eventespresso / event-espresso-core

core/helpers/EEH_Activation.helper.php

Spacing +129 added lines, -129 removed lines

@@ -61,8 +61,8 @@ 
 	 * @return \EventEspresso\core\services\database\TableAnalysis
 	 */
 	public static function getTableAnalysis() {
-		if ( ! self::$table_analysis instanceof \EventEspresso\core\services\database\TableAnalysis ) {
-			self::$table_analysis = EE_Registry::instance()->create( 'TableAnalysis', array(), true );
+		if ( ! self::$table_analysis instanceof \EventEspresso\core\services\database\TableAnalysis) {
+			self::$table_analysis = EE_Registry::instance()->create('TableAnalysis', array(), true);
 		}
 		return self::$table_analysis;
 	}
@@ -73,8 +73,8 @@ 
 	 * @return \EventEspresso\core\services\database\TableManager
 	 */
 	public static function getTableManager() {
-		if ( ! self::$table_manager instanceof \EventEspresso\core\services\database\TableManager ) {
-			self::$table_manager = EE_Registry::instance()->create( 'TableManager', array(), true );
+		if ( ! self::$table_manager instanceof \EventEspresso\core\services\database\TableManager) {
+			self::$table_manager = EE_Registry::instance()->create('TableManager', array(), true);
 		}
 		return self::$table_manager;
 	}
@@ -89,8 +89,8 @@ 
 	 * @param $table_name
 	 * @return string
 	 */
-	public static function ensure_table_name_has_prefix( $table_name ) {
-		return \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix( $table_name );
+	public static function ensure_table_name_has_prefix($table_name) {
+		return \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix($table_name);
 	}
 
 
@@ -118,7 +118,7 @@ 
 	 * @return boolean success, whether the database and folders are setup properly
 	 * @throws \EE_Error
 	 */
-	public static function initialize_db_and_folders(){
+	public static function initialize_db_and_folders() {
 		$good_filesystem = EEH_Activation::create_upload_directories();
 		$good_db = EEH_Activation::create_database_tables();
 		return $good_filesystem && $good_db;
@@ -134,9 +134,9 @@ 
 	 *
 	 * @throws \EE_Error
 	 */
-	public static function initialize_db_content(){
+	public static function initialize_db_content() {
 		//let's avoid doing all this logic repeatedly, especially when addons are requesting it
-		if( EEH_Activation::$_initialized_db_content_already_in_this_request ) {
+		if (EEH_Activation::$_initialized_db_content_already_in_this_request) {
 			return;
 		}
 		EEH_Activation::$_initialized_db_content_already_in_this_request = true;
@@ -153,9 +153,9 @@ 
 		EEH_Activation::remove_cron_tasks();
 		EEH_Activation::create_cron_tasks();
 		// remove all TXN locks since that is being done via extra meta now
-		delete_option( 'ee_locked_transactions' );
+		delete_option('ee_locked_transactions');
 		//also, check for CAF default db content
-		do_action( 'AHEE__EEH_Activation__initialize_db_content' );
+		do_action('AHEE__EEH_Activation__initialize_db_content');
 		//also: EEM_Gateways::load_all_gateways() outputs a lot of success messages
 		//which users really won't care about on initial activation
 		EE_Error::overwrite_success();
@@ -175,7 +175,7 @@ 
 	 * @return array
 	 * @throws \EE_Error
 	 */
-	public static function get_cron_tasks( $which_to_include ) {
+	public static function get_cron_tasks($which_to_include) {
 		$cron_tasks = apply_filters(
 			'FHEE__EEH_Activation__get_cron_tasks',
 			array(
@@ -184,16 +184,16 @@ 
 				'AHEE__EE_Cron_Tasks__update_transaction_with_payment' => EEH_Activation::cron_task_no_longer_in_use, //there may have been a bug which prevented from these cron tasks from getting unscheduled, so we might want to remove these for a few updates
 			)
 		);
-		if ( $which_to_include === 'old' ) {
+		if ($which_to_include === 'old') {
 			$cron_tasks = array_filter(
 				$cron_tasks,
-				function ( $value ) {
+				function($value) {
 					return $value === EEH_Activation::cron_task_no_longer_in_use;
 				}
 			);
-		} elseif ( $which_to_include === 'current' ) {
-			$cron_tasks = array_filter( $cron_tasks );
-		} elseif ( WP_DEBUG && $which_to_include !== 'all' ) {
+		} elseif ($which_to_include === 'current') {
+			$cron_tasks = array_filter($cron_tasks);
+		} elseif (WP_DEBUG && $which_to_include !== 'all') {
 			throw new EE_Error(
 				sprintf(
 					__(
@@ -216,9 +216,9 @@ 
 	 */
 	public static function create_cron_tasks() {
 
-		foreach( EEH_Activation::get_cron_tasks( 'current' ) as $hook_name => $frequency ) {
-			if( ! wp_next_scheduled( $hook_name ) ) {
-				wp_schedule_event( time(), $frequency, $hook_name );
+		foreach (EEH_Activation::get_cron_tasks('current') as $hook_name => $frequency) {
+			if ( ! wp_next_scheduled($hook_name)) {
+				wp_schedule_event(time(), $frequency, $hook_name);
 			}
 		}
 
@@ -232,10 +232,10 @@ 
 	 * @param boolean $remove_all whether to only remove the old ones, or remove absolutely ALL the EE ones
 	 * @throws \EE_Error
 	 */
-	public static function remove_cron_tasks( $remove_all = true ) {
+	public static function remove_cron_tasks($remove_all = true) {
 		$cron_tasks_to_remove = $remove_all ? 'all' : 'old';
 		$crons = _get_cron_array();
-		$crons = is_array( $crons ) ? $crons : array();
+		$crons = is_array($crons) ? $crons : array();
 		/* reminder of what $crons look like:
 		 * Top-level keys are timestamps, and their values are arrays.
 		 * The 2nd level arrays have keys with each of the cron task hook names to run at that time
@@ -253,23 +253,23 @@ 
 		 *					...
 		 *      ...
 		 */
-		$ee_cron_tasks_to_remove = EEH_Activation::get_cron_tasks( $cron_tasks_to_remove );
-		foreach ( $crons as $timestamp => $hooks_to_fire_at_time ) {
-			if ( is_array( $hooks_to_fire_at_time ) ) {
-				foreach ( $hooks_to_fire_at_time as $hook_name => $hook_actions ) {
-					if ( isset( $ee_cron_tasks_to_remove[ $hook_name ] )
-					     && is_array( $ee_cron_tasks_to_remove[ $hook_name ] )
+		$ee_cron_tasks_to_remove = EEH_Activation::get_cron_tasks($cron_tasks_to_remove);
+		foreach ($crons as $timestamp => $hooks_to_fire_at_time) {
+			if (is_array($hooks_to_fire_at_time)) {
+				foreach ($hooks_to_fire_at_time as $hook_name => $hook_actions) {
+					if (isset($ee_cron_tasks_to_remove[$hook_name])
+					     && is_array($ee_cron_tasks_to_remove[$hook_name])
 					) {
-						unset( $crons[ $timestamp ][ $hook_name ] );
+						unset($crons[$timestamp][$hook_name]);
 					}
 				}
 				//also take care of any empty cron timestamps.
-				if ( empty( $hooks_to_fire_at_time ) ) {
-					unset( $crons[ $timestamp ] );
+				if (empty($hooks_to_fire_at_time)) {
+					unset($crons[$timestamp]);
 				}
 			}
 		}
-		_set_cron_array( $crons );
+		_set_cron_array($crons);
 	}
 
 
@@ -284,7 +284,7 @@ 
 	 */
 	public static function CPT_initialization() {
 		// register Custom Post Types
-		EE_Registry::instance()->load_core( 'Register_CPTs' );
+		EE_Registry::instance()->load_core('Register_CPTs');
 		flush_rewrite_rules();
 	}
 
@@ -320,28 +320,28 @@ 
 	 */
 	public static function load_calendar_config() {
 		// grab array of all plugin folders and loop thru it
-		$plugins = glob( WP_PLUGIN_DIR . DS . '*', GLOB_ONLYDIR );
-		if ( empty( $plugins ) ) {
+		$plugins = glob(WP_PLUGIN_DIR.DS.'*', GLOB_ONLYDIR);
+		if (empty($plugins)) {
 			return;
 		}
-		foreach ( $plugins as $plugin_path ) {
+		foreach ($plugins as $plugin_path) {
 			// grab plugin folder name from path
-			$plugin = basename( $plugin_path );
+			$plugin = basename($plugin_path);
 			// drill down to Espresso plugins
 			// then to calendar related plugins
 			if (
-				strpos( $plugin, 'espresso' ) !== FALSE
-				|| strpos( $plugin, 'Espresso' ) !== FALSE
-				|| strpos( $plugin, 'ee4' ) !== FALSE
-				|| strpos( $plugin, 'EE4' ) !== FALSE
-				|| strpos( $plugin, 'calendar' ) !== false
+				strpos($plugin, 'espresso') !== FALSE
+				|| strpos($plugin, 'Espresso') !== FALSE
+				|| strpos($plugin, 'ee4') !== FALSE
+				|| strpos($plugin, 'EE4') !== FALSE
+				|| strpos($plugin, 'calendar') !== false
 			) {
 				// this is what we are looking for
-				$calendar_config = $plugin_path . DS . 'EE_Calendar_Config.php';
+				$calendar_config = $plugin_path.DS.'EE_Calendar_Config.php';
 				// does it exist in this folder ?
-				if ( is_readable( $calendar_config )) {
+				if (is_readable($calendar_config)) {
 					// YEAH! let's load it
-					require_once( $calendar_config );
+					require_once($calendar_config);
 				}
 			}
 		}
@@ -389,8 +389,8 @@ 
 	 */
 	public static function deactivate_event_espresso() {
 		// check permissions
-		if ( current_user_can( 'activate_plugins' )) {
-			deactivate_plugins( EE_PLUGIN_BASENAME, TRUE );
+		if (current_user_can('activate_plugins')) {
+			deactivate_plugins(EE_PLUGIN_BASENAME, TRUE);
 		}
 	}
 
@@ -513,7 +513,7 @@ 
     public static function get_page_by_ee_shortcode($ee_shortcode)
     {
         global $wpdb;
-        $shortcode_and_opening_bracket = '[' . $ee_shortcode;
+        $shortcode_and_opening_bracket = '['.$ee_shortcode;
         $post_id = $wpdb->get_var("SELECT ID FROM {$wpdb->posts} WHERE post_content LIKE '%$shortcode_and_opening_bracket%' LIMIT 1");
         if ($post_id) {
             return get_post($post_id);
@@ -533,32 +533,32 @@ 
 	 * @param array $critical_page
 	 * @return array
 	 */
-	public static function create_critical_page( $critical_page ) {
+	public static function create_critical_page($critical_page) {
 
 		$post_args = array(
 			'post_title' => $critical_page['name'],
 			'post_status' => 'publish',
 			'post_type' => 'page',
 			'comment_status' => 'closed',
-			'post_content' => '[' . $critical_page['code'] . ']'
+			'post_content' => '['.$critical_page['code'].']'
 		);
 
-		$post_id = wp_insert_post( $post_args );
-		if ( ! $post_id ) {
+		$post_id = wp_insert_post($post_args);
+		if ( ! $post_id) {
 			$msg = sprintf(
-				__( 'The Event Espresso  critical page entitled "%s" could not be created.', 'event_espresso' ),
+				__('The Event Espresso  critical page entitled "%s" could not be created.', 'event_espresso'),
 				$critical_page['name']
 			);
-			EE_Error::add_error( $msg, __FILE__, __FUNCTION__, __LINE__ );
+			EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
 			return $critical_page;
 		}
 		// get newly created post's details
-		if ( ! $critical_page['post'] = get_post( $post_id )) {
+		if ( ! $critical_page['post'] = get_post($post_id)) {
 			$msg = sprintf(
-				__( 'The Event Espresso critical page entitled "%s" could not be retrieved.', 'event_espresso' ),
+				__('The Event Espresso critical page entitled "%s" could not be retrieved.', 'event_espresso'),
 				$critical_page['name']
 			);
-			EE_Error::add_error( $msg, __FILE__, __FUNCTION__, __LINE__ );
+			EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
 		}
 
 		return $critical_page;
@@ -633,15 +633,15 @@ 
         $pre_filtered_id = apply_filters('FHEE__EEH_Activation__get_default_creator_id__pre_filtered_id', false,
             $role_to_check);
         if ($pre_filtered_id !== false) {
-            return (int)$pre_filtered_id;
+            return (int) $pre_filtered_id;
         }
         $capabilities_key = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('capabilities');
         $query = $wpdb->prepare("SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '$capabilities_key' AND meta_value LIKE %s ORDER BY user_id ASC LIMIT 0,1",
-            '%' . $role_to_check . '%');
+            '%'.$role_to_check.'%');
         $user_id = $wpdb->get_var($query);
         $user_id = apply_filters('FHEE__EEH_Activation_Helper__get_default_creator_id__user_id', $user_id);
-        if ($user_id && (int)$user_id) {
-            self::$_default_creator_id = (int)$user_id;
+        if ($user_id && (int) $user_id) {
+            self::$_default_creator_id = (int) $user_id;
             return self::$_default_creator_id;
         } else {
             return null;
@@ -676,7 +676,7 @@ 
         }
         do_action('AHEE_log', __FILE__, __FUNCTION__, '');
         if ( ! function_exists('dbDelta')) {
-            require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
+            require_once(ABSPATH.'wp-admin/includes/upgrade.php');
         }
         $tableAnalysis = \EEH_Activation::getTableAnalysis();
         $wp_table_name = $tableAnalysis->ensureTableNameHasPrefix($table_name);
@@ -739,8 +739,8 @@ 
 	 * @param string $table_name, without prefixed $wpdb->prefix
 	 * @return array of database column names
 	 */
-	public static function get_fields_on_table( $table_name = NULL ) {
-		return \EEH_Activation::getTableManager()->getTableColumns( $table_name );
+	public static function get_fields_on_table($table_name = NULL) {
+		return \EEH_Activation::getTableManager()->getTableColumns($table_name);
 	}
 
 
@@ -754,8 +754,8 @@ 
 	 * @param string $table_name
 	 * @return bool
 	 */
-	public static function db_table_is_empty( $table_name ) {
-		return \EEH_Activation::getTableAnalysis()->tableIsEmpty( $table_name );
+	public static function db_table_is_empty($table_name) {
+		return \EEH_Activation::getTableAnalysis()->tableIsEmpty($table_name);
 }
 
 
@@ -768,9 +768,9 @@ 
 	 * @param string $table_name
 	 * @return bool | int
 	 */
-	public static function delete_db_table_if_empty( $table_name ) {
-		if ( \EEH_Activation::getTableAnalysis()->tableIsEmpty( $table_name ) ) {
-			return \EEH_Activation::getTableManager()->dropTable( $table_name );
+	public static function delete_db_table_if_empty($table_name) {
+		if (\EEH_Activation::getTableAnalysis()->tableIsEmpty($table_name)) {
+			return \EEH_Activation::getTableManager()->dropTable($table_name);
 		}
 		return false;
 	}
@@ -786,8 +786,8 @@ 
 	 * @param string $table_name
 	 * @return bool | int
 	 */
-	public static function delete_unused_db_table( $table_name ) {
-		return \EEH_Activation::getTableManager()->dropTable( $table_name );
+	public static function delete_unused_db_table($table_name) {
+		return \EEH_Activation::getTableManager()->dropTable($table_name);
 	}
 
 
@@ -802,8 +802,8 @@ 
 	 * @param string $index_name
 	 * @return bool | int
 	 */
-	public static function drop_index( $table_name, $index_name ) {
-		return \EEH_Activation::getTableManager()->dropIndex( $table_name, $index_name );
+	public static function drop_index($table_name, $index_name) {
+		return \EEH_Activation::getTableManager()->dropIndex($table_name, $index_name);
 	}
 
 
@@ -878,7 +878,7 @@ 
                     case 1:
                         $QSG_values = array(
                             'QSG_name'            => __('Personal Information', 'event_espresso'),
-                            'QSG_identifier'      => 'personal-information-' . time(),
+                            'QSG_identifier'      => 'personal-information-'.time(),
                             'QSG_desc'            => '',
                             'QSG_order'           => 1,
                             'QSG_show_group_name' => 1,
@@ -890,7 +890,7 @@ 
                     case 2:
                         $QSG_values = array(
                             'QSG_name'            => __('Address Information', 'event_espresso'),
-                            'QSG_identifier'      => 'address-information-' . time(),
+                            'QSG_identifier'      => 'address-information-'.time(),
                             'QSG_desc'            => '',
                             'QSG_order'           => 2,
                             'QSG_show_group_name' => 1,
@@ -1155,11 +1155,11 @@ 
 	 *
 	 * @throws \EE_Error
 	 */
-	public static function insert_default_payment_methods(){
-		if( ! EEM_Payment_Method::instance()->count_active( EEM_Payment_Method::scope_cart ) ){
-			EE_Registry::instance()->load_lib( 'Payment_Method_Manager' );
-			EE_Payment_Method_Manager::instance()->activate_a_payment_method_of_type( 'Invoice' );
-		}else{
+	public static function insert_default_payment_methods() {
+		if ( ! EEM_Payment_Method::instance()->count_active(EEM_Payment_Method::scope_cart)) {
+			EE_Registry::instance()->load_lib('Payment_Method_Manager');
+			EE_Payment_Method_Manager::instance()->activate_a_payment_method_of_type('Invoice');
+		} else {
 			EEM_Payment_Method::instance()->verify_button_urls();
 		}
 	}
@@ -1175,7 +1175,7 @@ 
 
 		global $wpdb;
 
-		if ( \EEH_Activation::getTableAnalysis()->tableExists( EEM_Status::instance()->table() ) ) {
+		if (\EEH_Activation::getTableAnalysis()->tableExists(EEM_Status::instance()->table())) {
 
 			$table_name = EEM_Status::instance()->table();
 
@@ -1251,33 +1251,33 @@ 
 		$folders = array(
 				EVENT_ESPRESSO_TEMPLATE_DIR,
 				EVENT_ESPRESSO_GATEWAY_DIR,
-				EVENT_ESPRESSO_UPLOAD_DIR . 'logs/',
-				EVENT_ESPRESSO_UPLOAD_DIR . 'css/',
-				EVENT_ESPRESSO_UPLOAD_DIR . 'tickets/'
+				EVENT_ESPRESSO_UPLOAD_DIR.'logs/',
+				EVENT_ESPRESSO_UPLOAD_DIR.'css/',
+				EVENT_ESPRESSO_UPLOAD_DIR.'tickets/'
 		);
-		foreach ( $folders as $folder ) {
+		foreach ($folders as $folder) {
 			try {
-				EEH_File::ensure_folder_exists_and_is_writable( $folder );
-				@ chmod( $folder, 0755 );
-			} catch( EE_Error $e ){
+				EEH_File::ensure_folder_exists_and_is_writable($folder);
+				@ chmod($folder, 0755);
+			} catch (EE_Error $e) {
 				EE_Error::add_error(
 					sprintf(
-						__(  'Could not create the folder at "%1$s" because: %2$s', 'event_espresso' ),
+						__('Could not create the folder at "%1$s" because: %2$s', 'event_espresso'),
 						$folder,
-						'<br />' . $e->getMessage()
+						'<br />'.$e->getMessage()
 					),
 					__FILE__, __FUNCTION__, __LINE__
 				);
 				//indicate we'll need to fix this later
-				update_option( EEH_Activation::upload_directories_incomplete_option_name, true );
+				update_option(EEH_Activation::upload_directories_incomplete_option_name, true);
 				return FALSE;
 			}
 		}
 		//just add the .htaccess file to the logs directory to begin with. Even if logging
 		//is disabled, there might be activation errors recorded in there
-		EEH_File::add_htaccess_deny_from_all( EVENT_ESPRESSO_UPLOAD_DIR . 'logs/' );
+		EEH_File::add_htaccess_deny_from_all(EVENT_ESPRESSO_UPLOAD_DIR.'logs/');
 		//remember EE's folders are all good
-		delete_option( EEH_Activation::upload_directories_incomplete_option_name );
+		delete_option(EEH_Activation::upload_directories_incomplete_option_name);
 		return TRUE;
 	}
 
@@ -1290,7 +1290,7 @@ 
 	 * @return boolean
 	 */
 	public static function upload_directories_incomplete() {
-		return get_option( EEH_Activation::upload_directories_incomplete_option_name, false );
+		return get_option(EEH_Activation::upload_directories_incomplete_option_name, false);
 	}
 
 
@@ -1307,7 +1307,7 @@ 
 	 */
 	public static function generate_default_message_templates() {
 		/** @type EE_Message_Resource_Manager $message_resource_manager */
-		$message_resource_manager = EE_Registry::instance()->load_lib( 'Message_Resource_Manager' );
+		$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
 		/*
 		 * This first method is taking care of ensuring any default messengers
 		 * that should be made active and have templates generated are done.
@@ -1457,18 +1457,18 @@ 
 		$has_activated = $message_resource_manager->get_has_activated_messengers_option();
 
 		$messengers_to_generate = array();
-		foreach ( $installed_messengers as $installed_messenger ) {
+		foreach ($installed_messengers as $installed_messenger) {
 			//if installed messenger is a messenger that should be activated on install
 			//and is not already active
 			//and has never been activated
 			if (
 				! $installed_messenger->activate_on_install
-				|| isset( $active_messengers[ $installed_messenger->name ] )
-				|| isset( $has_activated[ $installed_messenger->name ] )
+				|| isset($active_messengers[$installed_messenger->name])
+				|| isset($has_activated[$installed_messenger->name])
 			) {
 				continue;
 			}
-			$messengers_to_generate[ $installed_messenger->name ] = $installed_messenger;
+			$messengers_to_generate[$installed_messenger->name] = $installed_messenger;
 		}
 		return $messengers_to_generate;
 	}
@@ -1493,9 +1493,9 @@ 
 	 */
 	public static function validate_messages_system() {
 		/** @type EE_Message_Resource_Manager $message_resource_manager */
-		$message_resource_manager = EE_Registry::instance()->load_lib( 'Message_Resource_Manager' );
+		$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
 		$message_resource_manager->validate_active_message_types_are_installed();
-		do_action( 'AHEE__EEH_Activation__validate_messages_system' );
+		do_action('AHEE__EEH_Activation__validate_messages_system');
 	}
 
 
@@ -1508,12 +1508,12 @@ 
 	 * 	@static
 	 * 	@return void
 	 */
-	public static function create_no_ticket_prices_array(){
+	public static function create_no_ticket_prices_array() {
 		// this creates an array for tracking events that have no active ticket prices created
 		// this allows us to warn admins of the situation so that it can be corrected
-		$espresso_no_ticket_prices = get_option( 'ee_no_ticket_prices', FALSE );
-		if ( ! $espresso_no_ticket_prices ) {
-			add_option( 'ee_no_ticket_prices', array(), '', FALSE );
+		$espresso_no_ticket_prices = get_option('ee_no_ticket_prices', FALSE);
+		if ( ! $espresso_no_ticket_prices) {
+			add_option('ee_no_ticket_prices', array(), '', FALSE);
 		}
 	}
 
@@ -1538,24 +1538,24 @@ 
 	 * @global wpdb $wpdb
 	 * @throws \EE_Error
 	 */
-	public static function delete_all_espresso_cpt_data(){
+	public static function delete_all_espresso_cpt_data() {
 		global $wpdb;
 		//get all the CPT post_types
 		$ee_post_types = array();
-		foreach(EE_Registry::instance()->non_abstract_db_models as $model_name){
-			if ( method_exists( $model_name, 'instance' )) {
-				$model_obj = call_user_func( array( $model_name, 'instance' ));
-				if ( $model_obj instanceof EEM_CPT_Base ) {
-					$ee_post_types[] = $wpdb->prepare("%s",$model_obj->post_type());
+		foreach (EE_Registry::instance()->non_abstract_db_models as $model_name) {
+			if (method_exists($model_name, 'instance')) {
+				$model_obj = call_user_func(array($model_name, 'instance'));
+				if ($model_obj instanceof EEM_CPT_Base) {
+					$ee_post_types[] = $wpdb->prepare("%s", $model_obj->post_type());
 				}
 			}
 		}
 		//get all our CPTs
-		$query = "SELECT ID FROM {$wpdb->posts} WHERE post_type IN (".implode(",",$ee_post_types).")";
+		$query = "SELECT ID FROM {$wpdb->posts} WHERE post_type IN (".implode(",", $ee_post_types).")";
 		$cpt_ids = $wpdb->get_col($query);
 		//delete each post meta and term relations too
-		foreach($cpt_ids as $post_id){
-			wp_delete_post($post_id,true);
+		foreach ($cpt_ids as $post_id) {
+			wp_delete_post($post_id, true);
 		}
 	}
 
@@ -1567,12 +1567,12 @@ 
 	public static function drop_espresso_tables() {
 		$tables = array();
 		// load registry
-		foreach( EE_Registry::instance()->non_abstract_db_models as $model_name ){
-			if ( method_exists( $model_name, 'instance' )) {
-				$model_obj = call_user_func( array( $model_name, 'instance' ));
-				if ( $model_obj instanceof EEM_Base ) {
-					foreach ( $model_obj->get_tables() as $table ) {
-						if ( strpos( $table->get_table_name(), 'esp_' )
+		foreach (EE_Registry::instance()->non_abstract_db_models as $model_name) {
+			if (method_exists($model_name, 'instance')) {
+				$model_obj = call_user_func(array($model_name, 'instance'));
+				if ($model_obj instanceof EEM_Base) {
+					foreach ($model_obj->get_tables() as $table) {
+						if (strpos($table->get_table_name(), 'esp_')
 							&&
 							(
 								is_main_site()//main site? nuke them all
@@ -1595,10 +1595,10 @@ 
 			'esp_promotion_rule',
 			'esp_rule'
 		);
-		foreach( $tables_without_models as $table ){
+		foreach ($tables_without_models as $table) {
 			$tables[] = $table;
 		}
-		return \EEH_Activation::getTableManager()->dropTables( $tables );
+		return \EEH_Activation::getTableManager()->dropTables($tables);
 	}
 
 
@@ -1690,7 +1690,7 @@ 
         if ($remove_all && $espresso_db_update = get_option('espresso_db_update')) {
             $db_update_sans_ee4 = array();
             foreach ($espresso_db_update as $version => $times_activated) {
-                if ((string)$version[0] === '3') {//if its NON EE4
+                if ((string) $version[0] === '3') {//if its NON EE4
                     $db_update_sans_ee4[$version] = $times_activated;
                 }
             }
@@ -1715,10 +1715,10 @@ 
 	 */
 	public static function last_wpdb_error_code() {
 		global $wpdb;
-		if( $wpdb->use_mysqli ) {
-			return mysqli_errno( $wpdb->dbh );
+		if ($wpdb->use_mysqli) {
+			return mysqli_errno($wpdb->dbh);
 		} else {
-			return mysql_errno( $wpdb->dbh );
+			return mysql_errno($wpdb->dbh);
 		}
 	}
 
@@ -1729,14 +1729,14 @@ 
 	 * @param string $table_name with or without $wpdb->prefix
 	 * @return boolean
 	 */
-	public static function table_exists( $table_name ){
-		return \EEH_Activation::getTableAnalysis()->tableExists( $table_name );
+	public static function table_exists($table_name) {
+		return \EEH_Activation::getTableAnalysis()->tableExists($table_name);
 	}
 
 	/**
 	 * Resets the cache on EEH_Activation
 	 */
-	public static function reset(){
+	public static function reset() {
 		self::$_default_creator_id = NULL;
 		self::$_initialized_db_content_already_in_this_request = false;
 	}

Indentation +917 added lines, -917 removed lines

@@ -1,5 +1,5 @@ 
 <?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -14,36 +14,36 @@ 
 class EEH_Activation
 {
 
-    /**
-     * constant used to indicate a cron task is no longer in use
-     */
-    const cron_task_no_longer_in_use = 'no_longer_in_use';
-
-    /**
-     * option name that will indicate whether or not we still
-     * need to create EE's folders in the uploads directory
-     * (because if EE was installed without file system access,
-     * we need to request credentials before we can create them)
-     */
-    const upload_directories_incomplete_option_name = 'ee_upload_directories_incomplete';
-
-    /**
-     * WP_User->ID
-     *
-     * @var int
-     */
-    private static $_default_creator_id;
-
-    /**
-     * indicates whether or not we've already verified core's default data during this request,
-     * because after migrations are done, any addons activated while in maintenance mode
-     * will want to setup their own default data, and they might hook into core's default data
-     * and trigger core to setup its default data. In which case they might all ask for core to init its default data.
-     * This prevents doing that for EVERY single addon.
-     *
-     * @var boolean
-     */
-    protected static $_initialized_db_content_already_in_this_request = false;
+	/**
+	 * constant used to indicate a cron task is no longer in use
+	 */
+	const cron_task_no_longer_in_use = 'no_longer_in_use';
+
+	/**
+	 * option name that will indicate whether or not we still
+	 * need to create EE's folders in the uploads directory
+	 * (because if EE was installed without file system access,
+	 * we need to request credentials before we can create them)
+	 */
+	const upload_directories_incomplete_option_name = 'ee_upload_directories_incomplete';
+
+	/**
+	 * WP_User->ID
+	 *
+	 * @var int
+	 */
+	private static $_default_creator_id;
+
+	/**
+	 * indicates whether or not we've already verified core's default data during this request,
+	 * because after migrations are done, any addons activated while in maintenance mode
+	 * will want to setup their own default data, and they might hook into core's default data
+	 * and trigger core to setup its default data. In which case they might all ask for core to init its default data.
+	 * This prevents doing that for EVERY single addon.
+	 *
+	 * @var boolean
+	 */
+	protected static $_initialized_db_content_already_in_this_request = false;
 
 	/**
 	 * @var \EventEspresso\core\services\database\TableAnalysis $table_analysis
@@ -258,7 +258,7 @@ 
 			if ( is_array( $hooks_to_fire_at_time ) ) {
 				foreach ( $hooks_to_fire_at_time as $hook_name => $hook_actions ) {
 					if ( isset( $ee_cron_tasks_to_remove[ $hook_name ] )
-					     && is_array( $ee_cron_tasks_to_remove[ $hook_name ] )
+						 && is_array( $ee_cron_tasks_to_remove[ $hook_name ] )
 					) {
 						unset( $crons[ $timestamp ][ $hook_name ] );
 					}
@@ -290,26 +290,26 @@ 
 
 
 
-    /**
-     *    reset_and_update_config
-     * The following code was moved over from EE_Config so that it will no longer run on every request.
-     * If there is old calendar config data saved, then it will get converted on activation.
-     * This was basically a DMS before we had DMS's, and will get removed after a few more versions.
-     *
-     * @access public
-     * @static
-     * @return void
-     */
-    public static function reset_and_update_config()
-    {
-        do_action('AHEE__EE_Config___load_core_config__start', array('EEH_Activation', 'load_calendar_config'));
-        add_filter('FHEE__EE_Config___load_core_config__config_settings',
-            array('EEH_Activation', 'migrate_old_config_data'), 10, 3);
-        //EE_Config::reset();
-        if ( ! EE_Config::logging_enabled()) {
-            delete_option(EE_Config::LOG_NAME);
-        }
-    }
+	/**
+	 *    reset_and_update_config
+	 * The following code was moved over from EE_Config so that it will no longer run on every request.
+	 * If there is old calendar config data saved, then it will get converted on activation.
+	 * This was basically a DMS before we had DMS's, and will get removed after a few more versions.
+	 *
+	 * @access public
+	 * @static
+	 * @return void
+	 */
+	public static function reset_and_update_config()
+	{
+		do_action('AHEE__EE_Config___load_core_config__start', array('EEH_Activation', 'load_calendar_config'));
+		add_filter('FHEE__EE_Config___load_core_config__config_settings',
+			array('EEH_Activation', 'migrate_old_config_data'), 10, 3);
+		//EE_Config::reset();
+		if ( ! EE_Config::logging_enabled()) {
+			delete_option(EE_Config::LOG_NAME);
+		}
+	}
 
 
 	/**
@@ -349,34 +349,34 @@ 
 
 
 
-    /**
-     *    _migrate_old_config_data
-     *
-     * @access    public
-     * @param array|stdClass $settings
-     * @param string         $config
-     * @param \EE_Config     $EE_Config
-     * @return \stdClass
-     */
-    public static function migrate_old_config_data($settings = array(), $config = '', EE_Config $EE_Config)
-    {
-        $convert_from_array = array('addons');
-        // in case old settings were saved as an array
-        if (is_array($settings) && in_array($config, $convert_from_array)) {
-            // convert existing settings to an object
-            $config_array = $settings;
-            $settings = new stdClass();
-            foreach ($config_array as $key => $value) {
-                if ($key === 'calendar' && class_exists('EE_Calendar_Config')) {
-                    $EE_Config->set_config('addons', 'EE_Calendar', 'EE_Calendar_Config', $value);
-                } else {
-                    $settings->{$key} = $value;
-                }
-            }
-            add_filter('FHEE__EE_Config___load_core_config__update_espresso_config', '__return_true');
-        }
-        return $settings;
-    }
+	/**
+	 *    _migrate_old_config_data
+	 *
+	 * @access    public
+	 * @param array|stdClass $settings
+	 * @param string         $config
+	 * @param \EE_Config     $EE_Config
+	 * @return \stdClass
+	 */
+	public static function migrate_old_config_data($settings = array(), $config = '', EE_Config $EE_Config)
+	{
+		$convert_from_array = array('addons');
+		// in case old settings were saved as an array
+		if (is_array($settings) && in_array($config, $convert_from_array)) {
+			// convert existing settings to an object
+			$config_array = $settings;
+			$settings = new stdClass();
+			foreach ($config_array as $key => $value) {
+				if ($key === 'calendar' && class_exists('EE_Calendar_Config')) {
+					$EE_Config->set_config('addons', 'EE_Calendar', 'EE_Calendar_Config', $value);
+				} else {
+					$settings->{$key} = $value;
+				}
+			}
+			add_filter('FHEE__EE_Config___load_core_config__update_espresso_config', '__return_true');
+		}
+		return $settings;
+	}
 
 
 
@@ -398,130 +398,130 @@ 
 
 
 
-    /**
-     * verify_default_pages_exist
-     *
-     * @access public
-     * @static
-     * @return void
-     */
-    public static function verify_default_pages_exist()
-    {
-        $critical_page_problem = false;
-        $critical_pages = array(
-            array(
-                'id'   => 'reg_page_id',
-                'name' => __('Registration Checkout', 'event_espresso'),
-                'post' => null,
-                'code' => 'ESPRESSO_CHECKOUT',
-            ),
-            array(
-                'id'   => 'txn_page_id',
-                'name' => __('Transactions', 'event_espresso'),
-                'post' => null,
-                'code' => 'ESPRESSO_TXN_PAGE',
-            ),
-            array(
-                'id'   => 'thank_you_page_id',
-                'name' => __('Thank You', 'event_espresso'),
-                'post' => null,
-                'code' => 'ESPRESSO_THANK_YOU',
-            ),
-            array(
-                'id'   => 'cancel_page_id',
-                'name' => __('Registration Cancelled', 'event_espresso'),
-                'post' => null,
-                'code' => 'ESPRESSO_CANCELLED',
-            ),
-        );
-        $EE_Core_Config = EE_Registry::instance()->CFG->core;
-        foreach ($critical_pages as $critical_page) {
-            // is critical page ID set in config ?
-            if ($EE_Core_Config->{$critical_page['id']} !== false) {
-                // attempt to find post by ID
-                $critical_page['post'] = get_post($EE_Core_Config->{$critical_page['id']});
-            }
-            // no dice?
-            if ($critical_page['post'] === null) {
-                // attempt to find post by title
-                $critical_page['post'] = self::get_page_by_ee_shortcode($critical_page['code']);
-                // still nothing?
-                if ($critical_page['post'] === null) {
-                    $critical_page = EEH_Activation::create_critical_page($critical_page);
-                    // REALLY? Still nothing ??!?!?
-                    if ($critical_page['post'] === null) {
-                        $msg = __('The Event Espresso critical page configuration settings could not be updated.',
-                            'event_espresso');
-                        EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-                        break;
-                    }
-                }
-            }
-            // track post_shortcodes
-            if ($critical_page['post']) {
-                EEH_Activation::_track_critical_page_post_shortcodes($critical_page);
-            }
-            // check that Post ID matches critical page ID in config
-            if (
-                isset($critical_page['post']->ID)
-                && $critical_page['post']->ID !== $EE_Core_Config->{$critical_page['id']}
-            ) {
-                //update Config with post ID
-                $EE_Core_Config->{$critical_page['id']} = $critical_page['post']->ID;
-                if ( ! EE_Config::instance()->update_espresso_config(false, false)) {
-                    $msg = __('The Event Espresso critical page configuration settings could not be updated.',
-                        'event_espresso');
-                    EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-                }
-            }
-            $critical_page_problem =
-                ! isset($critical_page['post']->post_status)
-                || $critical_page['post']->post_status !== 'publish'
-                || strpos($critical_page['post']->post_content, $critical_page['code']) === false
-                    ? true
-                    : $critical_page_problem;
-        }
-        if ($critical_page_problem) {
-            $msg = sprintf(
-                __('A potential issue has been detected with one or more of your Event Espresso pages. Go to %s to view your Event Espresso pages.',
-                    'event_espresso'),
-                '<a href="'
-                . admin_url('admin.php?page=espresso_general_settings&action=critical_pages')
-                . '">'
-                . __('Event Espresso Critical Pages Settings', 'event_espresso')
-                . '</a>'
-            );
-            EE_Error::add_persistent_admin_notice('critical_page_problem', $msg);
-        }
-        if (EE_Error::has_notices()) {
-            EE_Error::get_notices(false, true, true);
-        }
-    }
-
-
-
-    /**
-     * Returns the first post which uses the specified shortcode
-     *
-     * @param string $ee_shortcode usually one of the critical pages shortcodes, eg
-     *                             ESPRESSO_THANK_YOU. So we will search fora post with the content
-     *                             "[ESPRESSO_THANK_YOU"
-     *                             (we don't search for the closing shortcode bracket because they might have added
-     *                             parameter to the shortcode
-     * @return WP_Post or NULl
-     */
-    public static function get_page_by_ee_shortcode($ee_shortcode)
-    {
-        global $wpdb;
-        $shortcode_and_opening_bracket = '[' . $ee_shortcode;
-        $post_id = $wpdb->get_var("SELECT ID FROM {$wpdb->posts} WHERE post_content LIKE '%$shortcode_and_opening_bracket%' LIMIT 1");
-        if ($post_id) {
-            return get_post($post_id);
-        } else {
-            return null;
-        }
+	/**
+	 * verify_default_pages_exist
+	 *
+	 * @access public
+	 * @static
+	 * @return void
+	 */
+	public static function verify_default_pages_exist()
+	{
+		$critical_page_problem = false;
+		$critical_pages = array(
+			array(
+				'id'   => 'reg_page_id',
+				'name' => __('Registration Checkout', 'event_espresso'),
+				'post' => null,
+				'code' => 'ESPRESSO_CHECKOUT',
+			),
+			array(
+				'id'   => 'txn_page_id',
+				'name' => __('Transactions', 'event_espresso'),
+				'post' => null,
+				'code' => 'ESPRESSO_TXN_PAGE',
+			),
+			array(
+				'id'   => 'thank_you_page_id',
+				'name' => __('Thank You', 'event_espresso'),
+				'post' => null,
+				'code' => 'ESPRESSO_THANK_YOU',
+			),
+			array(
+				'id'   => 'cancel_page_id',
+				'name' => __('Registration Cancelled', 'event_espresso'),
+				'post' => null,
+				'code' => 'ESPRESSO_CANCELLED',
+			),
+		);
+		$EE_Core_Config = EE_Registry::instance()->CFG->core;
+		foreach ($critical_pages as $critical_page) {
+			// is critical page ID set in config ?
+			if ($EE_Core_Config->{$critical_page['id']} !== false) {
+				// attempt to find post by ID
+				$critical_page['post'] = get_post($EE_Core_Config->{$critical_page['id']});
+			}
+			// no dice?
+			if ($critical_page['post'] === null) {
+				// attempt to find post by title
+				$critical_page['post'] = self::get_page_by_ee_shortcode($critical_page['code']);
+				// still nothing?
+				if ($critical_page['post'] === null) {
+					$critical_page = EEH_Activation::create_critical_page($critical_page);
+					// REALLY? Still nothing ??!?!?
+					if ($critical_page['post'] === null) {
+						$msg = __('The Event Espresso critical page configuration settings could not be updated.',
+							'event_espresso');
+						EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+						break;
+					}
+				}
+			}
+			// track post_shortcodes
+			if ($critical_page['post']) {
+				EEH_Activation::_track_critical_page_post_shortcodes($critical_page);
+			}
+			// check that Post ID matches critical page ID in config
+			if (
+				isset($critical_page['post']->ID)
+				&& $critical_page['post']->ID !== $EE_Core_Config->{$critical_page['id']}
+			) {
+				//update Config with post ID
+				$EE_Core_Config->{$critical_page['id']} = $critical_page['post']->ID;
+				if ( ! EE_Config::instance()->update_espresso_config(false, false)) {
+					$msg = __('The Event Espresso critical page configuration settings could not be updated.',
+						'event_espresso');
+					EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+				}
+			}
+			$critical_page_problem =
+				! isset($critical_page['post']->post_status)
+				|| $critical_page['post']->post_status !== 'publish'
+				|| strpos($critical_page['post']->post_content, $critical_page['code']) === false
+					? true
+					: $critical_page_problem;
+		}
+		if ($critical_page_problem) {
+			$msg = sprintf(
+				__('A potential issue has been detected with one or more of your Event Espresso pages. Go to %s to view your Event Espresso pages.',
+					'event_espresso'),
+				'<a href="'
+				. admin_url('admin.php?page=espresso_general_settings&action=critical_pages')
+				. '">'
+				. __('Event Espresso Critical Pages Settings', 'event_espresso')
+				. '</a>'
+			);
+			EE_Error::add_persistent_admin_notice('critical_page_problem', $msg);
+		}
+		if (EE_Error::has_notices()) {
+			EE_Error::get_notices(false, true, true);
+		}
+	}
+
+
+
+	/**
+	 * Returns the first post which uses the specified shortcode
+	 *
+	 * @param string $ee_shortcode usually one of the critical pages shortcodes, eg
+	 *                             ESPRESSO_THANK_YOU. So we will search fora post with the content
+	 *                             "[ESPRESSO_THANK_YOU"
+	 *                             (we don't search for the closing shortcode bracket because they might have added
+	 *                             parameter to the shortcode
+	 * @return WP_Post or NULl
+	 */
+	public static function get_page_by_ee_shortcode($ee_shortcode)
+	{
+		global $wpdb;
+		$shortcode_and_opening_bracket = '[' . $ee_shortcode;
+		$post_id = $wpdb->get_var("SELECT ID FROM {$wpdb->posts} WHERE post_content LIKE '%$shortcode_and_opening_bracket%' LIMIT 1");
+		if ($post_id) {
+			return get_post($post_id);
+		} else {
+			return null;
+		}
 //		return $post_id;
-    }
+	}
 
 
 
@@ -569,165 +569,165 @@ 
 
 
 
-    /**
-     *    This function adds a critical page's shortcode to the post_shortcodes array
-     *
-     * @access private
-     * @static
-     * @param array $critical_page
-     * @return void
-     */
-    private static function _track_critical_page_post_shortcodes($critical_page = array())
-    {
-        // check the goods
-        if ( ! $critical_page['post'] instanceof WP_Post) {
-            $msg = sprintf(
-                __('The Event Espresso critical page shortcode for the page %s can not be tracked because it is not a WP_Post object.',
-                    'event_espresso'),
-                $critical_page['name']
-            );
-            EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-            return;
-        }
-        $EE_Core_Config = EE_Registry::instance()->CFG->core;
-        // map shortcode to post
-        $EE_Core_Config->post_shortcodes[$critical_page['post']->post_name][$critical_page['code']] = $critical_page['post']->ID;
-        // and make sure it's NOT added to the WP "Posts Page"
-        // name of the WP Posts Page
-        $posts_page = EE_Config::get_page_for_posts();
-        if (isset($EE_Core_Config->post_shortcodes[$posts_page])) {
-            unset($EE_Core_Config->post_shortcodes[$posts_page][$critical_page['code']]);
-        }
-        if ($posts_page !== 'posts' && isset($EE_Core_Config->post_shortcodes['posts'])) {
-            unset($EE_Core_Config->post_shortcodes['posts'][$critical_page['code']]);
-        }
-        // update post_shortcode CFG
-        if ( ! EE_Config::instance()->update_espresso_config(false, false)) {
-            $msg = sprintf(
-                __('The Event Espresso critical page shortcode for the %s page could not be configured properly.',
-                    'event_espresso'),
-                $critical_page['name']
-            );
-            EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-        }
-    }
-
-
-
-    /**
-     * Tries to find the oldest admin for this site.  If there are no admins for this site then return NULL.
-     * The role being used to check is filterable.
-     *
-     * @since  4.6.0
-     * @global WPDB $wpdb
-     * @return mixed null|int WP_user ID or NULL
-     */
-    public static function get_default_creator_id()
-    {
-        global $wpdb;
-        if ( ! empty(self::$_default_creator_id)) {
-            return self::$_default_creator_id;
-        }/**/
-        $role_to_check = apply_filters('FHEE__EEH_Activation__get_default_creator_id__role_to_check', 'administrator');
-        //let's allow pre_filtering for early exits by alternative methods for getting id.  We check for truthy result and if so then exit early.
-        $pre_filtered_id = apply_filters('FHEE__EEH_Activation__get_default_creator_id__pre_filtered_id', false,
-            $role_to_check);
-        if ($pre_filtered_id !== false) {
-            return (int)$pre_filtered_id;
-        }
-        $capabilities_key = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('capabilities');
-        $query = $wpdb->prepare("SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '$capabilities_key' AND meta_value LIKE %s ORDER BY user_id ASC LIMIT 0,1",
-            '%' . $role_to_check . '%');
-        $user_id = $wpdb->get_var($query);
-        $user_id = apply_filters('FHEE__EEH_Activation_Helper__get_default_creator_id__user_id', $user_id);
-        if ($user_id && (int)$user_id) {
-            self::$_default_creator_id = (int)$user_id;
-            return self::$_default_creator_id;
-        } else {
-            return null;
-        }
-    }
-
-
-
-    /**
-     * used by EE and EE addons during plugin activation to create tables.
-     * Its a wrapper for EventEspresso\core\services\database\TableManager::createTable,
-     * but includes extra logic regarding activations.
-     *
-     * @access public
-     * @static
-     * @param string  $table_name              without the $wpdb->prefix
-     * @param string  $sql                     SQL for creating the table (contents between brackets in an SQL create
-     *                                         table query)
-     * @param string  $engine                  like 'ENGINE=MyISAM' or 'ENGINE=InnoDB'
-     * @param boolean $drop_pre_existing_table set to TRUE when you want to make SURE the table is completely empty
-     *                                         and new once this function is done (ie, you really do want to CREATE a
-     *                                         table, and expect it to be empty once you're done) leave as FALSE when
-     *                                         you just want to verify the table exists and matches this definition
-     *                                         (and if it HAS data in it you want to leave it be)
-     * @return void
-     * @throws EE_Error if there are database errors
-     */
-    public static function create_table($table_name, $sql, $engine = 'ENGINE=MyISAM ', $drop_pre_existing_table = false)
-    {
-        if (apply_filters('FHEE__EEH_Activation__create_table__short_circuit', false, $table_name, $sql)) {
-            return;
-        }
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        if ( ! function_exists('dbDelta')) {
-            require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
-        }
-        $tableAnalysis = \EEH_Activation::getTableAnalysis();
-        $wp_table_name = $tableAnalysis->ensureTableNameHasPrefix($table_name);
-        // do we need to first delete an existing version of this table ?
-        if ($drop_pre_existing_table && $tableAnalysis->tableExists($wp_table_name)) {
-            // ok, delete the table... but ONLY if it's empty
-            $deleted_safely = EEH_Activation::delete_db_table_if_empty($wp_table_name);
-            // table is NOT empty, are you SURE you want to delete this table ???
-            if ( ! $deleted_safely && defined('EE_DROP_BAD_TABLES') && EE_DROP_BAD_TABLES) {
-                \EEH_Activation::getTableManager()->dropTable($wp_table_name);
-            } else if ( ! $deleted_safely) {
-                // so we should be more cautious rather than just dropping tables so easily
-                error_log(
-                    sprintf(
-                        __(
-                            'It appears that database table "%1$s" exists when it shouldn\'t, and therefore may contain erroneous data. If you have previously restored your database from a backup that didn\'t remove the old tables, then we recommend: %2$s 1. create a new COMPLETE backup of your database, %2$s 2. delete ALL tables from your database, %2$s 3. restore to your previous backup. %2$s If, however, you have not restored to a backup, then somehow your "%3$s" WordPress option could not be read. You can probably ignore this message, but should investigate why that option is being removed.',
-                            'event_espresso'
-                        ),
-                        $wp_table_name,
-                        '<br/>',
-                        'espresso_db_update'
-                    )
-                );
-            }
-        }
-        $engine = str_replace('ENGINE=', '', $engine);
-        \EEH_Activation::getTableManager()->createTable($table_name, $sql, $engine);
-    }
-
-
-
-    /**
-     *    add_column_if_it_doesn't_exist
-     *    Checks if this column already exists on the specified table. Handy for addons which want to add a column
-     *
-     * @access     public
-     * @static
-     * @deprecated instead use TableManager::addColumn()
-     * @param string $table_name  (without "wp_", eg "esp_attendee"
-     * @param string $column_name
-     * @param string $column_info if your SQL were 'ALTER TABLE table_name ADD price VARCHAR(10)', this would be
-     *                            'VARCHAR(10)'
-     * @return bool|int
-     */
-    public static function add_column_if_it_doesnt_exist(
-        $table_name,
-        $column_name,
-        $column_info = 'INT UNSIGNED NOT NULL'
-    ) {
-        return \EEH_Activation::getTableManager()->addColumn($table_name, $column_name, $column_info);
-    }
+	/**
+	 *    This function adds a critical page's shortcode to the post_shortcodes array
+	 *
+	 * @access private
+	 * @static
+	 * @param array $critical_page
+	 * @return void
+	 */
+	private static function _track_critical_page_post_shortcodes($critical_page = array())
+	{
+		// check the goods
+		if ( ! $critical_page['post'] instanceof WP_Post) {
+			$msg = sprintf(
+				__('The Event Espresso critical page shortcode for the page %s can not be tracked because it is not a WP_Post object.',
+					'event_espresso'),
+				$critical_page['name']
+			);
+			EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+			return;
+		}
+		$EE_Core_Config = EE_Registry::instance()->CFG->core;
+		// map shortcode to post
+		$EE_Core_Config->post_shortcodes[$critical_page['post']->post_name][$critical_page['code']] = $critical_page['post']->ID;
+		// and make sure it's NOT added to the WP "Posts Page"
+		// name of the WP Posts Page
+		$posts_page = EE_Config::get_page_for_posts();
+		if (isset($EE_Core_Config->post_shortcodes[$posts_page])) {
+			unset($EE_Core_Config->post_shortcodes[$posts_page][$critical_page['code']]);
+		}
+		if ($posts_page !== 'posts' && isset($EE_Core_Config->post_shortcodes['posts'])) {
+			unset($EE_Core_Config->post_shortcodes['posts'][$critical_page['code']]);
+		}
+		// update post_shortcode CFG
+		if ( ! EE_Config::instance()->update_espresso_config(false, false)) {
+			$msg = sprintf(
+				__('The Event Espresso critical page shortcode for the %s page could not be configured properly.',
+					'event_espresso'),
+				$critical_page['name']
+			);
+			EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+		}
+	}
+
+
+
+	/**
+	 * Tries to find the oldest admin for this site.  If there are no admins for this site then return NULL.
+	 * The role being used to check is filterable.
+	 *
+	 * @since  4.6.0
+	 * @global WPDB $wpdb
+	 * @return mixed null|int WP_user ID or NULL
+	 */
+	public static function get_default_creator_id()
+	{
+		global $wpdb;
+		if ( ! empty(self::$_default_creator_id)) {
+			return self::$_default_creator_id;
+		}/**/
+		$role_to_check = apply_filters('FHEE__EEH_Activation__get_default_creator_id__role_to_check', 'administrator');
+		//let's allow pre_filtering for early exits by alternative methods for getting id.  We check for truthy result and if so then exit early.
+		$pre_filtered_id = apply_filters('FHEE__EEH_Activation__get_default_creator_id__pre_filtered_id', false,
+			$role_to_check);
+		if ($pre_filtered_id !== false) {
+			return (int)$pre_filtered_id;
+		}
+		$capabilities_key = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('capabilities');
+		$query = $wpdb->prepare("SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '$capabilities_key' AND meta_value LIKE %s ORDER BY user_id ASC LIMIT 0,1",
+			'%' . $role_to_check . '%');
+		$user_id = $wpdb->get_var($query);
+		$user_id = apply_filters('FHEE__EEH_Activation_Helper__get_default_creator_id__user_id', $user_id);
+		if ($user_id && (int)$user_id) {
+			self::$_default_creator_id = (int)$user_id;
+			return self::$_default_creator_id;
+		} else {
+			return null;
+		}
+	}
+
+
+
+	/**
+	 * used by EE and EE addons during plugin activation to create tables.
+	 * Its a wrapper for EventEspresso\core\services\database\TableManager::createTable,
+	 * but includes extra logic regarding activations.
+	 *
+	 * @access public
+	 * @static
+	 * @param string  $table_name              without the $wpdb->prefix
+	 * @param string  $sql                     SQL for creating the table (contents between brackets in an SQL create
+	 *                                         table query)
+	 * @param string  $engine                  like 'ENGINE=MyISAM' or 'ENGINE=InnoDB'
+	 * @param boolean $drop_pre_existing_table set to TRUE when you want to make SURE the table is completely empty
+	 *                                         and new once this function is done (ie, you really do want to CREATE a
+	 *                                         table, and expect it to be empty once you're done) leave as FALSE when
+	 *                                         you just want to verify the table exists and matches this definition
+	 *                                         (and if it HAS data in it you want to leave it be)
+	 * @return void
+	 * @throws EE_Error if there are database errors
+	 */
+	public static function create_table($table_name, $sql, $engine = 'ENGINE=MyISAM ', $drop_pre_existing_table = false)
+	{
+		if (apply_filters('FHEE__EEH_Activation__create_table__short_circuit', false, $table_name, $sql)) {
+			return;
+		}
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		if ( ! function_exists('dbDelta')) {
+			require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
+		}
+		$tableAnalysis = \EEH_Activation::getTableAnalysis();
+		$wp_table_name = $tableAnalysis->ensureTableNameHasPrefix($table_name);
+		// do we need to first delete an existing version of this table ?
+		if ($drop_pre_existing_table && $tableAnalysis->tableExists($wp_table_name)) {
+			// ok, delete the table... but ONLY if it's empty
+			$deleted_safely = EEH_Activation::delete_db_table_if_empty($wp_table_name);
+			// table is NOT empty, are you SURE you want to delete this table ???
+			if ( ! $deleted_safely && defined('EE_DROP_BAD_TABLES') && EE_DROP_BAD_TABLES) {
+				\EEH_Activation::getTableManager()->dropTable($wp_table_name);
+			} else if ( ! $deleted_safely) {
+				// so we should be more cautious rather than just dropping tables so easily
+				error_log(
+					sprintf(
+						__(
+							'It appears that database table "%1$s" exists when it shouldn\'t, and therefore may contain erroneous data. If you have previously restored your database from a backup that didn\'t remove the old tables, then we recommend: %2$s 1. create a new COMPLETE backup of your database, %2$s 2. delete ALL tables from your database, %2$s 3. restore to your previous backup. %2$s If, however, you have not restored to a backup, then somehow your "%3$s" WordPress option could not be read. You can probably ignore this message, but should investigate why that option is being removed.',
+							'event_espresso'
+						),
+						$wp_table_name,
+						'<br/>',
+						'espresso_db_update'
+					)
+				);
+			}
+		}
+		$engine = str_replace('ENGINE=', '', $engine);
+		\EEH_Activation::getTableManager()->createTable($table_name, $sql, $engine);
+	}
+
+
+
+	/**
+	 *    add_column_if_it_doesn't_exist
+	 *    Checks if this column already exists on the specified table. Handy for addons which want to add a column
+	 *
+	 * @access     public
+	 * @static
+	 * @deprecated instead use TableManager::addColumn()
+	 * @param string $table_name  (without "wp_", eg "esp_attendee"
+	 * @param string $column_name
+	 * @param string $column_info if your SQL were 'ALTER TABLE table_name ADD price VARCHAR(10)', this would be
+	 *                            'VARCHAR(10)'
+	 * @return bool|int
+	 */
+	public static function add_column_if_it_doesnt_exist(
+		$table_name,
+		$column_name,
+		$column_info = 'INT UNSIGNED NOT NULL'
+	) {
+		return \EEH_Activation::getTableManager()->addColumn($table_name, $column_name, $column_info);
+	}
 
 
 
@@ -764,13 +764,13 @@ 
 
 
 /**
-	 * delete_db_table_if_empty
-	 *
-	 * @access public
-	 * @static
-	 * @param string $table_name
-	 * @return bool | int
-	 */
+ * delete_db_table_if_empty
+ *
+ * @access public
+ * @static
+ * @param string $table_name
+ * @return bool | int
+ */
 	public static function delete_db_table_if_empty( $table_name ) {
 		if ( \EEH_Activation::getTableAnalysis()->tableIsEmpty( $table_name ) ) {
 			return \EEH_Activation::getTableManager()->dropTable( $table_name );
@@ -811,344 +811,344 @@ 
 
 
 
-    /**
-     * create_database_tables
-     *
-     * @access public
-     * @static
-     * @throws EE_Error
-     * @return boolean success (whether database is setup properly or not)
-     */
-    public static function create_database_tables()
-    {
-        EE_Registry::instance()->load_core('Data_Migration_Manager');
-        //find the migration script that sets the database to be compatible with the code
-        $dms_name = EE_Data_Migration_Manager::instance()->get_most_up_to_date_dms();
-        if ($dms_name) {
-            $current_data_migration_script = EE_Registry::instance()->load_dms($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()) {
-                if (WP_DEBUG) {
-                    foreach ($current_data_migration_script->get_errors() as $error) {
-                        EE_Error::add_error($error, __FILE__, __FUNCTION__, __LINE__);
-                    }
-                } else {
-                    EE_Error::add_error(__('There were errors creating the Event Espresso database tables and Event Espresso has been deactivated. To view the errors, please enable WP_DEBUG in your wp-config.php file.',
-                        'event_espresso'));
-                }
-                return false;
-            }
-            EE_Data_Migration_Manager::instance()->update_current_database_state_to();
-        } else {
-            EE_Error::add_error(__('Could not determine most up-to-date data migration script from which to pull database schema structure. So database is probably not setup properly',
-                'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        return true;
-    }
-
-
-
-    /**
-     * initialize_system_questions
-     *
-     * @access public
-     * @static
-     * @return void
-     */
-    public static function initialize_system_questions()
-    {
-        // QUESTION GROUPS
-        global $wpdb;
-        $table_name = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('esp_question_group');
-        $SQL = "SELECT QSG_system FROM $table_name WHERE QSG_system != 0";
-        // what we have
-        $question_groups = $wpdb->get_col($SQL);
-        // check the response
-        $question_groups = is_array($question_groups) ? $question_groups : array();
-        // what we should have
-        $QSG_systems = array(1, 2);
-        // loop thru what we should have and compare to what we have
-        foreach ($QSG_systems as $QSG_system) {
-            // reset values array
-            $QSG_values = array();
-            // if we don't have what we should have (but use $QST_system as as string because that's what we got from the db)
-            if ( ! in_array("$QSG_system", $question_groups)) {
-                // add it
-                switch ($QSG_system) {
-                    case 1:
-                        $QSG_values = array(
-                            'QSG_name'            => __('Personal Information', 'event_espresso'),
-                            'QSG_identifier'      => 'personal-information-' . time(),
-                            'QSG_desc'            => '',
-                            'QSG_order'           => 1,
-                            'QSG_show_group_name' => 1,
-                            'QSG_show_group_desc' => 1,
-                            'QSG_system'          => EEM_Question_Group::system_personal,
-                            'QSG_deleted'         => 0,
-                        );
-                        break;
-                    case 2:
-                        $QSG_values = array(
-                            'QSG_name'            => __('Address Information', 'event_espresso'),
-                            'QSG_identifier'      => 'address-information-' . time(),
-                            'QSG_desc'            => '',
-                            'QSG_order'           => 2,
-                            'QSG_show_group_name' => 1,
-                            'QSG_show_group_desc' => 1,
-                            'QSG_system'          => EEM_Question_Group::system_address,
-                            'QSG_deleted'         => 0,
-                        );
-                        break;
-                }
-                // make sure we have some values before inserting them
-                if ( ! empty($QSG_values)) {
-                    // insert system question
-                    $wpdb->insert(
-                        $table_name,
-                        $QSG_values,
-                        array('%s', '%s', '%s', '%d', '%d', '%d', '%d', '%d')
-                    );
-                    $QSG_IDs[$QSG_system] = $wpdb->insert_id;
-                }
-            }
-        }
-        // QUESTIONS
-        global $wpdb;
-        $table_name = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('esp_question');
-        $SQL = "SELECT QST_system FROM $table_name WHERE QST_system != ''";
-        // what we have
-        $questions = $wpdb->get_col($SQL);
-        // what we should have
-        $QST_systems = array(
-            'fname',
-            'lname',
-            'email',
-            'address',
-            'address2',
-            'city',
-            'country',
-            'state',
-            'zip',
-            'phone',
-        );
-        $order_for_group_1 = 1;
-        $order_for_group_2 = 1;
-        // loop thru what we should have and compare to what we have
-        foreach ($QST_systems as $QST_system) {
-            // reset values array
-            $QST_values = array();
-            // if we don't have what we should have
-            if ( ! in_array($QST_system, $questions)) {
-                // add it
-                switch ($QST_system) {
-                    case 'fname':
-                        $QST_values = array(
-                            'QST_display_text'  => __('First Name', 'event_espresso'),
-                            'QST_admin_label'   => __('First Name - System Question', 'event_espresso'),
-                            'QST_system'        => 'fname',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 1,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 1,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'lname':
-                        $QST_values = array(
-                            'QST_display_text'  => __('Last Name', 'event_espresso'),
-                            'QST_admin_label'   => __('Last Name - System Question', 'event_espresso'),
-                            'QST_system'        => 'lname',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 1,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 2,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'email':
-                        $QST_values = array(
-                            'QST_display_text'  => __('Email Address', 'event_espresso'),
-                            'QST_admin_label'   => __('Email Address - System Question', 'event_espresso'),
-                            'QST_system'        => 'email',
-                            'QST_type'          => 'EMAIL',
-                            'QST_required'      => 1,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 3,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'address':
-                        $QST_values = array(
-                            'QST_display_text'  => __('Address', 'event_espresso'),
-                            'QST_admin_label'   => __('Address - System Question', 'event_espresso'),
-                            'QST_system'        => 'address',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 4,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'address2':
-                        $QST_values = array(
-                            'QST_display_text'  => __('Address2', 'event_espresso'),
-                            'QST_admin_label'   => __('Address2 - System Question', 'event_espresso'),
-                            'QST_system'        => 'address2',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 5,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'city':
-                        $QST_values = array(
-                            'QST_display_text'  => __('City', 'event_espresso'),
-                            'QST_admin_label'   => __('City - System Question', 'event_espresso'),
-                            'QST_system'        => 'city',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 6,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'country' :
-                        $QST_values = array(
-                            'QST_display_text'  => __('Country', 'event_espresso'),
-                            'QST_admin_label'   => __('Country - System Question', 'event_espresso'),
-                            'QST_system'        => 'country',
-                            'QST_type'          => 'COUNTRY',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 7,
-                            'QST_admin_only'    => 0,
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'state':
-                        $QST_values = array(
-                            'QST_display_text'  => __('State/Province', 'event_espresso'),
-                            'QST_admin_label'   => __('State/Province - System Question', 'event_espresso'),
-                            'QST_system'        => 'state',
-                            'QST_type'          => 'STATE',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 8,
-                            'QST_admin_only'    => 0,
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'zip':
-                        $QST_values = array(
-                            'QST_display_text'  => __('Zip/Postal Code', 'event_espresso'),
-                            'QST_admin_label'   => __('Zip/Postal Code - System Question', 'event_espresso'),
-                            'QST_system'        => 'zip',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 9,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                    case 'phone':
-                        $QST_values = array(
-                            'QST_display_text'  => __('Phone Number', 'event_espresso'),
-                            'QST_admin_label'   => __('Phone Number - System Question', 'event_espresso'),
-                            'QST_system'        => 'phone',
-                            'QST_type'          => 'TEXT',
-                            'QST_required'      => 0,
-                            'QST_required_text' => __('This field is required', 'event_espresso'),
-                            'QST_order'         => 10,
-                            'QST_admin_only'    => 0,
-                            'QST_max'           => EEM_Question::instance()
-                                                               ->absolute_max_for_system_question($QST_system),
-                            'QST_wp_user'       => self::get_default_creator_id(),
-                            'QST_deleted'       => 0,
-                        );
-                        break;
-                }
-                if ( ! empty($QST_values)) {
-                    // insert system question
-                    $wpdb->insert(
-                        $table_name,
-                        $QST_values,
-                        array('%s', '%s', '%s', '%s', '%d', '%s', '%d', '%d', '%d', '%d')
-                    );
-                    $QST_ID = $wpdb->insert_id;
-                    // QUESTION GROUP QUESTIONS
-                    if (in_array($QST_system, array('fname', 'lname', 'email'))) {
-                        $system_question_we_want = EEM_Question_Group::system_personal;
-                    } else {
-                        $system_question_we_want = EEM_Question_Group::system_address;
-                    }
-                    if (isset($QSG_IDs[$system_question_we_want])) {
-                        $QSG_ID = $QSG_IDs[$system_question_we_want];
-                    } else {
-                        $id_col = EEM_Question_Group::instance()
-                                                    ->get_col(array(array('QSG_system' => $system_question_we_want)));
-                        if (is_array($id_col)) {
-                            $QSG_ID = reset($id_col);
-                        } else {
-                            //ok so we didn't find it in the db either?? that's weird because we should have inserted it at the start of this method
-                            EE_Log::instance()->log(
-                                __FILE__,
-                                __FUNCTION__,
-                                sprintf(
-                                    __('Could not associate question %1$s to a question group because no system question group existed',
-                                        'event_espresso'),
-                                    $QST_ID),
-                                'error');
-                            continue;
-                        }
-                    }
-                    // add system questions to groups
-                    $wpdb->insert(
-                        \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('esp_question_group_question'),
-                        array(
-                            'QSG_ID'    => $QSG_ID,
-                            'QST_ID'    => $QST_ID,
-                            'QGQ_order' => ($QSG_ID === 1) ? $order_for_group_1++ : $order_for_group_2++,
-                        ),
-                        array('%d', '%d', '%d')
-                    );
-                }
-            }
-        }
-    }
+	/**
+	 * create_database_tables
+	 *
+	 * @access public
+	 * @static
+	 * @throws EE_Error
+	 * @return boolean success (whether database is setup properly or not)
+	 */
+	public static function create_database_tables()
+	{
+		EE_Registry::instance()->load_core('Data_Migration_Manager');
+		//find the migration script that sets the database to be compatible with the code
+		$dms_name = EE_Data_Migration_Manager::instance()->get_most_up_to_date_dms();
+		if ($dms_name) {
+			$current_data_migration_script = EE_Registry::instance()->load_dms($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()) {
+				if (WP_DEBUG) {
+					foreach ($current_data_migration_script->get_errors() as $error) {
+						EE_Error::add_error($error, __FILE__, __FUNCTION__, __LINE__);
+					}
+				} else {
+					EE_Error::add_error(__('There were errors creating the Event Espresso database tables and Event Espresso has been deactivated. To view the errors, please enable WP_DEBUG in your wp-config.php file.',
+						'event_espresso'));
+				}
+				return false;
+			}
+			EE_Data_Migration_Manager::instance()->update_current_database_state_to();
+		} else {
+			EE_Error::add_error(__('Could not determine most up-to-date data migration script from which to pull database schema structure. So database is probably not setup properly',
+				'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * initialize_system_questions
+	 *
+	 * @access public
+	 * @static
+	 * @return void
+	 */
+	public static function initialize_system_questions()
+	{
+		// QUESTION GROUPS
+		global $wpdb;
+		$table_name = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('esp_question_group');
+		$SQL = "SELECT QSG_system FROM $table_name WHERE QSG_system != 0";
+		// what we have
+		$question_groups = $wpdb->get_col($SQL);
+		// check the response
+		$question_groups = is_array($question_groups) ? $question_groups : array();
+		// what we should have
+		$QSG_systems = array(1, 2);
+		// loop thru what we should have and compare to what we have
+		foreach ($QSG_systems as $QSG_system) {
+			// reset values array
+			$QSG_values = array();
+			// if we don't have what we should have (but use $QST_system as as string because that's what we got from the db)
+			if ( ! in_array("$QSG_system", $question_groups)) {
+				// add it
+				switch ($QSG_system) {
+					case 1:
+						$QSG_values = array(
+							'QSG_name'            => __('Personal Information', 'event_espresso'),
+							'QSG_identifier'      => 'personal-information-' . time(),
+							'QSG_desc'            => '',
+							'QSG_order'           => 1,
+							'QSG_show_group_name' => 1,
+							'QSG_show_group_desc' => 1,
+							'QSG_system'          => EEM_Question_Group::system_personal,
+							'QSG_deleted'         => 0,
+						);
+						break;
+					case 2:
+						$QSG_values = array(
+							'QSG_name'            => __('Address Information', 'event_espresso'),
+							'QSG_identifier'      => 'address-information-' . time(),
+							'QSG_desc'            => '',
+							'QSG_order'           => 2,
+							'QSG_show_group_name' => 1,
+							'QSG_show_group_desc' => 1,
+							'QSG_system'          => EEM_Question_Group::system_address,
+							'QSG_deleted'         => 0,
+						);
+						break;
+				}
+				// make sure we have some values before inserting them
+				if ( ! empty($QSG_values)) {
+					// insert system question
+					$wpdb->insert(
+						$table_name,
+						$QSG_values,
+						array('%s', '%s', '%s', '%d', '%d', '%d', '%d', '%d')
+					);
+					$QSG_IDs[$QSG_system] = $wpdb->insert_id;
+				}
+			}
+		}
+		// QUESTIONS
+		global $wpdb;
+		$table_name = \EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('esp_question');
+		$SQL = "SELECT QST_system FROM $table_name WHERE QST_system != ''";
+		// what we have
+		$questions = $wpdb->get_col($SQL);
+		// what we should have
+		$QST_systems = array(
+			'fname',
+			'lname',
+			'email',
+			'address',
+			'address2',
+			'city',
+			'country',
+			'state',
+			'zip',
+			'phone',
+		);
+		$order_for_group_1 = 1;
+		$order_for_group_2 = 1;
+		// loop thru what we should have and compare to what we have
+		foreach ($QST_systems as $QST_system) {
+			// reset values array
+			$QST_values = array();
+			// if we don't have what we should have
+			if ( ! in_array($QST_system, $questions)) {
+				// add it
+				switch ($QST_system) {
+					case 'fname':
+						$QST_values = array(
+							'QST_display_text'  => __('First Name', 'event_espresso'),
+							'QST_admin_label'   => __('First Name - System Question', 'event_espresso'),
+							'QST_system'        => 'fname',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 1,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 1,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'lname':
+						$QST_values = array(
+							'QST_display_text'  => __('Last Name', 'event_espresso'),
+							'QST_admin_label'   => __('Last Name - System Question', 'event_espresso'),
+							'QST_system'        => 'lname',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 1,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 2,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'email':
+						$QST_values = array(
+							'QST_display_text'  => __('Email Address', 'event_espresso'),
+							'QST_admin_label'   => __('Email Address - System Question', 'event_espresso'),
+							'QST_system'        => 'email',
+							'QST_type'          => 'EMAIL',
+							'QST_required'      => 1,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 3,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'address':
+						$QST_values = array(
+							'QST_display_text'  => __('Address', 'event_espresso'),
+							'QST_admin_label'   => __('Address - System Question', 'event_espresso'),
+							'QST_system'        => 'address',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 4,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'address2':
+						$QST_values = array(
+							'QST_display_text'  => __('Address2', 'event_espresso'),
+							'QST_admin_label'   => __('Address2 - System Question', 'event_espresso'),
+							'QST_system'        => 'address2',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 5,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'city':
+						$QST_values = array(
+							'QST_display_text'  => __('City', 'event_espresso'),
+							'QST_admin_label'   => __('City - System Question', 'event_espresso'),
+							'QST_system'        => 'city',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 6,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'country' :
+						$QST_values = array(
+							'QST_display_text'  => __('Country', 'event_espresso'),
+							'QST_admin_label'   => __('Country - System Question', 'event_espresso'),
+							'QST_system'        => 'country',
+							'QST_type'          => 'COUNTRY',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 7,
+							'QST_admin_only'    => 0,
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'state':
+						$QST_values = array(
+							'QST_display_text'  => __('State/Province', 'event_espresso'),
+							'QST_admin_label'   => __('State/Province - System Question', 'event_espresso'),
+							'QST_system'        => 'state',
+							'QST_type'          => 'STATE',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 8,
+							'QST_admin_only'    => 0,
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'zip':
+						$QST_values = array(
+							'QST_display_text'  => __('Zip/Postal Code', 'event_espresso'),
+							'QST_admin_label'   => __('Zip/Postal Code - System Question', 'event_espresso'),
+							'QST_system'        => 'zip',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 9,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+					case 'phone':
+						$QST_values = array(
+							'QST_display_text'  => __('Phone Number', 'event_espresso'),
+							'QST_admin_label'   => __('Phone Number - System Question', 'event_espresso'),
+							'QST_system'        => 'phone',
+							'QST_type'          => 'TEXT',
+							'QST_required'      => 0,
+							'QST_required_text' => __('This field is required', 'event_espresso'),
+							'QST_order'         => 10,
+							'QST_admin_only'    => 0,
+							'QST_max'           => EEM_Question::instance()
+															   ->absolute_max_for_system_question($QST_system),
+							'QST_wp_user'       => self::get_default_creator_id(),
+							'QST_deleted'       => 0,
+						);
+						break;
+				}
+				if ( ! empty($QST_values)) {
+					// insert system question
+					$wpdb->insert(
+						$table_name,
+						$QST_values,
+						array('%s', '%s', '%s', '%s', '%d', '%s', '%d', '%d', '%d', '%d')
+					);
+					$QST_ID = $wpdb->insert_id;
+					// QUESTION GROUP QUESTIONS
+					if (in_array($QST_system, array('fname', 'lname', 'email'))) {
+						$system_question_we_want = EEM_Question_Group::system_personal;
+					} else {
+						$system_question_we_want = EEM_Question_Group::system_address;
+					}
+					if (isset($QSG_IDs[$system_question_we_want])) {
+						$QSG_ID = $QSG_IDs[$system_question_we_want];
+					} else {
+						$id_col = EEM_Question_Group::instance()
+													->get_col(array(array('QSG_system' => $system_question_we_want)));
+						if (is_array($id_col)) {
+							$QSG_ID = reset($id_col);
+						} else {
+							//ok so we didn't find it in the db either?? that's weird because we should have inserted it at the start of this method
+							EE_Log::instance()->log(
+								__FILE__,
+								__FUNCTION__,
+								sprintf(
+									__('Could not associate question %1$s to a question group because no system question group existed',
+										'event_espresso'),
+									$QST_ID),
+								'error');
+							continue;
+						}
+					}
+					// add system questions to groups
+					$wpdb->insert(
+						\EEH_Activation::getTableAnalysis()->ensureTableNameHasPrefix('esp_question_group_question'),
+						array(
+							'QSG_ID'    => $QSG_ID,
+							'QST_ID'    => $QST_ID,
+							'QGQ_order' => ($QSG_ID === 1) ? $order_for_group_1++ : $order_for_group_2++,
+						),
+						array('%d', '%d', '%d')
+					);
+				}
+			}
+		}
+	}
 
 
 
@@ -1334,111 +1334,111 @@ 
 
 
 
-    /**
-     * @param \EE_Message_Resource_Manager $message_resource_manager
-     * @return array|bool
-     * @throws \EE_Error
-     */
-    protected static function _activate_new_message_types_for_active_messengers_and_generate_default_templates(
-        EE_Message_Resource_Manager $message_resource_manager
-    ) {
-        /** @type EE_messenger[] $active_messengers */
-        $active_messengers = $message_resource_manager->active_messengers();
-        $installed_message_types = $message_resource_manager->installed_message_types();
-        $templates_created = false;
-        foreach ($active_messengers as $active_messenger) {
-            $default_message_type_names_for_messenger = $active_messenger->get_default_message_types();
-            $default_message_type_names_to_activate = array();
-            // looping through each default message type reported by the messenger
-            // and setup the actual message types to activate.
-            foreach ($default_message_type_names_for_messenger as $default_message_type_name_for_messenger) {
-                // if already active or has already been activated before we skip
-                // (otherwise we might reactivate something user's intentionally deactivated.)
-                // we also skip if the message type is not installed.
-                if (
-                    $message_resource_manager->has_message_type_been_activated_for_messenger($default_message_type_name_for_messenger,
-                        $active_messenger->name)
-                    || $message_resource_manager->is_message_type_active_for_messenger(
-                        $active_messenger->name,
-                        $default_message_type_name_for_messenger
-                    )
-                    || ! isset($installed_message_types[$default_message_type_name_for_messenger])
-                ) {
-                    continue;
-                }
-                $default_message_type_names_to_activate[] = $default_message_type_name_for_messenger;
-            }
-            //let's activate!
-            $message_resource_manager->ensure_message_types_are_active(
-                $default_message_type_names_to_activate,
-                $active_messenger->name,
-                false
-            );
-            //activate the templates for these message types
-            if ( ! empty($default_message_type_names_to_activate)) {
-                $templates_created = EEH_MSG_Template::generate_new_templates(
-                    $active_messenger->name,
-                    $default_message_type_names_for_messenger,
-                    '',
-                    true
-                );
-            }
-        }
-        return $templates_created;
-    }
-
-
-
-    /**
-     * This will activate and generate default messengers and default message types for those messengers.
-     *
-     * @param EE_message_Resource_Manager $message_resource_manager
-     * @return array|bool  True means there were default messengers and message type templates generated.
-     *                     False means that there were no templates generated
-     *                     (which could simply mean there are no default message types for a messenger).
-     * @throws EE_Error
-     */
-    protected static function _activate_and_generate_default_messengers_and_message_templates(
-        EE_Message_Resource_Manager $message_resource_manager
-    ) {
-        /** @type EE_messenger[] $messengers_to_generate */
-        $messengers_to_generate = self::_get_default_messengers_to_generate_on_activation($message_resource_manager);
-        $installed_message_types = $message_resource_manager->installed_message_types();
-        $templates_generated = false;
-        foreach ($messengers_to_generate as $messenger_to_generate) {
-            $default_message_type_names_for_messenger = $messenger_to_generate->get_default_message_types();
-            //verify the default message types match an installed message type.
-            foreach ($default_message_type_names_for_messenger as $key => $name) {
-                if (
-                    ! isset($installed_message_types[$name])
-                    || $message_resource_manager->has_message_type_been_activated_for_messenger($name,
-                        $messenger_to_generate->name)
-                ) {
-                    unset($default_message_type_names_for_messenger[$key]);
-                }
-            }
-            // in previous iterations, the active_messengers option in the db
-            // needed updated before calling create templates. however with the changes this may not be necessary.
-            // This comment is left here just in case we discover that we _do_ need to update before
-            // passing off to create templates (after the refactor is done).
-            // @todo remove this comment when determined not necessary.
-            $message_resource_manager->activate_messenger(
-                $messenger_to_generate->name,
-                $default_message_type_names_for_messenger,
-                false
-            );
-            //create any templates needing created (or will reactivate templates already generated as necessary).
-            if ( ! empty($default_message_type_names_for_messenger)) {
-                $templates_generated = EEH_MSG_Template::generate_new_templates(
-                    $messenger_to_generate->name,
-                    $default_message_type_names_for_messenger,
-                    '',
-                    true
-                );
-            }
-        }
-        return $templates_generated;
-    }
+	/**
+	 * @param \EE_Message_Resource_Manager $message_resource_manager
+	 * @return array|bool
+	 * @throws \EE_Error
+	 */
+	protected static function _activate_new_message_types_for_active_messengers_and_generate_default_templates(
+		EE_Message_Resource_Manager $message_resource_manager
+	) {
+		/** @type EE_messenger[] $active_messengers */
+		$active_messengers = $message_resource_manager->active_messengers();
+		$installed_message_types = $message_resource_manager->installed_message_types();
+		$templates_created = false;
+		foreach ($active_messengers as $active_messenger) {
+			$default_message_type_names_for_messenger = $active_messenger->get_default_message_types();
+			$default_message_type_names_to_activate = array();
+			// looping through each default message type reported by the messenger
+			// and setup the actual message types to activate.
+			foreach ($default_message_type_names_for_messenger as $default_message_type_name_for_messenger) {
+				// if already active or has already been activated before we skip
+				// (otherwise we might reactivate something user's intentionally deactivated.)
+				// we also skip if the message type is not installed.
+				if (
+					$message_resource_manager->has_message_type_been_activated_for_messenger($default_message_type_name_for_messenger,
+						$active_messenger->name)
+					|| $message_resource_manager->is_message_type_active_for_messenger(
+						$active_messenger->name,
+						$default_message_type_name_for_messenger
+					)
+					|| ! isset($installed_message_types[$default_message_type_name_for_messenger])
+				) {
+					continue;
+				}
+				$default_message_type_names_to_activate[] = $default_message_type_name_for_messenger;
+			}
+			//let's activate!
+			$message_resource_manager->ensure_message_types_are_active(
+				$default_message_type_names_to_activate,
+				$active_messenger->name,
+				false
+			);
+			//activate the templates for these message types
+			if ( ! empty($default_message_type_names_to_activate)) {
+				$templates_created = EEH_MSG_Template::generate_new_templates(
+					$active_messenger->name,
+					$default_message_type_names_for_messenger,
+					'',
+					true
+				);
+			}
+		}
+		return $templates_created;
+	}
+
+
+
+	/**
+	 * This will activate and generate default messengers and default message types for those messengers.
+	 *
+	 * @param EE_message_Resource_Manager $message_resource_manager
+	 * @return array|bool  True means there were default messengers and message type templates generated.
+	 *                     False means that there were no templates generated
+	 *                     (which could simply mean there are no default message types for a messenger).
+	 * @throws EE_Error
+	 */
+	protected static function _activate_and_generate_default_messengers_and_message_templates(
+		EE_Message_Resource_Manager $message_resource_manager
+	) {
+		/** @type EE_messenger[] $messengers_to_generate */
+		$messengers_to_generate = self::_get_default_messengers_to_generate_on_activation($message_resource_manager);
+		$installed_message_types = $message_resource_manager->installed_message_types();
+		$templates_generated = false;
+		foreach ($messengers_to_generate as $messenger_to_generate) {
+			$default_message_type_names_for_messenger = $messenger_to_generate->get_default_message_types();
+			//verify the default message types match an installed message type.
+			foreach ($default_message_type_names_for_messenger as $key => $name) {
+				if (
+					! isset($installed_message_types[$name])
+					|| $message_resource_manager->has_message_type_been_activated_for_messenger($name,
+						$messenger_to_generate->name)
+				) {
+					unset($default_message_type_names_for_messenger[$key]);
+				}
+			}
+			// in previous iterations, the active_messengers option in the db
+			// needed updated before calling create templates. however with the changes this may not be necessary.
+			// This comment is left here just in case we discover that we _do_ need to update before
+			// passing off to create templates (after the refactor is done).
+			// @todo remove this comment when determined not necessary.
+			$message_resource_manager->activate_messenger(
+				$messenger_to_generate->name,
+				$default_message_type_names_for_messenger,
+				false
+			);
+			//create any templates needing created (or will reactivate templates already generated as necessary).
+			if ( ! empty($default_message_type_names_for_messenger)) {
+				$templates_generated = EEH_MSG_Template::generate_new_templates(
+					$messenger_to_generate->name,
+					$default_message_type_names_for_messenger,
+					'',
+					true
+				);
+			}
+		}
+		return $templates_generated;
+	}
 
 
 
@@ -1606,111 +1606,111 @@ 
 
 
 
-    /**
-     * Drops all the tables mentioned in a single MYSQL query. Double-checks
-     * each table name provided has a wpdb prefix attached, and that it exists.
-     * Returns the list actually deleted
-     *
-     * @deprecated in 4.9.13. Instead use TableManager::dropTables()
-     * @global WPDB $wpdb
-     * @param array $table_names
-     * @return array of table names which we deleted
-     */
-    public static function drop_tables($table_names)
-    {
-        return \EEH_Activation::getTableManager()->dropTables($table_names);
-    }
-
-
-
-    /**
-     * plugin_uninstall
-     *
-     * @access public
-     * @static
-     * @param bool $remove_all
-     * @return void
-     */
-    public static function delete_all_espresso_tables_and_data($remove_all = true)
-    {
-        global $wpdb;
-        self::drop_espresso_tables();
-        $wp_options_to_delete = array(
-            'ee_no_ticket_prices'                => true,
-            'ee_active_messengers'               => true,
-            'ee_has_activated_messenger'         => true,
-            'ee_flush_rewrite_rules'             => true,
-            'ee_config'                          => false,
-            'ee_data_migration_current_db_state' => true,
-            'ee_data_migration_mapping_'         => false,
-            'ee_data_migration_script_'          => false,
-            'ee_data_migrations'                 => true,
-            'ee_dms_map'                         => false,
-            'ee_notices'                         => true,
-            'lang_file_check_'                   => false,
-            'ee_maintenance_mode'                => true,
-            'ee_ueip_optin'                      => true,
-            'ee_ueip_has_notified'               => true,
-            'ee_plugin_activation_errors'        => true,
-            'ee_id_mapping_from'                 => false,
-            'espresso_persistent_admin_notices'  => true,
-            'ee_encryption_key'                  => true,
-            'pue_force_upgrade_'                 => false,
-            'pue_json_error_'                    => false,
-            'pue_install_key_'                   => false,
-            'pue_verification_error_'            => false,
-            'pu_dismissed_upgrade_'              => false,
-            'external_updates-'                  => false,
-            'ee_extra_data'                      => true,
-            'ee_ssn_'                            => false,
-            'ee_rss_'                            => false,
-            'ee_rte_n_tx_'                       => false,
-            'ee_pers_admin_notices'              => true,
-            'ee_job_parameters_'                 => false,
-            'ee_upload_directories_incomplete'   => true,
-            'ee_verified_db_collations'          => true,
-        );
-        if (is_main_site()) {
-            $wp_options_to_delete['ee_network_config'] = true;
-        }
-        $undeleted_options = array();
-        foreach ($wp_options_to_delete as $option_name => $no_wildcard) {
-            if ($no_wildcard) {
-                if ( ! delete_option($option_name)) {
-                    $undeleted_options[] = $option_name;
-                }
-            } else {
-                $option_names_to_delete_from_wildcard = $wpdb->get_col("SELECT option_name FROM $wpdb->options WHERE option_name LIKE '%$option_name%'");
-                foreach ($option_names_to_delete_from_wildcard as $option_name_from_wildcard) {
-                    if ( ! delete_option($option_name_from_wildcard)) {
-                        $undeleted_options[] = $option_name_from_wildcard;
-                    }
-                }
-            }
-        }
-        //also, let's make sure the "ee_config_option_names" wp option stays out by removing the action that adds it
-        remove_action('shutdown', array(EE_Config::instance(), 'shutdown'), 10);
-        if ($remove_all && $espresso_db_update = get_option('espresso_db_update')) {
-            $db_update_sans_ee4 = array();
-            foreach ($espresso_db_update as $version => $times_activated) {
-                if ((string)$version[0] === '3') {//if its NON EE4
-                    $db_update_sans_ee4[$version] = $times_activated;
-                }
-            }
-            update_option('espresso_db_update', $db_update_sans_ee4);
-        }
-        $errors = '';
-        if ( ! empty($undeleted_options)) {
-            $errors .= sprintf(
-                __('The following wp-options could not be deleted: %s%s', 'event_espresso'),
-                '<br/>',
-                implode(',<br/>', $undeleted_options)
-            );
-        }
-        if ( ! empty($errors)) {
-            EE_Error::add_attention($errors, __FILE__, __FUNCTION__, __LINE__);
-        }
-    }
+	/**
+	 * Drops all the tables mentioned in a single MYSQL query. Double-checks
+	 * each table name provided has a wpdb prefix attached, and that it exists.
+	 * Returns the list actually deleted
+	 *
+	 * @deprecated in 4.9.13. Instead use TableManager::dropTables()
+	 * @global WPDB $wpdb
+	 * @param array $table_names
+	 * @return array of table names which we deleted
+	 */
+	public static function drop_tables($table_names)
+	{
+		return \EEH_Activation::getTableManager()->dropTables($table_names);
+	}
+
+
+
+	/**
+	 * plugin_uninstall
+	 *
+	 * @access public
+	 * @static
+	 * @param bool $remove_all
+	 * @return void
+	 */
+	public static function delete_all_espresso_tables_and_data($remove_all = true)
+	{
+		global $wpdb;
+		self::drop_espresso_tables();
+		$wp_options_to_delete = array(
+			'ee_no_ticket_prices'                => true,
+			'ee_active_messengers'               => true,
+			'ee_has_activated_messenger'         => true,
+			'ee_flush_rewrite_rules'             => true,
+			'ee_config'                          => false,
+			'ee_data_migration_current_db_state' => true,
+			'ee_data_migration_mapping_'         => false,
+			'ee_data_migration_script_'          => false,
+			'ee_data_migrations'                 => true,
+			'ee_dms_map'                         => false,
+			'ee_notices'                         => true,
+			'lang_file_check_'                   => false,
+			'ee_maintenance_mode'                => true,
+			'ee_ueip_optin'                      => true,
+			'ee_ueip_has_notified'               => true,
+			'ee_plugin_activation_errors'        => true,
+			'ee_id_mapping_from'                 => false,
+			'espresso_persistent_admin_notices'  => true,
+			'ee_encryption_key'                  => true,
+			'pue_force_upgrade_'                 => false,
+			'pue_json_error_'                    => false,
+			'pue_install_key_'                   => false,
+			'pue_verification_error_'            => false,
+			'pu_dismissed_upgrade_'              => false,
+			'external_updates-'                  => false,
+			'ee_extra_data'                      => true,
+			'ee_ssn_'                            => false,
+			'ee_rss_'                            => false,
+			'ee_rte_n_tx_'                       => false,
+			'ee_pers_admin_notices'              => true,
+			'ee_job_parameters_'                 => false,
+			'ee_upload_directories_incomplete'   => true,
+			'ee_verified_db_collations'          => true,
+		);
+		if (is_main_site()) {
+			$wp_options_to_delete['ee_network_config'] = true;
+		}
+		$undeleted_options = array();
+		foreach ($wp_options_to_delete as $option_name => $no_wildcard) {
+			if ($no_wildcard) {
+				if ( ! delete_option($option_name)) {
+					$undeleted_options[] = $option_name;
+				}
+			} else {
+				$option_names_to_delete_from_wildcard = $wpdb->get_col("SELECT option_name FROM $wpdb->options WHERE option_name LIKE '%$option_name%'");
+				foreach ($option_names_to_delete_from_wildcard as $option_name_from_wildcard) {
+					if ( ! delete_option($option_name_from_wildcard)) {
+						$undeleted_options[] = $option_name_from_wildcard;
+					}
+				}
+			}
+		}
+		//also, let's make sure the "ee_config_option_names" wp option stays out by removing the action that adds it
+		remove_action('shutdown', array(EE_Config::instance(), 'shutdown'), 10);
+		if ($remove_all && $espresso_db_update = get_option('espresso_db_update')) {
+			$db_update_sans_ee4 = array();
+			foreach ($espresso_db_update as $version => $times_activated) {
+				if ((string)$version[0] === '3') {//if its NON EE4
+					$db_update_sans_ee4[$version] = $times_activated;
+				}
+			}
+			update_option('espresso_db_update', $db_update_sans_ee4);
+		}
+		$errors = '';
+		if ( ! empty($undeleted_options)) {
+			$errors .= sprintf(
+				__('The following wp-options could not be deleted: %s%s', 'event_espresso'),
+				'<br/>',
+				implode(',<br/>', $undeleted_options)
+			);
+		}
+		if ( ! empty($errors)) {
+			EE_Error::add_attention($errors, __FILE__, __FUNCTION__, __LINE__);
+		}
+	}
 
 	/**
 	 * Gets the mysql error code from the last used query by wpdb

modules/single_page_checkout/EED_Single_Page_Checkout.module.php

Indentation +1688 added lines, -1688 removed lines

@@ -2,7 +2,7 @@ 
 use EventEspresso\core\exceptions\InvalidEntityException;
 
 if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -17,1693 +17,1693 @@ 
 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_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)) {
-            // hook into the top of pre_get_posts to set the reg step routing, which gives other modules or plugins a chance to modify the reg steps, but just before the routes get called
-            add_action('pre_get_posts', array('EED_Single_Page_Checkout', 'load_reg_steps'), 1);
-            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 ( ! isset(EE_Registry::instance()->REQ)) {
-            EE_Registry::instance()->load_core('Request_Handler');
-        }
-    }
-
-
-
-    /**
-     *    set_definitions
-     *
-     * @access    public
-     * @return    void
-     * @throws \EE_Error
-     */
-    public static function set_definitions()
-    {
-        define('SPCO_BASE_PATH', rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS);
-        define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
-        define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
-        define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
-        define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
-        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
-        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
-        EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
-            __('%1$sWe\'re sorry, but you\'re registration time has expired.%2$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 except our apologies for any inconvenience this may have caused.%8$s',
-                'event_espresso'),
-            '<h4 class="important-notice">',
-            '</h4>',
-            '<br />',
-            '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
-            '">',
-            '</a>',
-            '</p>'
-        );
-    }
-
-
-
-    /**
-     * load_reg_steps
-     * loads and instantiates each reg step based on the EE_Registry::instance()->CFG->registration->reg_steps array
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return void
-     */
-    public static function load_reg_steps()
-    {
-        static $reg_steps_loaded = false;
-        if ($reg_steps_loaded) {
-            return;
-        }
-        // filter list of reg_steps
-        $reg_steps_to_load = (array)apply_filters(
-            'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
-            EED_Single_Page_Checkout::get_reg_steps()
-        );
-        // sort by key (order)
-        ksort($reg_steps_to_load);
-        // loop through folders
-        foreach ($reg_steps_to_load as $order => $reg_step) {
-            // we need a
-            if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
-                // copy over to the reg_steps_array
-                EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
-                // register custom key route for each reg step
-                // ie: step=>"slug" - this is the entire reason we load the reg steps array now
-                EE_Config::register_route($reg_step['slug'], 'EED_Single_Page_Checkout', 'run', 'step');
-                // add AJAX or other hooks
-                if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
-                    // setup autoloaders if necessary
-                    if ( ! class_exists($reg_step['class_name'])) {
-                        EEH_Autoloader::register_autoloaders_for_each_file_in_folder($reg_step['file_path'], true);
-                    }
-                    if (is_callable($reg_step['class_name'], 'set_hooks')) {
-                        call_user_func(array($reg_step['class_name'], 'set_hooks'));
-                    }
-                }
-            }
-        }
-        $reg_steps_loaded = true;
-    }
-
-
-
-    /**
-     *    get_reg_steps
-     *
-     * @access    public
-     * @return    array
-     */
-    public static function get_reg_steps()
-    {
-        $reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
-        if (empty($reg_steps)) {
-            $reg_steps = array(
-                10  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
-                    'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
-                    'slug'       => 'attendee_information',
-                    'has_hooks'  => false,
-                ),
-                20  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
-                    'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
-                    'slug'       => 'registration_confirmation',
-                    'has_hooks'  => false,
-                ),
-                30  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
-                    'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
-                    'slug'       => 'payment_options',
-                    'has_hooks'  => true,
-                ),
-                999 => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
-                    'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
-                    'slug'       => 'finalize_registration',
-                    'has_hooks'  => false,
-                ),
-            );
-        }
-        return $reg_steps;
-    }
-
-
-
-    /**
-     *    registration_checkout_for_admin
-     *
-     * @access    public
-     * @return    string
-     * @throws \EE_Error
-     */
-    public static function registration_checkout_for_admin()
-    {
-        EED_Single_Page_Checkout::load_reg_steps();
-        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_reg_steps();
-        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
-        $current_request_uri = remove_query_arg(array_flip($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;
-    }
-
-
-
-    /**
-     *    run
-     *
-     * @access    public
-     * @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 {
-            $this->_verify_session();
-            // setup the EE_Checkout object
-            $this->checkout = $this->_initialize_checkout();
-            // filter checkout
-            $this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
-            // get the $_GET
-            $this->_get_request_vars();
-            if ($this->_block_bots()) {
-                return;
-            }
-            // filter continue_reg
-            $this->checkout->continue_reg = apply_filters('FHEE__EED_Single_Page_Checkout__init___continue_reg', true, $this->checkout);
-            // load the reg steps array
-            if ( ! $this->_load_and_instantiate_reg_steps()) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // set the current step
-            $this->checkout->set_current_step($this->checkout->step);
-            // and the next step
-            $this->checkout->set_next_step();
-            // verify that everything has been setup correctly
-            if ( ! ($this->_verify_transaction_and_get_registrations() && $this->_final_verifications())) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // lock the transaction
-            $this->checkout->transaction->lock();
-            // make sure all of our cached objects are added to their respective model entity mappers
-            $this->checkout->refresh_all_entities();
-            // set amount owing
-            $this->checkout->amount_owing = $this->checkout->transaction->remaining();
-            // initialize each reg step, which gives them the chance to potentially alter the process
-            $this->_initialize_reg_steps();
-            // DEBUG LOG
-            //$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
-            // get reg form
-            if( ! $this->_check_form_submission()) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // checkout the action!!!
-            $this->_process_form_action();
-            // add some style and make it dance
-            $this->add_styles_and_scripts();
-            // kk... SPCO has successfully run
-            EED_Single_Page_Checkout::$_initialized = true;
-            // set no cache headers and constants
-            EE_System::do_not_cache();
-            // add anchor
-            add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
-            // remove transaction lock
-            add_action('shutdown', array($this, 'unlock_transaction'), 1);
-        } catch (Exception $e) {
-            EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
-        }
-    }
-
-
-
-    /**
-     *    _verify_session
-     * checks that the session is valid and not expired
-     *
-     * @access    private
-     * @throws EE_Error
-     */
-    private function _verify_session()
-    {
-        if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
-            throw new EE_Error(__('The EE_Session class could not be loaded.', 'event_espresso'));
-        }
-        // is session still valid ?
-        if (EE_Registry::instance()->SSN->expired() && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === '') {
-            $this->checkout = new EE_Checkout();
-            EE_Registry::instance()->SSN->reset_cart();
-            EE_Registry::instance()->SSN->reset_checkout();
-            EE_Registry::instance()->SSN->reset_transaction();
-            EE_Error::add_attention(EE_Registry::$i18n_js_strings['registration_expiration_notice'], __FILE__,
-                __FUNCTION__, __LINE__);
-            EE_Registry::instance()->SSN->reset_expired();
-        }
-    }
-
-
-
-    /**
-     *    _initialize_checkout
-     * loads and instantiates EE_Checkout
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return EE_Checkout
-     */
-    private function _initialize_checkout()
-    {
-        // look in session for existing checkout
-        /** @type EE_Checkout $checkout */
-        $checkout = EE_Registry::instance()->SSN->checkout();
-        // verify
-        if ( ! $checkout instanceof EE_Checkout) {
-            // instantiate EE_Checkout object for handling the properties of the current checkout process
-            $checkout = EE_Registry::instance()->load_file(SPCO_INC_PATH, 'EE_Checkout', 'class', array(), false);
-        } else {
-            if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
-                $this->unlock_transaction();
-                wp_safe_redirect($checkout->redirect_url);
-                exit();
-            }
-        }
-        $checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
-        // verify again
-        if ( ! $checkout instanceof EE_Checkout) {
-            throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
-        }
-        // reset anything that needs a clean slate for each request
-        $checkout->reset_for_current_request();
-        return $checkout;
-    }
-
-
-
-    /**
-     *    _get_request_vars
-     *
-     * @access    private
-     * @return    void
-     * @throws \EE_Error
-     */
-    private function _get_request_vars()
-    {
-        // load classes
-        EED_Single_Page_Checkout::load_request_handler();
-        //make sure this request is marked as belonging to EE
-        EE_Registry::instance()->REQ->set_espresso_page(true);
-        // which step is being requested ?
-        $this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
-        // which step is being edited ?
-        $this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
-        // and what we're doing on the current step
-        $this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
-        // timestamp
-        $this->checkout->uts = EE_Registry::instance()->REQ->get('uts', 0);
-        // returning to edit ?
-        $this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
-        // or some other kind of revisit ?
-        $this->checkout->revisit = EE_Registry::instance()->REQ->get('revisit', false);
-        // and whether or not to generate a reg form for this request
-        $this->checkout->generate_reg_form = EE_Registry::instance()->REQ->get('generate_reg_form', true);        // TRUE 	FALSE
-        // and whether or not to process a reg form submission for this request
-        $this->checkout->process_form_submission = EE_Registry::instance()->REQ->get(
-            'process_form_submission',
-            $this->checkout->action === 'process_reg_step'
-        ); // TRUE 	FALSE
-        $this->checkout->process_form_submission = $this->checkout->action !== 'display_spco_reg_step'
-            ? $this->checkout->process_form_submission
-            : false;        // TRUE 	FALSE
-        // $this->_display_request_vars();
-    }
-
-
-
-    /**
-     *  _display_request_vars
-     *
-     * @access    protected
-     * @return    void
-     */
-    protected function _display_request_vars()
-    {
-        if ( ! WP_DEBUG) {
-            return;
-        }
-        EEH_Debug_Tools::printr($_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    array
-     */
-    private function _get_first_step()
-    {
-        $first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
-        return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
-    }
-
-
-
-    /**
-     *    _load_and_instantiate_reg_steps
-     *  instantiates each reg step based on the loaded reg_steps array
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    bool
-     */
-    private function _load_and_instantiate_reg_steps()
-    {
-        // have reg_steps already been instantiated ?
-        if (
-            empty($this->checkout->reg_steps)
-            || apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
-        ) {
-            // if not, then loop through raw reg steps array
-            foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
-                if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
-                    return false;
-                }
-            }
-            EE_Registry::instance()->CFG->registration->skip_reg_confirmation = true;
-            EE_Registry::instance()->CFG->registration->reg_confirmation_last = true;
-            // skip the registration_confirmation page ?
-            if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
-                // just remove it from the reg steps array
-                $this->checkout->remove_reg_step('registration_confirmation', false);
-            } else if (
-                isset($this->checkout->reg_steps['registration_confirmation'])
-                && EE_Registry::instance()->CFG->registration->reg_confirmation_last
-            ) {
-                // set the order to something big like 100
-                $this->checkout->set_reg_step_order('registration_confirmation', 100);
-            }
-            // filter the array for good luck
-            $this->checkout->reg_steps = apply_filters(
-                'FHEE__Single_Page_Checkout__load_reg_steps__reg_steps',
-                $this->checkout->reg_steps
-            );
-            // finally re-sort based on the reg step class order properties
-            $this->checkout->sort_reg_steps();
-        } else {
-            foreach ($this->checkout->reg_steps as $reg_step) {
-                // set all current step stati to FALSE
-                $reg_step->set_is_current_step(false);
-            }
-        }
-        if (empty($this->checkout->reg_steps)) {
-            EE_Error::add_error(__('No Reg Steps were loaded..', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        // make reg step details available to JS
-        $this->checkout->set_reg_step_JSON_info();
-        return true;
-    }
-
-
-
-    /**
-     *     _load_and_instantiate_reg_step
-     *
-     * @access    private
-     * @param array $reg_step
-     * @param int   $order
-     * @return bool
-     */
-    private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0)
-    {
-        // we need a file_path, class_name, and slug to add a reg step
-        if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
-            // if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
-            if (
-                $this->checkout->reg_url_link
-                && $this->checkout->step !== $reg_step['slug']
-                && $reg_step['slug'] !== 'finalize_registration'
-            ) {
-                return true;
-            }
-            // instantiate step class using file path and class name
-            $reg_step_obj = EE_Registry::instance()->load_file(
-                $reg_step['file_path'],
-                $reg_step['class_name'],
-                'class',
-                $this->checkout,
-                false
-            );
-            // did we gets the goods ?
-            if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
-                // set reg step order based on config
-                $reg_step_obj->set_order($order);
-                // add instantiated reg step object to the master reg steps array
-                $this->checkout->add_reg_step($reg_step_obj);
-            } else {
-                EE_Error::add_error(
-                    __('The current step could not be set.', 'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-                return false;
-            }
-        } else {
-            if (WP_DEBUG) {
-                EE_Error::add_error(
-                    sprintf(
-                        __('A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s', 'event_espresso'),
-                        isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
-                        isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
-                        isset($reg_step['slug']) ? $reg_step['slug'] : '',
-                        '<ul>',
-                        '<li>',
-                        '</li>',
-                        '</ul>'
-                    ),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-            }
-            return false;
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _verify_transaction_and_get_registrations
-     *
-     * @access private
-     * @return bool
-     */
-    private function _verify_transaction_and_get_registrations()
-    {
-        // was there already a valid transaction in the checkout from the session ?
-        if ( ! $this->checkout->transaction instanceof EE_Transaction) {
-            // get transaction from db or session
-            $this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
-                ? $this->_get_transaction_and_cart_for_previous_visit()
-                : $this->_get_cart_for_current_session_and_setup_new_transaction();
-            if ( ! $this->checkout->transaction instanceof EE_Transaction) {
-                EE_Error::add_error(
-                    __('Your Registration and Transaction information could not be retrieved from the db.',
-                        'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-                $this->checkout->transaction = EE_Transaction::new_instance();
-                // add some style and make it dance
-                $this->add_styles_and_scripts();
-                EED_Single_Page_Checkout::$_initialized = true;
-                return false;
-            }
-            // and the registrations for the transaction
-            $this->_get_registrations($this->checkout->transaction);
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _get_transaction_and_cart_for_previous_visit
-     *
-     * @access private
-     * @return mixed EE_Transaction|NULL
-     */
-    private function _get_transaction_and_cart_for_previous_visit()
-    {
-        /** @var $TXN_model EEM_Transaction */
-        $TXN_model = EE_Registry::instance()->load_model('Transaction');
-        // because the reg_url_link is present in the request, this is a return visit to SPCO, so we'll get the transaction data from the db
-        $transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
-        // verify transaction
-        if ($transaction instanceof EE_Transaction) {
-            // and get the cart that was used for that transaction
-            $this->checkout->cart = $this->_get_cart_for_transaction($transaction);
-            return $transaction;
-        } else {
-            EE_Error::add_error(__('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
-            return null;
-        }
-    }
-
-
-
-    /**
-     * _get_cart_for_transaction
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    private function _get_cart_for_transaction($transaction)
-    {
-        return $this->checkout->get_cart_for_transaction($transaction);
-    }
-
-
-
-    /**
-     * get_cart_for_transaction
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    public function get_cart_for_transaction(EE_Transaction $transaction)
-    {
-        return $this->checkout->get_cart_for_transaction($transaction);
-    }
-
-
-
-    /**
-     * _get_transaction_and_cart_for_current_session
-     *    generates a new EE_Transaction object and adds it to the $_transaction property.
-     *
-     * @access private
-     * @return EE_Transaction
-     * @throws \EE_Error
-     */
-    private function _get_cart_for_current_session_and_setup_new_transaction()
-    {
-        //  if there's no transaction, then this is the FIRST visit to SPCO
-        // so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
-        $this->checkout->cart = $this->_get_cart_for_transaction(null);
-        // and then create a new transaction
-        $transaction = $this->_initialize_transaction();
-        // verify transaction
-        if ($transaction instanceof EE_Transaction) {
-            // save it so that we have an ID for other objects to use
-            $transaction->save();
-            // and save TXN data to the cart
-            $this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
-        } else {
-            EE_Error::add_error(__('A Valid Transaction could not be initialized.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
-        }
-        return $transaction;
-    }
-
-
-
-    /**
-     *    generates a new EE_Transaction object and adds it to the $_transaction property.
-     *
-     * @access private
-     * @return mixed EE_Transaction|NULL
-     */
-    private function _initialize_transaction()
-    {
-        try {
-            // ensure cart totals have been calculated
-            $this->checkout->cart->get_grand_total()->recalculate_total_including_taxes();
-            // grab the cart grand total
-            $cart_total = $this->checkout->cart->get_cart_grand_total();
-            // create new TXN
-            $transaction = EE_Transaction::new_instance(
-                array(
-                    'TXN_reg_steps' => $this->checkout->initialize_txn_reg_steps_array(),
-                    'TXN_total'     => $cart_total > 0 ? $cart_total : 0,
-                    'TXN_paid'      => 0,
-                    'STS_ID'        => EEM_Transaction::failed_status_code,
-                )
-            );
-            // save it so that we have an ID for other objects to use
-            $transaction->save();
-            // set cron job for following up on TXNs after their session has expired
-            EE_Cron_Tasks::schedule_expired_transaction_check(
-                EE_Registry::instance()->SSN->expiration() + 1,
-                $transaction->ID()
-            );
-            return $transaction;
-        } catch (Exception $e) {
-            EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
-        }
-        return null;
-    }
-
-
-
-    /**
-     * _get_registrations
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws \EventEspresso\core\exceptions\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, true);
-        // 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()
-                ) {
-                    $this->checkout->primary_revisit = true;
-                    break;
-                } else if ($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());
-                }
-                $this->checkout->set_reg_status_updated($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 \EventEspresso\core\exceptions\InvalidEntityException
-     * @throws \EE_Error
-     */
-    private function _initialize_registrations(EE_Transaction $transaction)
-    {
-        $att_nmbr = 0;
-        $registrations = array();
-        if ($transaction instanceof EE_Transaction) {
-            /** @type EE_Registration_Processor $registration_processor */
-            $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-            $this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
-            // now let's add the cart items to the $transaction
-            foreach ($this->checkout->cart->get_tickets() as $line_item) {
-                //do the following for each ticket of this type they selected
-                for ($x = 1; $x <= $line_item->quantity(); $x++) {
-                    $att_nmbr++;
-                    /** @var EventEspresso\core\services\commands\registration\CreateRegistrationCommand $CreateRegistrationCommand */
-                    $CreateRegistrationCommand = EE_Registry::instance()
-                                                            ->create(
-                                                                'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
-                                                                array(
-                                                                    $transaction,
-                                                                    $line_item,
-                                                                    $att_nmbr,
-                                                                    $this->checkout->total_ticket_count,
-                                                                )
-                                                            );
-                    // override capabilities for frontend registrations
-                    if ( ! is_admin()) {
-                        $CreateRegistrationCommand->setCapCheck(
-                            new PublicCapabilities('', 'create_new_registration')
-                        );
-                    }
-                    $registration = EE_Registry::instance()->BUS->execute($CreateRegistrationCommand);
-                    if ( ! $registration instanceof EE_Registration) {
-                        throw new InvalidEntityException($registration, 'EE_Registration');
-                    }
-                    $registrations[ $registration->ID() ] = $registration;
-                }
-            }
-            $registration_processor->fix_reg_final_price_rounding_issue($transaction);
-        }
-        return $registrations;
-    }
-
-
-
-    /**
-     * sorts registrations by REG_count
-     *
-     * @access public
-     * @param EE_Registration $reg_A
-     * @param EE_Registration $reg_B
-     * @return int
-     */
-    public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B)
-    {
-        // this shouldn't ever happen within the same TXN, but oh well
-        if ($reg_A->count() === $reg_B->count()) {
-            return 0;
-        }
-        return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
-    }
-
-
-
-    /**
-     *    _final_verifications
-     * just makes sure that everything is set up correctly before proceeding
-     *
-     * @access    private
-     * @return    bool
-     * @throws \EE_Error
-     */
-    private function _final_verifications()
-    {
-        // filter checkout
-        $this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___final_verifications__checkout', $this->checkout);
-        //verify that current step is still set correctly
-        if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
-            EE_Error::add_error(
-                __('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // if returning to SPCO, then verify that primary registrant is set
-        if ( ! empty($this->checkout->reg_url_link)) {
-            $valid_registrant = $this->checkout->transaction->primary_registration();
-            if ( ! $valid_registrant instanceof EE_Registration) {
-                EE_Error::add_error(
-                    __('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-            $valid_registrant = null;
-            foreach ($this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration) {
-                if (
-                    $registration instanceof EE_Registration
-                    && $registration->reg_url_link() === $this->checkout->reg_url_link
-                ) {
-                    $valid_registrant = $registration;
-                }
-            }
-            if ( ! $valid_registrant instanceof EE_Registration) {
-                // hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
-                if (EED_Single_Page_Checkout::$_checkout_verified) {
-                    // clear the session, mark the checkout as unverified, and try again
-                    EE_Registry::instance()->SSN->clear_session();
-                    EED_Single_Page_Checkout::$_initialized = false;
-                    EED_Single_Page_Checkout::$_checkout_verified = false;
-                    $this->_initialize();
-                    EE_Error::reset_notices();
-                    return false;
-                }
-                EE_Error::add_error(
-                    __('We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-        }
-        // now that things have been kinda sufficiently verified,
-        // let's add the checkout to the session so that's available other systems
-        EE_Registry::instance()->SSN->set_checkout($this->checkout);
-        return true;
-    }
-
-
-
-    /**
-     *    _initialize_reg_steps
-     * first makes sure that EE_Transaction_Processor::set_reg_step_initiated() is called as required
-     * then loops thru all of the active reg steps and calls the initialize_reg_step() method
-     *
-     * @access    private
-     * @param bool $reinitializing
-     * @throws \EE_Error
-     */
-    private function _initialize_reg_steps($reinitializing = false)
-    {
-        $this->checkout->set_reg_step_initiated($this->checkout->current_step);
-        // loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
-        foreach ($this->checkout->reg_steps as $reg_step) {
-            if ( ! $reg_step->initialize_reg_step()) {
-                // if not initialized then maybe this step is being removed...
-                if ( ! $reinitializing && $reg_step->is_current_step()) {
-                    // if it was the current step, then we need to start over here
-                    $this->_initialize_reg_steps(true);
-                    return;
-                }
-                continue;
-            }
-            // add css and JS for current step
-            $reg_step->enqueue_styles_and_scripts();
-            // i18n
-            $reg_step->translate_js_strings();
-            if ($reg_step->is_current_step()) {
-                // the text that appears on the reg step form submit button
-                $reg_step->set_submit_button_text();
-            }
-        }
-        // dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
-        do_action("AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}", $this->checkout->current_step);
-    }
-
-
-
-    /**
-     * _check_form_submission
-     *
-     * @access private
-     * @return boolean
-     */
-    private function _check_form_submission()
-    {
-        //does this request require the reg form to be generated ?
-        if ($this->checkout->generate_reg_form) {
-            // ever heard that song by Blue Rodeo ?
-            try {
-                $this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
-                // if not displaying a form, then check for form submission
-                if (
-                    $this->checkout->process_form_submission
-                    && $this->checkout->current_step->reg_form->was_submitted()
-                ) {
-                    // clear out any old data in case this step is being run again
-                    $this->checkout->current_step->set_valid_data(array());
-                    // capture submitted form data
-                    $this->checkout->current_step->reg_form->receive_form_submission(
-                        apply_filters('FHEE__Single_Page_Checkout___check_form_submission__request_params', EE_Registry::instance()->REQ->params(), $this->checkout)
-                    );
-                    // validate submitted form data
-                    if ( ! $this->checkout->continue_reg || ! $this->checkout->current_step->reg_form->is_valid()) {
-                        // thou shall not pass !!!
-                        $this->checkout->continue_reg = false;
-                        // any form validation errors?
-                        if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
-                            $submission_error_messages = array();
-                            // bad, bad, bad registrant
-                            foreach ($this->checkout->current_step->reg_form->get_validation_errors_accumulated() as $validation_error) {
-                                if ($validation_error instanceof EE_Validation_Error) {
-                                    $submission_error_messages[] = sprintf(
-                                        __('%s : %s', 'event_espresso'),
-                                        $validation_error->get_form_section()->html_label_text(),
-                                        $validation_error->getMessage()
-                                    );
-                                }
-                            }
-                            EE_Error::add_error(implode('<br />', $submission_error_messages), __FILE__, __FUNCTION__, __LINE__);
-                        }
-                        // well not really... what will happen is we'll just get redirected back to redo the current step
-                        $this->go_to_next_step();
-                        return false;
-                    }
-                }
-            } catch (EE_Error $e) {
-                $e->get_error();
-            }
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _process_action
-     *
-     * @access private
-     * @return void
-     * @throws \EE_Error
-     */
-    private function _process_form_action()
-    {
-        // what cha wanna do?
-        switch ($this->checkout->action) {
-            // AJAX next step reg form
-            case 'display_spco_reg_step' :
-                $this->checkout->redirect = false;
-                if (EE_Registry::instance()->REQ->ajax) {
-                    $this->checkout->json_response->set_reg_step_html($this->checkout->current_step->display_reg_form());
-                }
-                break;
-            default :
-                // meh... do one of those other steps first
-                if ( ! empty($this->checkout->action) && is_callable(array($this->checkout->current_step, $this->checkout->action))) {
-                    // dynamically creates hook point like: AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
-                    do_action("AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step);
-                    // call action on current step
-                    if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
-                        // good registrant, you get to proceed
-                        if (
-                            $this->checkout->current_step->success_message() !== ''
-                            && apply_filters(
-                                'FHEE__Single_Page_Checkout___process_form_action__display_success',
-                                false
-                            )
-                        ) {
-                            EE_Error::add_success(
-                                $this->checkout->current_step->success_message()
-                                . '<br />' . $this->checkout->next_step->_instructions()
-                            );
-                        }
-                        // pack it up, pack it in...
-                        $this->_setup_redirect();
-                    }
-                    // dynamically creates hook point like: AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
-                    do_action("AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step);
-                } else {
-                    EE_Error::add_error(
-                        sprintf(
-                            __('The requested form action "%s" does not exist for the current "%s" registration step.', 'event_espresso'),
-                            $this->checkout->action,
-                            $this->checkout->current_step->name()
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            // end default
-        }
-        // store our progress so far
-        $this->checkout->stash_transaction_and_checkout();
-        // advance to the next step! If you pass GO, collect $200
-        $this->go_to_next_step();
-    }
-
-
-
-    /**
-     *        add_styles_and_scripts
-     *
-     * @access        public
-     * @return        void
-     */
-    public function add_styles_and_scripts()
-    {
-        // i18n
-        $this->translate_js_strings();
-        if ($this->checkout->admin_request) {
-            add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
-        } else {
-            add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
-        }
-    }
-
-
-
-    /**
-     *        translate_js_strings
-     *
-     * @access        public
-     * @return        void
-     */
-    public function translate_js_strings()
-    {
-        EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
-        EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
-        EE_Registry::$i18n_js_strings['server_error'] = __('An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso');
-        EE_Registry::$i18n_js_strings['invalid_json_response'] = __('An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso');
-        EE_Registry::$i18n_js_strings['validation_error'] = __('There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.', 'event_espresso');
-        EE_Registry::$i18n_js_strings['invalid_payment_method'] = __('There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.', 'event_espresso');
-        EE_Registry::$i18n_js_strings['reg_step_error'] = __('This registration step could not be completed. Please refresh the page and try again.', 'event_espresso');
-        EE_Registry::$i18n_js_strings['invalid_coupon'] = __('We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.', 'event_espresso');
-        EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
-            __('Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.', 'event_espresso'),
-            '<br/>',
-            '<br/>'
-        );
-        EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
-        EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
-        EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
-        EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
-        EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
-            __(
-                '%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please except our apologies for any inconvenience this may have caused.%8$s',
-                'event_espresso'
-            ),
-            '<h4 class="important-notice">',
-            '</h4>',
-            '<br />',
-            '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
-            '">',
-            '</a>',
-            '</p>'
-        );
-        EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters('FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit', true);
-        EE_Registry::$i18n_js_strings['session_extension'] = absint(
-            apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS)
-        );
-        EE_Registry::$i18n_js_strings['session_expiration'] = gmdate(
-            'M d, Y H:i:s', EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)
-        );
-    }
-
-
-
-    /**
-     *    enqueue_styles_and_scripts
-     *
-     * @access        public
-     * @return        void
-     * @throws \EE_Error
-     */
-    public function enqueue_styles_and_scripts()
-    {
-        // load css
-        wp_register_style('single_page_checkout', SPCO_CSS_URL . 'single_page_checkout.css', array(), EVENT_ESPRESSO_VERSION);
-        wp_enqueue_style('single_page_checkout');
-        // load JS
-        wp_register_script('jquery_plugin', EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js', array('jquery'), '1.0.1', true);
-        wp_register_script('jquery_countdown', EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js', array('jquery_plugin'), '2.0.2', true);
-        wp_register_script('single_page_checkout', SPCO_JS_URL . 'single_page_checkout.js', array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'), EVENT_ESPRESSO_VERSION, true);
-        $this->checkout->registration_form->enqueue_js();
-        $this->checkout->current_step->reg_form->enqueue_js();
-        wp_enqueue_script('single_page_checkout');
-        /**
-         * global action hook for enqueueing styles and scripts with
-         * spco calls.
-         */
-        do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
-        /**
-         * dynamic action hook for enqueueing styles and scripts with spco calls.
-         * The hook will end up being something like AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
-         */
-        do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(), $this);
-    }
-
-
-
-    /**
-     *    display the Registration Single Page Checkout Form
-     *
-     * @access    private
-     * @return    void
-     * @throws \EE_Error
-     */
-    private function _display_spco_reg_form()
-    {
-        // if registering via the admin, just display the reg form for the current step
-        if ($this->checkout->admin_request) {
-            EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
-        } else {
-            // add powered by EE msg
-            add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
-            $empty_cart = count($this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)) < 1
-                ? true
-                : false;
-            EE_Registry::$i18n_js_strings['empty_cart'] = $empty_cart;
-            $cookies_not_set_msg = '';
-            if ($empty_cart && ! isset($_COOKIE['ee_cookie_test'])) {
-                $cookies_not_set_msg = apply_filters(
-                    'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
-                    sprintf(
-                        __(
-                            '%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s',
-                            'event_espresso'
-                        ),
-                        '<div class="ee-attention">',
-                        '</div>',
-                        '<h6 class="important-notice">',
-                        '</h6>',
-                        '<p>',
-                        '</p>',
-                        '<br />',
-                        '<a href="http://www.whatarecookies.com/enable.asp" target="_blank">',
-                        '</a>'
-                    )
-                );
-            }
-            $this->checkout->registration_form = new EE_Form_Section_Proper(
-                array(
-                    'name'            => 'single-page-checkout',
-                    'html_id'         => 'ee-single-page-checkout-dv',
-                    'layout_strategy' =>
-                        new EE_Template_Layout(
-                            array(
-                                'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
-                                'template_args'        => array(
-                                    'empty_cart'              => $empty_cart,
-                                    'revisit'                 => $this->checkout->revisit,
-                                    'reg_steps'               => $this->checkout->reg_steps,
-                                    'next_step'               => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
-                                        ? $this->checkout->next_step->slug()
-                                        : '',
-                                    'cancel_page_url'         => $this->checkout->cancel_page_url,
-                                    'empty_msg'               => apply_filters(
-                                        'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
-                                        sprintf(
-                                            __('You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
-                                                'event_espresso'),
-                                            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
-                                            '">',
-                                            '</a>'
-                                        )
-                                    ),
-                                    'cookies_not_set_msg'     => $cookies_not_set_msg,
-                                    'registration_time_limit' => $this->checkout->get_registration_time_limit(),
-                                    'session_expiration'      =>
-                                        date('M d, Y H:i:s', EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)),
-                                ),
-                            )
-                        ),
-                )
-            );
-            // load template and add to output sent that gets filtered into the_content()
-            EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html());
-        }
-    }
-
-
-
-    /**
-     *    add_extra_finalize_registration_inputs
-     *
-     * @access    public
-     * @param $next_step
-     * @internal  param string $label
-     * @return void
-     */
-    public function add_extra_finalize_registration_inputs($next_step)
-    {
-        if ($next_step === 'finalize_registration') {
-            echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
-        }
-    }
-
-
-
-    /**
-     *    display_registration_footer
-     *
-     * @access    public
-     * @return    string
-     */
-    public static function display_registration_footer()
-    {
-        if (
-        apply_filters(
-            'FHEE__EE_Front__Controller__show_reg_footer',
-            EE_Registry::instance()->CFG->admin->show_reg_footer
-        )
-        ) {
-            add_filter(
-                'FHEE__EEH_Template__powered_by_event_espresso__url',
-                function ($url) {
-                    return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
-                }
-            );
-            echo apply_filters(
-                'FHEE__EE_Front_Controller__display_registration_footer',
-                \EEH_Template::powered_by_event_espresso(
-                    '',
-                    'espresso-registration-footer-dv',
-                    array('utm_content' => 'registration_checkout')
-                )
-            );
-        }
-        return '';
-    }
-
-
-
-    /**
-     *    unlock_transaction
-     *
-     * @access    public
-     * @return    void
-     * @throws \EE_Error
-     */
-    public function unlock_transaction()
-    {
-        if ($this->checkout->transaction instanceof EE_Transaction) {
-            $this->checkout->transaction->unlock();
-        }
-    }
-
-
-
-    /**
-     *        _setup_redirect
-     *
-     * @access    private
-     * @return void
-     */
-    private function _setup_redirect()
-    {
-        if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
-            $this->checkout->redirect = true;
-            if (empty($this->checkout->redirect_url)) {
-                $this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
-            }
-            $this->checkout->redirect_url = apply_filters(
-                'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url',
-                $this->checkout->redirect_url,
-                $this->checkout
-            );
-        }
-    }
-
-
-
-    /**
-     *   handle ajax message responses and redirects
-     *
-     * @access public
-     * @return void
-     * @throws \EE_Error
-     */
-    public function go_to_next_step()
-    {
-        if (EE_Registry::instance()->REQ->ajax) {
-            // capture contents of output buffer we started earlier in the request, and insert into JSON response
-            $this->checkout->json_response->set_unexpected_errors(ob_get_clean());
-        }
-        $this->unlock_transaction();
-        // just return for these conditions
-        if (
-            $this->checkout->admin_request
-            || $this->checkout->action === 'redirect_form'
-            || $this->checkout->action === 'update_checkout'
-        ) {
-            return;
-        }
-        // AJAX response
-        $this->_handle_json_response();
-        // redirect to next step or the Thank You page
-        $this->_handle_html_redirects();
-        // hmmm... must be something wrong, so let's just display the form again !
-        $this->_display_spco_reg_form();
-    }
-
-
-
-    /**
-     *   _handle_json_response
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _handle_json_response()
-    {
-        // if this is an ajax request
-        if (EE_Registry::instance()->REQ->ajax) {
-            // DEBUG LOG
-            //$this->checkout->log(
-            //	__CLASS__, __FUNCTION__, __LINE__,
-            //	array(
-            //		'json_response_redirect_url' => $this->checkout->json_response->redirect_url(),
-            //		'redirect'                   => $this->checkout->redirect,
-            //		'continue_reg'               => $this->checkout->continue_reg,
-            //	)
-            //);
-            $this->checkout->json_response->set_registration_time_limit(
-                $this->checkout->get_registration_time_limit()
-            );
-            $this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
-            // just send the ajax (
-            $json_response = apply_filters(
-                'FHEE__EE_Single_Page_Checkout__JSON_response',
-                $this->checkout->json_response
-            );
-            echo $json_response;
-            exit();
-        }
-    }
-
-
-
-    /**
-     *   _handle_redirects
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _handle_html_redirects()
-    {
-        // going somewhere ?
-        if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
-            // store notices in a transient
-            EE_Error::get_notices(false, true, true);
-            // DEBUG LOG
-            //$this->checkout->log(
-            //	__CLASS__, __FUNCTION__, __LINE__,
-            //	array(
-            //		'headers_sent' => headers_sent(),
-            //		'redirect_url'     => $this->checkout->redirect_url,
-            //		'headers_list'    => headers_list(),
-            //	)
-            //);
-            wp_safe_redirect($this->checkout->redirect_url);
-            exit();
-        }
-    }
-
-
-
-    /**
-     *   set_checkout_anchor
-     *
-     * @access public
-     * @return void
-     */
-    public function set_checkout_anchor()
-    {
-        echo '<a id="checkout" style="float: left; margin-left: -999em;"></a>';
-    }
+	/**
+	 * $_initialized - has the SPCO controller already been initialized ?
+	 *
+	 * @access private
+	 * @var bool $_initialized
+	 */
+	private static $_initialized = false;
+
+
+	/**
+	 * $_checkout_verified - is the EE_Checkout verified as correct for this request ?
+	 *
+	 * @access private
+	 * @var bool $_valid_checkout
+	 */
+	private static $_checkout_verified = true;
+
+	/**
+	 *    $_reg_steps_array - holds initial array of reg steps
+	 *
+	 * @access private
+	 * @var array $_reg_steps_array
+	 */
+	private static $_reg_steps_array = array();
+
+	/**
+	 *    $checkout - EE_Checkout object for handling the properties of the current checkout process
+	 *
+	 * @access public
+	 * @var EE_Checkout $checkout
+	 */
+	public $checkout;
+
+
+
+	/**
+	 * @return EED_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)) {
+			// hook into the top of pre_get_posts to set the reg step routing, which gives other modules or plugins a chance to modify the reg steps, but just before the routes get called
+			add_action('pre_get_posts', array('EED_Single_Page_Checkout', 'load_reg_steps'), 1);
+			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', $ajax_action);
+		EED_Single_Page_Checkout::instance()->_initialize();
+	}
+
+
+
+	/**
+	 *    ajax display registration step
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function display_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('display_spco_reg_step');
+	}
+
+
+
+	/**
+	 *    ajax process registration step
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function process_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('process_reg_step');
+	}
+
+
+
+	/**
+	 *    ajax process registration step
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function update_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('update_reg_step');
+	}
+
+
+
+	/**
+	 *   update_checkout
+	 *
+	 * @access public
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	public static function update_checkout()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('update_checkout');
+	}
+
+
+
+	/**
+	 *    load_request_handler
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function load_request_handler()
+	{
+		// load core Request_Handler class
+		if ( ! isset(EE_Registry::instance()->REQ)) {
+			EE_Registry::instance()->load_core('Request_Handler');
+		}
+	}
+
+
+
+	/**
+	 *    set_definitions
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	public static function set_definitions()
+	{
+		define('SPCO_BASE_PATH', rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS);
+		define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
+		define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
+		define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
+		define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
+		define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
+		define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
+		EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
+			__('%1$sWe\'re sorry, but you\'re registration time has expired.%2$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 except our apologies for any inconvenience this may have caused.%8$s',
+				'event_espresso'),
+			'<h4 class="important-notice">',
+			'</h4>',
+			'<br />',
+			'<p>',
+			'<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+			'">',
+			'</a>',
+			'</p>'
+		);
+	}
+
+
+
+	/**
+	 * load_reg_steps
+	 * loads and instantiates each reg step based on the EE_Registry::instance()->CFG->registration->reg_steps array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return void
+	 */
+	public static function load_reg_steps()
+	{
+		static $reg_steps_loaded = false;
+		if ($reg_steps_loaded) {
+			return;
+		}
+		// filter list of reg_steps
+		$reg_steps_to_load = (array)apply_filters(
+			'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
+			EED_Single_Page_Checkout::get_reg_steps()
+		);
+		// sort by key (order)
+		ksort($reg_steps_to_load);
+		// loop through folders
+		foreach ($reg_steps_to_load as $order => $reg_step) {
+			// we need a
+			if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
+				// copy over to the reg_steps_array
+				EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
+				// register custom key route for each reg step
+				// ie: step=>"slug" - this is the entire reason we load the reg steps array now
+				EE_Config::register_route($reg_step['slug'], 'EED_Single_Page_Checkout', 'run', 'step');
+				// add AJAX or other hooks
+				if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
+					// setup autoloaders if necessary
+					if ( ! class_exists($reg_step['class_name'])) {
+						EEH_Autoloader::register_autoloaders_for_each_file_in_folder($reg_step['file_path'], true);
+					}
+					if (is_callable($reg_step['class_name'], 'set_hooks')) {
+						call_user_func(array($reg_step['class_name'], 'set_hooks'));
+					}
+				}
+			}
+		}
+		$reg_steps_loaded = true;
+	}
+
+
+
+	/**
+	 *    get_reg_steps
+	 *
+	 * @access    public
+	 * @return    array
+	 */
+	public static function get_reg_steps()
+	{
+		$reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
+		if (empty($reg_steps)) {
+			$reg_steps = array(
+				10  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
+					'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
+					'slug'       => 'attendee_information',
+					'has_hooks'  => false,
+				),
+				20  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
+					'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
+					'slug'       => 'registration_confirmation',
+					'has_hooks'  => false,
+				),
+				30  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
+					'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
+					'slug'       => 'payment_options',
+					'has_hooks'  => true,
+				),
+				999 => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
+					'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
+					'slug'       => 'finalize_registration',
+					'has_hooks'  => false,
+				),
+			);
+		}
+		return $reg_steps;
+	}
+
+
+
+	/**
+	 *    registration_checkout_for_admin
+	 *
+	 * @access    public
+	 * @return    string
+	 * @throws \EE_Error
+	 */
+	public static function registration_checkout_for_admin()
+	{
+		EED_Single_Page_Checkout::load_reg_steps();
+		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_reg_steps();
+		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
+		$current_request_uri = remove_query_arg(array_flip($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;
+	}
+
+
+
+	/**
+	 *    run
+	 *
+	 * @access    public
+	 * @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 {
+			$this->_verify_session();
+			// setup the EE_Checkout object
+			$this->checkout = $this->_initialize_checkout();
+			// filter checkout
+			$this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
+			// get the $_GET
+			$this->_get_request_vars();
+			if ($this->_block_bots()) {
+				return;
+			}
+			// filter continue_reg
+			$this->checkout->continue_reg = apply_filters('FHEE__EED_Single_Page_Checkout__init___continue_reg', true, $this->checkout);
+			// load the reg steps array
+			if ( ! $this->_load_and_instantiate_reg_steps()) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// set the current step
+			$this->checkout->set_current_step($this->checkout->step);
+			// and the next step
+			$this->checkout->set_next_step();
+			// verify that everything has been setup correctly
+			if ( ! ($this->_verify_transaction_and_get_registrations() && $this->_final_verifications())) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// lock the transaction
+			$this->checkout->transaction->lock();
+			// make sure all of our cached objects are added to their respective model entity mappers
+			$this->checkout->refresh_all_entities();
+			// set amount owing
+			$this->checkout->amount_owing = $this->checkout->transaction->remaining();
+			// initialize each reg step, which gives them the chance to potentially alter the process
+			$this->_initialize_reg_steps();
+			// DEBUG LOG
+			//$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
+			// get reg form
+			if( ! $this->_check_form_submission()) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// checkout the action!!!
+			$this->_process_form_action();
+			// add some style and make it dance
+			$this->add_styles_and_scripts();
+			// kk... SPCO has successfully run
+			EED_Single_Page_Checkout::$_initialized = true;
+			// set no cache headers and constants
+			EE_System::do_not_cache();
+			// add anchor
+			add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
+			// remove transaction lock
+			add_action('shutdown', array($this, 'unlock_transaction'), 1);
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		}
+	}
+
+
+
+	/**
+	 *    _verify_session
+	 * checks that the session is valid and not expired
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 */
+	private function _verify_session()
+	{
+		if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
+			throw new EE_Error(__('The EE_Session class could not be loaded.', 'event_espresso'));
+		}
+		// is session still valid ?
+		if (EE_Registry::instance()->SSN->expired() && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === '') {
+			$this->checkout = new EE_Checkout();
+			EE_Registry::instance()->SSN->reset_cart();
+			EE_Registry::instance()->SSN->reset_checkout();
+			EE_Registry::instance()->SSN->reset_transaction();
+			EE_Error::add_attention(EE_Registry::$i18n_js_strings['registration_expiration_notice'], __FILE__,
+				__FUNCTION__, __LINE__);
+			EE_Registry::instance()->SSN->reset_expired();
+		}
+	}
+
+
+
+	/**
+	 *    _initialize_checkout
+	 * loads and instantiates EE_Checkout
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return EE_Checkout
+	 */
+	private function _initialize_checkout()
+	{
+		// look in session for existing checkout
+		/** @type EE_Checkout $checkout */
+		$checkout = EE_Registry::instance()->SSN->checkout();
+		// verify
+		if ( ! $checkout instanceof EE_Checkout) {
+			// instantiate EE_Checkout object for handling the properties of the current checkout process
+			$checkout = EE_Registry::instance()->load_file(SPCO_INC_PATH, 'EE_Checkout', 'class', array(), false);
+		} else {
+			if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
+				$this->unlock_transaction();
+				wp_safe_redirect($checkout->redirect_url);
+				exit();
+			}
+		}
+		$checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
+		// verify again
+		if ( ! $checkout instanceof EE_Checkout) {
+			throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
+		}
+		// reset anything that needs a clean slate for each request
+		$checkout->reset_for_current_request();
+		return $checkout;
+	}
+
+
+
+	/**
+	 *    _get_request_vars
+	 *
+	 * @access    private
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	private function _get_request_vars()
+	{
+		// load classes
+		EED_Single_Page_Checkout::load_request_handler();
+		//make sure this request is marked as belonging to EE
+		EE_Registry::instance()->REQ->set_espresso_page(true);
+		// which step is being requested ?
+		$this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
+		// which step is being edited ?
+		$this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
+		// and what we're doing on the current step
+		$this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
+		// timestamp
+		$this->checkout->uts = EE_Registry::instance()->REQ->get('uts', 0);
+		// returning to edit ?
+		$this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
+		// or some other kind of revisit ?
+		$this->checkout->revisit = EE_Registry::instance()->REQ->get('revisit', false);
+		// and whether or not to generate a reg form for this request
+		$this->checkout->generate_reg_form = EE_Registry::instance()->REQ->get('generate_reg_form', true);        // TRUE 	FALSE
+		// and whether or not to process a reg form submission for this request
+		$this->checkout->process_form_submission = EE_Registry::instance()->REQ->get(
+			'process_form_submission',
+			$this->checkout->action === 'process_reg_step'
+		); // TRUE 	FALSE
+		$this->checkout->process_form_submission = $this->checkout->action !== 'display_spco_reg_step'
+			? $this->checkout->process_form_submission
+			: false;        // TRUE 	FALSE
+		// $this->_display_request_vars();
+	}
+
+
+
+	/**
+	 *  _display_request_vars
+	 *
+	 * @access    protected
+	 * @return    void
+	 */
+	protected function _display_request_vars()
+	{
+		if ( ! WP_DEBUG) {
+			return;
+		}
+		EEH_Debug_Tools::printr($_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    array
+	 */
+	private function _get_first_step()
+	{
+		$first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
+		return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
+	}
+
+
+
+	/**
+	 *    _load_and_instantiate_reg_steps
+	 *  instantiates each reg step based on the loaded reg_steps array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    bool
+	 */
+	private function _load_and_instantiate_reg_steps()
+	{
+		// have reg_steps already been instantiated ?
+		if (
+			empty($this->checkout->reg_steps)
+			|| apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
+		) {
+			// if not, then loop through raw reg steps array
+			foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
+				if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
+					return false;
+				}
+			}
+			EE_Registry::instance()->CFG->registration->skip_reg_confirmation = true;
+			EE_Registry::instance()->CFG->registration->reg_confirmation_last = true;
+			// skip the registration_confirmation page ?
+			if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
+				// just remove it from the reg steps array
+				$this->checkout->remove_reg_step('registration_confirmation', false);
+			} else if (
+				isset($this->checkout->reg_steps['registration_confirmation'])
+				&& EE_Registry::instance()->CFG->registration->reg_confirmation_last
+			) {
+				// set the order to something big like 100
+				$this->checkout->set_reg_step_order('registration_confirmation', 100);
+			}
+			// filter the array for good luck
+			$this->checkout->reg_steps = apply_filters(
+				'FHEE__Single_Page_Checkout__load_reg_steps__reg_steps',
+				$this->checkout->reg_steps
+			);
+			// finally re-sort based on the reg step class order properties
+			$this->checkout->sort_reg_steps();
+		} else {
+			foreach ($this->checkout->reg_steps as $reg_step) {
+				// set all current step stati to FALSE
+				$reg_step->set_is_current_step(false);
+			}
+		}
+		if (empty($this->checkout->reg_steps)) {
+			EE_Error::add_error(__('No Reg Steps were loaded..', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		// make reg step details available to JS
+		$this->checkout->set_reg_step_JSON_info();
+		return true;
+	}
+
+
+
+	/**
+	 *     _load_and_instantiate_reg_step
+	 *
+	 * @access    private
+	 * @param array $reg_step
+	 * @param int   $order
+	 * @return bool
+	 */
+	private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0)
+	{
+		// we need a file_path, class_name, and slug to add a reg step
+		if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
+			// if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
+			if (
+				$this->checkout->reg_url_link
+				&& $this->checkout->step !== $reg_step['slug']
+				&& $reg_step['slug'] !== 'finalize_registration'
+			) {
+				return true;
+			}
+			// instantiate step class using file path and class name
+			$reg_step_obj = EE_Registry::instance()->load_file(
+				$reg_step['file_path'],
+				$reg_step['class_name'],
+				'class',
+				$this->checkout,
+				false
+			);
+			// did we gets the goods ?
+			if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
+				// set reg step order based on config
+				$reg_step_obj->set_order($order);
+				// add instantiated reg step object to the master reg steps array
+				$this->checkout->add_reg_step($reg_step_obj);
+			} else {
+				EE_Error::add_error(
+					__('The current step could not be set.', 'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+				return false;
+			}
+		} else {
+			if (WP_DEBUG) {
+				EE_Error::add_error(
+					sprintf(
+						__('A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s', 'event_espresso'),
+						isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
+						isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
+						isset($reg_step['slug']) ? $reg_step['slug'] : '',
+						'<ul>',
+						'<li>',
+						'</li>',
+						'</ul>'
+					),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _verify_transaction_and_get_registrations
+	 *
+	 * @access private
+	 * @return bool
+	 */
+	private function _verify_transaction_and_get_registrations()
+	{
+		// was there already a valid transaction in the checkout from the session ?
+		if ( ! $this->checkout->transaction instanceof EE_Transaction) {
+			// get transaction from db or session
+			$this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
+				? $this->_get_transaction_and_cart_for_previous_visit()
+				: $this->_get_cart_for_current_session_and_setup_new_transaction();
+			if ( ! $this->checkout->transaction instanceof EE_Transaction) {
+				EE_Error::add_error(
+					__('Your Registration and Transaction information could not be retrieved from the db.',
+						'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+				$this->checkout->transaction = EE_Transaction::new_instance();
+				// add some style and make it dance
+				$this->add_styles_and_scripts();
+				EED_Single_Page_Checkout::$_initialized = true;
+				return false;
+			}
+			// and the registrations for the transaction
+			$this->_get_registrations($this->checkout->transaction);
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _get_transaction_and_cart_for_previous_visit
+	 *
+	 * @access private
+	 * @return mixed EE_Transaction|NULL
+	 */
+	private function _get_transaction_and_cart_for_previous_visit()
+	{
+		/** @var $TXN_model EEM_Transaction */
+		$TXN_model = EE_Registry::instance()->load_model('Transaction');
+		// because the reg_url_link is present in the request, this is a return visit to SPCO, so we'll get the transaction data from the db
+		$transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
+		// verify transaction
+		if ($transaction instanceof EE_Transaction) {
+			// and get the cart that was used for that transaction
+			$this->checkout->cart = $this->_get_cart_for_transaction($transaction);
+			return $transaction;
+		} else {
+			EE_Error::add_error(__('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
+			return null;
+		}
+	}
+
+
+
+	/**
+	 * _get_cart_for_transaction
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	private function _get_cart_for_transaction($transaction)
+	{
+		return $this->checkout->get_cart_for_transaction($transaction);
+	}
+
+
+
+	/**
+	 * get_cart_for_transaction
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	public function get_cart_for_transaction(EE_Transaction $transaction)
+	{
+		return $this->checkout->get_cart_for_transaction($transaction);
+	}
+
+
+
+	/**
+	 * _get_transaction_and_cart_for_current_session
+	 *    generates a new EE_Transaction object and adds it to the $_transaction property.
+	 *
+	 * @access private
+	 * @return EE_Transaction
+	 * @throws \EE_Error
+	 */
+	private function _get_cart_for_current_session_and_setup_new_transaction()
+	{
+		//  if there's no transaction, then this is the FIRST visit to SPCO
+		// so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
+		$this->checkout->cart = $this->_get_cart_for_transaction(null);
+		// and then create a new transaction
+		$transaction = $this->_initialize_transaction();
+		// verify transaction
+		if ($transaction instanceof EE_Transaction) {
+			// save it so that we have an ID for other objects to use
+			$transaction->save();
+			// and save TXN data to the cart
+			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
+		} else {
+			EE_Error::add_error(__('A Valid Transaction could not be initialized.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
+		}
+		return $transaction;
+	}
+
+
+
+	/**
+	 *    generates a new EE_Transaction object and adds it to the $_transaction property.
+	 *
+	 * @access private
+	 * @return mixed EE_Transaction|NULL
+	 */
+	private function _initialize_transaction()
+	{
+		try {
+			// ensure cart totals have been calculated
+			$this->checkout->cart->get_grand_total()->recalculate_total_including_taxes();
+			// grab the cart grand total
+			$cart_total = $this->checkout->cart->get_cart_grand_total();
+			// create new TXN
+			$transaction = EE_Transaction::new_instance(
+				array(
+					'TXN_reg_steps' => $this->checkout->initialize_txn_reg_steps_array(),
+					'TXN_total'     => $cart_total > 0 ? $cart_total : 0,
+					'TXN_paid'      => 0,
+					'STS_ID'        => EEM_Transaction::failed_status_code,
+				)
+			);
+			// save it so that we have an ID for other objects to use
+			$transaction->save();
+			// set cron job for following up on TXNs after their session has expired
+			EE_Cron_Tasks::schedule_expired_transaction_check(
+				EE_Registry::instance()->SSN->expiration() + 1,
+				$transaction->ID()
+			);
+			return $transaction;
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		}
+		return null;
+	}
+
+
+
+	/**
+	 * _get_registrations
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws \EventEspresso\core\exceptions\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, true);
+		// 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()
+				) {
+					$this->checkout->primary_revisit = true;
+					break;
+				} else if ($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());
+				}
+				$this->checkout->set_reg_status_updated($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 \EventEspresso\core\exceptions\InvalidEntityException
+	 * @throws \EE_Error
+	 */
+	private function _initialize_registrations(EE_Transaction $transaction)
+	{
+		$att_nmbr = 0;
+		$registrations = array();
+		if ($transaction instanceof EE_Transaction) {
+			/** @type EE_Registration_Processor $registration_processor */
+			$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+			$this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
+			// now let's add the cart items to the $transaction
+			foreach ($this->checkout->cart->get_tickets() as $line_item) {
+				//do the following for each ticket of this type they selected
+				for ($x = 1; $x <= $line_item->quantity(); $x++) {
+					$att_nmbr++;
+					/** @var EventEspresso\core\services\commands\registration\CreateRegistrationCommand $CreateRegistrationCommand */
+					$CreateRegistrationCommand = EE_Registry::instance()
+															->create(
+																'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
+																array(
+																	$transaction,
+																	$line_item,
+																	$att_nmbr,
+																	$this->checkout->total_ticket_count,
+																)
+															);
+					// override capabilities for frontend registrations
+					if ( ! is_admin()) {
+						$CreateRegistrationCommand->setCapCheck(
+							new PublicCapabilities('', 'create_new_registration')
+						);
+					}
+					$registration = EE_Registry::instance()->BUS->execute($CreateRegistrationCommand);
+					if ( ! $registration instanceof EE_Registration) {
+						throw new InvalidEntityException($registration, 'EE_Registration');
+					}
+					$registrations[ $registration->ID() ] = $registration;
+				}
+			}
+			$registration_processor->fix_reg_final_price_rounding_issue($transaction);
+		}
+		return $registrations;
+	}
+
+
+
+	/**
+	 * sorts registrations by REG_count
+	 *
+	 * @access public
+	 * @param EE_Registration $reg_A
+	 * @param EE_Registration $reg_B
+	 * @return int
+	 */
+	public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B)
+	{
+		// this shouldn't ever happen within the same TXN, but oh well
+		if ($reg_A->count() === $reg_B->count()) {
+			return 0;
+		}
+		return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
+	}
+
+
+
+	/**
+	 *    _final_verifications
+	 * just makes sure that everything is set up correctly before proceeding
+	 *
+	 * @access    private
+	 * @return    bool
+	 * @throws \EE_Error
+	 */
+	private function _final_verifications()
+	{
+		// filter checkout
+		$this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___final_verifications__checkout', $this->checkout);
+		//verify that current step is still set correctly
+		if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
+			EE_Error::add_error(
+				__('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// if returning to SPCO, then verify that primary registrant is set
+		if ( ! empty($this->checkout->reg_url_link)) {
+			$valid_registrant = $this->checkout->transaction->primary_registration();
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				EE_Error::add_error(
+					__('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+			$valid_registrant = null;
+			foreach ($this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration) {
+				if (
+					$registration instanceof EE_Registration
+					&& $registration->reg_url_link() === $this->checkout->reg_url_link
+				) {
+					$valid_registrant = $registration;
+				}
+			}
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				// hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
+				if (EED_Single_Page_Checkout::$_checkout_verified) {
+					// clear the session, mark the checkout as unverified, and try again
+					EE_Registry::instance()->SSN->clear_session();
+					EED_Single_Page_Checkout::$_initialized = false;
+					EED_Single_Page_Checkout::$_checkout_verified = false;
+					$this->_initialize();
+					EE_Error::reset_notices();
+					return false;
+				}
+				EE_Error::add_error(
+					__('We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+		}
+		// now that things have been kinda sufficiently verified,
+		// let's add the checkout to the session so that's available other systems
+		EE_Registry::instance()->SSN->set_checkout($this->checkout);
+		return true;
+	}
+
+
+
+	/**
+	 *    _initialize_reg_steps
+	 * first makes sure that EE_Transaction_Processor::set_reg_step_initiated() is called as required
+	 * then loops thru all of the active reg steps and calls the initialize_reg_step() method
+	 *
+	 * @access    private
+	 * @param bool $reinitializing
+	 * @throws \EE_Error
+	 */
+	private function _initialize_reg_steps($reinitializing = false)
+	{
+		$this->checkout->set_reg_step_initiated($this->checkout->current_step);
+		// loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
+		foreach ($this->checkout->reg_steps as $reg_step) {
+			if ( ! $reg_step->initialize_reg_step()) {
+				// if not initialized then maybe this step is being removed...
+				if ( ! $reinitializing && $reg_step->is_current_step()) {
+					// if it was the current step, then we need to start over here
+					$this->_initialize_reg_steps(true);
+					return;
+				}
+				continue;
+			}
+			// add css and JS for current step
+			$reg_step->enqueue_styles_and_scripts();
+			// i18n
+			$reg_step->translate_js_strings();
+			if ($reg_step->is_current_step()) {
+				// the text that appears on the reg step form submit button
+				$reg_step->set_submit_button_text();
+			}
+		}
+		// dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
+		do_action("AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}", $this->checkout->current_step);
+	}
+
+
+
+	/**
+	 * _check_form_submission
+	 *
+	 * @access private
+	 * @return boolean
+	 */
+	private function _check_form_submission()
+	{
+		//does this request require the reg form to be generated ?
+		if ($this->checkout->generate_reg_form) {
+			// ever heard that song by Blue Rodeo ?
+			try {
+				$this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
+				// if not displaying a form, then check for form submission
+				if (
+					$this->checkout->process_form_submission
+					&& $this->checkout->current_step->reg_form->was_submitted()
+				) {
+					// clear out any old data in case this step is being run again
+					$this->checkout->current_step->set_valid_data(array());
+					// capture submitted form data
+					$this->checkout->current_step->reg_form->receive_form_submission(
+						apply_filters('FHEE__Single_Page_Checkout___check_form_submission__request_params', EE_Registry::instance()->REQ->params(), $this->checkout)
+					);
+					// validate submitted form data
+					if ( ! $this->checkout->continue_reg || ! $this->checkout->current_step->reg_form->is_valid()) {
+						// thou shall not pass !!!
+						$this->checkout->continue_reg = false;
+						// any form validation errors?
+						if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
+							$submission_error_messages = array();
+							// bad, bad, bad registrant
+							foreach ($this->checkout->current_step->reg_form->get_validation_errors_accumulated() as $validation_error) {
+								if ($validation_error instanceof EE_Validation_Error) {
+									$submission_error_messages[] = sprintf(
+										__('%s : %s', 'event_espresso'),
+										$validation_error->get_form_section()->html_label_text(),
+										$validation_error->getMessage()
+									);
+								}
+							}
+							EE_Error::add_error(implode('<br />', $submission_error_messages), __FILE__, __FUNCTION__, __LINE__);
+						}
+						// well not really... what will happen is we'll just get redirected back to redo the current step
+						$this->go_to_next_step();
+						return false;
+					}
+				}
+			} catch (EE_Error $e) {
+				$e->get_error();
+			}
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _process_action
+	 *
+	 * @access private
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private function _process_form_action()
+	{
+		// what cha wanna do?
+		switch ($this->checkout->action) {
+			// AJAX next step reg form
+			case 'display_spco_reg_step' :
+				$this->checkout->redirect = false;
+				if (EE_Registry::instance()->REQ->ajax) {
+					$this->checkout->json_response->set_reg_step_html($this->checkout->current_step->display_reg_form());
+				}
+				break;
+			default :
+				// meh... do one of those other steps first
+				if ( ! empty($this->checkout->action) && is_callable(array($this->checkout->current_step, $this->checkout->action))) {
+					// dynamically creates hook point like: AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
+					do_action("AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step);
+					// call action on current step
+					if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
+						// good registrant, you get to proceed
+						if (
+							$this->checkout->current_step->success_message() !== ''
+							&& apply_filters(
+								'FHEE__Single_Page_Checkout___process_form_action__display_success',
+								false
+							)
+						) {
+							EE_Error::add_success(
+								$this->checkout->current_step->success_message()
+								. '<br />' . $this->checkout->next_step->_instructions()
+							);
+						}
+						// pack it up, pack it in...
+						$this->_setup_redirect();
+					}
+					// dynamically creates hook point like: AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
+					do_action("AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step);
+				} else {
+					EE_Error::add_error(
+						sprintf(
+							__('The requested form action "%s" does not exist for the current "%s" registration step.', 'event_espresso'),
+							$this->checkout->action,
+							$this->checkout->current_step->name()
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			// end default
+		}
+		// store our progress so far
+		$this->checkout->stash_transaction_and_checkout();
+		// advance to the next step! If you pass GO, collect $200
+		$this->go_to_next_step();
+	}
+
+
+
+	/**
+	 *        add_styles_and_scripts
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public function add_styles_and_scripts()
+	{
+		// i18n
+		$this->translate_js_strings();
+		if ($this->checkout->admin_request) {
+			add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
+		} else {
+			add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
+		}
+	}
+
+
+
+	/**
+	 *        translate_js_strings
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public function translate_js_strings()
+	{
+		EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
+		EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
+		EE_Registry::$i18n_js_strings['server_error'] = __('An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['invalid_json_response'] = __('An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['validation_error'] = __('There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['invalid_payment_method'] = __('There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['reg_step_error'] = __('This registration step could not be completed. Please refresh the page and try again.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['invalid_coupon'] = __('We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
+			__('Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.', 'event_espresso'),
+			'<br/>',
+			'<br/>'
+		);
+		EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
+		EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
+		EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
+		EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
+		EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
+			__(
+				'%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please except our apologies for any inconvenience this may have caused.%8$s',
+				'event_espresso'
+			),
+			'<h4 class="important-notice">',
+			'</h4>',
+			'<br />',
+			'<p>',
+			'<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+			'">',
+			'</a>',
+			'</p>'
+		);
+		EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters('FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit', true);
+		EE_Registry::$i18n_js_strings['session_extension'] = absint(
+			apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS)
+		);
+		EE_Registry::$i18n_js_strings['session_expiration'] = gmdate(
+			'M d, Y H:i:s', EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)
+		);
+	}
+
+
+
+	/**
+	 *    enqueue_styles_and_scripts
+	 *
+	 * @access        public
+	 * @return        void
+	 * @throws \EE_Error
+	 */
+	public function enqueue_styles_and_scripts()
+	{
+		// load css
+		wp_register_style('single_page_checkout', SPCO_CSS_URL . 'single_page_checkout.css', array(), EVENT_ESPRESSO_VERSION);
+		wp_enqueue_style('single_page_checkout');
+		// load JS
+		wp_register_script('jquery_plugin', EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js', array('jquery'), '1.0.1', true);
+		wp_register_script('jquery_countdown', EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js', array('jquery_plugin'), '2.0.2', true);
+		wp_register_script('single_page_checkout', SPCO_JS_URL . 'single_page_checkout.js', array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'), EVENT_ESPRESSO_VERSION, true);
+		$this->checkout->registration_form->enqueue_js();
+		$this->checkout->current_step->reg_form->enqueue_js();
+		wp_enqueue_script('single_page_checkout');
+		/**
+		 * global action hook for enqueueing styles and scripts with
+		 * spco calls.
+		 */
+		do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
+		/**
+		 * dynamic action hook for enqueueing styles and scripts with spco calls.
+		 * The hook will end up being something like AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
+		 */
+		do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(), $this);
+	}
+
+
+
+	/**
+	 *    display the Registration Single Page Checkout Form
+	 *
+	 * @access    private
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	private function _display_spco_reg_form()
+	{
+		// if registering via the admin, just display the reg form for the current step
+		if ($this->checkout->admin_request) {
+			EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
+		} else {
+			// add powered by EE msg
+			add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
+			$empty_cart = count($this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)) < 1
+				? true
+				: false;
+			EE_Registry::$i18n_js_strings['empty_cart'] = $empty_cart;
+			$cookies_not_set_msg = '';
+			if ($empty_cart && ! isset($_COOKIE['ee_cookie_test'])) {
+				$cookies_not_set_msg = apply_filters(
+					'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
+					sprintf(
+						__(
+							'%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s',
+							'event_espresso'
+						),
+						'<div class="ee-attention">',
+						'</div>',
+						'<h6 class="important-notice">',
+						'</h6>',
+						'<p>',
+						'</p>',
+						'<br />',
+						'<a href="http://www.whatarecookies.com/enable.asp" target="_blank">',
+						'</a>'
+					)
+				);
+			}
+			$this->checkout->registration_form = new EE_Form_Section_Proper(
+				array(
+					'name'            => 'single-page-checkout',
+					'html_id'         => 'ee-single-page-checkout-dv',
+					'layout_strategy' =>
+						new EE_Template_Layout(
+							array(
+								'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
+								'template_args'        => array(
+									'empty_cart'              => $empty_cart,
+									'revisit'                 => $this->checkout->revisit,
+									'reg_steps'               => $this->checkout->reg_steps,
+									'next_step'               => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
+										? $this->checkout->next_step->slug()
+										: '',
+									'cancel_page_url'         => $this->checkout->cancel_page_url,
+									'empty_msg'               => apply_filters(
+										'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
+										sprintf(
+											__('You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
+												'event_espresso'),
+											'<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+											'">',
+											'</a>'
+										)
+									),
+									'cookies_not_set_msg'     => $cookies_not_set_msg,
+									'registration_time_limit' => $this->checkout->get_registration_time_limit(),
+									'session_expiration'      =>
+										date('M d, Y H:i:s', EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)),
+								),
+							)
+						),
+				)
+			);
+			// load template and add to output sent that gets filtered into the_content()
+			EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html());
+		}
+	}
+
+
+
+	/**
+	 *    add_extra_finalize_registration_inputs
+	 *
+	 * @access    public
+	 * @param $next_step
+	 * @internal  param string $label
+	 * @return void
+	 */
+	public function add_extra_finalize_registration_inputs($next_step)
+	{
+		if ($next_step === 'finalize_registration') {
+			echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
+		}
+	}
+
+
+
+	/**
+	 *    display_registration_footer
+	 *
+	 * @access    public
+	 * @return    string
+	 */
+	public static function display_registration_footer()
+	{
+		if (
+		apply_filters(
+			'FHEE__EE_Front__Controller__show_reg_footer',
+			EE_Registry::instance()->CFG->admin->show_reg_footer
+		)
+		) {
+			add_filter(
+				'FHEE__EEH_Template__powered_by_event_espresso__url',
+				function ($url) {
+					return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
+				}
+			);
+			echo apply_filters(
+				'FHEE__EE_Front_Controller__display_registration_footer',
+				\EEH_Template::powered_by_event_espresso(
+					'',
+					'espresso-registration-footer-dv',
+					array('utm_content' => 'registration_checkout')
+				)
+			);
+		}
+		return '';
+	}
+
+
+
+	/**
+	 *    unlock_transaction
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	public function unlock_transaction()
+	{
+		if ($this->checkout->transaction instanceof EE_Transaction) {
+			$this->checkout->transaction->unlock();
+		}
+	}
+
+
+
+	/**
+	 *        _setup_redirect
+	 *
+	 * @access    private
+	 * @return void
+	 */
+	private function _setup_redirect()
+	{
+		if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
+			$this->checkout->redirect = true;
+			if (empty($this->checkout->redirect_url)) {
+				$this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
+			}
+			$this->checkout->redirect_url = apply_filters(
+				'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url',
+				$this->checkout->redirect_url,
+				$this->checkout
+			);
+		}
+	}
+
+
+
+	/**
+	 *   handle ajax message responses and redirects
+	 *
+	 * @access public
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	public function go_to_next_step()
+	{
+		if (EE_Registry::instance()->REQ->ajax) {
+			// capture contents of output buffer we started earlier in the request, and insert into JSON response
+			$this->checkout->json_response->set_unexpected_errors(ob_get_clean());
+		}
+		$this->unlock_transaction();
+		// just return for these conditions
+		if (
+			$this->checkout->admin_request
+			|| $this->checkout->action === 'redirect_form'
+			|| $this->checkout->action === 'update_checkout'
+		) {
+			return;
+		}
+		// AJAX response
+		$this->_handle_json_response();
+		// redirect to next step or the Thank You page
+		$this->_handle_html_redirects();
+		// hmmm... must be something wrong, so let's just display the form again !
+		$this->_display_spco_reg_form();
+	}
+
+
+
+	/**
+	 *   _handle_json_response
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _handle_json_response()
+	{
+		// if this is an ajax request
+		if (EE_Registry::instance()->REQ->ajax) {
+			// DEBUG LOG
+			//$this->checkout->log(
+			//	__CLASS__, __FUNCTION__, __LINE__,
+			//	array(
+			//		'json_response_redirect_url' => $this->checkout->json_response->redirect_url(),
+			//		'redirect'                   => $this->checkout->redirect,
+			//		'continue_reg'               => $this->checkout->continue_reg,
+			//	)
+			//);
+			$this->checkout->json_response->set_registration_time_limit(
+				$this->checkout->get_registration_time_limit()
+			);
+			$this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
+			// just send the ajax (
+			$json_response = apply_filters(
+				'FHEE__EE_Single_Page_Checkout__JSON_response',
+				$this->checkout->json_response
+			);
+			echo $json_response;
+			exit();
+		}
+	}
+
+
+
+	/**
+	 *   _handle_redirects
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _handle_html_redirects()
+	{
+		// going somewhere ?
+		if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
+			// store notices in a transient
+			EE_Error::get_notices(false, true, true);
+			// DEBUG LOG
+			//$this->checkout->log(
+			//	__CLASS__, __FUNCTION__, __LINE__,
+			//	array(
+			//		'headers_sent' => headers_sent(),
+			//		'redirect_url'     => $this->checkout->redirect_url,
+			//		'headers_list'    => headers_list(),
+			//	)
+			//);
+			wp_safe_redirect($this->checkout->redirect_url);
+			exit();
+		}
+	}
+
+
+
+	/**
+	 *   set_checkout_anchor
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function set_checkout_anchor()
+	{
+		echo '<a id="checkout" style="float: left; margin-left: -999em;"></a>';
+	}
 
 
 

Spacing +27 added lines, -27 removed lines

@@ -216,13 +216,13 @@ 
      */
     public static function set_definitions()
     {
-        define('SPCO_BASE_PATH', rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS);
-        define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
-        define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
-        define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
-        define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
-        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
-        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
+        define('SPCO_BASE_PATH', rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS).DS);
+        define('SPCO_CSS_URL', plugin_dir_url(__FILE__).'css'.DS);
+        define('SPCO_IMG_URL', plugin_dir_url(__FILE__).'img'.DS);
+        define('SPCO_JS_URL', plugin_dir_url(__FILE__).'js'.DS);
+        define('SPCO_INC_PATH', SPCO_BASE_PATH.'inc'.DS);
+        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH.'reg_steps'.DS);
+        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH.'templates'.DS);
         EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
         EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
             __('%1$sWe\'re sorry, but you\'re registration time has expired.%2$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please except our apologies for any inconvenience this may have caused.%8$s',
@@ -231,7 +231,7 @@ 
             '</h4>',
             '<br />',
             '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+            '<a href="'.get_post_type_archive_link('espresso_events').'" title="',
             '">',
             '</a>',
             '</p>'
@@ -255,7 +255,7 @@ 
             return;
         }
         // filter list of reg_steps
-        $reg_steps_to_load = (array)apply_filters(
+        $reg_steps_to_load = (array) apply_filters(
             'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
             EED_Single_Page_Checkout::get_reg_steps()
         );
@@ -299,25 +299,25 @@ 
         if (empty($reg_steps)) {
             $reg_steps = array(
                 10  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'attendee_information',
                     'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
                     'slug'       => 'attendee_information',
                     'has_hooks'  => false,
                 ),
                 20  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'registration_confirmation',
                     'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
                     'slug'       => 'registration_confirmation',
                     'has_hooks'  => false,
                 ),
                 30  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'payment_options',
                     'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
                     'slug'       => 'payment_options',
                     'has_hooks'  => true,
                 ),
                 999 => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'finalize_registration',
                     'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
                     'slug'       => 'finalize_registration',
                     'has_hooks'  => false,
@@ -499,7 +499,7 @@ 
             // DEBUG LOG
             //$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
             // get reg form
-            if( ! $this->_check_form_submission()) {
+            if ( ! $this->_check_form_submission()) {
                 EED_Single_Page_Checkout::$_initialized = true;
                 return;
             }
@@ -610,7 +610,7 @@ 
         // or some other kind of revisit ?
         $this->checkout->revisit = EE_Registry::instance()->REQ->get('revisit', false);
         // and whether or not to generate a reg form for this request
-        $this->checkout->generate_reg_form = EE_Registry::instance()->REQ->get('generate_reg_form', true);        // TRUE 	FALSE
+        $this->checkout->generate_reg_form = EE_Registry::instance()->REQ->get('generate_reg_form', true); // TRUE 	FALSE
         // and whether or not to process a reg form submission for this request
         $this->checkout->process_form_submission = EE_Registry::instance()->REQ->get(
             'process_form_submission',
@@ -618,7 +618,7 @@ 
         ); // TRUE 	FALSE
         $this->checkout->process_form_submission = $this->checkout->action !== 'display_spco_reg_step'
             ? $this->checkout->process_form_submission
-            : false;        // TRUE 	FALSE
+            : false; // TRUE 	FALSE
         // $this->_display_request_vars();
     }
 
@@ -1051,7 +1051,7 @@ 
                     if ( ! $registration instanceof EE_Registration) {
                         throw new InvalidEntityException($registration, 'EE_Registration');
                     }
-                    $registrations[ $registration->ID() ] = $registration;
+                    $registrations[$registration->ID()] = $registration;
                 }
             }
             $registration_processor->fix_reg_final_price_rounding_issue($transaction);
@@ -1281,7 +1281,7 @@ 
                         ) {
                             EE_Error::add_success(
                                 $this->checkout->current_step->success_message()
-                                . '<br />' . $this->checkout->next_step->_instructions()
+                                . '<br />'.$this->checkout->next_step->_instructions()
                             );
                         }
                         // pack it up, pack it in...
@@ -1378,7 +1378,7 @@ 
             '</h4>',
             '<br />',
             '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+            '<a href="'.get_post_type_archive_link('espresso_events').'" title="',
             '">',
             '</a>',
             '</p>'
@@ -1404,12 +1404,12 @@ 
     public function enqueue_styles_and_scripts()
     {
         // load css
-        wp_register_style('single_page_checkout', SPCO_CSS_URL . 'single_page_checkout.css', array(), EVENT_ESPRESSO_VERSION);
+        wp_register_style('single_page_checkout', SPCO_CSS_URL.'single_page_checkout.css', array(), EVENT_ESPRESSO_VERSION);
         wp_enqueue_style('single_page_checkout');
         // load JS
-        wp_register_script('jquery_plugin', EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js', array('jquery'), '1.0.1', true);
-        wp_register_script('jquery_countdown', EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js', array('jquery_plugin'), '2.0.2', true);
-        wp_register_script('single_page_checkout', SPCO_JS_URL . 'single_page_checkout.js', array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'), EVENT_ESPRESSO_VERSION, true);
+        wp_register_script('jquery_plugin', EE_THIRD_PARTY_URL.'jquery	.plugin.min.js', array('jquery'), '1.0.1', true);
+        wp_register_script('jquery_countdown', EE_THIRD_PARTY_URL.'jquery	.countdown.min.js', array('jquery_plugin'), '2.0.2', true);
+        wp_register_script('single_page_checkout', SPCO_JS_URL.'single_page_checkout.js', array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'), EVENT_ESPRESSO_VERSION, true);
         $this->checkout->registration_form->enqueue_js();
         $this->checkout->current_step->reg_form->enqueue_js();
         wp_enqueue_script('single_page_checkout');
@@ -1422,7 +1422,7 @@ 
          * 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(), $this);
+        do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__'.$this->checkout->current_step->slug(), $this);
     }
 
 
@@ -1474,7 +1474,7 @@ 
                     'layout_strategy' =>
                         new EE_Template_Layout(
                             array(
-                                'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
+                                'layout_template_file' => SPCO_TEMPLATES_PATH.'registration_page_wrapper.template.php',
                                 'template_args'        => array(
                                     'empty_cart'              => $empty_cart,
                                     'revisit'                 => $this->checkout->revisit,
@@ -1488,7 +1488,7 @@ 
                                         sprintf(
                                             __('You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
                                                 'event_espresso'),
-                                            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+                                            '<a href="'.get_post_type_archive_link('espresso_events').'" title="',
                                             '">',
                                             '</a>'
                                         )
@@ -1542,7 +1542,7 @@ 
         ) {
             add_filter(
                 'FHEE__EEH_Template__powered_by_event_espresso__url',
-                function ($url) {
+                function($url) {
                     return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
                 }
             );

core/services/assets/Registry.php

Indentation +156 added lines, -156 removed lines

@@ -16,164 +16,164 @@
 class Registry
 {
 
-    /**
-     * This holds the jsdata data object that will be exposed on pages that enqueue the `eejs-core` script.
-     * @var array
-     */
-    protected $jsdata = array();
-
-
-    /**
-     * Registry constructor.
-     * Hooking into WP actions for script registry.
-     */
-    public function __construct()
-    {
-        add_action('wp_enqueue_scripts', array($this, 'scripts'), 100);
-        add_action('admin_enqueue_scripts', array($this, 'scripts'), 100);
-    }
-
-
-    /**
-     * Callback for the WP script actions.
-     * Used to register globally accessible core scripts.
-     * Also used to add the eejs.data object to the source for any js having eejs-core as a dependency.
-     */
-    public function scripts()
-    {
-        wp_register_script(
-            'eejs-core',
-            EE_PLUGIN_DIR_URL . 'core/services/assets/core_assets/eejs-core.js',
-            array(),
-            espresso_version(),
-            true
-        );
-        wp_localize_script('eejs-core', 'eejs', array('data'=>$this->jsdata));
-    }
-
-
-    /**
-     * Used to add data to eejs.data object.
-     *
-     * Note:  Overriding existing data is not allowed.
-     *
-     * Data will be accessible as a javascript object when you list `eejs-core` as a dependency for your javascript.
-     * If the data you add is something like this:
-     *
-     * $this->addData( 'my_plugin_data', array( 'foo' => 'gar' ) );
-     *
-     * It will be exposed in the page source as:
-     *
-     * eejs.data.my_plugin_data.foo == gar
-     *
-     * @param string $key          Key used to access your data
-     * @param string|array $value  Value to attach to key
-     * @throws \InvalidArgumentException
-     */
-    public function addData($key, $value)
-    {
-        if ($this->verifyDataNotExisting($key)) {
-            $this->jsdata[$key] = $value;
-        }
-    }
-
-
-    /**
-     * Similar to addData except this allows for users to push values to an existing key where the values on key are
-     * elements in an array.
-     *
-     * When you use this method, the value you include will be appended to the end of an array on $key.
-     *
-     * So if the $key was 'test' and you added a value of 'my_data' then it would be represented in the javascript object
-     * like this,
-     *
-     * eejs.data.test = [
-     *     my_data,
-     * ]
-     *
-     * If there has already been a scalar value attached to the data object given key, then
-     * this will throw an exception.
-     *
-     * @param string $key          Key to attach data to.
-     * @param string|array $value  Value being registered.
-     * @throws InvalidArgumentException
-     */
-    public function pushData($key, $value)
-    {
-        if (isset($this->jsdata[$key])
-            && ! is_array($this->jsdata[$key])
-        ) {
-            throw new invalidArgumentException(
-                sprintf(
-                    __(
-                        'The value for %1$s is already set and it is not an array. The %2$s method can only be used to
+	/**
+	 * This holds the jsdata data object that will be exposed on pages that enqueue the `eejs-core` script.
+	 * @var array
+	 */
+	protected $jsdata = array();
+
+
+	/**
+	 * Registry constructor.
+	 * Hooking into WP actions for script registry.
+	 */
+	public function __construct()
+	{
+		add_action('wp_enqueue_scripts', array($this, 'scripts'), 100);
+		add_action('admin_enqueue_scripts', array($this, 'scripts'), 100);
+	}
+
+
+	/**
+	 * Callback for the WP script actions.
+	 * Used to register globally accessible core scripts.
+	 * Also used to add the eejs.data object to the source for any js having eejs-core as a dependency.
+	 */
+	public function scripts()
+	{
+		wp_register_script(
+			'eejs-core',
+			EE_PLUGIN_DIR_URL . 'core/services/assets/core_assets/eejs-core.js',
+			array(),
+			espresso_version(),
+			true
+		);
+		wp_localize_script('eejs-core', 'eejs', array('data'=>$this->jsdata));
+	}
+
+
+	/**
+	 * Used to add data to eejs.data object.
+	 *
+	 * Note:  Overriding existing data is not allowed.
+	 *
+	 * Data will be accessible as a javascript object when you list `eejs-core` as a dependency for your javascript.
+	 * If the data you add is something like this:
+	 *
+	 * $this->addData( 'my_plugin_data', array( 'foo' => 'gar' ) );
+	 *
+	 * It will be exposed in the page source as:
+	 *
+	 * eejs.data.my_plugin_data.foo == gar
+	 *
+	 * @param string $key          Key used to access your data
+	 * @param string|array $value  Value to attach to key
+	 * @throws \InvalidArgumentException
+	 */
+	public function addData($key, $value)
+	{
+		if ($this->verifyDataNotExisting($key)) {
+			$this->jsdata[$key] = $value;
+		}
+	}
+
+
+	/**
+	 * Similar to addData except this allows for users to push values to an existing key where the values on key are
+	 * elements in an array.
+	 *
+	 * When you use this method, the value you include will be appended to the end of an array on $key.
+	 *
+	 * So if the $key was 'test' and you added a value of 'my_data' then it would be represented in the javascript object
+	 * like this,
+	 *
+	 * eejs.data.test = [
+	 *     my_data,
+	 * ]
+	 *
+	 * If there has already been a scalar value attached to the data object given key, then
+	 * this will throw an exception.
+	 *
+	 * @param string $key          Key to attach data to.
+	 * @param string|array $value  Value being registered.
+	 * @throws InvalidArgumentException
+	 */
+	public function pushData($key, $value)
+	{
+		if (isset($this->jsdata[$key])
+			&& ! is_array($this->jsdata[$key])
+		) {
+			throw new invalidArgumentException(
+				sprintf(
+					__(
+						'The value for %1$s is already set and it is not an array. The %2$s method can only be used to
                          push values to this data element when it is an array.',
-                        'event_espresso'
-                    ),
-                    $key,
-                    __METHOD__
-                )
-            );
-        }
-
-        $this->jsdata[$key][] = $value;
-    }
-
-
-    /**
-     * Retrieve registered data.
-     *
-     * @param string $key           Name of key to attach data to.
-     * @return mixed                If there is no for the given key, then false is returned.
-     */
-    public function getData($key)
-    {
-        return isset($this->jsdata[$key])
-            ? $this->jsdata[$key]
-            : false;
-    }
-
-
-
-
-    /**
-     * Verifies whether the given data exists already on the jsdata array.
-     *
-     * Overriding data is not allowed.
-     *
-     * @param string       $key          Index for data.
-     * @return bool        If valid then return true.
-     * @throws InvalidArgumentException if data already exists.
-     */
-    protected function verifyDataNotExisting($key)
-    {
-        if (isset($this->jsdata[$key])) {
-            if (is_array($this->jsdata[$key])) {
-                throw new InvalidArgumentException(
-                    sprintf(
-                        __(
-                            'The value for %1$s already exists in the Registry::eejs object.
+						'event_espresso'
+					),
+					$key,
+					__METHOD__
+				)
+			);
+		}
+
+		$this->jsdata[$key][] = $value;
+	}
+
+
+	/**
+	 * Retrieve registered data.
+	 *
+	 * @param string $key           Name of key to attach data to.
+	 * @return mixed                If there is no for the given key, then false is returned.
+	 */
+	public function getData($key)
+	{
+		return isset($this->jsdata[$key])
+			? $this->jsdata[$key]
+			: false;
+	}
+
+
+
+
+	/**
+	 * Verifies whether the given data exists already on the jsdata array.
+	 *
+	 * Overriding data is not allowed.
+	 *
+	 * @param string       $key          Index for data.
+	 * @return bool        If valid then return true.
+	 * @throws InvalidArgumentException if data already exists.
+	 */
+	protected function verifyDataNotExisting($key)
+	{
+		if (isset($this->jsdata[$key])) {
+			if (is_array($this->jsdata[$key])) {
+				throw new InvalidArgumentException(
+					sprintf(
+						__(
+							'The value for %1$s already exists in the Registry::eejs object.
                             Overrides are not allowed. Since the value of this data is an array, you may want to use the
                             %2$s method to push your value to the array.',
-                            'event_espresso'
-                        ),
-                        $key,
-                        'pushData()'
-                    )
-                );
-            } else {
-                throw new InvalidArgumentException(
-                    sprintf(
-                        __(
-                            'The value for %1$s already exists in the Registry::eejs object. Overrides are not
+							'event_espresso'
+						),
+						$key,
+						'pushData()'
+					)
+				);
+			} else {
+				throw new InvalidArgumentException(
+					sprintf(
+						__(
+							'The value for %1$s already exists in the Registry::eejs object. Overrides are not
                             allowed.  Consider attaching your value to a different key',
-                            'event_espresso'
-                        ),
-                        $key
-                    )
-                );
-            }
-        }
-        return true;
-    }
+							'event_espresso'
+						),
+						$key
+					)
+				);
+			}
+		}
+		return true;
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -43,7 +43,7 @@
     {
         wp_register_script(
             'eejs-core',
-            EE_PLUGIN_DIR_URL . 'core/services/assets/core_assets/eejs-core.js',
+            EE_PLUGIN_DIR_URL.'core/services/assets/core_assets/eejs-core.js',
             array(),
             espresso_version(),
             true

espresso.php

Indentation +215 added lines, -215 removed lines

@@ -1,5 +1,5 @@ 
 <?php if ( ! defined('ABSPATH')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 /*
   Plugin Name:		Event Espresso
@@ -40,239 +40,239 @@ 
  * @since            4.0
  */
 if (function_exists('espresso_version')) {
-    /**
-     *    espresso_duplicate_plugin_error
-     *    displays if more than one version of EE is activated at the same time
-     */
-    function espresso_duplicate_plugin_error()
-    {
-        ?>
+	/**
+	 *    espresso_duplicate_plugin_error
+	 *    displays if more than one version of EE is activated at the same time
+	 */
+	function espresso_duplicate_plugin_error()
+	{
+		?>
         <div class="error">
             <p>
                 <?php echo esc_html__(
-                        'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
-                        'event_espresso'
-                ); ?>
+						'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
+						'event_espresso'
+				); ?>
             </p>
         </div>
         <?php
-        espresso_deactivate_plugin(plugin_basename(__FILE__));
-    }
+		espresso_deactivate_plugin(plugin_basename(__FILE__));
+	}
 
-    add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
+	add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
 } else {
-    define('EE_MIN_PHP_VER_REQUIRED', '5.3.9');
-    if ( ! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
-        /**
-         * espresso_minimum_php_version_error
-         *
-         * @return void
-         */
-        function espresso_minimum_php_version_error()
-        {
-            ?>
+	define('EE_MIN_PHP_VER_REQUIRED', '5.3.9');
+	if ( ! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
+		/**
+		 * espresso_minimum_php_version_error
+		 *
+		 * @return void
+		 */
+		function espresso_minimum_php_version_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    printf(
-                            esc_html__(
-                                    'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
-                                    'event_espresso'
-                            ),
-                            EE_MIN_PHP_VER_REQUIRED,
-                            PHP_VERSION,
-                            '<br/>',
-                            '<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
-                    );
-                    ?>
+					printf(
+							esc_html__(
+									'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
+									'event_espresso'
+							),
+							EE_MIN_PHP_VER_REQUIRED,
+							PHP_VERSION,
+							'<br/>',
+							'<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
+					);
+					?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
 
-        add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
-    } else {
-        /**
-         * espresso_version
-         * Returns the plugin version
-         *
-         * @return string
-         */
-        function espresso_version()
-        {
-            return apply_filters('FHEE__espresso__espresso_version', '4.9.24.rc.015');
-        }
+		add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
+	} else {
+		/**
+		 * espresso_version
+		 * Returns the plugin version
+		 *
+		 * @return string
+		 */
+		function espresso_version()
+		{
+			return apply_filters('FHEE__espresso__espresso_version', '4.9.24.rc.015');
+		}
 
-        // define versions
-        define('EVENT_ESPRESSO_VERSION', espresso_version());
-        define('EE_MIN_WP_VER_REQUIRED', '4.1');
-        define('EE_MIN_WP_VER_RECOMMENDED', '4.4.2');
-        define('EE_MIN_PHP_VER_RECOMMENDED', '5.4.44');
-        define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
-        //used to be DIRECTORY_SEPARATOR, but that caused issues on windows
-        if ( ! defined('DS')) {
-            define('DS', '/');
-        }
-        if ( ! defined('PS')) {
-            define('PS', PATH_SEPARATOR);
-        }
-        if ( ! defined('SP')) {
-            define('SP', ' ');
-        }
-        if ( ! defined('EENL')) {
-            define('EENL', "\n");
-        }
-        define('EE_SUPPORT_EMAIL', 'support@eventespresso.com');
-        // define the plugin directory and URL
-        define('EE_PLUGIN_BASENAME', plugin_basename(EVENT_ESPRESSO_MAIN_FILE));
-        define('EE_PLUGIN_DIR_PATH', plugin_dir_path(EVENT_ESPRESSO_MAIN_FILE));
-        define('EE_PLUGIN_DIR_URL', plugin_dir_url(EVENT_ESPRESSO_MAIN_FILE));
-        // main root folder paths
-        define('EE_ADMIN_PAGES', EE_PLUGIN_DIR_PATH . 'admin_pages' . DS);
-        define('EE_CORE', EE_PLUGIN_DIR_PATH . 'core' . DS);
-        define('EE_MODULES', EE_PLUGIN_DIR_PATH . 'modules' . DS);
-        define('EE_PUBLIC', EE_PLUGIN_DIR_PATH . 'public' . DS);
-        define('EE_SHORTCODES', EE_PLUGIN_DIR_PATH . 'shortcodes' . DS);
-        define('EE_WIDGETS', EE_PLUGIN_DIR_PATH . 'widgets' . DS);
-        define('EE_PAYMENT_METHODS', EE_PLUGIN_DIR_PATH . 'payment_methods' . DS);
-        define('EE_CAFF_PATH', EE_PLUGIN_DIR_PATH . 'caffeinated' . DS);
-        // core system paths
-        define('EE_ADMIN', EE_CORE . 'admin' . DS);
-        define('EE_CPTS', EE_CORE . 'CPTs' . DS);
-        define('EE_CLASSES', EE_CORE . 'db_classes' . DS);
-        define('EE_INTERFACES', EE_CORE . 'interfaces' . DS);
-        define('EE_BUSINESS', EE_CORE . 'business' . DS);
-        define('EE_MODELS', EE_CORE . 'db_models' . DS);
-        define('EE_HELPERS', EE_CORE . 'helpers' . DS);
-        define('EE_LIBRARIES', EE_CORE . 'libraries' . DS);
-        define('EE_TEMPLATES', EE_CORE . 'templates' . DS);
-        define('EE_THIRD_PARTY', EE_CORE . 'third_party_libs' . DS);
-        define('EE_GLOBAL_ASSETS', EE_TEMPLATES . 'global_assets' . DS);
-        define('EE_FORM_SECTIONS', EE_LIBRARIES . 'form_sections' . DS);
-        // gateways
-        define('EE_GATEWAYS', EE_MODULES . 'gateways' . DS);
-        define('EE_GATEWAYS_URL', EE_PLUGIN_DIR_URL . 'modules' . DS . 'gateways' . DS);
-        // asset URL paths
-        define('EE_TEMPLATES_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'templates' . DS);
-        define('EE_GLOBAL_ASSETS_URL', EE_TEMPLATES_URL . 'global_assets' . DS);
-        define('EE_IMAGES_URL', EE_GLOBAL_ASSETS_URL . 'images' . DS);
-        define('EE_THIRD_PARTY_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'third_party_libs' . DS);
-        define('EE_HELPERS_ASSETS', EE_PLUGIN_DIR_URL . 'core/helpers/assets/');
-        define('EE_LIBRARIES_URL', EE_PLUGIN_DIR_URL . 'core/libraries/');
-        // define upload paths
-        $uploads = wp_upload_dir();
-        // define the uploads directory and URL
-        define('EVENT_ESPRESSO_UPLOAD_DIR', $uploads['basedir'] . DS . 'espresso' . DS);
-        define('EVENT_ESPRESSO_UPLOAD_URL', $uploads['baseurl'] . DS . 'espresso' . DS);
-        // define the templates directory and URL
-        define('EVENT_ESPRESSO_TEMPLATE_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'templates' . DS);
-        define('EVENT_ESPRESSO_TEMPLATE_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'templates' . DS);
-        // define the gateway directory and URL
-        define('EVENT_ESPRESSO_GATEWAY_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'gateways' . DS);
-        define('EVENT_ESPRESSO_GATEWAY_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'gateways' . DS);
-        // languages folder/path
-        define('EE_LANGUAGES_SAFE_LOC', '..' . DS . 'uploads' . DS . 'espresso' . DS . 'languages' . DS);
-        define('EE_LANGUAGES_SAFE_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'languages' . DS);
-        //check for dompdf fonts in uploads
-        if (file_exists(EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS)) {
-            define('DOMPDF_FONT_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS);
-        }
-        //ajax constants
-        define(
-                'EE_FRONT_AJAX',
-                isset($_REQUEST['ee_front_ajax']) || isset($_REQUEST['data']['ee_front_ajax']) ? true : false
-        );
-        define(
-                'EE_ADMIN_AJAX',
-                isset($_REQUEST['ee_admin_ajax']) || isset($_REQUEST['data']['ee_admin_ajax']) ? true : false
-        );
-        //just a handy constant occasionally needed for finding values representing infinity in the DB
-        //you're better to use this than its straight value (currently -1) in case you ever
-        //want to change its default value! or find when -1 means infinity
-        define('EE_INF_IN_DB', -1);
-        define('EE_INF', INF > (float)PHP_INT_MAX ? INF : PHP_INT_MAX);
-        define('EE_DEBUG', false);
-        /**
-         *    espresso_plugin_activation
-         *    adds a wp-option to indicate that EE has been activated via the WP admin plugins page
-         */
-        function espresso_plugin_activation()
-        {
-            update_option('ee_espresso_activation', true);
-        }
+		// define versions
+		define('EVENT_ESPRESSO_VERSION', espresso_version());
+		define('EE_MIN_WP_VER_REQUIRED', '4.1');
+		define('EE_MIN_WP_VER_RECOMMENDED', '4.4.2');
+		define('EE_MIN_PHP_VER_RECOMMENDED', '5.4.44');
+		define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
+		//used to be DIRECTORY_SEPARATOR, but that caused issues on windows
+		if ( ! defined('DS')) {
+			define('DS', '/');
+		}
+		if ( ! defined('PS')) {
+			define('PS', PATH_SEPARATOR);
+		}
+		if ( ! defined('SP')) {
+			define('SP', ' ');
+		}
+		if ( ! defined('EENL')) {
+			define('EENL', "\n");
+		}
+		define('EE_SUPPORT_EMAIL', 'support@eventespresso.com');
+		// define the plugin directory and URL
+		define('EE_PLUGIN_BASENAME', plugin_basename(EVENT_ESPRESSO_MAIN_FILE));
+		define('EE_PLUGIN_DIR_PATH', plugin_dir_path(EVENT_ESPRESSO_MAIN_FILE));
+		define('EE_PLUGIN_DIR_URL', plugin_dir_url(EVENT_ESPRESSO_MAIN_FILE));
+		// main root folder paths
+		define('EE_ADMIN_PAGES', EE_PLUGIN_DIR_PATH . 'admin_pages' . DS);
+		define('EE_CORE', EE_PLUGIN_DIR_PATH . 'core' . DS);
+		define('EE_MODULES', EE_PLUGIN_DIR_PATH . 'modules' . DS);
+		define('EE_PUBLIC', EE_PLUGIN_DIR_PATH . 'public' . DS);
+		define('EE_SHORTCODES', EE_PLUGIN_DIR_PATH . 'shortcodes' . DS);
+		define('EE_WIDGETS', EE_PLUGIN_DIR_PATH . 'widgets' . DS);
+		define('EE_PAYMENT_METHODS', EE_PLUGIN_DIR_PATH . 'payment_methods' . DS);
+		define('EE_CAFF_PATH', EE_PLUGIN_DIR_PATH . 'caffeinated' . DS);
+		// core system paths
+		define('EE_ADMIN', EE_CORE . 'admin' . DS);
+		define('EE_CPTS', EE_CORE . 'CPTs' . DS);
+		define('EE_CLASSES', EE_CORE . 'db_classes' . DS);
+		define('EE_INTERFACES', EE_CORE . 'interfaces' . DS);
+		define('EE_BUSINESS', EE_CORE . 'business' . DS);
+		define('EE_MODELS', EE_CORE . 'db_models' . DS);
+		define('EE_HELPERS', EE_CORE . 'helpers' . DS);
+		define('EE_LIBRARIES', EE_CORE . 'libraries' . DS);
+		define('EE_TEMPLATES', EE_CORE . 'templates' . DS);
+		define('EE_THIRD_PARTY', EE_CORE . 'third_party_libs' . DS);
+		define('EE_GLOBAL_ASSETS', EE_TEMPLATES . 'global_assets' . DS);
+		define('EE_FORM_SECTIONS', EE_LIBRARIES . 'form_sections' . DS);
+		// gateways
+		define('EE_GATEWAYS', EE_MODULES . 'gateways' . DS);
+		define('EE_GATEWAYS_URL', EE_PLUGIN_DIR_URL . 'modules' . DS . 'gateways' . DS);
+		// asset URL paths
+		define('EE_TEMPLATES_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'templates' . DS);
+		define('EE_GLOBAL_ASSETS_URL', EE_TEMPLATES_URL . 'global_assets' . DS);
+		define('EE_IMAGES_URL', EE_GLOBAL_ASSETS_URL . 'images' . DS);
+		define('EE_THIRD_PARTY_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'third_party_libs' . DS);
+		define('EE_HELPERS_ASSETS', EE_PLUGIN_DIR_URL . 'core/helpers/assets/');
+		define('EE_LIBRARIES_URL', EE_PLUGIN_DIR_URL . 'core/libraries/');
+		// define upload paths
+		$uploads = wp_upload_dir();
+		// define the uploads directory and URL
+		define('EVENT_ESPRESSO_UPLOAD_DIR', $uploads['basedir'] . DS . 'espresso' . DS);
+		define('EVENT_ESPRESSO_UPLOAD_URL', $uploads['baseurl'] . DS . 'espresso' . DS);
+		// define the templates directory and URL
+		define('EVENT_ESPRESSO_TEMPLATE_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'templates' . DS);
+		define('EVENT_ESPRESSO_TEMPLATE_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'templates' . DS);
+		// define the gateway directory and URL
+		define('EVENT_ESPRESSO_GATEWAY_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'gateways' . DS);
+		define('EVENT_ESPRESSO_GATEWAY_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'gateways' . DS);
+		// languages folder/path
+		define('EE_LANGUAGES_SAFE_LOC', '..' . DS . 'uploads' . DS . 'espresso' . DS . 'languages' . DS);
+		define('EE_LANGUAGES_SAFE_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'languages' . DS);
+		//check for dompdf fonts in uploads
+		if (file_exists(EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS)) {
+			define('DOMPDF_FONT_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS);
+		}
+		//ajax constants
+		define(
+				'EE_FRONT_AJAX',
+				isset($_REQUEST['ee_front_ajax']) || isset($_REQUEST['data']['ee_front_ajax']) ? true : false
+		);
+		define(
+				'EE_ADMIN_AJAX',
+				isset($_REQUEST['ee_admin_ajax']) || isset($_REQUEST['data']['ee_admin_ajax']) ? true : false
+		);
+		//just a handy constant occasionally needed for finding values representing infinity in the DB
+		//you're better to use this than its straight value (currently -1) in case you ever
+		//want to change its default value! or find when -1 means infinity
+		define('EE_INF_IN_DB', -1);
+		define('EE_INF', INF > (float)PHP_INT_MAX ? INF : PHP_INT_MAX);
+		define('EE_DEBUG', false);
+		/**
+		 *    espresso_plugin_activation
+		 *    adds a wp-option to indicate that EE has been activated via the WP admin plugins page
+		 */
+		function espresso_plugin_activation()
+		{
+			update_option('ee_espresso_activation', true);
+		}
 
-        register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
-        /**
-         *    espresso_load_error_handling
-         *    this function loads EE's class for handling exceptions and errors
-         */
-        function espresso_load_error_handling()
-        {
-            // load debugging tools
-            if (WP_DEBUG === true && is_readable(EE_HELPERS . 'EEH_Debug_Tools.helper.php')) {
-                require_once(EE_HELPERS . 'EEH_Debug_Tools.helper.php');
-                EEH_Debug_Tools::instance();
-            }
-            // load error handling
-            if (is_readable(EE_CORE . 'EE_Error.core.php')) {
-                require_once(EE_CORE . 'EE_Error.core.php');
-            } else {
-                wp_die(esc_html__('The EE_Error core class could not be loaded.', 'event_espresso'));
-            }
-        }
+		register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
+		/**
+		 *    espresso_load_error_handling
+		 *    this function loads EE's class for handling exceptions and errors
+		 */
+		function espresso_load_error_handling()
+		{
+			// load debugging tools
+			if (WP_DEBUG === true && is_readable(EE_HELPERS . 'EEH_Debug_Tools.helper.php')) {
+				require_once(EE_HELPERS . 'EEH_Debug_Tools.helper.php');
+				EEH_Debug_Tools::instance();
+			}
+			// load error handling
+			if (is_readable(EE_CORE . 'EE_Error.core.php')) {
+				require_once(EE_CORE . 'EE_Error.core.php');
+			} else {
+				wp_die(esc_html__('The EE_Error core class could not be loaded.', 'event_espresso'));
+			}
+		}
 
-        /**
-         *    espresso_load_required
-         *    given a class name and path, this function will load that file or throw an exception
-         *
-         * @param    string $classname
-         * @param    string $full_path_to_file
-         * @throws    EE_Error
-         */
-        function espresso_load_required($classname, $full_path_to_file)
-        {
-            static $error_handling_loaded = false;
-            if ( ! $error_handling_loaded) {
-                espresso_load_error_handling();
-                $error_handling_loaded = true;
-            }
-            if (is_readable($full_path_to_file)) {
-                require_once($full_path_to_file);
-            } else {
-                throw new EE_Error (
-                        sprintf(
-                                esc_html__(
-                                        'The %s class file could not be located or is not readable due to file permissions.',
-                                        'event_espresso'
-                                ),
-                                $classname
-                        )
-                );
-            }
-        }
+		/**
+		 *    espresso_load_required
+		 *    given a class name and path, this function will load that file or throw an exception
+		 *
+		 * @param    string $classname
+		 * @param    string $full_path_to_file
+		 * @throws    EE_Error
+		 */
+		function espresso_load_required($classname, $full_path_to_file)
+		{
+			static $error_handling_loaded = false;
+			if ( ! $error_handling_loaded) {
+				espresso_load_error_handling();
+				$error_handling_loaded = true;
+			}
+			if (is_readable($full_path_to_file)) {
+				require_once($full_path_to_file);
+			} else {
+				throw new EE_Error (
+						sprintf(
+								esc_html__(
+										'The %s class file could not be located or is not readable due to file permissions.',
+										'event_espresso'
+								),
+								$classname
+						)
+				);
+			}
+		}
 
-        espresso_load_required('EEH_Base', EE_CORE . 'helpers' . DS . 'EEH_Base.helper.php');
-        espresso_load_required('EEH_File', EE_CORE . 'helpers' . DS . 'EEH_File.helper.php');
-        espresso_load_required('EE_Bootstrap', EE_CORE . 'EE_Bootstrap.core.php');
-        new EE_Bootstrap();
-    }
+		espresso_load_required('EEH_Base', EE_CORE . 'helpers' . DS . 'EEH_Base.helper.php');
+		espresso_load_required('EEH_File', EE_CORE . 'helpers' . DS . 'EEH_File.helper.php');
+		espresso_load_required('EE_Bootstrap', EE_CORE . 'EE_Bootstrap.core.php');
+		new EE_Bootstrap();
+	}
 }
 if ( ! function_exists('espresso_deactivate_plugin')) {
-    /**
-     *    deactivate_plugin
-     * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
-     *
-     * @access public
-     * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
-     * @return    void
-     */
-    function espresso_deactivate_plugin($plugin_basename = '')
-    {
-        if ( ! function_exists('deactivate_plugins')) {
-            require_once(ABSPATH . 'wp-admin/includes/plugin.php');
-        }
-        unset($_GET['activate'], $_REQUEST['activate']);
-        deactivate_plugins($plugin_basename);
-    }
+	/**
+	 *    deactivate_plugin
+	 * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
+	 *
+	 * @access public
+	 * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
+	 * @return    void
+	 */
+	function espresso_deactivate_plugin($plugin_basename = '')
+	{
+		if ( ! function_exists('deactivate_plugins')) {
+			require_once(ABSPATH . 'wp-admin/includes/plugin.php');
+		}
+		unset($_GET['activate'], $_REQUEST['activate']);
+		deactivate_plugins($plugin_basename);
+	}
 }