hidden_inputs;
 } // end if ( count( $registrations ) > 0 )
 
 ?>

core/libraries/plugin_api/EE_Register_Addon.lib.php

Indentation +1165 added lines, -1165 removed lines

@@ -22,1229 +22,1229 @@
 class EE_Register_Addon implements EEI_Plugin_API
 {
 
-    /**
-     * possibly truncated version of the EE core version string
-     *
-     * @var string
-     */
-    protected static $_core_version = '';
+	/**
+	 * possibly truncated version of the EE core version string
+	 *
+	 * @var string
+	 */
+	protected static $_core_version = '';
 
-    /**
-     * Holds values for registered addons
-     *
-     * @var array
-     */
-    protected static $_settings = array();
+	/**
+	 * Holds values for registered addons
+	 *
+	 * @var array
+	 */
+	protected static $_settings = array();
 
-    /**
-     * @var  array $_incompatible_addons keys are addon SLUGS
-     * (first argument passed to EE_Register_Addon::register()), keys are
-     * their MINIMUM VERSION (with all 5 parts. Eg 1.2.3.rc.004).
-     * Generally this should be used sparingly, as we don't want to muddle up
-     * EE core with knowledge of ALL the addons out there.
-     * If you want NO versions of an addon to run with a certain version of core,
-     * it's usually best to define the addon's "min_core_version" as part of its call
-     * to EE_Register_Addon::register(), rather than using this array with a super high value for its
-     * minimum plugin version.
-     * @access    protected
-     */
-    protected static $_incompatible_addons = array(
-        'Multi_Event_Registration' => '2.0.11.rc.002',
-        'Promotions'               => '1.0.0.rc.084',
-    );
+	/**
+	 * @var  array $_incompatible_addons keys are addon SLUGS
+	 * (first argument passed to EE_Register_Addon::register()), keys are
+	 * their MINIMUM VERSION (with all 5 parts. Eg 1.2.3.rc.004).
+	 * Generally this should be used sparingly, as we don't want to muddle up
+	 * EE core with knowledge of ALL the addons out there.
+	 * If you want NO versions of an addon to run with a certain version of core,
+	 * it's usually best to define the addon's "min_core_version" as part of its call
+	 * to EE_Register_Addon::register(), rather than using this array with a super high value for its
+	 * minimum plugin version.
+	 * @access    protected
+	 */
+	protected static $_incompatible_addons = array(
+		'Multi_Event_Registration' => '2.0.11.rc.002',
+		'Promotions'               => '1.0.0.rc.084',
+	);
 
 
-    /**
-     * We should always be comparing core to a version like '4.3.0.rc.000',
-     * not just '4.3.0'.
-     * So if the addon developer doesn't provide that full version string,
-     * fill in the blanks for them
-     *
-     * @param string $min_core_version
-     * @return string always like '4.3.0.rc.000'
-     */
-    protected static function _effective_version($min_core_version)
-    {
-        // versions: 4 . 3 . 1 . p . 123
-        // offsets:    0 . 1 . 2 . 3 . 4
-        $version_parts = explode('.', $min_core_version);
-        // check they specified the micro version (after 2nd period)
-        if (! isset($version_parts[2])) {
-            $version_parts[2] = '0';
-        }
-        // if they didn't specify the 'p', or 'rc' part. Just assume the lowest possible
-        // soon we can assume that's 'rc', but this current version is 'alpha'
-        if (! isset($version_parts[3])) {
-            $version_parts[3] = 'dev';
-        }
-        if (! isset($version_parts[4])) {
-            $version_parts[4] = '000';
-        }
-        return implode('.', $version_parts);
-    }
+	/**
+	 * We should always be comparing core to a version like '4.3.0.rc.000',
+	 * not just '4.3.0'.
+	 * So if the addon developer doesn't provide that full version string,
+	 * fill in the blanks for them
+	 *
+	 * @param string $min_core_version
+	 * @return string always like '4.3.0.rc.000'
+	 */
+	protected static function _effective_version($min_core_version)
+	{
+		// versions: 4 . 3 . 1 . p . 123
+		// offsets:    0 . 1 . 2 . 3 . 4
+		$version_parts = explode('.', $min_core_version);
+		// check they specified the micro version (after 2nd period)
+		if (! isset($version_parts[2])) {
+			$version_parts[2] = '0';
+		}
+		// if they didn't specify the 'p', or 'rc' part. Just assume the lowest possible
+		// soon we can assume that's 'rc', but this current version is 'alpha'
+		if (! isset($version_parts[3])) {
+			$version_parts[3] = 'dev';
+		}
+		if (! isset($version_parts[4])) {
+			$version_parts[4] = '000';
+		}
+		return implode('.', $version_parts);
+	}
 
 
-    /**
-     * Returns whether or not the min core version requirement of the addon is met
-     *
-     * @param string $min_core_version    the minimum core version required by the addon
-     * @param string $actual_core_version the actual core version, optional
-     * @return boolean
-     */
-    public static function _meets_min_core_version_requirement(
-        $min_core_version,
-        $actual_core_version = EVENT_ESPRESSO_VERSION
-    ) {
-        return version_compare(
-            self::_effective_version($actual_core_version),
-            self::_effective_version($min_core_version),
-            '>='
-        );
-    }
+	/**
+	 * Returns whether or not the min core version requirement of the addon is met
+	 *
+	 * @param string $min_core_version    the minimum core version required by the addon
+	 * @param string $actual_core_version the actual core version, optional
+	 * @return boolean
+	 */
+	public static function _meets_min_core_version_requirement(
+		$min_core_version,
+		$actual_core_version = EVENT_ESPRESSO_VERSION
+	) {
+		return version_compare(
+			self::_effective_version($actual_core_version),
+			self::_effective_version($min_core_version),
+			'>='
+		);
+	}
 
 
-    /**
-     * Method for registering new EE_Addons.
-     * Should be called AFTER AHEE__EE_System__load_espresso_addons but BEFORE
-     * AHEE__EE_System___detect_if_activation_or_upgrade__begin in order to register all its components. However, it
-     * may also be called after the 'activate_plugin' action (when an addon is activated), because an activating addon
-     * won't be loaded by WP until after AHEE__EE_System__load_espresso_addons has fired. If its called after
-     * 'activate_plugin', it registers the addon still, but its components are not registered
-     * (they shouldn't be needed anyways, because it's just an activation request and they won't have a chance to do
-     * anything anyways). Instead, it just sets the newly-activated addon's activation indicator wp option and returns
-     * (so that we can detect that the addon has activated on the subsequent request)
-     *
-     * @since    4.3.0
-     * @param string                  $addon_name                       [Required] the EE_Addon's name.
-     * @param  array                  $setup_args                       {
-     *                                                                  An array of arguments provided for registering
-     *                                                                  the message type.
-     * @type  string                  $class_name                       the addon's main file name.
-     *                                                                  If left blank, generated from the addon name,
-     *                                                                  changes something like "calendar" to
-     *                                                                  "EE_Calendar"
-     * @type string                   $min_core_version                 the minimum version of EE Core that the
-     *                                                                  addon will work with. eg "4.8.1.rc.084"
-     * @type string                   $version                          the "software" version for the addon. eg
-     *                                                                  "1.0.0.p" for a first stable release, or
-     *                                                                  "1.0.0.rc.043" for a version in progress
-     * @type string                   $main_file_path                   the full server path to the main file
-     *                                                                  loaded directly by WP
-     * @type DomainInterface $domain                                    child class of
-     *                                                                  EventEspresso\core\domain\DomainBase
-     * @type string                   $domain_fqcn                      Fully Qualified Class Name
-     *                                                                  for the addon's Domain class
-     *                                                                  (see EventEspresso\core\domain\Domain)
-     * @type string                   $admin_path                       full server path to the folder where the
-     *                                                                  addon\'s admin files reside
-     * @type string                   $admin_callback                   a method to be called when the EE Admin is
-     *                                                                  first invoked, can be used for hooking into
-     *                                                                  any admin page
-     * @type string                   $config_section                   the section name for this addon's
-     *                                                                  configuration settings section
-     *                                                                  (defaults to "addons")
-     * @type string                   $config_class                     the class name for this addon's
-     *                                                                  configuration settings object
-     * @type string                   $config_name                      the class name for this addon's
-     *                                                                  configuration settings object
-     * @type string                   $autoloader_paths                 [Required] an array of class names and the full
-     *                                                                  server paths to those files.
-     * @type string                   $autoloader_folders               an array of  "full server paths" for any
-     *                                                                  folders containing classes that might be
-     *                                                                  invoked by the addon
-     * @type string                   $dms_paths                        [Required] an array of full server paths to
-     *                                                                  folders that contain data migration scripts.
-     *                                                                  The key should be the EE_Addon class name that
-     *                                                                  this set of data migration scripts belongs to.
-     *                                                                  If the EE_Addon class is namespaced, then this
-     *                                                                  needs to be the Fully Qualified Class Name
-     * @type string                   $module_paths                     an array of full server paths to any
-     *                                                                  EED_Modules used by the addon
-     * @type string                   $shortcode_paths                  an array of full server paths to folders
-     *                                                                  that contain EES_Shortcodes
-     * @type string                   $widget_paths                     an array of full server paths to folders
-     *                                                                  that contain WP_Widgets
-     * @type string                   $pue_options
-     * @type array                    $capabilities                     an array indexed by role name
-     *                                                                  (i.e administrator,author ) and the values
-     *                                                                  are an array of caps to add to the role.
-     *                                                                  'administrator' => array(
-     *                                                                  'read_addon',
-     *                                                                  'edit_addon',
-     *                                                                  etc.
-     *                                                                  ).
-     * @type EE_Meta_Capability_Map[] $capability_maps                  an array of EE_Meta_Capability_Map object
-     *                                                                  for any addons that need to register any
-     *                                                                  special meta mapped capabilities.  Should
-     *                                                                  be indexed where the key is the
-     *                                                                  EE_Meta_Capability_Map class name and the
-     *                                                                  values are the arguments sent to the class.
-     * @type array                    $model_paths                      array of folders containing DB models
-     * @see      EE_Register_Model
-     * @type array                    $class_paths                      array of folders containing DB classes
-     * @see      EE_Register_Model
-     * @type array                    $model_extension_paths            array of folders containing DB model
-     *                                                                  extensions
-     * @see      EE_Register_Model_Extension
-     * @type array                    $class_extension_paths            array of folders containing DB class
-     *                                                                  extensions
-     * @see      EE_Register_Model_Extension
-     * @type array message_types {
-     *                                                                  An array of message types with the key as
-     *                                                                  the message type name and the values as
-     *                                                                  below:
-     * @type string                   $mtfilename                       [Required] The filename of the message type
-     *                                                                  being registered. This will be the main
-     *                                                                  EE_{Message Type Name}_message_type class.
-     *                                                                  for example:
-     *                                                                  EE_Declined_Registration_message_type.class.php
-     * @type array                    $autoloadpaths                    [Required] An array of paths to add to the
-     *                                                                  messages autoloader for the new message type.
-     * @type array                    $messengers_to_activate_with      An array of messengers that this message
-     *                                                                  type should activate with. Each value in
-     *                                                                  the
-     *                                                                  array
-     *                                                                  should match the name property of a
-     *                                                                  EE_messenger. Optional.
-     * @type array                    $messengers_to_validate_with      An array of messengers that this message
-     *                                                                  type should validate with. Each value in
-     *                                                                  the
-     *                                                                  array
-     *                                                                  should match the name property of an
-     *                                                                  EE_messenger.
-     *                                                                  Optional.
-     *                                                                  }
-     * @type array                    $custom_post_types
-     * @type array                    $custom_taxonomies
-     * @type array                    $payment_method_paths             each element is the folder containing the
-     *                                                                  EE_PMT_Base child class
-     *                                                                  (eg,
-     *                                                                  '/wp-content/plugins/my_plugin/Payomatic/'
-     *                                                                  which contains the files
-     *                                                                  EE_PMT_Payomatic.pm.php)
-     * @type array                    $default_terms
-     * @type array                    $namespace                        {
-     *                                                                  An array with two items for registering the
-     *                                                                  addon's namespace. (If, for some reason, you
-     *                                                                  require additional namespaces,
-     *                                                                  use
-     *                                                                  EventEspresso\core\Psr4Autoloader::addNamespace()
-     *                                                                  directly)
-     * @see      EventEspresso\core\Psr4Autoloader::addNamespace()
-     * @type string                   $FQNS                             the namespace prefix
-     * @type string                   $DIR                              a base directory for class files in the
-     *                                                                  namespace.
-     *                                                                  }
-     *                                                                  }
-     * @type string                   $privacy_policies                 FQNSs (namespaces, each of which contains only
-     *                                                                  privacy policy classes) or FQCNs (specific
-     *                                                                  classnames of privacy policy classes)
-     * @type string                   $personal_data_exporters          FQNSs (namespaces, each of which contains only
-     *                                                                  privacy policy classes) or FQCNs (specific
-     *                                                                  classnames of privacy policy classes)
-     * @type string                   $personal_data_erasers            FQNSs (namespaces, each of which contains only
-     *                                                                  privacy policy classes) or FQCNs (specific
-     *                                                                  classnames of privacy policy classes)
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function register($addon_name = '', $setup_args = array())
-    {
-        // required fields MUST be present, so let's make sure they are.
-        EE_Register_Addon::_verify_parameters($addon_name, $setup_args);
-        // get class name for addon
-        $class_name = EE_Register_Addon::_parse_class_name($addon_name, $setup_args);
-        // setup $_settings array from incoming values.
-        $addon_settings = EE_Register_Addon::_get_addon_settings($class_name, $setup_args);
-        // setup PUE
-        EE_Register_Addon::_parse_pue_options($addon_name, $class_name, $setup_args);
-        // does this addon work with this version of core or WordPress ?
-        if (! EE_Register_Addon::_addon_is_compatible($addon_name, $addon_settings)) {
-            return;
-        }
-        // register namespaces
-        EE_Register_Addon::_setup_namespaces($addon_settings);
-        // check if this is an activation request
-        if (EE_Register_Addon::_addon_activation($addon_name, $addon_settings)) {
-            // dont bother setting up the rest of the addon atm
-            return;
-        }
-        // we need cars
-        EE_Register_Addon::_setup_autoloaders($addon_name);
-        // register new models and extensions
-        EE_Register_Addon::_register_models_and_extensions($addon_name);
-        // setup DMS
-        EE_Register_Addon::_register_data_migration_scripts($addon_name);
-        // if config_class is present let's register config.
-        EE_Register_Addon::_register_config($addon_name);
-        // register admin pages
-        EE_Register_Addon::_register_admin_pages($addon_name);
-        // add to list of modules to be registered
-        EE_Register_Addon::_register_modules($addon_name);
-        // add to list of shortcodes to be registered
-        EE_Register_Addon::_register_shortcodes($addon_name);
-        // add to list of widgets to be registered
-        EE_Register_Addon::_register_widgets($addon_name);
-        // register capability related stuff.
-        EE_Register_Addon::_register_capabilities($addon_name);
-        // any message type to register?
-        EE_Register_Addon::_register_message_types($addon_name);
-        // any custom post type/ custom capabilities or default terms to register
-        EE_Register_Addon::_register_custom_post_types($addon_name);
-        // and any payment methods
-        EE_Register_Addon::_register_payment_methods($addon_name);
-        // and privacy policy generators
-        EE_Register_Addon::registerPrivacyPolicies($addon_name);
-        // and privacy policy generators
-        EE_Register_Addon::registerPersonalDataExporters($addon_name);
-        // and privacy policy generators
-        EE_Register_Addon::registerPersonalDataErasers($addon_name);
-        // load and instantiate main addon class
-        $addon = EE_Register_Addon::_load_and_init_addon_class($addon_name);
-        // delay calling after_registration hook on each addon until after all add-ons have been registered.
-        add_action('AHEE__EE_System__load_espresso_addons__complete', array($addon, 'after_registration'), 999);
-    }
+	/**
+	 * Method for registering new EE_Addons.
+	 * Should be called AFTER AHEE__EE_System__load_espresso_addons but BEFORE
+	 * AHEE__EE_System___detect_if_activation_or_upgrade__begin in order to register all its components. However, it
+	 * may also be called after the 'activate_plugin' action (when an addon is activated), because an activating addon
+	 * won't be loaded by WP until after AHEE__EE_System__load_espresso_addons has fired. If its called after
+	 * 'activate_plugin', it registers the addon still, but its components are not registered
+	 * (they shouldn't be needed anyways, because it's just an activation request and they won't have a chance to do
+	 * anything anyways). Instead, it just sets the newly-activated addon's activation indicator wp option and returns
+	 * (so that we can detect that the addon has activated on the subsequent request)
+	 *
+	 * @since    4.3.0
+	 * @param string                  $addon_name                       [Required] the EE_Addon's name.
+	 * @param  array                  $setup_args                       {
+	 *                                                                  An array of arguments provided for registering
+	 *                                                                  the message type.
+	 * @type  string                  $class_name                       the addon's main file name.
+	 *                                                                  If left blank, generated from the addon name,
+	 *                                                                  changes something like "calendar" to
+	 *                                                                  "EE_Calendar"
+	 * @type string                   $min_core_version                 the minimum version of EE Core that the
+	 *                                                                  addon will work with. eg "4.8.1.rc.084"
+	 * @type string                   $version                          the "software" version for the addon. eg
+	 *                                                                  "1.0.0.p" for a first stable release, or
+	 *                                                                  "1.0.0.rc.043" for a version in progress
+	 * @type string                   $main_file_path                   the full server path to the main file
+	 *                                                                  loaded directly by WP
+	 * @type DomainInterface $domain                                    child class of
+	 *                                                                  EventEspresso\core\domain\DomainBase
+	 * @type string                   $domain_fqcn                      Fully Qualified Class Name
+	 *                                                                  for the addon's Domain class
+	 *                                                                  (see EventEspresso\core\domain\Domain)
+	 * @type string                   $admin_path                       full server path to the folder where the
+	 *                                                                  addon\'s admin files reside
+	 * @type string                   $admin_callback                   a method to be called when the EE Admin is
+	 *                                                                  first invoked, can be used for hooking into
+	 *                                                                  any admin page
+	 * @type string                   $config_section                   the section name for this addon's
+	 *                                                                  configuration settings section
+	 *                                                                  (defaults to "addons")
+	 * @type string                   $config_class                     the class name for this addon's
+	 *                                                                  configuration settings object
+	 * @type string                   $config_name                      the class name for this addon's
+	 *                                                                  configuration settings object
+	 * @type string                   $autoloader_paths                 [Required] an array of class names and the full
+	 *                                                                  server paths to those files.
+	 * @type string                   $autoloader_folders               an array of  "full server paths" for any
+	 *                                                                  folders containing classes that might be
+	 *                                                                  invoked by the addon
+	 * @type string                   $dms_paths                        [Required] an array of full server paths to
+	 *                                                                  folders that contain data migration scripts.
+	 *                                                                  The key should be the EE_Addon class name that
+	 *                                                                  this set of data migration scripts belongs to.
+	 *                                                                  If the EE_Addon class is namespaced, then this
+	 *                                                                  needs to be the Fully Qualified Class Name
+	 * @type string                   $module_paths                     an array of full server paths to any
+	 *                                                                  EED_Modules used by the addon
+	 * @type string                   $shortcode_paths                  an array of full server paths to folders
+	 *                                                                  that contain EES_Shortcodes
+	 * @type string                   $widget_paths                     an array of full server paths to folders
+	 *                                                                  that contain WP_Widgets
+	 * @type string                   $pue_options
+	 * @type array                    $capabilities                     an array indexed by role name
+	 *                                                                  (i.e administrator,author ) and the values
+	 *                                                                  are an array of caps to add to the role.
+	 *                                                                  'administrator' => array(
+	 *                                                                  'read_addon',
+	 *                                                                  'edit_addon',
+	 *                                                                  etc.
+	 *                                                                  ).
+	 * @type EE_Meta_Capability_Map[] $capability_maps                  an array of EE_Meta_Capability_Map object
+	 *                                                                  for any addons that need to register any
+	 *                                                                  special meta mapped capabilities.  Should
+	 *                                                                  be indexed where the key is the
+	 *                                                                  EE_Meta_Capability_Map class name and the
+	 *                                                                  values are the arguments sent to the class.
+	 * @type array                    $model_paths                      array of folders containing DB models
+	 * @see      EE_Register_Model
+	 * @type array                    $class_paths                      array of folders containing DB classes
+	 * @see      EE_Register_Model
+	 * @type array                    $model_extension_paths            array of folders containing DB model
+	 *                                                                  extensions
+	 * @see      EE_Register_Model_Extension
+	 * @type array                    $class_extension_paths            array of folders containing DB class
+	 *                                                                  extensions
+	 * @see      EE_Register_Model_Extension
+	 * @type array message_types {
+	 *                                                                  An array of message types with the key as
+	 *                                                                  the message type name and the values as
+	 *                                                                  below:
+	 * @type string                   $mtfilename                       [Required] The filename of the message type
+	 *                                                                  being registered. This will be the main
+	 *                                                                  EE_{Message Type Name}_message_type class.
+	 *                                                                  for example:
+	 *                                                                  EE_Declined_Registration_message_type.class.php
+	 * @type array                    $autoloadpaths                    [Required] An array of paths to add to the
+	 *                                                                  messages autoloader for the new message type.
+	 * @type array                    $messengers_to_activate_with      An array of messengers that this message
+	 *                                                                  type should activate with. Each value in
+	 *                                                                  the
+	 *                                                                  array
+	 *                                                                  should match the name property of a
+	 *                                                                  EE_messenger. Optional.
+	 * @type array                    $messengers_to_validate_with      An array of messengers that this message
+	 *                                                                  type should validate with. Each value in
+	 *                                                                  the
+	 *                                                                  array
+	 *                                                                  should match the name property of an
+	 *                                                                  EE_messenger.
+	 *                                                                  Optional.
+	 *                                                                  }
+	 * @type array                    $custom_post_types
+	 * @type array                    $custom_taxonomies
+	 * @type array                    $payment_method_paths             each element is the folder containing the
+	 *                                                                  EE_PMT_Base child class
+	 *                                                                  (eg,
+	 *                                                                  '/wp-content/plugins/my_plugin/Payomatic/'
+	 *                                                                  which contains the files
+	 *                                                                  EE_PMT_Payomatic.pm.php)
+	 * @type array                    $default_terms
+	 * @type array                    $namespace                        {
+	 *                                                                  An array with two items for registering the
+	 *                                                                  addon's namespace. (If, for some reason, you
+	 *                                                                  require additional namespaces,
+	 *                                                                  use
+	 *                                                                  EventEspresso\core\Psr4Autoloader::addNamespace()
+	 *                                                                  directly)
+	 * @see      EventEspresso\core\Psr4Autoloader::addNamespace()
+	 * @type string                   $FQNS                             the namespace prefix
+	 * @type string                   $DIR                              a base directory for class files in the
+	 *                                                                  namespace.
+	 *                                                                  }
+	 *                                                                  }
+	 * @type string                   $privacy_policies                 FQNSs (namespaces, each of which contains only
+	 *                                                                  privacy policy classes) or FQCNs (specific
+	 *                                                                  classnames of privacy policy classes)
+	 * @type string                   $personal_data_exporters          FQNSs (namespaces, each of which contains only
+	 *                                                                  privacy policy classes) or FQCNs (specific
+	 *                                                                  classnames of privacy policy classes)
+	 * @type string                   $personal_data_erasers            FQNSs (namespaces, each of which contains only
+	 *                                                                  privacy policy classes) or FQCNs (specific
+	 *                                                                  classnames of privacy policy classes)
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function register($addon_name = '', $setup_args = array())
+	{
+		// required fields MUST be present, so let's make sure they are.
+		EE_Register_Addon::_verify_parameters($addon_name, $setup_args);
+		// get class name for addon
+		$class_name = EE_Register_Addon::_parse_class_name($addon_name, $setup_args);
+		// setup $_settings array from incoming values.
+		$addon_settings = EE_Register_Addon::_get_addon_settings($class_name, $setup_args);
+		// setup PUE
+		EE_Register_Addon::_parse_pue_options($addon_name, $class_name, $setup_args);
+		// does this addon work with this version of core or WordPress ?
+		if (! EE_Register_Addon::_addon_is_compatible($addon_name, $addon_settings)) {
+			return;
+		}
+		// register namespaces
+		EE_Register_Addon::_setup_namespaces($addon_settings);
+		// check if this is an activation request
+		if (EE_Register_Addon::_addon_activation($addon_name, $addon_settings)) {
+			// dont bother setting up the rest of the addon atm
+			return;
+		}
+		// we need cars
+		EE_Register_Addon::_setup_autoloaders($addon_name);
+		// register new models and extensions
+		EE_Register_Addon::_register_models_and_extensions($addon_name);
+		// setup DMS
+		EE_Register_Addon::_register_data_migration_scripts($addon_name);
+		// if config_class is present let's register config.
+		EE_Register_Addon::_register_config($addon_name);
+		// register admin pages
+		EE_Register_Addon::_register_admin_pages($addon_name);
+		// add to list of modules to be registered
+		EE_Register_Addon::_register_modules($addon_name);
+		// add to list of shortcodes to be registered
+		EE_Register_Addon::_register_shortcodes($addon_name);
+		// add to list of widgets to be registered
+		EE_Register_Addon::_register_widgets($addon_name);
+		// register capability related stuff.
+		EE_Register_Addon::_register_capabilities($addon_name);
+		// any message type to register?
+		EE_Register_Addon::_register_message_types($addon_name);
+		// any custom post type/ custom capabilities or default terms to register
+		EE_Register_Addon::_register_custom_post_types($addon_name);
+		// and any payment methods
+		EE_Register_Addon::_register_payment_methods($addon_name);
+		// and privacy policy generators
+		EE_Register_Addon::registerPrivacyPolicies($addon_name);
+		// and privacy policy generators
+		EE_Register_Addon::registerPersonalDataExporters($addon_name);
+		// and privacy policy generators
+		EE_Register_Addon::registerPersonalDataErasers($addon_name);
+		// load and instantiate main addon class
+		$addon = EE_Register_Addon::_load_and_init_addon_class($addon_name);
+		// delay calling after_registration hook on each addon until after all add-ons have been registered.
+		add_action('AHEE__EE_System__load_espresso_addons__complete', array($addon, 'after_registration'), 999);
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $setup_args
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _verify_parameters($addon_name, array $setup_args)
-    {
-        // required fields MUST be present, so let's make sure they are.
-        if (empty($addon_name) || ! is_array($setup_args)) {
-            throw new EE_Error(
-                __(
-                    'In order to register an EE_Addon with EE_Register_Addon::register(), you must include the "addon_name" (the name of the addon), and an array of arguments.',
-                    'event_espresso'
-                )
-            );
-        }
-        if (! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'When registering an addon, you didn\'t provide the "main_file_path", which is the full path to the main file loaded directly by Wordpress. You only provided %s',
-                        'event_espresso'
-                    ),
-                    implode(',', array_keys($setup_args))
-                )
-            );
-        }
-        // check that addon has not already been registered with that name
-        if (isset(self::$_settings[ $addon_name ]) && ! did_action('activate_plugin')) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'An EE_Addon with the name "%s" has already been registered and each EE_Addon requires a unique name.',
-                        'event_espresso'
-                    ),
-                    $addon_name
-                )
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @param array  $setup_args
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _verify_parameters($addon_name, array $setup_args)
+	{
+		// required fields MUST be present, so let's make sure they are.
+		if (empty($addon_name) || ! is_array($setup_args)) {
+			throw new EE_Error(
+				__(
+					'In order to register an EE_Addon with EE_Register_Addon::register(), you must include the "addon_name" (the name of the addon), and an array of arguments.',
+					'event_espresso'
+				)
+			);
+		}
+		if (! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'When registering an addon, you didn\'t provide the "main_file_path", which is the full path to the main file loaded directly by Wordpress. You only provided %s',
+						'event_espresso'
+					),
+					implode(',', array_keys($setup_args))
+				)
+			);
+		}
+		// check that addon has not already been registered with that name
+		if (isset(self::$_settings[ $addon_name ]) && ! did_action('activate_plugin')) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'An EE_Addon with the name "%s" has already been registered and each EE_Addon requires a unique name.',
+						'event_espresso'
+					),
+					$addon_name
+				)
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $setup_args
-     * @return string
-     */
-    private static function _parse_class_name($addon_name, array $setup_args)
-    {
-        if (empty($setup_args['class_name'])) {
-            // generate one by first separating name with spaces
-            $class_name = str_replace(array('-', '_'), ' ', trim($addon_name));
-            // capitalize, then replace spaces with underscores
-            $class_name = str_replace(' ', '_', ucwords($class_name));
-        } else {
-            $class_name = $setup_args['class_name'];
-        }
-        // check if classname is fully  qualified or is a legacy classname already prefixed with 'EE_'
-        return strpos($class_name, '\\') || strpos($class_name, 'EE_') === 0
-            ? $class_name
-            : 'EE_' . $class_name;
-    }
+	/**
+	 * @param string $addon_name
+	 * @param array  $setup_args
+	 * @return string
+	 */
+	private static function _parse_class_name($addon_name, array $setup_args)
+	{
+		if (empty($setup_args['class_name'])) {
+			// generate one by first separating name with spaces
+			$class_name = str_replace(array('-', '_'), ' ', trim($addon_name));
+			// capitalize, then replace spaces with underscores
+			$class_name = str_replace(' ', '_', ucwords($class_name));
+		} else {
+			$class_name = $setup_args['class_name'];
+		}
+		// check if classname is fully  qualified or is a legacy classname already prefixed with 'EE_'
+		return strpos($class_name, '\\') || strpos($class_name, 'EE_') === 0
+			? $class_name
+			: 'EE_' . $class_name;
+	}
 
 
-    /**
-     * @param string $class_name
-     * @param array  $setup_args
-     * @return array
-     */
-    private static function _get_addon_settings($class_name, array $setup_args)
-    {
-        // setup $_settings array from incoming values.
-        $addon_settings = array(
-            // generated from the addon name, changes something like "calendar" to "EE_Calendar"
-            'class_name'            => $class_name,
-            // the addon slug for use in URLs, etc
-            'plugin_slug'           => isset($setup_args['plugin_slug'])
-                ? (string) $setup_args['plugin_slug']
-                : '',
-            // page slug to be used when generating the "Settings" link on the WP plugin page
-            'plugin_action_slug'    => isset($setup_args['plugin_action_slug'])
-                ? (string) $setup_args['plugin_action_slug']
-                : '',
-            // the "software" version for the addon
-            'version'               => isset($setup_args['version'])
-                ? (string) $setup_args['version']
-                : '',
-            // the minimum version of EE Core that the addon will work with
-            'min_core_version'      => isset($setup_args['min_core_version'])
-                ? (string) $setup_args['min_core_version']
-                : '',
-            // the minimum version of WordPress that the addon will work with
-            'min_wp_version'        => isset($setup_args['min_wp_version'])
-                ? (string) $setup_args['min_wp_version']
-                : EE_MIN_WP_VER_REQUIRED,
-            // full server path to main file (file loaded directly by WP)
-            'main_file_path'        => isset($setup_args['main_file_path'])
-                ? (string) $setup_args['main_file_path']
-                : '',
-            // instance of \EventEspresso\core\domain\DomainInterface
-            'domain'                => isset($setup_args['domain']) && $setup_args['domain'] instanceof DomainInterface
-                ? $setup_args['domain']
-                : null,
-            // Fully Qualified Class Name for the addon's Domain class
-            'domain_fqcn'           => isset($setup_args['domain_fqcn'])
-                ? (string) $setup_args['domain_fqcn']
-                : '',
-            // path to folder containing files for integrating with the EE core admin and/or setting up EE admin pages
-            'admin_path'            => isset($setup_args['admin_path'])
-                ? (string) $setup_args['admin_path'] : '',
-            // a method to be called when the EE Admin is first invoked, can be used for hooking into any admin page
-            'admin_callback'        => isset($setup_args['admin_callback'])
-                ? (string) $setup_args['admin_callback']
-                : '',
-            // the section name for this addon's configuration settings section (defaults to "addons")
-            'config_section'        => isset($setup_args['config_section'])
-                ? (string) $setup_args['config_section']
-                : 'addons',
-            // the class name for this addon's configuration settings object
-            'config_class'          => isset($setup_args['config_class'])
-                ? (string) $setup_args['config_class'] : '',
-            // the name given to the config for this addons' configuration settings object (optional)
-            'config_name'           => isset($setup_args['config_name'])
-                ? (string) $setup_args['config_name'] : '',
-            // an array of "class names" => "full server paths" for any classes that might be invoked by the addon
-            'autoloader_paths'      => isset($setup_args['autoloader_paths'])
-                ? (array) $setup_args['autoloader_paths']
-                : array(),
-            // an array of  "full server paths" for any folders containing classes that might be invoked by the addon
-            'autoloader_folders'    => isset($setup_args['autoloader_folders'])
-                ? (array) $setup_args['autoloader_folders']
-                : array(),
-            // array of full server paths to any EE_DMS data migration scripts used by the addon.
-            // The key should be the EE_Addon class name that this set of data migration scripts belongs to.
-            // If the EE_Addon class is namespaced, then this needs to be the Fully Qualified Class Name
-            'dms_paths'             => isset($setup_args['dms_paths'])
-                ? (array) $setup_args['dms_paths']
-                : array(),
-            // array of full server paths to any EED_Modules used by the addon
-            'module_paths'          => isset($setup_args['module_paths'])
-                ? (array) $setup_args['module_paths']
-                : array(),
-            // array of full server paths to any EES_Shortcodes used by the addon
-            'shortcode_paths'       => isset($setup_args['shortcode_paths'])
-                ? (array) $setup_args['shortcode_paths']
-                : array(),
-            'shortcode_fqcns'       => isset($setup_args['shortcode_fqcns'])
-                ? (array) $setup_args['shortcode_fqcns']
-                : array(),
-            // array of full server paths to any WP_Widgets used by the addon
-            'widget_paths'          => isset($setup_args['widget_paths'])
-                ? (array) $setup_args['widget_paths']
-                : array(),
-            // array of PUE options used by the addon
-            'pue_options'           => isset($setup_args['pue_options'])
-                ? (array) $setup_args['pue_options']
-                : array(),
-            'message_types'         => isset($setup_args['message_types'])
-                ? (array) $setup_args['message_types']
-                : array(),
-            'capabilities'          => isset($setup_args['capabilities'])
-                ? (array) $setup_args['capabilities']
-                : array(),
-            'capability_maps'       => isset($setup_args['capability_maps'])
-                ? (array) $setup_args['capability_maps']
-                : array(),
-            'model_paths'           => isset($setup_args['model_paths'])
-                ? (array) $setup_args['model_paths']
-                : array(),
-            'class_paths'           => isset($setup_args['class_paths'])
-                ? (array) $setup_args['class_paths']
-                : array(),
-            'model_extension_paths' => isset($setup_args['model_extension_paths'])
-                ? (array) $setup_args['model_extension_paths']
-                : array(),
-            'class_extension_paths' => isset($setup_args['class_extension_paths'])
-                ? (array) $setup_args['class_extension_paths']
-                : array(),
-            'custom_post_types'     => isset($setup_args['custom_post_types'])
-                ? (array) $setup_args['custom_post_types']
-                : array(),
-            'custom_taxonomies'     => isset($setup_args['custom_taxonomies'])
-                ? (array) $setup_args['custom_taxonomies']
-                : array(),
-            'payment_method_paths'  => isset($setup_args['payment_method_paths'])
-                ? (array) $setup_args['payment_method_paths']
-                : array(),
-            'default_terms'         => isset($setup_args['default_terms'])
-                ? (array) $setup_args['default_terms']
-                : array(),
-            // if not empty, inserts a new table row after this plugin's row on the WP Plugins page
-            // that can be used for adding upgrading/marketing info
-            'plugins_page_row'      => isset($setup_args['plugins_page_row'])
-                ? $setup_args['plugins_page_row']
-                : '',
-            'namespace'             => isset(
-                $setup_args['namespace']['FQNS'],
-                $setup_args['namespace']['DIR']
-            )
-                ? (array) $setup_args['namespace']
-                : array(),
-            'privacy_policies'      => isset($setup_args['privacy_policies'])
-                ? (array) $setup_args['privacy_policies']
-                : '',
-        );
-        // if plugin_action_slug is NOT set, but an admin page path IS set,
-        // then let's just use the plugin_slug since that will be used for linking to the admin page
-        $addon_settings['plugin_action_slug'] = empty($addon_settings['plugin_action_slug'])
-                                                && ! empty($addon_settings['admin_path'])
-            ? $addon_settings['plugin_slug']
-            : $addon_settings['plugin_action_slug'];
-        // full server path to main file (file loaded directly by WP)
-        $addon_settings['plugin_basename'] = plugin_basename($addon_settings['main_file_path']);
-        return $addon_settings;
-    }
+	/**
+	 * @param string $class_name
+	 * @param array  $setup_args
+	 * @return array
+	 */
+	private static function _get_addon_settings($class_name, array $setup_args)
+	{
+		// setup $_settings array from incoming values.
+		$addon_settings = array(
+			// generated from the addon name, changes something like "calendar" to "EE_Calendar"
+			'class_name'            => $class_name,
+			// the addon slug for use in URLs, etc
+			'plugin_slug'           => isset($setup_args['plugin_slug'])
+				? (string) $setup_args['plugin_slug']
+				: '',
+			// page slug to be used when generating the "Settings" link on the WP plugin page
+			'plugin_action_slug'    => isset($setup_args['plugin_action_slug'])
+				? (string) $setup_args['plugin_action_slug']
+				: '',
+			// the "software" version for the addon
+			'version'               => isset($setup_args['version'])
+				? (string) $setup_args['version']
+				: '',
+			// the minimum version of EE Core that the addon will work with
+			'min_core_version'      => isset($setup_args['min_core_version'])
+				? (string) $setup_args['min_core_version']
+				: '',
+			// the minimum version of WordPress that the addon will work with
+			'min_wp_version'        => isset($setup_args['min_wp_version'])
+				? (string) $setup_args['min_wp_version']
+				: EE_MIN_WP_VER_REQUIRED,
+			// full server path to main file (file loaded directly by WP)
+			'main_file_path'        => isset($setup_args['main_file_path'])
+				? (string) $setup_args['main_file_path']
+				: '',
+			// instance of \EventEspresso\core\domain\DomainInterface
+			'domain'                => isset($setup_args['domain']) && $setup_args['domain'] instanceof DomainInterface
+				? $setup_args['domain']
+				: null,
+			// Fully Qualified Class Name for the addon's Domain class
+			'domain_fqcn'           => isset($setup_args['domain_fqcn'])
+				? (string) $setup_args['domain_fqcn']
+				: '',
+			// path to folder containing files for integrating with the EE core admin and/or setting up EE admin pages
+			'admin_path'            => isset($setup_args['admin_path'])
+				? (string) $setup_args['admin_path'] : '',
+			// a method to be called when the EE Admin is first invoked, can be used for hooking into any admin page
+			'admin_callback'        => isset($setup_args['admin_callback'])
+				? (string) $setup_args['admin_callback']
+				: '',
+			// the section name for this addon's configuration settings section (defaults to "addons")
+			'config_section'        => isset($setup_args['config_section'])
+				? (string) $setup_args['config_section']
+				: 'addons',
+			// the class name for this addon's configuration settings object
+			'config_class'          => isset($setup_args['config_class'])
+				? (string) $setup_args['config_class'] : '',
+			// the name given to the config for this addons' configuration settings object (optional)
+			'config_name'           => isset($setup_args['config_name'])
+				? (string) $setup_args['config_name'] : '',
+			// an array of "class names" => "full server paths" for any classes that might be invoked by the addon
+			'autoloader_paths'      => isset($setup_args['autoloader_paths'])
+				? (array) $setup_args['autoloader_paths']
+				: array(),
+			// an array of  "full server paths" for any folders containing classes that might be invoked by the addon
+			'autoloader_folders'    => isset($setup_args['autoloader_folders'])
+				? (array) $setup_args['autoloader_folders']
+				: array(),
+			// array of full server paths to any EE_DMS data migration scripts used by the addon.
+			// The key should be the EE_Addon class name that this set of data migration scripts belongs to.
+			// If the EE_Addon class is namespaced, then this needs to be the Fully Qualified Class Name
+			'dms_paths'             => isset($setup_args['dms_paths'])
+				? (array) $setup_args['dms_paths']
+				: array(),
+			// array of full server paths to any EED_Modules used by the addon
+			'module_paths'          => isset($setup_args['module_paths'])
+				? (array) $setup_args['module_paths']
+				: array(),
+			// array of full server paths to any EES_Shortcodes used by the addon
+			'shortcode_paths'       => isset($setup_args['shortcode_paths'])
+				? (array) $setup_args['shortcode_paths']
+				: array(),
+			'shortcode_fqcns'       => isset($setup_args['shortcode_fqcns'])
+				? (array) $setup_args['shortcode_fqcns']
+				: array(),
+			// array of full server paths to any WP_Widgets used by the addon
+			'widget_paths'          => isset($setup_args['widget_paths'])
+				? (array) $setup_args['widget_paths']
+				: array(),
+			// array of PUE options used by the addon
+			'pue_options'           => isset($setup_args['pue_options'])
+				? (array) $setup_args['pue_options']
+				: array(),
+			'message_types'         => isset($setup_args['message_types'])
+				? (array) $setup_args['message_types']
+				: array(),
+			'capabilities'          => isset($setup_args['capabilities'])
+				? (array) $setup_args['capabilities']
+				: array(),
+			'capability_maps'       => isset($setup_args['capability_maps'])
+				? (array) $setup_args['capability_maps']
+				: array(),
+			'model_paths'           => isset($setup_args['model_paths'])
+				? (array) $setup_args['model_paths']
+				: array(),
+			'class_paths'           => isset($setup_args['class_paths'])
+				? (array) $setup_args['class_paths']
+				: array(),
+			'model_extension_paths' => isset($setup_args['model_extension_paths'])
+				? (array) $setup_args['model_extension_paths']
+				: array(),
+			'class_extension_paths' => isset($setup_args['class_extension_paths'])
+				? (array) $setup_args['class_extension_paths']
+				: array(),
+			'custom_post_types'     => isset($setup_args['custom_post_types'])
+				? (array) $setup_args['custom_post_types']
+				: array(),
+			'custom_taxonomies'     => isset($setup_args['custom_taxonomies'])
+				? (array) $setup_args['custom_taxonomies']
+				: array(),
+			'payment_method_paths'  => isset($setup_args['payment_method_paths'])
+				? (array) $setup_args['payment_method_paths']
+				: array(),
+			'default_terms'         => isset($setup_args['default_terms'])
+				? (array) $setup_args['default_terms']
+				: array(),
+			// if not empty, inserts a new table row after this plugin's row on the WP Plugins page
+			// that can be used for adding upgrading/marketing info
+			'plugins_page_row'      => isset($setup_args['plugins_page_row'])
+				? $setup_args['plugins_page_row']
+				: '',
+			'namespace'             => isset(
+				$setup_args['namespace']['FQNS'],
+				$setup_args['namespace']['DIR']
+			)
+				? (array) $setup_args['namespace']
+				: array(),
+			'privacy_policies'      => isset($setup_args['privacy_policies'])
+				? (array) $setup_args['privacy_policies']
+				: '',
+		);
+		// if plugin_action_slug is NOT set, but an admin page path IS set,
+		// then let's just use the plugin_slug since that will be used for linking to the admin page
+		$addon_settings['plugin_action_slug'] = empty($addon_settings['plugin_action_slug'])
+												&& ! empty($addon_settings['admin_path'])
+			? $addon_settings['plugin_slug']
+			: $addon_settings['plugin_action_slug'];
+		// full server path to main file (file loaded directly by WP)
+		$addon_settings['plugin_basename'] = plugin_basename($addon_settings['main_file_path']);
+		return $addon_settings;
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $addon_settings
-     * @return boolean
-     */
-    private static function _addon_is_compatible($addon_name, array $addon_settings)
-    {
-        global $wp_version;
-        $incompatibility_message = '';
-        // check whether this addon version is compatible with EE core
-        if (isset(EE_Register_Addon::$_incompatible_addons[ $addon_name ])
-            && ! self::_meets_min_core_version_requirement(
-                EE_Register_Addon::$_incompatible_addons[ $addon_name ],
-                $addon_settings['version']
-            )
-        ) {
-            $incompatibility_message = sprintf(
-                __(
-                    '%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon is not compatible with this version of Event Espresso.%2$sPlease upgrade your "%1$s" addon to version %3$s or newer to resolve this issue.',
-                    'event_espresso'
-                ),
-                $addon_name,
-                '<br />',
-                EE_Register_Addon::$_incompatible_addons[ $addon_name ],
-                '<span style="font-weight: bold; color: #D54E21;">',
-                '</span><br />'
-            );
-        } elseif (! self::_meets_min_core_version_requirement($addon_settings['min_core_version'], espresso_version())
-        ) {
-            $incompatibility_message = sprintf(
-                __(
-                    '%5$sIMPORTANT!%6$sThe Event Espresso "%1$s" addon requires Event Espresso Core version "%2$s" or higher in order to run.%4$sYour version of Event Espresso Core is currently at "%3$s". Please upgrade Event Espresso Core first and then re-activate "%1$s".',
-                    'event_espresso'
-                ),
-                $addon_name,
-                self::_effective_version($addon_settings['min_core_version']),
-                self::_effective_version(espresso_version()),
-                '<br />',
-                '<span style="font-weight: bold; color: #D54E21;">',
-                '</span><br />'
-            );
-        } elseif (version_compare($wp_version, $addon_settings['min_wp_version'], '<')) {
-            $incompatibility_message = sprintf(
-                __(
-                    '%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon requires WordPress version "%2$s" or greater.%3$sPlease update your version of WordPress to use the "%1$s" addon and to keep your site secure.',
-                    'event_espresso'
-                ),
-                $addon_name,
-                $addon_settings['min_wp_version'],
-                '<br />',
-                '<span style="font-weight: bold; color: #D54E21;">',
-                '</span><br />'
-            );
-        }
-        if (! empty($incompatibility_message)) {
-            // remove 'activate' from the REQUEST
-            // so WP doesn't erroneously tell the user the plugin activated fine when it didn't
-            unset($_GET['activate'], $_REQUEST['activate']);
-            if (current_user_can('activate_plugins')) {
-                // show an error message indicating the plugin didn't activate properly
-                EE_Error::add_error($incompatibility_message, __FILE__, __FUNCTION__, __LINE__);
-            }
-            // BAIL FROM THE ADDON REGISTRATION PROCESS
-            return false;
-        }
-        // addon IS compatible
-        return true;
-    }
+	/**
+	 * @param string $addon_name
+	 * @param array  $addon_settings
+	 * @return boolean
+	 */
+	private static function _addon_is_compatible($addon_name, array $addon_settings)
+	{
+		global $wp_version;
+		$incompatibility_message = '';
+		// check whether this addon version is compatible with EE core
+		if (isset(EE_Register_Addon::$_incompatible_addons[ $addon_name ])
+			&& ! self::_meets_min_core_version_requirement(
+				EE_Register_Addon::$_incompatible_addons[ $addon_name ],
+				$addon_settings['version']
+			)
+		) {
+			$incompatibility_message = sprintf(
+				__(
+					'%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon is not compatible with this version of Event Espresso.%2$sPlease upgrade your "%1$s" addon to version %3$s or newer to resolve this issue.',
+					'event_espresso'
+				),
+				$addon_name,
+				'<br />',
+				EE_Register_Addon::$_incompatible_addons[ $addon_name ],
+				'<span style="font-weight: bold; color: #D54E21;">',
+				'</span><br />'
+			);
+		} elseif (! self::_meets_min_core_version_requirement($addon_settings['min_core_version'], espresso_version())
+		) {
+			$incompatibility_message = sprintf(
+				__(
+					'%5$sIMPORTANT!%6$sThe Event Espresso "%1$s" addon requires Event Espresso Core version "%2$s" or higher in order to run.%4$sYour version of Event Espresso Core is currently at "%3$s". Please upgrade Event Espresso Core first and then re-activate "%1$s".',
+					'event_espresso'
+				),
+				$addon_name,
+				self::_effective_version($addon_settings['min_core_version']),
+				self::_effective_version(espresso_version()),
+				'<br />',
+				'<span style="font-weight: bold; color: #D54E21;">',
+				'</span><br />'
+			);
+		} elseif (version_compare($wp_version, $addon_settings['min_wp_version'], '<')) {
+			$incompatibility_message = sprintf(
+				__(
+					'%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon requires WordPress version "%2$s" or greater.%3$sPlease update your version of WordPress to use the "%1$s" addon and to keep your site secure.',
+					'event_espresso'
+				),
+				$addon_name,
+				$addon_settings['min_wp_version'],
+				'<br />',
+				'<span style="font-weight: bold; color: #D54E21;">',
+				'</span><br />'
+			);
+		}
+		if (! empty($incompatibility_message)) {
+			// remove 'activate' from the REQUEST
+			// so WP doesn't erroneously tell the user the plugin activated fine when it didn't
+			unset($_GET['activate'], $_REQUEST['activate']);
+			if (current_user_can('activate_plugins')) {
+				// show an error message indicating the plugin didn't activate properly
+				EE_Error::add_error($incompatibility_message, __FILE__, __FUNCTION__, __LINE__);
+			}
+			// BAIL FROM THE ADDON REGISTRATION PROCESS
+			return false;
+		}
+		// addon IS compatible
+		return true;
+	}
 
 
-    /**
-     * if plugin update engine is being used for auto-updates,
-     * then let's set that up now before going any further so that ALL addons can be updated
-     * (not needed if PUE is not being used)
-     *
-     * @param string $addon_name
-     * @param string $class_name
-     * @param array  $setup_args
-     * @return void
-     */
-    private static function _parse_pue_options($addon_name, $class_name, array $setup_args)
-    {
-        if (! empty($setup_args['pue_options'])) {
-            self::$_settings[ $addon_name ]['pue_options'] = array(
-                'pue_plugin_slug' => isset($setup_args['pue_options']['pue_plugin_slug'])
-                    ? (string) $setup_args['pue_options']['pue_plugin_slug']
-                    : 'espresso_' . strtolower($class_name),
-                'plugin_basename' => isset($setup_args['pue_options']['plugin_basename'])
-                    ? (string) $setup_args['pue_options']['plugin_basename']
-                    : plugin_basename($setup_args['main_file_path']),
-                'checkPeriod'     => isset($setup_args['pue_options']['checkPeriod'])
-                    ? (string) $setup_args['pue_options']['checkPeriod']
-                    : '24',
-                'use_wp_update'   => isset($setup_args['pue_options']['use_wp_update'])
-                    ? (string) $setup_args['pue_options']['use_wp_update']
-                    : false,
-            );
-            add_action(
-                'AHEE__EE_System__brew_espresso__after_pue_init',
-                array('EE_Register_Addon', 'load_pue_update')
-            );
-        }
-    }
+	/**
+	 * if plugin update engine is being used for auto-updates,
+	 * then let's set that up now before going any further so that ALL addons can be updated
+	 * (not needed if PUE is not being used)
+	 *
+	 * @param string $addon_name
+	 * @param string $class_name
+	 * @param array  $setup_args
+	 * @return void
+	 */
+	private static function _parse_pue_options($addon_name, $class_name, array $setup_args)
+	{
+		if (! empty($setup_args['pue_options'])) {
+			self::$_settings[ $addon_name ]['pue_options'] = array(
+				'pue_plugin_slug' => isset($setup_args['pue_options']['pue_plugin_slug'])
+					? (string) $setup_args['pue_options']['pue_plugin_slug']
+					: 'espresso_' . strtolower($class_name),
+				'plugin_basename' => isset($setup_args['pue_options']['plugin_basename'])
+					? (string) $setup_args['pue_options']['plugin_basename']
+					: plugin_basename($setup_args['main_file_path']),
+				'checkPeriod'     => isset($setup_args['pue_options']['checkPeriod'])
+					? (string) $setup_args['pue_options']['checkPeriod']
+					: '24',
+				'use_wp_update'   => isset($setup_args['pue_options']['use_wp_update'])
+					? (string) $setup_args['pue_options']['use_wp_update']
+					: false,
+			);
+			add_action(
+				'AHEE__EE_System__brew_espresso__after_pue_init',
+				array('EE_Register_Addon', 'load_pue_update')
+			);
+		}
+	}
 
 
-    /**
-     * register namespaces right away before any other files or classes get loaded, but AFTER the version checks
-     *
-     * @param array $addon_settings
-     * @return void
-     */
-    private static function _setup_namespaces(array $addon_settings)
-    {
-        //
-        if (isset(
-            $addon_settings['namespace']['FQNS'],
-            $addon_settings['namespace']['DIR']
-        )) {
-            EE_Psr4AutoloaderInit::psr4_loader()->addNamespace(
-                $addon_settings['namespace']['FQNS'],
-                $addon_settings['namespace']['DIR']
-            );
-        }
-    }
+	/**
+	 * register namespaces right away before any other files or classes get loaded, but AFTER the version checks
+	 *
+	 * @param array $addon_settings
+	 * @return void
+	 */
+	private static function _setup_namespaces(array $addon_settings)
+	{
+		//
+		if (isset(
+			$addon_settings['namespace']['FQNS'],
+			$addon_settings['namespace']['DIR']
+		)) {
+			EE_Psr4AutoloaderInit::psr4_loader()->addNamespace(
+				$addon_settings['namespace']['FQNS'],
+				$addon_settings['namespace']['DIR']
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $addon_settings
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private static function _addon_activation($addon_name, array $addon_settings)
-    {
-        // this is an activation request
-        if (did_action(
-            'activate_plugin'
-        )) {// to find if THIS is the addon that was activated, just check if we have already registered it or not
-            // (as the newly-activated addon wasn't around the first time addons were registered).
-            // Note: the presence of pue_options in the addon registration options will initialize the $_settings
-            // property for the add-on, but the add-on is only partially initialized.  Hence, the additional check.
-            if (! isset(self::$_settings[ $addon_name ])
-                || (isset(self::$_settings[ $addon_name ])
-                    && ! isset(self::$_settings[ $addon_name ]['class_name'])
-                )
-            ) {
-                self::$_settings[ $addon_name ] = $addon_settings;
-                $addon = self::_load_and_init_addon_class($addon_name);
-                $addon->set_activation_indicator_option();
-                // dont bother setting up the rest of the addon.
-                // we know it was just activated and the request will end soon
-            }
-            return true;
-        }
-        // make sure this was called in the right place!
-        if (! did_action('AHEE__EE_System__load_espresso_addons')
-            || did_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin')
-        ) {
-            EE_Error::doing_it_wrong(
-                __METHOD__,
-                sprintf(
-                    __(
-                        'An attempt to register an EE_Addon named "%s" has failed because it was not registered at the correct time.  Please use the "AHEE__EE_System__load_espresso_addons" hook to register addons.',
-                        'event_espresso'
-                    ),
-                    $addon_name
-                ),
-                '4.3.0'
-            );
-        }
-        // make sure addon settings are set correctly without overwriting anything existing
-        if (isset(self::$_settings[ $addon_name ])) {
-            self::$_settings[ $addon_name ] += $addon_settings;
-        } else {
-            self::$_settings[ $addon_name ] = $addon_settings;
-        }
-        return false;
-    }
+	/**
+	 * @param string $addon_name
+	 * @param array  $addon_settings
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private static function _addon_activation($addon_name, array $addon_settings)
+	{
+		// this is an activation request
+		if (did_action(
+			'activate_plugin'
+		)) {// to find if THIS is the addon that was activated, just check if we have already registered it or not
+			// (as the newly-activated addon wasn't around the first time addons were registered).
+			// Note: the presence of pue_options in the addon registration options will initialize the $_settings
+			// property for the add-on, but the add-on is only partially initialized.  Hence, the additional check.
+			if (! isset(self::$_settings[ $addon_name ])
+				|| (isset(self::$_settings[ $addon_name ])
+					&& ! isset(self::$_settings[ $addon_name ]['class_name'])
+				)
+			) {
+				self::$_settings[ $addon_name ] = $addon_settings;
+				$addon = self::_load_and_init_addon_class($addon_name);
+				$addon->set_activation_indicator_option();
+				// dont bother setting up the rest of the addon.
+				// we know it was just activated and the request will end soon
+			}
+			return true;
+		}
+		// make sure this was called in the right place!
+		if (! did_action('AHEE__EE_System__load_espresso_addons')
+			|| did_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin')
+		) {
+			EE_Error::doing_it_wrong(
+				__METHOD__,
+				sprintf(
+					__(
+						'An attempt to register an EE_Addon named "%s" has failed because it was not registered at the correct time.  Please use the "AHEE__EE_System__load_espresso_addons" hook to register addons.',
+						'event_espresso'
+					),
+					$addon_name
+				),
+				'4.3.0'
+			);
+		}
+		// make sure addon settings are set correctly without overwriting anything existing
+		if (isset(self::$_settings[ $addon_name ])) {
+			self::$_settings[ $addon_name ] += $addon_settings;
+		} else {
+			self::$_settings[ $addon_name ] = $addon_settings;
+		}
+		return false;
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _setup_autoloaders($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['autoloader_paths'])) {
-            // setup autoloader for single file
-            EEH_Autoloader::instance()->register_autoloader(self::$_settings[ $addon_name ]['autoloader_paths']);
-        }
-        // setup autoloaders for folders
-        if (! empty(self::$_settings[ $addon_name ]['autoloader_folders'])) {
-            foreach ((array) self::$_settings[ $addon_name ]['autoloader_folders'] as $autoloader_folder) {
-                EEH_Autoloader::register_autoloaders_for_each_file_in_folder($autoloader_folder);
-            }
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _setup_autoloaders($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['autoloader_paths'])) {
+			// setup autoloader for single file
+			EEH_Autoloader::instance()->register_autoloader(self::$_settings[ $addon_name ]['autoloader_paths']);
+		}
+		// setup autoloaders for folders
+		if (! empty(self::$_settings[ $addon_name ]['autoloader_folders'])) {
+			foreach ((array) self::$_settings[ $addon_name ]['autoloader_folders'] as $autoloader_folder) {
+				EEH_Autoloader::register_autoloaders_for_each_file_in_folder($autoloader_folder);
+			}
+		}
+	}
 
 
-    /**
-     * register new models and extensions
-     *
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_models_and_extensions($addon_name)
-    {
-        // register new models
-        if (! empty(self::$_settings[ $addon_name ]['model_paths'])
-            || ! empty(self::$_settings[ $addon_name ]['class_paths'])
-        ) {
-            EE_Register_Model::register(
-                $addon_name,
-                array(
-                    'model_paths' => self::$_settings[ $addon_name ]['model_paths'],
-                    'class_paths' => self::$_settings[ $addon_name ]['class_paths'],
-                )
-            );
-        }
-        // register model extensions
-        if (! empty(self::$_settings[ $addon_name ]['model_extension_paths'])
-            || ! empty(self::$_settings[ $addon_name ]['class_extension_paths'])
-        ) {
-            EE_Register_Model_Extensions::register(
-                $addon_name,
-                array(
-                    'model_extension_paths' => self::$_settings[ $addon_name ]['model_extension_paths'],
-                    'class_extension_paths' => self::$_settings[ $addon_name ]['class_extension_paths'],
-                )
-            );
-        }
-    }
+	/**
+	 * register new models and extensions
+	 *
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_models_and_extensions($addon_name)
+	{
+		// register new models
+		if (! empty(self::$_settings[ $addon_name ]['model_paths'])
+			|| ! empty(self::$_settings[ $addon_name ]['class_paths'])
+		) {
+			EE_Register_Model::register(
+				$addon_name,
+				array(
+					'model_paths' => self::$_settings[ $addon_name ]['model_paths'],
+					'class_paths' => self::$_settings[ $addon_name ]['class_paths'],
+				)
+			);
+		}
+		// register model extensions
+		if (! empty(self::$_settings[ $addon_name ]['model_extension_paths'])
+			|| ! empty(self::$_settings[ $addon_name ]['class_extension_paths'])
+		) {
+			EE_Register_Model_Extensions::register(
+				$addon_name,
+				array(
+					'model_extension_paths' => self::$_settings[ $addon_name ]['model_extension_paths'],
+					'class_extension_paths' => self::$_settings[ $addon_name ]['class_extension_paths'],
+				)
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_data_migration_scripts($addon_name)
-    {
-        // setup DMS
-        if (! empty(self::$_settings[ $addon_name ]['dms_paths'])) {
-            EE_Register_Data_Migration_Scripts::register(
-                $addon_name,
-                array('dms_paths' => self::$_settings[ $addon_name ]['dms_paths'])
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_data_migration_scripts($addon_name)
+	{
+		// setup DMS
+		if (! empty(self::$_settings[ $addon_name ]['dms_paths'])) {
+			EE_Register_Data_Migration_Scripts::register(
+				$addon_name,
+				array('dms_paths' => self::$_settings[ $addon_name ]['dms_paths'])
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_config($addon_name)
-    {
-        // if config_class is present let's register config.
-        if (! empty(self::$_settings[ $addon_name ]['config_class'])) {
-            EE_Register_Config::register(
-                self::$_settings[ $addon_name ]['config_class'],
-                array(
-                    'config_section' => self::$_settings[ $addon_name ]['config_section'],
-                    'config_name'    => self::$_settings[ $addon_name ]['config_name'],
-                )
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_config($addon_name)
+	{
+		// if config_class is present let's register config.
+		if (! empty(self::$_settings[ $addon_name ]['config_class'])) {
+			EE_Register_Config::register(
+				self::$_settings[ $addon_name ]['config_class'],
+				array(
+					'config_section' => self::$_settings[ $addon_name ]['config_section'],
+					'config_name'    => self::$_settings[ $addon_name ]['config_name'],
+				)
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_admin_pages($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['admin_path'])) {
-            EE_Register_Admin_Page::register(
-                $addon_name,
-                array('page_path' => self::$_settings[ $addon_name ]['admin_path'])
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_admin_pages($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['admin_path'])) {
+			EE_Register_Admin_Page::register(
+				$addon_name,
+				array('page_path' => self::$_settings[ $addon_name ]['admin_path'])
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_modules($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['module_paths'])) {
-            EE_Register_Module::register(
-                $addon_name,
-                array('module_paths' => self::$_settings[ $addon_name ]['module_paths'])
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_modules($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['module_paths'])) {
+			EE_Register_Module::register(
+				$addon_name,
+				array('module_paths' => self::$_settings[ $addon_name ]['module_paths'])
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_shortcodes($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['shortcode_paths'])
-            || ! empty(self::$_settings[ $addon_name ]['shortcode_fqcns'])
-        ) {
-            EE_Register_Shortcode::register(
-                $addon_name,
-                array(
-                    'shortcode_paths' => isset(self::$_settings[ $addon_name ]['shortcode_paths'])
-                        ? self::$_settings[ $addon_name ]['shortcode_paths']
-                        : array(),
-                    'shortcode_fqcns' => isset(self::$_settings[ $addon_name ]['shortcode_fqcns'])
-                        ? self::$_settings[ $addon_name ]['shortcode_fqcns']
-                        : array(),
-                )
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_shortcodes($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['shortcode_paths'])
+			|| ! empty(self::$_settings[ $addon_name ]['shortcode_fqcns'])
+		) {
+			EE_Register_Shortcode::register(
+				$addon_name,
+				array(
+					'shortcode_paths' => isset(self::$_settings[ $addon_name ]['shortcode_paths'])
+						? self::$_settings[ $addon_name ]['shortcode_paths']
+						: array(),
+					'shortcode_fqcns' => isset(self::$_settings[ $addon_name ]['shortcode_fqcns'])
+						? self::$_settings[ $addon_name ]['shortcode_fqcns']
+						: array(),
+				)
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_widgets($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['widget_paths'])) {
-            EE_Register_Widget::register(
-                $addon_name,
-                array('widget_paths' => self::$_settings[ $addon_name ]['widget_paths'])
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_widgets($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['widget_paths'])) {
+			EE_Register_Widget::register(
+				$addon_name,
+				array('widget_paths' => self::$_settings[ $addon_name ]['widget_paths'])
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_capabilities($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['capabilities'])) {
-            EE_Register_Capabilities::register(
-                $addon_name,
-                array(
-                    'capabilities'    => self::$_settings[ $addon_name ]['capabilities'],
-                    'capability_maps' => self::$_settings[ $addon_name ]['capability_maps'],
-                )
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_capabilities($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['capabilities'])) {
+			EE_Register_Capabilities::register(
+				$addon_name,
+				array(
+					'capabilities'    => self::$_settings[ $addon_name ]['capabilities'],
+					'capability_maps' => self::$_settings[ $addon_name ]['capability_maps'],
+				)
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_message_types($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['message_types'])) {
-            add_action(
-                'EE_Brewing_Regular___messages_caf',
-                array('EE_Register_Addon', 'register_message_types')
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_message_types($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['message_types'])) {
+			add_action(
+				'EE_Brewing_Regular___messages_caf',
+				array('EE_Register_Addon', 'register_message_types')
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws EE_Error
-     */
-    private static function _register_custom_post_types($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['custom_post_types'])
-            || ! empty(self::$_settings[ $addon_name ]['custom_taxonomies'])
-        ) {
-            EE_Register_CPT::register(
-                $addon_name,
-                array(
-                    'cpts'          => self::$_settings[ $addon_name ]['custom_post_types'],
-                    'cts'           => self::$_settings[ $addon_name ]['custom_taxonomies'],
-                    'default_terms' => self::$_settings[ $addon_name ]['default_terms'],
-                )
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private static function _register_custom_post_types($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['custom_post_types'])
+			|| ! empty(self::$_settings[ $addon_name ]['custom_taxonomies'])
+		) {
+			EE_Register_CPT::register(
+				$addon_name,
+				array(
+					'cpts'          => self::$_settings[ $addon_name ]['custom_post_types'],
+					'cts'           => self::$_settings[ $addon_name ]['custom_taxonomies'],
+					'default_terms' => self::$_settings[ $addon_name ]['default_terms'],
+				)
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    private static function _register_payment_methods($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['payment_method_paths'])) {
-            EE_Register_Payment_Method::register(
-                $addon_name,
-                array('payment_method_paths' => self::$_settings[ $addon_name ]['payment_method_paths'])
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	private static function _register_payment_methods($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['payment_method_paths'])) {
+			EE_Register_Payment_Method::register(
+				$addon_name,
+				array('payment_method_paths' => self::$_settings[ $addon_name ]['payment_method_paths'])
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    private static function registerPrivacyPolicies($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['privacy_policies'])) {
-            EE_Register_Privacy_Policy::register(
-                $addon_name,
-                self::$_settings[ $addon_name ]['privacy_policies']
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	private static function registerPrivacyPolicies($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['privacy_policies'])) {
+			EE_Register_Privacy_Policy::register(
+				$addon_name,
+				self::$_settings[ $addon_name ]['privacy_policies']
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     */
-    private static function registerPersonalDataExporters($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['personal_data_exporters'])) {
-            EE_Register_Personal_Data_Eraser::register(
-                $addon_name,
-                self::$_settings[ $addon_name ]['personal_data_exporters']
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 */
+	private static function registerPersonalDataExporters($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['personal_data_exporters'])) {
+			EE_Register_Personal_Data_Eraser::register(
+				$addon_name,
+				self::$_settings[ $addon_name ]['personal_data_exporters']
+			);
+		}
+	}
 
 
-    /**
-     * @param string $addon_name
-     * @return void
-     */
-    private static function registerPersonalDataErasers($addon_name)
-    {
-        if (! empty(self::$_settings[ $addon_name ]['personal_data_erasers'])) {
-            EE_Register_Personal_Data_Eraser::register(
-                $addon_name,
-                self::$_settings[ $addon_name ]['personal_data_erasers']
-            );
-        }
-    }
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 */
+	private static function registerPersonalDataErasers($addon_name)
+	{
+		if (! empty(self::$_settings[ $addon_name ]['personal_data_erasers'])) {
+			EE_Register_Personal_Data_Eraser::register(
+				$addon_name,
+				self::$_settings[ $addon_name ]['personal_data_erasers']
+			);
+		}
+	}
 
 
-    /**
-     * Loads and instantiates the EE_Addon class and adds it onto the registry
-     *
-     * @param string $addon_name
-     * @return EE_Addon
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws ReflectionException
-     * @throws EE_Error
-     */
-    private static function _load_and_init_addon_class($addon_name)
-    {
-        $loader = EventEspresso\core\services\loaders\LoaderFactory::getLoader();
-        $addon = $loader->getShared(
-            self::$_settings[ $addon_name ]['class_name'],
-            array('EE_Registry::create(addon)' => true)
-        );
-        // setter inject dep map if required
-        if ($addon instanceof RequiresDependencyMapInterface && $addon->dependencyMap() === null) {
-            $addon->setDependencyMap($loader->getShared('EE_Dependency_Map'));
-        }
-        // setter inject domain if required
-        if ($addon instanceof RequiresDomainInterface
-            && $addon->domain() === null
-        ) {
-            // using supplied Domain object
-            $domain = self::$_settings[ $addon_name ]['domain'] instanceof DomainInterface
-                ? self::$_settings[ $addon_name ]['domain']
-                : null;
-            // or construct one using Domain FQCN
-            if ($domain === null && self::$_settings[ $addon_name ]['domain_fqcn'] !== '') {
-                $domain = $loader->getShared(
-                    self::$_settings[ $addon_name ]['domain_fqcn'],
-                    array(
-                        new EventEspresso\core\domain\values\FilePath(
-                            self::$_settings[ $addon_name ]['main_file_path']
-                        ),
-                        EventEspresso\core\domain\values\Version::fromString(
-                            self::$_settings[ $addon_name ]['version']
-                        ),
-                    )
-                );
-            }
-            if ($domain instanceof DomainInterface) {
-                $addon->setDomain($domain);
-            }
-        }
-        $addon->set_name($addon_name);
-        $addon->set_plugin_slug(self::$_settings[ $addon_name ]['plugin_slug']);
-        $addon->set_plugin_basename(self::$_settings[ $addon_name ]['plugin_basename']);
-        $addon->set_main_plugin_file(self::$_settings[ $addon_name ]['main_file_path']);
-        $addon->set_plugin_action_slug(self::$_settings[ $addon_name ]['plugin_action_slug']);
-        $addon->set_plugins_page_row(self::$_settings[ $addon_name ]['plugins_page_row']);
-        $addon->set_version(self::$_settings[ $addon_name ]['version']);
-        $addon->set_min_core_version(self::_effective_version(self::$_settings[ $addon_name ]['min_core_version']));
-        $addon->set_config_section(self::$_settings[ $addon_name ]['config_section']);
-        $addon->set_config_class(self::$_settings[ $addon_name ]['config_class']);
-        $addon->set_config_name(self::$_settings[ $addon_name ]['config_name']);
-        // setup the add-on's pue_slug if we have one.
-        if (! empty(self::$_settings[ $addon_name ]['pue_options']['pue_plugin_slug'])) {
-            $addon->setPueSlug(self::$_settings[ $addon_name ]['pue_options']['pue_plugin_slug']);
-        }
-        // unfortunately this can't be hooked in upon construction, because we don't have
-        // the plugin mainfile's path upon construction.
-        register_deactivation_hook($addon->get_main_plugin_file(), array($addon, 'deactivation'));
-        // call any additional admin_callback functions during load_admin_controller hook
-        if (! empty(self::$_settings[ $addon_name ]['admin_callback'])) {
-            add_action(
-                'AHEE__EE_System__load_controllers__load_admin_controllers',
-                array($addon, self::$_settings[ $addon_name ]['admin_callback'])
-            );
-        }
-        return $addon;
-    }
+	/**
+	 * Loads and instantiates the EE_Addon class and adds it onto the registry
+	 *
+	 * @param string $addon_name
+	 * @return EE_Addon
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws ReflectionException
+	 * @throws EE_Error
+	 */
+	private static function _load_and_init_addon_class($addon_name)
+	{
+		$loader = EventEspresso\core\services\loaders\LoaderFactory::getLoader();
+		$addon = $loader->getShared(
+			self::$_settings[ $addon_name ]['class_name'],
+			array('EE_Registry::create(addon)' => true)
+		);
+		// setter inject dep map if required
+		if ($addon instanceof RequiresDependencyMapInterface && $addon->dependencyMap() === null) {
+			$addon->setDependencyMap($loader->getShared('EE_Dependency_Map'));
+		}
+		// setter inject domain if required
+		if ($addon instanceof RequiresDomainInterface
+			&& $addon->domain() === null
+		) {
+			// using supplied Domain object
+			$domain = self::$_settings[ $addon_name ]['domain'] instanceof DomainInterface
+				? self::$_settings[ $addon_name ]['domain']
+				: null;
+			// or construct one using Domain FQCN
+			if ($domain === null && self::$_settings[ $addon_name ]['domain_fqcn'] !== '') {
+				$domain = $loader->getShared(
+					self::$_settings[ $addon_name ]['domain_fqcn'],
+					array(
+						new EventEspresso\core\domain\values\FilePath(
+							self::$_settings[ $addon_name ]['main_file_path']
+						),
+						EventEspresso\core\domain\values\Version::fromString(
+							self::$_settings[ $addon_name ]['version']
+						),
+					)
+				);
+			}
+			if ($domain instanceof DomainInterface) {
+				$addon->setDomain($domain);
+			}
+		}
+		$addon->set_name($addon_name);
+		$addon->set_plugin_slug(self::$_settings[ $addon_name ]['plugin_slug']);
+		$addon->set_plugin_basename(self::$_settings[ $addon_name ]['plugin_basename']);
+		$addon->set_main_plugin_file(self::$_settings[ $addon_name ]['main_file_path']);
+		$addon->set_plugin_action_slug(self::$_settings[ $addon_name ]['plugin_action_slug']);
+		$addon->set_plugins_page_row(self::$_settings[ $addon_name ]['plugins_page_row']);
+		$addon->set_version(self::$_settings[ $addon_name ]['version']);
+		$addon->set_min_core_version(self::_effective_version(self::$_settings[ $addon_name ]['min_core_version']));
+		$addon->set_config_section(self::$_settings[ $addon_name ]['config_section']);
+		$addon->set_config_class(self::$_settings[ $addon_name ]['config_class']);
+		$addon->set_config_name(self::$_settings[ $addon_name ]['config_name']);
+		// setup the add-on's pue_slug if we have one.
+		if (! empty(self::$_settings[ $addon_name ]['pue_options']['pue_plugin_slug'])) {
+			$addon->setPueSlug(self::$_settings[ $addon_name ]['pue_options']['pue_plugin_slug']);
+		}
+		// unfortunately this can't be hooked in upon construction, because we don't have
+		// the plugin mainfile's path upon construction.
+		register_deactivation_hook($addon->get_main_plugin_file(), array($addon, 'deactivation'));
+		// call any additional admin_callback functions during load_admin_controller hook
+		if (! empty(self::$_settings[ $addon_name ]['admin_callback'])) {
+			add_action(
+				'AHEE__EE_System__load_controllers__load_admin_controllers',
+				array($addon, self::$_settings[ $addon_name ]['admin_callback'])
+			);
+		}
+		return $addon;
+	}
 
 
-    /**
-     *    load_pue_update - Update notifications
-     *
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function load_pue_update()
-    {
-        // load PUE client
-        require_once EE_THIRD_PARTY . 'pue/pue-client.php';
-        $license_server = defined('PUE_UPDATES_ENDPOINT') ? PUE_UPDATES_ENDPOINT : 'https://eventespresso.com';
-        // cycle thru settings
-        foreach (self::$_settings as $settings) {
-            if (! empty($settings['pue_options'])) {
-                // initiate the class and start the plugin update engine!
-                new PluginUpdateEngineChecker(
-                    // host file URL
-                    $license_server,
-                    // plugin slug(s)
-                    array(
-                        'premium'    => array('p' => $settings['pue_options']['pue_plugin_slug']),
-                        'prerelease' => array('beta' => $settings['pue_options']['pue_plugin_slug'] . '-pr'),
-                    ),
-                    // options
-                    array(
-                        'apikey'            => EE_Registry::instance()->NET_CFG->core->site_license_key,
-                        'lang_domain'       => 'event_espresso',
-                        'checkPeriod'       => $settings['pue_options']['checkPeriod'],
-                        'option_key'        => 'ee_site_license_key',
-                        'options_page_slug' => 'event_espresso',
-                        'plugin_basename'   => $settings['pue_options']['plugin_basename'],
-                        // if use_wp_update is TRUE it means you want FREE versions of the plugin to be updated from WP
-                        'use_wp_update'     => $settings['pue_options']['use_wp_update'],
-                    )
-                );
-            }
-        }
-    }
+	/**
+	 *    load_pue_update - Update notifications
+	 *
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function load_pue_update()
+	{
+		// load PUE client
+		require_once EE_THIRD_PARTY . 'pue/pue-client.php';
+		$license_server = defined('PUE_UPDATES_ENDPOINT') ? PUE_UPDATES_ENDPOINT : 'https://eventespresso.com';
+		// cycle thru settings
+		foreach (self::$_settings as $settings) {
+			if (! empty($settings['pue_options'])) {
+				// initiate the class and start the plugin update engine!
+				new PluginUpdateEngineChecker(
+					// host file URL
+					$license_server,
+					// plugin slug(s)
+					array(
+						'premium'    => array('p' => $settings['pue_options']['pue_plugin_slug']),
+						'prerelease' => array('beta' => $settings['pue_options']['pue_plugin_slug'] . '-pr'),
+					),
+					// options
+					array(
+						'apikey'            => EE_Registry::instance()->NET_CFG->core->site_license_key,
+						'lang_domain'       => 'event_espresso',
+						'checkPeriod'       => $settings['pue_options']['checkPeriod'],
+						'option_key'        => 'ee_site_license_key',
+						'options_page_slug' => 'event_espresso',
+						'plugin_basename'   => $settings['pue_options']['plugin_basename'],
+						// if use_wp_update is TRUE it means you want FREE versions of the plugin to be updated from WP
+						'use_wp_update'     => $settings['pue_options']['use_wp_update'],
+					)
+				);
+			}
+		}
+	}
 
 
-    /**
-     * Callback for EE_Brewing_Regular__messages_caf hook used to register message types.
-     *
-     * @since 4.4.0
-     * @return void
-     * @throws EE_Error
-     */
-    public static function register_message_types()
-    {
-        foreach (self::$_settings as $addon_name => $settings) {
-            if (! empty($settings['message_types'])) {
-                foreach ((array) $settings['message_types'] as $message_type => $message_type_settings) {
-                    EE_Register_Message_Type::register($message_type, $message_type_settings);
-                }
-            }
-        }
-    }
+	/**
+	 * Callback for EE_Brewing_Regular__messages_caf hook used to register message types.
+	 *
+	 * @since 4.4.0
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public static function register_message_types()
+	{
+		foreach (self::$_settings as $addon_name => $settings) {
+			if (! empty($settings['message_types'])) {
+				foreach ((array) $settings['message_types'] as $message_type => $message_type_settings) {
+					EE_Register_Message_Type::register($message_type, $message_type_settings);
+				}
+			}
+		}
+	}
 
 
-    /**
-     * This deregisters an addon that was previously registered with a specific addon_name.
-     *
-     * @since    4.3.0
-     * @param string $addon_name the name for the addon that was previously registered
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function deregister($addon_name = null)
-    {
-        if (isset(self::$_settings[ $addon_name ]['class_name'])) {
-            try {
-                do_action('AHEE__EE_Register_Addon__deregister__before', $addon_name);
-                $class_name = self::$_settings[ $addon_name ]['class_name'];
-                if (! empty(self::$_settings[ $addon_name ]['dms_paths'])) {
-                    // setup DMS
-                    EE_Register_Data_Migration_Scripts::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['admin_path'])) {
-                    // register admin page
-                    EE_Register_Admin_Page::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['module_paths'])) {
-                    // add to list of modules to be registered
-                    EE_Register_Module::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['shortcode_paths'])
-                    || ! empty(self::$_settings[ $addon_name ]['shortcode_fqcns'])
-                ) {
-                    // add to list of shortcodes to be registered
-                    EE_Register_Shortcode::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['config_class'])) {
-                    // if config_class present let's register config.
-                    EE_Register_Config::deregister(self::$_settings[ $addon_name ]['config_class']);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['widget_paths'])) {
-                    // add to list of widgets to be registered
-                    EE_Register_Widget::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['model_paths'])
-                    || ! empty(self::$_settings[ $addon_name ]['class_paths'])
-                ) {
-                    // add to list of shortcodes to be registered
-                    EE_Register_Model::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['model_extension_paths'])
-                    || ! empty(self::$_settings[ $addon_name ]['class_extension_paths'])
-                ) {
-                    // add to list of shortcodes to be registered
-                    EE_Register_Model_Extensions::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['message_types'])) {
-                    foreach ((array) self::$_settings[ $addon_name ]['message_types'] as $message_type => $message_type_settings) {
-                        EE_Register_Message_Type::deregister($message_type);
-                    }
-                }
-                // deregister capabilities for addon
-                if (! empty(self::$_settings[ $addon_name ]['capabilities'])
-                    || ! empty(self::$_settings[ $addon_name ]['capability_maps'])
-                ) {
-                    EE_Register_Capabilities::deregister($addon_name);
-                }
-                // deregister custom_post_types for addon
-                if (! empty(self::$_settings[ $addon_name ]['custom_post_types'])) {
-                    EE_Register_CPT::deregister($addon_name);
-                }
-                if (! empty(self::$_settings[ $addon_name ]['payment_method_paths'])) {
-                    EE_Register_Payment_Method::deregister($addon_name);
-                }
-                $addon = EE_Registry::instance()->getAddon($class_name);
-                if ($addon instanceof EE_Addon) {
-                    remove_action(
-                        'deactivate_' . $addon->get_main_plugin_file_basename(),
-                        array($addon, 'deactivation')
-                    );
-                    remove_action(
-                        'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-                        array($addon, 'initialize_db_if_no_migrations_required')
-                    );
-                    // remove `after_registration` call
-                    remove_action(
-                        'AHEE__EE_System__load_espresso_addons__complete',
-                        array($addon, 'after_registration'),
-                        999
-                    );
-                }
-                EE_Registry::instance()->removeAddon($class_name);
-            } catch (OutOfBoundsException $addon_not_yet_registered_exception) {
-                // the add-on was not yet registered in the registry,
-                // so RegistryContainer::__get() throws this exception.
-                // also no need to worry about this or log it,
-                // it's ok to deregister an add-on before its registered in the registry
-            } catch (Exception $e) {
-                new ExceptionLogger($e);
-            }
-            unset(self::$_settings[ $addon_name ]);
-            do_action('AHEE__EE_Register_Addon__deregister__after', $addon_name);
-        }
-    }
+	/**
+	 * This deregisters an addon that was previously registered with a specific addon_name.
+	 *
+	 * @since    4.3.0
+	 * @param string $addon_name the name for the addon that was previously registered
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function deregister($addon_name = null)
+	{
+		if (isset(self::$_settings[ $addon_name ]['class_name'])) {
+			try {
+				do_action('AHEE__EE_Register_Addon__deregister__before', $addon_name);
+				$class_name = self::$_settings[ $addon_name ]['class_name'];
+				if (! empty(self::$_settings[ $addon_name ]['dms_paths'])) {
+					// setup DMS
+					EE_Register_Data_Migration_Scripts::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['admin_path'])) {
+					// register admin page
+					EE_Register_Admin_Page::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['module_paths'])) {
+					// add to list of modules to be registered
+					EE_Register_Module::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['shortcode_paths'])
+					|| ! empty(self::$_settings[ $addon_name ]['shortcode_fqcns'])
+				) {
+					// add to list of shortcodes to be registered
+					EE_Register_Shortcode::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['config_class'])) {
+					// if config_class present let's register config.
+					EE_Register_Config::deregister(self::$_settings[ $addon_name ]['config_class']);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['widget_paths'])) {
+					// add to list of widgets to be registered
+					EE_Register_Widget::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['model_paths'])
+					|| ! empty(self::$_settings[ $addon_name ]['class_paths'])
+				) {
+					// add to list of shortcodes to be registered
+					EE_Register_Model::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['model_extension_paths'])
+					|| ! empty(self::$_settings[ $addon_name ]['class_extension_paths'])
+				) {
+					// add to list of shortcodes to be registered
+					EE_Register_Model_Extensions::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['message_types'])) {
+					foreach ((array) self::$_settings[ $addon_name ]['message_types'] as $message_type => $message_type_settings) {
+						EE_Register_Message_Type::deregister($message_type);
+					}
+				}
+				// deregister capabilities for addon
+				if (! empty(self::$_settings[ $addon_name ]['capabilities'])
+					|| ! empty(self::$_settings[ $addon_name ]['capability_maps'])
+				) {
+					EE_Register_Capabilities::deregister($addon_name);
+				}
+				// deregister custom_post_types for addon
+				if (! empty(self::$_settings[ $addon_name ]['custom_post_types'])) {
+					EE_Register_CPT::deregister($addon_name);
+				}
+				if (! empty(self::$_settings[ $addon_name ]['payment_method_paths'])) {
+					EE_Register_Payment_Method::deregister($addon_name);
+				}
+				$addon = EE_Registry::instance()->getAddon($class_name);
+				if ($addon instanceof EE_Addon) {
+					remove_action(
+						'deactivate_' . $addon->get_main_plugin_file_basename(),
+						array($addon, 'deactivation')
+					);
+					remove_action(
+						'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+						array($addon, 'initialize_db_if_no_migrations_required')
+					);
+					// remove `after_registration` call
+					remove_action(
+						'AHEE__EE_System__load_espresso_addons__complete',
+						array($addon, 'after_registration'),
+						999
+					);
+				}
+				EE_Registry::instance()->removeAddon($class_name);
+			} catch (OutOfBoundsException $addon_not_yet_registered_exception) {
+				// the add-on was not yet registered in the registry,
+				// so RegistryContainer::__get() throws this exception.
+				// also no need to worry about this or log it,
+				// it's ok to deregister an add-on before its registered in the registry
+			} catch (Exception $e) {
+				new ExceptionLogger($e);
+			}
+			unset(self::$_settings[ $addon_name ]);
+			do_action('AHEE__EE_Register_Addon__deregister__after', $addon_name);
+		}
+	}
 }

Spacing +117 added lines, -117 removed lines

@@ -69,15 +69,15 @@ 
         // offsets:    0 . 1 . 2 . 3 . 4
         $version_parts = explode('.', $min_core_version);
         // check they specified the micro version (after 2nd period)
-        if (! isset($version_parts[2])) {
+        if ( ! isset($version_parts[2])) {
             $version_parts[2] = '0';
         }
         // if they didn't specify the 'p', or 'rc' part. Just assume the lowest possible
         // soon we can assume that's 'rc', but this current version is 'alpha'
-        if (! isset($version_parts[3])) {
+        if ( ! isset($version_parts[3])) {
             $version_parts[3] = 'dev';
         }
-        if (! isset($version_parts[4])) {
+        if ( ! isset($version_parts[4])) {
             $version_parts[4] = '000';
         }
         return implode('.', $version_parts);
@@ -264,7 +264,7 @@ 
         // setup PUE
         EE_Register_Addon::_parse_pue_options($addon_name, $class_name, $setup_args);
         // does this addon work with this version of core or WordPress ?
-        if (! EE_Register_Addon::_addon_is_compatible($addon_name, $addon_settings)) {
+        if ( ! EE_Register_Addon::_addon_is_compatible($addon_name, $addon_settings)) {
             return;
         }
         // register namespaces
@@ -328,7 +328,7 @@ 
                 )
             );
         }
-        if (! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {
+        if ( ! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {
             throw new EE_Error(
                 sprintf(
                     __(
@@ -340,7 +340,7 @@ 
             );
         }
         // check that addon has not already been registered with that name
-        if (isset(self::$_settings[ $addon_name ]) && ! did_action('activate_plugin')) {
+        if (isset(self::$_settings[$addon_name]) && ! did_action('activate_plugin')) {
             throw new EE_Error(
                 sprintf(
                     __(
@@ -372,7 +372,7 @@ 
         // check if classname is fully  qualified or is a legacy classname already prefixed with 'EE_'
         return strpos($class_name, '\\') || strpos($class_name, 'EE_') === 0
             ? $class_name
-            : 'EE_' . $class_name;
+            : 'EE_'.$class_name;
     }
 
 
@@ -539,9 +539,9 @@ 
         global $wp_version;
         $incompatibility_message = '';
         // check whether this addon version is compatible with EE core
-        if (isset(EE_Register_Addon::$_incompatible_addons[ $addon_name ])
+        if (isset(EE_Register_Addon::$_incompatible_addons[$addon_name])
             && ! self::_meets_min_core_version_requirement(
-                EE_Register_Addon::$_incompatible_addons[ $addon_name ],
+                EE_Register_Addon::$_incompatible_addons[$addon_name],
                 $addon_settings['version']
             )
         ) {
@@ -552,11 +552,11 @@ 
                 ),
                 $addon_name,
                 '<br />',
-                EE_Register_Addon::$_incompatible_addons[ $addon_name ],
+                EE_Register_Addon::$_incompatible_addons[$addon_name],
                 '<span style="font-weight: bold; color: #D54E21;">',
                 '</span><br />'
             );
-        } elseif (! self::_meets_min_core_version_requirement($addon_settings['min_core_version'], espresso_version())
+        } elseif ( ! self::_meets_min_core_version_requirement($addon_settings['min_core_version'], espresso_version())
         ) {
             $incompatibility_message = sprintf(
                 __(
@@ -583,7 +583,7 @@ 
                 '</span><br />'
             );
         }
-        if (! empty($incompatibility_message)) {
+        if ( ! empty($incompatibility_message)) {
             // remove 'activate' from the REQUEST
             // so WP doesn't erroneously tell the user the plugin activated fine when it didn't
             unset($_GET['activate'], $_REQUEST['activate']);
@@ -611,11 +611,11 @@ 
      */
     private static function _parse_pue_options($addon_name, $class_name, array $setup_args)
     {
-        if (! empty($setup_args['pue_options'])) {
-            self::$_settings[ $addon_name ]['pue_options'] = array(
+        if ( ! empty($setup_args['pue_options'])) {
+            self::$_settings[$addon_name]['pue_options'] = array(
                 'pue_plugin_slug' => isset($setup_args['pue_options']['pue_plugin_slug'])
                     ? (string) $setup_args['pue_options']['pue_plugin_slug']
-                    : 'espresso_' . strtolower($class_name),
+                    : 'espresso_'.strtolower($class_name),
                 'plugin_basename' => isset($setup_args['pue_options']['plugin_basename'])
                     ? (string) $setup_args['pue_options']['plugin_basename']
                     : plugin_basename($setup_args['main_file_path']),
@@ -674,12 +674,12 @@ 
             // (as the newly-activated addon wasn't around the first time addons were registered).
             // Note: the presence of pue_options in the addon registration options will initialize the $_settings
             // property for the add-on, but the add-on is only partially initialized.  Hence, the additional check.
-            if (! isset(self::$_settings[ $addon_name ])
-                || (isset(self::$_settings[ $addon_name ])
-                    && ! isset(self::$_settings[ $addon_name ]['class_name'])
+            if ( ! isset(self::$_settings[$addon_name])
+                || (isset(self::$_settings[$addon_name])
+                    && ! isset(self::$_settings[$addon_name]['class_name'])
                 )
             ) {
-                self::$_settings[ $addon_name ] = $addon_settings;
+                self::$_settings[$addon_name] = $addon_settings;
                 $addon = self::_load_and_init_addon_class($addon_name);
                 $addon->set_activation_indicator_option();
                 // dont bother setting up the rest of the addon.
@@ -688,7 +688,7 @@ 
             return true;
         }
         // make sure this was called in the right place!
-        if (! did_action('AHEE__EE_System__load_espresso_addons')
+        if ( ! did_action('AHEE__EE_System__load_espresso_addons')
             || did_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin')
         ) {
             EE_Error::doing_it_wrong(
@@ -704,10 +704,10 @@ 
             );
         }
         // make sure addon settings are set correctly without overwriting anything existing
-        if (isset(self::$_settings[ $addon_name ])) {
-            self::$_settings[ $addon_name ] += $addon_settings;
+        if (isset(self::$_settings[$addon_name])) {
+            self::$_settings[$addon_name] += $addon_settings;
         } else {
-            self::$_settings[ $addon_name ] = $addon_settings;
+            self::$_settings[$addon_name] = $addon_settings;
         }
         return false;
     }
@@ -720,13 +720,13 @@ 
      */
     private static function _setup_autoloaders($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['autoloader_paths'])) {
+        if ( ! empty(self::$_settings[$addon_name]['autoloader_paths'])) {
             // setup autoloader for single file
-            EEH_Autoloader::instance()->register_autoloader(self::$_settings[ $addon_name ]['autoloader_paths']);
+            EEH_Autoloader::instance()->register_autoloader(self::$_settings[$addon_name]['autoloader_paths']);
         }
         // setup autoloaders for folders
-        if (! empty(self::$_settings[ $addon_name ]['autoloader_folders'])) {
-            foreach ((array) self::$_settings[ $addon_name ]['autoloader_folders'] as $autoloader_folder) {
+        if ( ! empty(self::$_settings[$addon_name]['autoloader_folders'])) {
+            foreach ((array) self::$_settings[$addon_name]['autoloader_folders'] as $autoloader_folder) {
                 EEH_Autoloader::register_autoloaders_for_each_file_in_folder($autoloader_folder);
             }
         }
@@ -743,26 +743,26 @@ 
     private static function _register_models_and_extensions($addon_name)
     {
         // register new models
-        if (! empty(self::$_settings[ $addon_name ]['model_paths'])
-            || ! empty(self::$_settings[ $addon_name ]['class_paths'])
+        if ( ! empty(self::$_settings[$addon_name]['model_paths'])
+            || ! empty(self::$_settings[$addon_name]['class_paths'])
         ) {
             EE_Register_Model::register(
                 $addon_name,
                 array(
-                    'model_paths' => self::$_settings[ $addon_name ]['model_paths'],
-                    'class_paths' => self::$_settings[ $addon_name ]['class_paths'],
+                    'model_paths' => self::$_settings[$addon_name]['model_paths'],
+                    'class_paths' => self::$_settings[$addon_name]['class_paths'],
                 )
             );
         }
         // register model extensions
-        if (! empty(self::$_settings[ $addon_name ]['model_extension_paths'])
-            || ! empty(self::$_settings[ $addon_name ]['class_extension_paths'])
+        if ( ! empty(self::$_settings[$addon_name]['model_extension_paths'])
+            || ! empty(self::$_settings[$addon_name]['class_extension_paths'])
         ) {
             EE_Register_Model_Extensions::register(
                 $addon_name,
                 array(
-                    'model_extension_paths' => self::$_settings[ $addon_name ]['model_extension_paths'],
-                    'class_extension_paths' => self::$_settings[ $addon_name ]['class_extension_paths'],
+                    'model_extension_paths' => self::$_settings[$addon_name]['model_extension_paths'],
+                    'class_extension_paths' => self::$_settings[$addon_name]['class_extension_paths'],
                 )
             );
         }
@@ -777,10 +777,10 @@ 
     private static function _register_data_migration_scripts($addon_name)
     {
         // setup DMS
-        if (! empty(self::$_settings[ $addon_name ]['dms_paths'])) {
+        if ( ! empty(self::$_settings[$addon_name]['dms_paths'])) {
             EE_Register_Data_Migration_Scripts::register(
                 $addon_name,
-                array('dms_paths' => self::$_settings[ $addon_name ]['dms_paths'])
+                array('dms_paths' => self::$_settings[$addon_name]['dms_paths'])
             );
         }
     }
@@ -794,12 +794,12 @@ 
     private static function _register_config($addon_name)
     {
         // if config_class is present let's register config.
-        if (! empty(self::$_settings[ $addon_name ]['config_class'])) {
+        if ( ! empty(self::$_settings[$addon_name]['config_class'])) {
             EE_Register_Config::register(
-                self::$_settings[ $addon_name ]['config_class'],
+                self::$_settings[$addon_name]['config_class'],
                 array(
-                    'config_section' => self::$_settings[ $addon_name ]['config_section'],
-                    'config_name'    => self::$_settings[ $addon_name ]['config_name'],
+                    'config_section' => self::$_settings[$addon_name]['config_section'],
+                    'config_name'    => self::$_settings[$addon_name]['config_name'],
                 )
             );
         }
@@ -813,10 +813,10 @@ 
      */
     private static function _register_admin_pages($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['admin_path'])) {
+        if ( ! empty(self::$_settings[$addon_name]['admin_path'])) {
             EE_Register_Admin_Page::register(
                 $addon_name,
-                array('page_path' => self::$_settings[ $addon_name ]['admin_path'])
+                array('page_path' => self::$_settings[$addon_name]['admin_path'])
             );
         }
     }
@@ -829,10 +829,10 @@ 
      */
     private static function _register_modules($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['module_paths'])) {
+        if ( ! empty(self::$_settings[$addon_name]['module_paths'])) {
             EE_Register_Module::register(
                 $addon_name,
-                array('module_paths' => self::$_settings[ $addon_name ]['module_paths'])
+                array('module_paths' => self::$_settings[$addon_name]['module_paths'])
             );
         }
     }
@@ -845,17 +845,17 @@ 
      */
     private static function _register_shortcodes($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['shortcode_paths'])
-            || ! empty(self::$_settings[ $addon_name ]['shortcode_fqcns'])
+        if ( ! empty(self::$_settings[$addon_name]['shortcode_paths'])
+            || ! empty(self::$_settings[$addon_name]['shortcode_fqcns'])
         ) {
             EE_Register_Shortcode::register(
                 $addon_name,
                 array(
-                    'shortcode_paths' => isset(self::$_settings[ $addon_name ]['shortcode_paths'])
-                        ? self::$_settings[ $addon_name ]['shortcode_paths']
+                    'shortcode_paths' => isset(self::$_settings[$addon_name]['shortcode_paths'])
+                        ? self::$_settings[$addon_name]['shortcode_paths']
                         : array(),
-                    'shortcode_fqcns' => isset(self::$_settings[ $addon_name ]['shortcode_fqcns'])
-                        ? self::$_settings[ $addon_name ]['shortcode_fqcns']
+                    'shortcode_fqcns' => isset(self::$_settings[$addon_name]['shortcode_fqcns'])
+                        ? self::$_settings[$addon_name]['shortcode_fqcns']
                         : array(),
                 )
             );
@@ -870,10 +870,10 @@ 
      */
     private static function _register_widgets($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['widget_paths'])) {
+        if ( ! empty(self::$_settings[$addon_name]['widget_paths'])) {
             EE_Register_Widget::register(
                 $addon_name,
-                array('widget_paths' => self::$_settings[ $addon_name ]['widget_paths'])
+                array('widget_paths' => self::$_settings[$addon_name]['widget_paths'])
             );
         }
     }
@@ -886,12 +886,12 @@ 
      */
     private static function _register_capabilities($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['capabilities'])) {
+        if ( ! empty(self::$_settings[$addon_name]['capabilities'])) {
             EE_Register_Capabilities::register(
                 $addon_name,
                 array(
-                    'capabilities'    => self::$_settings[ $addon_name ]['capabilities'],
-                    'capability_maps' => self::$_settings[ $addon_name ]['capability_maps'],
+                    'capabilities'    => self::$_settings[$addon_name]['capabilities'],
+                    'capability_maps' => self::$_settings[$addon_name]['capability_maps'],
                 )
             );
         }
@@ -905,7 +905,7 @@ 
      */
     private static function _register_message_types($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['message_types'])) {
+        if ( ! empty(self::$_settings[$addon_name]['message_types'])) {
             add_action(
                 'EE_Brewing_Regular___messages_caf',
                 array('EE_Register_Addon', 'register_message_types')
@@ -921,15 +921,15 @@ 
      */
     private static function _register_custom_post_types($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['custom_post_types'])
-            || ! empty(self::$_settings[ $addon_name ]['custom_taxonomies'])
+        if ( ! empty(self::$_settings[$addon_name]['custom_post_types'])
+            || ! empty(self::$_settings[$addon_name]['custom_taxonomies'])
         ) {
             EE_Register_CPT::register(
                 $addon_name,
                 array(
-                    'cpts'          => self::$_settings[ $addon_name ]['custom_post_types'],
-                    'cts'           => self::$_settings[ $addon_name ]['custom_taxonomies'],
-                    'default_terms' => self::$_settings[ $addon_name ]['default_terms'],
+                    'cpts'          => self::$_settings[$addon_name]['custom_post_types'],
+                    'cts'           => self::$_settings[$addon_name]['custom_taxonomies'],
+                    'default_terms' => self::$_settings[$addon_name]['default_terms'],
                 )
             );
         }
@@ -947,10 +947,10 @@ 
      */
     private static function _register_payment_methods($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['payment_method_paths'])) {
+        if ( ! empty(self::$_settings[$addon_name]['payment_method_paths'])) {
             EE_Register_Payment_Method::register(
                 $addon_name,
-                array('payment_method_paths' => self::$_settings[ $addon_name ]['payment_method_paths'])
+                array('payment_method_paths' => self::$_settings[$addon_name]['payment_method_paths'])
             );
         }
     }
@@ -967,10 +967,10 @@ 
      */
     private static function registerPrivacyPolicies($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['privacy_policies'])) {
+        if ( ! empty(self::$_settings[$addon_name]['privacy_policies'])) {
             EE_Register_Privacy_Policy::register(
                 $addon_name,
-                self::$_settings[ $addon_name ]['privacy_policies']
+                self::$_settings[$addon_name]['privacy_policies']
             );
         }
     }
@@ -982,10 +982,10 @@ 
      */
     private static function registerPersonalDataExporters($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['personal_data_exporters'])) {
+        if ( ! empty(self::$_settings[$addon_name]['personal_data_exporters'])) {
             EE_Register_Personal_Data_Eraser::register(
                 $addon_name,
-                self::$_settings[ $addon_name ]['personal_data_exporters']
+                self::$_settings[$addon_name]['personal_data_exporters']
             );
         }
     }
@@ -997,10 +997,10 @@ 
      */
     private static function registerPersonalDataErasers($addon_name)
     {
-        if (! empty(self::$_settings[ $addon_name ]['personal_data_erasers'])) {
+        if ( ! empty(self::$_settings[$addon_name]['personal_data_erasers'])) {
             EE_Register_Personal_Data_Eraser::register(
                 $addon_name,
-                self::$_settings[ $addon_name ]['personal_data_erasers']
+                self::$_settings[$addon_name]['personal_data_erasers']
             );
         }
     }
@@ -1021,7 +1021,7 @@ 
     {
         $loader = EventEspresso\core\services\loaders\LoaderFactory::getLoader();
         $addon = $loader->getShared(
-            self::$_settings[ $addon_name ]['class_name'],
+            self::$_settings[$addon_name]['class_name'],
             array('EE_Registry::create(addon)' => true)
         );
         // setter inject dep map if required
@@ -1033,19 +1033,19 @@ 
             && $addon->domain() === null
         ) {
             // using supplied Domain object
-            $domain = self::$_settings[ $addon_name ]['domain'] instanceof DomainInterface
-                ? self::$_settings[ $addon_name ]['domain']
+            $domain = self::$_settings[$addon_name]['domain'] instanceof DomainInterface
+                ? self::$_settings[$addon_name]['domain']
                 : null;
             // or construct one using Domain FQCN
-            if ($domain === null && self::$_settings[ $addon_name ]['domain_fqcn'] !== '') {
+            if ($domain === null && self::$_settings[$addon_name]['domain_fqcn'] !== '') {
                 $domain = $loader->getShared(
-                    self::$_settings[ $addon_name ]['domain_fqcn'],
+                    self::$_settings[$addon_name]['domain_fqcn'],
                     array(
                         new EventEspresso\core\domain\values\FilePath(
-                            self::$_settings[ $addon_name ]['main_file_path']
+                            self::$_settings[$addon_name]['main_file_path']
                         ),
                         EventEspresso\core\domain\values\Version::fromString(
-                            self::$_settings[ $addon_name ]['version']
+                            self::$_settings[$addon_name]['version']
                         ),
                     )
                 );
@@ -1055,28 +1055,28 @@ 
             }
         }
         $addon->set_name($addon_name);
-        $addon->set_plugin_slug(self::$_settings[ $addon_name ]['plugin_slug']);
-        $addon->set_plugin_basename(self::$_settings[ $addon_name ]['plugin_basename']);
-        $addon->set_main_plugin_file(self::$_settings[ $addon_name ]['main_file_path']);
-        $addon->set_plugin_action_slug(self::$_settings[ $addon_name ]['plugin_action_slug']);
-        $addon->set_plugins_page_row(self::$_settings[ $addon_name ]['plugins_page_row']);
-        $addon->set_version(self::$_settings[ $addon_name ]['version']);
-        $addon->set_min_core_version(self::_effective_version(self::$_settings[ $addon_name ]['min_core_version']));
-        $addon->set_config_section(self::$_settings[ $addon_name ]['config_section']);
-        $addon->set_config_class(self::$_settings[ $addon_name ]['config_class']);
-        $addon->set_config_name(self::$_settings[ $addon_name ]['config_name']);
+        $addon->set_plugin_slug(self::$_settings[$addon_name]['plugin_slug']);
+        $addon->set_plugin_basename(self::$_settings[$addon_name]['plugin_basename']);
+        $addon->set_main_plugin_file(self::$_settings[$addon_name]['main_file_path']);
+        $addon->set_plugin_action_slug(self::$_settings[$addon_name]['plugin_action_slug']);
+        $addon->set_plugins_page_row(self::$_settings[$addon_name]['plugins_page_row']);
+        $addon->set_version(self::$_settings[$addon_name]['version']);
+        $addon->set_min_core_version(self::_effective_version(self::$_settings[$addon_name]['min_core_version']));
+        $addon->set_config_section(self::$_settings[$addon_name]['config_section']);
+        $addon->set_config_class(self::$_settings[$addon_name]['config_class']);
+        $addon->set_config_name(self::$_settings[$addon_name]['config_name']);
         // setup the add-on's pue_slug if we have one.
-        if (! empty(self::$_settings[ $addon_name ]['pue_options']['pue_plugin_slug'])) {
-            $addon->setPueSlug(self::$_settings[ $addon_name ]['pue_options']['pue_plugin_slug']);
+        if ( ! empty(self::$_settings[$addon_name]['pue_options']['pue_plugin_slug'])) {
+            $addon->setPueSlug(self::$_settings[$addon_name]['pue_options']['pue_plugin_slug']);
         }
         // unfortunately this can't be hooked in upon construction, because we don't have
         // the plugin mainfile's path upon construction.
         register_deactivation_hook($addon->get_main_plugin_file(), array($addon, 'deactivation'));
         // call any additional admin_callback functions during load_admin_controller hook
-        if (! empty(self::$_settings[ $addon_name ]['admin_callback'])) {
+        if ( ! empty(self::$_settings[$addon_name]['admin_callback'])) {
             add_action(
                 'AHEE__EE_System__load_controllers__load_admin_controllers',
-                array($addon, self::$_settings[ $addon_name ]['admin_callback'])
+                array($addon, self::$_settings[$addon_name]['admin_callback'])
             );
         }
         return $addon;
@@ -1094,11 +1094,11 @@ 
     public static function load_pue_update()
     {
         // load PUE client
-        require_once EE_THIRD_PARTY . 'pue/pue-client.php';
+        require_once EE_THIRD_PARTY.'pue/pue-client.php';
         $license_server = defined('PUE_UPDATES_ENDPOINT') ? PUE_UPDATES_ENDPOINT : 'https://eventespresso.com';
         // cycle thru settings
         foreach (self::$_settings as $settings) {
-            if (! empty($settings['pue_options'])) {
+            if ( ! empty($settings['pue_options'])) {
                 // initiate the class and start the plugin update engine!
                 new PluginUpdateEngineChecker(
                     // host file URL
@@ -1106,7 +1106,7 @@ 
                     // plugin slug(s)
                     array(
                         'premium'    => array('p' => $settings['pue_options']['pue_plugin_slug']),
-                        'prerelease' => array('beta' => $settings['pue_options']['pue_plugin_slug'] . '-pr'),
+                        'prerelease' => array('beta' => $settings['pue_options']['pue_plugin_slug'].'-pr'),
                     ),
                     // options
                     array(
@@ -1135,7 +1135,7 @@ 
     public static function register_message_types()
     {
         foreach (self::$_settings as $addon_name => $settings) {
-            if (! empty($settings['message_types'])) {
+            if ( ! empty($settings['message_types'])) {
                 foreach ((array) $settings['message_types'] as $message_type => $message_type_settings) {
                     EE_Register_Message_Type::register($message_type, $message_type_settings);
                 }
@@ -1157,70 +1157,70 @@ 
      */
     public static function deregister($addon_name = null)
     {
-        if (isset(self::$_settings[ $addon_name ]['class_name'])) {
+        if (isset(self::$_settings[$addon_name]['class_name'])) {
             try {
                 do_action('AHEE__EE_Register_Addon__deregister__before', $addon_name);
-                $class_name = self::$_settings[ $addon_name ]['class_name'];
-                if (! empty(self::$_settings[ $addon_name ]['dms_paths'])) {
+                $class_name = self::$_settings[$addon_name]['class_name'];
+                if ( ! empty(self::$_settings[$addon_name]['dms_paths'])) {
                     // setup DMS
                     EE_Register_Data_Migration_Scripts::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['admin_path'])) {
+                if ( ! empty(self::$_settings[$addon_name]['admin_path'])) {
                     // register admin page
                     EE_Register_Admin_Page::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['module_paths'])) {
+                if ( ! empty(self::$_settings[$addon_name]['module_paths'])) {
                     // add to list of modules to be registered
                     EE_Register_Module::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['shortcode_paths'])
-                    || ! empty(self::$_settings[ $addon_name ]['shortcode_fqcns'])
+                if ( ! empty(self::$_settings[$addon_name]['shortcode_paths'])
+                    || ! empty(self::$_settings[$addon_name]['shortcode_fqcns'])
                 ) {
                     // add to list of shortcodes to be registered
                     EE_Register_Shortcode::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['config_class'])) {
+                if ( ! empty(self::$_settings[$addon_name]['config_class'])) {
                     // if config_class present let's register config.
-                    EE_Register_Config::deregister(self::$_settings[ $addon_name ]['config_class']);
+                    EE_Register_Config::deregister(self::$_settings[$addon_name]['config_class']);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['widget_paths'])) {
+                if ( ! empty(self::$_settings[$addon_name]['widget_paths'])) {
                     // add to list of widgets to be registered
                     EE_Register_Widget::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['model_paths'])
-                    || ! empty(self::$_settings[ $addon_name ]['class_paths'])
+                if ( ! empty(self::$_settings[$addon_name]['model_paths'])
+                    || ! empty(self::$_settings[$addon_name]['class_paths'])
                 ) {
                     // add to list of shortcodes to be registered
                     EE_Register_Model::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['model_extension_paths'])
-                    || ! empty(self::$_settings[ $addon_name ]['class_extension_paths'])
+                if ( ! empty(self::$_settings[$addon_name]['model_extension_paths'])
+                    || ! empty(self::$_settings[$addon_name]['class_extension_paths'])
                 ) {
                     // add to list of shortcodes to be registered
                     EE_Register_Model_Extensions::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['message_types'])) {
-                    foreach ((array) self::$_settings[ $addon_name ]['message_types'] as $message_type => $message_type_settings) {
+                if ( ! empty(self::$_settings[$addon_name]['message_types'])) {
+                    foreach ((array) self::$_settings[$addon_name]['message_types'] as $message_type => $message_type_settings) {
                         EE_Register_Message_Type::deregister($message_type);
                     }
                 }
                 // deregister capabilities for addon
-                if (! empty(self::$_settings[ $addon_name ]['capabilities'])
-                    || ! empty(self::$_settings[ $addon_name ]['capability_maps'])
+                if ( ! empty(self::$_settings[$addon_name]['capabilities'])
+                    || ! empty(self::$_settings[$addon_name]['capability_maps'])
                 ) {
                     EE_Register_Capabilities::deregister($addon_name);
                 }
                 // deregister custom_post_types for addon
-                if (! empty(self::$_settings[ $addon_name ]['custom_post_types'])) {
+                if ( ! empty(self::$_settings[$addon_name]['custom_post_types'])) {
                     EE_Register_CPT::deregister($addon_name);
                 }
-                if (! empty(self::$_settings[ $addon_name ]['payment_method_paths'])) {
+                if ( ! empty(self::$_settings[$addon_name]['payment_method_paths'])) {
                     EE_Register_Payment_Method::deregister($addon_name);
                 }
                 $addon = EE_Registry::instance()->getAddon($class_name);
                 if ($addon instanceof EE_Addon) {
                     remove_action(
-                        'deactivate_' . $addon->get_main_plugin_file_basename(),
+                        'deactivate_'.$addon->get_main_plugin_file_basename(),
                         array($addon, 'deactivation')
                     );
                     remove_action(
@@ -1243,7 +1243,7 @@ 
             } catch (Exception $e) {
                 new ExceptionLogger($e);
             }
-            unset(self::$_settings[ $addon_name ]);
+            unset(self::$_settings[$addon_name]);
             do_action('AHEE__EE_Register_Addon__deregister__after', $addon_name);
         }
     }