eventespresso / event-espresso-core

modules/ticket_sales_monitor/EED_Ticket_Sales_Monitor.module.php

Indentation +1050 added lines, -1050 removed lines

@@ -24,1057 +24,1057 @@
 class EED_Ticket_Sales_Monitor extends EED_Module
 {
 
-    const debug = false;    //	true false
-
-    /**
-     * an array of raw ticket data from EED_Ticket_Selector
-     *
-     * @var array $ticket_selections
-     */
-    protected $ticket_selections = array();
-
-    /**
-     * the raw ticket data from EED_Ticket_Selector is organized in rows
-     * according to how they are displayed in the actual Ticket_Selector
-     * this tracks the current row being processed
-     *
-     * @var int $current_row
-     */
-    protected $current_row = 0;
-
-    /**
-     * an array for tracking names of tickets that have sold out
-     *
-     * @var array $sold_out_tickets
-     */
-    protected $sold_out_tickets = array();
-
-    /**
-     * an array for tracking names of tickets that have had their quantities reduced
-     *
-     * @var array $decremented_tickets
-     */
-    protected $decremented_tickets = array();
-
-
-
-    /**
-     * set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @return    void
-     */
-    public static function set_hooks()
-    {
-        // release tickets for expired carts
-        add_action(
-            'EED_Ticket_Selector__process_ticket_selections__before',
-            array('EED_Ticket_Sales_Monitor', 'release_tickets_for_expired_carts'),
-            1
-        );
-        // check ticket reserves AFTER MER does it's check (hence priority 20)
-        add_filter(
-            'FHEE__EE_Ticket_Selector___add_ticket_to_cart__ticket_qty',
-            array('EED_Ticket_Sales_Monitor', 'validate_ticket_sale'),
-            20,
-            3
-        );
-        // add notices for sold out tickets
-        add_action(
-            'AHEE__EE_Ticket_Selector__process_ticket_selections__after_tickets_added_to_cart',
-            array('EED_Ticket_Sales_Monitor', 'post_notices'),
-            10
-        );
-        // handle ticket quantities adjusted in cart
-        //add_action(
-        //	'FHEE__EED_Multi_Event_Registration__adjust_line_item_quantity__line_item_quantity_updated',
-        //	array( 'EED_Ticket_Sales_Monitor', 'ticket_quantity_updated' ),
-        //	10, 2
-        //);
-        // handle tickets deleted from cart
-        add_action(
-            'FHEE__EED_Multi_Event_Registration__delete_ticket__ticket_removed_from_cart',
-            array('EED_Ticket_Sales_Monitor', 'ticket_removed_from_cart'),
-            10,
-            2
-        );
-        // handle emptied carts
-        add_action(
-            'AHEE__EE_Session__reset_cart__before_reset',
-            array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
-            10,
-            1
-        );
-        add_action(
-            'AHEE__EED_Multi_Event_Registration__empty_event_cart__before_delete_cart',
-            array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
-            10,
-            1
-        );
-        // handle cancelled registrations
-        add_action(
-            'AHEE__EE_Session__reset_checkout__before_reset',
-            array('EED_Ticket_Sales_Monitor', 'session_checkout_reset'),
-            10,
-            1
-        );
-        // cron tasks
-        add_action(
-            'AHEE__EE_Cron_Tasks__process_expired_transactions__abandoned_transaction',
-            array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
-            10,
-            1
-        );
-        add_action(
-            'AHEE__EE_Cron_Tasks__process_expired_transactions__incomplete_transaction',
-            array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
-            10,
-            1
-        );
-        add_action(
-            'AHEE__EE_Cron_Tasks__process_expired_transactions__failed_transaction',
-            array('EED_Ticket_Sales_Monitor', 'process_failed_transactions'),
-            10,
-            1
-        );
-    }
-
-
-
-    /**
-     * set_hooks_admin - for hooking into EE Admin Core, other modules, etc
-     *
-     * @return void
-     */
-    public static function set_hooks_admin()
-    {
-        EED_Ticket_Sales_Monitor::set_hooks();
-    }
-
-
-
-    /**
-     * @return EED_Ticket_Sales_Monitor|EED_Module
-     */
-    public static function instance()
-    {
-        return parent::get_instance(__CLASS__);
-    }
-
-
-
-    /**
-     * @param WP_Query $WP_Query
-     * @return    void
-     */
-    public function run($WP_Query)
-    {
-    }
-
-
-
-    /********************************** PRE_TICKET_SALES  **********************************/
-
-
-
-    /**
-     * Retrieves grand totals from the line items that have no TXN ID
-     * and timestamps less than the current time minus the session lifespan.
-     * These are carts that have been abandoned before the "registrant" even attempted to checkout.
-     * We're going to release the tickets for these line items before attempting to add more to the cart.
-     *
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws UnexpectedEntityException
-     */
-    public static function release_tickets_for_expired_carts()
-    {
-        do_action('AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__begin');
-        $expired_ticket_IDs      = array();
-        $valid_ticket_line_items = array();
-        $total_line_items        = EEM_Line_Item::instance()->get_total_line_items_with_no_transaction();
-        if (empty($total_line_items)) {
-            do_action(
-                'AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__end',
-                $total_line_items,
-                $valid_ticket_line_items,
-                $expired_ticket_IDs
-            );
-            return;
-        }
-        /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
-        $session_lifespan = LoaderFactory::getLoader()->getShared(
-            'EventEspresso\core\domain\values\session\SessionLifespan'
-        );
-        foreach ($total_line_items as $total_line_item) {
-            /** @var EE_Line_Item $total_line_item */
-            $ticket_line_items = EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total($total_line_item);
-            foreach ($ticket_line_items as $ticket_line_item) {
-                if (! $ticket_line_item instanceof EE_Line_Item) {
-                    continue;
-                }
-                if ($total_line_item->timestamp(true) <= $session_lifespan->expiration()) {
-                    $expired_ticket_IDs[ $ticket_line_item->OBJ_ID() ] = $ticket_line_item->OBJ_ID();
-                } else {
-                    $valid_ticket_line_items[ $ticket_line_item->OBJ_ID() ] = $ticket_line_item;
-                }
-            }
-        }
-        if (! empty($expired_ticket_IDs)) {
-            EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
-                \EEM_Ticket::instance()->get_tickets_with_IDs($expired_ticket_IDs),
-                $valid_ticket_line_items,
-                __FUNCTION__
-            );
-            // let's get rid of expired line items so that they can't interfere with tracking
-            add_action(
-                'shutdown',
-                array('EED_Ticket_Sales_Monitor', 'clear_expired_line_items_with_no_transaction'),
-                999
-            );
-        }
-        do_action(
-            'AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__end',
-            $total_line_items,
-            $valid_ticket_line_items,
-            $expired_ticket_IDs
-        );
-    }
-
-
-
-    /********************************** VALIDATE_TICKET_SALE  **********************************/
-
-
-
-    /**
-     * callback for 'FHEE__EED_Ticket_Selector__process_ticket_selections__valid_post_data'
-     *
-     * @param int       $qty
-     * @param EE_Ticket $ticket
-     * @return bool
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    public static function validate_ticket_sale($qty = 1, EE_Ticket $ticket)
-    {
-        $qty = absint($qty);
-        if ($qty > 0) {
-            $qty = EED_Ticket_Sales_Monitor::instance()->_validate_ticket_sale($ticket, $qty);
-        }
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '()';
-            echo '<br /><br /><b> RETURNED QTY: ' . $qty . '</b>';
-        }
-        return $qty;
-    }
-
-
-
-    /**
-     * checks whether an individual ticket is available for purchase based on datetime, and ticket details
-     *
-     * @param   EE_Ticket $ticket
-     * @param int         $qty
-     * @return int
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _validate_ticket_sale(EE_Ticket $ticket, $qty = 1)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        if (! $ticket instanceof EE_Ticket) {
-            return 0;
-        }
-        if (self::debug) {
-            echo '<br /><b> . ticket->ID: ' . $ticket->ID() . '</b>';
-            echo '<br /> . original ticket->reserved: ' . $ticket->reserved();
-        }
-        $ticket->refresh_from_db();
-        // first let's determine the ticket availability based on sales
-        $available = $ticket->qty('saleable');
-        if (self::debug) {
-            echo '<br /> . . . ticket->qty: ' . $ticket->qty();
-            echo '<br /> . . . ticket->sold: ' . $ticket->sold();
-            echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
-            echo '<br /> . . . ticket->qty(saleable): ' . $ticket->qty('saleable');
-            echo '<br /> . . . available: ' . $available;
-        }
-        if ($available < 1) {
-            $this->_ticket_sold_out($ticket);
-            return 0;
-        }
-        if (self::debug) {
-            echo '<br /> . . . qty: ' . $qty;
-        }
-        if ($available < $qty) {
-            $qty = $available;
-            if (self::debug) {
-                echo '<br /> . . . QTY ADJUSTED: ' . $qty;
-            }
-            $this->_ticket_quantity_decremented($ticket);
-        }
-        $this->_reserve_ticket($ticket, $qty);
-        return $qty;
-    }
-
-
-
-    /**
-     * increments ticket reserved based on quantity passed
-     *
-     * @param    EE_Ticket $ticket
-     * @param int          $quantity
-     * @return bool
-     * @throws EE_Error
-     */
-    protected function _reserve_ticket(EE_Ticket $ticket, $quantity = 1)
-    {
-        if (self::debug) {
-            echo '<br /><br /> . . . INCREASE RESERVED: ' . $quantity;
-        }
-        $ticket->increase_reserved($quantity, 'TicketSalesMonitor:'. __LINE__);
-        return $ticket->save();
-    }
-
-
-
-    /**
-     * @param  EE_Ticket $ticket
-     * @param  int       $quantity
-     * @return bool
-     * @throws EE_Error
-     */
-    protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
-    {
-        if (self::debug) {
-            echo '<br /> . . . ticket->ID: ' . $ticket->ID();
-            echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
-        }
-        $ticket->decrease_reserved($quantity, true, 'TicketSalesMonitor:'. __LINE__);
-        if (self::debug) {
-            echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
-        }
-        return $ticket->save() ? 1 : 0;
-    }
-
-
-
-    /**
-     * removes quantities within the ticket selector based on zero ticket availability
-     *
-     * @param    EE_Ticket $ticket
-     * @return    void
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _ticket_sold_out(EE_Ticket $ticket)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
-        }
-        $this->sold_out_tickets[] = $this->_get_ticket_and_event_name($ticket);
-    }
-
-
-
-    /**
-     * adjusts quantities within the ticket selector based on decreased ticket availability
-     *
-     * @param    EE_Ticket $ticket
-     * @return void
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _ticket_quantity_decremented(EE_Ticket $ticket)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
-        }
-        $this->decremented_tickets[] = $this->_get_ticket_and_event_name($ticket);
-    }
-
-
-
-    /**
-     * builds string out of ticket and event name
-     *
-     * @param    EE_Ticket $ticket
-     * @return string
-     * @throws UnexpectedEntityException
-     * @throws EE_Error
-     */
-    protected function _get_ticket_and_event_name(EE_Ticket $ticket)
-    {
-        $event = $ticket->get_related_event();
-        if ($event instanceof EE_Event) {
-            $ticket_name = sprintf(
-                _x('%1$s for %2$s', 'ticket name for event name', 'event_espresso'),
-                $ticket->name(),
-                $event->name()
-            );
-        } else {
-            $ticket_name = $ticket->name();
-        }
-        return $ticket_name;
-    }
-
-
-
-    /********************************** EVENT CART  **********************************/
-
-
-
-    /**
-     * releases or reserves ticket(s) based on quantity passed
-     *
-     * @param  EE_Line_Item $line_item
-     * @param  int          $quantity
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function ticket_quantity_updated(EE_Line_Item $line_item, $quantity = 1)
-    {
-        $ticket = EEM_Ticket::instance()->get_one_by_ID(absint($line_item->OBJ_ID()));
-        if ($ticket instanceof EE_Ticket) {
-            $ticket->add_extra_meta(
-                EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                __LINE__ . ') ' . __METHOD__ . '()'
-            );
-            if ($quantity > 0) {
-                EED_Ticket_Sales_Monitor::instance()->_reserve_ticket($ticket, $quantity);
-            } else {
-                EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
-            }
-        }
-    }
-
-
-
-    /**
-     * releases reserved ticket(s) based on quantity passed
-     *
-     * @param  EE_Ticket $ticket
-     * @param  int       $quantity
-     * @return void
-     * @throws EE_Error
-     */
-    public static function ticket_removed_from_cart(EE_Ticket $ticket, $quantity = 1)
-    {
-        $ticket->add_extra_meta(
-            EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-            __LINE__ . ') ' . __METHOD__ . '()'
-        );
-        EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
-    }
-
-
-
-    /********************************** POST_NOTICES  **********************************/
-
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function post_notices()
-    {
-        EED_Ticket_Sales_Monitor::instance()->_post_notices();
-    }
-
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _post_notices()
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        $refresh_msg    = '';
-        $none_added_msg = '';
-        if (defined('DOING_AJAX') && DOING_AJAX) {
-            $refresh_msg    = __(
-                'Please refresh the page to view updated ticket quantities.',
-                'event_espresso'
-            );
-            $none_added_msg = __('No tickets were added for the event.', 'event_espresso');
-        }
-        if (! empty($this->sold_out_tickets)) {
-            EE_Error::add_attention(
-                sprintf(
-                    apply_filters(
-                        'FHEE__EED_Ticket_Sales_Monitor___post_notices__sold_out_tickets_notice',
-                        __(
-                            'We\'re sorry...%1$sThe following items have sold out since you first viewed this page, and can no longer be registered for:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
-                            'event_espresso'
-                        )
-                    ),
-                    '<br />',
-                    implode('<br />', $this->sold_out_tickets),
-                    $none_added_msg,
-                    $refresh_msg
-                )
-            );
-            // alter code flow in the Ticket Selector for better UX
-            add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__tckts_slctd', '__return_true');
-            add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__success', '__return_false');
-            $this->sold_out_tickets = array();
-            // and reset the cart
-            EED_Ticket_Sales_Monitor::session_cart_reset(EE_Registry::instance()->SSN);
-        }
-        if (! empty($this->decremented_tickets)) {
-            EE_Error::add_attention(
-                sprintf(
-                    apply_filters(
-                        'FHEE__EED_Ticket_Sales_Monitor___ticket_quantity_decremented__notice',
-                        __(
-                            'We\'re sorry...%1$sDue to sales that have occurred since you first viewed the last page, the following items have had their quantities adjusted to match the current available amount:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
-                            'event_espresso'
-                        )
-                    ),
-                    '<br />',
-                    implode('<br />', $this->decremented_tickets),
-                    $none_added_msg,
-                    $refresh_msg
-                )
-            );
-            $this->decremented_tickets = array();
-        }
-    }
-
-
-
-    /********************************** RELEASE_ALL_RESERVED_TICKETS_FOR_TRANSACTION  **********************************/
-
-
-
-    /**
-     * releases reserved tickets for all registrations of an EE_Transaction
-     * by default, will NOT release tickets for finalized transactions
-     *
-     * @param    EE_Transaction $transaction
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    protected function _release_all_reserved_tickets_for_transaction(EE_Transaction $transaction)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . transaction->ID: ' . $transaction->ID();
-            echo '<br /> . TXN status_ID: ' . $transaction->status_ID();
-        }
-        // check if 'finalize_registration' step has been completed...
-        $finalized = $transaction->reg_step_completed('finalize_registration');
-        if (self::debug) {
-            // DEBUG LOG
-            EEH_Debug_Tools::log(
-                __CLASS__,
-                __FUNCTION__,
-                __LINE__,
-                array('finalized' => $finalized),
-                false,
-                'EE_Transaction: ' . $transaction->ID()
-            );
-        }
-        // how many tickets were released
-        $count = 0;
-        if (self::debug) {
-            echo '<br /> . . . TXN finalized: ' . $finalized;
-        }
-        $release_tickets_with_TXN_status = array(
-            EEM_Transaction::failed_status_code,
-            EEM_Transaction::abandoned_status_code,
-            EEM_Transaction::incomplete_status_code,
-        );
-        $events = array();
-        // if the session is getting cleared BEFORE the TXN has been finalized or the transaction is not completed
-        if (! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
-            // cancel any reserved tickets for registrations that were not approved
-            $registrations = $transaction->registrations();
-            if (self::debug) {
-                echo '<br /> . . . # registrations: ' . count($registrations);
-                $reg    = reset($registrations);
-                $ticket = $reg->ticket();
-                if ($ticket instanceof EE_Ticket) {
-                    $ticket->add_extra_meta(
-                        EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') Release All Tickets TXN:' . $transaction->ID()
-                    );
-                }
-            }
-            if (! empty($registrations)) {
-                foreach ($registrations as $registration) {
-                    if (
-                        $registration instanceof EE_Registration
-                        && $this->_release_reserved_ticket_for_registration($registration, $transaction)
-                    ) {
-                        $count++;
-                        $events[ $registration->event_ID() ] = $registration->event();
-                    }
-                }
-            }
-        }
-        if ($events !== array()) {
-            foreach ($events as $event) {
-                /** @var EE_Event $event */
-                $event->perform_sold_out_status_check();
-            }
-        }
-        return $count;
-    }
-
-
-
-    /**
-     * releases reserved tickets for an EE_Registration
-     * by default, will NOT release tickets for APPROVED registrations
-     *
-     * @param EE_Registration $registration
-     * @param EE_Transaction  $transaction
-     * @return int
-     * @throws EE_Error
-     */
-    protected function _release_reserved_ticket_for_registration(
-        EE_Registration $registration,
-        EE_Transaction $transaction
-    ) {
-        $STS_ID = $transaction->status_ID();
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . . registration->ID: ' . $registration->ID();
-            echo '<br /> . . registration->status_ID: ' . $registration->status_ID();
-            echo '<br /> . . transaction->status_ID(): ' . $STS_ID;
-        }
-        if (
-            // release Tickets for Failed Transactions and Abandoned Transactions
-            $STS_ID === EEM_Transaction::failed_status_code
-            || $STS_ID === EEM_Transaction::abandoned_status_code
-            || (
-                // also release Tickets for Incomplete Transactions, but ONLY if the Registrations are NOT Approved
-                $STS_ID === EEM_Transaction::incomplete_status_code
-                && $registration->status_ID() !== EEM_Registration::status_id_approved
-            )
-        ) {
-            if (self::debug) {
-                echo '<br /><br /> . . RELEASE RESERVED TICKET';
-                $rsrvd = $registration->get_extra_meta(EE_Registration::HAS_RESERVED_TICKET_KEY, true);
-                echo '<br /> . . . registration HAS_RESERVED_TICKET_KEY: ';
-                var_dump($rsrvd);
-            }
-            $registration->release_reserved_ticket(true, 'TicketSalesMonitor:'. __LINE__);
-            return 1;
-        }
-        return 0;
-    }
-
-
-
-    /********************************** SESSION_CART_RESET  **********************************/
-
-
-
-    /**
-     * callback hooked into 'AHEE__EE_Session__reset_cart__before_reset'
-     *
-     * @param EE_Session $session
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function session_cart_reset(EE_Session $session)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        // first check of the session has a valid Checkout object
-        $checkout = $session->checkout();
-        if ($checkout instanceof EE_Checkout) {
-            // and use that to clear ticket reservations because it will update the associated registration meta data
-            EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
-            return;
-        }
-        $cart = $session->cart();
-        if ($cart instanceof EE_Cart) {
-            if (self::debug) {
-                echo '<br /><br /> cart instance of EE_Cart: ';
-            }
-            EED_Ticket_Sales_Monitor::instance()->_session_cart_reset($cart, $session);
-        } else {
-            if (self::debug) {
-                echo '<br /><br /> invalid EE_Cart: ';
-                var_export($cart, true);
-            }
-        }
-    }
-
-
-
-    /**
-     * releases reserved tickets in the EE_Cart
-     *
-     * @param EE_Cart $cart
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _session_cart_reset(EE_Cart $cart, EE_Session $session)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        EE_Registry::instance()->load_helper('Line_Item');
-        $ticket_line_items = $cart->get_tickets();
-        if (empty($ticket_line_items)) {
-            return;
-        }
-        foreach ($ticket_line_items as $ticket_line_item) {
-            if (self::debug) {
-                echo '<br /> . ticket_line_item->ID(): ' . $ticket_line_item->ID();
-            }
-            if ($ticket_line_item instanceof EE_Line_Item && $ticket_line_item->OBJ_type() === 'Ticket') {
-                if (self::debug) {
-                    echo '<br /> . . ticket_line_item->OBJ_ID(): ' . $ticket_line_item->OBJ_ID();
-                }
-                $ticket = EEM_Ticket::instance()->get_one_by_ID($ticket_line_item->OBJ_ID());
-                if ($ticket instanceof EE_Ticket) {
-                    if (self::debug) {
-                        echo '<br /> . . ticket->ID(): ' . $ticket->ID();
-                        echo '<br /> . . ticket_line_item->quantity(): ' . $ticket_line_item->quantity();
-                    }
-                    $ticket->add_extra_meta(
-                        EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') ' . __METHOD__ . '() SID = ' . $session->id()
-                    );
-                    $this->_release_reserved_ticket($ticket, $ticket_line_item->quantity());
-                }
-            }
-        }
-        if (self::debug) {
-            echo '<br /><br /> RESET COMPLETED ';
-        }
-    }
-
-
-
-    /********************************** SESSION_CHECKOUT_RESET  **********************************/
-
-
-
-    /**
-     * callback hooked into 'AHEE__EE_Session__reset_checkout__before_reset'
-     *
-     * @param EE_Session $session
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    public static function session_checkout_reset(EE_Session $session)
-    {
-        $checkout = $session->checkout();
-        if ($checkout instanceof EE_Checkout) {
-            EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
-        }
-    }
-
-
-
-    /**
-     * releases reserved tickets for the EE_Checkout->transaction
-     *
-     * @param EE_Checkout $checkout
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    protected function _session_checkout_reset(EE_Checkout $checkout)
-    {
-        if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-        }
-        // we want to release the each registration's reserved tickets if the session was cleared, but not if this is a revisit
-        if ($checkout->revisit || ! $checkout->transaction instanceof EE_Transaction) {
-            return;
-        }
-        $this->_release_all_reserved_tickets_for_transaction($checkout->transaction);
-    }
-
-
-
-    /********************************** SESSION_EXPIRED_RESET  **********************************/
-
-
-
-    /**
-     * @param    EE_Session $session
-     * @return    void
-     */
-    public static function session_expired_reset(EE_Session $session)
-    {
-    }
-
-
-
-    /********************************** PROCESS_ABANDONED_TRANSACTIONS  **********************************/
-
-
-
-    /**
-     * releases reserved tickets for all registrations of an ABANDONED EE_Transaction
-     * by default, will NOT release tickets for free transactions, or any that have received a payment
-     *
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    public static function process_abandoned_transactions(EE_Transaction $transaction)
-    {
-        // is this TXN free or has any money been paid towards this TXN? If so, then leave it alone
-        if ($transaction->is_free() || $transaction->paid() > 0) {
-            if (self::debug) {
-                // DEBUG LOG
-                EEH_Debug_Tools::log(
-                    __CLASS__,
-                    __FUNCTION__,
-                    __LINE__,
-                    array($transaction),
-                    false,
-                    'EE_Transaction: ' . $transaction->ID()
-                );
-            }
-            return;
-        }
-        // have their been any successful payments made ?
-        $payments = $transaction->payments();
-        foreach ($payments as $payment) {
-            if ($payment instanceof EE_Payment && $payment->status() === EEM_Payment::status_id_approved) {
-                if (self::debug) {
-                    // DEBUG LOG
-                    EEH_Debug_Tools::log(
-                        __CLASS__,
-                        __FUNCTION__,
-                        __LINE__,
-                        array($payment),
-                        false,
-                        'EE_Transaction: ' . $transaction->ID()
-                    );
-                }
-                return;
-            }
-        }
-        // since you haven't even attempted to pay for your ticket...
-        EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
-    }
-
-
-
-    /********************************** PROCESS_FAILED_TRANSACTIONS  **********************************/
-
-
-
-    /**
-     * releases reserved tickets for absolutely ALL registrations of a FAILED EE_Transaction
-     *
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidSessionDataException
-     */
-    public static function process_failed_transactions(EE_Transaction $transaction)
-    {
-        // since you haven't even attempted to pay for your ticket...
-        EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
-    }
-
-
-
-    /********************************** RESET RESERVATION COUNTS  *********************************/
-
-
-
-    /**
-     * Resets all ticket and datetime reserved counts to zero
-     * Tickets that are currently associated with a Transaction that is in progress
-     *
-     * @throws EE_Error
-     * @throws DomainException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     * @throws UnexpectedEntityException
-     */
-    public static function reset_reservation_counts()
-    {
-        /** @var EE_Line_Item[] $valid_reserved_tickets */
-        $valid_reserved_tickets = array();
-        /** @var EE_Transaction[] $transactions_not_in_progress */
-        $transactions_not_in_progress = EEM_Transaction::instance()->get_transactions_not_in_progress();
-        foreach ($transactions_not_in_progress as $transaction) {
-            // if this TXN has been fully completed, then skip it
-            if ($transaction->reg_step_completed('finalize_registration')) {
-                continue;
-            }
-            $total_line_item = $transaction->total_line_item();
-            // $transaction_in_progress->line
-            if (! $total_line_item instanceof EE_Line_Item) {
-                throw new DomainException(
-                    esc_html__(
-                        'Transaction does not have a valid Total Line Item associated with it.',
-                        'event_espresso'
-                    )
-                );
-            }
-            $valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
-                $total_line_item
-            );
-        }
-        $total_line_items = EEM_Line_Item::instance()->get_total_line_items_for_active_carts();
-        foreach ($total_line_items as $total_line_item) {
-            $valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
-                $total_line_item
-            );
-        }
-        $tickets_with_reservations = EEM_Ticket::instance()->get_tickets_with_reservations();
-        return EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
-            $tickets_with_reservations,
-            $valid_reserved_tickets,
-            __FUNCTION__
-        );
-    }
-
-
-
-    /**
-     * @param EE_Line_Item $total_line_item
-     * @return EE_Line_Item[]
-     */
-    private static function get_ticket_line_items_for_grand_total(EE_Line_Item $total_line_item)
-    {
-        /** @var EE_Line_Item[] $valid_reserved_tickets */
-        $valid_reserved_tickets = array();
-        $ticket_line_items      = EEH_Line_Item::get_ticket_line_items($total_line_item);
-        foreach ($ticket_line_items as $ticket_line_item) {
-            if ($ticket_line_item instanceof EE_Line_Item) {
-                $valid_reserved_tickets[] = $ticket_line_item;
-            }
-        }
-        return $valid_reserved_tickets;
-    }
-
-
-
-    /**
-     * @param EE_Ticket[]    $tickets_with_reservations
-     * @param EE_Line_Item[] $valid_reserved_ticket_line_items
-     * @return int
-     * @throws UnexpectedEntityException
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    private static function release_reservations_for_tickets(
-        array $tickets_with_reservations,
-        array $valid_reserved_ticket_line_items = array(),
-        $source
-    ) {
-        $total_tickets_released = 0;
-        $sold_out_events = array();
-        foreach ($tickets_with_reservations as $ticket_with_reservations) {
-            if (! $ticket_with_reservations instanceof EE_Ticket) {
-                continue;
-            }
-            $reserved_qty = $ticket_with_reservations->reserved();
-            foreach ($valid_reserved_ticket_line_items as $valid_reserved_ticket_line_item) {
-                if (
-                    $valid_reserved_ticket_line_item instanceof EE_Line_Item
-                    && $valid_reserved_ticket_line_item->OBJ_ID() === $ticket_with_reservations->ID()
-                ) {
-                    $reserved_qty -= $valid_reserved_ticket_line_item->quantity();
-                }
-            }
-            if ($reserved_qty > 0) {
-                $ticket_with_reservations->add_extra_meta(
-                    EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                    __LINE__ . ') ' . $source . '()'
-                );
-                $ticket_with_reservations->decrease_reserved($reserved_qty, true, 'TicketSalesMonitor:'. __LINE__);
-                $ticket_with_reservations->save();
-                $total_tickets_released += $reserved_qty;
-                $event = $ticket_with_reservations->get_related_event();
-                // track sold out events
-                if ($event instanceof EE_Event && $event->is_sold_out()) {
-                    $sold_out_events[] = $event;
-                }
-            }
-        }
-        // double check whether sold out events should remain sold out after releasing tickets
-        if($sold_out_events !== array()){
-            foreach ($sold_out_events as $sold_out_event) {
-                /** @var EE_Event $sold_out_event */
-                $sold_out_event->perform_sold_out_status_check();
-            }
-        }
-        return $total_tickets_released;
-    }
-
-
-
-    /********************************** SHUTDOWN  **********************************/
-
-
-
-    /**
-     * @return false|int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function clear_expired_line_items_with_no_transaction()
-    {
-        /** @type WPDB $wpdb */
-        global $wpdb;
-        /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
-        $session_lifespan = LoaderFactory::getLoader()->getShared(
-            'EventEspresso\core\domain\values\session\SessionLifespan'
-        );
-        return $wpdb->query(
-            $wpdb->prepare(
-                'DELETE FROM ' . EEM_Line_Item::instance()->table() . '
+	const debug = false;    //	true false
+
+	/**
+	 * an array of raw ticket data from EED_Ticket_Selector
+	 *
+	 * @var array $ticket_selections
+	 */
+	protected $ticket_selections = array();
+
+	/**
+	 * the raw ticket data from EED_Ticket_Selector is organized in rows
+	 * according to how they are displayed in the actual Ticket_Selector
+	 * this tracks the current row being processed
+	 *
+	 * @var int $current_row
+	 */
+	protected $current_row = 0;
+
+	/**
+	 * an array for tracking names of tickets that have sold out
+	 *
+	 * @var array $sold_out_tickets
+	 */
+	protected $sold_out_tickets = array();
+
+	/**
+	 * an array for tracking names of tickets that have had their quantities reduced
+	 *
+	 * @var array $decremented_tickets
+	 */
+	protected $decremented_tickets = array();
+
+
+
+	/**
+	 * set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @return    void
+	 */
+	public static function set_hooks()
+	{
+		// release tickets for expired carts
+		add_action(
+			'EED_Ticket_Selector__process_ticket_selections__before',
+			array('EED_Ticket_Sales_Monitor', 'release_tickets_for_expired_carts'),
+			1
+		);
+		// check ticket reserves AFTER MER does it's check (hence priority 20)
+		add_filter(
+			'FHEE__EE_Ticket_Selector___add_ticket_to_cart__ticket_qty',
+			array('EED_Ticket_Sales_Monitor', 'validate_ticket_sale'),
+			20,
+			3
+		);
+		// add notices for sold out tickets
+		add_action(
+			'AHEE__EE_Ticket_Selector__process_ticket_selections__after_tickets_added_to_cart',
+			array('EED_Ticket_Sales_Monitor', 'post_notices'),
+			10
+		);
+		// handle ticket quantities adjusted in cart
+		//add_action(
+		//	'FHEE__EED_Multi_Event_Registration__adjust_line_item_quantity__line_item_quantity_updated',
+		//	array( 'EED_Ticket_Sales_Monitor', 'ticket_quantity_updated' ),
+		//	10, 2
+		//);
+		// handle tickets deleted from cart
+		add_action(
+			'FHEE__EED_Multi_Event_Registration__delete_ticket__ticket_removed_from_cart',
+			array('EED_Ticket_Sales_Monitor', 'ticket_removed_from_cart'),
+			10,
+			2
+		);
+		// handle emptied carts
+		add_action(
+			'AHEE__EE_Session__reset_cart__before_reset',
+			array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
+			10,
+			1
+		);
+		add_action(
+			'AHEE__EED_Multi_Event_Registration__empty_event_cart__before_delete_cart',
+			array('EED_Ticket_Sales_Monitor', 'session_cart_reset'),
+			10,
+			1
+		);
+		// handle cancelled registrations
+		add_action(
+			'AHEE__EE_Session__reset_checkout__before_reset',
+			array('EED_Ticket_Sales_Monitor', 'session_checkout_reset'),
+			10,
+			1
+		);
+		// cron tasks
+		add_action(
+			'AHEE__EE_Cron_Tasks__process_expired_transactions__abandoned_transaction',
+			array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
+			10,
+			1
+		);
+		add_action(
+			'AHEE__EE_Cron_Tasks__process_expired_transactions__incomplete_transaction',
+			array('EED_Ticket_Sales_Monitor', 'process_abandoned_transactions'),
+			10,
+			1
+		);
+		add_action(
+			'AHEE__EE_Cron_Tasks__process_expired_transactions__failed_transaction',
+			array('EED_Ticket_Sales_Monitor', 'process_failed_transactions'),
+			10,
+			1
+		);
+	}
+
+
+
+	/**
+	 * set_hooks_admin - for hooking into EE Admin Core, other modules, etc
+	 *
+	 * @return void
+	 */
+	public static function set_hooks_admin()
+	{
+		EED_Ticket_Sales_Monitor::set_hooks();
+	}
+
+
+
+	/**
+	 * @return EED_Ticket_Sales_Monitor|EED_Module
+	 */
+	public static function instance()
+	{
+		return parent::get_instance(__CLASS__);
+	}
+
+
+
+	/**
+	 * @param WP_Query $WP_Query
+	 * @return    void
+	 */
+	public function run($WP_Query)
+	{
+	}
+
+
+
+	/********************************** PRE_TICKET_SALES  **********************************/
+
+
+
+	/**
+	 * Retrieves grand totals from the line items that have no TXN ID
+	 * and timestamps less than the current time minus the session lifespan.
+	 * These are carts that have been abandoned before the "registrant" even attempted to checkout.
+	 * We're going to release the tickets for these line items before attempting to add more to the cart.
+	 *
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws UnexpectedEntityException
+	 */
+	public static function release_tickets_for_expired_carts()
+	{
+		do_action('AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__begin');
+		$expired_ticket_IDs      = array();
+		$valid_ticket_line_items = array();
+		$total_line_items        = EEM_Line_Item::instance()->get_total_line_items_with_no_transaction();
+		if (empty($total_line_items)) {
+			do_action(
+				'AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__end',
+				$total_line_items,
+				$valid_ticket_line_items,
+				$expired_ticket_IDs
+			);
+			return;
+		}
+		/** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
+		$session_lifespan = LoaderFactory::getLoader()->getShared(
+			'EventEspresso\core\domain\values\session\SessionLifespan'
+		);
+		foreach ($total_line_items as $total_line_item) {
+			/** @var EE_Line_Item $total_line_item */
+			$ticket_line_items = EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total($total_line_item);
+			foreach ($ticket_line_items as $ticket_line_item) {
+				if (! $ticket_line_item instanceof EE_Line_Item) {
+					continue;
+				}
+				if ($total_line_item->timestamp(true) <= $session_lifespan->expiration()) {
+					$expired_ticket_IDs[ $ticket_line_item->OBJ_ID() ] = $ticket_line_item->OBJ_ID();
+				} else {
+					$valid_ticket_line_items[ $ticket_line_item->OBJ_ID() ] = $ticket_line_item;
+				}
+			}
+		}
+		if (! empty($expired_ticket_IDs)) {
+			EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
+				\EEM_Ticket::instance()->get_tickets_with_IDs($expired_ticket_IDs),
+				$valid_ticket_line_items,
+				__FUNCTION__
+			);
+			// let's get rid of expired line items so that they can't interfere with tracking
+			add_action(
+				'shutdown',
+				array('EED_Ticket_Sales_Monitor', 'clear_expired_line_items_with_no_transaction'),
+				999
+			);
+		}
+		do_action(
+			'AHEE__EED_Ticket_Sales_Monitor__release_tickets_for_expired_carts__end',
+			$total_line_items,
+			$valid_ticket_line_items,
+			$expired_ticket_IDs
+		);
+	}
+
+
+
+	/********************************** VALIDATE_TICKET_SALE  **********************************/
+
+
+
+	/**
+	 * callback for 'FHEE__EED_Ticket_Selector__process_ticket_selections__valid_post_data'
+	 *
+	 * @param int       $qty
+	 * @param EE_Ticket $ticket
+	 * @return bool
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	public static function validate_ticket_sale($qty = 1, EE_Ticket $ticket)
+	{
+		$qty = absint($qty);
+		if ($qty > 0) {
+			$qty = EED_Ticket_Sales_Monitor::instance()->_validate_ticket_sale($ticket, $qty);
+		}
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '()';
+			echo '<br /><br /><b> RETURNED QTY: ' . $qty . '</b>';
+		}
+		return $qty;
+	}
+
+
+
+	/**
+	 * checks whether an individual ticket is available for purchase based on datetime, and ticket details
+	 *
+	 * @param   EE_Ticket $ticket
+	 * @param int         $qty
+	 * @return int
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _validate_ticket_sale(EE_Ticket $ticket, $qty = 1)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		if (! $ticket instanceof EE_Ticket) {
+			return 0;
+		}
+		if (self::debug) {
+			echo '<br /><b> . ticket->ID: ' . $ticket->ID() . '</b>';
+			echo '<br /> . original ticket->reserved: ' . $ticket->reserved();
+		}
+		$ticket->refresh_from_db();
+		// first let's determine the ticket availability based on sales
+		$available = $ticket->qty('saleable');
+		if (self::debug) {
+			echo '<br /> . . . ticket->qty: ' . $ticket->qty();
+			echo '<br /> . . . ticket->sold: ' . $ticket->sold();
+			echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
+			echo '<br /> . . . ticket->qty(saleable): ' . $ticket->qty('saleable');
+			echo '<br /> . . . available: ' . $available;
+		}
+		if ($available < 1) {
+			$this->_ticket_sold_out($ticket);
+			return 0;
+		}
+		if (self::debug) {
+			echo '<br /> . . . qty: ' . $qty;
+		}
+		if ($available < $qty) {
+			$qty = $available;
+			if (self::debug) {
+				echo '<br /> . . . QTY ADJUSTED: ' . $qty;
+			}
+			$this->_ticket_quantity_decremented($ticket);
+		}
+		$this->_reserve_ticket($ticket, $qty);
+		return $qty;
+	}
+
+
+
+	/**
+	 * increments ticket reserved based on quantity passed
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @param int          $quantity
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	protected function _reserve_ticket(EE_Ticket $ticket, $quantity = 1)
+	{
+		if (self::debug) {
+			echo '<br /><br /> . . . INCREASE RESERVED: ' . $quantity;
+		}
+		$ticket->increase_reserved($quantity, 'TicketSalesMonitor:'. __LINE__);
+		return $ticket->save();
+	}
+
+
+
+	/**
+	 * @param  EE_Ticket $ticket
+	 * @param  int       $quantity
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
+	{
+		if (self::debug) {
+			echo '<br /> . . . ticket->ID: ' . $ticket->ID();
+			echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
+		}
+		$ticket->decrease_reserved($quantity, true, 'TicketSalesMonitor:'. __LINE__);
+		if (self::debug) {
+			echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
+		}
+		return $ticket->save() ? 1 : 0;
+	}
+
+
+
+	/**
+	 * removes quantities within the ticket selector based on zero ticket availability
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @return    void
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _ticket_sold_out(EE_Ticket $ticket)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo '<br /> . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+		}
+		$this->sold_out_tickets[] = $this->_get_ticket_and_event_name($ticket);
+	}
+
+
+
+	/**
+	 * adjusts quantities within the ticket selector based on decreased ticket availability
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @return void
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _ticket_quantity_decremented(EE_Ticket $ticket)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo '<br /> . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+		}
+		$this->decremented_tickets[] = $this->_get_ticket_and_event_name($ticket);
+	}
+
+
+
+	/**
+	 * builds string out of ticket and event name
+	 *
+	 * @param    EE_Ticket $ticket
+	 * @return string
+	 * @throws UnexpectedEntityException
+	 * @throws EE_Error
+	 */
+	protected function _get_ticket_and_event_name(EE_Ticket $ticket)
+	{
+		$event = $ticket->get_related_event();
+		if ($event instanceof EE_Event) {
+			$ticket_name = sprintf(
+				_x('%1$s for %2$s', 'ticket name for event name', 'event_espresso'),
+				$ticket->name(),
+				$event->name()
+			);
+		} else {
+			$ticket_name = $ticket->name();
+		}
+		return $ticket_name;
+	}
+
+
+
+	/********************************** EVENT CART  **********************************/
+
+
+
+	/**
+	 * releases or reserves ticket(s) based on quantity passed
+	 *
+	 * @param  EE_Line_Item $line_item
+	 * @param  int          $quantity
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function ticket_quantity_updated(EE_Line_Item $line_item, $quantity = 1)
+	{
+		$ticket = EEM_Ticket::instance()->get_one_by_ID(absint($line_item->OBJ_ID()));
+		if ($ticket instanceof EE_Ticket) {
+			$ticket->add_extra_meta(
+				EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+				__LINE__ . ') ' . __METHOD__ . '()'
+			);
+			if ($quantity > 0) {
+				EED_Ticket_Sales_Monitor::instance()->_reserve_ticket($ticket, $quantity);
+			} else {
+				EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
+			}
+		}
+	}
+
+
+
+	/**
+	 * releases reserved ticket(s) based on quantity passed
+	 *
+	 * @param  EE_Ticket $ticket
+	 * @param  int       $quantity
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public static function ticket_removed_from_cart(EE_Ticket $ticket, $quantity = 1)
+	{
+		$ticket->add_extra_meta(
+			EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+			__LINE__ . ') ' . __METHOD__ . '()'
+		);
+		EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
+	}
+
+
+
+	/********************************** POST_NOTICES  **********************************/
+
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function post_notices()
+	{
+		EED_Ticket_Sales_Monitor::instance()->_post_notices();
+	}
+
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _post_notices()
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		$refresh_msg    = '';
+		$none_added_msg = '';
+		if (defined('DOING_AJAX') && DOING_AJAX) {
+			$refresh_msg    = __(
+				'Please refresh the page to view updated ticket quantities.',
+				'event_espresso'
+			);
+			$none_added_msg = __('No tickets were added for the event.', 'event_espresso');
+		}
+		if (! empty($this->sold_out_tickets)) {
+			EE_Error::add_attention(
+				sprintf(
+					apply_filters(
+						'FHEE__EED_Ticket_Sales_Monitor___post_notices__sold_out_tickets_notice',
+						__(
+							'We\'re sorry...%1$sThe following items have sold out since you first viewed this page, and can no longer be registered for:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
+							'event_espresso'
+						)
+					),
+					'<br />',
+					implode('<br />', $this->sold_out_tickets),
+					$none_added_msg,
+					$refresh_msg
+				)
+			);
+			// alter code flow in the Ticket Selector for better UX
+			add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__tckts_slctd', '__return_true');
+			add_filter('FHEE__EED_Ticket_Selector__process_ticket_selections__success', '__return_false');
+			$this->sold_out_tickets = array();
+			// and reset the cart
+			EED_Ticket_Sales_Monitor::session_cart_reset(EE_Registry::instance()->SSN);
+		}
+		if (! empty($this->decremented_tickets)) {
+			EE_Error::add_attention(
+				sprintf(
+					apply_filters(
+						'FHEE__EED_Ticket_Sales_Monitor___ticket_quantity_decremented__notice',
+						__(
+							'We\'re sorry...%1$sDue to sales that have occurred since you first viewed the last page, the following items have had their quantities adjusted to match the current available amount:%1$s%1$s%2$s%1$s%1$sPlease note that availability can change at any time due to cancellations, so please check back again later if registration for this event(s) is important to you.%1$s%1$s%3$s%1$s%4$s%1$s',
+							'event_espresso'
+						)
+					),
+					'<br />',
+					implode('<br />', $this->decremented_tickets),
+					$none_added_msg,
+					$refresh_msg
+				)
+			);
+			$this->decremented_tickets = array();
+		}
+	}
+
+
+
+	/********************************** RELEASE_ALL_RESERVED_TICKETS_FOR_TRANSACTION  **********************************/
+
+
+
+	/**
+	 * releases reserved tickets for all registrations of an EE_Transaction
+	 * by default, will NOT release tickets for finalized transactions
+	 *
+	 * @param    EE_Transaction $transaction
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	protected function _release_all_reserved_tickets_for_transaction(EE_Transaction $transaction)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo '<br /> . transaction->ID: ' . $transaction->ID();
+			echo '<br /> . TXN status_ID: ' . $transaction->status_ID();
+		}
+		// check if 'finalize_registration' step has been completed...
+		$finalized = $transaction->reg_step_completed('finalize_registration');
+		if (self::debug) {
+			// DEBUG LOG
+			EEH_Debug_Tools::log(
+				__CLASS__,
+				__FUNCTION__,
+				__LINE__,
+				array('finalized' => $finalized),
+				false,
+				'EE_Transaction: ' . $transaction->ID()
+			);
+		}
+		// how many tickets were released
+		$count = 0;
+		if (self::debug) {
+			echo '<br /> . . . TXN finalized: ' . $finalized;
+		}
+		$release_tickets_with_TXN_status = array(
+			EEM_Transaction::failed_status_code,
+			EEM_Transaction::abandoned_status_code,
+			EEM_Transaction::incomplete_status_code,
+		);
+		$events = array();
+		// if the session is getting cleared BEFORE the TXN has been finalized or the transaction is not completed
+		if (! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
+			// cancel any reserved tickets for registrations that were not approved
+			$registrations = $transaction->registrations();
+			if (self::debug) {
+				echo '<br /> . . . # registrations: ' . count($registrations);
+				$reg    = reset($registrations);
+				$ticket = $reg->ticket();
+				if ($ticket instanceof EE_Ticket) {
+					$ticket->add_extra_meta(
+						EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+						__LINE__ . ') Release All Tickets TXN:' . $transaction->ID()
+					);
+				}
+			}
+			if (! empty($registrations)) {
+				foreach ($registrations as $registration) {
+					if (
+						$registration instanceof EE_Registration
+						&& $this->_release_reserved_ticket_for_registration($registration, $transaction)
+					) {
+						$count++;
+						$events[ $registration->event_ID() ] = $registration->event();
+					}
+				}
+			}
+		}
+		if ($events !== array()) {
+			foreach ($events as $event) {
+				/** @var EE_Event $event */
+				$event->perform_sold_out_status_check();
+			}
+		}
+		return $count;
+	}
+
+
+
+	/**
+	 * releases reserved tickets for an EE_Registration
+	 * by default, will NOT release tickets for APPROVED registrations
+	 *
+	 * @param EE_Registration $registration
+	 * @param EE_Transaction  $transaction
+	 * @return int
+	 * @throws EE_Error
+	 */
+	protected function _release_reserved_ticket_for_registration(
+		EE_Registration $registration,
+		EE_Transaction $transaction
+	) {
+		$STS_ID = $transaction->status_ID();
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+			echo '<br /> . . registration->ID: ' . $registration->ID();
+			echo '<br /> . . registration->status_ID: ' . $registration->status_ID();
+			echo '<br /> . . transaction->status_ID(): ' . $STS_ID;
+		}
+		if (
+			// release Tickets for Failed Transactions and Abandoned Transactions
+			$STS_ID === EEM_Transaction::failed_status_code
+			|| $STS_ID === EEM_Transaction::abandoned_status_code
+			|| (
+				// also release Tickets for Incomplete Transactions, but ONLY if the Registrations are NOT Approved
+				$STS_ID === EEM_Transaction::incomplete_status_code
+				&& $registration->status_ID() !== EEM_Registration::status_id_approved
+			)
+		) {
+			if (self::debug) {
+				echo '<br /><br /> . . RELEASE RESERVED TICKET';
+				$rsrvd = $registration->get_extra_meta(EE_Registration::HAS_RESERVED_TICKET_KEY, true);
+				echo '<br /> . . . registration HAS_RESERVED_TICKET_KEY: ';
+				var_dump($rsrvd);
+			}
+			$registration->release_reserved_ticket(true, 'TicketSalesMonitor:'. __LINE__);
+			return 1;
+		}
+		return 0;
+	}
+
+
+
+	/********************************** SESSION_CART_RESET  **********************************/
+
+
+
+	/**
+	 * callback hooked into 'AHEE__EE_Session__reset_cart__before_reset'
+	 *
+	 * @param EE_Session $session
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function session_cart_reset(EE_Session $session)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		// first check of the session has a valid Checkout object
+		$checkout = $session->checkout();
+		if ($checkout instanceof EE_Checkout) {
+			// and use that to clear ticket reservations because it will update the associated registration meta data
+			EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
+			return;
+		}
+		$cart = $session->cart();
+		if ($cart instanceof EE_Cart) {
+			if (self::debug) {
+				echo '<br /><br /> cart instance of EE_Cart: ';
+			}
+			EED_Ticket_Sales_Monitor::instance()->_session_cart_reset($cart, $session);
+		} else {
+			if (self::debug) {
+				echo '<br /><br /> invalid EE_Cart: ';
+				var_export($cart, true);
+			}
+		}
+	}
+
+
+
+	/**
+	 * releases reserved tickets in the EE_Cart
+	 *
+	 * @param EE_Cart $cart
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _session_cart_reset(EE_Cart $cart, EE_Session $session)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		EE_Registry::instance()->load_helper('Line_Item');
+		$ticket_line_items = $cart->get_tickets();
+		if (empty($ticket_line_items)) {
+			return;
+		}
+		foreach ($ticket_line_items as $ticket_line_item) {
+			if (self::debug) {
+				echo '<br /> . ticket_line_item->ID(): ' . $ticket_line_item->ID();
+			}
+			if ($ticket_line_item instanceof EE_Line_Item && $ticket_line_item->OBJ_type() === 'Ticket') {
+				if (self::debug) {
+					echo '<br /> . . ticket_line_item->OBJ_ID(): ' . $ticket_line_item->OBJ_ID();
+				}
+				$ticket = EEM_Ticket::instance()->get_one_by_ID($ticket_line_item->OBJ_ID());
+				if ($ticket instanceof EE_Ticket) {
+					if (self::debug) {
+						echo '<br /> . . ticket->ID(): ' . $ticket->ID();
+						echo '<br /> . . ticket_line_item->quantity(): ' . $ticket_line_item->quantity();
+					}
+					$ticket->add_extra_meta(
+						EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+						__LINE__ . ') ' . __METHOD__ . '() SID = ' . $session->id()
+					);
+					$this->_release_reserved_ticket($ticket, $ticket_line_item->quantity());
+				}
+			}
+		}
+		if (self::debug) {
+			echo '<br /><br /> RESET COMPLETED ';
+		}
+	}
+
+
+
+	/********************************** SESSION_CHECKOUT_RESET  **********************************/
+
+
+
+	/**
+	 * callback hooked into 'AHEE__EE_Session__reset_checkout__before_reset'
+	 *
+	 * @param EE_Session $session
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	public static function session_checkout_reset(EE_Session $session)
+	{
+		$checkout = $session->checkout();
+		if ($checkout instanceof EE_Checkout) {
+			EED_Ticket_Sales_Monitor::instance()->_session_checkout_reset($checkout);
+		}
+	}
+
+
+
+	/**
+	 * releases reserved tickets for the EE_Checkout->transaction
+	 *
+	 * @param EE_Checkout $checkout
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	protected function _session_checkout_reset(EE_Checkout $checkout)
+	{
+		if (self::debug) {
+			echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+		}
+		// we want to release the each registration's reserved tickets if the session was cleared, but not if this is a revisit
+		if ($checkout->revisit || ! $checkout->transaction instanceof EE_Transaction) {
+			return;
+		}
+		$this->_release_all_reserved_tickets_for_transaction($checkout->transaction);
+	}
+
+
+
+	/********************************** SESSION_EXPIRED_RESET  **********************************/
+
+
+
+	/**
+	 * @param    EE_Session $session
+	 * @return    void
+	 */
+	public static function session_expired_reset(EE_Session $session)
+	{
+	}
+
+
+
+	/********************************** PROCESS_ABANDONED_TRANSACTIONS  **********************************/
+
+
+
+	/**
+	 * releases reserved tickets for all registrations of an ABANDONED EE_Transaction
+	 * by default, will NOT release tickets for free transactions, or any that have received a payment
+	 *
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	public static function process_abandoned_transactions(EE_Transaction $transaction)
+	{
+		// is this TXN free or has any money been paid towards this TXN? If so, then leave it alone
+		if ($transaction->is_free() || $transaction->paid() > 0) {
+			if (self::debug) {
+				// DEBUG LOG
+				EEH_Debug_Tools::log(
+					__CLASS__,
+					__FUNCTION__,
+					__LINE__,
+					array($transaction),
+					false,
+					'EE_Transaction: ' . $transaction->ID()
+				);
+			}
+			return;
+		}
+		// have their been any successful payments made ?
+		$payments = $transaction->payments();
+		foreach ($payments as $payment) {
+			if ($payment instanceof EE_Payment && $payment->status() === EEM_Payment::status_id_approved) {
+				if (self::debug) {
+					// DEBUG LOG
+					EEH_Debug_Tools::log(
+						__CLASS__,
+						__FUNCTION__,
+						__LINE__,
+						array($payment),
+						false,
+						'EE_Transaction: ' . $transaction->ID()
+					);
+				}
+				return;
+			}
+		}
+		// since you haven't even attempted to pay for your ticket...
+		EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
+	}
+
+
+
+	/********************************** PROCESS_FAILED_TRANSACTIONS  **********************************/
+
+
+
+	/**
+	 * releases reserved tickets for absolutely ALL registrations of a FAILED EE_Transaction
+	 *
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidSessionDataException
+	 */
+	public static function process_failed_transactions(EE_Transaction $transaction)
+	{
+		// since you haven't even attempted to pay for your ticket...
+		EED_Ticket_Sales_Monitor::instance()->_release_all_reserved_tickets_for_transaction($transaction);
+	}
+
+
+
+	/********************************** RESET RESERVATION COUNTS  *********************************/
+
+
+
+	/**
+	 * Resets all ticket and datetime reserved counts to zero
+	 * Tickets that are currently associated with a Transaction that is in progress
+	 *
+	 * @throws EE_Error
+	 * @throws DomainException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 * @throws UnexpectedEntityException
+	 */
+	public static function reset_reservation_counts()
+	{
+		/** @var EE_Line_Item[] $valid_reserved_tickets */
+		$valid_reserved_tickets = array();
+		/** @var EE_Transaction[] $transactions_not_in_progress */
+		$transactions_not_in_progress = EEM_Transaction::instance()->get_transactions_not_in_progress();
+		foreach ($transactions_not_in_progress as $transaction) {
+			// if this TXN has been fully completed, then skip it
+			if ($transaction->reg_step_completed('finalize_registration')) {
+				continue;
+			}
+			$total_line_item = $transaction->total_line_item();
+			// $transaction_in_progress->line
+			if (! $total_line_item instanceof EE_Line_Item) {
+				throw new DomainException(
+					esc_html__(
+						'Transaction does not have a valid Total Line Item associated with it.',
+						'event_espresso'
+					)
+				);
+			}
+			$valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
+				$total_line_item
+			);
+		}
+		$total_line_items = EEM_Line_Item::instance()->get_total_line_items_for_active_carts();
+		foreach ($total_line_items as $total_line_item) {
+			$valid_reserved_tickets += EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total(
+				$total_line_item
+			);
+		}
+		$tickets_with_reservations = EEM_Ticket::instance()->get_tickets_with_reservations();
+		return EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
+			$tickets_with_reservations,
+			$valid_reserved_tickets,
+			__FUNCTION__
+		);
+	}
+
+
+
+	/**
+	 * @param EE_Line_Item $total_line_item
+	 * @return EE_Line_Item[]
+	 */
+	private static function get_ticket_line_items_for_grand_total(EE_Line_Item $total_line_item)
+	{
+		/** @var EE_Line_Item[] $valid_reserved_tickets */
+		$valid_reserved_tickets = array();
+		$ticket_line_items      = EEH_Line_Item::get_ticket_line_items($total_line_item);
+		foreach ($ticket_line_items as $ticket_line_item) {
+			if ($ticket_line_item instanceof EE_Line_Item) {
+				$valid_reserved_tickets[] = $ticket_line_item;
+			}
+		}
+		return $valid_reserved_tickets;
+	}
+
+
+
+	/**
+	 * @param EE_Ticket[]    $tickets_with_reservations
+	 * @param EE_Line_Item[] $valid_reserved_ticket_line_items
+	 * @return int
+	 * @throws UnexpectedEntityException
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	private static function release_reservations_for_tickets(
+		array $tickets_with_reservations,
+		array $valid_reserved_ticket_line_items = array(),
+		$source
+	) {
+		$total_tickets_released = 0;
+		$sold_out_events = array();
+		foreach ($tickets_with_reservations as $ticket_with_reservations) {
+			if (! $ticket_with_reservations instanceof EE_Ticket) {
+				continue;
+			}
+			$reserved_qty = $ticket_with_reservations->reserved();
+			foreach ($valid_reserved_ticket_line_items as $valid_reserved_ticket_line_item) {
+				if (
+					$valid_reserved_ticket_line_item instanceof EE_Line_Item
+					&& $valid_reserved_ticket_line_item->OBJ_ID() === $ticket_with_reservations->ID()
+				) {
+					$reserved_qty -= $valid_reserved_ticket_line_item->quantity();
+				}
+			}
+			if ($reserved_qty > 0) {
+				$ticket_with_reservations->add_extra_meta(
+					EE_Ticket::META_KEY_TICKET_RESERVATIONS,
+					__LINE__ . ') ' . $source . '()'
+				);
+				$ticket_with_reservations->decrease_reserved($reserved_qty, true, 'TicketSalesMonitor:'. __LINE__);
+				$ticket_with_reservations->save();
+				$total_tickets_released += $reserved_qty;
+				$event = $ticket_with_reservations->get_related_event();
+				// track sold out events
+				if ($event instanceof EE_Event && $event->is_sold_out()) {
+					$sold_out_events[] = $event;
+				}
+			}
+		}
+		// double check whether sold out events should remain sold out after releasing tickets
+		if($sold_out_events !== array()){
+			foreach ($sold_out_events as $sold_out_event) {
+				/** @var EE_Event $sold_out_event */
+				$sold_out_event->perform_sold_out_status_check();
+			}
+		}
+		return $total_tickets_released;
+	}
+
+
+
+	/********************************** SHUTDOWN  **********************************/
+
+
+
+	/**
+	 * @return false|int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function clear_expired_line_items_with_no_transaction()
+	{
+		/** @type WPDB $wpdb */
+		global $wpdb;
+		/** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
+		$session_lifespan = LoaderFactory::getLoader()->getShared(
+			'EventEspresso\core\domain\values\session\SessionLifespan'
+		);
+		return $wpdb->query(
+			$wpdb->prepare(
+				'DELETE FROM ' . EEM_Line_Item::instance()->table() . '
                 WHERE TXN_ID = 0 AND LIN_timestamp <= %s',
-                // use GMT time because that's what LIN_timestamps are in
-                date('Y-m-d H:i:s', $session_lifespan->expiration())
-            )
-        );
-    }
+				// use GMT time because that's what LIN_timestamps are in
+				date('Y-m-d H:i:s', $session_lifespan->expiration())
+			)
+		);
+	}
 
 }
 // End of file EED_Ticket_Sales_Monitor.module.php

Spacing +65 added lines, -65 removed lines

@@ -24,7 +24,7 @@ 
 class EED_Ticket_Sales_Monitor extends EED_Module
 {
 
-    const debug = false;    //	true false
+    const debug = false; //	true false
 
     /**
      * an array of raw ticket data from EED_Ticket_Selector
@@ -213,17 +213,17 @@ 
             /** @var EE_Line_Item $total_line_item */
             $ticket_line_items = EED_Ticket_Sales_Monitor::get_ticket_line_items_for_grand_total($total_line_item);
             foreach ($ticket_line_items as $ticket_line_item) {
-                if (! $ticket_line_item instanceof EE_Line_Item) {
+                if ( ! $ticket_line_item instanceof EE_Line_Item) {
                     continue;
                 }
                 if ($total_line_item->timestamp(true) <= $session_lifespan->expiration()) {
-                    $expired_ticket_IDs[ $ticket_line_item->OBJ_ID() ] = $ticket_line_item->OBJ_ID();
+                    $expired_ticket_IDs[$ticket_line_item->OBJ_ID()] = $ticket_line_item->OBJ_ID();
                 } else {
-                    $valid_ticket_line_items[ $ticket_line_item->OBJ_ID() ] = $ticket_line_item;
+                    $valid_ticket_line_items[$ticket_line_item->OBJ_ID()] = $ticket_line_item;
                 }
             }
         }
-        if (! empty($expired_ticket_IDs)) {
+        if ( ! empty($expired_ticket_IDs)) {
             EED_Ticket_Sales_Monitor::release_reservations_for_tickets(
                 \EEM_Ticket::instance()->get_tickets_with_IDs($expired_ticket_IDs),
                 $valid_ticket_line_items,
@@ -266,8 +266,8 @@ 
             $qty = EED_Ticket_Sales_Monitor::instance()->_validate_ticket_sale($ticket, $qty);
         }
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '()';
-            echo '<br /><br /><b> RETURNED QTY: ' . $qty . '</b>';
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'()';
+            echo '<br /><br /><b> RETURNED QTY: '.$qty.'</b>';
         }
         return $qty;
     }
@@ -286,36 +286,36 @@ 
     protected function _validate_ticket_sale(EE_Ticket $ticket, $qty = 1)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
         }
-        if (! $ticket instanceof EE_Ticket) {
+        if ( ! $ticket instanceof EE_Ticket) {
             return 0;
         }
         if (self::debug) {
-            echo '<br /><b> . ticket->ID: ' . $ticket->ID() . '</b>';
-            echo '<br /> . original ticket->reserved: ' . $ticket->reserved();
+            echo '<br /><b> . ticket->ID: '.$ticket->ID().'</b>';
+            echo '<br /> . original ticket->reserved: '.$ticket->reserved();
         }
         $ticket->refresh_from_db();
         // first let's determine the ticket availability based on sales
         $available = $ticket->qty('saleable');
         if (self::debug) {
-            echo '<br /> . . . ticket->qty: ' . $ticket->qty();
-            echo '<br /> . . . ticket->sold: ' . $ticket->sold();
-            echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
-            echo '<br /> . . . ticket->qty(saleable): ' . $ticket->qty('saleable');
-            echo '<br /> . . . available: ' . $available;
+            echo '<br /> . . . ticket->qty: '.$ticket->qty();
+            echo '<br /> . . . ticket->sold: '.$ticket->sold();
+            echo '<br /> . . . ticket->reserved: '.$ticket->reserved();
+            echo '<br /> . . . ticket->qty(saleable): '.$ticket->qty('saleable');
+            echo '<br /> . . . available: '.$available;
         }
         if ($available < 1) {
             $this->_ticket_sold_out($ticket);
             return 0;
         }
         if (self::debug) {
-            echo '<br /> . . . qty: ' . $qty;
+            echo '<br /> . . . qty: '.$qty;
         }
         if ($available < $qty) {
             $qty = $available;
             if (self::debug) {
-                echo '<br /> . . . QTY ADJUSTED: ' . $qty;
+                echo '<br /> . . . QTY ADJUSTED: '.$qty;
             }
             $this->_ticket_quantity_decremented($ticket);
         }
@@ -336,9 +336,9 @@ 
     protected function _reserve_ticket(EE_Ticket $ticket, $quantity = 1)
     {
         if (self::debug) {
-            echo '<br /><br /> . . . INCREASE RESERVED: ' . $quantity;
+            echo '<br /><br /> . . . INCREASE RESERVED: '.$quantity;
         }
-        $ticket->increase_reserved($quantity, 'TicketSalesMonitor:'. __LINE__);
+        $ticket->increase_reserved($quantity, 'TicketSalesMonitor:'.__LINE__);
         return $ticket->save();
     }
 
@@ -353,12 +353,12 @@ 
     protected function _release_reserved_ticket(EE_Ticket $ticket, $quantity = 1)
     {
         if (self::debug) {
-            echo '<br /> . . . ticket->ID: ' . $ticket->ID();
-            echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
+            echo '<br /> . . . ticket->ID: '.$ticket->ID();
+            echo '<br /> . . . ticket->reserved: '.$ticket->reserved();
         }
-        $ticket->decrease_reserved($quantity, true, 'TicketSalesMonitor:'. __LINE__);
+        $ticket->decrease_reserved($quantity, true, 'TicketSalesMonitor:'.__LINE__);
         if (self::debug) {
-            echo '<br /> . . . ticket->reserved: ' . $ticket->reserved();
+            echo '<br /> . . . ticket->reserved: '.$ticket->reserved();
         }
         return $ticket->save() ? 1 : 0;
     }
@@ -376,8 +376,8 @@ 
     protected function _ticket_sold_out(EE_Ticket $ticket)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
+            echo '<br /> . . ticket->name: '.$this->_get_ticket_and_event_name($ticket);
         }
         $this->sold_out_tickets[] = $this->_get_ticket_and_event_name($ticket);
     }
@@ -395,8 +395,8 @@ 
     protected function _ticket_quantity_decremented(EE_Ticket $ticket)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . . ticket->name: ' . $this->_get_ticket_and_event_name($ticket);
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
+            echo '<br /> . . ticket->name: '.$this->_get_ticket_and_event_name($ticket);
         }
         $this->decremented_tickets[] = $this->_get_ticket_and_event_name($ticket);
     }
@@ -449,7 +449,7 @@ 
         if ($ticket instanceof EE_Ticket) {
             $ticket->add_extra_meta(
                 EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                __LINE__ . ') ' . __METHOD__ . '()'
+                __LINE__.') '.__METHOD__.'()'
             );
             if ($quantity > 0) {
                 EED_Ticket_Sales_Monitor::instance()->_reserve_ticket($ticket, $quantity);
@@ -473,7 +473,7 @@ 
     {
         $ticket->add_extra_meta(
             EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-            __LINE__ . ') ' . __METHOD__ . '()'
+            __LINE__.') '.__METHOD__.'()'
         );
         EED_Ticket_Sales_Monitor::instance()->_release_reserved_ticket($ticket, $quantity);
     }
@@ -510,18 +510,18 @@ 
     protected function _post_notices()
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
         }
         $refresh_msg    = '';
         $none_added_msg = '';
         if (defined('DOING_AJAX') && DOING_AJAX) {
-            $refresh_msg    = __(
+            $refresh_msg = __(
                 'Please refresh the page to view updated ticket quantities.',
                 'event_espresso'
             );
             $none_added_msg = __('No tickets were added for the event.', 'event_espresso');
         }
-        if (! empty($this->sold_out_tickets)) {
+        if ( ! empty($this->sold_out_tickets)) {
             EE_Error::add_attention(
                 sprintf(
                     apply_filters(
@@ -544,7 +544,7 @@ 
             // and reset the cart
             EED_Ticket_Sales_Monitor::session_cart_reset(EE_Registry::instance()->SSN);
         }
-        if (! empty($this->decremented_tickets)) {
+        if ( ! empty($this->decremented_tickets)) {
             EE_Error::add_attention(
                 sprintf(
                     apply_filters(
@@ -582,9 +582,9 @@ 
     protected function _release_all_reserved_tickets_for_transaction(EE_Transaction $transaction)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . transaction->ID: ' . $transaction->ID();
-            echo '<br /> . TXN status_ID: ' . $transaction->status_ID();
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
+            echo '<br /> . transaction->ID: '.$transaction->ID();
+            echo '<br /> . TXN status_ID: '.$transaction->status_ID();
         }
         // check if 'finalize_registration' step has been completed...
         $finalized = $transaction->reg_step_completed('finalize_registration');
@@ -596,13 +596,13 @@ 
                 __LINE__,
                 array('finalized' => $finalized),
                 false,
-                'EE_Transaction: ' . $transaction->ID()
+                'EE_Transaction: '.$transaction->ID()
             );
         }
         // how many tickets were released
         $count = 0;
         if (self::debug) {
-            echo '<br /> . . . TXN finalized: ' . $finalized;
+            echo '<br /> . . . TXN finalized: '.$finalized;
         }
         $release_tickets_with_TXN_status = array(
             EEM_Transaction::failed_status_code,
@@ -611,28 +611,28 @@ 
         );
         $events = array();
         // if the session is getting cleared BEFORE the TXN has been finalized or the transaction is not completed
-        if (! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
+        if ( ! $finalized || in_array($transaction->status_ID(), $release_tickets_with_TXN_status, true)) {
             // cancel any reserved tickets for registrations that were not approved
             $registrations = $transaction->registrations();
             if (self::debug) {
-                echo '<br /> . . . # registrations: ' . count($registrations);
+                echo '<br /> . . . # registrations: '.count($registrations);
                 $reg    = reset($registrations);
                 $ticket = $reg->ticket();
                 if ($ticket instanceof EE_Ticket) {
                     $ticket->add_extra_meta(
                         EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') Release All Tickets TXN:' . $transaction->ID()
+                        __LINE__.') Release All Tickets TXN:'.$transaction->ID()
                     );
                 }
             }
-            if (! empty($registrations)) {
+            if ( ! empty($registrations)) {
                 foreach ($registrations as $registration) {
                     if (
                         $registration instanceof EE_Registration
                         && $this->_release_reserved_ticket_for_registration($registration, $transaction)
                     ) {
                         $count++;
-                        $events[ $registration->event_ID() ] = $registration->event();
+                        $events[$registration->event_ID()] = $registration->event();
                     }
                 }
             }
@@ -663,10 +663,10 @@ 
     ) {
         $STS_ID = $transaction->status_ID();
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
-            echo '<br /> . . registration->ID: ' . $registration->ID();
-            echo '<br /> . . registration->status_ID: ' . $registration->status_ID();
-            echo '<br /> . . transaction->status_ID(): ' . $STS_ID;
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
+            echo '<br /> . . registration->ID: '.$registration->ID();
+            echo '<br /> . . registration->status_ID: '.$registration->status_ID();
+            echo '<br /> . . transaction->status_ID(): '.$STS_ID;
         }
         if (
             // release Tickets for Failed Transactions and Abandoned Transactions
@@ -684,7 +684,7 @@ 
                 echo '<br /> . . . registration HAS_RESERVED_TICKET_KEY: ';
                 var_dump($rsrvd);
             }
-            $registration->release_reserved_ticket(true, 'TicketSalesMonitor:'. __LINE__);
+            $registration->release_reserved_ticket(true, 'TicketSalesMonitor:'.__LINE__);
             return 1;
         }
         return 0;
@@ -710,7 +710,7 @@ 
     public static function session_cart_reset(EE_Session $session)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
         }
         // first check of the session has a valid Checkout object
         $checkout = $session->checkout();
@@ -749,7 +749,7 @@ 
     protected function _session_cart_reset(EE_Cart $cart, EE_Session $session)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
         }
         EE_Registry::instance()->load_helper('Line_Item');
         $ticket_line_items = $cart->get_tickets();
@@ -758,21 +758,21 @@ 
         }
         foreach ($ticket_line_items as $ticket_line_item) {
             if (self::debug) {
-                echo '<br /> . ticket_line_item->ID(): ' . $ticket_line_item->ID();
+                echo '<br /> . ticket_line_item->ID(): '.$ticket_line_item->ID();
             }
             if ($ticket_line_item instanceof EE_Line_Item && $ticket_line_item->OBJ_type() === 'Ticket') {
                 if (self::debug) {
-                    echo '<br /> . . ticket_line_item->OBJ_ID(): ' . $ticket_line_item->OBJ_ID();
+                    echo '<br /> . . ticket_line_item->OBJ_ID(): '.$ticket_line_item->OBJ_ID();
                 }
                 $ticket = EEM_Ticket::instance()->get_one_by_ID($ticket_line_item->OBJ_ID());
                 if ($ticket instanceof EE_Ticket) {
                     if (self::debug) {
-                        echo '<br /> . . ticket->ID(): ' . $ticket->ID();
-                        echo '<br /> . . ticket_line_item->quantity(): ' . $ticket_line_item->quantity();
+                        echo '<br /> . . ticket->ID(): '.$ticket->ID();
+                        echo '<br /> . . ticket_line_item->quantity(): '.$ticket_line_item->quantity();
                     }
                     $ticket->add_extra_meta(
                         EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                        __LINE__ . ') ' . __METHOD__ . '() SID = ' . $session->id()
+                        __LINE__.') '.__METHOD__.'() SID = '.$session->id()
                     );
                     $this->_release_reserved_ticket($ticket, $ticket_line_item->quantity());
                 }
@@ -818,7 +818,7 @@ 
     protected function _session_checkout_reset(EE_Checkout $checkout)
     {
         if (self::debug) {
-            echo '<br /><br /> ' . __LINE__ . ') ' . __METHOD__ . '() ';
+            echo '<br /><br /> '.__LINE__.') '.__METHOD__.'() ';
         }
         // we want to release the each registration's reserved tickets if the session was cleared, but not if this is a revisit
         if ($checkout->revisit || ! $checkout->transaction instanceof EE_Transaction) {
@@ -868,7 +868,7 @@ 
                     __LINE__,
                     array($transaction),
                     false,
-                    'EE_Transaction: ' . $transaction->ID()
+                    'EE_Transaction: '.$transaction->ID()
                 );
             }
             return;
@@ -885,7 +885,7 @@ 
                         __LINE__,
                         array($payment),
                         false,
-                        'EE_Transaction: ' . $transaction->ID()
+                        'EE_Transaction: '.$transaction->ID()
                     );
                 }
                 return;
@@ -945,7 +945,7 @@ 
             }
             $total_line_item = $transaction->total_line_item();
             // $transaction_in_progress->line
-            if (! $total_line_item instanceof EE_Line_Item) {
+            if ( ! $total_line_item instanceof EE_Line_Item) {
                 throw new DomainException(
                     esc_html__(
                         'Transaction does not have a valid Total Line Item associated with it.',
@@ -1008,7 +1008,7 @@ 
         $total_tickets_released = 0;
         $sold_out_events = array();
         foreach ($tickets_with_reservations as $ticket_with_reservations) {
-            if (! $ticket_with_reservations instanceof EE_Ticket) {
+            if ( ! $ticket_with_reservations instanceof EE_Ticket) {
                 continue;
             }
             $reserved_qty = $ticket_with_reservations->reserved();
@@ -1023,9 +1023,9 @@ 
             if ($reserved_qty > 0) {
                 $ticket_with_reservations->add_extra_meta(
                     EE_Ticket::META_KEY_TICKET_RESERVATIONS,
-                    __LINE__ . ') ' . $source . '()'
+                    __LINE__.') '.$source.'()'
                 );
-                $ticket_with_reservations->decrease_reserved($reserved_qty, true, 'TicketSalesMonitor:'. __LINE__);
+                $ticket_with_reservations->decrease_reserved($reserved_qty, true, 'TicketSalesMonitor:'.__LINE__);
                 $ticket_with_reservations->save();
                 $total_tickets_released += $reserved_qty;
                 $event = $ticket_with_reservations->get_related_event();
@@ -1036,7 +1036,7 @@ 
             }
         }
         // double check whether sold out events should remain sold out after releasing tickets
-        if($sold_out_events !== array()){
+        if ($sold_out_events !== array()) {
             foreach ($sold_out_events as $sold_out_event) {
                 /** @var EE_Event $sold_out_event */
                 $sold_out_event->perform_sold_out_status_check();
@@ -1068,7 +1068,7 @@ 
         );
         return $wpdb->query(
             $wpdb->prepare(
-                'DELETE FROM ' . EEM_Line_Item::instance()->table() . '
+                'DELETE FROM '.EEM_Line_Item::instance()->table().'
                 WHERE TXN_ID = 0 AND LIN_timestamp <= %s',
                 // use GMT time because that's what LIN_timestamps are in
                 date('Y-m-d H:i:s', $session_lifespan->expiration())

admin_pages/transactions/EE_Admin_Transactions_List_Table.class.php

Indentation +630 added lines, -630 removed lines

@@ -17,121 +17,121 @@ 
 class EE_Admin_Transactions_List_Table extends EE_Admin_List_Table
 {
 
-    /**
-     * @var SessionLifespan $session_lifespan
-     */
-    private $session_lifespan;
-
-    private $_status;
-
-
-    /**
-     * @param \Transactions_Admin_Page $admin_page
-     * @param SessionLifespan          $lifespan
-     */
-    public function __construct(\Transactions_Admin_Page $admin_page, SessionLifespan $lifespan)
-    {
-        parent::__construct($admin_page);
-        $this->session_lifespan = $lifespan;
-        $this->_status = $this->_admin_page->get_transaction_status_array();
-    }
-
-
-    /**
-     *_setup_data
-     */
-    protected function _setup_data()
-    {
-        $this->_data           = $this->_admin_page->get_transactions($this->_per_page);
-        $status                = ! empty($this->_req_data['status']) ? $this->_req_data['status'] : 'all';
-        $this->_all_data_count = $this->_admin_page->get_transactions($this->_per_page, true, $status);
-    }
-
-
-    /**
-     *_set_properties
-     */
-    protected function _set_properties()
-    {
-        $this->_wp_list_args = array(
-            'singular' => __('transaction', 'event_espresso'),
-            'plural'   => __('transactions', 'event_espresso'),
-            'ajax'     => true,
-            'screen'   => $this->_admin_page->get_current_screen()->id,
-        );
-        $ID_column_name      = __('ID', 'event_espresso');
-        $ID_column_name      .= ' : <span class="show-on-mobile-view-only" style="float:none">';
-        $ID_column_name      .= __('Transaction Date', 'event_espresso');
-        $ID_column_name      .= '</span> ';
-        $this->_columns      = array(
-            'TXN_ID'        => $ID_column_name,
-            'TXN_timestamp' => __('Transaction Date', 'event_espresso'),
-            'TXN_total'     => __('Total', 'event_espresso'),
-            'TXN_paid'      => __('Paid', 'event_espresso'),
-            'ATT_fname'     => __('Primary Registrant', 'event_espresso'),
-            'event_name'    => __('Event', 'event_espresso'),
-            'actions'       => __('Actions', 'event_espresso'),
-        );
-
-        $this->_sortable_columns = array(
-            'TXN_ID'        => array('TXN_ID' => false),
-            'event_name'    => array('event_name' => false),
-            'ATT_fname'     => array('ATT_fname' => false),
-            'TXN_timestamp' => array('TXN_timestamp' => true) //true means its already sorted
-        );
-
-        $this->_primary_column = 'TXN_ID';
-
-        $this->_hidden_columns = array();
-    }
-
-
-    /**
-     * This simply sets up the row class for the table rows.
-     * Allows for easier overriding of child methods for setting up sorting.
-     *
-     * @param  EE_Transaction $transaction the current item
-     * @return string
-     * @throws \EE_Error
-     */
-    protected function _get_row_class($transaction)
-    {
-        $class = parent::_get_row_class($transaction);
-        //add status class
-        $class .= ' ee-status-strip txn-status-' . $transaction->status_ID();
-        if ($this->_has_checkbox_column) {
-            $class .= ' has-checkbox-column';
-        }
-        return $class;
-    }
-
-
-    /**
-     * _get_table_filters
-     * We use this to assemble and return any filters that are associated with this table that help further refine what
-     * get's shown in the table.
-     *
-     * @abstract
-     * @access protected
-     * @return array
-     */
-    protected function _get_table_filters()
-    {
-        $filters    = array();
-        $start_date = isset($this->_req_data['txn-filter-start-date'])
-            ? wp_strip_all_tags($this->_req_data['txn-filter-start-date'])
-            : date(
-                'm/d/Y',
-                strtotime('-10 year')
-            );
-        $end_date   = isset($this->_req_data['txn-filter-end-date'])
-            ? wp_strip_all_tags($this->_req_data['txn-filter-end-date'])
-            : date(
-                'm/d/Y',
-                current_time('timestamp')
-            );
-        ob_start();
-        ?>
+	/**
+	 * @var SessionLifespan $session_lifespan
+	 */
+	private $session_lifespan;
+
+	private $_status;
+
+
+	/**
+	 * @param \Transactions_Admin_Page $admin_page
+	 * @param SessionLifespan          $lifespan
+	 */
+	public function __construct(\Transactions_Admin_Page $admin_page, SessionLifespan $lifespan)
+	{
+		parent::__construct($admin_page);
+		$this->session_lifespan = $lifespan;
+		$this->_status = $this->_admin_page->get_transaction_status_array();
+	}
+
+
+	/**
+	 *_setup_data
+	 */
+	protected function _setup_data()
+	{
+		$this->_data           = $this->_admin_page->get_transactions($this->_per_page);
+		$status                = ! empty($this->_req_data['status']) ? $this->_req_data['status'] : 'all';
+		$this->_all_data_count = $this->_admin_page->get_transactions($this->_per_page, true, $status);
+	}
+
+
+	/**
+	 *_set_properties
+	 */
+	protected function _set_properties()
+	{
+		$this->_wp_list_args = array(
+			'singular' => __('transaction', 'event_espresso'),
+			'plural'   => __('transactions', 'event_espresso'),
+			'ajax'     => true,
+			'screen'   => $this->_admin_page->get_current_screen()->id,
+		);
+		$ID_column_name      = __('ID', 'event_espresso');
+		$ID_column_name      .= ' : <span class="show-on-mobile-view-only" style="float:none">';
+		$ID_column_name      .= __('Transaction Date', 'event_espresso');
+		$ID_column_name      .= '</span> ';
+		$this->_columns      = array(
+			'TXN_ID'        => $ID_column_name,
+			'TXN_timestamp' => __('Transaction Date', 'event_espresso'),
+			'TXN_total'     => __('Total', 'event_espresso'),
+			'TXN_paid'      => __('Paid', 'event_espresso'),
+			'ATT_fname'     => __('Primary Registrant', 'event_espresso'),
+			'event_name'    => __('Event', 'event_espresso'),
+			'actions'       => __('Actions', 'event_espresso'),
+		);
+
+		$this->_sortable_columns = array(
+			'TXN_ID'        => array('TXN_ID' => false),
+			'event_name'    => array('event_name' => false),
+			'ATT_fname'     => array('ATT_fname' => false),
+			'TXN_timestamp' => array('TXN_timestamp' => true) //true means its already sorted
+		);
+
+		$this->_primary_column = 'TXN_ID';
+
+		$this->_hidden_columns = array();
+	}
+
+
+	/**
+	 * This simply sets up the row class for the table rows.
+	 * Allows for easier overriding of child methods for setting up sorting.
+	 *
+	 * @param  EE_Transaction $transaction the current item
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	protected function _get_row_class($transaction)
+	{
+		$class = parent::_get_row_class($transaction);
+		//add status class
+		$class .= ' ee-status-strip txn-status-' . $transaction->status_ID();
+		if ($this->_has_checkbox_column) {
+			$class .= ' has-checkbox-column';
+		}
+		return $class;
+	}
+
+
+	/**
+	 * _get_table_filters
+	 * We use this to assemble and return any filters that are associated with this table that help further refine what
+	 * get's shown in the table.
+	 *
+	 * @abstract
+	 * @access protected
+	 * @return array
+	 */
+	protected function _get_table_filters()
+	{
+		$filters    = array();
+		$start_date = isset($this->_req_data['txn-filter-start-date'])
+			? wp_strip_all_tags($this->_req_data['txn-filter-start-date'])
+			: date(
+				'm/d/Y',
+				strtotime('-10 year')
+			);
+		$end_date   = isset($this->_req_data['txn-filter-end-date'])
+			? wp_strip_all_tags($this->_req_data['txn-filter-end-date'])
+			: date(
+				'm/d/Y',
+				current_time('timestamp')
+			);
+		ob_start();
+		?>
         <label for="txn-filter-start-date">Display Transactions from </label>
         <input id="txn-filter-start-date" class="datepicker" type="text" value="<?php echo $start_date; ?>"
                name="txn-filter-start-date" size="15"/>
@@ -139,551 +139,551 @@ 
         <input id="txn-filter-end-date" class="datepicker" type="text" value="<?php echo $end_date; ?>"
                name="txn-filter-end-date" size="15"/>
         <?php
-        $filters[] = ob_get_contents();
-        ob_end_clean();
-        return $filters;
-    }
-
-
-    /**
-     *_add_view_counts
-     */
-    protected function _add_view_counts()
-    {
-        $this->_views['all']['count']       = $this->_admin_page->get_transactions($this->_per_page, true, 'all');
-        $this->_views['abandoned']['count'] = $this->_admin_page->get_transactions($this->_per_page, true, 'abandoned');
-        $this->_views['failed']['count']    = $this->_admin_page->get_transactions($this->_per_page, true, 'failed');
-    }
-
-
-    /**
-     *    column TXN_ID
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws \EE_Error
-     */
-    public function column_TXN_ID(EE_Transaction $transaction)
-    {
-        $view_lnk_url = EE_Admin_Page::add_query_args_and_nonce(array(
-            'action' => 'view_transaction',
-            'TXN_ID' => $transaction->ID(),
-        ), TXN_ADMIN_URL);
-        $content      = '<a href="' . $view_lnk_url . '"'
-                        . ' title="' . esc_attr__('Go to Transaction Details', 'event_espresso') . '">'
-                        . $transaction->ID()
-                        . '</a>';
-
-        //txn timestamp
-        $content .= '  <span class="show-on-mobile-view-only">' . $this->_get_txn_timestamp($transaction) . '</span>';
-        return $content;
-    }
-
-
-    /**
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _get_txn_timestamp(EE_Transaction $transaction)
-    {
-        // is TXN less than 2 hours old ?
-        if (($transaction->failed() || $transaction->is_abandoned())
-            && $this->session_lifespan->expiration() < $transaction->datetime(false, true)
-        ) {
-            $timestamp = esc_html__('TXN in progress...', 'event_espresso');
-        } else {
-            $timestamp = $transaction->get_i18n_datetime('TXN_timestamp');
-        }
-        return $timestamp;
-    }
-
-
-    /**
-     *    column_cb
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws \EE_Error
-     */
-    public function column_cb($transaction)
-    {
-        return sprintf(
-            '<input type="checkbox" name="%1$s[]" value="%2$s" />',
-            $this->_wp_list_args['singular'],
-            $transaction->ID()
-        );
-    }
-
-
-    /**
-     *    column_TXN_timestamp
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws \EE_Error
-     */
-    public function column_TXN_timestamp(EE_Transaction $transaction)
-    {
-        $view_lnk_url = EE_Admin_Page::add_query_args_and_nonce(array(
-            'action' => 'view_transaction',
-            'TXN_ID' => $transaction->ID(),
-        ), TXN_ADMIN_URL);
-        $txn_date     = '<a href="' . $view_lnk_url . '"'
-                        . ' title="'
-                        . esc_attr__('View Transaction Details for TXN #', 'event_espresso') . $transaction->ID() . '">'
-                        . $this->_get_txn_timestamp($transaction)
-                        . '</a>';
-        //status
-        $txn_date .= '<br><span class="ee-status-text-small">'
-                     . EEH_Template::pretty_status(
-                         $transaction->status_ID(),
-                         false,
-                         'sentence'
-                     )
-                     . '</span>';
-        return $txn_date;
-    }
-
-
-    /**
-     *    column_TXN_total
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws \EE_Error
-     */
-    public function column_TXN_total(EE_Transaction $transaction)
-    {
-        if ($transaction->get('TXN_total') > 0) {
-            return '<span class="txn-pad-rght">'
-                   . apply_filters(
-                       'FHEE__EE_Admin_Transactions_List_Table__column_TXN_total__TXN_total',
-                       $transaction->get_pretty('TXN_total'),
-                       $transaction
-                   )
-                   . '</span>';
-        } else {
-            return '<span class="txn-overview-free-event-spn">' . esc_html__('free', 'event_espresso') . '</span>';
-        }
-    }
-
-
-    /**
-     *    column_TXN_paid
-     *
-     * @param \EE_Transaction $transaction
-     * @return mixed|string
-     * @throws \EE_Error
-     */
-    public function column_TXN_paid(EE_Transaction $transaction)
-    {
-        $transaction_total = $transaction->get('TXN_total');
-        $transaction_paid  = $transaction->get('TXN_paid');
-
-        if (\EEH_Money::compare_floats($transaction_total, 0, '>')) {
-            // monies owing
-            $span_class = 'txn-overview-part-payment-spn';
-            if (\EEH_Money::compare_floats($transaction_paid, $transaction_total, '>=')) {
-                // paid in full
-                $span_class = 'txn-overview-full-payment-spn';
-            } elseif (\EEH_Money::compare_floats($transaction_paid, 0, '==')) {
-                // no payments made
-                $span_class = 'txn-overview-no-payment-spn';
-            }
-        } else {
-            $span_class       = 'txn-overview-free-event-spn';
-            $transaction_paid = 0;
-        }
-
-        $payment_method      = $transaction->payment_method();
-        $payment_method_name = $payment_method instanceof EE_Payment_Method
-            ? $payment_method->admin_name()
-            : esc_html__('Unknown', 'event_espresso');
-        $transaction_paid_content = $transaction_paid !== 0 ? $transaction->get_pretty('TXN_paid') : $transaction_paid;
-
-        $content = '<span class="' . $span_class . ' txn-pad-rght">'
-                   . $transaction_paid_content
-                   . '</span>';
-        if ($transaction_paid > 0) {
-            $content .= '<br><span class="ee-status-text-small">'
-                        . sprintf(
-                            esc_html__('...via %s', 'event_espresso'),
-                            $payment_method_name
-                        )
-                        . '</span>';
-        }
-        return $content;
-    }
-
-
-    /**
-     *    column_ATT_fname
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function column_ATT_fname(EE_Transaction $transaction)
-    {
-        $primary_reg = $transaction->primary_registration();
-        $attendee    = $primary_reg->get_first_related('Attendee');
-        if ($attendee instanceof EE_Attendee) {
-            $edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(array(
-                'action'  => 'view_registration',
-                '_REG_ID' => $primary_reg->ID(),
-            ), REG_ADMIN_URL);
-            $content      = EE_Registry::instance()->CAP->current_user_can(
-                'ee_read_registration',
-                'espresso_registrations_view_registration',
-                $primary_reg->ID()
-            )
-                ? '<a href="' . $edit_lnk_url . '"'
-                    . ' title="' . esc_attr__('View Registration Details', 'event_espresso') . '">'
-                    . $attendee->full_name()
-                    . '</a>'
-                : $attendee->full_name();
-            $content      .= '<br>' . $attendee->email();
-            return $content;
-        }
-        return $transaction->failed() || $transaction->is_abandoned()
-            ? esc_html__('no contact record.', 'event_espresso')
-            : esc_html__(
-                'No contact record, because the transaction was abandoned or the registration process failed.',
-                'event_espresso'
-            );
-    }
-
-
-    /**
-     *    column_ATT_email
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws \EE_Error
-     */
-    public function column_ATT_email(EE_Transaction $transaction)
-    {
-        $attendee = $transaction->primary_registration()->get_first_related('Attendee');
-        if (! empty($attendee)) {
-            return '<a href="mailto:' . $attendee->get('ATT_email') . '">'
-                   . $attendee->get('ATT_email')
-                   . '</a>';
-        } else {
-            return $transaction->failed() || $transaction->is_abandoned()
-                ? esc_html__('no contact record.', 'event_espresso')
-                : esc_html__(
-                    'No contact record, because the transaction was abandoned or the registration process failed.',
-                    'event_espresso'
-                );
-        }
-    }
-
-
-    /**
-     *    column_event_name
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function column_event_name(EE_Transaction $transaction)
-    {
-        $actions = array();
-        $event   = $transaction->primary_registration()->get_first_related('Event');
-        if (! empty($event)) {
-            $edit_event_url = EE_Admin_Page::add_query_args_and_nonce(
-                array('action' => 'edit', 'post' => $event->ID()),
-                EVENTS_ADMIN_URL
-            );
-            $event_name     = $event->get('EVT_name');
-
-            //filter this view by transactions for this event
-            $txn_by_event_lnk = EE_Admin_Page::add_query_args_and_nonce(array(
-                'action' => 'default',
-                'EVT_ID' => $event->ID(),
-            ));
-            if (empty($this->_req_data['EVT_ID'])
-                && EE_Registry::instance()->CAP->current_user_can(
-                    'ee_edit_event',
-                    'espresso_events_edit',
-                    $event->ID()
-                )
-            ) {
-                $actions['filter_by_event'] = '<a href="' . $txn_by_event_lnk . '"'
-                        . ' title="' . esc_attr__('Filter transactions by this event', 'event_espresso') . '">'
-                        . esc_html__('View Transactions for this event', 'event_espresso')
-                        . '</a>';
-            }
-
-            return sprintf(
-                '%1$s %2$s',
-                EE_Registry::instance()->CAP->current_user_can(
-                    'ee_edit_event',
-                    'espresso_events_edit',
-                    $event->ID()
-                )
-                    ? '<a href="' . $edit_event_url . '"'
-                        . ' title="'
-                        . sprintf(
-                            esc_attr__('Edit Event: %s', 'event_espresso'),
-                            $event->get('EVT_name')
-                        )
-                        . '">'
-                        . wp_trim_words(
-                            $event_name,
-                            30,
-                            '...'
-                        )
-                        . '</a>'
-                        : wp_trim_words($event_name, 30, '...'),
-                $this->row_actions($actions)
-            );
-        } else {
-            return esc_html__(
-                'The event associated with this transaction via the primary registration cannot be retrieved.',
-                'event_espresso'
-            );
-        }
-    }
-
-
-    /**
-     *    column_actions
-     *
-     * @param \EE_Transaction $transaction
-     * @return string
-     * @throws \EE_Error
-     */
-    public function column_actions(EE_Transaction $transaction)
-    {
-        return $this->_action_string(
-            $this->get_transaction_details_link($transaction)
-            . $this->get_invoice_link($transaction)
-            . $this->get_receipt_link($transaction)
-            . $this->get_primary_registration_details_link($transaction)
-            . $this->get_send_payment_reminder_trigger_link($transaction)
-            . $this->get_payment_overview_link($transaction)
-            . $this->get_related_messages_link($transaction),
-            $transaction,
-            'ul',
-            'txn-overview-actions-ul'
-        );
-    }
-
-
-    /**
-     * Get the transaction details link.
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     */
-    protected function get_transaction_details_link(EE_Transaction $transaction)
-    {
-        $url          = EE_Admin_Page::add_query_args_and_nonce(array(
-            'action' => 'view_transaction',
-            'TXN_ID' => $transaction->ID(),
-        ), TXN_ADMIN_URL);
-        return '
+		$filters[] = ob_get_contents();
+		ob_end_clean();
+		return $filters;
+	}
+
+
+	/**
+	 *_add_view_counts
+	 */
+	protected function _add_view_counts()
+	{
+		$this->_views['all']['count']       = $this->_admin_page->get_transactions($this->_per_page, true, 'all');
+		$this->_views['abandoned']['count'] = $this->_admin_page->get_transactions($this->_per_page, true, 'abandoned');
+		$this->_views['failed']['count']    = $this->_admin_page->get_transactions($this->_per_page, true, 'failed');
+	}
+
+
+	/**
+	 *    column TXN_ID
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function column_TXN_ID(EE_Transaction $transaction)
+	{
+		$view_lnk_url = EE_Admin_Page::add_query_args_and_nonce(array(
+			'action' => 'view_transaction',
+			'TXN_ID' => $transaction->ID(),
+		), TXN_ADMIN_URL);
+		$content      = '<a href="' . $view_lnk_url . '"'
+						. ' title="' . esc_attr__('Go to Transaction Details', 'event_espresso') . '">'
+						. $transaction->ID()
+						. '</a>';
+
+		//txn timestamp
+		$content .= '  <span class="show-on-mobile-view-only">' . $this->_get_txn_timestamp($transaction) . '</span>';
+		return $content;
+	}
+
+
+	/**
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _get_txn_timestamp(EE_Transaction $transaction)
+	{
+		// is TXN less than 2 hours old ?
+		if (($transaction->failed() || $transaction->is_abandoned())
+			&& $this->session_lifespan->expiration() < $transaction->datetime(false, true)
+		) {
+			$timestamp = esc_html__('TXN in progress...', 'event_espresso');
+		} else {
+			$timestamp = $transaction->get_i18n_datetime('TXN_timestamp');
+		}
+		return $timestamp;
+	}
+
+
+	/**
+	 *    column_cb
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function column_cb($transaction)
+	{
+		return sprintf(
+			'<input type="checkbox" name="%1$s[]" value="%2$s" />',
+			$this->_wp_list_args['singular'],
+			$transaction->ID()
+		);
+	}
+
+
+	/**
+	 *    column_TXN_timestamp
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function column_TXN_timestamp(EE_Transaction $transaction)
+	{
+		$view_lnk_url = EE_Admin_Page::add_query_args_and_nonce(array(
+			'action' => 'view_transaction',
+			'TXN_ID' => $transaction->ID(),
+		), TXN_ADMIN_URL);
+		$txn_date     = '<a href="' . $view_lnk_url . '"'
+						. ' title="'
+						. esc_attr__('View Transaction Details for TXN #', 'event_espresso') . $transaction->ID() . '">'
+						. $this->_get_txn_timestamp($transaction)
+						. '</a>';
+		//status
+		$txn_date .= '<br><span class="ee-status-text-small">'
+					 . EEH_Template::pretty_status(
+						 $transaction->status_ID(),
+						 false,
+						 'sentence'
+					 )
+					 . '</span>';
+		return $txn_date;
+	}
+
+
+	/**
+	 *    column_TXN_total
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function column_TXN_total(EE_Transaction $transaction)
+	{
+		if ($transaction->get('TXN_total') > 0) {
+			return '<span class="txn-pad-rght">'
+				   . apply_filters(
+					   'FHEE__EE_Admin_Transactions_List_Table__column_TXN_total__TXN_total',
+					   $transaction->get_pretty('TXN_total'),
+					   $transaction
+				   )
+				   . '</span>';
+		} else {
+			return '<span class="txn-overview-free-event-spn">' . esc_html__('free', 'event_espresso') . '</span>';
+		}
+	}
+
+
+	/**
+	 *    column_TXN_paid
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return mixed|string
+	 * @throws \EE_Error
+	 */
+	public function column_TXN_paid(EE_Transaction $transaction)
+	{
+		$transaction_total = $transaction->get('TXN_total');
+		$transaction_paid  = $transaction->get('TXN_paid');
+
+		if (\EEH_Money::compare_floats($transaction_total, 0, '>')) {
+			// monies owing
+			$span_class = 'txn-overview-part-payment-spn';
+			if (\EEH_Money::compare_floats($transaction_paid, $transaction_total, '>=')) {
+				// paid in full
+				$span_class = 'txn-overview-full-payment-spn';
+			} elseif (\EEH_Money::compare_floats($transaction_paid, 0, '==')) {
+				// no payments made
+				$span_class = 'txn-overview-no-payment-spn';
+			}
+		} else {
+			$span_class       = 'txn-overview-free-event-spn';
+			$transaction_paid = 0;
+		}
+
+		$payment_method      = $transaction->payment_method();
+		$payment_method_name = $payment_method instanceof EE_Payment_Method
+			? $payment_method->admin_name()
+			: esc_html__('Unknown', 'event_espresso');
+		$transaction_paid_content = $transaction_paid !== 0 ? $transaction->get_pretty('TXN_paid') : $transaction_paid;
+
+		$content = '<span class="' . $span_class . ' txn-pad-rght">'
+				   . $transaction_paid_content
+				   . '</span>';
+		if ($transaction_paid > 0) {
+			$content .= '<br><span class="ee-status-text-small">'
+						. sprintf(
+							esc_html__('...via %s', 'event_espresso'),
+							$payment_method_name
+						)
+						. '</span>';
+		}
+		return $content;
+	}
+
+
+	/**
+	 *    column_ATT_fname
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function column_ATT_fname(EE_Transaction $transaction)
+	{
+		$primary_reg = $transaction->primary_registration();
+		$attendee    = $primary_reg->get_first_related('Attendee');
+		if ($attendee instanceof EE_Attendee) {
+			$edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(array(
+				'action'  => 'view_registration',
+				'_REG_ID' => $primary_reg->ID(),
+			), REG_ADMIN_URL);
+			$content      = EE_Registry::instance()->CAP->current_user_can(
+				'ee_read_registration',
+				'espresso_registrations_view_registration',
+				$primary_reg->ID()
+			)
+				? '<a href="' . $edit_lnk_url . '"'
+					. ' title="' . esc_attr__('View Registration Details', 'event_espresso') . '">'
+					. $attendee->full_name()
+					. '</a>'
+				: $attendee->full_name();
+			$content      .= '<br>' . $attendee->email();
+			return $content;
+		}
+		return $transaction->failed() || $transaction->is_abandoned()
+			? esc_html__('no contact record.', 'event_espresso')
+			: esc_html__(
+				'No contact record, because the transaction was abandoned or the registration process failed.',
+				'event_espresso'
+			);
+	}
+
+
+	/**
+	 *    column_ATT_email
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function column_ATT_email(EE_Transaction $transaction)
+	{
+		$attendee = $transaction->primary_registration()->get_first_related('Attendee');
+		if (! empty($attendee)) {
+			return '<a href="mailto:' . $attendee->get('ATT_email') . '">'
+				   . $attendee->get('ATT_email')
+				   . '</a>';
+		} else {
+			return $transaction->failed() || $transaction->is_abandoned()
+				? esc_html__('no contact record.', 'event_espresso')
+				: esc_html__(
+					'No contact record, because the transaction was abandoned or the registration process failed.',
+					'event_espresso'
+				);
+		}
+	}
+
+
+	/**
+	 *    column_event_name
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function column_event_name(EE_Transaction $transaction)
+	{
+		$actions = array();
+		$event   = $transaction->primary_registration()->get_first_related('Event');
+		if (! empty($event)) {
+			$edit_event_url = EE_Admin_Page::add_query_args_and_nonce(
+				array('action' => 'edit', 'post' => $event->ID()),
+				EVENTS_ADMIN_URL
+			);
+			$event_name     = $event->get('EVT_name');
+
+			//filter this view by transactions for this event
+			$txn_by_event_lnk = EE_Admin_Page::add_query_args_and_nonce(array(
+				'action' => 'default',
+				'EVT_ID' => $event->ID(),
+			));
+			if (empty($this->_req_data['EVT_ID'])
+				&& EE_Registry::instance()->CAP->current_user_can(
+					'ee_edit_event',
+					'espresso_events_edit',
+					$event->ID()
+				)
+			) {
+				$actions['filter_by_event'] = '<a href="' . $txn_by_event_lnk . '"'
+						. ' title="' . esc_attr__('Filter transactions by this event', 'event_espresso') . '">'
+						. esc_html__('View Transactions for this event', 'event_espresso')
+						. '</a>';
+			}
+
+			return sprintf(
+				'%1$s %2$s',
+				EE_Registry::instance()->CAP->current_user_can(
+					'ee_edit_event',
+					'espresso_events_edit',
+					$event->ID()
+				)
+					? '<a href="' . $edit_event_url . '"'
+						. ' title="'
+						. sprintf(
+							esc_attr__('Edit Event: %s', 'event_espresso'),
+							$event->get('EVT_name')
+						)
+						. '">'
+						. wp_trim_words(
+							$event_name,
+							30,
+							'...'
+						)
+						. '</a>'
+						: wp_trim_words($event_name, 30, '...'),
+				$this->row_actions($actions)
+			);
+		} else {
+			return esc_html__(
+				'The event associated with this transaction via the primary registration cannot be retrieved.',
+				'event_espresso'
+			);
+		}
+	}
+
+
+	/**
+	 *    column_actions
+	 *
+	 * @param \EE_Transaction $transaction
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function column_actions(EE_Transaction $transaction)
+	{
+		return $this->_action_string(
+			$this->get_transaction_details_link($transaction)
+			. $this->get_invoice_link($transaction)
+			. $this->get_receipt_link($transaction)
+			. $this->get_primary_registration_details_link($transaction)
+			. $this->get_send_payment_reminder_trigger_link($transaction)
+			. $this->get_payment_overview_link($transaction)
+			. $this->get_related_messages_link($transaction),
+			$transaction,
+			'ul',
+			'txn-overview-actions-ul'
+		);
+	}
+
+
+	/**
+	 * Get the transaction details link.
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 */
+	protected function get_transaction_details_link(EE_Transaction $transaction)
+	{
+		$url          = EE_Admin_Page::add_query_args_and_nonce(array(
+			'action' => 'view_transaction',
+			'TXN_ID' => $transaction->ID(),
+		), TXN_ADMIN_URL);
+		return '
 			<li>
 				<a href="' . $url . '"'
-                    . ' title="' . esc_attr__('View Transaction Details', 'event_espresso') . '" class="tiny-text">
+					. ' title="' . esc_attr__('View Transaction Details', 'event_espresso') . '" class="tiny-text">
 					<span class="dashicons dashicons-cart"></span>
 				</a>
 			</li>';
-    }
-
-
-    /**
-     * Get the invoice link for the given registration.
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     */
-    protected function get_invoice_link(EE_Transaction $transaction)
-    {
-        $registration = $transaction->primary_registration();
-        if ($registration instanceof EE_Registration) {
-            $url = $registration->invoice_url();
-            //only show invoice link if message type is active.
-            if ($registration->attendee() instanceof EE_Attendee
-                && EEH_MSG_Template::is_mt_active('invoice')
-            ) {
-                return '
+	}
+
+
+	/**
+	 * Get the invoice link for the given registration.
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 */
+	protected function get_invoice_link(EE_Transaction $transaction)
+	{
+		$registration = $transaction->primary_registration();
+		if ($registration instanceof EE_Registration) {
+			$url = $registration->invoice_url();
+			//only show invoice link if message type is active.
+			if ($registration->attendee() instanceof EE_Attendee
+				&& EEH_MSG_Template::is_mt_active('invoice')
+			) {
+				return '
                 <li>
                     <a title="' . esc_attr__('View Transaction Invoice', 'event_espresso') . '"'
-                       . ' target="_blank" href="' . $url . '" class="tiny-text">
+					   . ' target="_blank" href="' . $url . '" class="tiny-text">
                         <span class="dashicons dashicons-media-spreadsheet ee-icon-size-18"></span>
                     </a>
                 </li>';
-            }
-        }
-        return '';
-    }
-
-
-    /**
-     * Get the receipt link for the transaction.
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     */
-    protected function get_receipt_link(EE_Transaction $transaction)
-    {
-        $registration = $transaction->primary_registration();
-        if ($registration instanceof EE_Registration) {
-            $url = $registration->receipt_url();
-            //only show receipt link if message type is active.
-            if ($registration->attendee() instanceof EE_Attendee
-                && EEH_MSG_Template::is_mt_active('receipt')) {
-                return '
+			}
+		}
+		return '';
+	}
+
+
+	/**
+	 * Get the receipt link for the transaction.
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 */
+	protected function get_receipt_link(EE_Transaction $transaction)
+	{
+		$registration = $transaction->primary_registration();
+		if ($registration instanceof EE_Registration) {
+			$url = $registration->receipt_url();
+			//only show receipt link if message type is active.
+			if ($registration->attendee() instanceof EE_Attendee
+				&& EEH_MSG_Template::is_mt_active('receipt')) {
+				return '
 			<li>
 				<a title="' . esc_attr__('View Transaction Receipt', 'event_espresso') . '"'
-                                  . ' target="_blank" href="' . $url . '" class="tiny-text">
+								  . ' target="_blank" href="' . $url . '" class="tiny-text">
 					<span class="dashicons dashicons-media-default ee-icon-size-18"></span>
 				</a>
 			</li>';
-            }
-        }
-        return '';
-    }
-
-
-    /**
-     * Get the link to view the details for the primary registration.
-     *
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function get_primary_registration_details_link(EE_Transaction $transaction)
-    {
-        $registration = $transaction->primary_registration();
-        if ($registration instanceof EE_Registration) {
-            $url      = EE_Admin_Page::add_query_args_and_nonce(array(
-                'action'  => 'view_registration',
-                '_REG_ID' => $registration->ID(),
-            ), REG_ADMIN_URL);
-            return EE_Registry::instance()->CAP->current_user_can(
-                'ee_read_registration',
-                'espresso_registrations_view_registration',
-                $registration->ID()
-            )
-                ? '
+			}
+		}
+		return '';
+	}
+
+
+	/**
+	 * Get the link to view the details for the primary registration.
+	 *
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function get_primary_registration_details_link(EE_Transaction $transaction)
+	{
+		$registration = $transaction->primary_registration();
+		if ($registration instanceof EE_Registration) {
+			$url      = EE_Admin_Page::add_query_args_and_nonce(array(
+				'action'  => 'view_registration',
+				'_REG_ID' => $registration->ID(),
+			), REG_ADMIN_URL);
+			return EE_Registry::instance()->CAP->current_user_can(
+				'ee_read_registration',
+				'espresso_registrations_view_registration',
+				$registration->ID()
+			)
+				? '
 				<li>
 					<a href="' . $url . '"'
-                  . ' title="' . esc_attr__('View Registration Details', 'event_espresso') . '" class="tiny-text">
+				  . ' title="' . esc_attr__('View Registration Details', 'event_espresso') . '" class="tiny-text">
 						<span class="dashicons dashicons-clipboard"></span>
 					</a>
 				</li>'
-                : '';
-        }
-        return '';
-    }
-
-
-    /**
-     * Get send payment reminder trigger link
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function get_send_payment_reminder_trigger_link(EE_Transaction $transaction)
-    {
-        $registration = $transaction->primary_registration();
-        if ($registration instanceof EE_Registration
-            && $registration->attendee() instanceof EE_Attendee
-            && EEH_MSG_Template::is_mt_active('payment_reminder')
-            && ! in_array(
-                $transaction->status_ID(),
-                array(EEM_Transaction::complete_status_code, EEM_Transaction::overpaid_status_code),
-                true
-            )
-            && EE_Registry::instance()->CAP->current_user_can(
-                'ee_send_message',
-                'espresso_transactions_send_payment_reminder'
-            )
-        ) {
-            $url = EE_Admin_Page::add_query_args_and_nonce(array(
-                'action' => 'send_payment_reminder',
-                'TXN_ID' => $transaction->ID(),
-            ), TXN_ADMIN_URL);
-            return  '
+				: '';
+		}
+		return '';
+	}
+
+
+	/**
+	 * Get send payment reminder trigger link
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function get_send_payment_reminder_trigger_link(EE_Transaction $transaction)
+	{
+		$registration = $transaction->primary_registration();
+		if ($registration instanceof EE_Registration
+			&& $registration->attendee() instanceof EE_Attendee
+			&& EEH_MSG_Template::is_mt_active('payment_reminder')
+			&& ! in_array(
+				$transaction->status_ID(),
+				array(EEM_Transaction::complete_status_code, EEM_Transaction::overpaid_status_code),
+				true
+			)
+			&& EE_Registry::instance()->CAP->current_user_can(
+				'ee_send_message',
+				'espresso_transactions_send_payment_reminder'
+			)
+		) {
+			$url = EE_Admin_Page::add_query_args_and_nonce(array(
+				'action' => 'send_payment_reminder',
+				'TXN_ID' => $transaction->ID(),
+			), TXN_ADMIN_URL);
+			return  '
             <li>
                 <a href="' . $url . '"'
-                  . ' title="' . esc_attr__('Send Payment Reminder', 'event_espresso') . '" class="tiny-text">
+				  . ' title="' . esc_attr__('Send Payment Reminder', 'event_espresso') . '" class="tiny-text">
                     <span class="dashicons dashicons-email-alt"></span>
                 </a>
             </li>';
-        }
-        return '';
-    }
-
-
-    /**
-     * Get link to filtered view in the message activity list table of messages for this transaction.
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function get_related_messages_link(EE_Transaction $transaction)
-    {
-        $url = EEH_MSG_Template::get_message_action_link(
-            'see_notifications_for',
-            null,
-            array('TXN_ID' => $transaction->ID())
-        );
-        return EE_Registry::instance()->CAP->current_user_can(
-            'ee_read_global_messages',
-            'view_filtered_messages'
-        )
-            ? '<li>' . $url . '</li>'
-            : '';
-    }
-
-
-    /**
-     * Return the link to make a payment on the frontend
-     * @param EE_Transaction $transaction
-     * @return string
-     * @throws EE_Error
-     */
-    protected function get_payment_overview_link(EE_Transaction $transaction)
-    {
-        $registration = $transaction->primary_registration();
-        if ($registration instanceof EE_Registration
-            && $transaction->status_ID() !== EEM_Transaction::complete_status_code
-            && $registration->owes_monies_and_can_pay()
-        ) {
-            return '
+		}
+		return '';
+	}
+
+
+	/**
+	 * Get link to filtered view in the message activity list table of messages for this transaction.
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function get_related_messages_link(EE_Transaction $transaction)
+	{
+		$url = EEH_MSG_Template::get_message_action_link(
+			'see_notifications_for',
+			null,
+			array('TXN_ID' => $transaction->ID())
+		);
+		return EE_Registry::instance()->CAP->current_user_can(
+			'ee_read_global_messages',
+			'view_filtered_messages'
+		)
+			? '<li>' . $url . '</li>'
+			: '';
+	}
+
+
+	/**
+	 * Return the link to make a payment on the frontend
+	 * @param EE_Transaction $transaction
+	 * @return string
+	 * @throws EE_Error
+	 */
+	protected function get_payment_overview_link(EE_Transaction $transaction)
+	{
+		$registration = $transaction->primary_registration();
+		if ($registration instanceof EE_Registration
+			&& $transaction->status_ID() !== EEM_Transaction::complete_status_code
+			&& $registration->owes_monies_and_can_pay()
+		) {
+			return '
             <li>
                 <a title="' . esc_attr__('Make Payment from the Frontend.', 'event_espresso') . '"'
-                    . ' target="_blank" href="' . $registration->payment_overview_url(true) . '"'
-                    . ' class="tiny-text">
+					. ' target="_blank" href="' . $registration->payment_overview_url(true) . '"'
+					. ' class="tiny-text">
                     <span class="dashicons dashicons-money ee-icon-size-18"></span>
                 </a>
             </li>
             ';
 
-        }
-        return '';
-    }
+		}
+		return '';
+	}
 }

core/domain/values/session/SessionLifespan.php

Indentation +95 added lines, -95 removed lines

@@ -24,99 +24,99 @@
 class SessionLifespan
 {
 
-    /**
-     * how long an EE session lasts in seconds
-     * default session lifespan of 1 hour (for not so instant IPNs)
-     *
-     * @var int $lifespan
-     */
-    private $lifespan;
-
-
-    /**
-     * SessionLifespan constructor.
-     *
-     * @param int $lifespan
-     * @throws DomainException
-     */
-    public function __construct($lifespan = 0)
-    {
-        $lifespan = absint($lifespan);
-        $lifespan = $lifespan > 0 ? $lifespan : (int) HOUR_IN_SECONDS;
-        $this->setLifespan($lifespan);
-    }
-
-
-    /**
-     * @param int $lifespan
-     * @throws DomainException
-     */
-    protected function setLifespan($lifespan)
-    {
-        if($lifespan < 60) {
-            throw new DomainException(
-                esc_html__(
-                    'The session lifespan needs to be at least 60 seconds, and even that is extremely short',
-                    'event_espresso'
-                )
-            );
-
-        }
-        $this->lifespan = apply_filters(
-            'FHEE__EventEspresso_core_domain_values_session_SessionLifespan__setLifespan___lifespan',
-            // apply legacy filter for now but add doing it wrong notice in future
-            apply_filters(
-                'FHEE__EE_Session__construct___lifespan',
-                $lifespan
-            )
-        ) + 1;
-    }
-
-
-    /**
-     * @return int
-     */
-    public function inSeconds()
-    {
-        return $this->lifespan;
-    }
-
-
-    /**
-     * @param string $separator
-     * @return string
-     */
-    public function inHoursMinutesSeconds($separator = ':')
-    {
-        return sprintf(
-            '%02d%s%02d%s%02d',
-            floor($this->lifespan / 3600),
-            $separator,
-            ($this->lifespan / 60) % 60,
-            $separator,
-            $this->lifespan % 60
-        );
-    }
-
-
-    /**
-     * Returns a timestamp for when the session would expire based on this lifespan
-     *
-     * @param bool $utc If true, displays expiration in UTC
-     *                  If false, displays expiration in local time
-     * @return float
-     */
-    public function expiration($utc = true)
-    {
-        return current_time('timestamp', $utc) - $this->lifespan;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function __toString()
-    {
-        return (string) $this->inSeconds();
-    }
+	/**
+	 * how long an EE session lasts in seconds
+	 * default session lifespan of 1 hour (for not so instant IPNs)
+	 *
+	 * @var int $lifespan
+	 */
+	private $lifespan;
+
+
+	/**
+	 * SessionLifespan constructor.
+	 *
+	 * @param int $lifespan
+	 * @throws DomainException
+	 */
+	public function __construct($lifespan = 0)
+	{
+		$lifespan = absint($lifespan);
+		$lifespan = $lifespan > 0 ? $lifespan : (int) HOUR_IN_SECONDS;
+		$this->setLifespan($lifespan);
+	}
+
+
+	/**
+	 * @param int $lifespan
+	 * @throws DomainException
+	 */
+	protected function setLifespan($lifespan)
+	{
+		if($lifespan < 60) {
+			throw new DomainException(
+				esc_html__(
+					'The session lifespan needs to be at least 60 seconds, and even that is extremely short',
+					'event_espresso'
+				)
+			);
+
+		}
+		$this->lifespan = apply_filters(
+			'FHEE__EventEspresso_core_domain_values_session_SessionLifespan__setLifespan___lifespan',
+			// apply legacy filter for now but add doing it wrong notice in future
+			apply_filters(
+				'FHEE__EE_Session__construct___lifespan',
+				$lifespan
+			)
+		) + 1;
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function inSeconds()
+	{
+		return $this->lifespan;
+	}
+
+
+	/**
+	 * @param string $separator
+	 * @return string
+	 */
+	public function inHoursMinutesSeconds($separator = ':')
+	{
+		return sprintf(
+			'%02d%s%02d%s%02d',
+			floor($this->lifespan / 3600),
+			$separator,
+			($this->lifespan / 60) % 60,
+			$separator,
+			$this->lifespan % 60
+		);
+	}
+
+
+	/**
+	 * Returns a timestamp for when the session would expire based on this lifespan
+	 *
+	 * @param bool $utc If true, displays expiration in UTC
+	 *                  If false, displays expiration in local time
+	 * @return float
+	 */
+	public function expiration($utc = true)
+	{
+		return current_time('timestamp', $utc) - $this->lifespan;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function __toString()
+	{
+		return (string) $this->inSeconds();
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -53,7 +53,7 @@
      */
     protected function setLifespan($lifespan)
     {
-        if($lifespan < 60) {
+        if ($lifespan < 60) {
             throw new DomainException(
                 esc_html__(
                     'The session lifespan needs to be at least 60 seconds, and even that is extremely short',

core/EE_System.core.php

Indentation +1254 added lines, -1254 removed lines

@@ -24,1260 +24,1260 @@
 {
 
 
-    /**
-     * indicates this is a 'normal' request. Ie, not activation, nor upgrade, nor activation.
-     * So examples of this would be a normal GET request on the frontend or backend, or a POST, etc
-     */
-    const req_type_normal = 0;
-
-    /**
-     * Indicates this is a brand new installation of EE so we should install
-     * tables and default data etc
-     */
-    const req_type_new_activation = 1;
-
-    /**
-     * we've detected that EE has been reactivated (or EE was activated during maintenance mode,
-     * and we just exited maintenance mode). We MUST check the database is setup properly
-     * and that default data is setup too
-     */
-    const req_type_reactivation = 2;
-
-    /**
-     * indicates that EE has been upgraded since its previous request.
-     * We may have data migration scripts to call and will want to trigger maintenance mode
-     */
-    const req_type_upgrade = 3;
-
-    /**
-     * TODO  will detect that EE has been DOWNGRADED. We probably don't want to run in this case...
-     */
-    const req_type_downgrade = 4;
-
-    /**
-     * @deprecated since version 4.6.0.dev.006
-     * Now whenever a new_activation is detected the request type is still just
-     * new_activation (same for reactivation, upgrade, downgrade etc), but if we'r ein maintenance mode
-     * EE_System::initialize_db_if_no_migrations_required and EE_Addon::initialize_db_if_no_migrations_required
-     * will instead enqueue that EE plugin's db initialization for when we're taken out of maintenance mode.
-     * (Specifically, when the migration manager indicates migrations are finished
-     * EE_Data_Migration_Manager::initialize_db_for_enqueued_ee_plugins() will be called)
-     */
-    const req_type_activation_but_not_installed = 5;
-
-    /**
-     * option prefix for recording the activation history (like core's "espresso_db_update") of addons
-     */
-    const addon_activation_history_option_prefix = 'ee_addon_activation_history_';
-
-
-    /**
-     * @var EE_System $_instance
-     */
-    private static $_instance;
-
-    /**
-     * @var EE_Registry $registry
-     */
-    private $registry;
-
-    /**
-     * @var LoaderInterface $loader
-     */
-    private $loader;
-
-    /**
-     * @var EE_Capabilities $capabilities
-     */
-    private $capabilities;
-
-    /**
-     * @var RequestInterface $request
-     */
-    private $request;
-
-    /**
-     * @var EE_Maintenance_Mode $maintenance_mode
-     */
-    private $maintenance_mode;
-
-    /**
-     * Stores which type of request this is, options being one of the constants on EE_System starting with req_type_*.
-     * It can be a brand-new activation, a reactivation, an upgrade, a downgrade, or a normal request.
-     *
-     * @var int $_req_type
-     */
-    private $_req_type;
-
-    /**
-     * Whether or not there was a non-micro version change in EE core version during this request
-     *
-     * @var boolean $_major_version_change
-     */
-    private $_major_version_change = false;
-
-    /**
-     * A Context DTO dedicated solely to identifying the current request type.
-     *
-     * @var RequestTypeContextCheckerInterface $request_type
-     */
-    private $request_type;
-
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param EE_Registry|null         $registry
-     * @param LoaderInterface|null     $loader
-     * @param RequestInterface|null          $request
-     * @param EE_Maintenance_Mode|null $maintenance_mode
-     * @return EE_System
-     */
-    public static function instance(
-        EE_Registry $registry = null,
-        LoaderInterface $loader = null,
-        RequestInterface $request = null,
-        EE_Maintenance_Mode $maintenance_mode = null
-    ) {
-        // check if class object is instantiated
-        if (! self::$_instance instanceof EE_System) {
-            self::$_instance = new self($registry, $loader, $request, $maintenance_mode);
-        }
-        return self::$_instance;
-    }
-
-
-
-    /**
-     * resets the instance and returns it
-     *
-     * @return EE_System
-     */
-    public static function reset()
-    {
-        self::$_instance->_req_type = null;
-        //make sure none of the old hooks are left hanging around
-        remove_all_actions('AHEE__EE_System__perform_activations_upgrades_and_migrations');
-        //we need to reset the migration manager in order for it to detect DMSs properly
-        EE_Data_Migration_Manager::reset();
-        self::instance()->detect_activations_or_upgrades();
-        self::instance()->perform_activations_upgrades_and_migrations();
-        return self::instance();
-    }
-
-
-
-    /**
-     * sets hooks for running rest of system
-     * provides "AHEE__EE_System__construct__complete" hook for EE Addons to use as their starting point
-     * starting EE Addons from any other point may lead to problems
-     *
-     * @param EE_Registry         $registry
-     * @param LoaderInterface     $loader
-     * @param RequestInterface          $request
-     * @param EE_Maintenance_Mode $maintenance_mode
-     */
-    private function __construct(
-        EE_Registry $registry,
-        LoaderInterface $loader,
-        RequestInterface $request,
-        EE_Maintenance_Mode $maintenance_mode
-    ) {
-        $this->registry         = $registry;
-        $this->loader           = $loader;
-        $this->request          = $request;
-        $this->maintenance_mode = $maintenance_mode;
-        do_action('AHEE__EE_System__construct__begin', $this);
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'loadCapabilities'),
-            5
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'loadCommandBus'),
-            7
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'loadPluginApi'),
-            9
-        );
-        // allow addons to load first so that they can register autoloaders, set hooks for running DMS's, etc
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            array($this, 'load_espresso_addons')
-        );
-        // when an ee addon is activated, we want to call the core hook(s) again
-        // because the newly-activated addon didn't get a chance to run at all
-        add_action('activate_plugin', array($this, 'load_espresso_addons'), 1);
-        // detect whether install or upgrade
-        add_action(
-            'AHEE__EE_Bootstrap__detect_activations_or_upgrades',
-            array($this, 'detect_activations_or_upgrades'),
-            3
-        );
-        // load EE_Config, EE_Textdomain, etc
-        add_action(
-            'AHEE__EE_Bootstrap__load_core_configuration',
-            array($this, 'load_core_configuration'),
-            5
-        );
-        // load EE_Config, EE_Textdomain, etc
-        add_action(
-            'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets',
-            array($this, 'register_shortcodes_modules_and_widgets'),
-            7
-        );
-        // you wanna get going? I wanna get going... let's get going!
-        add_action(
-            'AHEE__EE_Bootstrap__brew_espresso',
-            array($this, 'brew_espresso'),
-            9
-        );
-        //other housekeeping
-        //exclude EE critical pages from wp_list_pages
-        add_filter(
-            'wp_list_pages_excludes',
-            array($this, 'remove_pages_from_wp_list_pages'),
-            10
-        );
-        // ALL EE Addons should use the following hook point to attach their initial setup too
-        // it's extremely important for EE Addons to register any class autoloaders so that they can be available when the EE_Config loads
-        do_action('AHEE__EE_System__construct__complete', $this);
-    }
-
-
-    /**
-     * load and setup EE_Capabilities
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function loadCapabilities()
-    {
-        $this->capabilities = $this->loader->getShared('EE_Capabilities');
-        add_action(
-            'AHEE__EE_Capabilities__init_caps__before_initialization',
-            function ()
-            {
-                LoaderFactory::getLoader()->getShared('EE_Payment_Method_Manager');
-            }
-        );
-    }
-
-
-
-    /**
-     * create and cache the CommandBus, and also add middleware
-     * The CapChecker middleware requires the use of EE_Capabilities
-     * which is why we need to load the CommandBus after Caps are set up
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function loadCommandBus()
-    {
-        $this->loader->getShared(
-            'CommandBusInterface',
-            array(
-                null,
-                apply_filters(
-                    'FHEE__EE_Load_Espresso_Core__handle_request__CommandBus_middleware',
-                    array(
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\CapChecker'),
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\AddActionHook'),
-                    )
-                ),
-            )
-        );
-    }
-
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     */
-    public function loadPluginApi()
-    {
-        // set autoloaders for all of the classes implementing EEI_Plugin_API
-        // which provide helpers for EE plugin authors to more easily register certain components with EE.
-        EEH_Autoloader::instance()->register_autoloaders_for_each_file_in_folder(EE_LIBRARIES . 'plugin_api');
-        $this->loader->getShared('EE_Request_Handler');
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @param string $version_constant
-     * @param string $min_version_required
-     * @param string $load_callback
-     * @param string $plugin_file_constant
-     * @return void
-     */
-    private function deactivateIncompatibleAddon(
-        $addon_name,
-        $version_constant,
-        $min_version_required,
-        $load_callback,
-        $plugin_file_constant
-    ) {
-        if (! defined($version_constant)) {
-            return;
-        }
-        $addon_version = constant($version_constant);
-        if ($addon_version && version_compare($addon_version, $min_version_required, '<')) {
-            remove_action('AHEE__EE_System__load_espresso_addons', $load_callback);
-            if (! function_exists('deactivate_plugins')) {
-                require_once ABSPATH . 'wp-admin/includes/plugin.php';
-            }
-            deactivate_plugins(plugin_basename(constant($plugin_file_constant)));
-            unset($_GET['activate'], $_REQUEST['activate'], $_GET['activate-multi'], $_REQUEST['activate-multi']);
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'We\'re sorry, but the Event Espresso %1$s addon was deactivated because version %2$s or higher is required with this version of Event Espresso core.',
-                        'event_espresso'
-                    ),
-                    $addon_name,
-                    $min_version_required
-                ),
-                __FILE__, __FUNCTION__ . "({$addon_name})", __LINE__
-            );
-            EE_Error::get_notices(false, true);
-        }
-    }
-
-
-    /**
-     * load_espresso_addons
-     * allow addons to load first so that they can set hooks for running DMS's, etc
-     * this is hooked into both:
-     *    'AHEE__EE_Bootstrap__load_core_configuration'
-     *        which runs during the WP 'plugins_loaded' action at priority 5
-     *    and the WP 'activate_plugin' hook point
-     *
-     * @access public
-     * @return void
-     */
-    public function load_espresso_addons()
-    {
-        $this->deactivateIncompatibleAddon(
-            'Wait Lists',
-            'EE_WAIT_LISTS_VERSION',
-            '1.0.0.beta.074',
-            'load_espresso_wait_lists',
-            'EE_WAIT_LISTS_PLUGIN_FILE'
-        );
-        $this->deactivateIncompatibleAddon(
-            'Automated Upcoming Event Notifications',
-            'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_VERSION',
-            '1.0.0.beta.091',
-            'load_espresso_automated_upcoming_event_notification',
-            'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_PLUGIN_FILE'
-        );
-        do_action('AHEE__EE_System__load_espresso_addons');
-        //if the WP API basic auth plugin isn't already loaded, load it now.
-        //We want it for mobile apps. Just include the entire plugin
-        //also, don't load the basic auth when a plugin is getting activated, because
-        //it could be the basic auth plugin, and it doesn't check if its methods are already defined
-        //and causes a fatal error
-        if (
-            $this->request->getRequestParam('activate') !== 'true'
-            && ! function_exists('json_basic_auth_handler')
-            && ! function_exists('json_basic_auth_error')
-            && ! in_array(
-                $this->request->getRequestParam('action'),
-                array('activate', 'activate-selected'),
-                true
-            )
-        ) {
-            include_once EE_THIRD_PARTY . 'wp-api-basic-auth' . DS . 'basic-auth.php';
-        }
-        do_action('AHEE__EE_System__load_espresso_addons__complete');
-    }
-
-
-
-    /**
-     * detect_activations_or_upgrades
-     * Checks for activation or upgrade of core first;
-     * then also checks if any registered addons have been activated or upgraded
-     * This is hooked into 'AHEE__EE_Bootstrap__detect_activations_or_upgrades'
-     * which runs during the WP 'plugins_loaded' action at priority 3
-     *
-     * @access public
-     * @return void
-     */
-    public function detect_activations_or_upgrades()
-    {
-        //first off: let's make sure to handle core
-        $this->detect_if_activation_or_upgrade();
-        foreach ($this->registry->addons as $addon) {
-            if ($addon instanceof EE_Addon) {
-                //detect teh request type for that addon
-                $addon->detect_activation_or_upgrade();
-            }
-        }
-    }
-
-
-
-    /**
-     * detect_if_activation_or_upgrade
-     * Takes care of detecting whether this is a brand new install or code upgrade,
-     * and either setting up the DB or setting up maintenance mode etc.
-     *
-     * @access public
-     * @return void
-     */
-    public function detect_if_activation_or_upgrade()
-    {
-        do_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin');
-        // check if db has been updated, or if its a brand-new installation
-        $espresso_db_update = $this->fix_espresso_db_upgrade_option();
-        $request_type       = $this->detect_req_type($espresso_db_update);
-        //EEH_Debug_Tools::printr( $request_type, '$request_type', __FILE__, __LINE__ );
-        switch ($request_type) {
-            case EE_System::req_type_new_activation:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__new_activation');
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_reactivation:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__reactivation');
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_upgrade:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__upgrade');
-                //migrations may be required now that we've upgraded
-                $this->maintenance_mode->set_maintenance_mode_if_db_old();
-                $this->_handle_core_version_change($espresso_db_update);
-                //				echo "done upgrade";die;
-                break;
-            case EE_System::req_type_downgrade:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__downgrade');
-                //its possible migrations are no longer required
-                $this->maintenance_mode->set_maintenance_mode_if_db_old();
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_normal:
-            default:
-                break;
-        }
-        do_action('AHEE__EE_System__detect_if_activation_or_upgrade__complete');
-    }
-
-
-
-    /**
-     * Updates the list of installed versions and sets hooks for
-     * initializing the database later during the request
-     *
-     * @param array $espresso_db_update
-     */
-    private function _handle_core_version_change($espresso_db_update)
-    {
-        $this->update_list_of_installed_versions($espresso_db_update);
-        //get ready to verify the DB is ok (provided we aren't in maintenance mode, of course)
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            array($this, 'initialize_db_if_no_migrations_required')
-        );
-    }
-
-
-
-    /**
-     * standardizes the wp option 'espresso_db_upgrade' which actually stores
-     * information about what versions of EE have been installed and activated,
-     * NOT necessarily the state of the database
-     *
-     * @param mixed $espresso_db_update           the value of the WordPress option.
-     *                                            If not supplied, fetches it from the options table
-     * @return array the correct value of 'espresso_db_upgrade', after saving it, if it needed correction
-     */
-    private function fix_espresso_db_upgrade_option($espresso_db_update = null)
-    {
-        do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
-        if (! $espresso_db_update) {
-            $espresso_db_update = get_option('espresso_db_update');
-        }
-        // check that option is an array
-        if (! is_array($espresso_db_update)) {
-            // if option is FALSE, then it never existed
-            if ($espresso_db_update === false) {
-                // make $espresso_db_update an array and save option with autoload OFF
-                $espresso_db_update = array();
-                add_option('espresso_db_update', $espresso_db_update, '', 'no');
-            } else {
-                // option is NOT FALSE but also is NOT an array, so make it an array and save it
-                $espresso_db_update = array($espresso_db_update => array());
-                update_option('espresso_db_update', $espresso_db_update);
-            }
-        } else {
-            $corrected_db_update = array();
-            //if IS an array, but is it an array where KEYS are version numbers, and values are arrays?
-            foreach ($espresso_db_update as $should_be_version_string => $should_be_array) {
-                if (is_int($should_be_version_string) && ! is_array($should_be_array)) {
-                    //the key is an int, and the value IS NOT an array
-                    //so it must be numerically-indexed, where values are versions installed...
-                    //fix it!
-                    $version_string                         = $should_be_array;
-                    $corrected_db_update[ $version_string ] = array('unknown-date');
-                } else {
-                    //ok it checks out
-                    $corrected_db_update[ $should_be_version_string ] = $should_be_array;
-                }
-            }
-            $espresso_db_update = $corrected_db_update;
-            update_option('espresso_db_update', $espresso_db_update);
-        }
-        do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__complete', $espresso_db_update);
-        return $espresso_db_update;
-    }
-
-
-
-    /**
-     * Does the traditional work of setting up the plugin's database and adding default data.
-     * If migration script/process did not exist, this is what would happen on every activation/reactivation/upgrade.
-     * NOTE: if we're in maintenance mode (which would be the case if we detect there are data
-     * migration scripts that need to be run and a version change happens), enqueues core for database initialization,
-     * so that it will be done when migrations are finished
-     *
-     * @param boolean $initialize_addons_too if true, we double-check addons' database tables etc too;
-     * @param boolean $verify_schema         if true will re-check the database tables have the correct schema.
-     *                                       This is a resource-intensive job
-     *                                       so we prefer to only do it when necessary
-     * @return void
-     * @throws EE_Error
-     */
-    public function initialize_db_if_no_migrations_required($initialize_addons_too = false, $verify_schema = true)
-    {
-        $request_type = $this->detect_req_type();
-        //only initialize system if we're not in maintenance mode.
-        if ($this->maintenance_mode->level() !== EE_Maintenance_Mode::level_2_complete_maintenance) {
-            update_option('ee_flush_rewrite_rules', true);
-            if ($verify_schema) {
-                EEH_Activation::initialize_db_and_folders();
-            }
-            EEH_Activation::initialize_db_content();
-            EEH_Activation::system_initialization();
-            if ($initialize_addons_too) {
-                $this->initialize_addons();
-            }
-        } else {
-            EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for('Core');
-        }
-        if ($request_type === EE_System::req_type_new_activation
-            || $request_type === EE_System::req_type_reactivation
-            || (
-                $request_type === EE_System::req_type_upgrade
-                && $this->is_major_version_change()
-            )
-        ) {
-            add_action('AHEE__EE_System__initialize_last', array($this, 'redirect_to_about_ee'), 9);
-        }
-    }
-
-
-
-    /**
-     * Initializes the db for all registered addons
-     *
-     * @throws EE_Error
-     */
-    public function initialize_addons()
-    {
-        //foreach registered addon, make sure its db is up-to-date too
-        foreach ($this->registry->addons as $addon) {
-            if ($addon instanceof EE_Addon) {
-                $addon->initialize_db_if_no_migrations_required();
-            }
-        }
-    }
-
-
-
-    /**
-     * Adds the current code version to the saved wp option which stores a list of all ee versions ever installed.
-     *
-     * @param    array  $version_history
-     * @param    string $current_version_to_add version to be added to the version history
-     * @return    boolean success as to whether or not this option was changed
-     */
-    public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null)
-    {
-        if (! $version_history) {
-            $version_history = $this->fix_espresso_db_upgrade_option($version_history);
-        }
-        if ($current_version_to_add === null) {
-            $current_version_to_add = espresso_version();
-        }
-        $version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
-        // re-save
-        return update_option('espresso_db_update', $version_history);
-    }
-
-
-
-    /**
-     * Detects if the current version indicated in the has existed in the list of
-     * previously-installed versions of EE (espresso_db_update). Does NOT modify it (ie, no side-effect)
-     *
-     * @param array $espresso_db_update array from the wp option stored under the name 'espresso_db_update'.
-     *                                  If not supplied, fetches it from the options table.
-     *                                  Also, caches its result so later parts of the code can also know whether
-     *                                  there's been an update or not. This way we can add the current version to
-     *                                  espresso_db_update, but still know if this is a new install or not
-     * @return int one of the constants on EE_System::req_type_
-     */
-    public function detect_req_type($espresso_db_update = null)
-    {
-        if ($this->_req_type === null) {
-            $espresso_db_update          = ! empty($espresso_db_update)
-                ? $espresso_db_update
-                : $this->fix_espresso_db_upgrade_option();
-            $this->_req_type             = EE_System::detect_req_type_given_activation_history(
-                $espresso_db_update,
-                'ee_espresso_activation', espresso_version()
-            );
-            $this->_major_version_change = $this->_detect_major_version_change($espresso_db_update);
-            $this->request->setIsActivation($this->_req_type !== EE_System::req_type_normal);
-        }
-        return $this->_req_type;
-    }
-
-
-
-    /**
-     * Returns whether or not there was a non-micro version change (ie, change in either
-     * the first or second number in the version. Eg 4.9.0.rc.001 to 4.10.0.rc.000,
-     * but not 4.9.0.rc.0001 to 4.9.1.rc.0001
-     *
-     * @param $activation_history
-     * @return bool
-     */
-    private function _detect_major_version_change($activation_history)
-    {
-        $previous_version       = EE_System::_get_most_recently_active_version_from_activation_history($activation_history);
-        $previous_version_parts = explode('.', $previous_version);
-        $current_version_parts  = explode('.', espresso_version());
-        return isset($previous_version_parts[0], $previous_version_parts[1], $current_version_parts[0], $current_version_parts[1])
-               && ($previous_version_parts[0] !== $current_version_parts[0]
-                   || $previous_version_parts[1] !== $current_version_parts[1]
-               );
-    }
-
-
-
-    /**
-     * Returns true if either the major or minor version of EE changed during this request.
-     * Eg 4.9.0.rc.001 to 4.10.0.rc.000, but not 4.9.0.rc.0001 to 4.9.1.rc.0001
-     *
-     * @return bool
-     */
-    public function is_major_version_change()
-    {
-        return $this->_major_version_change;
-    }
-
-
-
-    /**
-     * Determines the request type for any ee addon, given three piece of info: the current array of activation
-     * histories (for core that' 'espresso_db_update' wp option); the name of the WordPress option which is temporarily
-     * set upon activation of the plugin (for core it's 'ee_espresso_activation'); and the version that this plugin was
-     * just activated to (for core that will always be espresso_version())
-     *
-     * @param array  $activation_history_for_addon     the option's value which stores the activation history for this
-     *                                                 ee plugin. for core that's 'espresso_db_update'
-     * @param string $activation_indicator_option_name the name of the WordPress option that is temporarily set to
-     *                                                 indicate that this plugin was just activated
-     * @param string $version_to_upgrade_to            the version that was just upgraded to (for core that will be
-     *                                                 espresso_version())
-     * @return int one of the constants on EE_System::req_type_*
-     */
-    public static function detect_req_type_given_activation_history(
-        $activation_history_for_addon,
-        $activation_indicator_option_name,
-        $version_to_upgrade_to
-    ) {
-        $version_is_higher = self::_new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to);
-        if ($activation_history_for_addon) {
-            //it exists, so this isn't a completely new install
-            //check if this version already in that list of previously installed versions
-            if (! isset($activation_history_for_addon[ $version_to_upgrade_to ])) {
-                //it a version we haven't seen before
-                if ($version_is_higher === 1) {
-                    $req_type = EE_System::req_type_upgrade;
-                } else {
-                    $req_type = EE_System::req_type_downgrade;
-                }
-                delete_option($activation_indicator_option_name);
-            } else {
-                // its not an update. maybe a reactivation?
-                if (get_option($activation_indicator_option_name, false)) {
-                    if ($version_is_higher === -1) {
-                        $req_type = EE_System::req_type_downgrade;
-                    } elseif ($version_is_higher === 0) {
-                        //we've seen this version before, but it's an activation. must be a reactivation
-                        $req_type = EE_System::req_type_reactivation;
-                    } else {//$version_is_higher === 1
-                        $req_type = EE_System::req_type_upgrade;
-                    }
-                    delete_option($activation_indicator_option_name);
-                } else {
-                    //we've seen this version before and the activation indicate doesn't show it was just activated
-                    if ($version_is_higher === -1) {
-                        $req_type = EE_System::req_type_downgrade;
-                    } elseif ($version_is_higher === 0) {
-                        //we've seen this version before and it's not an activation. its normal request
-                        $req_type = EE_System::req_type_normal;
-                    } else {//$version_is_higher === 1
-                        $req_type = EE_System::req_type_upgrade;
-                    }
-                }
-            }
-        } else {
-            //brand new install
-            $req_type = EE_System::req_type_new_activation;
-            delete_option($activation_indicator_option_name);
-        }
-        return $req_type;
-    }
-
-
-
-    /**
-     * Detects if the $version_to_upgrade_to is higher than the most recent version in
-     * the $activation_history_for_addon
-     *
-     * @param array  $activation_history_for_addon (keys are versions, values are arrays of times activated,
-     *                                             sometimes containing 'unknown-date'
-     * @param string $version_to_upgrade_to        (current version)
-     * @return int results of version_compare( $version_to_upgrade_to, $most_recently_active_version ).
-     *                                             ie, -1 if $version_to_upgrade_to is LOWER (downgrade);
-     *                                             0 if $version_to_upgrade_to MATCHES (reactivation or normal request);
-     *                                             1 if $version_to_upgrade_to is HIGHER (upgrade) ;
-     */
-    private static function _new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to)
-    {
-        //find the most recently-activated version
-        $most_recently_active_version =
-            EE_System::_get_most_recently_active_version_from_activation_history($activation_history_for_addon);
-        return version_compare($version_to_upgrade_to, $most_recently_active_version);
-    }
-
-
-
-    /**
-     * Gets the most recently active version listed in the activation history,
-     * and if none are found (ie, it's a brand new install) returns '0.0.0.dev.000'.
-     *
-     * @param array $activation_history  (keys are versions, values are arrays of times activated,
-     *                                   sometimes containing 'unknown-date'
-     * @return string
-     */
-    private static function _get_most_recently_active_version_from_activation_history($activation_history)
-    {
-        $most_recently_active_version_activation = '1970-01-01 00:00:00';
-        $most_recently_active_version            = '0.0.0.dev.000';
-        if (is_array($activation_history)) {
-            foreach ($activation_history as $version => $times_activated) {
-                //check there is a record of when this version was activated. Otherwise,
-                //mark it as unknown
-                if (! $times_activated) {
-                    $times_activated = array('unknown-date');
-                }
-                if (is_string($times_activated)) {
-                    $times_activated = array($times_activated);
-                }
-                foreach ($times_activated as $an_activation) {
-                    if ($an_activation !== 'unknown-date'
-                        && $an_activation
-                           > $most_recently_active_version_activation) {
-                        $most_recently_active_version            = $version;
-                        $most_recently_active_version_activation = $an_activation === 'unknown-date'
-                            ? '1970-01-01 00:00:00'
-                            : $an_activation;
-                    }
-                }
-            }
-        }
-        return $most_recently_active_version;
-    }
-
-
-
-    /**
-     * This redirects to the about EE page after activation
-     *
-     * @return void
-     */
-    public function redirect_to_about_ee()
-    {
-        $notices = EE_Error::get_notices(false);
-        //if current user is an admin and it's not an ajax or rest request
-        if (
-            ! isset($notices['errors'])
-            && $this->request->isAdmin()
-            && apply_filters(
-                'FHEE__EE_System__redirect_to_about_ee__do_redirect',
-                $this->capabilities->current_user_can('manage_options', 'espresso_about_default')
-            )
-        ) {
-            $query_params = array('page' => 'espresso_about');
-            if (EE_System::instance()->detect_req_type() === EE_System::req_type_new_activation) {
-                $query_params['new_activation'] = true;
-            }
-            if (EE_System::instance()->detect_req_type() === EE_System::req_type_reactivation) {
-                $query_params['reactivation'] = true;
-            }
-            $url = add_query_arg($query_params, admin_url('admin.php'));
-            wp_safe_redirect($url);
-            exit();
-        }
-    }
-
-
-
-    /**
-     * load_core_configuration
-     * this is hooked into 'AHEE__EE_Bootstrap__load_core_configuration'
-     * which runs during the WP 'plugins_loaded' action at priority 5
-     *
-     * @return void
-     * @throws ReflectionException
-     */
-    public function load_core_configuration()
-    {
-        do_action('AHEE__EE_System__load_core_configuration__begin', $this);
-        $this->loader->getShared('EE_Load_Textdomain');
-        //load textdomain
-        EE_Load_Textdomain::load_textdomain();
-        // load and setup EE_Config and EE_Network_Config
-        $config = $this->loader->getShared('EE_Config');
-        $this->loader->getShared('EE_Network_Config');
-        // setup autoloaders
-        // enable logging?
-        if ($config->admin->use_full_logging) {
-            $this->loader->getShared('EE_Log');
-        }
-        // check for activation errors
-        $activation_errors = get_option('ee_plugin_activation_errors', false);
-        if ($activation_errors) {
-            EE_Error::add_error($activation_errors, __FILE__, __FUNCTION__, __LINE__);
-            update_option('ee_plugin_activation_errors', false);
-        }
-        // get model names
-        $this->_parse_model_names();
-        //load caf stuff a chance to play during the activation process too.
-        $this->_maybe_brew_regular();
-        do_action('AHEE__EE_System__load_core_configuration__complete', $this);
-    }
-
-
-
-    /**
-     * cycles through all of the models/*.model.php files, and assembles an array of model names
-     *
-     * @return void
-     * @throws ReflectionException
-     */
-    private function _parse_model_names()
-    {
-        //get all the files in the EE_MODELS folder that end in .model.php
-        $models                 = glob(EE_MODELS . '*.model.php');
-        $model_names            = array();
-        $non_abstract_db_models = array();
-        foreach ($models as $model) {
-            // get model classname
-            $classname       = EEH_File::get_classname_from_filepath_with_standard_filename($model);
-            $short_name      = str_replace('EEM_', '', $classname);
-            $reflectionClass = new ReflectionClass($classname);
-            if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
-                $non_abstract_db_models[ $short_name ] = $classname;
-            }
-            $model_names[ $short_name ] = $classname;
-        }
-        $this->registry->models                 = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
-        $this->registry->non_abstract_db_models = apply_filters(
-            'FHEE__EE_System__parse_implemented_model_names',
-            $non_abstract_db_models
-        );
-    }
-
-
-
-    /**
-     * The purpose of this method is to simply check for a file named "caffeinated/brewing_regular.php" for any hooks
-     * that need to be setup before our EE_System launches.
-     *
-     * @return void
-     */
-    private function _maybe_brew_regular()
-    {
-        if ((! defined('EE_DECAF') || EE_DECAF !== true) && is_readable(EE_CAFF_PATH . 'brewing_regular.php')) {
-            require_once EE_CAFF_PATH . 'brewing_regular.php';
-        }
-    }
-
-
-
-    /**
-     * register_shortcodes_modules_and_widgets
-     * generate lists of shortcodes and modules, then verify paths and classes
-     * This is hooked into 'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets'
-     * which runs during the WP 'plugins_loaded' action at priority 7
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function register_shortcodes_modules_and_widgets()
-    {
-        if ($this->request->isFrontend() || $this->request->isIframe()) {
-            try {
-                // load, register, and add shortcodes the new way
-                $this->loader->getShared(
-                    'EventEspresso\core\services\shortcodes\ShortcodesManager',
-                    array(
-                        // and the old way, but we'll put it under control of the new system
-                        EE_Config::getLegacyShortcodesManager(),
-                    )
-                );
-            } catch (Exception $exception) {
-                new ExceptionStackTraceDisplay($exception);
-            }
-        }
-        do_action('AHEE__EE_System__register_shortcodes_modules_and_widgets');
-        // check for addons using old hook point
-        if (has_action('AHEE__EE_System__register_shortcodes_modules_and_addons')) {
-            $this->_incompatible_addon_error();
-        }
-    }
-
-
-
-    /**
-     * _incompatible_addon_error
-     *
-     * @access public
-     * @return void
-     */
-    private function _incompatible_addon_error()
-    {
-        // get array of classes hooking into here
-        $class_names = EEH_Class_Tools::get_class_names_for_all_callbacks_on_hook(
-            'AHEE__EE_System__register_shortcodes_modules_and_addons'
-        );
-        if (! empty($class_names)) {
-            $msg = __(
-                'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
-                'event_espresso'
-            );
-            $msg .= '<ul>';
-            foreach ($class_names as $class_name) {
-                $msg .= '<li><b>Event Espresso - ' . str_replace(
-                        array('EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'), '',
-                        $class_name
-                    ) . '</b></li>';
-            }
-            $msg .= '</ul>';
-            $msg .= __(
-                'Compatibility issues can be avoided and/or resolved by keeping addons and plugins updated to the latest version.',
-                'event_espresso'
-            );
-            // save list of incompatible addons to wp-options for later use
-            add_option('ee_incompatible_addons', $class_names, '', 'no');
-            if (is_admin()) {
-                EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-            }
-        }
-    }
-
-
-
-    /**
-     * brew_espresso
-     * begins the process of setting hooks for initializing EE in the correct order
-     * This is happening on the 'AHEE__EE_Bootstrap__brew_espresso' hook point
-     * which runs during the WP 'plugins_loaded' action at priority 9
-     *
-     * @return void
-     */
-    public function brew_espresso()
-    {
-        do_action('AHEE__EE_System__brew_espresso__begin', $this);
-        // load some final core systems
-        add_action('init', array($this, 'set_hooks_for_core'), 1);
-        add_action('init', array($this, 'perform_activations_upgrades_and_migrations'), 3);
-        add_action('init', array($this, 'load_CPTs_and_session'), 5);
-        add_action('init', array($this, 'load_controllers'), 7);
-        add_action('init', array($this, 'core_loaded_and_ready'), 9);
-        add_action('init', array($this, 'initialize'), 10);
-        add_action('init', array($this, 'initialize_last'), 100);
-        if (is_admin() && apply_filters('FHEE__EE_System__brew_espresso__load_pue', true)) {
-            // pew pew pew
-            $this->loader->getShared('EE_PUE');
-            do_action('AHEE__EE_System__brew_espresso__after_pue_init');
-        }
-        do_action('AHEE__EE_System__brew_espresso__complete', $this);
-    }
-
-
-
-    /**
-     *    set_hooks_for_core
-     *
-     * @access public
-     * @return    void
-     * @throws EE_Error
-     */
-    public function set_hooks_for_core()
-    {
-        $this->_deactivate_incompatible_addons();
-        do_action('AHEE__EE_System__set_hooks_for_core');
-        $this->loader->getShared('EventEspresso\core\domain\values\session\SessionLifespan');
-        //caps need to be initialized on every request so that capability maps are set.
-        //@see https://events.codebasehq.com/projects/event-espresso/tickets/8674
-        $this->registry->CAP->init_caps();
-    }
-
-
-
-    /**
-     * Using the information gathered in EE_System::_incompatible_addon_error,
-     * deactivates any addons considered incompatible with the current version of EE
-     */
-    private function _deactivate_incompatible_addons()
-    {
-        $incompatible_addons = get_option('ee_incompatible_addons', array());
-        if (! empty($incompatible_addons)) {
-            $active_plugins = get_option('active_plugins', array());
-            foreach ($active_plugins as $active_plugin) {
-                foreach ($incompatible_addons as $incompatible_addon) {
-                    if (strpos($active_plugin, $incompatible_addon) !== false) {
-                        unset($_GET['activate']);
-                        espresso_deactivate_plugin($active_plugin);
-                    }
-                }
-            }
-        }
-    }
-
-
-
-    /**
-     *    perform_activations_upgrades_and_migrations
-     *
-     * @access public
-     * @return    void
-     */
-    public function perform_activations_upgrades_and_migrations()
-    {
-        //first check if we had previously attempted to setup EE's directories but failed
-        if ($this->request->isActivation() && EEH_Activation::upload_directories_incomplete()) {
-            EEH_Activation::create_upload_directories();
-        }
-        do_action('AHEE__EE_System__perform_activations_upgrades_and_migrations');
-    }
-
-
-
-    /**
-     *    load_CPTs_and_session
-     *
-     * @access public
-     * @return    void
-     */
-    public function load_CPTs_and_session()
-    {
-        do_action('AHEE__EE_System__load_CPTs_and_session__start');
-        // register Custom Post Types
-        $this->loader->getShared('EE_Register_CPTs');
-        do_action('AHEE__EE_System__load_CPTs_and_session__complete');
-    }
-
-
-
-    /**
-     * load_controllers
-     * this is the best place to load any additional controllers that needs access to EE core.
-     * it is expected that all basic core EE systems, that are not dependant on the current request are loaded at this
-     * time
-     *
-     * @access public
-     * @return void
-     */
-    public function load_controllers()
-    {
-        do_action('AHEE__EE_System__load_controllers__start');
-        // let's get it started
-        if (
-            ! $this->maintenance_mode->level()
-            && ($this->request->isFrontend() || $this->request->isFrontAjax())
-        ) {
-            do_action('AHEE__EE_System__load_controllers__load_front_controllers');
-            $this->loader->getShared('EE_Front_Controller');
-        } elseif ($this->request->isAdmin() || $this->request->isAdminAjax()) {
-            do_action('AHEE__EE_System__load_controllers__load_admin_controllers');
-            $this->loader->getShared('EE_Admin');
-        }
-        do_action('AHEE__EE_System__load_controllers__complete');
-    }
-
-
-
-    /**
-     * core_loaded_and_ready
-     * all of the basic EE core should be loaded at this point and available regardless of M-Mode
-     *
-     * @access public
-     * @return void
-     */
-    public function core_loaded_and_ready()
-    {
-        if (
-            $this->request->isAdmin()
-            || $this->request->isEeAjax()
-            || $this->request->isFrontend()
-        ) {
-            $this->loader->getShared('EE_Session');
-        }
-        do_action('AHEE__EE_System__core_loaded_and_ready');
-        // load_espresso_template_tags
-        if (
-            is_readable(EE_PUBLIC . 'template_tags.php')
-            && ($this->request->isFrontend() || $this->request->isIframe() || $this->request->isFeed())
-        ) {
-            require_once EE_PUBLIC . 'template_tags.php';
-        }
-        do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
-        if ($this->request->isAdmin() || $this->request->isFrontend() || $this->request->isIframe()) {
-            $this->loader->getShared('EventEspresso\core\services\assets\Registry');
-        }
-    }
-
-
-
-    /**
-     * initialize
-     * this is the best place to begin initializing client code
-     *
-     * @access public
-     * @return void
-     */
-    public function initialize()
-    {
-        do_action('AHEE__EE_System__initialize');
-    }
-
-
-
-    /**
-     * initialize_last
-     * this is run really late during the WP init hook point, and ensures that mostly everything else that needs to
-     * initialize has done so
-     *
-     * @access public
-     * @return void
-     */
-    public function initialize_last()
-    {
-        do_action('AHEE__EE_System__initialize_last');
-        add_action('admin_bar_init', array($this, 'addEspressoToolbar'));
-    }
-
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     */
-    public function addEspressoToolbar()
-    {
-        $this->loader->getShared(
-            'EventEspresso\core\domain\services\admin\AdminToolBar',
-            array($this->registry->CAP)
-        );
-    }
-
-
-
-    /**
-     * do_not_cache
-     * sets no cache headers and defines no cache constants for WP plugins
-     *
-     * @access public
-     * @return void
-     */
-    public static function do_not_cache()
-    {
-        // set no cache constants
-        if (! defined('DONOTCACHEPAGE')) {
-            define('DONOTCACHEPAGE', true);
-        }
-        if (! defined('DONOTCACHCEOBJECT')) {
-            define('DONOTCACHCEOBJECT', true);
-        }
-        if (! defined('DONOTCACHEDB')) {
-            define('DONOTCACHEDB', true);
-        }
-        // add no cache headers
-        add_action('send_headers', array('EE_System', 'nocache_headers'), 10);
-        // plus a little extra for nginx and Google Chrome
-        add_filter('nocache_headers', array('EE_System', 'extra_nocache_headers'), 10, 1);
-        // prevent browsers from prefetching of the rel='next' link, because it may contain content that interferes with the registration process
-        remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
-    }
-
-
-
-    /**
-     *    extra_nocache_headers
-     *
-     * @access    public
-     * @param $headers
-     * @return    array
-     */
-    public static function extra_nocache_headers($headers)
-    {
-        // for NGINX
-        $headers['X-Accel-Expires'] = 0;
-        // plus extra for Google Chrome since it doesn't seem to respect "no-cache", but WILL respect "no-store"
-        $headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0';
-        return $headers;
-    }
-
-
-
-    /**
-     *    nocache_headers
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function nocache_headers()
-    {
-        nocache_headers();
-    }
-
-
-
-    /**
-     * simply hooks into "wp_list_pages_exclude" filter (for wp_list_pages method) and makes sure EE critical pages are
-     * never returned with the function.
-     *
-     * @param  array $exclude_array any existing pages being excluded are in this array.
-     * @return array
-     */
-    public function remove_pages_from_wp_list_pages($exclude_array)
-    {
-        return array_merge($exclude_array, $this->registry->CFG->core->get_critical_pages_array());
-    }
+	/**
+	 * indicates this is a 'normal' request. Ie, not activation, nor upgrade, nor activation.
+	 * So examples of this would be a normal GET request on the frontend or backend, or a POST, etc
+	 */
+	const req_type_normal = 0;
+
+	/**
+	 * Indicates this is a brand new installation of EE so we should install
+	 * tables and default data etc
+	 */
+	const req_type_new_activation = 1;
+
+	/**
+	 * we've detected that EE has been reactivated (or EE was activated during maintenance mode,
+	 * and we just exited maintenance mode). We MUST check the database is setup properly
+	 * and that default data is setup too
+	 */
+	const req_type_reactivation = 2;
+
+	/**
+	 * indicates that EE has been upgraded since its previous request.
+	 * We may have data migration scripts to call and will want to trigger maintenance mode
+	 */
+	const req_type_upgrade = 3;
+
+	/**
+	 * TODO  will detect that EE has been DOWNGRADED. We probably don't want to run in this case...
+	 */
+	const req_type_downgrade = 4;
+
+	/**
+	 * @deprecated since version 4.6.0.dev.006
+	 * Now whenever a new_activation is detected the request type is still just
+	 * new_activation (same for reactivation, upgrade, downgrade etc), but if we'r ein maintenance mode
+	 * EE_System::initialize_db_if_no_migrations_required and EE_Addon::initialize_db_if_no_migrations_required
+	 * will instead enqueue that EE plugin's db initialization for when we're taken out of maintenance mode.
+	 * (Specifically, when the migration manager indicates migrations are finished
+	 * EE_Data_Migration_Manager::initialize_db_for_enqueued_ee_plugins() will be called)
+	 */
+	const req_type_activation_but_not_installed = 5;
+
+	/**
+	 * option prefix for recording the activation history (like core's "espresso_db_update") of addons
+	 */
+	const addon_activation_history_option_prefix = 'ee_addon_activation_history_';
+
+
+	/**
+	 * @var EE_System $_instance
+	 */
+	private static $_instance;
+
+	/**
+	 * @var EE_Registry $registry
+	 */
+	private $registry;
+
+	/**
+	 * @var LoaderInterface $loader
+	 */
+	private $loader;
+
+	/**
+	 * @var EE_Capabilities $capabilities
+	 */
+	private $capabilities;
+
+	/**
+	 * @var RequestInterface $request
+	 */
+	private $request;
+
+	/**
+	 * @var EE_Maintenance_Mode $maintenance_mode
+	 */
+	private $maintenance_mode;
+
+	/**
+	 * Stores which type of request this is, options being one of the constants on EE_System starting with req_type_*.
+	 * It can be a brand-new activation, a reactivation, an upgrade, a downgrade, or a normal request.
+	 *
+	 * @var int $_req_type
+	 */
+	private $_req_type;
+
+	/**
+	 * Whether or not there was a non-micro version change in EE core version during this request
+	 *
+	 * @var boolean $_major_version_change
+	 */
+	private $_major_version_change = false;
+
+	/**
+	 * A Context DTO dedicated solely to identifying the current request type.
+	 *
+	 * @var RequestTypeContextCheckerInterface $request_type
+	 */
+	private $request_type;
+
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param EE_Registry|null         $registry
+	 * @param LoaderInterface|null     $loader
+	 * @param RequestInterface|null          $request
+	 * @param EE_Maintenance_Mode|null $maintenance_mode
+	 * @return EE_System
+	 */
+	public static function instance(
+		EE_Registry $registry = null,
+		LoaderInterface $loader = null,
+		RequestInterface $request = null,
+		EE_Maintenance_Mode $maintenance_mode = null
+	) {
+		// check if class object is instantiated
+		if (! self::$_instance instanceof EE_System) {
+			self::$_instance = new self($registry, $loader, $request, $maintenance_mode);
+		}
+		return self::$_instance;
+	}
+
+
+
+	/**
+	 * resets the instance and returns it
+	 *
+	 * @return EE_System
+	 */
+	public static function reset()
+	{
+		self::$_instance->_req_type = null;
+		//make sure none of the old hooks are left hanging around
+		remove_all_actions('AHEE__EE_System__perform_activations_upgrades_and_migrations');
+		//we need to reset the migration manager in order for it to detect DMSs properly
+		EE_Data_Migration_Manager::reset();
+		self::instance()->detect_activations_or_upgrades();
+		self::instance()->perform_activations_upgrades_and_migrations();
+		return self::instance();
+	}
+
+
+
+	/**
+	 * sets hooks for running rest of system
+	 * provides "AHEE__EE_System__construct__complete" hook for EE Addons to use as their starting point
+	 * starting EE Addons from any other point may lead to problems
+	 *
+	 * @param EE_Registry         $registry
+	 * @param LoaderInterface     $loader
+	 * @param RequestInterface          $request
+	 * @param EE_Maintenance_Mode $maintenance_mode
+	 */
+	private function __construct(
+		EE_Registry $registry,
+		LoaderInterface $loader,
+		RequestInterface $request,
+		EE_Maintenance_Mode $maintenance_mode
+	) {
+		$this->registry         = $registry;
+		$this->loader           = $loader;
+		$this->request          = $request;
+		$this->maintenance_mode = $maintenance_mode;
+		do_action('AHEE__EE_System__construct__begin', $this);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'loadCapabilities'),
+			5
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'loadCommandBus'),
+			7
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'loadPluginApi'),
+			9
+		);
+		// allow addons to load first so that they can register autoloaders, set hooks for running DMS's, etc
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			array($this, 'load_espresso_addons')
+		);
+		// when an ee addon is activated, we want to call the core hook(s) again
+		// because the newly-activated addon didn't get a chance to run at all
+		add_action('activate_plugin', array($this, 'load_espresso_addons'), 1);
+		// detect whether install or upgrade
+		add_action(
+			'AHEE__EE_Bootstrap__detect_activations_or_upgrades',
+			array($this, 'detect_activations_or_upgrades'),
+			3
+		);
+		// load EE_Config, EE_Textdomain, etc
+		add_action(
+			'AHEE__EE_Bootstrap__load_core_configuration',
+			array($this, 'load_core_configuration'),
+			5
+		);
+		// load EE_Config, EE_Textdomain, etc
+		add_action(
+			'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets',
+			array($this, 'register_shortcodes_modules_and_widgets'),
+			7
+		);
+		// you wanna get going? I wanna get going... let's get going!
+		add_action(
+			'AHEE__EE_Bootstrap__brew_espresso',
+			array($this, 'brew_espresso'),
+			9
+		);
+		//other housekeeping
+		//exclude EE critical pages from wp_list_pages
+		add_filter(
+			'wp_list_pages_excludes',
+			array($this, 'remove_pages_from_wp_list_pages'),
+			10
+		);
+		// ALL EE Addons should use the following hook point to attach their initial setup too
+		// it's extremely important for EE Addons to register any class autoloaders so that they can be available when the EE_Config loads
+		do_action('AHEE__EE_System__construct__complete', $this);
+	}
+
+
+	/**
+	 * load and setup EE_Capabilities
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function loadCapabilities()
+	{
+		$this->capabilities = $this->loader->getShared('EE_Capabilities');
+		add_action(
+			'AHEE__EE_Capabilities__init_caps__before_initialization',
+			function ()
+			{
+				LoaderFactory::getLoader()->getShared('EE_Payment_Method_Manager');
+			}
+		);
+	}
+
+
+
+	/**
+	 * create and cache the CommandBus, and also add middleware
+	 * The CapChecker middleware requires the use of EE_Capabilities
+	 * which is why we need to load the CommandBus after Caps are set up
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function loadCommandBus()
+	{
+		$this->loader->getShared(
+			'CommandBusInterface',
+			array(
+				null,
+				apply_filters(
+					'FHEE__EE_Load_Espresso_Core__handle_request__CommandBus_middleware',
+					array(
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\CapChecker'),
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\AddActionHook'),
+					)
+				),
+			)
+		);
+	}
+
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function loadPluginApi()
+	{
+		// set autoloaders for all of the classes implementing EEI_Plugin_API
+		// which provide helpers for EE plugin authors to more easily register certain components with EE.
+		EEH_Autoloader::instance()->register_autoloaders_for_each_file_in_folder(EE_LIBRARIES . 'plugin_api');
+		$this->loader->getShared('EE_Request_Handler');
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @param string $version_constant
+	 * @param string $min_version_required
+	 * @param string $load_callback
+	 * @param string $plugin_file_constant
+	 * @return void
+	 */
+	private function deactivateIncompatibleAddon(
+		$addon_name,
+		$version_constant,
+		$min_version_required,
+		$load_callback,
+		$plugin_file_constant
+	) {
+		if (! defined($version_constant)) {
+			return;
+		}
+		$addon_version = constant($version_constant);
+		if ($addon_version && version_compare($addon_version, $min_version_required, '<')) {
+			remove_action('AHEE__EE_System__load_espresso_addons', $load_callback);
+			if (! function_exists('deactivate_plugins')) {
+				require_once ABSPATH . 'wp-admin/includes/plugin.php';
+			}
+			deactivate_plugins(plugin_basename(constant($plugin_file_constant)));
+			unset($_GET['activate'], $_REQUEST['activate'], $_GET['activate-multi'], $_REQUEST['activate-multi']);
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'We\'re sorry, but the Event Espresso %1$s addon was deactivated because version %2$s or higher is required with this version of Event Espresso core.',
+						'event_espresso'
+					),
+					$addon_name,
+					$min_version_required
+				),
+				__FILE__, __FUNCTION__ . "({$addon_name})", __LINE__
+			);
+			EE_Error::get_notices(false, true);
+		}
+	}
+
+
+	/**
+	 * load_espresso_addons
+	 * allow addons to load first so that they can set hooks for running DMS's, etc
+	 * this is hooked into both:
+	 *    'AHEE__EE_Bootstrap__load_core_configuration'
+	 *        which runs during the WP 'plugins_loaded' action at priority 5
+	 *    and the WP 'activate_plugin' hook point
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function load_espresso_addons()
+	{
+		$this->deactivateIncompatibleAddon(
+			'Wait Lists',
+			'EE_WAIT_LISTS_VERSION',
+			'1.0.0.beta.074',
+			'load_espresso_wait_lists',
+			'EE_WAIT_LISTS_PLUGIN_FILE'
+		);
+		$this->deactivateIncompatibleAddon(
+			'Automated Upcoming Event Notifications',
+			'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_VERSION',
+			'1.0.0.beta.091',
+			'load_espresso_automated_upcoming_event_notification',
+			'EE_AUTOMATED_UPCOMING_EVENT_NOTIFICATION_PLUGIN_FILE'
+		);
+		do_action('AHEE__EE_System__load_espresso_addons');
+		//if the WP API basic auth plugin isn't already loaded, load it now.
+		//We want it for mobile apps. Just include the entire plugin
+		//also, don't load the basic auth when a plugin is getting activated, because
+		//it could be the basic auth plugin, and it doesn't check if its methods are already defined
+		//and causes a fatal error
+		if (
+			$this->request->getRequestParam('activate') !== 'true'
+			&& ! function_exists('json_basic_auth_handler')
+			&& ! function_exists('json_basic_auth_error')
+			&& ! in_array(
+				$this->request->getRequestParam('action'),
+				array('activate', 'activate-selected'),
+				true
+			)
+		) {
+			include_once EE_THIRD_PARTY . 'wp-api-basic-auth' . DS . 'basic-auth.php';
+		}
+		do_action('AHEE__EE_System__load_espresso_addons__complete');
+	}
+
+
+
+	/**
+	 * detect_activations_or_upgrades
+	 * Checks for activation or upgrade of core first;
+	 * then also checks if any registered addons have been activated or upgraded
+	 * This is hooked into 'AHEE__EE_Bootstrap__detect_activations_or_upgrades'
+	 * which runs during the WP 'plugins_loaded' action at priority 3
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function detect_activations_or_upgrades()
+	{
+		//first off: let's make sure to handle core
+		$this->detect_if_activation_or_upgrade();
+		foreach ($this->registry->addons as $addon) {
+			if ($addon instanceof EE_Addon) {
+				//detect teh request type for that addon
+				$addon->detect_activation_or_upgrade();
+			}
+		}
+	}
+
+
+
+	/**
+	 * detect_if_activation_or_upgrade
+	 * Takes care of detecting whether this is a brand new install or code upgrade,
+	 * and either setting up the DB or setting up maintenance mode etc.
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function detect_if_activation_or_upgrade()
+	{
+		do_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin');
+		// check if db has been updated, or if its a brand-new installation
+		$espresso_db_update = $this->fix_espresso_db_upgrade_option();
+		$request_type       = $this->detect_req_type($espresso_db_update);
+		//EEH_Debug_Tools::printr( $request_type, '$request_type', __FILE__, __LINE__ );
+		switch ($request_type) {
+			case EE_System::req_type_new_activation:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__new_activation');
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_reactivation:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__reactivation');
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_upgrade:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__upgrade');
+				//migrations may be required now that we've upgraded
+				$this->maintenance_mode->set_maintenance_mode_if_db_old();
+				$this->_handle_core_version_change($espresso_db_update);
+				//				echo "done upgrade";die;
+				break;
+			case EE_System::req_type_downgrade:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__downgrade');
+				//its possible migrations are no longer required
+				$this->maintenance_mode->set_maintenance_mode_if_db_old();
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_normal:
+			default:
+				break;
+		}
+		do_action('AHEE__EE_System__detect_if_activation_or_upgrade__complete');
+	}
+
+
+
+	/**
+	 * Updates the list of installed versions and sets hooks for
+	 * initializing the database later during the request
+	 *
+	 * @param array $espresso_db_update
+	 */
+	private function _handle_core_version_change($espresso_db_update)
+	{
+		$this->update_list_of_installed_versions($espresso_db_update);
+		//get ready to verify the DB is ok (provided we aren't in maintenance mode, of course)
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			array($this, 'initialize_db_if_no_migrations_required')
+		);
+	}
+
+
+
+	/**
+	 * standardizes the wp option 'espresso_db_upgrade' which actually stores
+	 * information about what versions of EE have been installed and activated,
+	 * NOT necessarily the state of the database
+	 *
+	 * @param mixed $espresso_db_update           the value of the WordPress option.
+	 *                                            If not supplied, fetches it from the options table
+	 * @return array the correct value of 'espresso_db_upgrade', after saving it, if it needed correction
+	 */
+	private function fix_espresso_db_upgrade_option($espresso_db_update = null)
+	{
+		do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
+		if (! $espresso_db_update) {
+			$espresso_db_update = get_option('espresso_db_update');
+		}
+		// check that option is an array
+		if (! is_array($espresso_db_update)) {
+			// if option is FALSE, then it never existed
+			if ($espresso_db_update === false) {
+				// make $espresso_db_update an array and save option with autoload OFF
+				$espresso_db_update = array();
+				add_option('espresso_db_update', $espresso_db_update, '', 'no');
+			} else {
+				// option is NOT FALSE but also is NOT an array, so make it an array and save it
+				$espresso_db_update = array($espresso_db_update => array());
+				update_option('espresso_db_update', $espresso_db_update);
+			}
+		} else {
+			$corrected_db_update = array();
+			//if IS an array, but is it an array where KEYS are version numbers, and values are arrays?
+			foreach ($espresso_db_update as $should_be_version_string => $should_be_array) {
+				if (is_int($should_be_version_string) && ! is_array($should_be_array)) {
+					//the key is an int, and the value IS NOT an array
+					//so it must be numerically-indexed, where values are versions installed...
+					//fix it!
+					$version_string                         = $should_be_array;
+					$corrected_db_update[ $version_string ] = array('unknown-date');
+				} else {
+					//ok it checks out
+					$corrected_db_update[ $should_be_version_string ] = $should_be_array;
+				}
+			}
+			$espresso_db_update = $corrected_db_update;
+			update_option('espresso_db_update', $espresso_db_update);
+		}
+		do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__complete', $espresso_db_update);
+		return $espresso_db_update;
+	}
+
+
+
+	/**
+	 * Does the traditional work of setting up the plugin's database and adding default data.
+	 * If migration script/process did not exist, this is what would happen on every activation/reactivation/upgrade.
+	 * NOTE: if we're in maintenance mode (which would be the case if we detect there are data
+	 * migration scripts that need to be run and a version change happens), enqueues core for database initialization,
+	 * so that it will be done when migrations are finished
+	 *
+	 * @param boolean $initialize_addons_too if true, we double-check addons' database tables etc too;
+	 * @param boolean $verify_schema         if true will re-check the database tables have the correct schema.
+	 *                                       This is a resource-intensive job
+	 *                                       so we prefer to only do it when necessary
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function initialize_db_if_no_migrations_required($initialize_addons_too = false, $verify_schema = true)
+	{
+		$request_type = $this->detect_req_type();
+		//only initialize system if we're not in maintenance mode.
+		if ($this->maintenance_mode->level() !== EE_Maintenance_Mode::level_2_complete_maintenance) {
+			update_option('ee_flush_rewrite_rules', true);
+			if ($verify_schema) {
+				EEH_Activation::initialize_db_and_folders();
+			}
+			EEH_Activation::initialize_db_content();
+			EEH_Activation::system_initialization();
+			if ($initialize_addons_too) {
+				$this->initialize_addons();
+			}
+		} else {
+			EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for('Core');
+		}
+		if ($request_type === EE_System::req_type_new_activation
+			|| $request_type === EE_System::req_type_reactivation
+			|| (
+				$request_type === EE_System::req_type_upgrade
+				&& $this->is_major_version_change()
+			)
+		) {
+			add_action('AHEE__EE_System__initialize_last', array($this, 'redirect_to_about_ee'), 9);
+		}
+	}
+
+
+
+	/**
+	 * Initializes the db for all registered addons
+	 *
+	 * @throws EE_Error
+	 */
+	public function initialize_addons()
+	{
+		//foreach registered addon, make sure its db is up-to-date too
+		foreach ($this->registry->addons as $addon) {
+			if ($addon instanceof EE_Addon) {
+				$addon->initialize_db_if_no_migrations_required();
+			}
+		}
+	}
+
+
+
+	/**
+	 * Adds the current code version to the saved wp option which stores a list of all ee versions ever installed.
+	 *
+	 * @param    array  $version_history
+	 * @param    string $current_version_to_add version to be added to the version history
+	 * @return    boolean success as to whether or not this option was changed
+	 */
+	public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null)
+	{
+		if (! $version_history) {
+			$version_history = $this->fix_espresso_db_upgrade_option($version_history);
+		}
+		if ($current_version_to_add === null) {
+			$current_version_to_add = espresso_version();
+		}
+		$version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
+		// re-save
+		return update_option('espresso_db_update', $version_history);
+	}
+
+
+
+	/**
+	 * Detects if the current version indicated in the has existed in the list of
+	 * previously-installed versions of EE (espresso_db_update). Does NOT modify it (ie, no side-effect)
+	 *
+	 * @param array $espresso_db_update array from the wp option stored under the name 'espresso_db_update'.
+	 *                                  If not supplied, fetches it from the options table.
+	 *                                  Also, caches its result so later parts of the code can also know whether
+	 *                                  there's been an update or not. This way we can add the current version to
+	 *                                  espresso_db_update, but still know if this is a new install or not
+	 * @return int one of the constants on EE_System::req_type_
+	 */
+	public function detect_req_type($espresso_db_update = null)
+	{
+		if ($this->_req_type === null) {
+			$espresso_db_update          = ! empty($espresso_db_update)
+				? $espresso_db_update
+				: $this->fix_espresso_db_upgrade_option();
+			$this->_req_type             = EE_System::detect_req_type_given_activation_history(
+				$espresso_db_update,
+				'ee_espresso_activation', espresso_version()
+			);
+			$this->_major_version_change = $this->_detect_major_version_change($espresso_db_update);
+			$this->request->setIsActivation($this->_req_type !== EE_System::req_type_normal);
+		}
+		return $this->_req_type;
+	}
+
+
+
+	/**
+	 * Returns whether or not there was a non-micro version change (ie, change in either
+	 * the first or second number in the version. Eg 4.9.0.rc.001 to 4.10.0.rc.000,
+	 * but not 4.9.0.rc.0001 to 4.9.1.rc.0001
+	 *
+	 * @param $activation_history
+	 * @return bool
+	 */
+	private function _detect_major_version_change($activation_history)
+	{
+		$previous_version       = EE_System::_get_most_recently_active_version_from_activation_history($activation_history);
+		$previous_version_parts = explode('.', $previous_version);
+		$current_version_parts  = explode('.', espresso_version());
+		return isset($previous_version_parts[0], $previous_version_parts[1], $current_version_parts[0], $current_version_parts[1])
+			   && ($previous_version_parts[0] !== $current_version_parts[0]
+				   || $previous_version_parts[1] !== $current_version_parts[1]
+			   );
+	}
+
+
+
+	/**
+	 * Returns true if either the major or minor version of EE changed during this request.
+	 * Eg 4.9.0.rc.001 to 4.10.0.rc.000, but not 4.9.0.rc.0001 to 4.9.1.rc.0001
+	 *
+	 * @return bool
+	 */
+	public function is_major_version_change()
+	{
+		return $this->_major_version_change;
+	}
+
+
+
+	/**
+	 * Determines the request type for any ee addon, given three piece of info: the current array of activation
+	 * histories (for core that' 'espresso_db_update' wp option); the name of the WordPress option which is temporarily
+	 * set upon activation of the plugin (for core it's 'ee_espresso_activation'); and the version that this plugin was
+	 * just activated to (for core that will always be espresso_version())
+	 *
+	 * @param array  $activation_history_for_addon     the option's value which stores the activation history for this
+	 *                                                 ee plugin. for core that's 'espresso_db_update'
+	 * @param string $activation_indicator_option_name the name of the WordPress option that is temporarily set to
+	 *                                                 indicate that this plugin was just activated
+	 * @param string $version_to_upgrade_to            the version that was just upgraded to (for core that will be
+	 *                                                 espresso_version())
+	 * @return int one of the constants on EE_System::req_type_*
+	 */
+	public static function detect_req_type_given_activation_history(
+		$activation_history_for_addon,
+		$activation_indicator_option_name,
+		$version_to_upgrade_to
+	) {
+		$version_is_higher = self::_new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to);
+		if ($activation_history_for_addon) {
+			//it exists, so this isn't a completely new install
+			//check if this version already in that list of previously installed versions
+			if (! isset($activation_history_for_addon[ $version_to_upgrade_to ])) {
+				//it a version we haven't seen before
+				if ($version_is_higher === 1) {
+					$req_type = EE_System::req_type_upgrade;
+				} else {
+					$req_type = EE_System::req_type_downgrade;
+				}
+				delete_option($activation_indicator_option_name);
+			} else {
+				// its not an update. maybe a reactivation?
+				if (get_option($activation_indicator_option_name, false)) {
+					if ($version_is_higher === -1) {
+						$req_type = EE_System::req_type_downgrade;
+					} elseif ($version_is_higher === 0) {
+						//we've seen this version before, but it's an activation. must be a reactivation
+						$req_type = EE_System::req_type_reactivation;
+					} else {//$version_is_higher === 1
+						$req_type = EE_System::req_type_upgrade;
+					}
+					delete_option($activation_indicator_option_name);
+				} else {
+					//we've seen this version before and the activation indicate doesn't show it was just activated
+					if ($version_is_higher === -1) {
+						$req_type = EE_System::req_type_downgrade;
+					} elseif ($version_is_higher === 0) {
+						//we've seen this version before and it's not an activation. its normal request
+						$req_type = EE_System::req_type_normal;
+					} else {//$version_is_higher === 1
+						$req_type = EE_System::req_type_upgrade;
+					}
+				}
+			}
+		} else {
+			//brand new install
+			$req_type = EE_System::req_type_new_activation;
+			delete_option($activation_indicator_option_name);
+		}
+		return $req_type;
+	}
+
+
+
+	/**
+	 * Detects if the $version_to_upgrade_to is higher than the most recent version in
+	 * the $activation_history_for_addon
+	 *
+	 * @param array  $activation_history_for_addon (keys are versions, values are arrays of times activated,
+	 *                                             sometimes containing 'unknown-date'
+	 * @param string $version_to_upgrade_to        (current version)
+	 * @return int results of version_compare( $version_to_upgrade_to, $most_recently_active_version ).
+	 *                                             ie, -1 if $version_to_upgrade_to is LOWER (downgrade);
+	 *                                             0 if $version_to_upgrade_to MATCHES (reactivation or normal request);
+	 *                                             1 if $version_to_upgrade_to is HIGHER (upgrade) ;
+	 */
+	private static function _new_version_is_higher($activation_history_for_addon, $version_to_upgrade_to)
+	{
+		//find the most recently-activated version
+		$most_recently_active_version =
+			EE_System::_get_most_recently_active_version_from_activation_history($activation_history_for_addon);
+		return version_compare($version_to_upgrade_to, $most_recently_active_version);
+	}
+
+
+
+	/**
+	 * Gets the most recently active version listed in the activation history,
+	 * and if none are found (ie, it's a brand new install) returns '0.0.0.dev.000'.
+	 *
+	 * @param array $activation_history  (keys are versions, values are arrays of times activated,
+	 *                                   sometimes containing 'unknown-date'
+	 * @return string
+	 */
+	private static function _get_most_recently_active_version_from_activation_history($activation_history)
+	{
+		$most_recently_active_version_activation = '1970-01-01 00:00:00';
+		$most_recently_active_version            = '0.0.0.dev.000';
+		if (is_array($activation_history)) {
+			foreach ($activation_history as $version => $times_activated) {
+				//check there is a record of when this version was activated. Otherwise,
+				//mark it as unknown
+				if (! $times_activated) {
+					$times_activated = array('unknown-date');
+				}
+				if (is_string($times_activated)) {
+					$times_activated = array($times_activated);
+				}
+				foreach ($times_activated as $an_activation) {
+					if ($an_activation !== 'unknown-date'
+						&& $an_activation
+						   > $most_recently_active_version_activation) {
+						$most_recently_active_version            = $version;
+						$most_recently_active_version_activation = $an_activation === 'unknown-date'
+							? '1970-01-01 00:00:00'
+							: $an_activation;
+					}
+				}
+			}
+		}
+		return $most_recently_active_version;
+	}
+
+
+
+	/**
+	 * This redirects to the about EE page after activation
+	 *
+	 * @return void
+	 */
+	public function redirect_to_about_ee()
+	{
+		$notices = EE_Error::get_notices(false);
+		//if current user is an admin and it's not an ajax or rest request
+		if (
+			! isset($notices['errors'])
+			&& $this->request->isAdmin()
+			&& apply_filters(
+				'FHEE__EE_System__redirect_to_about_ee__do_redirect',
+				$this->capabilities->current_user_can('manage_options', 'espresso_about_default')
+			)
+		) {
+			$query_params = array('page' => 'espresso_about');
+			if (EE_System::instance()->detect_req_type() === EE_System::req_type_new_activation) {
+				$query_params['new_activation'] = true;
+			}
+			if (EE_System::instance()->detect_req_type() === EE_System::req_type_reactivation) {
+				$query_params['reactivation'] = true;
+			}
+			$url = add_query_arg($query_params, admin_url('admin.php'));
+			wp_safe_redirect($url);
+			exit();
+		}
+	}
+
+
+
+	/**
+	 * load_core_configuration
+	 * this is hooked into 'AHEE__EE_Bootstrap__load_core_configuration'
+	 * which runs during the WP 'plugins_loaded' action at priority 5
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 */
+	public function load_core_configuration()
+	{
+		do_action('AHEE__EE_System__load_core_configuration__begin', $this);
+		$this->loader->getShared('EE_Load_Textdomain');
+		//load textdomain
+		EE_Load_Textdomain::load_textdomain();
+		// load and setup EE_Config and EE_Network_Config
+		$config = $this->loader->getShared('EE_Config');
+		$this->loader->getShared('EE_Network_Config');
+		// setup autoloaders
+		// enable logging?
+		if ($config->admin->use_full_logging) {
+			$this->loader->getShared('EE_Log');
+		}
+		// check for activation errors
+		$activation_errors = get_option('ee_plugin_activation_errors', false);
+		if ($activation_errors) {
+			EE_Error::add_error($activation_errors, __FILE__, __FUNCTION__, __LINE__);
+			update_option('ee_plugin_activation_errors', false);
+		}
+		// get model names
+		$this->_parse_model_names();
+		//load caf stuff a chance to play during the activation process too.
+		$this->_maybe_brew_regular();
+		do_action('AHEE__EE_System__load_core_configuration__complete', $this);
+	}
+
+
+
+	/**
+	 * cycles through all of the models/*.model.php files, and assembles an array of model names
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 */
+	private function _parse_model_names()
+	{
+		//get all the files in the EE_MODELS folder that end in .model.php
+		$models                 = glob(EE_MODELS . '*.model.php');
+		$model_names            = array();
+		$non_abstract_db_models = array();
+		foreach ($models as $model) {
+			// get model classname
+			$classname       = EEH_File::get_classname_from_filepath_with_standard_filename($model);
+			$short_name      = str_replace('EEM_', '', $classname);
+			$reflectionClass = new ReflectionClass($classname);
+			if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
+				$non_abstract_db_models[ $short_name ] = $classname;
+			}
+			$model_names[ $short_name ] = $classname;
+		}
+		$this->registry->models                 = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
+		$this->registry->non_abstract_db_models = apply_filters(
+			'FHEE__EE_System__parse_implemented_model_names',
+			$non_abstract_db_models
+		);
+	}
+
+
+
+	/**
+	 * The purpose of this method is to simply check for a file named "caffeinated/brewing_regular.php" for any hooks
+	 * that need to be setup before our EE_System launches.
+	 *
+	 * @return void
+	 */
+	private function _maybe_brew_regular()
+	{
+		if ((! defined('EE_DECAF') || EE_DECAF !== true) && is_readable(EE_CAFF_PATH . 'brewing_regular.php')) {
+			require_once EE_CAFF_PATH . 'brewing_regular.php';
+		}
+	}
+
+
+
+	/**
+	 * register_shortcodes_modules_and_widgets
+	 * generate lists of shortcodes and modules, then verify paths and classes
+	 * This is hooked into 'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets'
+	 * which runs during the WP 'plugins_loaded' action at priority 7
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function register_shortcodes_modules_and_widgets()
+	{
+		if ($this->request->isFrontend() || $this->request->isIframe()) {
+			try {
+				// load, register, and add shortcodes the new way
+				$this->loader->getShared(
+					'EventEspresso\core\services\shortcodes\ShortcodesManager',
+					array(
+						// and the old way, but we'll put it under control of the new system
+						EE_Config::getLegacyShortcodesManager(),
+					)
+				);
+			} catch (Exception $exception) {
+				new ExceptionStackTraceDisplay($exception);
+			}
+		}
+		do_action('AHEE__EE_System__register_shortcodes_modules_and_widgets');
+		// check for addons using old hook point
+		if (has_action('AHEE__EE_System__register_shortcodes_modules_and_addons')) {
+			$this->_incompatible_addon_error();
+		}
+	}
+
+
+
+	/**
+	 * _incompatible_addon_error
+	 *
+	 * @access public
+	 * @return void
+	 */
+	private function _incompatible_addon_error()
+	{
+		// get array of classes hooking into here
+		$class_names = EEH_Class_Tools::get_class_names_for_all_callbacks_on_hook(
+			'AHEE__EE_System__register_shortcodes_modules_and_addons'
+		);
+		if (! empty($class_names)) {
+			$msg = __(
+				'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
+				'event_espresso'
+			);
+			$msg .= '<ul>';
+			foreach ($class_names as $class_name) {
+				$msg .= '<li><b>Event Espresso - ' . str_replace(
+						array('EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'), '',
+						$class_name
+					) . '</b></li>';
+			}
+			$msg .= '</ul>';
+			$msg .= __(
+				'Compatibility issues can be avoided and/or resolved by keeping addons and plugins updated to the latest version.',
+				'event_espresso'
+			);
+			// save list of incompatible addons to wp-options for later use
+			add_option('ee_incompatible_addons', $class_names, '', 'no');
+			if (is_admin()) {
+				EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+			}
+		}
+	}
+
+
+
+	/**
+	 * brew_espresso
+	 * begins the process of setting hooks for initializing EE in the correct order
+	 * This is happening on the 'AHEE__EE_Bootstrap__brew_espresso' hook point
+	 * which runs during the WP 'plugins_loaded' action at priority 9
+	 *
+	 * @return void
+	 */
+	public function brew_espresso()
+	{
+		do_action('AHEE__EE_System__brew_espresso__begin', $this);
+		// load some final core systems
+		add_action('init', array($this, 'set_hooks_for_core'), 1);
+		add_action('init', array($this, 'perform_activations_upgrades_and_migrations'), 3);
+		add_action('init', array($this, 'load_CPTs_and_session'), 5);
+		add_action('init', array($this, 'load_controllers'), 7);
+		add_action('init', array($this, 'core_loaded_and_ready'), 9);
+		add_action('init', array($this, 'initialize'), 10);
+		add_action('init', array($this, 'initialize_last'), 100);
+		if (is_admin() && apply_filters('FHEE__EE_System__brew_espresso__load_pue', true)) {
+			// pew pew pew
+			$this->loader->getShared('EE_PUE');
+			do_action('AHEE__EE_System__brew_espresso__after_pue_init');
+		}
+		do_action('AHEE__EE_System__brew_espresso__complete', $this);
+	}
+
+
+
+	/**
+	 *    set_hooks_for_core
+	 *
+	 * @access public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function set_hooks_for_core()
+	{
+		$this->_deactivate_incompatible_addons();
+		do_action('AHEE__EE_System__set_hooks_for_core');
+		$this->loader->getShared('EventEspresso\core\domain\values\session\SessionLifespan');
+		//caps need to be initialized on every request so that capability maps are set.
+		//@see https://events.codebasehq.com/projects/event-espresso/tickets/8674
+		$this->registry->CAP->init_caps();
+	}
+
+
+
+	/**
+	 * Using the information gathered in EE_System::_incompatible_addon_error,
+	 * deactivates any addons considered incompatible with the current version of EE
+	 */
+	private function _deactivate_incompatible_addons()
+	{
+		$incompatible_addons = get_option('ee_incompatible_addons', array());
+		if (! empty($incompatible_addons)) {
+			$active_plugins = get_option('active_plugins', array());
+			foreach ($active_plugins as $active_plugin) {
+				foreach ($incompatible_addons as $incompatible_addon) {
+					if (strpos($active_plugin, $incompatible_addon) !== false) {
+						unset($_GET['activate']);
+						espresso_deactivate_plugin($active_plugin);
+					}
+				}
+			}
+		}
+	}
+
+
+
+	/**
+	 *    perform_activations_upgrades_and_migrations
+	 *
+	 * @access public
+	 * @return    void
+	 */
+	public function perform_activations_upgrades_and_migrations()
+	{
+		//first check if we had previously attempted to setup EE's directories but failed
+		if ($this->request->isActivation() && EEH_Activation::upload_directories_incomplete()) {
+			EEH_Activation::create_upload_directories();
+		}
+		do_action('AHEE__EE_System__perform_activations_upgrades_and_migrations');
+	}
+
+
+
+	/**
+	 *    load_CPTs_and_session
+	 *
+	 * @access public
+	 * @return    void
+	 */
+	public function load_CPTs_and_session()
+	{
+		do_action('AHEE__EE_System__load_CPTs_and_session__start');
+		// register Custom Post Types
+		$this->loader->getShared('EE_Register_CPTs');
+		do_action('AHEE__EE_System__load_CPTs_and_session__complete');
+	}
+
+
+
+	/**
+	 * load_controllers
+	 * this is the best place to load any additional controllers that needs access to EE core.
+	 * it is expected that all basic core EE systems, that are not dependant on the current request are loaded at this
+	 * time
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function load_controllers()
+	{
+		do_action('AHEE__EE_System__load_controllers__start');
+		// let's get it started
+		if (
+			! $this->maintenance_mode->level()
+			&& ($this->request->isFrontend() || $this->request->isFrontAjax())
+		) {
+			do_action('AHEE__EE_System__load_controllers__load_front_controllers');
+			$this->loader->getShared('EE_Front_Controller');
+		} elseif ($this->request->isAdmin() || $this->request->isAdminAjax()) {
+			do_action('AHEE__EE_System__load_controllers__load_admin_controllers');
+			$this->loader->getShared('EE_Admin');
+		}
+		do_action('AHEE__EE_System__load_controllers__complete');
+	}
+
+
+
+	/**
+	 * core_loaded_and_ready
+	 * all of the basic EE core should be loaded at this point and available regardless of M-Mode
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function core_loaded_and_ready()
+	{
+		if (
+			$this->request->isAdmin()
+			|| $this->request->isEeAjax()
+			|| $this->request->isFrontend()
+		) {
+			$this->loader->getShared('EE_Session');
+		}
+		do_action('AHEE__EE_System__core_loaded_and_ready');
+		// load_espresso_template_tags
+		if (
+			is_readable(EE_PUBLIC . 'template_tags.php')
+			&& ($this->request->isFrontend() || $this->request->isIframe() || $this->request->isFeed())
+		) {
+			require_once EE_PUBLIC . 'template_tags.php';
+		}
+		do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
+		if ($this->request->isAdmin() || $this->request->isFrontend() || $this->request->isIframe()) {
+			$this->loader->getShared('EventEspresso\core\services\assets\Registry');
+		}
+	}
+
+
+
+	/**
+	 * initialize
+	 * this is the best place to begin initializing client code
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function initialize()
+	{
+		do_action('AHEE__EE_System__initialize');
+	}
+
+
+
+	/**
+	 * initialize_last
+	 * this is run really late during the WP init hook point, and ensures that mostly everything else that needs to
+	 * initialize has done so
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function initialize_last()
+	{
+		do_action('AHEE__EE_System__initialize_last');
+		add_action('admin_bar_init', array($this, 'addEspressoToolbar'));
+	}
+
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function addEspressoToolbar()
+	{
+		$this->loader->getShared(
+			'EventEspresso\core\domain\services\admin\AdminToolBar',
+			array($this->registry->CAP)
+		);
+	}
+
+
+
+	/**
+	 * do_not_cache
+	 * sets no cache headers and defines no cache constants for WP plugins
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public static function do_not_cache()
+	{
+		// set no cache constants
+		if (! defined('DONOTCACHEPAGE')) {
+			define('DONOTCACHEPAGE', true);
+		}
+		if (! defined('DONOTCACHCEOBJECT')) {
+			define('DONOTCACHCEOBJECT', true);
+		}
+		if (! defined('DONOTCACHEDB')) {
+			define('DONOTCACHEDB', true);
+		}
+		// add no cache headers
+		add_action('send_headers', array('EE_System', 'nocache_headers'), 10);
+		// plus a little extra for nginx and Google Chrome
+		add_filter('nocache_headers', array('EE_System', 'extra_nocache_headers'), 10, 1);
+		// prevent browsers from prefetching of the rel='next' link, because it may contain content that interferes with the registration process
+		remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
+	}
+
+
+
+	/**
+	 *    extra_nocache_headers
+	 *
+	 * @access    public
+	 * @param $headers
+	 * @return    array
+	 */
+	public static function extra_nocache_headers($headers)
+	{
+		// for NGINX
+		$headers['X-Accel-Expires'] = 0;
+		// plus extra for Google Chrome since it doesn't seem to respect "no-cache", but WILL respect "no-store"
+		$headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0';
+		return $headers;
+	}
+
+
+
+	/**
+	 *    nocache_headers
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function nocache_headers()
+	{
+		nocache_headers();
+	}
+
+
+
+	/**
+	 * simply hooks into "wp_list_pages_exclude" filter (for wp_list_pages method) and makes sure EE critical pages are
+	 * never returned with the function.
+	 *
+	 * @param  array $exclude_array any existing pages being excluded are in this array.
+	 * @return array
+	 */
+	public function remove_pages_from_wp_list_pages($exclude_array)
+	{
+		return array_merge($exclude_array, $this->registry->CFG->core->get_critical_pages_array());
+	}
 
 
 

core/admin/EE_Admin_Page.core.php

Indentation +4125 added lines, -4125 removed lines

@@ -21,4210 +21,4210 @@
 {
 
 
-    //set in _init_page_props()
-    public $page_slug;
+	//set in _init_page_props()
+	public $page_slug;
 
-    public $page_label;
+	public $page_label;
 
-    public $page_folder;
+	public $page_folder;
 
-    //set in define_page_props()
-    protected $_admin_base_url;
+	//set in define_page_props()
+	protected $_admin_base_url;
 
-    protected $_admin_base_path;
+	protected $_admin_base_path;
 
-    protected $_admin_page_title;
+	protected $_admin_page_title;
 
-    protected $_labels;
+	protected $_labels;
 
 
-    //set early within EE_Admin_Init
-    protected $_wp_page_slug;
+	//set early within EE_Admin_Init
+	protected $_wp_page_slug;
 
-    //navtabs
-    protected $_nav_tabs;
+	//navtabs
+	protected $_nav_tabs;
 
-    protected $_default_nav_tab_name;
+	protected $_default_nav_tab_name;
 
-    /**
-     * @var array $_help_tour
-     */
-    protected $_help_tour = array();
+	/**
+	 * @var array $_help_tour
+	 */
+	protected $_help_tour = array();
 
 
-    //template variables (used by templates)
-    protected $_template_path;
+	//template variables (used by templates)
+	protected $_template_path;
 
-    protected $_column_template_path;
+	protected $_column_template_path;
 
-    /**
-     * @var array $_template_args
-     */
-    protected $_template_args = array();
+	/**
+	 * @var array $_template_args
+	 */
+	protected $_template_args = array();
 
-    /**
-     * this will hold the list table object for a given view.
-     *
-     * @var EE_Admin_List_Table $_list_table_object
-     */
-    protected $_list_table_object;
+	/**
+	 * this will hold the list table object for a given view.
+	 *
+	 * @var EE_Admin_List_Table $_list_table_object
+	 */
+	protected $_list_table_object;
 
-    //bools
-    protected $_is_UI_request = null; //this starts at null so we can have no header routes progress through two states.
+	//bools
+	protected $_is_UI_request = null; //this starts at null so we can have no header routes progress through two states.
 
-    protected $_routing;
+	protected $_routing;
 
-    //list table args
-    protected $_view;
+	//list table args
+	protected $_view;
 
-    protected $_views;
+	protected $_views;
 
 
-    //action => method pairs used for routing incoming requests
-    protected $_page_routes;
+	//action => method pairs used for routing incoming requests
+	protected $_page_routes;
 
-    /**
-     * @var array $_page_config
-     */
-    protected $_page_config;
+	/**
+	 * @var array $_page_config
+	 */
+	protected $_page_config;
 
-    /**
-     * the current page route and route config
-     *
-     * @var string $_route
-     */
-    protected $_route;
+	/**
+	 * the current page route and route config
+	 *
+	 * @var string $_route
+	 */
+	protected $_route;
 
-    /**
-     * @var string $_cpt_route
-     */
-    protected $_cpt_route;
+	/**
+	 * @var string $_cpt_route
+	 */
+	protected $_cpt_route;
 
-    /**
-     * @var array $_route_config
-     */
-    protected $_route_config;
+	/**
+	 * @var array $_route_config
+	 */
+	protected $_route_config;
 
-    /**
-     * Used to hold default query args for list table routes to help preserve stickiness of filters for carried out
-     * actions.
-     *
-     * @since 4.6.x
-     * @var array.
-     */
-    protected $_default_route_query_args;
-
-    //set via request page and action args.
-    protected $_current_page;
+	/**
+	 * Used to hold default query args for list table routes to help preserve stickiness of filters for carried out
+	 * actions.
+	 *
+	 * @since 4.6.x
+	 * @var array.
+	 */
+	protected $_default_route_query_args;
+
+	//set via request page and action args.
+	protected $_current_page;
 
-    protected $_current_view;
+	protected $_current_view;
 
-    protected $_current_page_view_url;
+	protected $_current_page_view_url;
 
-    //sanitized request action (and nonce)
+	//sanitized request action (and nonce)
 
-    /**
-     * @var string $_req_action
-     */
-    protected $_req_action;
-
-    /**
-     * @var string $_req_nonce
-     */
-    protected $_req_nonce;
-
-    //search related
-    protected $_search_btn_label;
-
-    protected $_search_box_callback;
-
-    /**
-     * WP Current Screen object
-     *
-     * @var WP_Screen
-     */
-    protected $_current_screen;
-
-    //for holding EE_Admin_Hooks object when needed (set via set_hook_object())
-    protected $_hook_obj;
-
-    //for holding incoming request data
-    protected $_req_data;
-
-    // yes / no array for admin form fields
-    protected $_yes_no_values = array();
-
-    //some default things shared by all child classes
-    protected $_default_espresso_metaboxes;
-
-    /**
-     *    EE_Registry Object
-     *
-     * @var    EE_Registry
-     */
-    protected $EE = null;
-
-
-
-    /**
-     * This is just a property that flags whether the given route is a caffeinated route or not.
-     *
-     * @var boolean
-     */
-    protected $_is_caf = false;
-
-
-
-    /**
-     * @Constructor
-     * @param bool $routing indicate whether we want to just load the object and handle routing or just load the object.
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function __construct($routing = true)
-    {
-        if (strpos($this->_get_dir(), 'caffeinated') !== false) {
-            $this->_is_caf = true;
-        }
-        $this->_yes_no_values = array(
-            array('id' => true, 'text' => esc_html__('Yes', 'event_espresso')),
-            array('id' => false, 'text' => esc_html__('No', 'event_espresso')),
-        );
-        //set the _req_data property.
-        $this->_req_data = array_merge($_GET, $_POST);
-        //routing enabled?
-        $this->_routing = $routing;
-        //set initial page props (child method)
-        $this->_init_page_props();
-        //set global defaults
-        $this->_set_defaults();
-        //set early because incoming requests could be ajax related and we need to register those hooks.
-        $this->_global_ajax_hooks();
-        $this->_ajax_hooks();
-        //other_page_hooks have to be early too.
-        $this->_do_other_page_hooks();
-        //This just allows us to have extending classes do something specific
-        // before the parent constructor runs _page_setup().
-        if (method_exists($this, '_before_page_setup')) {
-            $this->_before_page_setup();
-        }
-        //set up page dependencies
-        $this->_page_setup();
-    }
-
-
-
-    /**
-     * _init_page_props
-     * Child classes use to set at least the following properties:
-     * $page_slug.
-     * $page_label.
-     *
-     * @abstract
-     * @return void
-     */
-    abstract protected function _init_page_props();
-
-
-
-    /**
-     * _ajax_hooks
-     * child classes put all their add_action('wp_ajax_{name_of_hook}') hooks in here.
-     * Note: within the ajax callback methods.
-     *
-     * @abstract
-     * @return void
-     */
-    abstract protected function _ajax_hooks();
-
-
-
-    /**
-     * _define_page_props
-     * child classes define page properties in here.  Must include at least:
-     * $_admin_base_url = base_url for all admin pages
-     * $_admin_page_title = default admin_page_title for admin pages
-     * $_labels = array of default labels for various automatically generated elements:
-     *    array(
-     *        'buttons' => array(
-     *            'add' => esc_html__('label for add new button'),
-     *            'edit' => esc_html__('label for edit button'),
-     *            'delete' => esc_html__('label for delete button')
-     *            )
-     *        )
-     *
-     * @abstract
-     * @return void
-     */
-    abstract protected function _define_page_props();
-
-
-
-    /**
-     * _set_page_routes
-     * child classes use this to define the page routes for all subpages handled by the class.  Page routes are
-     * assigned to a action => method pairs in an array and to the $_page_routes property.  Each page route must also
-     * have a 'default' route. Here's the format
-     * $this->_page_routes = array(
-     *        'default' => array(
-     *            'func' => '_default_method_handling_route',
-     *            'args' => array('array','of','args'),
-     *            'noheader' => true, //add this in if this page route is processed before any headers are loaded (i.e.
-     *            ajax request, backend processing)
-     *            'headers_sent_route'=>'headers_route_reference', //add this if noheader=>true, and you want to load a
-     *            headers route after.  The string you enter here should match the defined route reference for a
-     *            headers sent route.
-     *            'capability' => 'route_capability', //indicate a string for minimum capability required to access
-     *            this route.
-     *            'obj_id' => 10 // if this route has an object id, then this can include it (used for capability
-     *            checks).
-     *        ),
-     *        'insert_item' => '_method_for_handling_insert_item' //this can be used if all we need to have is a
-     *        handling method.
-     *        )
-     * )
-     *
-     * @abstract
-     * @return void
-     */
-    abstract protected function _set_page_routes();
-
-
-
-    /**
-     * _set_page_config
-     * child classes use this to define the _page_config array for all subpages handled by the class. Each key in the
-     * array corresponds to the page_route for the loaded page. Format:
-     * $this->_page_config = array(
-     *        'default' => array(
-     *            'labels' => array(
-     *                'buttons' => array(
-     *                    'add' => esc_html__('label for adding item'),
-     *                    'edit' => esc_html__('label for editing item'),
-     *                    'delete' => esc_html__('label for deleting item')
-     *                ),
-     *                'publishbox' => esc_html__('Localized Title for Publish metabox', 'event_espresso')
-     *            ), //optional an array of custom labels for various automatically generated elements to use on the
-     *            page. If this isn't present then the defaults will be used as set for the $this->_labels in
-     *            _define_page_props() method
-     *            'nav' => array(
-     *                'label' => esc_html__('Label for Tab', 'event_espresso').
-     *                'url' => 'http://someurl', //automatically generated UNLESS you define
-     *                'css_class' => 'css-class', //automatically generated UNLESS you define
-     *                'order' => 10, //required to indicate tab position.
-     *                'persistent' => false //if you want the nav tab to ONLY display when the specific route is
-     *                displayed then add this parameter.
-     *            'list_table' => 'name_of_list_table' //string for list table class to be loaded for this admin_page.
-     *            'metaboxes' => array('metabox1', 'metabox2'), //if present this key indicates we want to load
-     *            metaboxes set for eventespresso admin pages.
-     *            'has_metaboxes' => true, //this boolean flag can simply be used to indicate if the route will have
-     *            metaboxes.  Typically this is used if the 'metaboxes' index is not used because metaboxes are added
-     *            later.  We just use this flag to make sure the necessary js gets enqueued on page load.
-     *            'has_help_popups' => false //defaults(true) //this boolean flag can simply be used to indicate if the
-     *            given route has help popups setup and if it does then we need to make sure thickbox is enqueued.
-     *            'columns' => array(4, 2), //this key triggers the setup of a page that uses columns (metaboxes).  The
-     *            array indicates the max number of columns (4) and the default number of columns on page load (2).
-     *            There is an option in the "screen_options" dropdown that is setup so users can pick what columns they
-     *            want to display.
-     *            'help_tabs' => array( //this is used for adding help tabs to a page
-     *                'tab_id' => array(
-     *                    'title' => 'tab_title',
-     *                    'filename' => 'name_of_file_containing_content', //this is the primary method for setting
-     *                    help tab content.  The fallback if it isn't present is to try a the callback.  Filename
-     *                    should match a file in the admin folder's "help_tabs" dir (ie..
-     *                    events/help_tabs/name_of_file_containing_content.help_tab.php)
-     *                    'callback' => 'callback_method_for_content', //if 'filename' isn't present then system will
-     *                    attempt to use the callback which should match the name of a method in the class
-     *                    ),
-     *                'tab2_id' => array(
-     *                    'title' => 'tab2 title',
-     *                    'filename' => 'file_name_2'
-     *                    'callback' => 'callback_method_for_content',
-     *                 ),
-     *            'help_sidebar' => 'callback_for_sidebar_content', //this is used for setting up the sidebar in the
-     *            help tab area on an admin page. @link
-     *            http://make.wordpress.org/core/2011/12/06/help-and-screen-api-changes-in-3-3/
-     *            'help_tour' => array(
-     *                'name_of_help_tour_class', //all help tours shoudl be a child class of EE_Help_Tour and located
-     *                in a folder for this admin page named "help_tours", a file name matching the key given here
-     *                (name_of_help_tour_class.class.php), and class matching key given here (name_of_help_tour_class)
-     *            ),
-     *            'require_nonce' => TRUE //this is used if you want to set a route to NOT require a nonce (default is
-     *            true if it isn't present).  To remove the requirement for a nonce check when this route is visited
-     *            just set
-     *            'require_nonce' to FALSE
-     *            )
-     * )
-     *
-     * @abstract
-     * @return void
-     */
-    abstract protected function _set_page_config();
-
-
-
-
-
-    /** end sample help_tour methods **/
-    /**
-     * _add_screen_options
-     * Child classes can add any extra wp_screen_options within this method using built-in WP functions/methods for
-     * doing so. Note child classes can also define _add_screen_options_($this->_current_view) to limit screen options
-     * to a particular view.
-     *
-     * @link   http://chrismarslender.com/wp-tutorials/wordpress-screen-options-tutorial/
-     *         see also WP_Screen object documents...
-     * @link   http://codex.wordpress.org/Class_Reference/WP_Screen
-     * @abstract
-     * @return void
-     */
-    abstract protected function _add_screen_options();
-
-
-
-    /**
-     * _add_feature_pointers
-     * Child classes should use this method for implementing any "feature pointers" (using built-in WP styling js).
-     * Note child classes can also define _add_feature_pointers_($this->_current_view) to limit screen options to a
-     * particular view. Note: this is just a placeholder for now.  Implementation will come down the road See:
-     * WP_Internal_Pointers class in wp-admin/includes/template.php for example (its a final class so can't be
-     * extended) also see:
-     *
-     * @link   http://eamann.com/tech/wordpress-portland/
-     * @abstract
-     * @return void
-     */
-    abstract protected function _add_feature_pointers();
-
-
-
-    /**
-     * load_scripts_styles
-     * child classes put their wp_enqueue_script and wp_enqueue_style hooks in here for anything they need loaded for
-     * their pages/subpages.  Note this is for all pages/subpages of the system.  You can also load only specific
-     * scripts/styles per view by putting them in a dynamic function in this format
-     * (load_scripts_styles_{$this->_current_view}) which matches your page route (action request arg)
-     *
-     * @abstract
-     * @return void
-     */
-    abstract public function load_scripts_styles();
-
-
-
-    /**
-     * admin_init
-     * Anything that should be set/executed at 'admin_init' WP hook runtime should be put in here.  This will apply to
-     * all pages/views loaded by child class.
-     *
-     * @abstract
-     * @return void
-     */
-    abstract public function admin_init();
-
-
-
-    /**
-     * admin_notices
-     * Anything triggered by the 'admin_notices' WP hook should be put in here.  This particular method will apply to
-     * all pages/views loaded by child class.
-     *
-     * @abstract
-     * @return void
-     */
-    abstract public function admin_notices();
-
-
-
-    /**
-     * admin_footer_scripts
-     * Anything triggered by the 'admin_print_footer_scripts' WP hook should be put in here. This particular method
-     * will apply to all pages/views loaded by child class.
-     *
-     * @return void
-     */
-    abstract public function admin_footer_scripts();
-
-
-
-    /**
-     * admin_footer
-     * anything triggered by the 'admin_footer' WP action hook should be added to here. This particular method will
-     * apply to all pages/views loaded by child class.
-     *
-     * @return void
-     */
-    public function admin_footer()
-    {
-    }
-
-
-
-    /**
-     * _global_ajax_hooks
-     * all global add_action('wp_ajax_{name_of_hook}') hooks in here.
-     * Note: within the ajax callback methods.
-     *
-     * @abstract
-     * @return void
-     */
-    protected function _global_ajax_hooks()
-    {
-        //for lazy loading of metabox content
-        add_action('wp_ajax_espresso-ajax-content', array($this, 'ajax_metabox_content'), 10);
-    }
-
-
-
-    public function ajax_metabox_content()
-    {
-        $contentid = isset($this->_req_data['contentid']) ? $this->_req_data['contentid'] : '';
-        $url       = isset($this->_req_data['contenturl']) ? $this->_req_data['contenturl'] : '';
-        self::cached_rss_display($contentid, $url);
-        wp_die();
-    }
-
-
-
-    /**
-     * _page_setup
-     * Makes sure any things that need to be loaded early get handled.  We also escape early here if the page requested
-     * doesn't match the object.
-     *
-     * @final
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    final protected function _page_setup()
-    {
-        //requires?
-        //admin_init stuff - global - we're setting this REALLY early so if EE_Admin pages have to hook into other WP pages they can.  But keep in mind, not everything is available from the EE_Admin Page object at this point.
-        add_action('admin_init', array($this, 'admin_init_global'), 5);
-        //next verify if we need to load anything...
-        $this->_current_page = ! empty($_GET['page']) ? sanitize_key($_GET['page']) : '';
-        $this->page_folder   = strtolower(
-            str_replace(array('_Admin_Page', 'Extend_'), '', get_class($this))
-        );
-        global $ee_menu_slugs;
-        $ee_menu_slugs = (array)$ee_menu_slugs;
-        if (! defined('DOING_AJAX') && (! $this->_current_page || ! isset($ee_menu_slugs[$this->_current_page]))) {
-            return;
-        }
-        // becuz WP List tables have two duplicate select inputs for choosing bulk actions, we need to copy the action from the second to the first
-        if (isset($this->_req_data['action2']) && $this->_req_data['action'] === '-1') {
-            $this->_req_data['action'] = ! empty($this->_req_data['action2']) && $this->_req_data['action2'] !== '-1'
-                ? $this->_req_data['action2']
-                : $this->_req_data['action'];
-        }
-        // then set blank or -1 action values to 'default'
-        $this->_req_action = isset($this->_req_data['action'])
-                             && ! empty($this->_req_data['action'])
-                             && $this->_req_data['action'] !== '-1'
-            ? sanitize_key($this->_req_data['action'])
-            : 'default';
-        // if action is 'default' after the above BUT we have  'route' var set, then let's use the route as the action.
-        //  This covers cases where we're coming in from a list table that isn't on the default route.
-        $this->_req_action = $this->_req_action === 'default' && isset($this->_req_data['route'])
-            ? $this->_req_data['route'] : $this->_req_action;
-        //however if we are doing_ajax and we've got a 'route' set then that's what the req_action will be
-        $this->_req_action   = defined('DOING_AJAX') && isset($this->_req_data['route'])
-            ? $this->_req_data['route']
-            : $this->_req_action;
-        $this->_current_view = $this->_req_action;
-        $this->_req_nonce    = $this->_req_action . '_nonce';
-        $this->_define_page_props();
-        $this->_current_page_view_url = add_query_arg(
-            array('page' => $this->_current_page, 'action' => $this->_current_view),
-            $this->_admin_base_url
-        );
-        //default things
-        $this->_default_espresso_metaboxes = array(
-            '_espresso_news_post_box',
-            '_espresso_links_post_box',
-            '_espresso_ratings_request',
-            '_espresso_sponsors_post_box',
-        );
-        //set page configs
-        $this->_set_page_routes();
-        $this->_set_page_config();
-        //let's include any referrer data in our default_query_args for this route for "stickiness".
-        if (isset($this->_req_data['wp_referer'])) {
-            $this->_default_route_query_args['wp_referer'] = $this->_req_data['wp_referer'];
-        }
-        //for caffeinated and other extended functionality.
-        //  If there is a _extend_page_config method
-        // then let's run that to modify the all the various page configuration arrays
-        if (method_exists($this, '_extend_page_config')) {
-            $this->_extend_page_config();
-        }
-        //for CPT and other extended functionality.
-        // If there is an _extend_page_config_for_cpt
-        // then let's run that to modify all the various page configuration arrays.
-        if (method_exists($this, '_extend_page_config_for_cpt')) {
-            $this->_extend_page_config_for_cpt();
-        }
-        //filter routes and page_config so addons can add their stuff. Filtering done per class
-        $this->_page_routes = apply_filters(
-            'FHEE__' . get_class($this) . '__page_setup__page_routes',
-            $this->_page_routes,
-            $this
-        );
-        $this->_page_config = apply_filters(
-            'FHEE__' . get_class($this) . '__page_setup__page_config',
-            $this->_page_config,
-            $this
-        );
-        //if AHEE__EE_Admin_Page__route_admin_request_$this->_current_view method is present
-        // then we call it hooked into the AHEE__EE_Admin_Page__route_admin_request action
-        if (
-            method_exists($this, 'AHEE__EE_Admin_Page__route_admin_request_' . $this->_current_view)
-        ) {
-            add_action(
-                'AHEE__EE_Admin_Page__route_admin_request',
-                array($this, 'AHEE__EE_Admin_Page__route_admin_request_' . $this->_current_view),
-                10,
-                2
-            );
-        }
-        //next route only if routing enabled
-        if ($this->_routing && ! defined('DOING_AJAX')) {
-            $this->_verify_routes();
-            //next let's just check user_access and kill if no access
-            $this->check_user_access();
-            if ($this->_is_UI_request) {
-                //admin_init stuff - global, all views for this page class, specific view
-                add_action('admin_init', array($this, 'admin_init'), 10);
-                if (method_exists($this, 'admin_init_' . $this->_current_view)) {
-                    add_action('admin_init', array($this, 'admin_init_' . $this->_current_view), 15);
-                }
-            } else {
-                //hijack regular WP loading and route admin request immediately
-                @ini_set('memory_limit', apply_filters('admin_memory_limit', WP_MAX_MEMORY_LIMIT));
-                $this->route_admin_request();
-            }
-        }
-    }
-
-
-
-    /**
-     * Provides a way for related child admin pages to load stuff on the loaded admin page.
-     *
-     * @return void
-     * @throws ReflectionException
-     * @throws EE_Error
-     */
-    private function _do_other_page_hooks()
-    {
-        $registered_pages = apply_filters('FHEE_do_other_page_hooks_' . $this->page_slug, array());
-        foreach ($registered_pages as $page) {
-            //now let's setup the file name and class that should be present
-            $classname = str_replace('.class.php', '', $page);
-            //autoloaders should take care of loading file
-            if (! class_exists($classname)) {
-                $error_msg[] = sprintf(
-                    esc_html__(
-                        'Something went wrong with loading the %s admin hooks page.',
-                        'event_espresso'
-                    ),
-                    $page
-                );
-                $error_msg[] = $error_msg[0]
-                               . "\r\n"
-                               . sprintf(
-                                   esc_html__(
-                                       'There is no class in place for the %1$s admin hooks page.%2$sMake sure you have %3$s defined. If this is a non-EE-core admin page then you also must have an autoloader in place for your class',
-                                       'event_espresso'
-                                   ),
-                                   $page,
-                                   '<br />',
-                                   '<strong>' . $classname . '</strong>'
-                               );
-                throw new EE_Error(implode('||', $error_msg));
-            }
-            $a = new ReflectionClass($classname);
-            //notice we are passing the instance of this class to the hook object.
-            $hookobj[] = $a->newInstance($this);
-        }
-    }
-
-
-
-    public function load_page_dependencies()
-    {
-        try {
-            $this->_load_page_dependencies();
-        } catch (EE_Error $e) {
-            $e->get_error();
-        }
-    }
-
-
-
-    /**
-     * load_page_dependencies
-     * loads things specific to this page class when its loaded.  Really helps with efficiency.
-     *
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    protected function _load_page_dependencies()
-    {
-        //let's set the current_screen and screen options to override what WP set
-        $this->_current_screen = get_current_screen();
-        //load admin_notices - global, page class, and view specific
-        add_action('admin_notices', array($this, 'admin_notices_global'), 5);
-        add_action('admin_notices', array($this, 'admin_notices'), 10);
-        if (method_exists($this, 'admin_notices_' . $this->_current_view)) {
-            add_action('admin_notices', array($this, 'admin_notices_' . $this->_current_view), 15);
-        }
-        //load network admin_notices - global, page class, and view specific
-        add_action('network_admin_notices', array($this, 'network_admin_notices_global'), 5);
-        if (method_exists($this, 'network_admin_notices_' . $this->_current_view)) {
-            add_action('network_admin_notices', array($this, 'network_admin_notices_' . $this->_current_view));
-        }
-        //this will save any per_page screen options if they are present
-        $this->_set_per_page_screen_options();
-        //setup list table properties
-        $this->_set_list_table();
-        // child classes can "register" a metabox to be automatically handled via the _page_config array property.
-        // However in some cases the metaboxes will need to be added within a route handling callback.
-        $this->_add_registered_meta_boxes();
-        $this->_add_screen_columns();
-        //add screen options - global, page child class, and view specific
-        $this->_add_global_screen_options();
-        $this->_add_screen_options();
-        $add_screen_options  = "_add_screen_options_{$this->_current_view}";
-        if (method_exists($this, $add_screen_options )) {
-            $this->{$add_screen_options}();
-        }
-        //add help tab(s) and tours- set via page_config and qtips.
-        $this->_add_help_tour();
-        $this->_add_help_tabs();
-        $this->_add_qtips();
-        //add feature_pointers - global, page child class, and view specific
-        $this->_add_feature_pointers();
-        $this->_add_global_feature_pointers();
-        $add_feature_pointer = "_add_feature_pointer_{$this->_current_view}";
-        if (method_exists($this, $add_feature_pointer )) {
-            $this->{$add_feature_pointer}();
-        }
-        //enqueue scripts/styles - global, page class, and view specific
-        add_action('admin_enqueue_scripts', array($this, 'load_global_scripts_styles'), 5);
-        add_action('admin_enqueue_scripts', array($this, 'load_scripts_styles'), 10);
-        if (method_exists($this, "load_scripts_styles_{$this->_current_view}")) {
-            add_action('admin_enqueue_scripts', array($this, "load_scripts_styles_{$this->_current_view}"), 15);
-        }
-        add_action('admin_enqueue_scripts', array($this, 'admin_footer_scripts_eei18n_js_strings'), 100);
-        // admin_print_footer_scripts - global, page child class, and view specific.
-        // NOTE, despite the name, whenever possible, scripts should NOT be loaded using this.
-        // In most cases that's doing_it_wrong().  But adding hidden container elements etc.
-        // is a good use case. Notice the late priority we're giving these
-        add_action('admin_print_footer_scripts', array($this, 'admin_footer_scripts_global'), 99);
-        add_action('admin_print_footer_scripts', array($this, 'admin_footer_scripts'), 100);
-        if (method_exists($this, "admin_footer_scripts_{$this->_current_view}")) {
-            add_action('admin_print_footer_scripts', array($this, "admin_footer_scripts_{$this->_current_view}"), 101);
-        }
-        //admin footer scripts
-        add_action('admin_footer', array($this, 'admin_footer_global'), 99);
-        add_action('admin_footer', array($this, 'admin_footer'), 100);
-        if (method_exists($this, "admin_footer_{$this->_current_view}")) {
-            add_action('admin_footer', array($this, "admin_footer_{$this->_current_view}"), 101);
-        }
-        do_action('FHEE__EE_Admin_Page___load_page_dependencies__after_load', $this->page_slug);
-        //targeted hook
-        do_action(
-            "FHEE__EE_Admin_Page___load_page_dependencies__after_load__{$this->page_slug}__{$this->_req_action}"
-
-        );
-    }
-
-
-
-    /**
-     * _set_defaults
-     * This sets some global defaults for class properties.
-     */
-    private function _set_defaults()
-    {
-        $this->_current_screen = $this->_admin_page_title = $this->_req_action = $this->_req_nonce = null;
-        $this->_event = $this->_template_path = $this->_column_template_path = null;
-        $this->_nav_tabs = $this->_views = $this->_page_routes = array();
-        $this->_page_config = $this->_default_route_query_args = array();
-        $this->_default_nav_tab_name = 'overview';
-        //init template args
-        $this->_template_args = array(
-            'admin_page_header'  => '',
-            'admin_page_content' => '',
-            'post_body_content'  => '',
-            'before_list_table'  => '',
-            'after_list_table'   => '',
-        );
-    }
-
-
-
-    /**
-     * route_admin_request
-     *
-     * @see    _route_admin_request()
-     * @return exception|void error
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public function route_admin_request()
-    {
-        try {
-            $this->_route_admin_request();
-        } catch (EE_Error $e) {
-            $e->get_error();
-        }
-    }
-
-
-
-    public function set_wp_page_slug($wp_page_slug)
-    {
-        $this->_wp_page_slug = $wp_page_slug;
-        //if in network admin then we need to append "-network" to the page slug. Why? Because that's how WP rolls...
-        if (is_network_admin()) {
-            $this->_wp_page_slug .= '-network';
-        }
-    }
-
-
-
-    /**
-     * _verify_routes
-     * All this method does is verify the incoming request and make sure that routes exist for it.  We do this early so
-     * we know if we need to drop out.
-     *
-     * @return bool
-     * @throws EE_Error
-     */
-    protected function _verify_routes()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        if (! $this->_current_page && ! defined('DOING_AJAX')) {
-            return false;
-        }
-        $this->_route = false;
-        // check that the page_routes array is not empty
-        if (empty($this->_page_routes)) {
-            // user error msg
-            $error_msg = sprintf(
-                esc_html__('No page routes have been set for the %s admin page.', 'event_espresso'),
-                $this->_admin_page_title
-            );
-            // developer error msg
-            $error_msg .= '||' . $error_msg . esc_html__(
-                ' Make sure the "set_page_routes()" method exists, and is setting the "_page_routes" array properly.',
-                'event_espresso'
-            );
-            throw new EE_Error($error_msg);
-        }
-        // and that the requested page route exists
-        if (array_key_exists($this->_req_action, $this->_page_routes)) {
-            $this->_route        = $this->_page_routes[$this->_req_action];
-            $this->_route_config = isset($this->_page_config[$this->_req_action])
-                ? $this->_page_config[$this->_req_action] : array();
-        } else {
-            // user error msg
-            $error_msg = sprintf(
-                esc_html__(
-                        'The requested page route does not exist for the %s admin page.',
-                        'event_espresso'
-                ),
-                $this->_admin_page_title
-            );
-            // developer error msg
-            $error_msg .= '||' . $error_msg . sprintf(
-                    esc_html__(
-                        ' Create a key in the "_page_routes" array named "%s" and set its value to the appropriate method.',
-                        'event_espresso'
-                    ),
-                    $this->_req_action
-                );
-            throw new EE_Error($error_msg);
-        }
-        // and that a default route exists
-        if (! array_key_exists('default', $this->_page_routes)) {
-            // user error msg
-            $error_msg = sprintf(
-                esc_html__(
-                        'A default page route has not been set for the % admin page.',
-                        'event_espresso'
-                ),
-                $this->_admin_page_title
-            );
-            // developer error msg
-            $error_msg .= '||' . $error_msg . esc_html__(
-                ' Create a key in the "_page_routes" array named "default" and set its value to your default page method.',
-                'event_espresso'
-            );
-            throw new EE_Error($error_msg);
-        }
-        //first lets' catch if the UI request has EVER been set.
-        if ($this->_is_UI_request === null) {
-            //lets set if this is a UI request or not.
-            $this->_is_UI_request = ! isset($this->_req_data['noheader']) || $this->_req_data['noheader'] !== true;
-            //wait a minute... we might have a noheader in the route array
-            $this->_is_UI_request = is_array($this->_route)
-                                    && isset($this->_route['noheader'])
-                                    && $this->_route['noheader'] ? false : $this->_is_UI_request;
-        }
-        $this->_set_current_labels();
-        return true;
-    }
-
-
-
-    /**
-     * this method simply verifies a given route and makes sure its an actual route available for the loaded page
-     *
-     * @param  string $route the route name we're verifying
-     * @return mixed (bool|Exception)      we'll throw an exception if this isn't a valid route.
-     * @throws EE_Error
-     */
-    protected function _verify_route($route)
-    {
-        if (array_key_exists($this->_req_action, $this->_page_routes)) {
-            return true;
-        }
-        // user error msg
-        $error_msg = sprintf(
-            esc_html__('The given page route does not exist for the %s admin page.', 'event_espresso'),
-            $this->_admin_page_title
-        );
-        // developer error msg
-        $error_msg .= '||' . $error_msg . sprintf(
-                esc_html__(
-                    ' Check the route you are using in your method (%s) and make sure it matches a route set in your "_page_routes" array property',
-                    'event_espresso'
-                ),
-                $route
-            );
-        throw new EE_Error($error_msg);
-    }
-
-
-
-    /**
-     * perform nonce verification
-     * This method has be encapsulated here so that any ajax requests that bypass normal routes can verify their nonces
-     * using this method (and save retyping!)
-     *
-     * @param  string $nonce     The nonce sent
-     * @param  string $nonce_ref The nonce reference string (name0)
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _verify_nonce($nonce, $nonce_ref)
-    {
-        // verify nonce against expected value
-        if (! wp_verify_nonce($nonce, $nonce_ref)) {
-            // these are not the droids you are looking for !!!
-            $msg = sprintf(
-                esc_html__('%sNonce Fail.%s', 'event_espresso'),
-                '<a href="http://www.youtube.com/watch?v=56_S0WeTkzs">',
-                '</a>'
-            );
-            if (WP_DEBUG) {
-                $msg .= "\n  " . sprintf(
-                        esc_html__(
-                            'In order to dynamically generate nonces for your actions, use the %s::add_query_args_and_nonce() method. May the Nonce be with you!',
-                            'event_espresso'
-                        ),
-                        __CLASS__
-                    );
-            }
-            if (! defined('DOING_AJAX')) {
-                wp_die($msg);
-            } else {
-                EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-                $this->_return_json();
-            }
-        }
-    }
-
-
-
-    /**
-     * _route_admin_request()
-     * Meat and potatoes of the class.  Basically, this dude checks out what's being requested and sees if theres are
-     * some doodads to work the magic and handle the flingjangy. Translation:  Checks if the requested action is listed
-     * in the page routes and then will try to load the corresponding method.
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    protected function _route_admin_request()
-    {
-        if (! $this->_is_UI_request) {
-            $this->_verify_routes();
-        }
-        $nonce_check = isset($this->_route_config['require_nonce'])
-            ? $this->_route_config['require_nonce']
-            : true;
-        if ($this->_req_action !== 'default' && $nonce_check) {
-            // set nonce from post data
-            $nonce = isset($this->_req_data[$this->_req_nonce])
-                ? sanitize_text_field($this->_req_data[$this->_req_nonce])
-                : '';
-            $this->_verify_nonce($nonce, $this->_req_nonce);
-        }
-        //set the nav_tabs array but ONLY if this is  UI_request
-        if ($this->_is_UI_request) {
-            $this->_set_nav_tabs();
-        }
-        // grab callback function
-        $func = is_array($this->_route) ? $this->_route['func'] : $this->_route;
-        // check if callback has args
-        $args      = is_array($this->_route) && isset($this->_route['args']) ? $this->_route['args'] : array();
-        $error_msg = '';
-        // action right before calling route
-        // (hook is something like 'AHEE__Registrations_Admin_Page__route_admin_request')
-        if (! did_action('AHEE__EE_Admin_Page__route_admin_request')) {
-            do_action('AHEE__EE_Admin_Page__route_admin_request', $this->_current_view, $this);
-        }
-        // right before calling the route, let's remove _wp_http_referer from the
-        // $_SERVER[REQUEST_URI] global (its now in _req_data for route processing).
-        $_SERVER['REQUEST_URI'] = remove_query_arg(
-                '_wp_http_referer',
-                wp_unslash($_SERVER['REQUEST_URI'])
-        );
-        if (! empty($func)) {
-            if (is_array($func)) {
-                list($class, $method) = $func;
-            } elseif (strpos($func, '::') !== false) {
-                list($class, $method) = explode('::', $func);
-            } else {
-                $class  = $this;
-                $method = $func;
-            }
-            if (! (is_object($class) && $class === $this)) {
-                // send along this admin page object for access by addons.
-                $args['admin_page_object'] = $this;
-            }
-            if (
-                //is it a method on a class that doesn't work?
-                (
-                    (
-                        method_exists($class, $method)
-                        && call_user_func_array(array($class, $method), $args) === false
-                    )
-                    && (
-                        //is it a standalone function that doesn't work?
-                        function_exists($method)
-                        && call_user_func_array(
-                            $func,
-                            array_merge(array('admin_page_object' => $this), $args)
-                           ) === false
-                    )
-                )
-                || (
-                    //is it neither a class method NOR a standalone function?
-                    ! method_exists($class, $method)
-                    && ! function_exists($method)
-                )
-            ) {
-                // user error msg
-                $error_msg = esc_html__(
-                    'An error occurred. The  requested page route could not be found.',
-                    'event_espresso'
-                );
-                // developer error msg
-                $error_msg .= '||';
-                $error_msg .= sprintf(
-                    esc_html__(
-                        'Page route "%s" could not be called. Check that the spelling for method names and actions in the "_page_routes" array are all correct.',
-                        'event_espresso'
-                    ),
-                    $method
-                );
-            }
-            if (! empty($error_msg)) {
-                throw new EE_Error($error_msg);
-            }
-        }
-        // if we've routed and this route has a no headers route AND a sent_headers_route,
-        // then we need to reset the routing properties to the new route.
-        //now if UI request is FALSE and noheader is true AND we have a headers_sent_route in the route array then let's set UI_request to true because the no header route has a second func after headers have been sent.
-        if ($this->_is_UI_request === false
-            && is_array($this->_route)
-            && ! empty($this->_route['headers_sent_route'])
-        ) {
-            $this->_reset_routing_properties($this->_route['headers_sent_route']);
-        }
-    }
-
-
-
-    /**
-     * This method just allows the resetting of page properties in the case where a no headers
-     * route redirects to a headers route in its route config.
-     *
-     * @since   4.3.0
-     * @param  string $new_route New (non header) route to redirect to.
-     * @return   void
-     * @throws ReflectionException
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    protected function _reset_routing_properties($new_route)
-    {
-        $this->_is_UI_request = true;
-        //now we set the current route to whatever the headers_sent_route is set at
-        $this->_req_data['action'] = $new_route;
-        //rerun page setup
-        $this->_page_setup();
-    }
-
-
-
-    /**
-     * _add_query_arg
-     * adds nonce to array of arguments then calls WP add_query_arg function
-     *(internally just uses EEH_URL's function with the same name)
-     *
-     * @param array  $args
-     * @param string $url
-     * @param bool   $sticky                  if true, then the existing Request params will be appended to the
-     *                                        generated url in an associative array indexed by the key 'wp_referer';
-     *                                        Example usage: If the current page is:
-     *                                        http://mydomain.com/wp-admin/admin.php?page=espresso_registrations
-     *                                        &action=default&event_id=20&month_range=March%202015
-     *                                        &_wpnonce=5467821
-     *                                        and you call:
-     *                                        EE_Admin_Page::add_query_args_and_nonce(
-     *                                        array(
-     *                                        'action' => 'resend_something',
-     *                                        'page=>espresso_registrations'
-     *                                        ),
-     *                                        $some_url,
-     *                                        true
-     *                                        );
-     *                                        It will produce a url in this structure:
-     *                                        http://{$some_url}/?page=espresso_registrations&action=resend_something
-     *                                        &wp_referer[action]=default&wp_referer[event_id]=20&wpreferer[
-     *                                        month_range]=March%202015
-     * @param   bool $exclude_nonce           If true, the the nonce will be excluded from the generated nonce.
-     * @return string
-     */
-    public static function add_query_args_and_nonce(
-        $args = array(),
-        $url = false,
-        $sticky = false,
-        $exclude_nonce = false
-    ) {
-        //if there is a _wp_http_referer include the values from the request but only if sticky = true
-        if ($sticky) {
-            $request = $_REQUEST;
-            unset($request['_wp_http_referer']);
-            unset($request['wp_referer']);
-            foreach ($request as $key => $value) {
-                //do not add nonces
-                if (strpos($key, 'nonce') !== false) {
-                    continue;
-                }
-                $args['wp_referer[' . $key . ']'] = $value;
-            }
-        }
-        return EEH_URL::add_query_args_and_nonce($args, $url, $exclude_nonce);
-    }
-
-
-
-    /**
-     * This returns a generated link that will load the related help tab.
-     *
-     * @param  string $help_tab_id the id for the connected help tab
-     * @param  string $icon_style  (optional) include css class for the style you want to use for the help icon.
-     * @param  string $help_text   (optional) send help text you want to use for the link if default not to be used
-     * @uses EEH_Template::get_help_tab_link()
-     * @return string              generated link
-     */
-    protected function _get_help_tab_link($help_tab_id, $icon_style = '', $help_text = '')
-    {
-        return EEH_Template::get_help_tab_link(
-            $help_tab_id,
-            $this->page_slug,
-            $this->_req_action,
-            $icon_style,
-            $help_text
-        );
-    }
-
-
-
-    /**
-     * _add_help_tabs
-     * Note child classes define their help tabs within the page_config array.
-     *
-     * @link   http://codex.wordpress.org/Function_Reference/add_help_tab
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    protected function _add_help_tabs()
-    {
-        $tour_buttons = '';
-        if (isset($this->_page_config[$this->_req_action])) {
-            $config = $this->_page_config[$this->_req_action];
-            //is there a help tour for the current route?  if there is let's setup the tour buttons
-            if (isset($this->_help_tour[$this->_req_action])) {
-                $tb           = array();
-                $tour_buttons = '<div class="ee-abs-container"><div class="ee-help-tour-restart-buttons">';
-                foreach ($this->_help_tour['tours'] as $tour) {
-                    //if this is the end tour then we don't need to setup a button
-                    if ($tour instanceof EE_Help_Tour_final_stop || ! $tour instanceof EE_Help_Tour) {
-                        continue;
-                    }
-                    $tb[] = '<button id="trigger-tour-'
-                            . $tour->get_slug()
-                            . '" class="button-primary trigger-ee-help-tour">'
-                            . $tour->get_label()
-                            . '</button>';
-                }
-                $tour_buttons .= implode('<br />', $tb);
-                $tour_buttons .= '</div></div>';
-            }
-            // let's see if there is a help_sidebar set for the current route and we'll set that up for usage as well.
-            if (is_array($config) && isset($config['help_sidebar'])) {
-                //check that the callback given is valid
-                if (! method_exists($this, $config['help_sidebar'])) {
-                    throw new EE_Error(
-                        sprintf(
-                            esc_html__(
-                                'The _page_config array has a callback set for the "help_sidebar" option.  However the callback given (%s) is not a valid callback.  Doublecheck the spelling and make sure this method exists for the class %s',
-                                'event_espresso'
-                            ),
-                            $config['help_sidebar'],
-                            get_class($this)
-                        )
-                    );
-                }
-                $content = apply_filters(
-                    'FHEE__' . get_class($this) . '__add_help_tabs__help_sidebar',
-                    $this->{$config['help_sidebar']}()
-                );
-                $content .= $tour_buttons; //add help tour buttons.
-                //do we have any help tours setup?  Cause if we do we want to add the buttons
-                $this->_current_screen->set_help_sidebar($content);
-            }
-            //if we DON'T have config help sidebar and there ARE tour buttons then we'll just add the tour buttons to the sidebar.
-            if (! isset($config['help_sidebar']) && ! empty($tour_buttons)) {
-                $this->_current_screen->set_help_sidebar($tour_buttons);
-            }
-            //handle if no help_tabs are set so the sidebar will still show for the help tour buttons
-            if (! isset($config['help_tabs']) && ! empty($tour_buttons)) {
-                $_ht['id']      = $this->page_slug;
-                $_ht['title']   = esc_html__('Help Tours', 'event_espresso');
-                $_ht['content'] = '<p>' . esc_html__(
-                        'The buttons to the right allow you to start/restart any help tours available for this page',
-                        'event_espresso'
-                    ) . '</p>';
-                $this->_current_screen->add_help_tab($_ht);
-            }
-            if (! isset($config['help_tabs'])) {
-                return;
-            } //no help tabs for this route
-            foreach ((array)$config['help_tabs'] as $tab_id => $cfg) {
-                //we're here so there ARE help tabs!
-                //make sure we've got what we need
-                if (! isset($cfg['title'])) {
-                    throw new EE_Error(
-                        esc_html__(
-                            'The _page_config array is not set up properly for help tabs.  It is missing a title',
-                            'event_espresso'
-                        )
-                    );
-                }
-                if (! isset($cfg['filename']) && ! isset($cfg['callback']) && ! isset($cfg['content'])) {
-                    throw new EE_Error(
-                        esc_html__(
-                            'The _page_config array is not setup properly for help tabs. It is missing a either a filename reference, or a callback reference or a content reference so there is no way to know the content for the help tab',
-                            'event_espresso'
-                        )
-                    );
-                }
-                //first priority goes to content.
-                if (! empty($cfg['content'])) {
-                    $content = ! empty($cfg['content']) ? $cfg['content'] : null;
-                    //second priority goes to filename
-                } elseif (! empty($cfg['filename'])) {
-                    $file_path = $this->_get_dir() . '/help_tabs/' . $cfg['filename'] . '.help_tab.php';
-                    //it's possible that the file is located on decaf route (and above sets up for caf route, if this is the case then lets check decaf route too)
-                    $file_path = ! is_readable($file_path) ? EE_ADMIN_PAGES
-                                                             . basename($this->_get_dir())
-                                                             . '/help_tabs/'
-                                                             . $cfg['filename']
-                                                             . '.help_tab.php' : $file_path;
-                    //if file is STILL not readable then let's do a EE_Error so its more graceful than a fatal error.
-                    if (! isset($cfg['callback']) && ! is_readable($file_path)) {
-                        EE_Error::add_error(
-                            sprintf(
-                                esc_html__(
-                                    'The filename given for the help tab %s is not a valid file and there is no other configuration for the tab content.  Please check that the string you set for the help tab on this route (%s) is the correct spelling.  The file should be in %s',
-                                    'event_espresso'
-                                ),
-                                $tab_id,
-                                key($config),
-                                $file_path
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                        return;
-                    }
-                    $template_args['admin_page_obj'] = $this;
-                    $content = EEH_Template::display_template(
-                        $file_path,
-                        $template_args,
-                        true
-                    );
-                } else {
-                    $content = '';
-                }
-                //check if callback is valid
-                if (
-                    empty($content) && (
-                        ! isset($cfg['callback']) || ! method_exists($this, $cfg['callback'])
-                    )
-                ) {
-                    EE_Error::add_error(
-                        sprintf(
-                            esc_html__(
-                                'The callback given for a %s help tab on this page does not content OR a corresponding method for generating the content.  Check the spelling or make sure the method is present.',
-                                'event_espresso'
-                            ),
-                            $cfg['title']
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return;
-                }
-                //setup config array for help tab method
-                $id  = $this->page_slug . '-' . $this->_req_action . '-' . $tab_id;
-                $_ht = array(
-                    'id'       => $id,
-                    'title'    => $cfg['title'],
-                    'callback' => isset($cfg['callback']) && empty($content) ? array($this, $cfg['callback']) : null,
-                    'content'  => $content,
-                );
-                $this->_current_screen->add_help_tab($_ht);
-            }
-        }
-    }
-
-
-
-    /**
-     * This basically checks loaded $_page_config property to see if there are any help_tours defined.  "help_tours" is
-     * an array with properties for setting up usage of the joyride plugin
-     *
-     * @link   http://zurb.com/playground/jquery-joyride-feature-tour-plugin
-     * @see    instructions regarding the format and construction of the "help_tour" array element is found in the
-     *         _set_page_config() comments
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _add_help_tour()
-    {
-        $tours            = array();
-        $this->_help_tour = array();
-        //exit early if help tours are turned off globally
-        if ((defined('EE_DISABLE_HELP_TOURS') && EE_DISABLE_HELP_TOURS)
-            || ! EE_Registry::instance()->CFG->admin->help_tour_activation
-        ) {
-            return;
-        }
-        //loop through _page_config to find any help_tour defined
-        foreach ($this->_page_config as $route => $config) {
-            //we're only going to set things up for this route
-            if ($route !== $this->_req_action) {
-                continue;
-            }
-            if (isset($config['help_tour'])) {
-                foreach ($config['help_tour'] as $tour) {
-                    $file_path = $this->_get_dir() . '/help_tours/' . $tour . '.class.php';
-                    // let's see if we can get that file...
-                    // if not its possible this is a decaf route not set in caffeinated
-                    // so lets try and get the caffeinated equivalent
-                    $file_path = ! is_readable($file_path) ? EE_ADMIN_PAGES
-                                                             . basename($this->_get_dir())
-                                                             . '/help_tours/'
-                                                             . $tour
-                                                             . '.class.php' : $file_path;
-                    //if file is STILL not readable then let's do a EE_Error so its more graceful than a fatal error.
-                    if (! is_readable($file_path)) {
-                        EE_Error::add_error(
-                            sprintf(
-                                esc_html__(
-                                    'The file path given for the help tour (%s) is not a valid path.  Please check that the string you set for the help tour on this route (%s) is the correct spelling',
-                                    'event_espresso'
-                                ),
-                                $file_path,
-                                $tour
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                        return;
-                    }
-                    require_once $file_path;
-                    if (! class_exists($tour)) {
-                        $error_msg[] = sprintf(
-                            esc_html__('Something went wrong with loading the %s Help Tour Class.', 'event_espresso'),
-                            $tour
-                        );
-                        $error_msg[] = $error_msg[0] . "\r\n" . sprintf(
-                                esc_html__(
-                                    'There is no class in place for the %s help tour.%s Make sure you have <strong>%s</strong> defined in the "help_tour" array for the %s route of the % admin page.',
-                                    'event_espresso'
-                                ),
-                                $tour,
-                                '<br />',
-                                $tour,
-                                $this->_req_action,
-                                get_class($this)
-                            );
-                        throw new EE_Error(implode('||', $error_msg));
-                    }
-                    $tour_obj                   = new $tour($this->_is_caf);
-                    $tours[]                    = $tour_obj;
-                    $this->_help_tour[$route][] = EEH_Template::help_tour_stops_generator($tour_obj);
-                }
-                //let's inject the end tour stop element common to all pages... this will only get seen once per machine.
-                $end_stop_tour              = new EE_Help_Tour_final_stop($this->_is_caf);
-                $tours[]                    = $end_stop_tour;
-                $this->_help_tour[$route][] = EEH_Template::help_tour_stops_generator($end_stop_tour);
-            }
-        }
-        if (! empty($tours)) {
-            $this->_help_tour['tours'] = $tours;
-        }
-        // that's it!  Now that the $_help_tours property is set (or not)
-        // the scripts and html should be taken care of automatically.
-    }
-
-
-
-    /**
-     * This simply sets up any qtips that have been defined in the page config
-     *
-     * @return void
-     */
-    protected function _add_qtips()
-    {
-        if (isset($this->_route_config['qtips'])) {
-            $qtips = (array)$this->_route_config['qtips'];
-            //load qtip loader
-            $path = array(
-                $this->_get_dir() . '/qtips/',
-                EE_ADMIN_PAGES . basename($this->_get_dir()) . '/qtips/',
-            );
-            EEH_Qtip_Loader::instance()->register($qtips, $path);
-        }
-    }
-
-
-
-    /**
-     * _set_nav_tabs
-     * This sets up the nav tabs from the page_routes array.  This method can be overwritten by child classes if you
-     * wish to add additional tabs or modify accordingly.
-     *
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    protected function _set_nav_tabs()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $i = 0;
-        foreach ($this->_page_config as $slug => $config) {
-            if (
-                ! is_array($config)
-                || (
-                    is_array($config)
-                    && (
-                        (isset($config['nav']) && ! $config['nav'])
-                        || ! isset($config['nav'])
-                    )
-                )
-            ) {
-                continue;
-            }
-            //no nav tab for this config
-            //check for persistent flag
-            if ($slug !== $this->_req_action && isset($config['nav']['persistent']) && ! $config['nav']['persistent']) {
-                // nav tab is only to appear when route requested.
-                continue;
-            }
-            if (! $this->check_user_access($slug, true)) {
-                // no nav tab because current user does not have access.
-                continue;
-            }
-            $css_class              = isset($config['css_class']) ? $config['css_class'] . ' ' : '';
-            $this->_nav_tabs[$slug] = array(
-                'url'       => isset($config['nav']['url'])
-                    ? $config['nav']['url']
-                    : self::add_query_args_and_nonce(
-                        array('action' => $slug),
-                        $this->_admin_base_url
-                    ),
-                'link_text' => isset($config['nav']['label'])
-                    ? $config['nav']['label']
-                    : ucwords(
-                        str_replace('_', ' ', $slug)
-                    ),
-                'css_class' => $this->_req_action === $slug ? $css_class . 'nav-tab-active' : $css_class,
-                'order'     => isset($config['nav']['order']) ? $config['nav']['order'] : $i,
-            );
-            $i++;
-        }
-        //if $this->_nav_tabs is empty then lets set the default
-        if (empty($this->_nav_tabs)) {
-            $this->_nav_tabs[$this->_default_nav_tab_name] = array(
-                'url'       => $this->_admin_base_url,
-                'link_text' => ucwords(str_replace('_', ' ', $this->_default_nav_tab_name)),
-                'css_class' => 'nav-tab-active',
-                'order'     => 10,
-            );
-        }
-        //now let's sort the tabs according to order
-        usort($this->_nav_tabs, array($this, '_sort_nav_tabs'));
-    }
-
-
-
-    /**
-     * _set_current_labels
-     * This method modifies the _labels property with any optional specific labels indicated in the _page_routes
-     * property array
-     *
-     * @return void
-     */
-    private function _set_current_labels()
-    {
-        if (is_array($this->_route_config) && isset($this->_route_config['labels'])) {
-            foreach ($this->_route_config['labels'] as $label => $text) {
-                if (is_array($text)) {
-                    foreach ($text as $sublabel => $subtext) {
-                        $this->_labels[$label][$sublabel] = $subtext;
-                    }
-                } else {
-                    $this->_labels[$label] = $text;
-                }
-            }
-        }
-    }
-
-
-
-    /**
-     *        verifies user access for this admin page
-     *
-     * @param string $route_to_check if present then the capability for the route matching this string is checked.
-     * @param bool   $verify_only    Default is FALSE which means if user check fails then wp_die().  Otherwise just
-     *                               return false if verify fail.
-     * @return bool
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function check_user_access($route_to_check = '', $verify_only = false)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $route_to_check = empty($route_to_check) ? $this->_req_action : $route_to_check;
-        $capability     = ! empty($route_to_check) && isset($this->_page_routes[$route_to_check])
-                          && is_array(
-                              $this->_page_routes[$route_to_check]
-                          )
-                          && ! empty($this->_page_routes[$route_to_check]['capability'])
-            ? $this->_page_routes[$route_to_check]['capability'] : null;
-        if (empty($capability) && empty($route_to_check)) {
-            $capability = is_array($this->_route) && empty($this->_route['capability']) ? 'manage_options'
-                : $this->_route['capability'];
-        } else {
-            $capability = empty($capability) ? 'manage_options' : $capability;
-        }
-        $id = is_array($this->_route) && ! empty($this->_route['obj_id']) ? $this->_route['obj_id'] : 0;
-        if (
-            ! defined('DOING_AJAX')
-            && (
-                ! function_exists('is_admin')
-                || ! EE_Registry::instance()->CAP->current_user_can(
-                    $capability,
-                    $this->page_slug
-                    . '_'
-                    . $route_to_check,
-                    $id
-                )
-            )
-        ) {
-            if ($verify_only) {
-                return false;
-            }
-            if (is_user_logged_in()) {
-                wp_die(__('You do not have access to this route.', 'event_espresso'));
-            } else {
-                return false;
-            }
-        }
-        return true;
-    }
-
-
-
-    /**
-     * admin_init_global
-     * This runs all the code that we want executed within the WP admin_init hook.
-     * This method executes for ALL EE Admin pages.
-     *
-     * @return void
-     */
-    public function admin_init_global()
-    {
-    }
-
-
-
-    /**
-     * wp_loaded_global
-     * This runs all the code that we want executed within the WP wp_loaded hook.  This method is optional for an
-     * EE_Admin page and will execute on every EE Admin Page load
-     *
-     * @return void
-     */
-    public function wp_loaded()
-    {
-    }
-
-
-
-    /**
-     * admin_notices
-     * Anything triggered by the 'admin_notices' WP hook should be put in here.  This particular method will apply on
-     * ALL EE_Admin pages.
-     *
-     * @return void
-     */
-    public function admin_notices_global()
-    {
-        $this->_display_no_javascript_warning();
-        $this->_display_espresso_notices();
-    }
-
-
-
-    public function network_admin_notices_global()
-    {
-        $this->_display_no_javascript_warning();
-        $this->_display_espresso_notices();
-    }
-
-
-
-    /**
-     * admin_footer_scripts_global
-     * Anything triggered by the 'admin_print_footer_scripts' WP hook should be put in here. This particular method
-     * will apply on ALL EE_Admin pages.
-     *
-     * @return void
-     */
-    public function admin_footer_scripts_global()
-    {
-        $this->_add_admin_page_ajax_loading_img();
-        $this->_add_admin_page_overlay();
-        //if metaboxes are present we need to add the nonce field
-        if (
-             isset($this->_route_config['metaboxes'])
-             || isset($this->_route_config['list_table'])
-             || (isset($this->_route_config['has_metaboxes']) && $this->_route_config['has_metaboxes'])
-        ) {
-            wp_nonce_field('closedpostboxes', 'closedpostboxesnonce', false);
-            wp_nonce_field('meta-box-order', 'meta-box-order-nonce', false);
-        }
-    }
-
-
-
-    /**
-     * admin_footer_global
-     * Anything triggered by the wp 'admin_footer' wp hook should be put in here. This particular method will apply on
-     * ALL EE_Admin Pages.
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function admin_footer_global()
-    {
-        //dialog container for dialog helper
-        $d_cont = '<div class="ee-admin-dialog-container auto-hide hidden">' . "\n";
-        $d_cont .= '<div class="ee-notices"></div>';
-        $d_cont .= '<div class="ee-admin-dialog-container-inner-content"></div>';
-        $d_cont .= '</div>';
-        echo $d_cont;
-        //help tour stuff?
-        if (isset($this->_help_tour[$this->_req_action])) {
-            echo implode('<br />', $this->_help_tour[$this->_req_action]);
-        }
-        //current set timezone for timezone js
-        echo '<span id="current_timezone" class="hidden">' . EEH_DTT_Helper::get_timezone() . '</span>';
-    }
-
-
-
-    /**
-     * This function sees if there is a method for help popup content existing for the given route.  If there is then
-     * we'll use the retrieved array to output the content using the template. For child classes: If you want to have
-     * help popups then in your templates or your content you set "triggers" for the content using the
-     * "_set_help_trigger('help_trigger_id')" where "help_trigger_id" is what you will use later in your custom method
-     * for the help popup content on that page. Then in your Child_Admin_Page class you need to define a help popup
-     * method for the content in the format "_help_popup_content_{route_name}()"  So if you are setting help content
-     * for the
-     * 'edit_event' route you should have a method named "_help_popup_content_edit_route". In your defined
-     * "help_popup_content_..." method.  You must prepare and return an array in the following format array(
-     *    'help_trigger_id' => array(
-     *        'title' => esc_html__('localized title for popup', 'event_espresso'),
-     *        'content' => esc_html__('localized content for popup', 'event_espresso')
-     *    )
-     * );
-     * Then the EE_Admin_Parent will take care of making sure that is setup properly on the correct route.
-     *
-     * @param array $help_array
-     * @param bool  $display
-     * @return string content
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    protected function _set_help_popup_content($help_array = array(), $display = false)
-    {
-        $content       = '';
-        $help_array    = empty($help_array) ? $this->_get_help_content() : $help_array;
-        //loop through the array and setup content
-        foreach ($help_array as $trigger => $help) {
-            //make sure the array is setup properly
-            if (! isset($help['title']) || ! isset($help['content'])) {
-                throw new EE_Error(
-                    esc_html__(
-                        'Does not look like the popup content array has been setup correctly.  Might want to double check that.  Read the comments for the _get_help_popup_content method found in "EE_Admin_Page" class',
-                        'event_espresso'
-                    )
-                );
-            }
-            //we're good so let'd setup the template vars and then assign parsed template content to our content.
-            $template_args = array(
-                'help_popup_id'      => $trigger,
-                'help_popup_title'   => $help['title'],
-                'help_popup_content' => $help['content'],
-            );
-            $content       .= EEH_Template::display_template(
-                EE_ADMIN_TEMPLATE . 'admin_help_popup.template.php',
-                $template_args,
-                true
-            );
-        }
-        if ($display) {
-            echo $content;
-            return '';
-        }
-        return $content;
-    }
-
-
-
-    /**
-     * All this does is retrieve the help content array if set by the EE_Admin_Page child
-     *
-     * @return array properly formatted array for help popup content
-     * @throws EE_Error
-     */
-    private function _get_help_content()
-    {
-        //what is the method we're looking for?
-        $method_name = '_help_popup_content_' . $this->_req_action;
-        //if method doesn't exist let's get out.
-        if (! method_exists($this, $method_name)) {
-            return array();
-        }
-        //k we're good to go let's retrieve the help array
-        $help_array = call_user_func(array($this, $method_name));
-        //make sure we've got an array!
-        if (! is_array($help_array)) {
-            throw new EE_Error(
-                esc_html__(
-                    'Something went wrong with help popup content generation. Expecting an array and well, this ain\'t no array bub.',
-                    'event_espresso'
-                )
-            );
-        }
-        return $help_array;
-    }
-
-
-
-    /**
-     * EE Admin Pages can use this to set a properly formatted trigger for a help popup.
-     * By default the trigger html is printed.  Otherwise it can be returned if the $display flag is set "false"
-     * See comments made on the _set_help_content method for understanding other parts to the help popup tool.
-     *
-     * @param string  $trigger_id reference for retrieving the trigger content for the popup
-     * @param boolean $display    if false then we return the trigger string
-     * @param array   $dimensions an array of dimensions for the box (array(h,w))
-     * @return string
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    protected function _set_help_trigger($trigger_id, $display = true, $dimensions = array('400', '640'))
-    {
-        if (defined('DOING_AJAX')) {
-            return '';
-        }
-        //let's check and see if there is any content set for this popup.  If there isn't then we'll include a default title and content so that developers know something needs to be corrected
-        $help_array   = $this->_get_help_content();
-        $help_content = '';
-        if (empty($help_array) || ! isset($help_array[$trigger_id])) {
-            $help_array[$trigger_id] = array(
-                'title'   => esc_html__('Missing Content', 'event_espresso'),
-                'content' => esc_html__(
-                    'A trigger has been set that doesn\'t have any corresponding content. Make sure you have set the help content. (see the "_set_help_popup_content" method in the EE_Admin_Page for instructions.)',
-                    'event_espresso'
-                ),
-            );
-            $help_content            = $this->_set_help_popup_content($help_array, false);
-        }
-        //let's setup the trigger
-        $content = '<a class="ee-dialog" href="?height='
-                   . $dimensions[0]
-                   . '&width='
-                   . $dimensions[1]
-                   . '&inlineId='
-                   . $trigger_id
-                   . '" target="_blank"><span class="question ee-help-popup-question"></span></a>';
-        $content .= $help_content;
-        if ($display) {
-            echo $content;
-            return  '';
-        }
-        return $content;
-    }
-
-
-
-    /**
-     * _add_global_screen_options
-     * Add any extra wp_screen_options within this method using built-in WP functions/methods for doing so.
-     * This particular method will add_screen_options on ALL EE_Admin Pages
-     *
-     * @link   http://chrismarslender.com/wp-tutorials/wordpress-screen-options-tutorial/
-     *         see also WP_Screen object documents...
-     * @link   http://codex.wordpress.org/Class_Reference/WP_Screen
-     * @abstract
-     * @return void
-     */
-    private function _add_global_screen_options()
-    {
-    }
-
-
-
-    /**
-     * _add_global_feature_pointers
-     * This method is used for implementing any "feature pointers" (using built-in WP styling js).
-     * This particular method will implement feature pointers for ALL EE_Admin pages.
-     * Note: this is just a placeholder for now.  Implementation will come down the road
-     *
-     * @see    WP_Internal_Pointers class in wp-admin/includes/template.php for example (its a final class so can't be
-     *         extended) also see:
-     * @link   http://eamann.com/tech/wordpress-portland/
-     * @abstract
-     * @return void
-     */
-    private function _add_global_feature_pointers()
-    {
-    }
-
-
-
-    /**
-     * load_global_scripts_styles
-     * The scripts and styles enqueued in here will be loaded on every EE Admin page
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function load_global_scripts_styles()
-    {
-        /** STYLES **/
-        // add debugging styles
-        if (WP_DEBUG) {
-            add_action('admin_head', array($this, 'add_xdebug_style'));
-        }
-        // register all styles
-        wp_register_style(
-            'espresso-ui-theme',
-            EE_GLOBAL_ASSETS_URL . 'css/espresso-ui-theme/jquery-ui-1.10.3.custom.min.css',
-            array(),
-            EVENT_ESPRESSO_VERSION
-        );
-        wp_register_style('ee-admin-css', EE_ADMIN_URL . 'assets/ee-admin-page.css', array(), EVENT_ESPRESSO_VERSION);
-        //helpers styles
-        wp_register_style(
-            'ee-text-links',
-            EE_PLUGIN_DIR_URL . 'core/helpers/assets/ee_text_list_helper.css',
-            array(),
-            EVENT_ESPRESSO_VERSION
-        );
-        /** SCRIPTS **/
-        //register all scripts
-        wp_register_script(
-            'ee-dialog',
-            EE_ADMIN_URL . 'assets/ee-dialog-helper.js',
-            array('jquery', 'jquery-ui-draggable'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_register_script(
-            'ee_admin_js',
-            EE_ADMIN_URL . 'assets/ee-admin-page.js',
-            array('espresso_core', 'ee-parse-uri', 'ee-dialog'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_register_script(
-            'jquery-ui-timepicker-addon',
-            EE_GLOBAL_ASSETS_URL . 'scripts/jquery-ui-timepicker-addon.js',
-            array('jquery-ui-datepicker', 'jquery-ui-slider'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        add_filter('FHEE_load_joyride', '__return_true');
-        //script for sorting tables
-        wp_register_script(
-            'espresso_ajax_table_sorting',
-            EE_ADMIN_URL . 'assets/espresso_ajax_table_sorting.js',
-            array('ee_admin_js', 'jquery-ui-sortable'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        //script for parsing uri's
-        wp_register_script(
-            'ee-parse-uri',
-            EE_GLOBAL_ASSETS_URL . 'scripts/parseuri.js',
-            array(),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        //and parsing associative serialized form elements
-        wp_register_script(
-            'ee-serialize-full-array',
-            EE_GLOBAL_ASSETS_URL . 'scripts/jquery.serializefullarray.js',
-            array('jquery'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        //helpers scripts
-        wp_register_script(
-            'ee-text-links',
-            EE_PLUGIN_DIR_URL . 'core/helpers/assets/ee_text_list_helper.js',
-            array('jquery'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_register_script(
-            'ee-moment-core',
-            EE_THIRD_PARTY_URL . 'moment/moment-with-locales.min.js',
-            array(),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_register_script(
-            'ee-moment',
-            EE_THIRD_PARTY_URL . 'moment/moment-timezone-with-data.min.js',
-            array('ee-moment-core'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_register_script(
-            'ee-datepicker',
-            EE_ADMIN_URL . 'assets/ee-datepicker.js',
-            array('jquery-ui-timepicker-addon', 'ee-moment'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        //google charts
-        wp_register_script(
-            'google-charts',
-            'https://www.gstatic.com/charts/loader.js',
-            array(),
-            EVENT_ESPRESSO_VERSION,
-            false
-        );
-        // ENQUEUE ALL BASICS BY DEFAULT
-        wp_enqueue_style('ee-admin-css');
-        wp_enqueue_script('ee_admin_js');
-        wp_enqueue_script('ee-accounting');
-        wp_enqueue_script('jquery-validate');
-        //taking care of metaboxes
-        if (
-            empty($this->_cpt_route)
-            && (isset($this->_route_config['metaboxes']) || isset($this->_route_config['has_metaboxes']))
-        ) {
-            wp_enqueue_script('dashboard');
-        }
-        // LOCALIZED DATA
-        //localize script for ajax lazy loading
-        $lazy_loader_container_ids = apply_filters(
-            'FHEE__EE_Admin_Page_Core__load_global_scripts_styles__loader_containers',
-            array('espresso_news_post_box_content')
-        );
-        wp_localize_script('ee_admin_js', 'eeLazyLoadingContainers', $lazy_loader_container_ids);
-        /**
-         * help tour stuff
-         */
-        if (! empty($this->_help_tour)) {
-            //register the js for kicking things off
-            wp_enqueue_script(
-                'ee-help-tour',
-                EE_ADMIN_URL . 'assets/ee-help-tour.js',
-                array('jquery-joyride'),
-                EVENT_ESPRESSO_VERSION,
-                true
-            );
-            $tours = array();
-            //setup tours for the js tour object
-            foreach ($this->_help_tour['tours'] as $tour) {
-                if ($tour instanceof EE_Help_Tour) {
-                    $tours[] = array(
-                        'id'      => $tour->get_slug(),
-                        'options' => $tour->get_options(),
-                    );
-                }
-            }
-            wp_localize_script('ee-help-tour', 'EE_HELP_TOUR', array('tours' => $tours));
-            //admin_footer_global will take care of making sure our help_tour skeleton gets printed via the info stored in $this->_help_tour
-        }
-    }
-
-
-
-    /**
-     *        admin_footer_scripts_eei18n_js_strings
-     *
-     * @return        void
-     */
-    public function admin_footer_scripts_eei18n_js_strings()
-    {
-        EE_Registry::$i18n_js_strings['ajax_url']       = WP_AJAX_URL;
-        EE_Registry::$i18n_js_strings['confirm_delete'] = esc_html__(
-            'Are you absolutely sure you want to delete this item?\nThis action will delete ALL DATA associated with this item!!!\nThis can NOT be undone!!!',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['January']        = esc_html__('January', 'event_espresso');
-        EE_Registry::$i18n_js_strings['February']       = esc_html__('February', 'event_espresso');
-        EE_Registry::$i18n_js_strings['March']          = esc_html__('March', 'event_espresso');
-        EE_Registry::$i18n_js_strings['April']          = esc_html__('April', 'event_espresso');
-        EE_Registry::$i18n_js_strings['May']            = esc_html__('May', 'event_espresso');
-        EE_Registry::$i18n_js_strings['June']           = esc_html__('June', 'event_espresso');
-        EE_Registry::$i18n_js_strings['July']           = esc_html__('July', 'event_espresso');
-        EE_Registry::$i18n_js_strings['August']         = esc_html__('August', 'event_espresso');
-        EE_Registry::$i18n_js_strings['September']      = esc_html__('September', 'event_espresso');
-        EE_Registry::$i18n_js_strings['October']        = esc_html__('October', 'event_espresso');
-        EE_Registry::$i18n_js_strings['November']       = esc_html__('November', 'event_espresso');
-        EE_Registry::$i18n_js_strings['December']       = esc_html__('December', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Jan']            = esc_html__('Jan', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Feb']            = esc_html__('Feb', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Mar']            = esc_html__('Mar', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Apr']            = esc_html__('Apr', 'event_espresso');
-        EE_Registry::$i18n_js_strings['May']            = esc_html__('May', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Jun']            = esc_html__('Jun', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Jul']            = esc_html__('Jul', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Aug']            = esc_html__('Aug', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Sep']            = esc_html__('Sep', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Oct']            = esc_html__('Oct', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Nov']            = esc_html__('Nov', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Dec']            = esc_html__('Dec', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Sunday']         = esc_html__('Sunday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Monday']         = esc_html__('Monday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Tuesday']        = esc_html__('Tuesday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Wednesday']      = esc_html__('Wednesday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Thursday']       = esc_html__('Thursday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Friday']         = esc_html__('Friday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Saturday']       = esc_html__('Saturday', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Sun']            = esc_html__('Sun', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Mon']            = esc_html__('Mon', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Tue']            = esc_html__('Tue', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Wed']            = esc_html__('Wed', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Thu']            = esc_html__('Thu', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Fri']            = esc_html__('Fri', 'event_espresso');
-        EE_Registry::$i18n_js_strings['Sat']            = esc_html__('Sat', 'event_espresso');
-    }
-
-
-
-    /**
-     *        load enhanced xdebug styles for ppl with failing eyesight
-     *
-     * @return        void
-     */
-    public function add_xdebug_style()
-    {
-        echo '<style>.xdebug-error { font-size:1.5em; }</style>';
-    }
-
-
-    /************************/
-    /** LIST TABLE METHODS **/
-    /************************/
-    /**
-     * this sets up the list table if the current view requires it.
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _set_list_table()
-    {
-        //first is this a list_table view?
-        if (! isset($this->_route_config['list_table'])) {
-            return;
-        } //not a list_table view so get out.
-        // list table functions are per view specific (because some admin pages might have more than one list table!)
-        $list_table_view = '_set_list_table_views_' . $this->_req_action;
-        if (! method_exists($this, $list_table_view) || $this->{$list_table_view}() === false) {
-            //user error msg
-            $error_msg = esc_html__(
-                'An error occurred. The requested list table views could not be found.',
-                'event_espresso'
-            );
-            //developer error msg
-            $error_msg .= '||' . sprintf(
-                    esc_html__(
-                        'List table views for "%s" route could not be setup. Check that you have the corresponding method, "%s" set up for defining list_table_views for this route.',
-                        'event_espresso'
-                    ),
-                    $this->_req_action,
-                    $list_table_view
-                );
-            throw new EE_Error($error_msg);
-        }
-        //let's provide the ability to filter the views per PAGE AND ROUTE, per PAGE, and globally
-        $this->_views = apply_filters(
-            'FHEE_list_table_views_' . $this->page_slug . '_' . $this->_req_action,
-            $this->_views
-        );
-        $this->_views = apply_filters('FHEE_list_table_views_' . $this->page_slug, $this->_views);
-        $this->_views = apply_filters('FHEE_list_table_views', $this->_views);
-        $this->_set_list_table_view();
-        $this->_set_list_table_object();
-    }
-
-
-
-    /**
-     * set current view for List Table
-     *
-     * @return void
-     */
-    protected function _set_list_table_view()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        // looking at active items or dumpster diving ?
-        if (! isset($this->_req_data['status']) || ! array_key_exists($this->_req_data['status'], $this->_views)) {
-            $this->_view = isset($this->_views['in_use']) ? 'in_use' : 'all';
-        } else {
-            $this->_view = sanitize_key($this->_req_data['status']);
-        }
-    }
-
-
-    /**
-     * _set_list_table_object
-     * WP_List_Table objects need to be loaded fairly early so automatic stuff WP does is taken care of.
-     *
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws EE_Error
-     * @throws InvalidInterfaceException
-     */
-    protected function _set_list_table_object()
-    {
-        if (isset($this->_route_config['list_table'])) {
-            if (! class_exists($this->_route_config['list_table'])) {
-                throw new EE_Error(
-                    sprintf(
-                        esc_html__(
-                            'The %s class defined for the list table does not exist.  Please check the spelling of the class ref in the $_page_config property on %s.',
-                            'event_espresso'
-                        ),
-                        $this->_route_config['list_table'],
-                        get_class($this)
-                    )
-                );
-            }
-            $this->_list_table_object = LoaderFactory::getLoader()->getShared(
-                $this->_route_config['list_table'],
-                array($this)
-            );
-        }
-    }
-
-
-
-    /**
-     * get_list_table_view_RLs - get it? View RL ?? VU-RL???  URL ??
-     *
-     * @param array $extra_query_args                     Optional. An array of extra query args to add to the generated
-     *                                                    urls.  The array should be indexed by the view it is being
-     *                                                    added to.
-     * @return array
-     */
-    public function get_list_table_view_RLs($extra_query_args = array())
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        if (empty($this->_views)) {
-            $this->_views = array();
-        }
-        // cycle thru views
-        foreach ($this->_views as $key => $view) {
-            $query_args = array();
-            // check for current view
-            $this->_views[$key]['class']               = $this->_view === $view['slug'] ? 'current' : '';
-            $query_args['action']                      = $this->_req_action;
-            $query_args[$this->_req_action . '_nonce'] = wp_create_nonce($query_args['action'] . '_nonce');
-            $query_args['status']                      = $view['slug'];
-            //merge any other arguments sent in.
-            if (isset($extra_query_args[$view['slug']])) {
-                $query_args = array_merge($query_args, $extra_query_args[$view['slug']]);
-            }
-            $this->_views[$key]['url'] = EE_Admin_Page::add_query_args_and_nonce($query_args, $this->_admin_base_url);
-        }
-        return $this->_views;
-    }
-
-
-
-    /**
-     * _entries_per_page_dropdown
-     * generates a drop down box for selecting the number of visible rows in an admin page list table
-     *
-     * @todo   : Note: ideally this should be added to the screen options dropdown as that would be consistent with how
-     *         WP does it.
-     * @param int $max_entries total number of rows in the table
-     * @return string
-     */
-    protected function _entries_per_page_dropdown($max_entries = 0)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $values   = array(10, 25, 50, 100);
-        $per_page = (! empty($this->_req_data['per_page'])) ? absint($this->_req_data['per_page']) : 10;
-        if ($max_entries) {
-            $values[] = $max_entries;
-            sort($values);
-        }
-        $entries_per_page_dropdown = '
+	/**
+	 * @var string $_req_action
+	 */
+	protected $_req_action;
+
+	/**
+	 * @var string $_req_nonce
+	 */
+	protected $_req_nonce;
+
+	//search related
+	protected $_search_btn_label;
+
+	protected $_search_box_callback;
+
+	/**
+	 * WP Current Screen object
+	 *
+	 * @var WP_Screen
+	 */
+	protected $_current_screen;
+
+	//for holding EE_Admin_Hooks object when needed (set via set_hook_object())
+	protected $_hook_obj;
+
+	//for holding incoming request data
+	protected $_req_data;
+
+	// yes / no array for admin form fields
+	protected $_yes_no_values = array();
+
+	//some default things shared by all child classes
+	protected $_default_espresso_metaboxes;
+
+	/**
+	 *    EE_Registry Object
+	 *
+	 * @var    EE_Registry
+	 */
+	protected $EE = null;
+
+
+
+	/**
+	 * This is just a property that flags whether the given route is a caffeinated route or not.
+	 *
+	 * @var boolean
+	 */
+	protected $_is_caf = false;
+
+
+
+	/**
+	 * @Constructor
+	 * @param bool $routing indicate whether we want to just load the object and handle routing or just load the object.
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function __construct($routing = true)
+	{
+		if (strpos($this->_get_dir(), 'caffeinated') !== false) {
+			$this->_is_caf = true;
+		}
+		$this->_yes_no_values = array(
+			array('id' => true, 'text' => esc_html__('Yes', 'event_espresso')),
+			array('id' => false, 'text' => esc_html__('No', 'event_espresso')),
+		);
+		//set the _req_data property.
+		$this->_req_data = array_merge($_GET, $_POST);
+		//routing enabled?
+		$this->_routing = $routing;
+		//set initial page props (child method)
+		$this->_init_page_props();
+		//set global defaults
+		$this->_set_defaults();
+		//set early because incoming requests could be ajax related and we need to register those hooks.
+		$this->_global_ajax_hooks();
+		$this->_ajax_hooks();
+		//other_page_hooks have to be early too.
+		$this->_do_other_page_hooks();
+		//This just allows us to have extending classes do something specific
+		// before the parent constructor runs _page_setup().
+		if (method_exists($this, '_before_page_setup')) {
+			$this->_before_page_setup();
+		}
+		//set up page dependencies
+		$this->_page_setup();
+	}
+
+
+
+	/**
+	 * _init_page_props
+	 * Child classes use to set at least the following properties:
+	 * $page_slug.
+	 * $page_label.
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _init_page_props();
+
+
+
+	/**
+	 * _ajax_hooks
+	 * child classes put all their add_action('wp_ajax_{name_of_hook}') hooks in here.
+	 * Note: within the ajax callback methods.
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _ajax_hooks();
+
+
+
+	/**
+	 * _define_page_props
+	 * child classes define page properties in here.  Must include at least:
+	 * $_admin_base_url = base_url for all admin pages
+	 * $_admin_page_title = default admin_page_title for admin pages
+	 * $_labels = array of default labels for various automatically generated elements:
+	 *    array(
+	 *        'buttons' => array(
+	 *            'add' => esc_html__('label for add new button'),
+	 *            'edit' => esc_html__('label for edit button'),
+	 *            'delete' => esc_html__('label for delete button')
+	 *            )
+	 *        )
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _define_page_props();
+
+
+
+	/**
+	 * _set_page_routes
+	 * child classes use this to define the page routes for all subpages handled by the class.  Page routes are
+	 * assigned to a action => method pairs in an array and to the $_page_routes property.  Each page route must also
+	 * have a 'default' route. Here's the format
+	 * $this->_page_routes = array(
+	 *        'default' => array(
+	 *            'func' => '_default_method_handling_route',
+	 *            'args' => array('array','of','args'),
+	 *            'noheader' => true, //add this in if this page route is processed before any headers are loaded (i.e.
+	 *            ajax request, backend processing)
+	 *            'headers_sent_route'=>'headers_route_reference', //add this if noheader=>true, and you want to load a
+	 *            headers route after.  The string you enter here should match the defined route reference for a
+	 *            headers sent route.
+	 *            'capability' => 'route_capability', //indicate a string for minimum capability required to access
+	 *            this route.
+	 *            'obj_id' => 10 // if this route has an object id, then this can include it (used for capability
+	 *            checks).
+	 *        ),
+	 *        'insert_item' => '_method_for_handling_insert_item' //this can be used if all we need to have is a
+	 *        handling method.
+	 *        )
+	 * )
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _set_page_routes();
+
+
+
+	/**
+	 * _set_page_config
+	 * child classes use this to define the _page_config array for all subpages handled by the class. Each key in the
+	 * array corresponds to the page_route for the loaded page. Format:
+	 * $this->_page_config = array(
+	 *        'default' => array(
+	 *            'labels' => array(
+	 *                'buttons' => array(
+	 *                    'add' => esc_html__('label for adding item'),
+	 *                    'edit' => esc_html__('label for editing item'),
+	 *                    'delete' => esc_html__('label for deleting item')
+	 *                ),
+	 *                'publishbox' => esc_html__('Localized Title for Publish metabox', 'event_espresso')
+	 *            ), //optional an array of custom labels for various automatically generated elements to use on the
+	 *            page. If this isn't present then the defaults will be used as set for the $this->_labels in
+	 *            _define_page_props() method
+	 *            'nav' => array(
+	 *                'label' => esc_html__('Label for Tab', 'event_espresso').
+	 *                'url' => 'http://someurl', //automatically generated UNLESS you define
+	 *                'css_class' => 'css-class', //automatically generated UNLESS you define
+	 *                'order' => 10, //required to indicate tab position.
+	 *                'persistent' => false //if you want the nav tab to ONLY display when the specific route is
+	 *                displayed then add this parameter.
+	 *            'list_table' => 'name_of_list_table' //string for list table class to be loaded for this admin_page.
+	 *            'metaboxes' => array('metabox1', 'metabox2'), //if present this key indicates we want to load
+	 *            metaboxes set for eventespresso admin pages.
+	 *            'has_metaboxes' => true, //this boolean flag can simply be used to indicate if the route will have
+	 *            metaboxes.  Typically this is used if the 'metaboxes' index is not used because metaboxes are added
+	 *            later.  We just use this flag to make sure the necessary js gets enqueued on page load.
+	 *            'has_help_popups' => false //defaults(true) //this boolean flag can simply be used to indicate if the
+	 *            given route has help popups setup and if it does then we need to make sure thickbox is enqueued.
+	 *            'columns' => array(4, 2), //this key triggers the setup of a page that uses columns (metaboxes).  The
+	 *            array indicates the max number of columns (4) and the default number of columns on page load (2).
+	 *            There is an option in the "screen_options" dropdown that is setup so users can pick what columns they
+	 *            want to display.
+	 *            'help_tabs' => array( //this is used for adding help tabs to a page
+	 *                'tab_id' => array(
+	 *                    'title' => 'tab_title',
+	 *                    'filename' => 'name_of_file_containing_content', //this is the primary method for setting
+	 *                    help tab content.  The fallback if it isn't present is to try a the callback.  Filename
+	 *                    should match a file in the admin folder's "help_tabs" dir (ie..
+	 *                    events/help_tabs/name_of_file_containing_content.help_tab.php)
+	 *                    'callback' => 'callback_method_for_content', //if 'filename' isn't present then system will
+	 *                    attempt to use the callback which should match the name of a method in the class
+	 *                    ),
+	 *                'tab2_id' => array(
+	 *                    'title' => 'tab2 title',
+	 *                    'filename' => 'file_name_2'
+	 *                    'callback' => 'callback_method_for_content',
+	 *                 ),
+	 *            'help_sidebar' => 'callback_for_sidebar_content', //this is used for setting up the sidebar in the
+	 *            help tab area on an admin page. @link
+	 *            http://make.wordpress.org/core/2011/12/06/help-and-screen-api-changes-in-3-3/
+	 *            'help_tour' => array(
+	 *                'name_of_help_tour_class', //all help tours shoudl be a child class of EE_Help_Tour and located
+	 *                in a folder for this admin page named "help_tours", a file name matching the key given here
+	 *                (name_of_help_tour_class.class.php), and class matching key given here (name_of_help_tour_class)
+	 *            ),
+	 *            'require_nonce' => TRUE //this is used if you want to set a route to NOT require a nonce (default is
+	 *            true if it isn't present).  To remove the requirement for a nonce check when this route is visited
+	 *            just set
+	 *            'require_nonce' to FALSE
+	 *            )
+	 * )
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _set_page_config();
+
+
+
+
+
+	/** end sample help_tour methods **/
+	/**
+	 * _add_screen_options
+	 * Child classes can add any extra wp_screen_options within this method using built-in WP functions/methods for
+	 * doing so. Note child classes can also define _add_screen_options_($this->_current_view) to limit screen options
+	 * to a particular view.
+	 *
+	 * @link   http://chrismarslender.com/wp-tutorials/wordpress-screen-options-tutorial/
+	 *         see also WP_Screen object documents...
+	 * @link   http://codex.wordpress.org/Class_Reference/WP_Screen
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _add_screen_options();
+
+
+
+	/**
+	 * _add_feature_pointers
+	 * Child classes should use this method for implementing any "feature pointers" (using built-in WP styling js).
+	 * Note child classes can also define _add_feature_pointers_($this->_current_view) to limit screen options to a
+	 * particular view. Note: this is just a placeholder for now.  Implementation will come down the road See:
+	 * WP_Internal_Pointers class in wp-admin/includes/template.php for example (its a final class so can't be
+	 * extended) also see:
+	 *
+	 * @link   http://eamann.com/tech/wordpress-portland/
+	 * @abstract
+	 * @return void
+	 */
+	abstract protected function _add_feature_pointers();
+
+
+
+	/**
+	 * load_scripts_styles
+	 * child classes put their wp_enqueue_script and wp_enqueue_style hooks in here for anything they need loaded for
+	 * their pages/subpages.  Note this is for all pages/subpages of the system.  You can also load only specific
+	 * scripts/styles per view by putting them in a dynamic function in this format
+	 * (load_scripts_styles_{$this->_current_view}) which matches your page route (action request arg)
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract public function load_scripts_styles();
+
+
+
+	/**
+	 * admin_init
+	 * Anything that should be set/executed at 'admin_init' WP hook runtime should be put in here.  This will apply to
+	 * all pages/views loaded by child class.
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract public function admin_init();
+
+
+
+	/**
+	 * admin_notices
+	 * Anything triggered by the 'admin_notices' WP hook should be put in here.  This particular method will apply to
+	 * all pages/views loaded by child class.
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	abstract public function admin_notices();
+
+
+
+	/**
+	 * admin_footer_scripts
+	 * Anything triggered by the 'admin_print_footer_scripts' WP hook should be put in here. This particular method
+	 * will apply to all pages/views loaded by child class.
+	 *
+	 * @return void
+	 */
+	abstract public function admin_footer_scripts();
+
+
+
+	/**
+	 * admin_footer
+	 * anything triggered by the 'admin_footer' WP action hook should be added to here. This particular method will
+	 * apply to all pages/views loaded by child class.
+	 *
+	 * @return void
+	 */
+	public function admin_footer()
+	{
+	}
+
+
+
+	/**
+	 * _global_ajax_hooks
+	 * all global add_action('wp_ajax_{name_of_hook}') hooks in here.
+	 * Note: within the ajax callback methods.
+	 *
+	 * @abstract
+	 * @return void
+	 */
+	protected function _global_ajax_hooks()
+	{
+		//for lazy loading of metabox content
+		add_action('wp_ajax_espresso-ajax-content', array($this, 'ajax_metabox_content'), 10);
+	}
+
+
+
+	public function ajax_metabox_content()
+	{
+		$contentid = isset($this->_req_data['contentid']) ? $this->_req_data['contentid'] : '';
+		$url       = isset($this->_req_data['contenturl']) ? $this->_req_data['contenturl'] : '';
+		self::cached_rss_display($contentid, $url);
+		wp_die();
+	}
+
+
+
+	/**
+	 * _page_setup
+	 * Makes sure any things that need to be loaded early get handled.  We also escape early here if the page requested
+	 * doesn't match the object.
+	 *
+	 * @final
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	final protected function _page_setup()
+	{
+		//requires?
+		//admin_init stuff - global - we're setting this REALLY early so if EE_Admin pages have to hook into other WP pages they can.  But keep in mind, not everything is available from the EE_Admin Page object at this point.
+		add_action('admin_init', array($this, 'admin_init_global'), 5);
+		//next verify if we need to load anything...
+		$this->_current_page = ! empty($_GET['page']) ? sanitize_key($_GET['page']) : '';
+		$this->page_folder   = strtolower(
+			str_replace(array('_Admin_Page', 'Extend_'), '', get_class($this))
+		);
+		global $ee_menu_slugs;
+		$ee_menu_slugs = (array)$ee_menu_slugs;
+		if (! defined('DOING_AJAX') && (! $this->_current_page || ! isset($ee_menu_slugs[$this->_current_page]))) {
+			return;
+		}
+		// becuz WP List tables have two duplicate select inputs for choosing bulk actions, we need to copy the action from the second to the first
+		if (isset($this->_req_data['action2']) && $this->_req_data['action'] === '-1') {
+			$this->_req_data['action'] = ! empty($this->_req_data['action2']) && $this->_req_data['action2'] !== '-1'
+				? $this->_req_data['action2']
+				: $this->_req_data['action'];
+		}
+		// then set blank or -1 action values to 'default'
+		$this->_req_action = isset($this->_req_data['action'])
+							 && ! empty($this->_req_data['action'])
+							 && $this->_req_data['action'] !== '-1'
+			? sanitize_key($this->_req_data['action'])
+			: 'default';
+		// if action is 'default' after the above BUT we have  'route' var set, then let's use the route as the action.
+		//  This covers cases where we're coming in from a list table that isn't on the default route.
+		$this->_req_action = $this->_req_action === 'default' && isset($this->_req_data['route'])
+			? $this->_req_data['route'] : $this->_req_action;
+		//however if we are doing_ajax and we've got a 'route' set then that's what the req_action will be
+		$this->_req_action   = defined('DOING_AJAX') && isset($this->_req_data['route'])
+			? $this->_req_data['route']
+			: $this->_req_action;
+		$this->_current_view = $this->_req_action;
+		$this->_req_nonce    = $this->_req_action . '_nonce';
+		$this->_define_page_props();
+		$this->_current_page_view_url = add_query_arg(
+			array('page' => $this->_current_page, 'action' => $this->_current_view),
+			$this->_admin_base_url
+		);
+		//default things
+		$this->_default_espresso_metaboxes = array(
+			'_espresso_news_post_box',
+			'_espresso_links_post_box',
+			'_espresso_ratings_request',
+			'_espresso_sponsors_post_box',
+		);
+		//set page configs
+		$this->_set_page_routes();
+		$this->_set_page_config();
+		//let's include any referrer data in our default_query_args for this route for "stickiness".
+		if (isset($this->_req_data['wp_referer'])) {
+			$this->_default_route_query_args['wp_referer'] = $this->_req_data['wp_referer'];
+		}
+		//for caffeinated and other extended functionality.
+		//  If there is a _extend_page_config method
+		// then let's run that to modify the all the various page configuration arrays
+		if (method_exists($this, '_extend_page_config')) {
+			$this->_extend_page_config();
+		}
+		//for CPT and other extended functionality.
+		// If there is an _extend_page_config_for_cpt
+		// then let's run that to modify all the various page configuration arrays.
+		if (method_exists($this, '_extend_page_config_for_cpt')) {
+			$this->_extend_page_config_for_cpt();
+		}
+		//filter routes and page_config so addons can add their stuff. Filtering done per class
+		$this->_page_routes = apply_filters(
+			'FHEE__' . get_class($this) . '__page_setup__page_routes',
+			$this->_page_routes,
+			$this
+		);
+		$this->_page_config = apply_filters(
+			'FHEE__' . get_class($this) . '__page_setup__page_config',
+			$this->_page_config,
+			$this
+		);
+		//if AHEE__EE_Admin_Page__route_admin_request_$this->_current_view method is present
+		// then we call it hooked into the AHEE__EE_Admin_Page__route_admin_request action
+		if (
+			method_exists($this, 'AHEE__EE_Admin_Page__route_admin_request_' . $this->_current_view)
+		) {
+			add_action(
+				'AHEE__EE_Admin_Page__route_admin_request',
+				array($this, 'AHEE__EE_Admin_Page__route_admin_request_' . $this->_current_view),
+				10,
+				2
+			);
+		}
+		//next route only if routing enabled
+		if ($this->_routing && ! defined('DOING_AJAX')) {
+			$this->_verify_routes();
+			//next let's just check user_access and kill if no access
+			$this->check_user_access();
+			if ($this->_is_UI_request) {
+				//admin_init stuff - global, all views for this page class, specific view
+				add_action('admin_init', array($this, 'admin_init'), 10);
+				if (method_exists($this, 'admin_init_' . $this->_current_view)) {
+					add_action('admin_init', array($this, 'admin_init_' . $this->_current_view), 15);
+				}
+			} else {
+				//hijack regular WP loading and route admin request immediately
+				@ini_set('memory_limit', apply_filters('admin_memory_limit', WP_MAX_MEMORY_LIMIT));
+				$this->route_admin_request();
+			}
+		}
+	}
+
+
+
+	/**
+	 * Provides a way for related child admin pages to load stuff on the loaded admin page.
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 * @throws EE_Error
+	 */
+	private function _do_other_page_hooks()
+	{
+		$registered_pages = apply_filters('FHEE_do_other_page_hooks_' . $this->page_slug, array());
+		foreach ($registered_pages as $page) {
+			//now let's setup the file name and class that should be present
+			$classname = str_replace('.class.php', '', $page);
+			//autoloaders should take care of loading file
+			if (! class_exists($classname)) {
+				$error_msg[] = sprintf(
+					esc_html__(
+						'Something went wrong with loading the %s admin hooks page.',
+						'event_espresso'
+					),
+					$page
+				);
+				$error_msg[] = $error_msg[0]
+							   . "\r\n"
+							   . sprintf(
+								   esc_html__(
+									   'There is no class in place for the %1$s admin hooks page.%2$sMake sure you have %3$s defined. If this is a non-EE-core admin page then you also must have an autoloader in place for your class',
+									   'event_espresso'
+								   ),
+								   $page,
+								   '<br />',
+								   '<strong>' . $classname . '</strong>'
+							   );
+				throw new EE_Error(implode('||', $error_msg));
+			}
+			$a = new ReflectionClass($classname);
+			//notice we are passing the instance of this class to the hook object.
+			$hookobj[] = $a->newInstance($this);
+		}
+	}
+
+
+
+	public function load_page_dependencies()
+	{
+		try {
+			$this->_load_page_dependencies();
+		} catch (EE_Error $e) {
+			$e->get_error();
+		}
+	}
+
+
+
+	/**
+	 * load_page_dependencies
+	 * loads things specific to this page class when its loaded.  Really helps with efficiency.
+	 *
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	protected function _load_page_dependencies()
+	{
+		//let's set the current_screen and screen options to override what WP set
+		$this->_current_screen = get_current_screen();
+		//load admin_notices - global, page class, and view specific
+		add_action('admin_notices', array($this, 'admin_notices_global'), 5);
+		add_action('admin_notices', array($this, 'admin_notices'), 10);
+		if (method_exists($this, 'admin_notices_' . $this->_current_view)) {
+			add_action('admin_notices', array($this, 'admin_notices_' . $this->_current_view), 15);
+		}
+		//load network admin_notices - global, page class, and view specific
+		add_action('network_admin_notices', array($this, 'network_admin_notices_global'), 5);
+		if (method_exists($this, 'network_admin_notices_' . $this->_current_view)) {
+			add_action('network_admin_notices', array($this, 'network_admin_notices_' . $this->_current_view));
+		}
+		//this will save any per_page screen options if they are present
+		$this->_set_per_page_screen_options();
+		//setup list table properties
+		$this->_set_list_table();
+		// child classes can "register" a metabox to be automatically handled via the _page_config array property.
+		// However in some cases the metaboxes will need to be added within a route handling callback.
+		$this->_add_registered_meta_boxes();
+		$this->_add_screen_columns();
+		//add screen options - global, page child class, and view specific
+		$this->_add_global_screen_options();
+		$this->_add_screen_options();
+		$add_screen_options  = "_add_screen_options_{$this->_current_view}";
+		if (method_exists($this, $add_screen_options )) {
+			$this->{$add_screen_options}();
+		}
+		//add help tab(s) and tours- set via page_config and qtips.
+		$this->_add_help_tour();
+		$this->_add_help_tabs();
+		$this->_add_qtips();
+		//add feature_pointers - global, page child class, and view specific
+		$this->_add_feature_pointers();
+		$this->_add_global_feature_pointers();
+		$add_feature_pointer = "_add_feature_pointer_{$this->_current_view}";
+		if (method_exists($this, $add_feature_pointer )) {
+			$this->{$add_feature_pointer}();
+		}
+		//enqueue scripts/styles - global, page class, and view specific
+		add_action('admin_enqueue_scripts', array($this, 'load_global_scripts_styles'), 5);
+		add_action('admin_enqueue_scripts', array($this, 'load_scripts_styles'), 10);
+		if (method_exists($this, "load_scripts_styles_{$this->_current_view}")) {
+			add_action('admin_enqueue_scripts', array($this, "load_scripts_styles_{$this->_current_view}"), 15);
+		}
+		add_action('admin_enqueue_scripts', array($this, 'admin_footer_scripts_eei18n_js_strings'), 100);
+		// admin_print_footer_scripts - global, page child class, and view specific.
+		// NOTE, despite the name, whenever possible, scripts should NOT be loaded using this.
+		// In most cases that's doing_it_wrong().  But adding hidden container elements etc.
+		// is a good use case. Notice the late priority we're giving these
+		add_action('admin_print_footer_scripts', array($this, 'admin_footer_scripts_global'), 99);
+		add_action('admin_print_footer_scripts', array($this, 'admin_footer_scripts'), 100);
+		if (method_exists($this, "admin_footer_scripts_{$this->_current_view}")) {
+			add_action('admin_print_footer_scripts', array($this, "admin_footer_scripts_{$this->_current_view}"), 101);
+		}
+		//admin footer scripts
+		add_action('admin_footer', array($this, 'admin_footer_global'), 99);
+		add_action('admin_footer', array($this, 'admin_footer'), 100);
+		if (method_exists($this, "admin_footer_{$this->_current_view}")) {
+			add_action('admin_footer', array($this, "admin_footer_{$this->_current_view}"), 101);
+		}
+		do_action('FHEE__EE_Admin_Page___load_page_dependencies__after_load', $this->page_slug);
+		//targeted hook
+		do_action(
+			"FHEE__EE_Admin_Page___load_page_dependencies__after_load__{$this->page_slug}__{$this->_req_action}"
+
+		);
+	}
+
+
+
+	/**
+	 * _set_defaults
+	 * This sets some global defaults for class properties.
+	 */
+	private function _set_defaults()
+	{
+		$this->_current_screen = $this->_admin_page_title = $this->_req_action = $this->_req_nonce = null;
+		$this->_event = $this->_template_path = $this->_column_template_path = null;
+		$this->_nav_tabs = $this->_views = $this->_page_routes = array();
+		$this->_page_config = $this->_default_route_query_args = array();
+		$this->_default_nav_tab_name = 'overview';
+		//init template args
+		$this->_template_args = array(
+			'admin_page_header'  => '',
+			'admin_page_content' => '',
+			'post_body_content'  => '',
+			'before_list_table'  => '',
+			'after_list_table'   => '',
+		);
+	}
+
+
+
+	/**
+	 * route_admin_request
+	 *
+	 * @see    _route_admin_request()
+	 * @return exception|void error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public function route_admin_request()
+	{
+		try {
+			$this->_route_admin_request();
+		} catch (EE_Error $e) {
+			$e->get_error();
+		}
+	}
+
+
+
+	public function set_wp_page_slug($wp_page_slug)
+	{
+		$this->_wp_page_slug = $wp_page_slug;
+		//if in network admin then we need to append "-network" to the page slug. Why? Because that's how WP rolls...
+		if (is_network_admin()) {
+			$this->_wp_page_slug .= '-network';
+		}
+	}
+
+
+
+	/**
+	 * _verify_routes
+	 * All this method does is verify the incoming request and make sure that routes exist for it.  We do this early so
+	 * we know if we need to drop out.
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	protected function _verify_routes()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		if (! $this->_current_page && ! defined('DOING_AJAX')) {
+			return false;
+		}
+		$this->_route = false;
+		// check that the page_routes array is not empty
+		if (empty($this->_page_routes)) {
+			// user error msg
+			$error_msg = sprintf(
+				esc_html__('No page routes have been set for the %s admin page.', 'event_espresso'),
+				$this->_admin_page_title
+			);
+			// developer error msg
+			$error_msg .= '||' . $error_msg . esc_html__(
+				' Make sure the "set_page_routes()" method exists, and is setting the "_page_routes" array properly.',
+				'event_espresso'
+			);
+			throw new EE_Error($error_msg);
+		}
+		// and that the requested page route exists
+		if (array_key_exists($this->_req_action, $this->_page_routes)) {
+			$this->_route        = $this->_page_routes[$this->_req_action];
+			$this->_route_config = isset($this->_page_config[$this->_req_action])
+				? $this->_page_config[$this->_req_action] : array();
+		} else {
+			// user error msg
+			$error_msg = sprintf(
+				esc_html__(
+						'The requested page route does not exist for the %s admin page.',
+						'event_espresso'
+				),
+				$this->_admin_page_title
+			);
+			// developer error msg
+			$error_msg .= '||' . $error_msg . sprintf(
+					esc_html__(
+						' Create a key in the "_page_routes" array named "%s" and set its value to the appropriate method.',
+						'event_espresso'
+					),
+					$this->_req_action
+				);
+			throw new EE_Error($error_msg);
+		}
+		// and that a default route exists
+		if (! array_key_exists('default', $this->_page_routes)) {
+			// user error msg
+			$error_msg = sprintf(
+				esc_html__(
+						'A default page route has not been set for the % admin page.',
+						'event_espresso'
+				),
+				$this->_admin_page_title
+			);
+			// developer error msg
+			$error_msg .= '||' . $error_msg . esc_html__(
+				' Create a key in the "_page_routes" array named "default" and set its value to your default page method.',
+				'event_espresso'
+			);
+			throw new EE_Error($error_msg);
+		}
+		//first lets' catch if the UI request has EVER been set.
+		if ($this->_is_UI_request === null) {
+			//lets set if this is a UI request or not.
+			$this->_is_UI_request = ! isset($this->_req_data['noheader']) || $this->_req_data['noheader'] !== true;
+			//wait a minute... we might have a noheader in the route array
+			$this->_is_UI_request = is_array($this->_route)
+									&& isset($this->_route['noheader'])
+									&& $this->_route['noheader'] ? false : $this->_is_UI_request;
+		}
+		$this->_set_current_labels();
+		return true;
+	}
+
+
+
+	/**
+	 * this method simply verifies a given route and makes sure its an actual route available for the loaded page
+	 *
+	 * @param  string $route the route name we're verifying
+	 * @return mixed (bool|Exception)      we'll throw an exception if this isn't a valid route.
+	 * @throws EE_Error
+	 */
+	protected function _verify_route($route)
+	{
+		if (array_key_exists($this->_req_action, $this->_page_routes)) {
+			return true;
+		}
+		// user error msg
+		$error_msg = sprintf(
+			esc_html__('The given page route does not exist for the %s admin page.', 'event_espresso'),
+			$this->_admin_page_title
+		);
+		// developer error msg
+		$error_msg .= '||' . $error_msg . sprintf(
+				esc_html__(
+					' Check the route you are using in your method (%s) and make sure it matches a route set in your "_page_routes" array property',
+					'event_espresso'
+				),
+				$route
+			);
+		throw new EE_Error($error_msg);
+	}
+
+
+
+	/**
+	 * perform nonce verification
+	 * This method has be encapsulated here so that any ajax requests that bypass normal routes can verify their nonces
+	 * using this method (and save retyping!)
+	 *
+	 * @param  string $nonce     The nonce sent
+	 * @param  string $nonce_ref The nonce reference string (name0)
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _verify_nonce($nonce, $nonce_ref)
+	{
+		// verify nonce against expected value
+		if (! wp_verify_nonce($nonce, $nonce_ref)) {
+			// these are not the droids you are looking for !!!
+			$msg = sprintf(
+				esc_html__('%sNonce Fail.%s', 'event_espresso'),
+				'<a href="http://www.youtube.com/watch?v=56_S0WeTkzs">',
+				'</a>'
+			);
+			if (WP_DEBUG) {
+				$msg .= "\n  " . sprintf(
+						esc_html__(
+							'In order to dynamically generate nonces for your actions, use the %s::add_query_args_and_nonce() method. May the Nonce be with you!',
+							'event_espresso'
+						),
+						__CLASS__
+					);
+			}
+			if (! defined('DOING_AJAX')) {
+				wp_die($msg);
+			} else {
+				EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+				$this->_return_json();
+			}
+		}
+	}
+
+
+
+	/**
+	 * _route_admin_request()
+	 * Meat and potatoes of the class.  Basically, this dude checks out what's being requested and sees if theres are
+	 * some doodads to work the magic and handle the flingjangy. Translation:  Checks if the requested action is listed
+	 * in the page routes and then will try to load the corresponding method.
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	protected function _route_admin_request()
+	{
+		if (! $this->_is_UI_request) {
+			$this->_verify_routes();
+		}
+		$nonce_check = isset($this->_route_config['require_nonce'])
+			? $this->_route_config['require_nonce']
+			: true;
+		if ($this->_req_action !== 'default' && $nonce_check) {
+			// set nonce from post data
+			$nonce = isset($this->_req_data[$this->_req_nonce])
+				? sanitize_text_field($this->_req_data[$this->_req_nonce])
+				: '';
+			$this->_verify_nonce($nonce, $this->_req_nonce);
+		}
+		//set the nav_tabs array but ONLY if this is  UI_request
+		if ($this->_is_UI_request) {
+			$this->_set_nav_tabs();
+		}
+		// grab callback function
+		$func = is_array($this->_route) ? $this->_route['func'] : $this->_route;
+		// check if callback has args
+		$args      = is_array($this->_route) && isset($this->_route['args']) ? $this->_route['args'] : array();
+		$error_msg = '';
+		// action right before calling route
+		// (hook is something like 'AHEE__Registrations_Admin_Page__route_admin_request')
+		if (! did_action('AHEE__EE_Admin_Page__route_admin_request')) {
+			do_action('AHEE__EE_Admin_Page__route_admin_request', $this->_current_view, $this);
+		}
+		// right before calling the route, let's remove _wp_http_referer from the
+		// $_SERVER[REQUEST_URI] global (its now in _req_data for route processing).
+		$_SERVER['REQUEST_URI'] = remove_query_arg(
+				'_wp_http_referer',
+				wp_unslash($_SERVER['REQUEST_URI'])
+		);
+		if (! empty($func)) {
+			if (is_array($func)) {
+				list($class, $method) = $func;
+			} elseif (strpos($func, '::') !== false) {
+				list($class, $method) = explode('::', $func);
+			} else {
+				$class  = $this;
+				$method = $func;
+			}
+			if (! (is_object($class) && $class === $this)) {
+				// send along this admin page object for access by addons.
+				$args['admin_page_object'] = $this;
+			}
+			if (
+				//is it a method on a class that doesn't work?
+				(
+					(
+						method_exists($class, $method)
+						&& call_user_func_array(array($class, $method), $args) === false
+					)
+					&& (
+						//is it a standalone function that doesn't work?
+						function_exists($method)
+						&& call_user_func_array(
+							$func,
+							array_merge(array('admin_page_object' => $this), $args)
+						   ) === false
+					)
+				)
+				|| (
+					//is it neither a class method NOR a standalone function?
+					! method_exists($class, $method)
+					&& ! function_exists($method)
+				)
+			) {
+				// user error msg
+				$error_msg = esc_html__(
+					'An error occurred. The  requested page route could not be found.',
+					'event_espresso'
+				);
+				// developer error msg
+				$error_msg .= '||';
+				$error_msg .= sprintf(
+					esc_html__(
+						'Page route "%s" could not be called. Check that the spelling for method names and actions in the "_page_routes" array are all correct.',
+						'event_espresso'
+					),
+					$method
+				);
+			}
+			if (! empty($error_msg)) {
+				throw new EE_Error($error_msg);
+			}
+		}
+		// if we've routed and this route has a no headers route AND a sent_headers_route,
+		// then we need to reset the routing properties to the new route.
+		//now if UI request is FALSE and noheader is true AND we have a headers_sent_route in the route array then let's set UI_request to true because the no header route has a second func after headers have been sent.
+		if ($this->_is_UI_request === false
+			&& is_array($this->_route)
+			&& ! empty($this->_route['headers_sent_route'])
+		) {
+			$this->_reset_routing_properties($this->_route['headers_sent_route']);
+		}
+	}
+
+
+
+	/**
+	 * This method just allows the resetting of page properties in the case where a no headers
+	 * route redirects to a headers route in its route config.
+	 *
+	 * @since   4.3.0
+	 * @param  string $new_route New (non header) route to redirect to.
+	 * @return   void
+	 * @throws ReflectionException
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	protected function _reset_routing_properties($new_route)
+	{
+		$this->_is_UI_request = true;
+		//now we set the current route to whatever the headers_sent_route is set at
+		$this->_req_data['action'] = $new_route;
+		//rerun page setup
+		$this->_page_setup();
+	}
+
+
+
+	/**
+	 * _add_query_arg
+	 * adds nonce to array of arguments then calls WP add_query_arg function
+	 *(internally just uses EEH_URL's function with the same name)
+	 *
+	 * @param array  $args
+	 * @param string $url
+	 * @param bool   $sticky                  if true, then the existing Request params will be appended to the
+	 *                                        generated url in an associative array indexed by the key 'wp_referer';
+	 *                                        Example usage: If the current page is:
+	 *                                        http://mydomain.com/wp-admin/admin.php?page=espresso_registrations
+	 *                                        &action=default&event_id=20&month_range=March%202015
+	 *                                        &_wpnonce=5467821
+	 *                                        and you call:
+	 *                                        EE_Admin_Page::add_query_args_and_nonce(
+	 *                                        array(
+	 *                                        'action' => 'resend_something',
+	 *                                        'page=>espresso_registrations'
+	 *                                        ),
+	 *                                        $some_url,
+	 *                                        true
+	 *                                        );
+	 *                                        It will produce a url in this structure:
+	 *                                        http://{$some_url}/?page=espresso_registrations&action=resend_something
+	 *                                        &wp_referer[action]=default&wp_referer[event_id]=20&wpreferer[
+	 *                                        month_range]=March%202015
+	 * @param   bool $exclude_nonce           If true, the the nonce will be excluded from the generated nonce.
+	 * @return string
+	 */
+	public static function add_query_args_and_nonce(
+		$args = array(),
+		$url = false,
+		$sticky = false,
+		$exclude_nonce = false
+	) {
+		//if there is a _wp_http_referer include the values from the request but only if sticky = true
+		if ($sticky) {
+			$request = $_REQUEST;
+			unset($request['_wp_http_referer']);
+			unset($request['wp_referer']);
+			foreach ($request as $key => $value) {
+				//do not add nonces
+				if (strpos($key, 'nonce') !== false) {
+					continue;
+				}
+				$args['wp_referer[' . $key . ']'] = $value;
+			}
+		}
+		return EEH_URL::add_query_args_and_nonce($args, $url, $exclude_nonce);
+	}
+
+
+
+	/**
+	 * This returns a generated link that will load the related help tab.
+	 *
+	 * @param  string $help_tab_id the id for the connected help tab
+	 * @param  string $icon_style  (optional) include css class for the style you want to use for the help icon.
+	 * @param  string $help_text   (optional) send help text you want to use for the link if default not to be used
+	 * @uses EEH_Template::get_help_tab_link()
+	 * @return string              generated link
+	 */
+	protected function _get_help_tab_link($help_tab_id, $icon_style = '', $help_text = '')
+	{
+		return EEH_Template::get_help_tab_link(
+			$help_tab_id,
+			$this->page_slug,
+			$this->_req_action,
+			$icon_style,
+			$help_text
+		);
+	}
+
+
+
+	/**
+	 * _add_help_tabs
+	 * Note child classes define their help tabs within the page_config array.
+	 *
+	 * @link   http://codex.wordpress.org/Function_Reference/add_help_tab
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	protected function _add_help_tabs()
+	{
+		$tour_buttons = '';
+		if (isset($this->_page_config[$this->_req_action])) {
+			$config = $this->_page_config[$this->_req_action];
+			//is there a help tour for the current route?  if there is let's setup the tour buttons
+			if (isset($this->_help_tour[$this->_req_action])) {
+				$tb           = array();
+				$tour_buttons = '<div class="ee-abs-container"><div class="ee-help-tour-restart-buttons">';
+				foreach ($this->_help_tour['tours'] as $tour) {
+					//if this is the end tour then we don't need to setup a button
+					if ($tour instanceof EE_Help_Tour_final_stop || ! $tour instanceof EE_Help_Tour) {
+						continue;
+					}
+					$tb[] = '<button id="trigger-tour-'
+							. $tour->get_slug()
+							. '" class="button-primary trigger-ee-help-tour">'
+							. $tour->get_label()
+							. '</button>';
+				}
+				$tour_buttons .= implode('<br />', $tb);
+				$tour_buttons .= '</div></div>';
+			}
+			// let's see if there is a help_sidebar set for the current route and we'll set that up for usage as well.
+			if (is_array($config) && isset($config['help_sidebar'])) {
+				//check that the callback given is valid
+				if (! method_exists($this, $config['help_sidebar'])) {
+					throw new EE_Error(
+						sprintf(
+							esc_html__(
+								'The _page_config array has a callback set for the "help_sidebar" option.  However the callback given (%s) is not a valid callback.  Doublecheck the spelling and make sure this method exists for the class %s',
+								'event_espresso'
+							),
+							$config['help_sidebar'],
+							get_class($this)
+						)
+					);
+				}
+				$content = apply_filters(
+					'FHEE__' . get_class($this) . '__add_help_tabs__help_sidebar',
+					$this->{$config['help_sidebar']}()
+				);
+				$content .= $tour_buttons; //add help tour buttons.
+				//do we have any help tours setup?  Cause if we do we want to add the buttons
+				$this->_current_screen->set_help_sidebar($content);
+			}
+			//if we DON'T have config help sidebar and there ARE tour buttons then we'll just add the tour buttons to the sidebar.
+			if (! isset($config['help_sidebar']) && ! empty($tour_buttons)) {
+				$this->_current_screen->set_help_sidebar($tour_buttons);
+			}
+			//handle if no help_tabs are set so the sidebar will still show for the help tour buttons
+			if (! isset($config['help_tabs']) && ! empty($tour_buttons)) {
+				$_ht['id']      = $this->page_slug;
+				$_ht['title']   = esc_html__('Help Tours', 'event_espresso');
+				$_ht['content'] = '<p>' . esc_html__(
+						'The buttons to the right allow you to start/restart any help tours available for this page',
+						'event_espresso'
+					) . '</p>';
+				$this->_current_screen->add_help_tab($_ht);
+			}
+			if (! isset($config['help_tabs'])) {
+				return;
+			} //no help tabs for this route
+			foreach ((array)$config['help_tabs'] as $tab_id => $cfg) {
+				//we're here so there ARE help tabs!
+				//make sure we've got what we need
+				if (! isset($cfg['title'])) {
+					throw new EE_Error(
+						esc_html__(
+							'The _page_config array is not set up properly for help tabs.  It is missing a title',
+							'event_espresso'
+						)
+					);
+				}
+				if (! isset($cfg['filename']) && ! isset($cfg['callback']) && ! isset($cfg['content'])) {
+					throw new EE_Error(
+						esc_html__(
+							'The _page_config array is not setup properly for help tabs. It is missing a either a filename reference, or a callback reference or a content reference so there is no way to know the content for the help tab',
+							'event_espresso'
+						)
+					);
+				}
+				//first priority goes to content.
+				if (! empty($cfg['content'])) {
+					$content = ! empty($cfg['content']) ? $cfg['content'] : null;
+					//second priority goes to filename
+				} elseif (! empty($cfg['filename'])) {
+					$file_path = $this->_get_dir() . '/help_tabs/' . $cfg['filename'] . '.help_tab.php';
+					//it's possible that the file is located on decaf route (and above sets up for caf route, if this is the case then lets check decaf route too)
+					$file_path = ! is_readable($file_path) ? EE_ADMIN_PAGES
+															 . basename($this->_get_dir())
+															 . '/help_tabs/'
+															 . $cfg['filename']
+															 . '.help_tab.php' : $file_path;
+					//if file is STILL not readable then let's do a EE_Error so its more graceful than a fatal error.
+					if (! isset($cfg['callback']) && ! is_readable($file_path)) {
+						EE_Error::add_error(
+							sprintf(
+								esc_html__(
+									'The filename given for the help tab %s is not a valid file and there is no other configuration for the tab content.  Please check that the string you set for the help tab on this route (%s) is the correct spelling.  The file should be in %s',
+									'event_espresso'
+								),
+								$tab_id,
+								key($config),
+								$file_path
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+						return;
+					}
+					$template_args['admin_page_obj'] = $this;
+					$content = EEH_Template::display_template(
+						$file_path,
+						$template_args,
+						true
+					);
+				} else {
+					$content = '';
+				}
+				//check if callback is valid
+				if (
+					empty($content) && (
+						! isset($cfg['callback']) || ! method_exists($this, $cfg['callback'])
+					)
+				) {
+					EE_Error::add_error(
+						sprintf(
+							esc_html__(
+								'The callback given for a %s help tab on this page does not content OR a corresponding method for generating the content.  Check the spelling or make sure the method is present.',
+								'event_espresso'
+							),
+							$cfg['title']
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return;
+				}
+				//setup config array for help tab method
+				$id  = $this->page_slug . '-' . $this->_req_action . '-' . $tab_id;
+				$_ht = array(
+					'id'       => $id,
+					'title'    => $cfg['title'],
+					'callback' => isset($cfg['callback']) && empty($content) ? array($this, $cfg['callback']) : null,
+					'content'  => $content,
+				);
+				$this->_current_screen->add_help_tab($_ht);
+			}
+		}
+	}
+
+
+
+	/**
+	 * This basically checks loaded $_page_config property to see if there are any help_tours defined.  "help_tours" is
+	 * an array with properties for setting up usage of the joyride plugin
+	 *
+	 * @link   http://zurb.com/playground/jquery-joyride-feature-tour-plugin
+	 * @see    instructions regarding the format and construction of the "help_tour" array element is found in the
+	 *         _set_page_config() comments
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _add_help_tour()
+	{
+		$tours            = array();
+		$this->_help_tour = array();
+		//exit early if help tours are turned off globally
+		if ((defined('EE_DISABLE_HELP_TOURS') && EE_DISABLE_HELP_TOURS)
+			|| ! EE_Registry::instance()->CFG->admin->help_tour_activation
+		) {
+			return;
+		}
+		//loop through _page_config to find any help_tour defined
+		foreach ($this->_page_config as $route => $config) {
+			//we're only going to set things up for this route
+			if ($route !== $this->_req_action) {
+				continue;
+			}
+			if (isset($config['help_tour'])) {
+				foreach ($config['help_tour'] as $tour) {
+					$file_path = $this->_get_dir() . '/help_tours/' . $tour . '.class.php';
+					// let's see if we can get that file...
+					// if not its possible this is a decaf route not set in caffeinated
+					// so lets try and get the caffeinated equivalent
+					$file_path = ! is_readable($file_path) ? EE_ADMIN_PAGES
+															 . basename($this->_get_dir())
+															 . '/help_tours/'
+															 . $tour
+															 . '.class.php' : $file_path;
+					//if file is STILL not readable then let's do a EE_Error so its more graceful than a fatal error.
+					if (! is_readable($file_path)) {
+						EE_Error::add_error(
+							sprintf(
+								esc_html__(
+									'The file path given for the help tour (%s) is not a valid path.  Please check that the string you set for the help tour on this route (%s) is the correct spelling',
+									'event_espresso'
+								),
+								$file_path,
+								$tour
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+						return;
+					}
+					require_once $file_path;
+					if (! class_exists($tour)) {
+						$error_msg[] = sprintf(
+							esc_html__('Something went wrong with loading the %s Help Tour Class.', 'event_espresso'),
+							$tour
+						);
+						$error_msg[] = $error_msg[0] . "\r\n" . sprintf(
+								esc_html__(
+									'There is no class in place for the %s help tour.%s Make sure you have <strong>%s</strong> defined in the "help_tour" array for the %s route of the % admin page.',
+									'event_espresso'
+								),
+								$tour,
+								'<br />',
+								$tour,
+								$this->_req_action,
+								get_class($this)
+							);
+						throw new EE_Error(implode('||', $error_msg));
+					}
+					$tour_obj                   = new $tour($this->_is_caf);
+					$tours[]                    = $tour_obj;
+					$this->_help_tour[$route][] = EEH_Template::help_tour_stops_generator($tour_obj);
+				}
+				//let's inject the end tour stop element common to all pages... this will only get seen once per machine.
+				$end_stop_tour              = new EE_Help_Tour_final_stop($this->_is_caf);
+				$tours[]                    = $end_stop_tour;
+				$this->_help_tour[$route][] = EEH_Template::help_tour_stops_generator($end_stop_tour);
+			}
+		}
+		if (! empty($tours)) {
+			$this->_help_tour['tours'] = $tours;
+		}
+		// that's it!  Now that the $_help_tours property is set (or not)
+		// the scripts and html should be taken care of automatically.
+	}
+
+
+
+	/**
+	 * This simply sets up any qtips that have been defined in the page config
+	 *
+	 * @return void
+	 */
+	protected function _add_qtips()
+	{
+		if (isset($this->_route_config['qtips'])) {
+			$qtips = (array)$this->_route_config['qtips'];
+			//load qtip loader
+			$path = array(
+				$this->_get_dir() . '/qtips/',
+				EE_ADMIN_PAGES . basename($this->_get_dir()) . '/qtips/',
+			);
+			EEH_Qtip_Loader::instance()->register($qtips, $path);
+		}
+	}
+
+
+
+	/**
+	 * _set_nav_tabs
+	 * This sets up the nav tabs from the page_routes array.  This method can be overwritten by child classes if you
+	 * wish to add additional tabs or modify accordingly.
+	 *
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	protected function _set_nav_tabs()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$i = 0;
+		foreach ($this->_page_config as $slug => $config) {
+			if (
+				! is_array($config)
+				|| (
+					is_array($config)
+					&& (
+						(isset($config['nav']) && ! $config['nav'])
+						|| ! isset($config['nav'])
+					)
+				)
+			) {
+				continue;
+			}
+			//no nav tab for this config
+			//check for persistent flag
+			if ($slug !== $this->_req_action && isset($config['nav']['persistent']) && ! $config['nav']['persistent']) {
+				// nav tab is only to appear when route requested.
+				continue;
+			}
+			if (! $this->check_user_access($slug, true)) {
+				// no nav tab because current user does not have access.
+				continue;
+			}
+			$css_class              = isset($config['css_class']) ? $config['css_class'] . ' ' : '';
+			$this->_nav_tabs[$slug] = array(
+				'url'       => isset($config['nav']['url'])
+					? $config['nav']['url']
+					: self::add_query_args_and_nonce(
+						array('action' => $slug),
+						$this->_admin_base_url
+					),
+				'link_text' => isset($config['nav']['label'])
+					? $config['nav']['label']
+					: ucwords(
+						str_replace('_', ' ', $slug)
+					),
+				'css_class' => $this->_req_action === $slug ? $css_class . 'nav-tab-active' : $css_class,
+				'order'     => isset($config['nav']['order']) ? $config['nav']['order'] : $i,
+			);
+			$i++;
+		}
+		//if $this->_nav_tabs is empty then lets set the default
+		if (empty($this->_nav_tabs)) {
+			$this->_nav_tabs[$this->_default_nav_tab_name] = array(
+				'url'       => $this->_admin_base_url,
+				'link_text' => ucwords(str_replace('_', ' ', $this->_default_nav_tab_name)),
+				'css_class' => 'nav-tab-active',
+				'order'     => 10,
+			);
+		}
+		//now let's sort the tabs according to order
+		usort($this->_nav_tabs, array($this, '_sort_nav_tabs'));
+	}
+
+
+
+	/**
+	 * _set_current_labels
+	 * This method modifies the _labels property with any optional specific labels indicated in the _page_routes
+	 * property array
+	 *
+	 * @return void
+	 */
+	private function _set_current_labels()
+	{
+		if (is_array($this->_route_config) && isset($this->_route_config['labels'])) {
+			foreach ($this->_route_config['labels'] as $label => $text) {
+				if (is_array($text)) {
+					foreach ($text as $sublabel => $subtext) {
+						$this->_labels[$label][$sublabel] = $subtext;
+					}
+				} else {
+					$this->_labels[$label] = $text;
+				}
+			}
+		}
+	}
+
+
+
+	/**
+	 *        verifies user access for this admin page
+	 *
+	 * @param string $route_to_check if present then the capability for the route matching this string is checked.
+	 * @param bool   $verify_only    Default is FALSE which means if user check fails then wp_die().  Otherwise just
+	 *                               return false if verify fail.
+	 * @return bool
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function check_user_access($route_to_check = '', $verify_only = false)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$route_to_check = empty($route_to_check) ? $this->_req_action : $route_to_check;
+		$capability     = ! empty($route_to_check) && isset($this->_page_routes[$route_to_check])
+						  && is_array(
+							  $this->_page_routes[$route_to_check]
+						  )
+						  && ! empty($this->_page_routes[$route_to_check]['capability'])
+			? $this->_page_routes[$route_to_check]['capability'] : null;
+		if (empty($capability) && empty($route_to_check)) {
+			$capability = is_array($this->_route) && empty($this->_route['capability']) ? 'manage_options'
+				: $this->_route['capability'];
+		} else {
+			$capability = empty($capability) ? 'manage_options' : $capability;
+		}
+		$id = is_array($this->_route) && ! empty($this->_route['obj_id']) ? $this->_route['obj_id'] : 0;
+		if (
+			! defined('DOING_AJAX')
+			&& (
+				! function_exists('is_admin')
+				|| ! EE_Registry::instance()->CAP->current_user_can(
+					$capability,
+					$this->page_slug
+					. '_'
+					. $route_to_check,
+					$id
+				)
+			)
+		) {
+			if ($verify_only) {
+				return false;
+			}
+			if (is_user_logged_in()) {
+				wp_die(__('You do not have access to this route.', 'event_espresso'));
+			} else {
+				return false;
+			}
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * admin_init_global
+	 * This runs all the code that we want executed within the WP admin_init hook.
+	 * This method executes for ALL EE Admin pages.
+	 *
+	 * @return void
+	 */
+	public function admin_init_global()
+	{
+	}
+
+
+
+	/**
+	 * wp_loaded_global
+	 * This runs all the code that we want executed within the WP wp_loaded hook.  This method is optional for an
+	 * EE_Admin page and will execute on every EE Admin Page load
+	 *
+	 * @return void
+	 */
+	public function wp_loaded()
+	{
+	}
+
+
+
+	/**
+	 * admin_notices
+	 * Anything triggered by the 'admin_notices' WP hook should be put in here.  This particular method will apply on
+	 * ALL EE_Admin pages.
+	 *
+	 * @return void
+	 */
+	public function admin_notices_global()
+	{
+		$this->_display_no_javascript_warning();
+		$this->_display_espresso_notices();
+	}
+
+
+
+	public function network_admin_notices_global()
+	{
+		$this->_display_no_javascript_warning();
+		$this->_display_espresso_notices();
+	}
+
+
+
+	/**
+	 * admin_footer_scripts_global
+	 * Anything triggered by the 'admin_print_footer_scripts' WP hook should be put in here. This particular method
+	 * will apply on ALL EE_Admin pages.
+	 *
+	 * @return void
+	 */
+	public function admin_footer_scripts_global()
+	{
+		$this->_add_admin_page_ajax_loading_img();
+		$this->_add_admin_page_overlay();
+		//if metaboxes are present we need to add the nonce field
+		if (
+			 isset($this->_route_config['metaboxes'])
+			 || isset($this->_route_config['list_table'])
+			 || (isset($this->_route_config['has_metaboxes']) && $this->_route_config['has_metaboxes'])
+		) {
+			wp_nonce_field('closedpostboxes', 'closedpostboxesnonce', false);
+			wp_nonce_field('meta-box-order', 'meta-box-order-nonce', false);
+		}
+	}
+
+
+
+	/**
+	 * admin_footer_global
+	 * Anything triggered by the wp 'admin_footer' wp hook should be put in here. This particular method will apply on
+	 * ALL EE_Admin Pages.
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function admin_footer_global()
+	{
+		//dialog container for dialog helper
+		$d_cont = '<div class="ee-admin-dialog-container auto-hide hidden">' . "\n";
+		$d_cont .= '<div class="ee-notices"></div>';
+		$d_cont .= '<div class="ee-admin-dialog-container-inner-content"></div>';
+		$d_cont .= '</div>';
+		echo $d_cont;
+		//help tour stuff?
+		if (isset($this->_help_tour[$this->_req_action])) {
+			echo implode('<br />', $this->_help_tour[$this->_req_action]);
+		}
+		//current set timezone for timezone js
+		echo '<span id="current_timezone" class="hidden">' . EEH_DTT_Helper::get_timezone() . '</span>';
+	}
+
+
+
+	/**
+	 * This function sees if there is a method for help popup content existing for the given route.  If there is then
+	 * we'll use the retrieved array to output the content using the template. For child classes: If you want to have
+	 * help popups then in your templates or your content you set "triggers" for the content using the
+	 * "_set_help_trigger('help_trigger_id')" where "help_trigger_id" is what you will use later in your custom method
+	 * for the help popup content on that page. Then in your Child_Admin_Page class you need to define a help popup
+	 * method for the content in the format "_help_popup_content_{route_name}()"  So if you are setting help content
+	 * for the
+	 * 'edit_event' route you should have a method named "_help_popup_content_edit_route". In your defined
+	 * "help_popup_content_..." method.  You must prepare and return an array in the following format array(
+	 *    'help_trigger_id' => array(
+	 *        'title' => esc_html__('localized title for popup', 'event_espresso'),
+	 *        'content' => esc_html__('localized content for popup', 'event_espresso')
+	 *    )
+	 * );
+	 * Then the EE_Admin_Parent will take care of making sure that is setup properly on the correct route.
+	 *
+	 * @param array $help_array
+	 * @param bool  $display
+	 * @return string content
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	protected function _set_help_popup_content($help_array = array(), $display = false)
+	{
+		$content       = '';
+		$help_array    = empty($help_array) ? $this->_get_help_content() : $help_array;
+		//loop through the array and setup content
+		foreach ($help_array as $trigger => $help) {
+			//make sure the array is setup properly
+			if (! isset($help['title']) || ! isset($help['content'])) {
+				throw new EE_Error(
+					esc_html__(
+						'Does not look like the popup content array has been setup correctly.  Might want to double check that.  Read the comments for the _get_help_popup_content method found in "EE_Admin_Page" class',
+						'event_espresso'
+					)
+				);
+			}
+			//we're good so let'd setup the template vars and then assign parsed template content to our content.
+			$template_args = array(
+				'help_popup_id'      => $trigger,
+				'help_popup_title'   => $help['title'],
+				'help_popup_content' => $help['content'],
+			);
+			$content       .= EEH_Template::display_template(
+				EE_ADMIN_TEMPLATE . 'admin_help_popup.template.php',
+				$template_args,
+				true
+			);
+		}
+		if ($display) {
+			echo $content;
+			return '';
+		}
+		return $content;
+	}
+
+
+
+	/**
+	 * All this does is retrieve the help content array if set by the EE_Admin_Page child
+	 *
+	 * @return array properly formatted array for help popup content
+	 * @throws EE_Error
+	 */
+	private function _get_help_content()
+	{
+		//what is the method we're looking for?
+		$method_name = '_help_popup_content_' . $this->_req_action;
+		//if method doesn't exist let's get out.
+		if (! method_exists($this, $method_name)) {
+			return array();
+		}
+		//k we're good to go let's retrieve the help array
+		$help_array = call_user_func(array($this, $method_name));
+		//make sure we've got an array!
+		if (! is_array($help_array)) {
+			throw new EE_Error(
+				esc_html__(
+					'Something went wrong with help popup content generation. Expecting an array and well, this ain\'t no array bub.',
+					'event_espresso'
+				)
+			);
+		}
+		return $help_array;
+	}
+
+
+
+	/**
+	 * EE Admin Pages can use this to set a properly formatted trigger for a help popup.
+	 * By default the trigger html is printed.  Otherwise it can be returned if the $display flag is set "false"
+	 * See comments made on the _set_help_content method for understanding other parts to the help popup tool.
+	 *
+	 * @param string  $trigger_id reference for retrieving the trigger content for the popup
+	 * @param boolean $display    if false then we return the trigger string
+	 * @param array   $dimensions an array of dimensions for the box (array(h,w))
+	 * @return string
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	protected function _set_help_trigger($trigger_id, $display = true, $dimensions = array('400', '640'))
+	{
+		if (defined('DOING_AJAX')) {
+			return '';
+		}
+		//let's check and see if there is any content set for this popup.  If there isn't then we'll include a default title and content so that developers know something needs to be corrected
+		$help_array   = $this->_get_help_content();
+		$help_content = '';
+		if (empty($help_array) || ! isset($help_array[$trigger_id])) {
+			$help_array[$trigger_id] = array(
+				'title'   => esc_html__('Missing Content', 'event_espresso'),
+				'content' => esc_html__(
+					'A trigger has been set that doesn\'t have any corresponding content. Make sure you have set the help content. (see the "_set_help_popup_content" method in the EE_Admin_Page for instructions.)',
+					'event_espresso'
+				),
+			);
+			$help_content            = $this->_set_help_popup_content($help_array, false);
+		}
+		//let's setup the trigger
+		$content = '<a class="ee-dialog" href="?height='
+				   . $dimensions[0]
+				   . '&width='
+				   . $dimensions[1]
+				   . '&inlineId='
+				   . $trigger_id
+				   . '" target="_blank"><span class="question ee-help-popup-question"></span></a>';
+		$content .= $help_content;
+		if ($display) {
+			echo $content;
+			return  '';
+		}
+		return $content;
+	}
+
+
+
+	/**
+	 * _add_global_screen_options
+	 * Add any extra wp_screen_options within this method using built-in WP functions/methods for doing so.
+	 * This particular method will add_screen_options on ALL EE_Admin Pages
+	 *
+	 * @link   http://chrismarslender.com/wp-tutorials/wordpress-screen-options-tutorial/
+	 *         see also WP_Screen object documents...
+	 * @link   http://codex.wordpress.org/Class_Reference/WP_Screen
+	 * @abstract
+	 * @return void
+	 */
+	private function _add_global_screen_options()
+	{
+	}
+
+
+
+	/**
+	 * _add_global_feature_pointers
+	 * This method is used for implementing any "feature pointers" (using built-in WP styling js).
+	 * This particular method will implement feature pointers for ALL EE_Admin pages.
+	 * Note: this is just a placeholder for now.  Implementation will come down the road
+	 *
+	 * @see    WP_Internal_Pointers class in wp-admin/includes/template.php for example (its a final class so can't be
+	 *         extended) also see:
+	 * @link   http://eamann.com/tech/wordpress-portland/
+	 * @abstract
+	 * @return void
+	 */
+	private function _add_global_feature_pointers()
+	{
+	}
+
+
+
+	/**
+	 * load_global_scripts_styles
+	 * The scripts and styles enqueued in here will be loaded on every EE Admin page
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function load_global_scripts_styles()
+	{
+		/** STYLES **/
+		// add debugging styles
+		if (WP_DEBUG) {
+			add_action('admin_head', array($this, 'add_xdebug_style'));
+		}
+		// register all styles
+		wp_register_style(
+			'espresso-ui-theme',
+			EE_GLOBAL_ASSETS_URL . 'css/espresso-ui-theme/jquery-ui-1.10.3.custom.min.css',
+			array(),
+			EVENT_ESPRESSO_VERSION
+		);
+		wp_register_style('ee-admin-css', EE_ADMIN_URL . 'assets/ee-admin-page.css', array(), EVENT_ESPRESSO_VERSION);
+		//helpers styles
+		wp_register_style(
+			'ee-text-links',
+			EE_PLUGIN_DIR_URL . 'core/helpers/assets/ee_text_list_helper.css',
+			array(),
+			EVENT_ESPRESSO_VERSION
+		);
+		/** SCRIPTS **/
+		//register all scripts
+		wp_register_script(
+			'ee-dialog',
+			EE_ADMIN_URL . 'assets/ee-dialog-helper.js',
+			array('jquery', 'jquery-ui-draggable'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_register_script(
+			'ee_admin_js',
+			EE_ADMIN_URL . 'assets/ee-admin-page.js',
+			array('espresso_core', 'ee-parse-uri', 'ee-dialog'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_register_script(
+			'jquery-ui-timepicker-addon',
+			EE_GLOBAL_ASSETS_URL . 'scripts/jquery-ui-timepicker-addon.js',
+			array('jquery-ui-datepicker', 'jquery-ui-slider'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		add_filter('FHEE_load_joyride', '__return_true');
+		//script for sorting tables
+		wp_register_script(
+			'espresso_ajax_table_sorting',
+			EE_ADMIN_URL . 'assets/espresso_ajax_table_sorting.js',
+			array('ee_admin_js', 'jquery-ui-sortable'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		//script for parsing uri's
+		wp_register_script(
+			'ee-parse-uri',
+			EE_GLOBAL_ASSETS_URL . 'scripts/parseuri.js',
+			array(),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		//and parsing associative serialized form elements
+		wp_register_script(
+			'ee-serialize-full-array',
+			EE_GLOBAL_ASSETS_URL . 'scripts/jquery.serializefullarray.js',
+			array('jquery'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		//helpers scripts
+		wp_register_script(
+			'ee-text-links',
+			EE_PLUGIN_DIR_URL . 'core/helpers/assets/ee_text_list_helper.js',
+			array('jquery'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_register_script(
+			'ee-moment-core',
+			EE_THIRD_PARTY_URL . 'moment/moment-with-locales.min.js',
+			array(),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_register_script(
+			'ee-moment',
+			EE_THIRD_PARTY_URL . 'moment/moment-timezone-with-data.min.js',
+			array('ee-moment-core'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_register_script(
+			'ee-datepicker',
+			EE_ADMIN_URL . 'assets/ee-datepicker.js',
+			array('jquery-ui-timepicker-addon', 'ee-moment'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		//google charts
+		wp_register_script(
+			'google-charts',
+			'https://www.gstatic.com/charts/loader.js',
+			array(),
+			EVENT_ESPRESSO_VERSION,
+			false
+		);
+		// ENQUEUE ALL BASICS BY DEFAULT
+		wp_enqueue_style('ee-admin-css');
+		wp_enqueue_script('ee_admin_js');
+		wp_enqueue_script('ee-accounting');
+		wp_enqueue_script('jquery-validate');
+		//taking care of metaboxes
+		if (
+			empty($this->_cpt_route)
+			&& (isset($this->_route_config['metaboxes']) || isset($this->_route_config['has_metaboxes']))
+		) {
+			wp_enqueue_script('dashboard');
+		}
+		// LOCALIZED DATA
+		//localize script for ajax lazy loading
+		$lazy_loader_container_ids = apply_filters(
+			'FHEE__EE_Admin_Page_Core__load_global_scripts_styles__loader_containers',
+			array('espresso_news_post_box_content')
+		);
+		wp_localize_script('ee_admin_js', 'eeLazyLoadingContainers', $lazy_loader_container_ids);
+		/**
+		 * help tour stuff
+		 */
+		if (! empty($this->_help_tour)) {
+			//register the js for kicking things off
+			wp_enqueue_script(
+				'ee-help-tour',
+				EE_ADMIN_URL . 'assets/ee-help-tour.js',
+				array('jquery-joyride'),
+				EVENT_ESPRESSO_VERSION,
+				true
+			);
+			$tours = array();
+			//setup tours for the js tour object
+			foreach ($this->_help_tour['tours'] as $tour) {
+				if ($tour instanceof EE_Help_Tour) {
+					$tours[] = array(
+						'id'      => $tour->get_slug(),
+						'options' => $tour->get_options(),
+					);
+				}
+			}
+			wp_localize_script('ee-help-tour', 'EE_HELP_TOUR', array('tours' => $tours));
+			//admin_footer_global will take care of making sure our help_tour skeleton gets printed via the info stored in $this->_help_tour
+		}
+	}
+
+
+
+	/**
+	 *        admin_footer_scripts_eei18n_js_strings
+	 *
+	 * @return        void
+	 */
+	public function admin_footer_scripts_eei18n_js_strings()
+	{
+		EE_Registry::$i18n_js_strings['ajax_url']       = WP_AJAX_URL;
+		EE_Registry::$i18n_js_strings['confirm_delete'] = esc_html__(
+			'Are you absolutely sure you want to delete this item?\nThis action will delete ALL DATA associated with this item!!!\nThis can NOT be undone!!!',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['January']        = esc_html__('January', 'event_espresso');
+		EE_Registry::$i18n_js_strings['February']       = esc_html__('February', 'event_espresso');
+		EE_Registry::$i18n_js_strings['March']          = esc_html__('March', 'event_espresso');
+		EE_Registry::$i18n_js_strings['April']          = esc_html__('April', 'event_espresso');
+		EE_Registry::$i18n_js_strings['May']            = esc_html__('May', 'event_espresso');
+		EE_Registry::$i18n_js_strings['June']           = esc_html__('June', 'event_espresso');
+		EE_Registry::$i18n_js_strings['July']           = esc_html__('July', 'event_espresso');
+		EE_Registry::$i18n_js_strings['August']         = esc_html__('August', 'event_espresso');
+		EE_Registry::$i18n_js_strings['September']      = esc_html__('September', 'event_espresso');
+		EE_Registry::$i18n_js_strings['October']        = esc_html__('October', 'event_espresso');
+		EE_Registry::$i18n_js_strings['November']       = esc_html__('November', 'event_espresso');
+		EE_Registry::$i18n_js_strings['December']       = esc_html__('December', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Jan']            = esc_html__('Jan', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Feb']            = esc_html__('Feb', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Mar']            = esc_html__('Mar', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Apr']            = esc_html__('Apr', 'event_espresso');
+		EE_Registry::$i18n_js_strings['May']            = esc_html__('May', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Jun']            = esc_html__('Jun', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Jul']            = esc_html__('Jul', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Aug']            = esc_html__('Aug', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Sep']            = esc_html__('Sep', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Oct']            = esc_html__('Oct', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Nov']            = esc_html__('Nov', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Dec']            = esc_html__('Dec', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Sunday']         = esc_html__('Sunday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Monday']         = esc_html__('Monday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Tuesday']        = esc_html__('Tuesday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Wednesday']      = esc_html__('Wednesday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Thursday']       = esc_html__('Thursday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Friday']         = esc_html__('Friday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Saturday']       = esc_html__('Saturday', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Sun']            = esc_html__('Sun', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Mon']            = esc_html__('Mon', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Tue']            = esc_html__('Tue', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Wed']            = esc_html__('Wed', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Thu']            = esc_html__('Thu', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Fri']            = esc_html__('Fri', 'event_espresso');
+		EE_Registry::$i18n_js_strings['Sat']            = esc_html__('Sat', 'event_espresso');
+	}
+
+
+
+	/**
+	 *        load enhanced xdebug styles for ppl with failing eyesight
+	 *
+	 * @return        void
+	 */
+	public function add_xdebug_style()
+	{
+		echo '<style>.xdebug-error { font-size:1.5em; }</style>';
+	}
+
+
+	/************************/
+	/** LIST TABLE METHODS **/
+	/************************/
+	/**
+	 * this sets up the list table if the current view requires it.
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _set_list_table()
+	{
+		//first is this a list_table view?
+		if (! isset($this->_route_config['list_table'])) {
+			return;
+		} //not a list_table view so get out.
+		// list table functions are per view specific (because some admin pages might have more than one list table!)
+		$list_table_view = '_set_list_table_views_' . $this->_req_action;
+		if (! method_exists($this, $list_table_view) || $this->{$list_table_view}() === false) {
+			//user error msg
+			$error_msg = esc_html__(
+				'An error occurred. The requested list table views could not be found.',
+				'event_espresso'
+			);
+			//developer error msg
+			$error_msg .= '||' . sprintf(
+					esc_html__(
+						'List table views for "%s" route could not be setup. Check that you have the corresponding method, "%s" set up for defining list_table_views for this route.',
+						'event_espresso'
+					),
+					$this->_req_action,
+					$list_table_view
+				);
+			throw new EE_Error($error_msg);
+		}
+		//let's provide the ability to filter the views per PAGE AND ROUTE, per PAGE, and globally
+		$this->_views = apply_filters(
+			'FHEE_list_table_views_' . $this->page_slug . '_' . $this->_req_action,
+			$this->_views
+		);
+		$this->_views = apply_filters('FHEE_list_table_views_' . $this->page_slug, $this->_views);
+		$this->_views = apply_filters('FHEE_list_table_views', $this->_views);
+		$this->_set_list_table_view();
+		$this->_set_list_table_object();
+	}
+
+
+
+	/**
+	 * set current view for List Table
+	 *
+	 * @return void
+	 */
+	protected function _set_list_table_view()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		// looking at active items or dumpster diving ?
+		if (! isset($this->_req_data['status']) || ! array_key_exists($this->_req_data['status'], $this->_views)) {
+			$this->_view = isset($this->_views['in_use']) ? 'in_use' : 'all';
+		} else {
+			$this->_view = sanitize_key($this->_req_data['status']);
+		}
+	}
+
+
+	/**
+	 * _set_list_table_object
+	 * WP_List_Table objects need to be loaded fairly early so automatic stuff WP does is taken care of.
+	 *
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws EE_Error
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _set_list_table_object()
+	{
+		if (isset($this->_route_config['list_table'])) {
+			if (! class_exists($this->_route_config['list_table'])) {
+				throw new EE_Error(
+					sprintf(
+						esc_html__(
+							'The %s class defined for the list table does not exist.  Please check the spelling of the class ref in the $_page_config property on %s.',
+							'event_espresso'
+						),
+						$this->_route_config['list_table'],
+						get_class($this)
+					)
+				);
+			}
+			$this->_list_table_object = LoaderFactory::getLoader()->getShared(
+				$this->_route_config['list_table'],
+				array($this)
+			);
+		}
+	}
+
+
+
+	/**
+	 * get_list_table_view_RLs - get it? View RL ?? VU-RL???  URL ??
+	 *
+	 * @param array $extra_query_args                     Optional. An array of extra query args to add to the generated
+	 *                                                    urls.  The array should be indexed by the view it is being
+	 *                                                    added to.
+	 * @return array
+	 */
+	public function get_list_table_view_RLs($extra_query_args = array())
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		if (empty($this->_views)) {
+			$this->_views = array();
+		}
+		// cycle thru views
+		foreach ($this->_views as $key => $view) {
+			$query_args = array();
+			// check for current view
+			$this->_views[$key]['class']               = $this->_view === $view['slug'] ? 'current' : '';
+			$query_args['action']                      = $this->_req_action;
+			$query_args[$this->_req_action . '_nonce'] = wp_create_nonce($query_args['action'] . '_nonce');
+			$query_args['status']                      = $view['slug'];
+			//merge any other arguments sent in.
+			if (isset($extra_query_args[$view['slug']])) {
+				$query_args = array_merge($query_args, $extra_query_args[$view['slug']]);
+			}
+			$this->_views[$key]['url'] = EE_Admin_Page::add_query_args_and_nonce($query_args, $this->_admin_base_url);
+		}
+		return $this->_views;
+	}
+
+
+
+	/**
+	 * _entries_per_page_dropdown
+	 * generates a drop down box for selecting the number of visible rows in an admin page list table
+	 *
+	 * @todo   : Note: ideally this should be added to the screen options dropdown as that would be consistent with how
+	 *         WP does it.
+	 * @param int $max_entries total number of rows in the table
+	 * @return string
+	 */
+	protected function _entries_per_page_dropdown($max_entries = 0)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$values   = array(10, 25, 50, 100);
+		$per_page = (! empty($this->_req_data['per_page'])) ? absint($this->_req_data['per_page']) : 10;
+		if ($max_entries) {
+			$values[] = $max_entries;
+			sort($values);
+		}
+		$entries_per_page_dropdown = '
 			<div id="entries-per-page-dv" class="alignleft actions">
 				<label class="hide-if-no-js">
 					Show
 					<select id="entries-per-page-slct" name="entries-per-page-slct">';
-        foreach ($values as $value) {
-            if ($value < $max_entries) {
-                $selected                  = $value === $per_page ? ' selected="' . $per_page . '"' : '';
-                $entries_per_page_dropdown .= '
+		foreach ($values as $value) {
+			if ($value < $max_entries) {
+				$selected                  = $value === $per_page ? ' selected="' . $per_page . '"' : '';
+				$entries_per_page_dropdown .= '
 						<option value="' . $value . '"' . $selected . '>' . $value . '&nbsp;&nbsp;</option>';
-            }
-        }
-        $selected                  = $max_entries === $per_page ? ' selected="' . $per_page . '"' : '';
-        $entries_per_page_dropdown .= '
+			}
+		}
+		$selected                  = $max_entries === $per_page ? ' selected="' . $per_page . '"' : '';
+		$entries_per_page_dropdown .= '
 						<option value="' . $max_entries . '"' . $selected . '>All&nbsp;&nbsp;</option>';
-        $entries_per_page_dropdown .= '
+		$entries_per_page_dropdown .= '
 					</select>
 					entries
 				</label>
 				<input id="entries-per-page-btn" class="button-secondary" type="submit" value="Go" >
 			</div>
 		';
-        return $entries_per_page_dropdown;
-    }
-
-
-
-    /**
-     *        _set_search_attributes
-     *
-     * @return        void
-     */
-    public function _set_search_attributes()
-    {
-        $this->_template_args['search']['btn_label'] = sprintf(
-            esc_html__('Search %s', 'event_espresso'),
-            empty($this->_search_btn_label) ? $this->page_label
-                : $this->_search_btn_label
-        );
-        $this->_template_args['search']['callback']  = 'search_' . $this->page_slug;
-    }
-
-
-
-    /*** END LIST TABLE METHODS **/
-
-
-
-    /**
-     * _add_registered_metaboxes
-     *  this loads any registered metaboxes via the 'metaboxes' index in the _page_config property array.
-     *
-     * @link   http://codex.wordpress.org/Function_Reference/add_meta_box
-     * @return void
-     * @throws EE_Error
-     */
-    private function _add_registered_meta_boxes()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        //we only add meta boxes if the page_route calls for it
-        if (is_array($this->_route_config) && isset($this->_route_config['metaboxes'])
-            && is_array(
-                $this->_route_config['metaboxes']
-            )
-        ) {
-            // this simply loops through the callbacks provided
-            // and checks if there is a corresponding callback registered by the child
-            // if there is then we go ahead and process the metabox loader.
-            foreach ($this->_route_config['metaboxes'] as $metabox_callback) {
-                // first check for Closures
-                if ($metabox_callback instanceof Closure) {
-                    $result = $metabox_callback();
-                } elseif (is_array($metabox_callback) && isset($metabox_callback[0], $metabox_callback[1])) {
-                    $result = call_user_func(array($metabox_callback[0], $metabox_callback[1]));
-                } else {
-                    $result = call_user_func(array($this, &$metabox_callback));
-                }
-                if ($result === false) {
-                    // user error msg
-                    $error_msg = esc_html__(
-                            'An error occurred. The  requested metabox could not be found.',
-                            'event_espresso'
-                    );
-                    // developer error msg
-                    $error_msg .= '||' . sprintf(
-                            esc_html__(
-                                'The metabox with the string "%s" could not be called. Check that the spelling for method names and actions in the "_page_config[\'metaboxes\']" array are all correct.',
-                                'event_espresso'
-                            ),
-                            $metabox_callback
-                        );
-                    throw new EE_Error($error_msg);
-                }
-            }
-        }
-    }
-
-
-
-    /**
-     * _add_screen_columns
-     * This will check the _page_config array and if there is "columns" key index indicated, we'll set the template as
-     * the dynamic column template and we'll setup the column options for the page.
-     *
-     * @return void
-     */
-    private function _add_screen_columns()
-    {
-        if (
-            is_array($this->_route_config)
-            && isset($this->_route_config['columns'])
-            && is_array($this->_route_config['columns'])
-            && count($this->_route_config['columns']) === 2
-        ) {
-            add_screen_option(
-                'layout_columns',
-                array(
-                    'max'     => (int)$this->_route_config['columns'][0],
-                    'default' => (int)$this->_route_config['columns'][1],
-                )
-            );
-            $this->_template_args['num_columns']                 = $this->_route_config['columns'][0];
-            $screen_id                                           = $this->_current_screen->id;
-            $screen_columns                                      = (int)get_user_option("screen_layout_{$screen_id}");
-            $total_columns                                       = ! empty($screen_columns)
-                ? $screen_columns
-                : $this->_route_config['columns'][1];
-            $this->_template_args['current_screen_widget_class'] = 'columns-' . $total_columns;
-            $this->_template_args['current_page']                = $this->_wp_page_slug;
-            $this->_template_args['screen']                      = $this->_current_screen;
-            $this->_column_template_path                         = EE_ADMIN_TEMPLATE
-                                                                   . 'admin_details_metabox_column_wrapper.template.php';
-            // finally if we don't have has_metaboxes set in the route config
-            // let's make sure it IS set other wise the necessary hidden fields for this won't be loaded.
-            $this->_route_config['has_metaboxes'] = true;
-        }
-    }
-
-
-
-    /** GLOBALLY AVAILABLE METABOXES **/
-
-
-    /**
-     * In this section we put any globally available EE metaboxes for all EE Admin pages.  They are called by simply
-     * referencing the callback in the _page_config array property.  This way you can be very specific about what pages
-     * these get loaded on.
-     */
-    private function _espresso_news_post_box()
-    {
-        $news_box_title = apply_filters(
-            'FHEE__EE_Admin_Page___espresso_news_post_box__news_box_title',
-            esc_html__('New @ Event Espresso', 'event_espresso')
-        );
-        add_meta_box(
-            'espresso_news_post_box',
-            $news_box_title,
-            array(
-                $this,
-                'espresso_news_post_box',
-            ),
-            $this->_wp_page_slug,
-            'side'
-        );
-    }
-
-
-
-    /**
-     * Code for setting up espresso ratings request metabox.
-     */
-    protected function _espresso_ratings_request()
-    {
-        if (! apply_filters('FHEE_show_ratings_request_meta_box', true)) {
-            return;
-        }
-        $ratings_box_title = apply_filters(
-            'FHEE__EE_Admin_Page___espresso_news_post_box__news_box_title',
-            esc_html__('Keep Event Espresso Decaf Free', 'event_espresso')
-        );
-        add_meta_box(
-            'espresso_ratings_request',
-            $ratings_box_title,
-            array(
-                $this,
-                'espresso_ratings_request',
-            ),
-            $this->_wp_page_slug,
-            'side'
-        );
-    }
-
-
-
-    /**
-     * Code for setting up espresso ratings request metabox content.
-     *
-     * @throws DomainException
-     */
-    public function espresso_ratings_request()
-    {
-        EEH_Template::display_template(
-            EE_ADMIN_TEMPLATE . 'espresso_ratings_request_content.template.php',
-                array()
-        );
-    }
-
-
-
-    public static function cached_rss_display($rss_id, $url)
-    {
-        $loading    = '<p class="widget-loading hide-if-no-js">'
-                      . __('Loading&#8230;')
-                      . '</p><p class="hide-if-js">'
-                      . esc_html__('This widget requires JavaScript.')
-                      . '</p>';
-        $pre        = '<div class="espresso-rss-display">' . "\n\t";
-        $pre        .= '<span id="' . $rss_id . '_url" class="hidden">' . $url . '</span>';
-        $post       = '</div>' . "\n";
-        $cache_key  = 'ee_rss_' . md5($rss_id);
-        $output = get_transient($cache_key);
-        if ($output !== false) {
-            echo $pre . $output . $post;
-            return true;
-        }
-        if (! (defined('DOING_AJAX') && DOING_AJAX)) {
-            echo $pre . $loading . $post;
-            return false;
-        }
-        ob_start();
-        wp_widget_rss_output($url, array('show_date' => 0, 'items' => 5));
-        set_transient($cache_key, ob_get_flush(), 12 * HOUR_IN_SECONDS);
-        return true;
-    }
-
-
-
-    public function espresso_news_post_box()
-    {
-        ?>
+		return $entries_per_page_dropdown;
+	}
+
+
+
+	/**
+	 *        _set_search_attributes
+	 *
+	 * @return        void
+	 */
+	public function _set_search_attributes()
+	{
+		$this->_template_args['search']['btn_label'] = sprintf(
+			esc_html__('Search %s', 'event_espresso'),
+			empty($this->_search_btn_label) ? $this->page_label
+				: $this->_search_btn_label
+		);
+		$this->_template_args['search']['callback']  = 'search_' . $this->page_slug;
+	}
+
+
+
+	/*** END LIST TABLE METHODS **/
+
+
+
+	/**
+	 * _add_registered_metaboxes
+	 *  this loads any registered metaboxes via the 'metaboxes' index in the _page_config property array.
+	 *
+	 * @link   http://codex.wordpress.org/Function_Reference/add_meta_box
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private function _add_registered_meta_boxes()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		//we only add meta boxes if the page_route calls for it
+		if (is_array($this->_route_config) && isset($this->_route_config['metaboxes'])
+			&& is_array(
+				$this->_route_config['metaboxes']
+			)
+		) {
+			// this simply loops through the callbacks provided
+			// and checks if there is a corresponding callback registered by the child
+			// if there is then we go ahead and process the metabox loader.
+			foreach ($this->_route_config['metaboxes'] as $metabox_callback) {
+				// first check for Closures
+				if ($metabox_callback instanceof Closure) {
+					$result = $metabox_callback();
+				} elseif (is_array($metabox_callback) && isset($metabox_callback[0], $metabox_callback[1])) {
+					$result = call_user_func(array($metabox_callback[0], $metabox_callback[1]));
+				} else {
+					$result = call_user_func(array($this, &$metabox_callback));
+				}
+				if ($result === false) {
+					// user error msg
+					$error_msg = esc_html__(
+							'An error occurred. The  requested metabox could not be found.',
+							'event_espresso'
+					);
+					// developer error msg
+					$error_msg .= '||' . sprintf(
+							esc_html__(
+								'The metabox with the string "%s" could not be called. Check that the spelling for method names and actions in the "_page_config[\'metaboxes\']" array are all correct.',
+								'event_espresso'
+							),
+							$metabox_callback
+						);
+					throw new EE_Error($error_msg);
+				}
+			}
+		}
+	}
+
+
+
+	/**
+	 * _add_screen_columns
+	 * This will check the _page_config array and if there is "columns" key index indicated, we'll set the template as
+	 * the dynamic column template and we'll setup the column options for the page.
+	 *
+	 * @return void
+	 */
+	private function _add_screen_columns()
+	{
+		if (
+			is_array($this->_route_config)
+			&& isset($this->_route_config['columns'])
+			&& is_array($this->_route_config['columns'])
+			&& count($this->_route_config['columns']) === 2
+		) {
+			add_screen_option(
+				'layout_columns',
+				array(
+					'max'     => (int)$this->_route_config['columns'][0],
+					'default' => (int)$this->_route_config['columns'][1],
+				)
+			);
+			$this->_template_args['num_columns']                 = $this->_route_config['columns'][0];
+			$screen_id                                           = $this->_current_screen->id;
+			$screen_columns                                      = (int)get_user_option("screen_layout_{$screen_id}");
+			$total_columns                                       = ! empty($screen_columns)
+				? $screen_columns
+				: $this->_route_config['columns'][1];
+			$this->_template_args['current_screen_widget_class'] = 'columns-' . $total_columns;
+			$this->_template_args['current_page']                = $this->_wp_page_slug;
+			$this->_template_args['screen']                      = $this->_current_screen;
+			$this->_column_template_path                         = EE_ADMIN_TEMPLATE
+																   . 'admin_details_metabox_column_wrapper.template.php';
+			// finally if we don't have has_metaboxes set in the route config
+			// let's make sure it IS set other wise the necessary hidden fields for this won't be loaded.
+			$this->_route_config['has_metaboxes'] = true;
+		}
+	}
+
+
+
+	/** GLOBALLY AVAILABLE METABOXES **/
+
+
+	/**
+	 * In this section we put any globally available EE metaboxes for all EE Admin pages.  They are called by simply
+	 * referencing the callback in the _page_config array property.  This way you can be very specific about what pages
+	 * these get loaded on.
+	 */
+	private function _espresso_news_post_box()
+	{
+		$news_box_title = apply_filters(
+			'FHEE__EE_Admin_Page___espresso_news_post_box__news_box_title',
+			esc_html__('New @ Event Espresso', 'event_espresso')
+		);
+		add_meta_box(
+			'espresso_news_post_box',
+			$news_box_title,
+			array(
+				$this,
+				'espresso_news_post_box',
+			),
+			$this->_wp_page_slug,
+			'side'
+		);
+	}
+
+
+
+	/**
+	 * Code for setting up espresso ratings request metabox.
+	 */
+	protected function _espresso_ratings_request()
+	{
+		if (! apply_filters('FHEE_show_ratings_request_meta_box', true)) {
+			return;
+		}
+		$ratings_box_title = apply_filters(
+			'FHEE__EE_Admin_Page___espresso_news_post_box__news_box_title',
+			esc_html__('Keep Event Espresso Decaf Free', 'event_espresso')
+		);
+		add_meta_box(
+			'espresso_ratings_request',
+			$ratings_box_title,
+			array(
+				$this,
+				'espresso_ratings_request',
+			),
+			$this->_wp_page_slug,
+			'side'
+		);
+	}
+
+
+
+	/**
+	 * Code for setting up espresso ratings request metabox content.
+	 *
+	 * @throws DomainException
+	 */
+	public function espresso_ratings_request()
+	{
+		EEH_Template::display_template(
+			EE_ADMIN_TEMPLATE . 'espresso_ratings_request_content.template.php',
+				array()
+		);
+	}
+
+
+
+	public static function cached_rss_display($rss_id, $url)
+	{
+		$loading    = '<p class="widget-loading hide-if-no-js">'
+					  . __('Loading&#8230;')
+					  . '</p><p class="hide-if-js">'
+					  . esc_html__('This widget requires JavaScript.')
+					  . '</p>';
+		$pre        = '<div class="espresso-rss-display">' . "\n\t";
+		$pre        .= '<span id="' . $rss_id . '_url" class="hidden">' . $url . '</span>';
+		$post       = '</div>' . "\n";
+		$cache_key  = 'ee_rss_' . md5($rss_id);
+		$output = get_transient($cache_key);
+		if ($output !== false) {
+			echo $pre . $output . $post;
+			return true;
+		}
+		if (! (defined('DOING_AJAX') && DOING_AJAX)) {
+			echo $pre . $loading . $post;
+			return false;
+		}
+		ob_start();
+		wp_widget_rss_output($url, array('show_date' => 0, 'items' => 5));
+		set_transient($cache_key, ob_get_flush(), 12 * HOUR_IN_SECONDS);
+		return true;
+	}
+
+
+
+	public function espresso_news_post_box()
+	{
+		?>
         <div class="padding">
             <div id="espresso_news_post_box_content" class="infolinks">
                 <?php
-                // Get RSS Feed(s)
-                self::cached_rss_display(
-                    'espresso_news_post_box_content',
-                    urlencode(
-                        apply_filters(
-                            'FHEE__EE_Admin_Page__espresso_news_post_box__feed_url',
-                            'http://eventespresso.com/feed/'
-                        )
-                    )
-                );
-                ?>
+				// Get RSS Feed(s)
+				self::cached_rss_display(
+					'espresso_news_post_box_content',
+					urlencode(
+						apply_filters(
+							'FHEE__EE_Admin_Page__espresso_news_post_box__feed_url',
+							'http://eventespresso.com/feed/'
+						)
+					)
+				);
+				?>
             </div>
             <?php do_action('AHEE__EE_Admin_Page__espresso_news_post_box__after_content'); ?>
         </div>
         <?php
-    }
-
-
-
-    private function _espresso_links_post_box()
-    {
-        //Hiding until we actually have content to put in here...
-        //add_meta_box('espresso_links_post_box', esc_html__('Helpful Plugin Links', 'event_espresso'), array( $this, 'espresso_links_post_box'), $this->_wp_page_slug, 'side');
-    }
-
-
-
-    public function espresso_links_post_box()
-    {
-        //Hiding until we actually have content to put in here...
-        // EEH_Template::display_template(
-        //     EE_ADMIN_TEMPLATE . 'admin_general_metabox_contents_espresso_links.template.php'
-        // );
-    }
-
-
-
-    protected function _espresso_sponsors_post_box()
-    {
-        if (apply_filters('FHEE_show_sponsors_meta_box', true)) {
-            add_meta_box(
-                'espresso_sponsors_post_box',
-                esc_html__('Event Espresso Highlights', 'event_espresso'),
-                array($this, 'espresso_sponsors_post_box'),
-                $this->_wp_page_slug,
-                'side'
-            );
-        }
-    }
-
-
-
-    public function espresso_sponsors_post_box()
-    {
-        EEH_Template::display_template(
-            EE_ADMIN_TEMPLATE . 'admin_general_metabox_contents_espresso_sponsors.template.php'
-        );
-    }
-
-
-
-    private function _publish_post_box()
-    {
-        $meta_box_ref = 'espresso_' . $this->page_slug . '_editor_overview';
-        // if there is a array('label' => array('publishbox' => 'some title') ) present in the _page_config array
-        // then we'll use that for the metabox label.
-        // Otherwise we'll just use publish (publishbox itself could be an array of labels indexed by routes)
-        if (! empty($this->_labels['publishbox'])) {
-            $box_label = is_array($this->_labels['publishbox']) ? $this->_labels['publishbox'][$this->_req_action]
-                : $this->_labels['publishbox'];
-        } else {
-            $box_label = esc_html__('Publish', 'event_espresso');
-        }
-        $box_label = apply_filters(
-            'FHEE__EE_Admin_Page___publish_post_box__box_label',
-            $box_label,
-            $this->_req_action,
-            $this
-        );
-        add_meta_box(
-            $meta_box_ref,
-            $box_label,
-            array($this, 'editor_overview'),
-            $this->_current_screen->id,
-            'side',
-            'high'
-        );
-    }
-
-
-
-    public function editor_overview()
-    {
-        //if we have extra content set let's add it in if not make sure its empty
-        $this->_template_args['publish_box_extra_content'] = isset($this->_template_args['publish_box_extra_content'])
-            ? $this->_template_args['publish_box_extra_content']
-            : '';
-        echo EEH_Template::display_template(
-            EE_ADMIN_TEMPLATE . 'admin_details_publish_metabox.template.php',
-            $this->_template_args,
-            true
-        );
-    }
-
-
-    /** end of globally available metaboxes section **/
-
-
-
-    /**
-     * Public wrapper for the protected method.  Allows plugins/addons to externally call the
-     * protected method.
-     *
-     * @see   $this->_set_publish_post_box_vars for param details
-     * @since 4.6.0
-     * @param string $name
-     * @param int    $id
-     * @param bool   $delete
-     * @param string $save_close_redirect_URL
-     * @param bool   $both_btns
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function set_publish_post_box_vars(
-        $name = '',
-        $id = 0,
-        $delete = false,
-        $save_close_redirect_URL = '',
-        $both_btns = true
-    ) {
-        $this->_set_publish_post_box_vars(
-            $name,
-            $id,
-            $delete,
-            $save_close_redirect_URL,
-            $both_btns
-        );
-    }
-
-
-
-    /**
-     * Sets the _template_args arguments used by the _publish_post_box shortcut
-     * Note: currently there is no validation for this.  However if you want the delete button, the
-     * save, and save and close buttons to work properly, then you will want to include a
-     * values for the name and id arguments.
-     *
-     * @todo  Add in validation for name/id arguments.
-     * @param    string  $name                    key used for the action ID (i.e. event_id)
-     * @param    int     $id                      id attached to the item published
-     * @param    string  $delete                  page route callback for the delete action
-     * @param    string  $save_close_redirect_URL custom URL to redirect to after Save & Close has been completed
-     * @param    boolean $both_btns               whether to display BOTH the "Save & Close" and "Save" buttons or just
-     *                                            the Save button
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _set_publish_post_box_vars(
-        $name = '',
-        $id = 0,
-        $delete = '',
-        $save_close_redirect_URL = '',
-        $both_btns = true
-    ) {
-        // if Save & Close, use a custom redirect URL or default to the main page?
-        $save_close_redirect_URL = ! empty($save_close_redirect_URL)
-            ? $save_close_redirect_URL
-            : $this->_admin_base_url;
-        // create the Save & Close and Save buttons
-        $this->_set_save_buttons($both_btns, array(), array(), $save_close_redirect_URL);
-        //if we have extra content set let's add it in if not make sure its empty
-        $this->_template_args['publish_box_extra_content'] = isset($this->_template_args['publish_box_extra_content'])
-            ? $this->_template_args['publish_box_extra_content']
-            : '';
-        if ($delete && ! empty($id)) {
-            //make sure we have a default if just true is sent.
-            $delete           = ! empty($delete) ? $delete : 'delete';
-            $delete_link_args = array($name => $id);
-            $delete           = $this->get_action_link_or_button(
-                $delete,
-                $delete,
-                $delete_link_args,
-                'submitdelete deletion',
-                '',
-                false
-            );
-        }
-        $this->_template_args['publish_delete_link'] = ! empty($id) ? $delete : '';
-        if (! empty($name) && ! empty($id)) {
-            $hidden_field_arr[$name] = array(
-                'type'  => 'hidden',
-                'value' => $id,
-            );
-            $hf                      = $this->_generate_admin_form_fields($hidden_field_arr, 'array');
-        } else {
-            $hf = '';
-        }
-        // add hidden field
-        $this->_template_args['publish_hidden_fields'] = is_array($hf) && ! empty($name)
-            ? $hf[$name]['field']
-            : $hf;
-    }
-
-
-
-    /**
-     * displays an error message to ppl who have javascript disabled
-     *
-     * @return void
-     */
-    private function _display_no_javascript_warning()
-    {
-        ?>
+	}
+
+
+
+	private function _espresso_links_post_box()
+	{
+		//Hiding until we actually have content to put in here...
+		//add_meta_box('espresso_links_post_box', esc_html__('Helpful Plugin Links', 'event_espresso'), array( $this, 'espresso_links_post_box'), $this->_wp_page_slug, 'side');
+	}
+
+
+
+	public function espresso_links_post_box()
+	{
+		//Hiding until we actually have content to put in here...
+		// EEH_Template::display_template(
+		//     EE_ADMIN_TEMPLATE . 'admin_general_metabox_contents_espresso_links.template.php'
+		// );
+	}
+
+
+
+	protected function _espresso_sponsors_post_box()
+	{
+		if (apply_filters('FHEE_show_sponsors_meta_box', true)) {
+			add_meta_box(
+				'espresso_sponsors_post_box',
+				esc_html__('Event Espresso Highlights', 'event_espresso'),
+				array($this, 'espresso_sponsors_post_box'),
+				$this->_wp_page_slug,
+				'side'
+			);
+		}
+	}
+
+
+
+	public function espresso_sponsors_post_box()
+	{
+		EEH_Template::display_template(
+			EE_ADMIN_TEMPLATE . 'admin_general_metabox_contents_espresso_sponsors.template.php'
+		);
+	}
+
+
+
+	private function _publish_post_box()
+	{
+		$meta_box_ref = 'espresso_' . $this->page_slug . '_editor_overview';
+		// if there is a array('label' => array('publishbox' => 'some title') ) present in the _page_config array
+		// then we'll use that for the metabox label.
+		// Otherwise we'll just use publish (publishbox itself could be an array of labels indexed by routes)
+		if (! empty($this->_labels['publishbox'])) {
+			$box_label = is_array($this->_labels['publishbox']) ? $this->_labels['publishbox'][$this->_req_action]
+				: $this->_labels['publishbox'];
+		} else {
+			$box_label = esc_html__('Publish', 'event_espresso');
+		}
+		$box_label = apply_filters(
+			'FHEE__EE_Admin_Page___publish_post_box__box_label',
+			$box_label,
+			$this->_req_action,
+			$this
+		);
+		add_meta_box(
+			$meta_box_ref,
+			$box_label,
+			array($this, 'editor_overview'),
+			$this->_current_screen->id,
+			'side',
+			'high'
+		);
+	}
+
+
+
+	public function editor_overview()
+	{
+		//if we have extra content set let's add it in if not make sure its empty
+		$this->_template_args['publish_box_extra_content'] = isset($this->_template_args['publish_box_extra_content'])
+			? $this->_template_args['publish_box_extra_content']
+			: '';
+		echo EEH_Template::display_template(
+			EE_ADMIN_TEMPLATE . 'admin_details_publish_metabox.template.php',
+			$this->_template_args,
+			true
+		);
+	}
+
+
+	/** end of globally available metaboxes section **/
+
+
+
+	/**
+	 * Public wrapper for the protected method.  Allows plugins/addons to externally call the
+	 * protected method.
+	 *
+	 * @see   $this->_set_publish_post_box_vars for param details
+	 * @since 4.6.0
+	 * @param string $name
+	 * @param int    $id
+	 * @param bool   $delete
+	 * @param string $save_close_redirect_URL
+	 * @param bool   $both_btns
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function set_publish_post_box_vars(
+		$name = '',
+		$id = 0,
+		$delete = false,
+		$save_close_redirect_URL = '',
+		$both_btns = true
+	) {
+		$this->_set_publish_post_box_vars(
+			$name,
+			$id,
+			$delete,
+			$save_close_redirect_URL,
+			$both_btns
+		);
+	}
+
+
+
+	/**
+	 * Sets the _template_args arguments used by the _publish_post_box shortcut
+	 * Note: currently there is no validation for this.  However if you want the delete button, the
+	 * save, and save and close buttons to work properly, then you will want to include a
+	 * values for the name and id arguments.
+	 *
+	 * @todo  Add in validation for name/id arguments.
+	 * @param    string  $name                    key used for the action ID (i.e. event_id)
+	 * @param    int     $id                      id attached to the item published
+	 * @param    string  $delete                  page route callback for the delete action
+	 * @param    string  $save_close_redirect_URL custom URL to redirect to after Save & Close has been completed
+	 * @param    boolean $both_btns               whether to display BOTH the "Save & Close" and "Save" buttons or just
+	 *                                            the Save button
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _set_publish_post_box_vars(
+		$name = '',
+		$id = 0,
+		$delete = '',
+		$save_close_redirect_URL = '',
+		$both_btns = true
+	) {
+		// if Save & Close, use a custom redirect URL or default to the main page?
+		$save_close_redirect_URL = ! empty($save_close_redirect_URL)
+			? $save_close_redirect_URL
+			: $this->_admin_base_url;
+		// create the Save & Close and Save buttons
+		$this->_set_save_buttons($both_btns, array(), array(), $save_close_redirect_URL);
+		//if we have extra content set let's add it in if not make sure its empty
+		$this->_template_args['publish_box_extra_content'] = isset($this->_template_args['publish_box_extra_content'])
+			? $this->_template_args['publish_box_extra_content']
+			: '';
+		if ($delete && ! empty($id)) {
+			//make sure we have a default if just true is sent.
+			$delete           = ! empty($delete) ? $delete : 'delete';
+			$delete_link_args = array($name => $id);
+			$delete           = $this->get_action_link_or_button(
+				$delete,
+				$delete,
+				$delete_link_args,
+				'submitdelete deletion',
+				'',
+				false
+			);
+		}
+		$this->_template_args['publish_delete_link'] = ! empty($id) ? $delete : '';
+		if (! empty($name) && ! empty($id)) {
+			$hidden_field_arr[$name] = array(
+				'type'  => 'hidden',
+				'value' => $id,
+			);
+			$hf                      = $this->_generate_admin_form_fields($hidden_field_arr, 'array');
+		} else {
+			$hf = '';
+		}
+		// add hidden field
+		$this->_template_args['publish_hidden_fields'] = is_array($hf) && ! empty($name)
+			? $hf[$name]['field']
+			: $hf;
+	}
+
+
+
+	/**
+	 * displays an error message to ppl who have javascript disabled
+	 *
+	 * @return void
+	 */
+	private function _display_no_javascript_warning()
+	{
+		?>
         <noscript>
             <div id="no-js-message" class="error">
                 <p style="font-size:1.3em;">
                     <span style="color:red;"><?php esc_html_e('Warning!', 'event_espresso'); ?></span>
                     <?php esc_html_e(
-                        'Javascript is currently turned off for your browser. Javascript must be enabled in order for all of the features on this page to function properly. Please turn your javascript back on.',
-                        'event_espresso'
-                    ); ?>
+						'Javascript is currently turned off for your browser. Javascript must be enabled in order for all of the features on this page to function properly. Please turn your javascript back on.',
+						'event_espresso'
+					); ?>
                 </p>
             </div>
         </noscript>
         <?php
-    }
+	}
 
 
 
-    /**
-     * displays espresso success and/or error notices
-     *
-     * @return void
-     */
-    private function _display_espresso_notices()
-    {
-        $notices = $this->_get_transient(true);
-        echo stripslashes($notices);
-    }
+	/**
+	 * displays espresso success and/or error notices
+	 *
+	 * @return void
+	 */
+	private function _display_espresso_notices()
+	{
+		$notices = $this->_get_transient(true);
+		echo stripslashes($notices);
+	}
 
 
 
-    /**
-     * spinny things pacify the masses
-     *
-     * @return void
-     */
-    protected function _add_admin_page_ajax_loading_img()
-    {
-        ?>
+	/**
+	 * spinny things pacify the masses
+	 *
+	 * @return void
+	 */
+	protected function _add_admin_page_ajax_loading_img()
+	{
+		?>
         <div id="espresso-ajax-loading" class="ajax-loading-grey">
             <span class="ee-spinner ee-spin"></span><span class="hidden"><?php esc_html_e(
-                    'loading...',
-                    'event_espresso'
-                ); ?></span>
+					'loading...',
+					'event_espresso'
+				); ?></span>
         </div>
         <?php
-    }
+	}
 
 
 
-    /**
-     * add admin page overlay for modal boxes
-     *
-     * @return void
-     */
-    protected function _add_admin_page_overlay()
-    {
-        ?>
+	/**
+	 * add admin page overlay for modal boxes
+	 *
+	 * @return void
+	 */
+	protected function _add_admin_page_overlay()
+	{
+		?>
         <div id="espresso-admin-page-overlay-dv" class=""></div>
         <?php
-    }
-
-
-
-    /**
-     * facade for add_meta_box
-     *
-     * @param string  $action        where the metabox get's displayed
-     * @param string  $title         Title of Metabox (output in metabox header)
-     * @param string  $callback      If not empty and $create_fun is set to false then we'll use a custom callback
-     *                               instead of the one created in here.
-     * @param array   $callback_args an array of args supplied for the metabox
-     * @param string  $column        what metabox column
-     * @param string  $priority      give this metabox a priority (using accepted priorities for wp meta boxes)
-     * @param boolean $create_func   default is true.  Basically we can say we don't WANT to have the runtime function
-     *                               created but just set our own callback for wp's add_meta_box.
-     * @throws \DomainException
-     */
-    public function _add_admin_page_meta_box(
-        $action,
-        $title,
-        $callback,
-        $callback_args,
-        $column = 'normal',
-        $priority = 'high',
-        $create_func = true
-    ) {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, $callback);
-        //if we have empty callback args and we want to automatically create the metabox callback then we need to make sure the callback args are generated.
-        if (empty($callback_args) && $create_func) {
-            $callback_args = array(
-                'template_path' => $this->_template_path,
-                'template_args' => $this->_template_args,
-            );
-        }
-        //if $create_func is true (default) then we automatically create the function for displaying the actual meta box.  If false then we take the $callback reference passed through and use it instead (so callers can define their own callback function/method if they wish)
-        $call_back_func = $create_func
-            ? function ($post, $metabox)
-            {
-                do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-                echo EEH_Template::display_template(
-                    $metabox['args']['template_path'],
-                    $metabox['args']['template_args'],
-                    true
-                );
-            }
-            : $callback;
-        add_meta_box(
-            str_replace('_', '-', $action) . '-mbox',
-            $title,
-            $call_back_func,
-            $this->_wp_page_slug,
-            $column,
-            $priority,
-            $callback_args
-        );
-    }
-
-
-
-    /**
-     * generates HTML wrapper for and admin details page that contains metaboxes in columns
-     *
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    public function display_admin_page_with_metabox_columns()
-    {
-        $this->_template_args['post_body_content']  = $this->_template_args['admin_page_content'];
-        $this->_template_args['admin_page_content'] = EEH_Template::display_template(
-            $this->_column_template_path,
-            $this->_template_args,
-            true
-        );
-        //the final wrapper
-        $this->admin_page_wrapper();
-    }
-
-
-
-    /**
-     * generates  HTML wrapper for an admin details page
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws DomainException
-     */
-    public function display_admin_page_with_sidebar()
-    {
-        $this->_display_admin_page(true);
-    }
-
-
-
-    /**
-     * generates  HTML wrapper for an admin details page (except no sidebar)
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws DomainException
-     */
-    public function display_admin_page_with_no_sidebar()
-    {
-        $this->_display_admin_page();
-    }
-
-
-
-    /**
-     * generates HTML wrapper for an EE about admin page (no sidebar)
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws DomainException
-     */
-    public function display_about_admin_page()
-    {
-        $this->_display_admin_page(false, true);
-    }
-
-
-
-    /**
-     * display_admin_page
-     * contains the code for actually displaying an admin page
-     *
-     * @param  boolean $sidebar true with sidebar, false without
-     * @param  boolean $about   use the about admin wrapper instead of the default.
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    private function _display_admin_page($sidebar = false, $about = false)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        //custom remove metaboxes hook to add or remove any metaboxes to/from Admin pages.
-        do_action('AHEE__EE_Admin_Page___display_admin_page__modify_metaboxes');
-        // set current wp page slug - looks like: event-espresso_page_event_categories
-        // keep in mind "event-espresso" COULD be something else if the top level menu label has been translated.
-        $this->_template_args['current_page']              = $this->_wp_page_slug;
-        $this->_template_args['admin_page_wrapper_div_id'] = $this->_cpt_route
-            ? 'poststuff'
-            : 'espresso-default-admin';
-        $template_path                                     = $sidebar
-            ? EE_ADMIN_TEMPLATE . 'admin_details_wrapper.template.php'
-            : EE_ADMIN_TEMPLATE . 'admin_details_wrapper_no_sidebar.template.php';
-        if (defined('DOING_AJAX') && DOING_AJAX) {
-            $template_path = EE_ADMIN_TEMPLATE . 'admin_details_wrapper_no_sidebar_ajax.template.php';
-        }
-        $template_path                                     = ! empty($this->_column_template_path)
-            ? $this->_column_template_path : $template_path;
-        $this->_template_args['post_body_content']         = isset($this->_template_args['admin_page_content'])
-            ? $this->_template_args['admin_page_content']
-            : '';
-        $this->_template_args['before_admin_page_content'] = isset($this->_template_args['before_admin_page_content'])
-            ? $this->_template_args['before_admin_page_content']
-            : '';
-        $this->_template_args['after_admin_page_content']  = isset($this->_template_args['after_admin_page_content'])
-            ? $this->_template_args['after_admin_page_content']
-            : '';
-        $this->_template_args['admin_page_content']        = EEH_Template::display_template(
-            $template_path,
-            $this->_template_args,
-            true
-        );
-        // the final template wrapper
-        $this->admin_page_wrapper($about);
-    }
-
-
-
-    /**
-     * This is used to display caf preview pages.
-     *
-     * @since 4.3.2
-     * @param string $utm_campaign_source what is the key used for google analytics link
-     * @param bool   $display_sidebar     whether to use the sidebar template or the full template for the page.  TRUE
-     *                                    = SHOW sidebar, FALSE = no sidebar. Default no sidebar.
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function display_admin_caf_preview_page($utm_campaign_source = '', $display_sidebar = true)
-    {
-        //let's generate a default preview action button if there isn't one already present.
-        $this->_labels['buttons']['buy_now']           = esc_html__(
-            'Upgrade to Event Espresso 4 Right Now',
-            'event_espresso'
-        );
-        $buy_now_url                                   = add_query_arg(
-            array(
-                'ee_ver'       => 'ee4',
-                'utm_source'   => 'ee4_plugin_admin',
-                'utm_medium'   => 'link',
-                'utm_campaign' => $utm_campaign_source,
-                'utm_content'  => 'buy_now_button',
-            ),
-            'http://eventespresso.com/pricing/'
-        );
-        $this->_template_args['preview_action_button'] = ! isset($this->_template_args['preview_action_button'])
-            ? $this->get_action_link_or_button(
-                '',
-                'buy_now',
-                array(),
-                'button-primary button-large',
-                $buy_now_url,
-                true
-            )
-            : $this->_template_args['preview_action_button'];
-        $this->_template_args['admin_page_content']    = EEH_Template::display_template(
-            EE_ADMIN_TEMPLATE . 'admin_caf_full_page_preview.template.php',
-            $this->_template_args,
-            true
-        );
-        $this->_display_admin_page($display_sidebar);
-    }
-
-
-
-    /**
-     * display_admin_list_table_page_with_sidebar
-     * generates HTML wrapper for an admin_page with list_table
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws DomainException
-     */
-    public function display_admin_list_table_page_with_sidebar()
-    {
-        $this->_display_admin_list_table_page(true);
-    }
-
-
-
-    /**
-     * display_admin_list_table_page_with_no_sidebar
-     * generates HTML wrapper for an admin_page with list_table (but with no sidebar)
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws DomainException
-     */
-    public function display_admin_list_table_page_with_no_sidebar()
-    {
-        $this->_display_admin_list_table_page();
-    }
-
-
-
-    /**
-     * generates html wrapper for an admin_list_table page
-     *
-     * @param boolean $sidebar whether to display with sidebar or not.
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    private function _display_admin_list_table_page($sidebar = false)
-    {
-        //setup search attributes
-        $this->_set_search_attributes();
-        $this->_template_args['current_page']     = $this->_wp_page_slug;
-        $template_path                            = EE_ADMIN_TEMPLATE . 'admin_list_wrapper.template.php';
-        $this->_template_args['table_url']        = defined('DOING_AJAX')
-            ? add_query_arg(array('noheader' => 'true', 'route' => $this->_req_action), $this->_admin_base_url)
-            : add_query_arg(array('route' => $this->_req_action), $this->_admin_base_url);
-        $this->_template_args['list_table']       = $this->_list_table_object;
-        $this->_template_args['current_route']    = $this->_req_action;
-        $this->_template_args['list_table_class'] = get_class($this->_list_table_object);
-        $ajax_sorting_callback                    = $this->_list_table_object->get_ajax_sorting_callback();
-        if (! empty($ajax_sorting_callback)) {
-            $sortable_list_table_form_fields = wp_nonce_field(
-                $ajax_sorting_callback . '_nonce',
-                $ajax_sorting_callback . '_nonce',
-                false,
-                false
-            );
-            //			$reorder_action = 'espresso_' . $ajax_sorting_callback . '_nonce';
-            //			$sortable_list_table_form_fields = wp_nonce_field( $reorder_action, 'ajax_table_sort_nonce', FALSE, FALSE );
-            $sortable_list_table_form_fields .= '<input type="hidden" id="ajax_table_sort_page" name="ajax_table_sort_page" value="'
-                                                . $this->page_slug
-                                                . '" />';
-            $sortable_list_table_form_fields .= '<input type="hidden" id="ajax_table_sort_action" name="ajax_table_sort_action" value="'
-                                                . $ajax_sorting_callback
-                                                . '" />';
-        } else {
-            $sortable_list_table_form_fields = '';
-        }
-        $this->_template_args['sortable_list_table_form_fields'] = $sortable_list_table_form_fields;
-        $hidden_form_fields                                      = isset($this->_template_args['list_table_hidden_fields'])
-            ? $this->_template_args['list_table_hidden_fields']
-            : '';
-        $nonce_ref                                               = $this->_req_action . '_nonce';
-        $hidden_form_fields                                      .= '<input type="hidden" name="'
-                                                                    . $nonce_ref
-                                                                    . '" value="'
-                                                                    . wp_create_nonce($nonce_ref)
-                                                                    . '">';
-        $this->_template_args['list_table_hidden_fields']        = $hidden_form_fields;
-        //display message about search results?
-        $this->_template_args['before_list_table'] .= ! empty($this->_req_data['s'])
-            ? '<p class="ee-search-results">' . sprintf(
-                esc_html__('Displaying search results for the search string: %1$s', 'event_espresso'),
-                trim($this->_req_data['s'], '%')
-            ) . '</p>'
-            : '';
-        // filter before_list_table template arg
-        $this->_template_args['before_list_table'] = apply_filters(
-            'FHEE__EE_Admin_Page___display_admin_list_table_page__before_list_table__template_arg',
-            $this->_template_args['before_list_table'],
-            $this->page_slug,
-            $this->_req_data,
-            $this->_req_action
-        );
-        // convert to array and filter again
-        // arrays are easier to inject new items in a specific location,
-        // but would not be backwards compatible, so we have to add a new filter
-        $this->_template_args['before_list_table'] = implode(
-            " \n",
-            (array)apply_filters(
-                'FHEE__EE_Admin_Page___display_admin_list_table_page__before_list_table__template_args_array',
-                (array)$this->_template_args['before_list_table'],
-                $this->page_slug,
-                $this->_req_data,
-                $this->_req_action
-            )
-        );
-        // filter after_list_table template arg
-        $this->_template_args['after_list_table'] = apply_filters(
-            'FHEE__EE_Admin_Page___display_admin_list_table_page__after_list_table__template_arg',
-            $this->_template_args['after_list_table'],
-            $this->page_slug,
-            $this->_req_data,
-            $this->_req_action
-        );
-        // convert to array and filter again
-        // arrays are easier to inject new items in a specific location,
-        // but would not be backwards compatible, so we have to add a new filter
-        $this->_template_args['after_list_table']   = implode(
-            " \n",
-            (array)apply_filters(
-                'FHEE__EE_Admin_Page___display_admin_list_table_page__after_list_table__template_args_array',
-                (array)$this->_template_args['after_list_table'],
-                $this->page_slug,
-                $this->_req_data,
-                $this->_req_action
-            )
-        );
-        $this->_template_args['admin_page_content'] = EEH_Template::display_template(
-            $template_path,
-            $this->_template_args,
-            true
-        );
-        // the final template wrapper
-        if ($sidebar) {
-            $this->display_admin_page_with_sidebar();
-        } else {
-            $this->display_admin_page_with_no_sidebar();
-        }
-    }
-
-
-
-    /**
-     * This just prepares a legend using the given items and the admin_details_legend.template.php file and returns the
-     * html string for the legend.
-     * $items are expected in an array in the following format:
-     * $legend_items = array(
-     *        'item_id' => array(
-     *            'icon' => 'http://url_to_icon_being_described.png',
-     *            'desc' => esc_html__('localized description of item');
-     *        )
-     * );
-     *
-     * @param  array $items see above for format of array
-     * @return string html string of legend
-     * @throws DomainException
-     */
-    protected function _display_legend($items)
-    {
-        $this->_template_args['items'] = apply_filters(
-            'FHEE__EE_Admin_Page___display_legend__items',
-            (array)$items,
-            $this
-        );
-        return EEH_Template::display_template(
-            EE_ADMIN_TEMPLATE . 'admin_details_legend.template.php',
-            $this->_template_args,
-            true
-        );
-    }
-
-
-    /**
-     * This is used whenever we're DOING_AJAX to return a formatted json array that our calling javascript can expect
-     * The returned json object is created from an array in the following format:
-     * array(
-     *  'error' => FALSE, //(default FALSE), contains any errors and/or exceptions (exceptions return json early),
-     *  'success' => FALSE, //(default FALSE) - contains any special success message.
-     *  'notices' => '', // - contains any EE_Error formatted notices
-     *  'content' => 'string can be html', //this is a string of formatted content (can be html)
-     *  'data' => array() //this can be any key/value pairs that a method returns for later json parsing by the js.
-     *  We're also going to include the template args with every package (so js can pick out any specific template args
-     *  that might be included in here)
-     * )
-     * The json object is populated by whatever is set in the $_template_args property.
-     *
-     * @param bool  $sticky_notices    Used to indicate whether you want to ensure notices are added to a transient
-     *                                 instead of displayed.
-     * @param array $notices_arguments Use this to pass any additional args on to the _process_notices.
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _return_json($sticky_notices = false, $notices_arguments = array())
-    {
-        //make sure any EE_Error notices have been handled.
-        $this->_process_notices($notices_arguments, true, $sticky_notices);
-        $data = isset($this->_template_args['data']) ? $this->_template_args['data'] : array();
-        unset($this->_template_args['data']);
-        $json = array(
-            'error'     => isset($this->_template_args['error']) ? $this->_template_args['error'] : false,
-            'success'   => isset($this->_template_args['success']) ? $this->_template_args['success'] : false,
-            'errors'    => isset($this->_template_args['errors']) ? $this->_template_args['errors'] : false,
-            'attention' => isset($this->_template_args['attention']) ? $this->_template_args['attention'] : false,
-            'notices'   => EE_Error::get_notices(),
-            'content'   => isset($this->_template_args['admin_page_content'])
-                ? $this->_template_args['admin_page_content'] : '',
-            'data'      => array_merge($data, array('template_args' => $this->_template_args)),
-            'isEEajax'  => true
-            //special flag so any ajax.Success methods in js can identify this return package as a EEajax package.
-        );
-        // make sure there are no php errors or headers_sent.  Then we can set correct json header.
-        if (null === error_get_last() || ! headers_sent()) {
-            header('Content-Type: application/json; charset=UTF-8');
-        }
-        echo wp_json_encode($json);
-        exit();
-    }
-
-
-
-    /**
-     * Simply a wrapper for the protected method so we can call this outside the class (ONLY when doing ajax)
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function return_json()
-    {
-        if (defined('DOING_AJAX') && DOING_AJAX) {
-            $this->_return_json();
-        } else {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__('The public %s method can only be called when DOING_AJAX = TRUE', 'event_espresso'),
-                    __FUNCTION__
-                )
-            );
-        }
-    }
-
-
-
-    /**
-     * This provides a way for child hook classes to send along themselves by reference so methods/properties within
-     * them can be accessed by EE_Admin_child pages. This is assigned to the $_hook_obj property.
-     *
-     * @param EE_Admin_Hooks $hook_obj This will be the object for the EE_Admin_Hooks child
-     */
-    public function set_hook_object(EE_Admin_Hooks $hook_obj)
-    {
-        $this->_hook_obj = $hook_obj;
-    }
-
-
-
-    /**
-     *        generates  HTML wrapper with Tabbed nav for an admin page
-     *
-     * @param  boolean $about whether to use the special about page wrapper or default.
-     * @return void
-     * @throws DomainException
-     * @throws EE_Error
-     */
-    public function admin_page_wrapper($about = false)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        $this->_nav_tabs                                   = $this->_get_main_nav_tabs();
-        $this->_template_args['nav_tabs']                  = $this->_nav_tabs;
-        $this->_template_args['admin_page_title']          = $this->_admin_page_title;
-        $this->_template_args['before_admin_page_content'] = apply_filters(
-            "FHEE_before_admin_page_content{$this->_current_page}{$this->_current_view}",
-            isset($this->_template_args['before_admin_page_content'])
-                ? $this->_template_args['before_admin_page_content']
-                : ''
-        );
-        $this->_template_args['after_admin_page_content']  = apply_filters(
-            "FHEE_after_admin_page_content{$this->_current_page}{$this->_current_view}",
-            isset($this->_template_args['after_admin_page_content'])
-                ? $this->_template_args['after_admin_page_content']
-                : ''
-        );
-        $this->_template_args['after_admin_page_content']  .= $this->_set_help_popup_content();
-        // load settings page wrapper template
-        $template_path = ! defined('DOING_AJAX')
-            ? EE_ADMIN_TEMPLATE . 'admin_wrapper.template.php'
-            : EE_ADMIN_TEMPLATE
-              . 'admin_wrapper_ajax.template.php';
-        //about page?
-        $template_path = $about
-            ? EE_ADMIN_TEMPLATE . 'about_admin_wrapper.template.php'
-            : $template_path;
-        if (defined('DOING_AJAX')) {
-            $this->_template_args['admin_page_content'] = EEH_Template::display_template(
-                $template_path,
-                $this->_template_args,
-                true
-            );
-            $this->_return_json();
-        } else {
-            EEH_Template::display_template($template_path, $this->_template_args);
-        }
-    }
-
-
-
-    /**
-     * This returns the admin_nav tabs html using the configuration in the _nav_tabs property
-     *
-     * @return string html
-     * @throws EE_Error
-     */
-    protected function _get_main_nav_tabs()
-    {
-        // let's generate the html using the EEH_Tabbed_Content helper.
-        // We do this here so that it's possible for child classes to add in nav tabs dynamically at the last minute
-        // (rather than setting in the page_routes array)
-        return EEH_Tabbed_Content::display_admin_nav_tabs($this->_nav_tabs);
-    }
-
-
-
-    /**
-     *        sort nav tabs
-     *
-     * @param $a
-     * @param $b
-     * @return int
-     */
-    private function _sort_nav_tabs($a, $b)
-    {
-        if ($a['order'] === $b['order']) {
-            return 0;
-        }
-        return ($a['order'] < $b['order']) ? -1 : 1;
-    }
-
-
-
-    /**
-     *    generates HTML for the forms used on admin pages
-     *
-     * @param    array $input_vars - array of input field details
-     * @param string   $generator  (options are 'string' or 'array', basically use this to indicate which generator to
-     *                             use)
-     * @param bool     $id
-     * @return string
-     * @uses   EEH_Form_Fields::get_form_fields (/helper/EEH_Form_Fields.helper.php)
-     * @uses   EEH_Form_Fields::get_form_fields_array (/helper/EEH_Form_Fields.helper.php)
-     */
-    protected function _generate_admin_form_fields($input_vars = array(), $generator = 'string', $id = false)
-    {
-        $content = $generator === 'string'
-            ? EEH_Form_Fields::get_form_fields($input_vars, $id)
-            : EEH_Form_Fields::get_form_fields_array($input_vars);
-        return $content;
-    }
-
-
-
-    /**
-     * generates the "Save" and "Save & Close" buttons for edit forms
-     *
-     * @param bool             $both     if true then both buttons will be generated.  If false then just the "Save &
-     *                                   Close" button.
-     * @param array            $text     if included, generator will use the given text for the buttons ( array([0] =>
-     *                                   'Save', [1] => 'save & close')
-     * @param array            $actions  if included allows us to set the actions that each button will carry out (i.e.
-     *                                   via the "name" value in the button).  We can also use this to just dump
-     *                                   default actions by submitting some other value.
-     * @param bool|string|null $referrer if false then we just do the default action on save and close.  Other wise it
-     *                                   will use the $referrer string. IF null, then we don't do ANYTHING on save and
-     *                                   close (normal form handling).
-     */
-    protected function _set_save_buttons($both = true, $text = array(), $actions = array(), $referrer = null)
-    {
-        //make sure $text and $actions are in an array
-        $text          = (array)$text;
-        $actions       = (array)$actions;
-        $referrer_url  = empty($referrer)
-            ? '<input type="hidden" id="save_and_close_referrer" name="save_and_close_referrer" value="'
-              . $_SERVER['REQUEST_URI']
-              . '" />'
-            : '<input type="hidden" id="save_and_close_referrer" name="save_and_close_referrer" value="'
-              . $referrer
-              . '" />';
-        $button_text   = ! empty($text)
-            ? $text
-            : array(
-                esc_html__('Save', 'event_espresso'),
-                esc_html__('Save and Close', 'event_espresso'),
-            );
-        $default_names = array('save', 'save_and_close');
-        //add in a hidden index for the current page (so save and close redirects properly)
-        $this->_template_args['save_buttons'] = $referrer_url;
-        foreach ($button_text as $key => $button) {
-            $ref                                  = $default_names[$key];
-            $this->_template_args['save_buttons'] .= '<input type="submit" class="button-primary '
-                                                     . $ref
-                                                     . '" value="'
-                                                     . $button
-                                                     . '" name="'
-                                                     . (! empty($actions) ? $actions[$key] : $ref)
-                                                     . '" id="'
-                                                     . $this->_current_view . '_' . $ref
-                                                     . '" />';
-            if (! $both) {
-                break;
-            }
-        }
-    }
-
-
-
-    /**
-     * Wrapper for the protected function.  Allows plugins/addons to call this to set the form tags.
-     *
-     * @see   $this->_set_add_edit_form_tags() for details on params
-     * @since 4.6.0
-     * @param string $route
-     * @param array  $additional_hidden_fields
-     */
-    public function set_add_edit_form_tags($route = '', $additional_hidden_fields = array())
-    {
-        $this->_set_add_edit_form_tags($route, $additional_hidden_fields);
-    }
-
-
-
-    /**
-     * set form open and close tags on add/edit pages.
-     *
-     * @param string $route                    the route you want the form to direct to
-     * @param array  $additional_hidden_fields any additional hidden fields required in the form header
-     * @return void
-     */
-    protected function _set_add_edit_form_tags($route = '', $additional_hidden_fields = array())
-    {
-        if (empty($route)) {
-            $user_msg = esc_html__(
-                'An error occurred. No action was set for this page\'s form.',
-                'event_espresso'
-            );
-            $dev_msg  = $user_msg . "\n" . sprintf(
-                    esc_html__('The $route argument is required for the %s->%s method.', 'event_espresso'),
-                    __FUNCTION__,
-                    __CLASS__
-                );
-            EE_Error::add_error($user_msg . '||' . $dev_msg, __FILE__, __FUNCTION__, __LINE__);
-        }
-        // open form
-        $this->_template_args['before_admin_page_content'] = '<form name="form" method="post" action="'
-                                                             . $this->_admin_base_url
-                                                             . '" id="'
-                                                             . $route
-                                                             . '_event_form" >';
-        // add nonce
-        $nonce = wp_nonce_field($route . '_nonce', $route . '_nonce', false, false);
-        //		$nonce = wp_nonce_field( $route . '_nonce', '_wpnonce', FALSE, FALSE );
-        $this->_template_args['before_admin_page_content'] .= "\n\t" . $nonce;
-        // add REQUIRED form action
-        $hidden_fields = array(
-            'action' => array('type' => 'hidden', 'value' => $route),
-        );
-        // merge arrays
-        $hidden_fields = is_array($additional_hidden_fields)
-            ? array_merge($hidden_fields, $additional_hidden_fields)
-            : $hidden_fields;
-        // generate form fields
-        $form_fields = $this->_generate_admin_form_fields($hidden_fields, 'array');
-        // add fields to form
-        foreach ((array)$form_fields as $field_name => $form_field) {
-            $this->_template_args['before_admin_page_content'] .= "\n\t" . $form_field['field'];
-        }
-        // close form
-        $this->_template_args['after_admin_page_content'] = '</form>';
-    }
-
-
-
-    /**
-     * Public Wrapper for _redirect_after_action() method since its
-     * discovered it would be useful for external code to have access.
-     *
-     * @see   EE_Admin_Page::_redirect_after_action() for params.
-     * @since 4.5.0
-     * @param bool   $success
-     * @param string $what
-     * @param string $action_desc
-     * @param array  $query_args
-     * @param bool   $override_overwrite
-     * @throws EE_Error
-     */
-    public function redirect_after_action(
-        $success = false,
-        $what = 'item',
-        $action_desc = 'processed',
-        $query_args = array(),
-        $override_overwrite = false
-    ) {
-        $this->_redirect_after_action(
-            $success,
-            $what,
-            $action_desc,
-            $query_args,
-            $override_overwrite
-        );
-    }
-
-
-
-    /**
-     *    _redirect_after_action
-     *
-     * @param int    $success            - whether success was for two or more records, or just one, or none
-     * @param string $what               - what the action was performed on
-     * @param string $action_desc        - what was done ie: updated, deleted, etc
-     * @param array  $query_args         - an array of query_args to be added to the URL to redirect to after the admin
-     *                                   action is completed
-     * @param BOOL   $override_overwrite by default all EE_Error::success messages are overwritten, this allows you to
-     *                                   override this so that they show.
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _redirect_after_action(
-        $success = 0,
-        $what = 'item',
-        $action_desc = 'processed',
-        $query_args = array(),
-        $override_overwrite = false
-    ) {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        //class name for actions/filters.
-        $classname = get_class($this);
-        // set redirect url.
-        // Note if there is a "page" index in the $query_args then we go with vanilla admin.php route,
-        // otherwise we go with whatever is set as the _admin_base_url
-        $redirect_url = isset($query_args['page']) ? admin_url('admin.php') : $this->_admin_base_url;
-        $notices      = EE_Error::get_notices(false);
-        // overwrite default success messages //BUT ONLY if overwrite not overridden
-        if (! $override_overwrite || ! empty($notices['errors'])) {
-            EE_Error::overwrite_success();
-        }
-        if (! empty($what) && ! empty($action_desc)  && empty($notices['errors'])) {
-            // how many records affected ? more than one record ? or just one ?
-            if ($success > 1) {
-                // set plural msg
-                EE_Error::add_success(
-                    sprintf(
-                        esc_html__('The "%s" have been successfully %s.', 'event_espresso'),
-                        $what,
-                        $action_desc
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            } elseif ($success === 1) {
-                // set singular msg
-                EE_Error::add_success(
-                    sprintf(
-                        esc_html__('The "%s" has been successfully %s.', 'event_espresso'),
-                        $what,
-                        $action_desc
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        }
-        // check that $query_args isn't something crazy
-        if (! is_array($query_args)) {
-            $query_args = array();
-        }
-        /**
-         * Allow injecting actions before the query_args are modified for possible different
-         * redirections on save and close actions
-         *
-         * @since 4.2.0
-         * @param array $query_args       The original query_args array coming into the
-         *                                method.
-         */
-        do_action(
-            "AHEE__{$classname}___redirect_after_action__before_redirect_modification_{$this->_req_action}",
-            $query_args
-        );
-        //calculate where we're going (if we have a "save and close" button pushed)
-        if (isset($this->_req_data['save_and_close'], $this->_req_data['save_and_close_referrer'])) {
-            // even though we have the save_and_close referrer, we need to parse the url for the action in order to generate a nonce
-            $parsed_url = parse_url($this->_req_data['save_and_close_referrer']);
-            // regenerate query args array from referrer URL
-            parse_str($parsed_url['query'], $query_args);
-            // correct page and action will be in the query args now
-            $redirect_url = admin_url('admin.php');
-        }
-        //merge any default query_args set in _default_route_query_args property
-        if (! empty($this->_default_route_query_args) && ! $this->_is_UI_request) {
-            $args_to_merge = array();
-            foreach ($this->_default_route_query_args as $query_param => $query_value) {
-                //is there a wp_referer array in our _default_route_query_args property?
-                if ($query_param === 'wp_referer') {
-                    $query_value = (array)$query_value;
-                    foreach ($query_value as $reference => $value) {
-                        if (strpos($reference, 'nonce') !== false) {
-                            continue;
-                        }
-                        //finally we will override any arguments in the referer with
-                        //what might be set on the _default_route_query_args array.
-                        if (isset($this->_default_route_query_args[$reference])) {
-                            $args_to_merge[$reference] = urlencode($this->_default_route_query_args[$reference]);
-                        } else {
-                            $args_to_merge[$reference] = urlencode($value);
-                        }
-                    }
-                    continue;
-                }
-                $args_to_merge[$query_param] = $query_value;
-            }
-            //now let's merge these arguments but override with what was specifically sent in to the
-            //redirect.
-            $query_args = array_merge($args_to_merge, $query_args);
-        }
-        $this->_process_notices($query_args);
-        // generate redirect url
-        // if redirecting to anything other than the main page, add a nonce
-        if (isset($query_args['action'])) {
-            // manually generate wp_nonce and merge that with the query vars
-            // becuz the wp_nonce_url function wrecks havoc on some vars
-            $query_args['_wpnonce'] = wp_create_nonce($query_args['action'] . '_nonce');
-        }
-        // we're adding some hooks and filters in here for processing any things just before redirects
-        // (example: an admin page has done an insert or update and we want to run something after that).
-        do_action('AHEE_redirect_' . $classname . $this->_req_action, $query_args);
-        $redirect_url = apply_filters(
-            'FHEE_redirect_' . $classname . $this->_req_action,
-            self::add_query_args_and_nonce($query_args, $redirect_url),
-            $query_args
-        );
-        // check if we're doing ajax.  If we are then lets just return the results and js can handle how it wants.
-        if (defined('DOING_AJAX')) {
-            $default_data                    = array(
-                'close'        => true,
-                'redirect_url' => $redirect_url,
-                'where'        => 'main',
-                'what'         => 'append',
-            );
-            $this->_template_args['success'] = $success;
-            $this->_template_args['data']    = ! empty($this->_template_args['data']) ? array_merge(
-                $default_data,
-                $this->_template_args['data']
-            ) : $default_data;
-            $this->_return_json();
-        }
-        wp_safe_redirect($redirect_url);
-        exit();
-    }
-
-
-
-    /**
-     * process any notices before redirecting (or returning ajax request)
-     * This method sets the $this->_template_args['notices'] attribute;
-     *
-     * @param  array $query_args        any query args that need to be used for notice transient ('action')
-     * @param bool   $skip_route_verify This is typically used when we are processing notices REALLY early and
-     *                                  page_routes haven't been defined yet.
-     * @param bool   $sticky_notices    This is used to flag that regardless of whether this is doing_ajax or not, we
-     *                                  still save a transient for the notice.
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _process_notices($query_args = array(), $skip_route_verify = false, $sticky_notices = true)
-    {
-        //first let's set individual error properties if doing_ajax and the properties aren't already set.
-        if (defined('DOING_AJAX') && DOING_AJAX) {
-            $notices = EE_Error::get_notices(false);
-            if (empty($this->_template_args['success'])) {
-                $this->_template_args['success'] = isset($notices['success']) ? $notices['success'] : false;
-            }
-            if (empty($this->_template_args['errors'])) {
-                $this->_template_args['errors'] = isset($notices['errors']) ? $notices['errors'] : false;
-            }
-            if (empty($this->_template_args['attention'])) {
-                $this->_template_args['attention'] = isset($notices['attention']) ? $notices['attention'] : false;
-            }
-        }
-        $this->_template_args['notices'] = EE_Error::get_notices();
-        //IF this isn't ajax we need to create a transient for the notices using the route (however, overridden if $sticky_notices == true)
-        if (! defined('DOING_AJAX') || $sticky_notices) {
-            $route = isset($query_args['action']) ? $query_args['action'] : 'default';
-            $this->_add_transient(
-                $route,
-                $this->_template_args['notices'],
-                true,
-                $skip_route_verify
-            );
-        }
-    }
-
-
-
-    /**
-     * get_action_link_or_button
-     * returns the button html for adding, editing, or deleting an item (depending on given type)
-     *
-     * @param string $action        use this to indicate which action the url is generated with.
-     * @param string $type          accepted strings must be defined in the $_labels['button'] array(as the key)
-     *                              property.
-     * @param array  $extra_request if the button requires extra params you can include them in $key=>$value pairs.
-     * @param string $class         Use this to give the class for the button. Defaults to 'button-primary'
-     * @param string $base_url      If this is not provided
-     *                              the _admin_base_url will be used as the default for the button base_url.
-     *                              Otherwise this value will be used.
-     * @param bool   $exclude_nonce If true then no nonce will be in the generated button link.
-     * @return string
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    public function get_action_link_or_button(
-        $action,
-        $type = 'add',
-        $extra_request = array(),
-        $class = 'button-primary',
-        $base_url = '',
-        $exclude_nonce = false
-    ) {
-        //first let's validate the action (if $base_url is FALSE otherwise validation will happen further along)
-        if (empty($base_url) && ! isset($this->_page_routes[$action])) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'There is no page route for given action for the button.  This action was given: %s',
-                        'event_espresso'
-                    ),
-                    $action
-                )
-            );
-        }
-        if (! isset($this->_labels['buttons'][$type])) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'There is no label for the given button type (%s). Labels are set in the <code>_page_config</code> property.',
-                        'event_espresso'
-                    ),
-                    $type
-                )
-            );
-        }
-        //finally check user access for this button.
-        $has_access = $this->check_user_access($action, true);
-        if (! $has_access) {
-            return '';
-        }
-        $_base_url  = ! $base_url ? $this->_admin_base_url : $base_url;
-        $query_args = array(
-            'action' => $action,
-        );
-        //merge extra_request args but make sure our original action takes precedence and doesn't get overwritten.
-        if (! empty($extra_request)) {
-            $query_args = array_merge($extra_request, $query_args);
-        }
-        $url = self::add_query_args_and_nonce($query_args, $_base_url, false, $exclude_nonce);
-        return EEH_Template::get_button_or_link($url, $this->_labels['buttons'][$type], $class);
-    }
-
-
-
-    /**
-     * _per_page_screen_option
-     * Utility function for adding in a per_page_option in the screen_options_dropdown.
-     *
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    protected function _per_page_screen_option()
-    {
-        $option = 'per_page';
-        $args   = array(
-            'label'   => esc_html__(
-                    apply_filters(
-                        'FHEE__EE_Admin_Page___per_page_screen_options___label',
-                        $this->_admin_page_title,
-                        $this
-                    )
-            ),
-            'default' => (int) apply_filters(
-                    'FHEE__EE_Admin_Page___per_page_screen_options__default',
-                    10
-            ),
-            'option'  => $this->_current_page . '_' . $this->_current_view . '_per_page',
-        );
-        //ONLY add the screen option if the user has access to it.
-        if ($this->check_user_access($this->_current_view, true)) {
-            add_screen_option($option, $args);
-        }
-    }
-
-
-
-    /**
-     * set_per_page_screen_option
-     * All this does is make sure that WordPress saves any per_page screen options (if set) for the current page.
-     * we have to do this rather than running inside the 'set-screen-options' hook because it runs earlier than
-     * admin_menu.
-     *
-     * @return void
-     */
-    private function _set_per_page_screen_options()
-    {
-        if (isset($_POST['wp_screen_options']) && is_array($_POST['wp_screen_options'])) {
-            check_admin_referer('screen-options-nonce', 'screenoptionnonce');
-            if (! $user = wp_get_current_user()) {
-                return;
-            }
-            $option = $_POST['wp_screen_options']['option'];
-            $value  = $_POST['wp_screen_options']['value'];
-            if ($option != sanitize_key($option)) {
-                return;
-            }
-            $map_option = $option;
-            $option     = str_replace('-', '_', $option);
-            switch ($map_option) {
-                case $this->_current_page . '_' . $this->_current_view . '_per_page':
-                    $value = (int)$value;
-                    $max_value = apply_filters(
-                        'FHEE__EE_Admin_Page___set_per_page_screen_options__max_value',
-                        999,
-                        $this->_current_page,
-                        $this->_current_view
-                    );
-                    if ($value < 1) {
-                        return;
-                    }
-                    $value = min($value, $max_value);
-                    break;
-                default:
-                    $value = apply_filters(
-                        'FHEE__EE_Admin_Page___set_per_page_screen_options__value',
-                        false,
-                        $option,
-                        $value
-                    );
-                    if (false === $value) {
-                        return;
-                    }
-                    break;
-            }
-            update_user_meta($user->ID, $option, $value);
-            wp_safe_redirect(remove_query_arg(array('pagenum', 'apage', 'paged'), wp_get_referer()));
-            exit;
-        }
-    }
-
-
-
-    /**
-     * This just allows for setting the $_template_args property if it needs to be set outside the object
-     *
-     * @param array $data array that will be assigned to template args.
-     */
-    public function set_template_args($data)
-    {
-        $this->_template_args = array_merge($this->_template_args, (array)$data);
-    }
-
-
-
-    /**
-     * This makes available the WP transient system for temporarily moving data between routes
-     *
-     * @param string $route             the route that should receive the transient
-     * @param array  $data              the data that gets sent
-     * @param bool   $notices           If this is for notices then we use this to indicate so, otherwise its just a
-     *                                  normal route transient.
-     * @param bool   $skip_route_verify Used to indicate we want to skip route verification.  This is usually ONLY used
-     *                                  when we are adding a transient before page_routes have been defined.
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _add_transient($route, $data, $notices = false, $skip_route_verify = false)
-    {
-        $user_id = get_current_user_id();
-        if (! $skip_route_verify) {
-            $this->_verify_route($route);
-        }
-        //now let's set the string for what kind of transient we're setting
-        $transient = $notices
-            ? 'ee_rte_n_tx_' . $route . '_' . $user_id
-            : 'rte_tx_' . $route . '_' . $user_id;
-        $data      = $notices ? array('notices' => $data) : $data;
-        //is there already a transient for this route?  If there is then let's ADD to that transient
-        $existing = is_multisite() && is_network_admin()
-            ? get_site_transient($transient)
-            : get_transient($transient);
-        if ($existing) {
-            $data = array_merge((array)$data, (array)$existing);
-        }
-        if (is_multisite() && is_network_admin()) {
-            set_site_transient($transient, $data, 8);
-        } else {
-            set_transient($transient, $data, 8);
-        }
-    }
-
-
-
-    /**
-     * this retrieves the temporary transient that has been set for moving data between routes.
-     *
-     * @param bool   $notices true we get notices transient. False we just return normal route transient
-     * @param string $route
-     * @return mixed data
-     */
-    protected function _get_transient($notices = false, $route = '')
-    {
-        $user_id   = get_current_user_id();
-        $route     = ! $route ? $this->_req_action : $route;
-        $transient = $notices
-            ? 'ee_rte_n_tx_' . $route . '_' . $user_id
-            : 'rte_tx_' . $route . '_' . $user_id;
-        $data      = is_multisite() && is_network_admin()
-            ? get_site_transient($transient)
-            : get_transient($transient);
-        //delete transient after retrieval (just in case it hasn't expired);
-        if (is_multisite() && is_network_admin()) {
-            delete_site_transient($transient);
-        } else {
-            delete_transient($transient);
-        }
-        return $notices && isset($data['notices']) ? $data['notices'] : $data;
-    }
-
-
-
-    /**
-     * The purpose of this method is just to run garbage collection on any EE transients that might have expired but
-     * would not be called later. This will be assigned to run on a specific EE Admin page. (place the method in the
-     * default route callback on the EE_Admin page you want it run.)
-     *
-     * @return void
-     */
-    protected function _transient_garbage_collection()
-    {
-        global $wpdb;
-        //retrieve all existing transients
-        $query = "SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE '%rte_tx_%' OR option_name LIKE '%rte_n_tx_%'";
-        if ($results = $wpdb->get_results($query)) {
-            foreach ($results as $result) {
-                $transient = str_replace('_transient_', '', $result->option_name);
-                get_transient($transient);
-                if (is_multisite() && is_network_admin()) {
-                    get_site_transient($transient);
-                }
-            }
-        }
-    }
-
-
-
-    /**
-     * get_view
-     *
-     * @return string content of _view property
-     */
-    public function get_view()
-    {
-        return $this->_view;
-    }
-
-
-
-    /**
-     * getter for the protected $_views property
-     *
-     * @return array
-     */
-    public function get_views()
-    {
-        return $this->_views;
-    }
-
-
-
-    /**
-     * get_current_page
-     *
-     * @return string _current_page property value
-     */
-    public function get_current_page()
-    {
-        return $this->_current_page;
-    }
-
-
-
-    /**
-     * get_current_view
-     *
-     * @return string _current_view property value
-     */
-    public function get_current_view()
-    {
-        return $this->_current_view;
-    }
-
-
-
-    /**
-     * get_current_screen
-     *
-     * @return object The current WP_Screen object
-     */
-    public function get_current_screen()
-    {
-        return $this->_current_screen;
-    }
-
-
-
-    /**
-     * get_current_page_view_url
-     *
-     * @return string This returns the url for the current_page_view.
-     */
-    public function get_current_page_view_url()
-    {
-        return $this->_current_page_view_url;
-    }
-
-
-
-    /**
-     * just returns the _req_data property
-     *
-     * @return array
-     */
-    public function get_request_data()
-    {
-        return $this->_req_data;
-    }
-
-
-
-    /**
-     * returns the _req_data protected property
-     *
-     * @return string
-     */
-    public function get_req_action()
-    {
-        return $this->_req_action;
-    }
-
-
-
-    /**
-     * @return bool  value of $_is_caf property
-     */
-    public function is_caf()
-    {
-        return $this->_is_caf;
-    }
-
-
-
-    /**
-     * @return mixed
-     */
-    public function default_espresso_metaboxes()
-    {
-        return $this->_default_espresso_metaboxes;
-    }
-
-
-
-    /**
-     * @return mixed
-     */
-    public function admin_base_url()
-    {
-        return $this->_admin_base_url;
-    }
+	}
+
+
+
+	/**
+	 * facade for add_meta_box
+	 *
+	 * @param string  $action        where the metabox get's displayed
+	 * @param string  $title         Title of Metabox (output in metabox header)
+	 * @param string  $callback      If not empty and $create_fun is set to false then we'll use a custom callback
+	 *                               instead of the one created in here.
+	 * @param array   $callback_args an array of args supplied for the metabox
+	 * @param string  $column        what metabox column
+	 * @param string  $priority      give this metabox a priority (using accepted priorities for wp meta boxes)
+	 * @param boolean $create_func   default is true.  Basically we can say we don't WANT to have the runtime function
+	 *                               created but just set our own callback for wp's add_meta_box.
+	 * @throws \DomainException
+	 */
+	public function _add_admin_page_meta_box(
+		$action,
+		$title,
+		$callback,
+		$callback_args,
+		$column = 'normal',
+		$priority = 'high',
+		$create_func = true
+	) {
+		do_action('AHEE_log', __FILE__, __FUNCTION__, $callback);
+		//if we have empty callback args and we want to automatically create the metabox callback then we need to make sure the callback args are generated.
+		if (empty($callback_args) && $create_func) {
+			$callback_args = array(
+				'template_path' => $this->_template_path,
+				'template_args' => $this->_template_args,
+			);
+		}
+		//if $create_func is true (default) then we automatically create the function for displaying the actual meta box.  If false then we take the $callback reference passed through and use it instead (so callers can define their own callback function/method if they wish)
+		$call_back_func = $create_func
+			? function ($post, $metabox)
+			{
+				do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+				echo EEH_Template::display_template(
+					$metabox['args']['template_path'],
+					$metabox['args']['template_args'],
+					true
+				);
+			}
+			: $callback;
+		add_meta_box(
+			str_replace('_', '-', $action) . '-mbox',
+			$title,
+			$call_back_func,
+			$this->_wp_page_slug,
+			$column,
+			$priority,
+			$callback_args
+		);
+	}
+
+
+
+	/**
+	 * generates HTML wrapper for and admin details page that contains metaboxes in columns
+	 *
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	public function display_admin_page_with_metabox_columns()
+	{
+		$this->_template_args['post_body_content']  = $this->_template_args['admin_page_content'];
+		$this->_template_args['admin_page_content'] = EEH_Template::display_template(
+			$this->_column_template_path,
+			$this->_template_args,
+			true
+		);
+		//the final wrapper
+		$this->admin_page_wrapper();
+	}
+
+
+
+	/**
+	 * generates  HTML wrapper for an admin details page
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws DomainException
+	 */
+	public function display_admin_page_with_sidebar()
+	{
+		$this->_display_admin_page(true);
+	}
+
+
+
+	/**
+	 * generates  HTML wrapper for an admin details page (except no sidebar)
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws DomainException
+	 */
+	public function display_admin_page_with_no_sidebar()
+	{
+		$this->_display_admin_page();
+	}
+
+
+
+	/**
+	 * generates HTML wrapper for an EE about admin page (no sidebar)
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws DomainException
+	 */
+	public function display_about_admin_page()
+	{
+		$this->_display_admin_page(false, true);
+	}
+
+
+
+	/**
+	 * display_admin_page
+	 * contains the code for actually displaying an admin page
+	 *
+	 * @param  boolean $sidebar true with sidebar, false without
+	 * @param  boolean $about   use the about admin wrapper instead of the default.
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	private function _display_admin_page($sidebar = false, $about = false)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		//custom remove metaboxes hook to add or remove any metaboxes to/from Admin pages.
+		do_action('AHEE__EE_Admin_Page___display_admin_page__modify_metaboxes');
+		// set current wp page slug - looks like: event-espresso_page_event_categories
+		// keep in mind "event-espresso" COULD be something else if the top level menu label has been translated.
+		$this->_template_args['current_page']              = $this->_wp_page_slug;
+		$this->_template_args['admin_page_wrapper_div_id'] = $this->_cpt_route
+			? 'poststuff'
+			: 'espresso-default-admin';
+		$template_path                                     = $sidebar
+			? EE_ADMIN_TEMPLATE . 'admin_details_wrapper.template.php'
+			: EE_ADMIN_TEMPLATE . 'admin_details_wrapper_no_sidebar.template.php';
+		if (defined('DOING_AJAX') && DOING_AJAX) {
+			$template_path = EE_ADMIN_TEMPLATE . 'admin_details_wrapper_no_sidebar_ajax.template.php';
+		}
+		$template_path                                     = ! empty($this->_column_template_path)
+			? $this->_column_template_path : $template_path;
+		$this->_template_args['post_body_content']         = isset($this->_template_args['admin_page_content'])
+			? $this->_template_args['admin_page_content']
+			: '';
+		$this->_template_args['before_admin_page_content'] = isset($this->_template_args['before_admin_page_content'])
+			? $this->_template_args['before_admin_page_content']
+			: '';
+		$this->_template_args['after_admin_page_content']  = isset($this->_template_args['after_admin_page_content'])
+			? $this->_template_args['after_admin_page_content']
+			: '';
+		$this->_template_args['admin_page_content']        = EEH_Template::display_template(
+			$template_path,
+			$this->_template_args,
+			true
+		);
+		// the final template wrapper
+		$this->admin_page_wrapper($about);
+	}
+
+
+
+	/**
+	 * This is used to display caf preview pages.
+	 *
+	 * @since 4.3.2
+	 * @param string $utm_campaign_source what is the key used for google analytics link
+	 * @param bool   $display_sidebar     whether to use the sidebar template or the full template for the page.  TRUE
+	 *                                    = SHOW sidebar, FALSE = no sidebar. Default no sidebar.
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function display_admin_caf_preview_page($utm_campaign_source = '', $display_sidebar = true)
+	{
+		//let's generate a default preview action button if there isn't one already present.
+		$this->_labels['buttons']['buy_now']           = esc_html__(
+			'Upgrade to Event Espresso 4 Right Now',
+			'event_espresso'
+		);
+		$buy_now_url                                   = add_query_arg(
+			array(
+				'ee_ver'       => 'ee4',
+				'utm_source'   => 'ee4_plugin_admin',
+				'utm_medium'   => 'link',
+				'utm_campaign' => $utm_campaign_source,
+				'utm_content'  => 'buy_now_button',
+			),
+			'http://eventespresso.com/pricing/'
+		);
+		$this->_template_args['preview_action_button'] = ! isset($this->_template_args['preview_action_button'])
+			? $this->get_action_link_or_button(
+				'',
+				'buy_now',
+				array(),
+				'button-primary button-large',
+				$buy_now_url,
+				true
+			)
+			: $this->_template_args['preview_action_button'];
+		$this->_template_args['admin_page_content']    = EEH_Template::display_template(
+			EE_ADMIN_TEMPLATE . 'admin_caf_full_page_preview.template.php',
+			$this->_template_args,
+			true
+		);
+		$this->_display_admin_page($display_sidebar);
+	}
+
+
+
+	/**
+	 * display_admin_list_table_page_with_sidebar
+	 * generates HTML wrapper for an admin_page with list_table
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws DomainException
+	 */
+	public function display_admin_list_table_page_with_sidebar()
+	{
+		$this->_display_admin_list_table_page(true);
+	}
+
+
+
+	/**
+	 * display_admin_list_table_page_with_no_sidebar
+	 * generates HTML wrapper for an admin_page with list_table (but with no sidebar)
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws DomainException
+	 */
+	public function display_admin_list_table_page_with_no_sidebar()
+	{
+		$this->_display_admin_list_table_page();
+	}
+
+
+
+	/**
+	 * generates html wrapper for an admin_list_table page
+	 *
+	 * @param boolean $sidebar whether to display with sidebar or not.
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	private function _display_admin_list_table_page($sidebar = false)
+	{
+		//setup search attributes
+		$this->_set_search_attributes();
+		$this->_template_args['current_page']     = $this->_wp_page_slug;
+		$template_path                            = EE_ADMIN_TEMPLATE . 'admin_list_wrapper.template.php';
+		$this->_template_args['table_url']        = defined('DOING_AJAX')
+			? add_query_arg(array('noheader' => 'true', 'route' => $this->_req_action), $this->_admin_base_url)
+			: add_query_arg(array('route' => $this->_req_action), $this->_admin_base_url);
+		$this->_template_args['list_table']       = $this->_list_table_object;
+		$this->_template_args['current_route']    = $this->_req_action;
+		$this->_template_args['list_table_class'] = get_class($this->_list_table_object);
+		$ajax_sorting_callback                    = $this->_list_table_object->get_ajax_sorting_callback();
+		if (! empty($ajax_sorting_callback)) {
+			$sortable_list_table_form_fields = wp_nonce_field(
+				$ajax_sorting_callback . '_nonce',
+				$ajax_sorting_callback . '_nonce',
+				false,
+				false
+			);
+			//			$reorder_action = 'espresso_' . $ajax_sorting_callback . '_nonce';
+			//			$sortable_list_table_form_fields = wp_nonce_field( $reorder_action, 'ajax_table_sort_nonce', FALSE, FALSE );
+			$sortable_list_table_form_fields .= '<input type="hidden" id="ajax_table_sort_page" name="ajax_table_sort_page" value="'
+												. $this->page_slug
+												. '" />';
+			$sortable_list_table_form_fields .= '<input type="hidden" id="ajax_table_sort_action" name="ajax_table_sort_action" value="'
+												. $ajax_sorting_callback
+												. '" />';
+		} else {
+			$sortable_list_table_form_fields = '';
+		}
+		$this->_template_args['sortable_list_table_form_fields'] = $sortable_list_table_form_fields;
+		$hidden_form_fields                                      = isset($this->_template_args['list_table_hidden_fields'])
+			? $this->_template_args['list_table_hidden_fields']
+			: '';
+		$nonce_ref                                               = $this->_req_action . '_nonce';
+		$hidden_form_fields                                      .= '<input type="hidden" name="'
+																	. $nonce_ref
+																	. '" value="'
+																	. wp_create_nonce($nonce_ref)
+																	. '">';
+		$this->_template_args['list_table_hidden_fields']        = $hidden_form_fields;
+		//display message about search results?
+		$this->_template_args['before_list_table'] .= ! empty($this->_req_data['s'])
+			? '<p class="ee-search-results">' . sprintf(
+				esc_html__('Displaying search results for the search string: %1$s', 'event_espresso'),
+				trim($this->_req_data['s'], '%')
+			) . '</p>'
+			: '';
+		// filter before_list_table template arg
+		$this->_template_args['before_list_table'] = apply_filters(
+			'FHEE__EE_Admin_Page___display_admin_list_table_page__before_list_table__template_arg',
+			$this->_template_args['before_list_table'],
+			$this->page_slug,
+			$this->_req_data,
+			$this->_req_action
+		);
+		// convert to array and filter again
+		// arrays are easier to inject new items in a specific location,
+		// but would not be backwards compatible, so we have to add a new filter
+		$this->_template_args['before_list_table'] = implode(
+			" \n",
+			(array)apply_filters(
+				'FHEE__EE_Admin_Page___display_admin_list_table_page__before_list_table__template_args_array',
+				(array)$this->_template_args['before_list_table'],
+				$this->page_slug,
+				$this->_req_data,
+				$this->_req_action
+			)
+		);
+		// filter after_list_table template arg
+		$this->_template_args['after_list_table'] = apply_filters(
+			'FHEE__EE_Admin_Page___display_admin_list_table_page__after_list_table__template_arg',
+			$this->_template_args['after_list_table'],
+			$this->page_slug,
+			$this->_req_data,
+			$this->_req_action
+		);
+		// convert to array and filter again
+		// arrays are easier to inject new items in a specific location,
+		// but would not be backwards compatible, so we have to add a new filter
+		$this->_template_args['after_list_table']   = implode(
+			" \n",
+			(array)apply_filters(
+				'FHEE__EE_Admin_Page___display_admin_list_table_page__after_list_table__template_args_array',
+				(array)$this->_template_args['after_list_table'],
+				$this->page_slug,
+				$this->_req_data,
+				$this->_req_action
+			)
+		);
+		$this->_template_args['admin_page_content'] = EEH_Template::display_template(
+			$template_path,
+			$this->_template_args,
+			true
+		);
+		// the final template wrapper
+		if ($sidebar) {
+			$this->display_admin_page_with_sidebar();
+		} else {
+			$this->display_admin_page_with_no_sidebar();
+		}
+	}
+
+
+
+	/**
+	 * This just prepares a legend using the given items and the admin_details_legend.template.php file and returns the
+	 * html string for the legend.
+	 * $items are expected in an array in the following format:
+	 * $legend_items = array(
+	 *        'item_id' => array(
+	 *            'icon' => 'http://url_to_icon_being_described.png',
+	 *            'desc' => esc_html__('localized description of item');
+	 *        )
+	 * );
+	 *
+	 * @param  array $items see above for format of array
+	 * @return string html string of legend
+	 * @throws DomainException
+	 */
+	protected function _display_legend($items)
+	{
+		$this->_template_args['items'] = apply_filters(
+			'FHEE__EE_Admin_Page___display_legend__items',
+			(array)$items,
+			$this
+		);
+		return EEH_Template::display_template(
+			EE_ADMIN_TEMPLATE . 'admin_details_legend.template.php',
+			$this->_template_args,
+			true
+		);
+	}
+
+
+	/**
+	 * This is used whenever we're DOING_AJAX to return a formatted json array that our calling javascript can expect
+	 * The returned json object is created from an array in the following format:
+	 * array(
+	 *  'error' => FALSE, //(default FALSE), contains any errors and/or exceptions (exceptions return json early),
+	 *  'success' => FALSE, //(default FALSE) - contains any special success message.
+	 *  'notices' => '', // - contains any EE_Error formatted notices
+	 *  'content' => 'string can be html', //this is a string of formatted content (can be html)
+	 *  'data' => array() //this can be any key/value pairs that a method returns for later json parsing by the js.
+	 *  We're also going to include the template args with every package (so js can pick out any specific template args
+	 *  that might be included in here)
+	 * )
+	 * The json object is populated by whatever is set in the $_template_args property.
+	 *
+	 * @param bool  $sticky_notices    Used to indicate whether you want to ensure notices are added to a transient
+	 *                                 instead of displayed.
+	 * @param array $notices_arguments Use this to pass any additional args on to the _process_notices.
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _return_json($sticky_notices = false, $notices_arguments = array())
+	{
+		//make sure any EE_Error notices have been handled.
+		$this->_process_notices($notices_arguments, true, $sticky_notices);
+		$data = isset($this->_template_args['data']) ? $this->_template_args['data'] : array();
+		unset($this->_template_args['data']);
+		$json = array(
+			'error'     => isset($this->_template_args['error']) ? $this->_template_args['error'] : false,
+			'success'   => isset($this->_template_args['success']) ? $this->_template_args['success'] : false,
+			'errors'    => isset($this->_template_args['errors']) ? $this->_template_args['errors'] : false,
+			'attention' => isset($this->_template_args['attention']) ? $this->_template_args['attention'] : false,
+			'notices'   => EE_Error::get_notices(),
+			'content'   => isset($this->_template_args['admin_page_content'])
+				? $this->_template_args['admin_page_content'] : '',
+			'data'      => array_merge($data, array('template_args' => $this->_template_args)),
+			'isEEajax'  => true
+			//special flag so any ajax.Success methods in js can identify this return package as a EEajax package.
+		);
+		// make sure there are no php errors or headers_sent.  Then we can set correct json header.
+		if (null === error_get_last() || ! headers_sent()) {
+			header('Content-Type: application/json; charset=UTF-8');
+		}
+		echo wp_json_encode($json);
+		exit();
+	}
+
+
+
+	/**
+	 * Simply a wrapper for the protected method so we can call this outside the class (ONLY when doing ajax)
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function return_json()
+	{
+		if (defined('DOING_AJAX') && DOING_AJAX) {
+			$this->_return_json();
+		} else {
+			throw new EE_Error(
+				sprintf(
+					esc_html__('The public %s method can only be called when DOING_AJAX = TRUE', 'event_espresso'),
+					__FUNCTION__
+				)
+			);
+		}
+	}
+
+
+
+	/**
+	 * This provides a way for child hook classes to send along themselves by reference so methods/properties within
+	 * them can be accessed by EE_Admin_child pages. This is assigned to the $_hook_obj property.
+	 *
+	 * @param EE_Admin_Hooks $hook_obj This will be the object for the EE_Admin_Hooks child
+	 */
+	public function set_hook_object(EE_Admin_Hooks $hook_obj)
+	{
+		$this->_hook_obj = $hook_obj;
+	}
+
+
+
+	/**
+	 *        generates  HTML wrapper with Tabbed nav for an admin page
+	 *
+	 * @param  boolean $about whether to use the special about page wrapper or default.
+	 * @return void
+	 * @throws DomainException
+	 * @throws EE_Error
+	 */
+	public function admin_page_wrapper($about = false)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		$this->_nav_tabs                                   = $this->_get_main_nav_tabs();
+		$this->_template_args['nav_tabs']                  = $this->_nav_tabs;
+		$this->_template_args['admin_page_title']          = $this->_admin_page_title;
+		$this->_template_args['before_admin_page_content'] = apply_filters(
+			"FHEE_before_admin_page_content{$this->_current_page}{$this->_current_view}",
+			isset($this->_template_args['before_admin_page_content'])
+				? $this->_template_args['before_admin_page_content']
+				: ''
+		);
+		$this->_template_args['after_admin_page_content']  = apply_filters(
+			"FHEE_after_admin_page_content{$this->_current_page}{$this->_current_view}",
+			isset($this->_template_args['after_admin_page_content'])
+				? $this->_template_args['after_admin_page_content']
+				: ''
+		);
+		$this->_template_args['after_admin_page_content']  .= $this->_set_help_popup_content();
+		// load settings page wrapper template
+		$template_path = ! defined('DOING_AJAX')
+			? EE_ADMIN_TEMPLATE . 'admin_wrapper.template.php'
+			: EE_ADMIN_TEMPLATE
+			  . 'admin_wrapper_ajax.template.php';
+		//about page?
+		$template_path = $about
+			? EE_ADMIN_TEMPLATE . 'about_admin_wrapper.template.php'
+			: $template_path;
+		if (defined('DOING_AJAX')) {
+			$this->_template_args['admin_page_content'] = EEH_Template::display_template(
+				$template_path,
+				$this->_template_args,
+				true
+			);
+			$this->_return_json();
+		} else {
+			EEH_Template::display_template($template_path, $this->_template_args);
+		}
+	}
+
+
+
+	/**
+	 * This returns the admin_nav tabs html using the configuration in the _nav_tabs property
+	 *
+	 * @return string html
+	 * @throws EE_Error
+	 */
+	protected function _get_main_nav_tabs()
+	{
+		// let's generate the html using the EEH_Tabbed_Content helper.
+		// We do this here so that it's possible for child classes to add in nav tabs dynamically at the last minute
+		// (rather than setting in the page_routes array)
+		return EEH_Tabbed_Content::display_admin_nav_tabs($this->_nav_tabs);
+	}
+
+
+
+	/**
+	 *        sort nav tabs
+	 *
+	 * @param $a
+	 * @param $b
+	 * @return int
+	 */
+	private function _sort_nav_tabs($a, $b)
+	{
+		if ($a['order'] === $b['order']) {
+			return 0;
+		}
+		return ($a['order'] < $b['order']) ? -1 : 1;
+	}
+
+
+
+	/**
+	 *    generates HTML for the forms used on admin pages
+	 *
+	 * @param    array $input_vars - array of input field details
+	 * @param string   $generator  (options are 'string' or 'array', basically use this to indicate which generator to
+	 *                             use)
+	 * @param bool     $id
+	 * @return string
+	 * @uses   EEH_Form_Fields::get_form_fields (/helper/EEH_Form_Fields.helper.php)
+	 * @uses   EEH_Form_Fields::get_form_fields_array (/helper/EEH_Form_Fields.helper.php)
+	 */
+	protected function _generate_admin_form_fields($input_vars = array(), $generator = 'string', $id = false)
+	{
+		$content = $generator === 'string'
+			? EEH_Form_Fields::get_form_fields($input_vars, $id)
+			: EEH_Form_Fields::get_form_fields_array($input_vars);
+		return $content;
+	}
+
+
+
+	/**
+	 * generates the "Save" and "Save & Close" buttons for edit forms
+	 *
+	 * @param bool             $both     if true then both buttons will be generated.  If false then just the "Save &
+	 *                                   Close" button.
+	 * @param array            $text     if included, generator will use the given text for the buttons ( array([0] =>
+	 *                                   'Save', [1] => 'save & close')
+	 * @param array            $actions  if included allows us to set the actions that each button will carry out (i.e.
+	 *                                   via the "name" value in the button).  We can also use this to just dump
+	 *                                   default actions by submitting some other value.
+	 * @param bool|string|null $referrer if false then we just do the default action on save and close.  Other wise it
+	 *                                   will use the $referrer string. IF null, then we don't do ANYTHING on save and
+	 *                                   close (normal form handling).
+	 */
+	protected function _set_save_buttons($both = true, $text = array(), $actions = array(), $referrer = null)
+	{
+		//make sure $text and $actions are in an array
+		$text          = (array)$text;
+		$actions       = (array)$actions;
+		$referrer_url  = empty($referrer)
+			? '<input type="hidden" id="save_and_close_referrer" name="save_and_close_referrer" value="'
+			  . $_SERVER['REQUEST_URI']
+			  . '" />'
+			: '<input type="hidden" id="save_and_close_referrer" name="save_and_close_referrer" value="'
+			  . $referrer
+			  . '" />';
+		$button_text   = ! empty($text)
+			? $text
+			: array(
+				esc_html__('Save', 'event_espresso'),
+				esc_html__('Save and Close', 'event_espresso'),
+			);
+		$default_names = array('save', 'save_and_close');
+		//add in a hidden index for the current page (so save and close redirects properly)
+		$this->_template_args['save_buttons'] = $referrer_url;
+		foreach ($button_text as $key => $button) {
+			$ref                                  = $default_names[$key];
+			$this->_template_args['save_buttons'] .= '<input type="submit" class="button-primary '
+													 . $ref
+													 . '" value="'
+													 . $button
+													 . '" name="'
+													 . (! empty($actions) ? $actions[$key] : $ref)
+													 . '" id="'
+													 . $this->_current_view . '_' . $ref
+													 . '" />';
+			if (! $both) {
+				break;
+			}
+		}
+	}
+
+
+
+	/**
+	 * Wrapper for the protected function.  Allows plugins/addons to call this to set the form tags.
+	 *
+	 * @see   $this->_set_add_edit_form_tags() for details on params
+	 * @since 4.6.0
+	 * @param string $route
+	 * @param array  $additional_hidden_fields
+	 */
+	public function set_add_edit_form_tags($route = '', $additional_hidden_fields = array())
+	{
+		$this->_set_add_edit_form_tags($route, $additional_hidden_fields);
+	}
+
+
+
+	/**
+	 * set form open and close tags on add/edit pages.
+	 *
+	 * @param string $route                    the route you want the form to direct to
+	 * @param array  $additional_hidden_fields any additional hidden fields required in the form header
+	 * @return void
+	 */
+	protected function _set_add_edit_form_tags($route = '', $additional_hidden_fields = array())
+	{
+		if (empty($route)) {
+			$user_msg = esc_html__(
+				'An error occurred. No action was set for this page\'s form.',
+				'event_espresso'
+			);
+			$dev_msg  = $user_msg . "\n" . sprintf(
+					esc_html__('The $route argument is required for the %s->%s method.', 'event_espresso'),
+					__FUNCTION__,
+					__CLASS__
+				);
+			EE_Error::add_error($user_msg . '||' . $dev_msg, __FILE__, __FUNCTION__, __LINE__);
+		}
+		// open form
+		$this->_template_args['before_admin_page_content'] = '<form name="form" method="post" action="'
+															 . $this->_admin_base_url
+															 . '" id="'
+															 . $route
+															 . '_event_form" >';
+		// add nonce
+		$nonce = wp_nonce_field($route . '_nonce', $route . '_nonce', false, false);
+		//		$nonce = wp_nonce_field( $route . '_nonce', '_wpnonce', FALSE, FALSE );
+		$this->_template_args['before_admin_page_content'] .= "\n\t" . $nonce;
+		// add REQUIRED form action
+		$hidden_fields = array(
+			'action' => array('type' => 'hidden', 'value' => $route),
+		);
+		// merge arrays
+		$hidden_fields = is_array($additional_hidden_fields)
+			? array_merge($hidden_fields, $additional_hidden_fields)
+			: $hidden_fields;
+		// generate form fields
+		$form_fields = $this->_generate_admin_form_fields($hidden_fields, 'array');
+		// add fields to form
+		foreach ((array)$form_fields as $field_name => $form_field) {
+			$this->_template_args['before_admin_page_content'] .= "\n\t" . $form_field['field'];
+		}
+		// close form
+		$this->_template_args['after_admin_page_content'] = '</form>';
+	}
+
+
+
+	/**
+	 * Public Wrapper for _redirect_after_action() method since its
+	 * discovered it would be useful for external code to have access.
+	 *
+	 * @see   EE_Admin_Page::_redirect_after_action() for params.
+	 * @since 4.5.0
+	 * @param bool   $success
+	 * @param string $what
+	 * @param string $action_desc
+	 * @param array  $query_args
+	 * @param bool   $override_overwrite
+	 * @throws EE_Error
+	 */
+	public function redirect_after_action(
+		$success = false,
+		$what = 'item',
+		$action_desc = 'processed',
+		$query_args = array(),
+		$override_overwrite = false
+	) {
+		$this->_redirect_after_action(
+			$success,
+			$what,
+			$action_desc,
+			$query_args,
+			$override_overwrite
+		);
+	}
+
+
+
+	/**
+	 *    _redirect_after_action
+	 *
+	 * @param int    $success            - whether success was for two or more records, or just one, or none
+	 * @param string $what               - what the action was performed on
+	 * @param string $action_desc        - what was done ie: updated, deleted, etc
+	 * @param array  $query_args         - an array of query_args to be added to the URL to redirect to after the admin
+	 *                                   action is completed
+	 * @param BOOL   $override_overwrite by default all EE_Error::success messages are overwritten, this allows you to
+	 *                                   override this so that they show.
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _redirect_after_action(
+		$success = 0,
+		$what = 'item',
+		$action_desc = 'processed',
+		$query_args = array(),
+		$override_overwrite = false
+	) {
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		//class name for actions/filters.
+		$classname = get_class($this);
+		// set redirect url.
+		// Note if there is a "page" index in the $query_args then we go with vanilla admin.php route,
+		// otherwise we go with whatever is set as the _admin_base_url
+		$redirect_url = isset($query_args['page']) ? admin_url('admin.php') : $this->_admin_base_url;
+		$notices      = EE_Error::get_notices(false);
+		// overwrite default success messages //BUT ONLY if overwrite not overridden
+		if (! $override_overwrite || ! empty($notices['errors'])) {
+			EE_Error::overwrite_success();
+		}
+		if (! empty($what) && ! empty($action_desc)  && empty($notices['errors'])) {
+			// how many records affected ? more than one record ? or just one ?
+			if ($success > 1) {
+				// set plural msg
+				EE_Error::add_success(
+					sprintf(
+						esc_html__('The "%s" have been successfully %s.', 'event_espresso'),
+						$what,
+						$action_desc
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			} elseif ($success === 1) {
+				// set singular msg
+				EE_Error::add_success(
+					sprintf(
+						esc_html__('The "%s" has been successfully %s.', 'event_espresso'),
+						$what,
+						$action_desc
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		}
+		// check that $query_args isn't something crazy
+		if (! is_array($query_args)) {
+			$query_args = array();
+		}
+		/**
+		 * Allow injecting actions before the query_args are modified for possible different
+		 * redirections on save and close actions
+		 *
+		 * @since 4.2.0
+		 * @param array $query_args       The original query_args array coming into the
+		 *                                method.
+		 */
+		do_action(
+			"AHEE__{$classname}___redirect_after_action__before_redirect_modification_{$this->_req_action}",
+			$query_args
+		);
+		//calculate where we're going (if we have a "save and close" button pushed)
+		if (isset($this->_req_data['save_and_close'], $this->_req_data['save_and_close_referrer'])) {
+			// even though we have the save_and_close referrer, we need to parse the url for the action in order to generate a nonce
+			$parsed_url = parse_url($this->_req_data['save_and_close_referrer']);
+			// regenerate query args array from referrer URL
+			parse_str($parsed_url['query'], $query_args);
+			// correct page and action will be in the query args now
+			$redirect_url = admin_url('admin.php');
+		}
+		//merge any default query_args set in _default_route_query_args property
+		if (! empty($this->_default_route_query_args) && ! $this->_is_UI_request) {
+			$args_to_merge = array();
+			foreach ($this->_default_route_query_args as $query_param => $query_value) {
+				//is there a wp_referer array in our _default_route_query_args property?
+				if ($query_param === 'wp_referer') {
+					$query_value = (array)$query_value;
+					foreach ($query_value as $reference => $value) {
+						if (strpos($reference, 'nonce') !== false) {
+							continue;
+						}
+						//finally we will override any arguments in the referer with
+						//what might be set on the _default_route_query_args array.
+						if (isset($this->_default_route_query_args[$reference])) {
+							$args_to_merge[$reference] = urlencode($this->_default_route_query_args[$reference]);
+						} else {
+							$args_to_merge[$reference] = urlencode($value);
+						}
+					}
+					continue;
+				}
+				$args_to_merge[$query_param] = $query_value;
+			}
+			//now let's merge these arguments but override with what was specifically sent in to the
+			//redirect.
+			$query_args = array_merge($args_to_merge, $query_args);
+		}
+		$this->_process_notices($query_args);
+		// generate redirect url
+		// if redirecting to anything other than the main page, add a nonce
+		if (isset($query_args['action'])) {
+			// manually generate wp_nonce and merge that with the query vars
+			// becuz the wp_nonce_url function wrecks havoc on some vars
+			$query_args['_wpnonce'] = wp_create_nonce($query_args['action'] . '_nonce');
+		}
+		// we're adding some hooks and filters in here for processing any things just before redirects
+		// (example: an admin page has done an insert or update and we want to run something after that).
+		do_action('AHEE_redirect_' . $classname . $this->_req_action, $query_args);
+		$redirect_url = apply_filters(
+			'FHEE_redirect_' . $classname . $this->_req_action,
+			self::add_query_args_and_nonce($query_args, $redirect_url),
+			$query_args
+		);
+		// check if we're doing ajax.  If we are then lets just return the results and js can handle how it wants.
+		if (defined('DOING_AJAX')) {
+			$default_data                    = array(
+				'close'        => true,
+				'redirect_url' => $redirect_url,
+				'where'        => 'main',
+				'what'         => 'append',
+			);
+			$this->_template_args['success'] = $success;
+			$this->_template_args['data']    = ! empty($this->_template_args['data']) ? array_merge(
+				$default_data,
+				$this->_template_args['data']
+			) : $default_data;
+			$this->_return_json();
+		}
+		wp_safe_redirect($redirect_url);
+		exit();
+	}
+
+
+
+	/**
+	 * process any notices before redirecting (or returning ajax request)
+	 * This method sets the $this->_template_args['notices'] attribute;
+	 *
+	 * @param  array $query_args        any query args that need to be used for notice transient ('action')
+	 * @param bool   $skip_route_verify This is typically used when we are processing notices REALLY early and
+	 *                                  page_routes haven't been defined yet.
+	 * @param bool   $sticky_notices    This is used to flag that regardless of whether this is doing_ajax or not, we
+	 *                                  still save a transient for the notice.
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _process_notices($query_args = array(), $skip_route_verify = false, $sticky_notices = true)
+	{
+		//first let's set individual error properties if doing_ajax and the properties aren't already set.
+		if (defined('DOING_AJAX') && DOING_AJAX) {
+			$notices = EE_Error::get_notices(false);
+			if (empty($this->_template_args['success'])) {
+				$this->_template_args['success'] = isset($notices['success']) ? $notices['success'] : false;
+			}
+			if (empty($this->_template_args['errors'])) {
+				$this->_template_args['errors'] = isset($notices['errors']) ? $notices['errors'] : false;
+			}
+			if (empty($this->_template_args['attention'])) {
+				$this->_template_args['attention'] = isset($notices['attention']) ? $notices['attention'] : false;
+			}
+		}
+		$this->_template_args['notices'] = EE_Error::get_notices();
+		//IF this isn't ajax we need to create a transient for the notices using the route (however, overridden if $sticky_notices == true)
+		if (! defined('DOING_AJAX') || $sticky_notices) {
+			$route = isset($query_args['action']) ? $query_args['action'] : 'default';
+			$this->_add_transient(
+				$route,
+				$this->_template_args['notices'],
+				true,
+				$skip_route_verify
+			);
+		}
+	}
+
+
+
+	/**
+	 * get_action_link_or_button
+	 * returns the button html for adding, editing, or deleting an item (depending on given type)
+	 *
+	 * @param string $action        use this to indicate which action the url is generated with.
+	 * @param string $type          accepted strings must be defined in the $_labels['button'] array(as the key)
+	 *                              property.
+	 * @param array  $extra_request if the button requires extra params you can include them in $key=>$value pairs.
+	 * @param string $class         Use this to give the class for the button. Defaults to 'button-primary'
+	 * @param string $base_url      If this is not provided
+	 *                              the _admin_base_url will be used as the default for the button base_url.
+	 *                              Otherwise this value will be used.
+	 * @param bool   $exclude_nonce If true then no nonce will be in the generated button link.
+	 * @return string
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	public function get_action_link_or_button(
+		$action,
+		$type = 'add',
+		$extra_request = array(),
+		$class = 'button-primary',
+		$base_url = '',
+		$exclude_nonce = false
+	) {
+		//first let's validate the action (if $base_url is FALSE otherwise validation will happen further along)
+		if (empty($base_url) && ! isset($this->_page_routes[$action])) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'There is no page route for given action for the button.  This action was given: %s',
+						'event_espresso'
+					),
+					$action
+				)
+			);
+		}
+		if (! isset($this->_labels['buttons'][$type])) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'There is no label for the given button type (%s). Labels are set in the <code>_page_config</code> property.',
+						'event_espresso'
+					),
+					$type
+				)
+			);
+		}
+		//finally check user access for this button.
+		$has_access = $this->check_user_access($action, true);
+		if (! $has_access) {
+			return '';
+		}
+		$_base_url  = ! $base_url ? $this->_admin_base_url : $base_url;
+		$query_args = array(
+			'action' => $action,
+		);
+		//merge extra_request args but make sure our original action takes precedence and doesn't get overwritten.
+		if (! empty($extra_request)) {
+			$query_args = array_merge($extra_request, $query_args);
+		}
+		$url = self::add_query_args_and_nonce($query_args, $_base_url, false, $exclude_nonce);
+		return EEH_Template::get_button_or_link($url, $this->_labels['buttons'][$type], $class);
+	}
+
+
+
+	/**
+	 * _per_page_screen_option
+	 * Utility function for adding in a per_page_option in the screen_options_dropdown.
+	 *
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	protected function _per_page_screen_option()
+	{
+		$option = 'per_page';
+		$args   = array(
+			'label'   => esc_html__(
+					apply_filters(
+						'FHEE__EE_Admin_Page___per_page_screen_options___label',
+						$this->_admin_page_title,
+						$this
+					)
+			),
+			'default' => (int) apply_filters(
+					'FHEE__EE_Admin_Page___per_page_screen_options__default',
+					10
+			),
+			'option'  => $this->_current_page . '_' . $this->_current_view . '_per_page',
+		);
+		//ONLY add the screen option if the user has access to it.
+		if ($this->check_user_access($this->_current_view, true)) {
+			add_screen_option($option, $args);
+		}
+	}
+
+
+
+	/**
+	 * set_per_page_screen_option
+	 * All this does is make sure that WordPress saves any per_page screen options (if set) for the current page.
+	 * we have to do this rather than running inside the 'set-screen-options' hook because it runs earlier than
+	 * admin_menu.
+	 *
+	 * @return void
+	 */
+	private function _set_per_page_screen_options()
+	{
+		if (isset($_POST['wp_screen_options']) && is_array($_POST['wp_screen_options'])) {
+			check_admin_referer('screen-options-nonce', 'screenoptionnonce');
+			if (! $user = wp_get_current_user()) {
+				return;
+			}
+			$option = $_POST['wp_screen_options']['option'];
+			$value  = $_POST['wp_screen_options']['value'];
+			if ($option != sanitize_key($option)) {
+				return;
+			}
+			$map_option = $option;
+			$option     = str_replace('-', '_', $option);
+			switch ($map_option) {
+				case $this->_current_page . '_' . $this->_current_view . '_per_page':
+					$value = (int)$value;
+					$max_value = apply_filters(
+						'FHEE__EE_Admin_Page___set_per_page_screen_options__max_value',
+						999,
+						$this->_current_page,
+						$this->_current_view
+					);
+					if ($value < 1) {
+						return;
+					}
+					$value = min($value, $max_value);
+					break;
+				default:
+					$value = apply_filters(
+						'FHEE__EE_Admin_Page___set_per_page_screen_options__value',
+						false,
+						$option,
+						$value
+					);
+					if (false === $value) {
+						return;
+					}
+					break;
+			}
+			update_user_meta($user->ID, $option, $value);
+			wp_safe_redirect(remove_query_arg(array('pagenum', 'apage', 'paged'), wp_get_referer()));
+			exit;
+		}
+	}
+
+
+
+	/**
+	 * This just allows for setting the $_template_args property if it needs to be set outside the object
+	 *
+	 * @param array $data array that will be assigned to template args.
+	 */
+	public function set_template_args($data)
+	{
+		$this->_template_args = array_merge($this->_template_args, (array)$data);
+	}
+
+
+
+	/**
+	 * This makes available the WP transient system for temporarily moving data between routes
+	 *
+	 * @param string $route             the route that should receive the transient
+	 * @param array  $data              the data that gets sent
+	 * @param bool   $notices           If this is for notices then we use this to indicate so, otherwise its just a
+	 *                                  normal route transient.
+	 * @param bool   $skip_route_verify Used to indicate we want to skip route verification.  This is usually ONLY used
+	 *                                  when we are adding a transient before page_routes have been defined.
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _add_transient($route, $data, $notices = false, $skip_route_verify = false)
+	{
+		$user_id = get_current_user_id();
+		if (! $skip_route_verify) {
+			$this->_verify_route($route);
+		}
+		//now let's set the string for what kind of transient we're setting
+		$transient = $notices
+			? 'ee_rte_n_tx_' . $route . '_' . $user_id
+			: 'rte_tx_' . $route . '_' . $user_id;
+		$data      = $notices ? array('notices' => $data) : $data;
+		//is there already a transient for this route?  If there is then let's ADD to that transient
+		$existing = is_multisite() && is_network_admin()
+			? get_site_transient($transient)
+			: get_transient($transient);
+		if ($existing) {
+			$data = array_merge((array)$data, (array)$existing);
+		}
+		if (is_multisite() && is_network_admin()) {
+			set_site_transient($transient, $data, 8);
+		} else {
+			set_transient($transient, $data, 8);
+		}
+	}
+
+
+
+	/**
+	 * this retrieves the temporary transient that has been set for moving data between routes.
+	 *
+	 * @param bool   $notices true we get notices transient. False we just return normal route transient
+	 * @param string $route
+	 * @return mixed data
+	 */
+	protected function _get_transient($notices = false, $route = '')
+	{
+		$user_id   = get_current_user_id();
+		$route     = ! $route ? $this->_req_action : $route;
+		$transient = $notices
+			? 'ee_rte_n_tx_' . $route . '_' . $user_id
+			: 'rte_tx_' . $route . '_' . $user_id;
+		$data      = is_multisite() && is_network_admin()
+			? get_site_transient($transient)
+			: get_transient($transient);
+		//delete transient after retrieval (just in case it hasn't expired);
+		if (is_multisite() && is_network_admin()) {
+			delete_site_transient($transient);
+		} else {
+			delete_transient($transient);
+		}
+		return $notices && isset($data['notices']) ? $data['notices'] : $data;
+	}
+
+
+
+	/**
+	 * The purpose of this method is just to run garbage collection on any EE transients that might have expired but
+	 * would not be called later. This will be assigned to run on a specific EE Admin page. (place the method in the
+	 * default route callback on the EE_Admin page you want it run.)
+	 *
+	 * @return void
+	 */
+	protected function _transient_garbage_collection()
+	{
+		global $wpdb;
+		//retrieve all existing transients
+		$query = "SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE '%rte_tx_%' OR option_name LIKE '%rte_n_tx_%'";
+		if ($results = $wpdb->get_results($query)) {
+			foreach ($results as $result) {
+				$transient = str_replace('_transient_', '', $result->option_name);
+				get_transient($transient);
+				if (is_multisite() && is_network_admin()) {
+					get_site_transient($transient);
+				}
+			}
+		}
+	}
+
+
+
+	/**
+	 * get_view
+	 *
+	 * @return string content of _view property
+	 */
+	public function get_view()
+	{
+		return $this->_view;
+	}
+
+
+
+	/**
+	 * getter for the protected $_views property
+	 *
+	 * @return array
+	 */
+	public function get_views()
+	{
+		return $this->_views;
+	}
+
+
+
+	/**
+	 * get_current_page
+	 *
+	 * @return string _current_page property value
+	 */
+	public function get_current_page()
+	{
+		return $this->_current_page;
+	}
+
+
+
+	/**
+	 * get_current_view
+	 *
+	 * @return string _current_view property value
+	 */
+	public function get_current_view()
+	{
+		return $this->_current_view;
+	}
+
+
+
+	/**
+	 * get_current_screen
+	 *
+	 * @return object The current WP_Screen object
+	 */
+	public function get_current_screen()
+	{
+		return $this->_current_screen;
+	}
+
+
+
+	/**
+	 * get_current_page_view_url
+	 *
+	 * @return string This returns the url for the current_page_view.
+	 */
+	public function get_current_page_view_url()
+	{
+		return $this->_current_page_view_url;
+	}
+
+
+
+	/**
+	 * just returns the _req_data property
+	 *
+	 * @return array
+	 */
+	public function get_request_data()
+	{
+		return $this->_req_data;
+	}
+
+
+
+	/**
+	 * returns the _req_data protected property
+	 *
+	 * @return string
+	 */
+	public function get_req_action()
+	{
+		return $this->_req_action;
+	}
+
+
+
+	/**
+	 * @return bool  value of $_is_caf property
+	 */
+	public function is_caf()
+	{
+		return $this->_is_caf;
+	}
+
+
+
+	/**
+	 * @return mixed
+	 */
+	public function default_espresso_metaboxes()
+	{
+		return $this->_default_espresso_metaboxes;
+	}
+
+
+
+	/**
+	 * @return mixed
+	 */
+	public function admin_base_url()
+	{
+		return $this->_admin_base_url;
+	}
 
 
 
-    /**
-     * @return mixed
-     */
-    public function wp_page_slug()
-    {
-        return $this->_wp_page_slug;
-    }
+	/**
+	 * @return mixed
+	 */
+	public function wp_page_slug()
+	{
+		return $this->_wp_page_slug;
+	}
 
 
-
-    /**
-     * updates  espresso configuration settings
-     *
-     * @param string                   $tab
-     * @param EE_Config_Base|EE_Config $config
-     * @param string                   $file file where error occurred
-     * @param string                   $func function  where error occurred
-     * @param string                   $line line no where error occurred
-     * @return boolean
-     */
-    protected function _update_espresso_configuration($tab, $config, $file = '', $func = '', $line = '')
-    {
-        //remove any options that are NOT going to be saved with the config settings.
-        if (isset($config->core->ee_ueip_optin)) {
-            $config->core->ee_ueip_has_notified = true;
-            // TODO: remove the following two lines and make sure values are migrated from 3.1
-            update_option('ee_ueip_optin', $config->core->ee_ueip_optin);
-            update_option('ee_ueip_has_notified', true);
-        }
-        // and save it (note we're also doing the network save here)
-        $net_saved    = is_main_site() ? EE_Network_Config::instance()->update_config(false, false) : true;
-        $config_saved = EE_Config::instance()->update_espresso_config(false, false);
-        if ($config_saved && $net_saved) {
-            EE_Error::add_success(sprintf(__('"%s" have been successfully updated.', 'event_espresso'), $tab));
-            return true;
-        }
-        EE_Error::add_error(sprintf(__('The "%s" were not updated.', 'event_espresso'), $tab), $file, $func, $line);
-        return false;
-    }
-
-
-
-    /**
-     * Returns an array to be used for EE_FOrm_Fields.helper.php's select_input as the $values argument.
-     *
-     * @return array
-     */
-    public function get_yes_no_values()
-    {
-        return $this->_yes_no_values;
-    }
-
-
-
-    protected function _get_dir()
-    {
-        $reflector = new ReflectionClass(get_class($this));
-        return dirname($reflector->getFileName());
-    }
-
-
-
-    /**
-     * A helper for getting a "next link".
-     *
-     * @param string $url   The url to link to
-     * @param string $class The class to use.
-     * @return string
-     */
-    protected function _next_link($url, $class = 'dashicons dashicons-arrow-right')
-    {
-        return '<a class="' . $class . '" href="' . $url . '"></a>';
-    }
-
-
-
-    /**
-     * A helper for getting a "previous link".
-     *
-     * @param string $url   The url to link to
-     * @param string $class The class to use.
-     * @return string
-     */
-    protected function _previous_link($url, $class = 'dashicons dashicons-arrow-left')
-    {
-        return '<a class="' . $class . '" href="' . $url . '"></a>';
-    }
-
-
-
-
-
-
-
-    //below are some messages related methods that should be available across the EE_Admin system.  Note, these methods are NOT page specific
-
-
-    /**
-     * This processes an request to resend a registration and assumes we have a _REG_ID for doing so. So if the caller
-     * knows that the _REG_ID isn't in the req_data array but CAN obtain it, the caller should ADD the _REG_ID to the
-     * _req_data array.
-     *
-     * @return bool success/fail
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _process_resend_registration()
-    {
-        $this->_template_args['success'] = EED_Messages::process_resend($this->_req_data);
-        do_action(
-            'AHEE__EE_Admin_Page___process_resend_registration',
-            $this->_template_args['success'],
-            $this->_req_data
-        );
-        return $this->_template_args['success'];
-    }
-
-
-
-    /**
-     * This automatically processes any payment message notifications when manual payment has been applied.
-     *
-     * @param \EE_Payment $payment
-     * @return bool success/fail
-     */
-    protected function _process_payment_notification(EE_Payment $payment)
-    {
-        add_filter('FHEE__EE_Payment_Processor__process_registration_payments__display_notifications', '__return_true');
-        do_action('AHEE__EE_Admin_Page___process_admin_payment_notification', $payment);
-        $this->_template_args['success'] = apply_filters(
-            'FHEE__EE_Admin_Page___process_admin_payment_notification__success',
-            false,
-            $payment
-        );
-        return $this->_template_args['success'];
-    }
+
+	/**
+	 * updates  espresso configuration settings
+	 *
+	 * @param string                   $tab
+	 * @param EE_Config_Base|EE_Config $config
+	 * @param string                   $file file where error occurred
+	 * @param string                   $func function  where error occurred
+	 * @param string                   $line line no where error occurred
+	 * @return boolean
+	 */
+	protected function _update_espresso_configuration($tab, $config, $file = '', $func = '', $line = '')
+	{
+		//remove any options that are NOT going to be saved with the config settings.
+		if (isset($config->core->ee_ueip_optin)) {
+			$config->core->ee_ueip_has_notified = true;
+			// TODO: remove the following two lines and make sure values are migrated from 3.1
+			update_option('ee_ueip_optin', $config->core->ee_ueip_optin);
+			update_option('ee_ueip_has_notified', true);
+		}
+		// and save it (note we're also doing the network save here)
+		$net_saved    = is_main_site() ? EE_Network_Config::instance()->update_config(false, false) : true;
+		$config_saved = EE_Config::instance()->update_espresso_config(false, false);
+		if ($config_saved && $net_saved) {
+			EE_Error::add_success(sprintf(__('"%s" have been successfully updated.', 'event_espresso'), $tab));
+			return true;
+		}
+		EE_Error::add_error(sprintf(__('The "%s" were not updated.', 'event_espresso'), $tab), $file, $func, $line);
+		return false;
+	}
+
+
+
+	/**
+	 * Returns an array to be used for EE_FOrm_Fields.helper.php's select_input as the $values argument.
+	 *
+	 * @return array
+	 */
+	public function get_yes_no_values()
+	{
+		return $this->_yes_no_values;
+	}
+
+
+
+	protected function _get_dir()
+	{
+		$reflector = new ReflectionClass(get_class($this));
+		return dirname($reflector->getFileName());
+	}
+
+
+
+	/**
+	 * A helper for getting a "next link".
+	 *
+	 * @param string $url   The url to link to
+	 * @param string $class The class to use.
+	 * @return string
+	 */
+	protected function _next_link($url, $class = 'dashicons dashicons-arrow-right')
+	{
+		return '<a class="' . $class . '" href="' . $url . '"></a>';
+	}
+
+
+
+	/**
+	 * A helper for getting a "previous link".
+	 *
+	 * @param string $url   The url to link to
+	 * @param string $class The class to use.
+	 * @return string
+	 */
+	protected function _previous_link($url, $class = 'dashicons dashicons-arrow-left')
+	{
+		return '<a class="' . $class . '" href="' . $url . '"></a>';
+	}
+
+
+
+
+
+
+
+	//below are some messages related methods that should be available across the EE_Admin system.  Note, these methods are NOT page specific
+
+
+	/**
+	 * This processes an request to resend a registration and assumes we have a _REG_ID for doing so. So if the caller
+	 * knows that the _REG_ID isn't in the req_data array but CAN obtain it, the caller should ADD the _REG_ID to the
+	 * _req_data array.
+	 *
+	 * @return bool success/fail
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _process_resend_registration()
+	{
+		$this->_template_args['success'] = EED_Messages::process_resend($this->_req_data);
+		do_action(
+			'AHEE__EE_Admin_Page___process_resend_registration',
+			$this->_template_args['success'],
+			$this->_req_data
+		);
+		return $this->_template_args['success'];
+	}
+
+
+
+	/**
+	 * This automatically processes any payment message notifications when manual payment has been applied.
+	 *
+	 * @param \EE_Payment $payment
+	 * @return bool success/fail
+	 */
+	protected function _process_payment_notification(EE_Payment $payment)
+	{
+		add_filter('FHEE__EE_Payment_Processor__process_registration_payments__display_notifications', '__return_true');
+		do_action('AHEE__EE_Admin_Page___process_admin_payment_notification', $payment);
+		$this->_template_args['success'] = apply_filters(
+			'FHEE__EE_Admin_Page___process_admin_payment_notification__success',
+			false,
+			$payment
+		);
+		return $this->_template_args['success'];
+	}
 
 
 }

core/db_models/EEM_Transaction.model.php

Indentation +405 added lines, -405 removed lines

@@ -5,7 +5,7 @@ 
 use EventEspresso\core\services\loaders\LoaderFactory;
 
 if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 require_once(EE_MODELS . 'EEM_Base.model.php');
 
@@ -21,193 +21,193 @@ 
 class EEM_Transaction extends EEM_Base
 {
 
-    // private instance of the Transaction object
-    protected static $_instance;
-
-    /**
-     * Status ID(STS_ID on esp_status table) to indicate the transaction is complete,
-     * but payment is pending. This is the state for transactions where payment is promised
-     * from an offline gateway.
-     */
-    //	const open_status_code = 'TPN';
-
-    /**
-     * Status ID(STS_ID on esp_status table) to indicate the transaction failed,
-     * either due to a technical reason (server or computer crash during registration),
-     *  or some other reason that prevent the collection of any useful contact information from any of the registrants
-     */
-    const failed_status_code = 'TFL';
-
-    /**
-     * Status ID(STS_ID on esp_status table) to indicate the transaction was abandoned,
-     * either due to a technical reason (server or computer crash during registration),
-     * or due to an abandoned cart after registrant chose not to complete the registration process
-     * HOWEVER...
-     * an abandoned TXN differs from a failed TXN in that it was able to capture contact information for at least one
-     * registrant
-     */
-    const abandoned_status_code = 'TAB';
-
-    /**
-     * Status ID(STS_ID on esp_status table) to indicate an incomplete transaction,
-     * meaning that monies are still owing: TXN_paid < TXN_total
-     */
-    const incomplete_status_code = 'TIN';
-
-    /**
-     * Status ID (STS_ID on esp_status table) to indicate a complete transaction.
-     * meaning that NO monies are owing: TXN_paid == TXN_total
-     */
-    const complete_status_code = 'TCM';
-
-    /**
-     *  Status ID(STS_ID on esp_status table) to indicate the transaction is overpaid.
-     *  This is the same as complete, but site admins actually owe clients the moneys!  TXN_paid > TXN_total
-     */
-    const overpaid_status_code = 'TOP';
-
-
-    /**
-     *    private constructor to prevent direct creation
-     *
-     * @Constructor
-     * @access protected
-     *
-     * @param string $timezone string representing the timezone we want to set for returned Date Time Strings (and any
-     *                         incoming timezone data that gets saved). Note this just sends the timezone info to the
-     *                         date time model field objects.  Default is NULL (and will be assumed using the set
-     *                         timezone in the 'timezone_string' wp option)
-     *
-     * @return EEM_Transaction
-     * @throws \EE_Error
-     */
-    protected function __construct($timezone)
-    {
-        $this->singular_item = __('Transaction', 'event_espresso');
-        $this->plural_item   = __('Transactions', 'event_espresso');
-
-        $this->_tables                 = array(
-            'TransactionTable' => new EE_Primary_Table('esp_transaction', 'TXN_ID')
-        );
-        $this->_fields                 = array(
-            'TransactionTable' => array(
-                'TXN_ID'           => new EE_Primary_Key_Int_Field('TXN_ID', __('Transaction ID', 'event_espresso')),
-                'TXN_timestamp'    => new EE_Datetime_Field('TXN_timestamp',
-                    __('date when transaction was created', 'event_espresso'), false, EE_Datetime_Field::now,
-                    $timezone),
-                'TXN_total'        => new EE_Money_Field('TXN_total',
-                    __('Total value of Transaction', 'event_espresso'), false, 0),
-                'TXN_paid'         => new EE_Money_Field('TXN_paid',
-                    __('Amount paid towards transaction to date', 'event_espresso'), false, 0),
-                'STS_ID'           => new EE_Foreign_Key_String_Field('STS_ID', __('Status ID', 'event_espresso'),
-                    false, EEM_Transaction::failed_status_code, 'Status'),
-                'TXN_session_data' => new EE_Serialized_Text_Field('TXN_session_data',
-                    __('Serialized session data', 'event_espresso'), true, ''),
-                'TXN_hash_salt'    => new EE_Plain_Text_Field('TXN_hash_salt',
-                    __('Transaction Hash Salt', 'event_espresso'), true, ''),
-                'PMD_ID'           => new EE_Foreign_Key_Int_Field('PMD_ID',
-                    __("Last Used Payment Method", 'event_espresso'), true, null, 'Payment_Method'),
-                'TXN_reg_steps'    => new EE_Serialized_Text_Field('TXN_reg_steps',
-                    __('Registration Steps', 'event_espresso'), false, array()),
-            )
-        );
-        $this->_model_relations        = array(
-            'Registration'   => new EE_Has_Many_Relation(),
-            'Payment'        => new EE_Has_Many_Relation(),
-            'Status'         => new EE_Belongs_To_Relation(),
-            'Line_Item'      => new EE_Has_Many_Relation(false),
-            //you can delete a transaction without needing to delete its line items
-            'Payment_Method' => new EE_Belongs_To_Relation(),
-            'Message'        => new EE_Has_Many_Relation()
-        );
-        $this->_model_chain_to_wp_user = 'Registration.Event';
-        parent::__construct($timezone);
-
-    }
-
-
-    /**
-     *    txn_status_array
-     * get list of transaction statuses
-     *
-     * @access public
-     * @return array
-     */
-    public static function txn_status_array()
-    {
-        return apply_filters(
-            'FHEE__EEM_Transaction__txn_status_array',
-            array(
-                EEM_Transaction::overpaid_status_code,
-                EEM_Transaction::complete_status_code,
-                EEM_Transaction::incomplete_status_code,
-                EEM_Transaction::abandoned_status_code,
-                EEM_Transaction::failed_status_code,
-            )
-        );
-    }
-
-    /**
-     *        get the revenue per day  for the Transaction Admin page Reports Tab
-     *
-     * @access        public
-     *
-     * @param string $period
-     *
-     * @return \stdClass[]
-     */
-    public function get_revenue_per_day_report($period = '-1 month')
-    {
-        $sql_date = $this->convert_datetime_for_query('TXN_timestamp', date('Y-m-d H:i:s', strtotime($period)),
-            'Y-m-d H:i:s', 'UTC');
-
-        $query_interval = EEH_DTT_Helper::get_sql_query_interval_for_offset($this->get_timezone(), 'TXN_timestamp');
-
-        return $this->_get_all_wpdb_results(
-            array(
-                array(
-                    'TXN_timestamp' => array('>=', $sql_date)
-                ),
-                'group_by' => 'txnDate',
-                'order_by' => array('TXN_timestamp' => 'ASC')
-            ),
-            OBJECT,
-            array(
-                'txnDate' => array('DATE(' . $query_interval . ')', '%s'),
-                'revenue' => array('SUM(TransactionTable.TXN_paid)', '%d')
-            )
-        );
-    }
-
-
-    /**
-     *        get the revenue per event  for the Transaction Admin page Reports Tab
-     *
-     * @access        public
-     *
-     * @param string $period
-     *
-     * @throws \EE_Error
-     * @return mixed
-     */
-    public function get_revenue_per_event_report($period = '-1 month')
-    {
-        global $wpdb;
-        $transaction_table          = $wpdb->prefix . 'esp_transaction';
-        $registration_table         = $wpdb->prefix . 'esp_registration';
-        $registration_payment_table = $wpdb->prefix . 'esp_registration_payment';
-        $event_table                = $wpdb->posts;
-        $payment_table              = $wpdb->prefix . 'esp_payment';
-        $sql_date                   = date('Y-m-d H:i:s', strtotime($period));
-        $approved_payment_status    = EEM_Payment::status_id_approved;
-        $extra_event_on_join        = '';
-        //exclude events not authored by user if permissions in effect
-        if ( ! EE_Registry::instance()->CAP->current_user_can('ee_read_others_registrations', 'reg_per_event_report')) {
-            $extra_event_on_join = ' AND Event.post_author = ' . get_current_user_id();
-        }
-
-        return $wpdb->get_results(
-            "SELECT
+	// private instance of the Transaction object
+	protected static $_instance;
+
+	/**
+	 * Status ID(STS_ID on esp_status table) to indicate the transaction is complete,
+	 * but payment is pending. This is the state for transactions where payment is promised
+	 * from an offline gateway.
+	 */
+	//	const open_status_code = 'TPN';
+
+	/**
+	 * Status ID(STS_ID on esp_status table) to indicate the transaction failed,
+	 * either due to a technical reason (server or computer crash during registration),
+	 *  or some other reason that prevent the collection of any useful contact information from any of the registrants
+	 */
+	const failed_status_code = 'TFL';
+
+	/**
+	 * Status ID(STS_ID on esp_status table) to indicate the transaction was abandoned,
+	 * either due to a technical reason (server or computer crash during registration),
+	 * or due to an abandoned cart after registrant chose not to complete the registration process
+	 * HOWEVER...
+	 * an abandoned TXN differs from a failed TXN in that it was able to capture contact information for at least one
+	 * registrant
+	 */
+	const abandoned_status_code = 'TAB';
+
+	/**
+	 * Status ID(STS_ID on esp_status table) to indicate an incomplete transaction,
+	 * meaning that monies are still owing: TXN_paid < TXN_total
+	 */
+	const incomplete_status_code = 'TIN';
+
+	/**
+	 * Status ID (STS_ID on esp_status table) to indicate a complete transaction.
+	 * meaning that NO monies are owing: TXN_paid == TXN_total
+	 */
+	const complete_status_code = 'TCM';
+
+	/**
+	 *  Status ID(STS_ID on esp_status table) to indicate the transaction is overpaid.
+	 *  This is the same as complete, but site admins actually owe clients the moneys!  TXN_paid > TXN_total
+	 */
+	const overpaid_status_code = 'TOP';
+
+
+	/**
+	 *    private constructor to prevent direct creation
+	 *
+	 * @Constructor
+	 * @access protected
+	 *
+	 * @param string $timezone string representing the timezone we want to set for returned Date Time Strings (and any
+	 *                         incoming timezone data that gets saved). Note this just sends the timezone info to the
+	 *                         date time model field objects.  Default is NULL (and will be assumed using the set
+	 *                         timezone in the 'timezone_string' wp option)
+	 *
+	 * @return EEM_Transaction
+	 * @throws \EE_Error
+	 */
+	protected function __construct($timezone)
+	{
+		$this->singular_item = __('Transaction', 'event_espresso');
+		$this->plural_item   = __('Transactions', 'event_espresso');
+
+		$this->_tables                 = array(
+			'TransactionTable' => new EE_Primary_Table('esp_transaction', 'TXN_ID')
+		);
+		$this->_fields                 = array(
+			'TransactionTable' => array(
+				'TXN_ID'           => new EE_Primary_Key_Int_Field('TXN_ID', __('Transaction ID', 'event_espresso')),
+				'TXN_timestamp'    => new EE_Datetime_Field('TXN_timestamp',
+					__('date when transaction was created', 'event_espresso'), false, EE_Datetime_Field::now,
+					$timezone),
+				'TXN_total'        => new EE_Money_Field('TXN_total',
+					__('Total value of Transaction', 'event_espresso'), false, 0),
+				'TXN_paid'         => new EE_Money_Field('TXN_paid',
+					__('Amount paid towards transaction to date', 'event_espresso'), false, 0),
+				'STS_ID'           => new EE_Foreign_Key_String_Field('STS_ID', __('Status ID', 'event_espresso'),
+					false, EEM_Transaction::failed_status_code, 'Status'),
+				'TXN_session_data' => new EE_Serialized_Text_Field('TXN_session_data',
+					__('Serialized session data', 'event_espresso'), true, ''),
+				'TXN_hash_salt'    => new EE_Plain_Text_Field('TXN_hash_salt',
+					__('Transaction Hash Salt', 'event_espresso'), true, ''),
+				'PMD_ID'           => new EE_Foreign_Key_Int_Field('PMD_ID',
+					__("Last Used Payment Method", 'event_espresso'), true, null, 'Payment_Method'),
+				'TXN_reg_steps'    => new EE_Serialized_Text_Field('TXN_reg_steps',
+					__('Registration Steps', 'event_espresso'), false, array()),
+			)
+		);
+		$this->_model_relations        = array(
+			'Registration'   => new EE_Has_Many_Relation(),
+			'Payment'        => new EE_Has_Many_Relation(),
+			'Status'         => new EE_Belongs_To_Relation(),
+			'Line_Item'      => new EE_Has_Many_Relation(false),
+			//you can delete a transaction without needing to delete its line items
+			'Payment_Method' => new EE_Belongs_To_Relation(),
+			'Message'        => new EE_Has_Many_Relation()
+		);
+		$this->_model_chain_to_wp_user = 'Registration.Event';
+		parent::__construct($timezone);
+
+	}
+
+
+	/**
+	 *    txn_status_array
+	 * get list of transaction statuses
+	 *
+	 * @access public
+	 * @return array
+	 */
+	public static function txn_status_array()
+	{
+		return apply_filters(
+			'FHEE__EEM_Transaction__txn_status_array',
+			array(
+				EEM_Transaction::overpaid_status_code,
+				EEM_Transaction::complete_status_code,
+				EEM_Transaction::incomplete_status_code,
+				EEM_Transaction::abandoned_status_code,
+				EEM_Transaction::failed_status_code,
+			)
+		);
+	}
+
+	/**
+	 *        get the revenue per day  for the Transaction Admin page Reports Tab
+	 *
+	 * @access        public
+	 *
+	 * @param string $period
+	 *
+	 * @return \stdClass[]
+	 */
+	public function get_revenue_per_day_report($period = '-1 month')
+	{
+		$sql_date = $this->convert_datetime_for_query('TXN_timestamp', date('Y-m-d H:i:s', strtotime($period)),
+			'Y-m-d H:i:s', 'UTC');
+
+		$query_interval = EEH_DTT_Helper::get_sql_query_interval_for_offset($this->get_timezone(), 'TXN_timestamp');
+
+		return $this->_get_all_wpdb_results(
+			array(
+				array(
+					'TXN_timestamp' => array('>=', $sql_date)
+				),
+				'group_by' => 'txnDate',
+				'order_by' => array('TXN_timestamp' => 'ASC')
+			),
+			OBJECT,
+			array(
+				'txnDate' => array('DATE(' . $query_interval . ')', '%s'),
+				'revenue' => array('SUM(TransactionTable.TXN_paid)', '%d')
+			)
+		);
+	}
+
+
+	/**
+	 *        get the revenue per event  for the Transaction Admin page Reports Tab
+	 *
+	 * @access        public
+	 *
+	 * @param string $period
+	 *
+	 * @throws \EE_Error
+	 * @return mixed
+	 */
+	public function get_revenue_per_event_report($period = '-1 month')
+	{
+		global $wpdb;
+		$transaction_table          = $wpdb->prefix . 'esp_transaction';
+		$registration_table         = $wpdb->prefix . 'esp_registration';
+		$registration_payment_table = $wpdb->prefix . 'esp_registration_payment';
+		$event_table                = $wpdb->posts;
+		$payment_table              = $wpdb->prefix . 'esp_payment';
+		$sql_date                   = date('Y-m-d H:i:s', strtotime($period));
+		$approved_payment_status    = EEM_Payment::status_id_approved;
+		$extra_event_on_join        = '';
+		//exclude events not authored by user if permissions in effect
+		if ( ! EE_Registry::instance()->CAP->current_user_can('ee_read_others_registrations', 'reg_per_event_report')) {
+			$extra_event_on_join = ' AND Event.post_author = ' . get_current_user_id();
+		}
+
+		return $wpdb->get_results(
+			"SELECT
 			Transaction_Event.event_name AS event_name,
 			SUM(Transaction_Event.paid) AS revenue
 			FROM
@@ -235,227 +235,227 @@ 
 					$extra_event_on_join
 				) AS Transaction_Event
 			GROUP BY event_name",
-            OBJECT
-        );
-    }
-
-
-    /**
-     * Gets the current transaction given the reg_url_link, or assumes the reg_url_link is in the
-     * $_REQUEST global variable. Either way, tries to find the current transaction (through
-     * the registration pointed to by reg_url_link), if not returns null
-     *
-     * @param string $reg_url_link
-     *
-     * @return EE_Transaction
-     */
-    public function get_transaction_from_reg_url_link($reg_url_link = '')
-    {
-        return $this->get_one(array(
-            array(
-                'Registration.REG_url_link' => ! empty($reg_url_link) ? $reg_url_link : EE_Registry::instance()->REQ->get('e_reg_url_link',
-                    '')
-            )
-        ));
-    }
-
-
-    /**
-     * Updates the provided EE_Transaction with all the applicable payments
-     * (or fetch the EE_Transaction from its ID)
-     *
-     * @deprecated
-     *
-     * @param EE_Transaction|int $transaction_obj_or_id
-     * @param boolean            $save_txn whether or not to save the transaction during this function call
-     *
-     * @return boolean
-     * @throws \EE_Error
-     */
-    public function update_based_on_payments($transaction_obj_or_id, $save_txn = true)
-    {
-        EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FUNCTION__,
-            sprintf(__('This method is deprecated. Please use "%s" instead', 'event_espresso'),
-                'EE_Transaction_Processor::update_transaction_and_registrations_after_checkout_or_payment()'),
-            '4.6.0'
-        );
-        /** @type EE_Transaction_Processor $transaction_processor */
-        $transaction_processor = EE_Registry::instance()->load_class('Transaction_Processor');
-
-        return $transaction_processor->update_transaction_and_registrations_after_checkout_or_payment(
-            $this->ensure_is_obj($transaction_obj_or_id)
-        );
-    }
-
-    /**
-     * Deletes "junk" transactions that were probably added by bots. There might be TONS
-     * of these, so we are very careful to NOT select (which the models do even when deleting),
-     * and so we only use wpdb directly and only do minimal joins.
-     * Transactions are considered "junk" if they're failed for longer than a week.
-     * Also, there is an extra check for payments related to the transaction, because if a transaction has a payment on
-     * it, it's probably not junk (regardless of what status it has).
-     * The downside to this approach is that is addons are listening for object deletions
-     * on EEM_Base::delete() they won't be notified of this.  However, there is an action that plugins can hook into
-     * to catch these types of deletions.
-     *
-     * @global WPDB $wpdb
-     * @return mixed
-     */
-    public function delete_junk_transactions()
-    {
-        /** @type WPDB $wpdb */
-        global $wpdb;
-        $deleted             = false;
-        $time_to_leave_alone = apply_filters(
-            'FHEE__EEM_Transaction__delete_junk_transactions__time_to_leave_alone'
-            , WEEK_IN_SECONDS
-        );
-
-
-        /**
-         * This allows code to filter the query arguments used for retrieving the transaction IDs to delete.
-         * Useful for plugins that want to exclude transactions matching certain query parameters.
-         * The query parameters should be in the format accepted by the EEM_Base model queries.
-         */
-        $ids_query = apply_filters(
-            'FHEE__EEM_Transaction__delete_junk_transactions__initial_query_args',
-            array(
-                0 => array(
-                    'STS_ID'        => EEM_Transaction::failed_status_code,
-                    'Payment.PAY_ID' => array( 'IS NULL' ),
-                    'TXN_timestamp' => array('<', time() - $time_to_leave_alone)
-                )
-            ),
-            $time_to_leave_alone
-        );
-
-
-        /**
-         * This filter is for when code needs to filter the list of transaction ids that represent transactions
-         * about to be deleted based on some other criteria that isn't easily done via the query args filter.
-         */
-        $txn_ids = apply_filters(
-            'FHEE__EEM_Transaction__delete_junk_transactions__transaction_ids_to_delete',
-            EEM_Transaction::instance()->get_col($ids_query, 'TXN_ID'),
-            $time_to_leave_alone
-        );
-        //now that we have the ids to delete
-        if (! empty($txn_ids) && is_array($txn_ids)) {
-            // first, make sure these TXN's are removed the "ee_locked_transactions" array
-            EEM_Transaction::unset_locked_transactions($txn_ids);
-            // let's get deletin'...
-            // Why no wpdb->prepare?  Because the data is trusted.
-            // We got the ids from the original query to get them FROM
-            // the db (which is sanitized) so no need to prepare them again.
-            $query   = '
+			OBJECT
+		);
+	}
+
+
+	/**
+	 * Gets the current transaction given the reg_url_link, or assumes the reg_url_link is in the
+	 * $_REQUEST global variable. Either way, tries to find the current transaction (through
+	 * the registration pointed to by reg_url_link), if not returns null
+	 *
+	 * @param string $reg_url_link
+	 *
+	 * @return EE_Transaction
+	 */
+	public function get_transaction_from_reg_url_link($reg_url_link = '')
+	{
+		return $this->get_one(array(
+			array(
+				'Registration.REG_url_link' => ! empty($reg_url_link) ? $reg_url_link : EE_Registry::instance()->REQ->get('e_reg_url_link',
+					'')
+			)
+		));
+	}
+
+
+	/**
+	 * Updates the provided EE_Transaction with all the applicable payments
+	 * (or fetch the EE_Transaction from its ID)
+	 *
+	 * @deprecated
+	 *
+	 * @param EE_Transaction|int $transaction_obj_or_id
+	 * @param boolean            $save_txn whether or not to save the transaction during this function call
+	 *
+	 * @return boolean
+	 * @throws \EE_Error
+	 */
+	public function update_based_on_payments($transaction_obj_or_id, $save_txn = true)
+	{
+		EE_Error::doing_it_wrong(
+			__CLASS__ . '::' . __FUNCTION__,
+			sprintf(__('This method is deprecated. Please use "%s" instead', 'event_espresso'),
+				'EE_Transaction_Processor::update_transaction_and_registrations_after_checkout_or_payment()'),
+			'4.6.0'
+		);
+		/** @type EE_Transaction_Processor $transaction_processor */
+		$transaction_processor = EE_Registry::instance()->load_class('Transaction_Processor');
+
+		return $transaction_processor->update_transaction_and_registrations_after_checkout_or_payment(
+			$this->ensure_is_obj($transaction_obj_or_id)
+		);
+	}
+
+	/**
+	 * Deletes "junk" transactions that were probably added by bots. There might be TONS
+	 * of these, so we are very careful to NOT select (which the models do even when deleting),
+	 * and so we only use wpdb directly and only do minimal joins.
+	 * Transactions are considered "junk" if they're failed for longer than a week.
+	 * Also, there is an extra check for payments related to the transaction, because if a transaction has a payment on
+	 * it, it's probably not junk (regardless of what status it has).
+	 * The downside to this approach is that is addons are listening for object deletions
+	 * on EEM_Base::delete() they won't be notified of this.  However, there is an action that plugins can hook into
+	 * to catch these types of deletions.
+	 *
+	 * @global WPDB $wpdb
+	 * @return mixed
+	 */
+	public function delete_junk_transactions()
+	{
+		/** @type WPDB $wpdb */
+		global $wpdb;
+		$deleted             = false;
+		$time_to_leave_alone = apply_filters(
+			'FHEE__EEM_Transaction__delete_junk_transactions__time_to_leave_alone'
+			, WEEK_IN_SECONDS
+		);
+
+
+		/**
+		 * This allows code to filter the query arguments used for retrieving the transaction IDs to delete.
+		 * Useful for plugins that want to exclude transactions matching certain query parameters.
+		 * The query parameters should be in the format accepted by the EEM_Base model queries.
+		 */
+		$ids_query = apply_filters(
+			'FHEE__EEM_Transaction__delete_junk_transactions__initial_query_args',
+			array(
+				0 => array(
+					'STS_ID'        => EEM_Transaction::failed_status_code,
+					'Payment.PAY_ID' => array( 'IS NULL' ),
+					'TXN_timestamp' => array('<', time() - $time_to_leave_alone)
+				)
+			),
+			$time_to_leave_alone
+		);
+
+
+		/**
+		 * This filter is for when code needs to filter the list of transaction ids that represent transactions
+		 * about to be deleted based on some other criteria that isn't easily done via the query args filter.
+		 */
+		$txn_ids = apply_filters(
+			'FHEE__EEM_Transaction__delete_junk_transactions__transaction_ids_to_delete',
+			EEM_Transaction::instance()->get_col($ids_query, 'TXN_ID'),
+			$time_to_leave_alone
+		);
+		//now that we have the ids to delete
+		if (! empty($txn_ids) && is_array($txn_ids)) {
+			// first, make sure these TXN's are removed the "ee_locked_transactions" array
+			EEM_Transaction::unset_locked_transactions($txn_ids);
+			// let's get deletin'...
+			// Why no wpdb->prepare?  Because the data is trusted.
+			// We got the ids from the original query to get them FROM
+			// the db (which is sanitized) so no need to prepare them again.
+			$query   = '
 				DELETE
 				FROM ' . $this->table() . '
 				WHERE
 					TXN_ID IN ( ' . implode(",", $txn_ids) . ')';
-            $deleted = $wpdb->query($query);
-        }
-        if ($deleted) {
-            /**
-             * Allows code to do something after the transactions have been deleted.
-             */
-            do_action('AHEE__EEM_Transaction__delete_junk_transactions__successful_deletion', $txn_ids);
-        }
-
-        return $deleted;
-    }
-
-
-    /**
-     * @param array $transaction_IDs
-     *
-     * @return bool
-     */
-    public static function unset_locked_transactions(array $transaction_IDs)
-    {
-        $locked_transactions = get_option('ee_locked_transactions', array());
-        $update              = false;
-        foreach ($transaction_IDs as $TXN_ID) {
-            if (isset($locked_transactions[$TXN_ID])) {
-                unset($locked_transactions[$TXN_ID]);
-                $update = true;
-            }
-        }
-        if ($update) {
-            update_option('ee_locked_transactions', $locked_transactions);
-        }
-
-        return $update;
-    }
-
-
-
-    /**
-     * returns an array of EE_Transaction objects whose timestamp is greater than
-     * the current time minus the session lifespan, which defaults to 60 minutes
-     *
-     * @return EE_Base_Class[]|EE_Transaction[]
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function get_transactions_in_progress()
-    {
-        return $this->_get_transactions_in_progress();
-    }
-
-
-
-    /**
-     * returns an array of EE_Transaction objects whose timestamp is less than
-     * the current time minus the session lifespan, which defaults to 60 minutes
-     *
-     * @return EE_Base_Class[]|EE_Transaction[]
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function get_transactions_not_in_progress()
-    {
-        return $this->_get_transactions_in_progress('<=');
-    }
-
-
-
-    /**
-     * @param string $comparison
-     * @return EE_Base_Class[]|EE_Transaction[]
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _get_transactions_in_progress($comparison = '>=')
-    {
-        $comparison = $comparison === '>=' || $comparison === '<='
-            ? $comparison
-            : '>=';
-        /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
-        $session_lifespan = LoaderFactory::getLoader()->getShared(
-            'EventEspresso\core\domain\values\session\SessionLifespan'
-        );
-        return $this->get_all(
-            array(
-                array(
-                    'TXN_timestamp' => array(
-                        $comparison,
-                        $session_lifespan->expiration()
-                    ),
-                    'STS_ID' => array(
-                        '!=',
-                        EEM_Transaction::complete_status_code
-                    ),
-                )
-            )
-        );
-    }
+			$deleted = $wpdb->query($query);
+		}
+		if ($deleted) {
+			/**
+			 * Allows code to do something after the transactions have been deleted.
+			 */
+			do_action('AHEE__EEM_Transaction__delete_junk_transactions__successful_deletion', $txn_ids);
+		}
+
+		return $deleted;
+	}
+
+
+	/**
+	 * @param array $transaction_IDs
+	 *
+	 * @return bool
+	 */
+	public static function unset_locked_transactions(array $transaction_IDs)
+	{
+		$locked_transactions = get_option('ee_locked_transactions', array());
+		$update              = false;
+		foreach ($transaction_IDs as $TXN_ID) {
+			if (isset($locked_transactions[$TXN_ID])) {
+				unset($locked_transactions[$TXN_ID]);
+				$update = true;
+			}
+		}
+		if ($update) {
+			update_option('ee_locked_transactions', $locked_transactions);
+		}
+
+		return $update;
+	}
+
+
+
+	/**
+	 * returns an array of EE_Transaction objects whose timestamp is greater than
+	 * the current time minus the session lifespan, which defaults to 60 minutes
+	 *
+	 * @return EE_Base_Class[]|EE_Transaction[]
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function get_transactions_in_progress()
+	{
+		return $this->_get_transactions_in_progress();
+	}
+
+
+
+	/**
+	 * returns an array of EE_Transaction objects whose timestamp is less than
+	 * the current time minus the session lifespan, which defaults to 60 minutes
+	 *
+	 * @return EE_Base_Class[]|EE_Transaction[]
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function get_transactions_not_in_progress()
+	{
+		return $this->_get_transactions_in_progress('<=');
+	}
+
+
+
+	/**
+	 * @param string $comparison
+	 * @return EE_Base_Class[]|EE_Transaction[]
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _get_transactions_in_progress($comparison = '>=')
+	{
+		$comparison = $comparison === '>=' || $comparison === '<='
+			? $comparison
+			: '>=';
+		/** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
+		$session_lifespan = LoaderFactory::getLoader()->getShared(
+			'EventEspresso\core\domain\values\session\SessionLifespan'
+		);
+		return $this->get_all(
+			array(
+				array(
+					'TXN_timestamp' => array(
+						$comparison,
+						$session_lifespan->expiration()
+					),
+					'STS_ID' => array(
+						'!=',
+						EEM_Transaction::complete_status_code
+					),
+				)
+			)
+		);
+	}
 
 
 }

core/db_models/EEM_Line_Item.model.php

Indentation +382 added lines, -382 removed lines

@@ -47,391 +47,391 @@
 class EEM_Line_Item extends EEM_Base
 {
 
-    /**
-     * Tax sub-total is just the total of all the taxes, which should be children
-     * of this line item. There should only ever be one tax sub-total, and it should
-     * be a direct child of
-     */
-    const type_tax_sub_total = 'tax-sub-total';
-
-    /**
-     * Tax line items indicate a tax applied to all the taxable line items.
-     * Should not have any children line items.
-     */
-    const type_tax = 'tax';
-
-    /**
-     * Indicating individual items purchased, or discounts or surcharges.
-     * The sum of all the regular line items  plus the tax items should equal
-     * the grand total.
-     * Possible children fo sub-line-items and cancellations.
-     */
-    const type_line_item = 'line-item';
-
-    /**
-     * line item indicating all the factors that make a single line item.
-     * Sub-line items should have NO children line items.
-     */
-    const type_sub_line_item = 'sub-item';
-
-    /**
-     * line item indicating a sub-total (eg total for an event, or before taxes).
-     * Direct children can be line items and other sub-totals
-     *
-     */
-    const type_sub_total = 'sub-total';
-
-    /**
-     * line item for teh grand total of an order. Its direct children
-     * should be tax subtotals and subtotals, and possibly a regular line item
-     * indicating a transaction-wide discount/surcharge
-     */
-    const type_total = 'total';
-
-    /**
-     * When a line item is cancelled, a sub-line-item of type 'cancellation'
-     * should be created, indicating the quantity that were cancelled
-     * (because a line item could have a quantity of 1, and its cancellation item
-     * could be for 3, indicating that originally 4 were purchased, but 3 have been
-     * cancelled, and only one remains).
-     * When items are refunded, a cancellation line item should be made, which points
-     * to teh payment model object which actually refunded the payment.
-     * Cancellations should NOT have any children line items; the should NOT affect
-     * any calculations, and are only meant as a record that cancellations have occurred.
-     */
-    const type_cancellation = 'cancellation';
-
-    // private instance of the EEM_Line_Item object
-    protected static $_instance = NULL;
-
-
-    /**
-     *        private constructor to prevent direct creation
-     * @Constructor
-     * @access protected
-     * @param string $timezone string representing the timezone we want to set for returned Date Time Strings (and any incoming timezone data that gets saved).  Note this just sends the timezone info to the date time model field objects.  Default is NULL (and will be assumed using the set timezone in the 'timezone_string' wp option)
-     * @return \EEM_Line_Item
-     */
-    protected function __construct($timezone)
-    {
-        $this->singular_item = __('Line Item', 'event_espresso');
-        $this->plural_item = __('Line Items', 'event_espresso');
-
-        $this->_tables = array(
-            'Line_Item' => new EE_Primary_Table('esp_line_item', 'LIN_ID')
-        );
-        $line_items_can_be_for = apply_filters('FHEE__EEM_Line_Item__line_items_can_be_for', array('Ticket', 'Price', 'Event'));
-        $this->_fields = array(
-            'Line_Item' => array(
-                'LIN_ID' => new EE_Primary_Key_Int_Field('LIN_ID', __("ID", "event_espresso")),
-                'LIN_code' => new EE_Slug_Field('LIN_code', __("Code for index into Cart", "event_espresso"), TRUE),
-                'TXN_ID' => new EE_Foreign_Key_Int_Field('TXN_ID', __("Transaction ID", "event_espresso"), TRUE, NULL, 'Transaction'),
-                'LIN_name' => new EE_Full_HTML_Field('LIN_name', __("Line Item Name", "event_espresso"), FALSE, ''),
-                'LIN_desc' => new EE_Full_HTML_Field('LIN_desc', __("Line Item Description", "event_espresso"), TRUE),
-                'LIN_unit_price' => new EE_Money_Field('LIN_unit_price', __("Unit Price", "event_espresso"), FALSE, 0),
-                'LIN_percent' => new EE_Float_Field('LIN_percent', __("Percent", "event_espresso"), FALSE, 0),
-                'LIN_is_taxable' => new EE_Boolean_Field('LIN_is_taxable', __("Taxable", "event_espresso"), FALSE, FALSE),
-                'LIN_order' => new EE_Integer_Field('LIN_order', __("Order of Application towards total of parent", "event_espresso"), FALSE, 1),
-                'LIN_total' => new EE_Money_Field('LIN_total', __("Total (unit price x quantity)", "event_espresso"), FALSE, 0),
-                'LIN_quantity' => new EE_Integer_Field('LIN_quantity', __("Quantity", "event_espresso"), TRUE, 1),
-                'LIN_parent' => new EE_Integer_Field('LIN_parent', __("Parent ID (this item goes towards that Line Item's total)", "event_espresso"), TRUE, NULL),
-                'LIN_type' => new EE_Enum_Text_Field('LIN_type', __("Type", "event_espresso"), FALSE, 'line-item', array(
-                        self::type_line_item => __("Line Item", "event_espresso"),
-                        self::type_sub_line_item => __("Sub-Item", "event_espresso"),
-                        self::type_sub_total => __("Subtotal", "event_espresso"),
-                        self::type_tax_sub_total => __("Tax Subtotal", "event_espresso"),
-                        self::type_tax => __("Tax", "event_espresso"),
-                        self::type_total => __("Total", "event_espresso"),
-                        self::type_cancellation => __('Cancellation', 'event_espresso')
-                    )
-                ),
-                'OBJ_ID' => new EE_Foreign_Key_Int_Field('OBJ_ID', __('ID of Item purchased.', 'event_espresso'), TRUE, NULL, $line_items_can_be_for),
-                'OBJ_type' => new EE_Any_Foreign_Model_Name_Field('OBJ_type', __("Model Name this Line Item is for", "event_espresso"), TRUE, NULL, $line_items_can_be_for),
-                'LIN_timestamp' => new EE_Datetime_Field('LIN_timestamp', __('When the line item was created', 'event_espresso'), false, EE_Datetime_Field::now, $timezone),
-            )
-        );
-        $this->_model_relations = array(
-            'Transaction' => new EE_Belongs_To_Relation(),
-            'Ticket' => new EE_Belongs_To_Any_Relation(),
-            'Price' => new EE_Belongs_To_Any_Relation(),
-            'Event' => new EE_Belongs_To_Any_Relation()
-        );
-        $this->_model_chain_to_wp_user = 'Transaction.Registration.Event';
-        $this->_caps_slug = 'transactions';
-        parent::__construct($timezone);
-    }
-
-
-    /**
-     * Gets all the line items for this transaction of the given type
-     * @param string $line_item_type like one of EEM_Line_Item::type_*
-     * @param EE_Transaction|int $transaction
-     * @return EE_Line_Item[]
-     */
-    public function get_all_of_type_for_transaction($line_item_type, $transaction)
-    {
-        $transaction = EEM_Transaction::instance()->ensure_is_ID($transaction);
-        return $this->get_all(array(array(
-            'LIN_type' => $line_item_type,
-            'TXN_ID' => $transaction
-        )));
-    }
-
-
-    /**
-     * Gets all line items unrelated to tickets that are normal line items
-     * (eg shipping, promotions, and miscellaneous other stuff should probably fit in this category)
-     * @param EE_Transaction|int $transaction
-     * @return EE_Line_Item[]
-     */
-    public function get_all_non_ticket_line_items_for_transaction($transaction)
-    {
-        $transaction = EEM_Transaction::instance()->ensure_is_ID($transaction);
-        return $this->get_all(array(array(
-            'LIN_type' => self::type_line_item,
-            'TXN_ID' => $transaction,
-            'OR' => array(
-                'OBJ_type*notticket' => array('!=', 'Ticket'),
-                'OBJ_type*null' => array('IS_NULL'))
-        )));
-    }
-
-    /**
-     * Deletes line items with no transaction who have passed the transaction cutoff time.
-     * This needs to be very efficient
-     * because if there are spam bots afoot there will be LOTS of line items
-     * @return int count of how many deleted
-     */
-    public function delete_line_items_with_no_transaction()
-    {
-        /** @type WPDB $wpdb */
-        global $wpdb;
-        $time_to_leave_alone = apply_filters(
-            'FHEE__EEM_Line_Item__delete_line_items_with_no_transaction__time_to_leave_alone', WEEK_IN_SECONDS
-        );
-        $query = $wpdb->prepare(
-            'DELETE li
+	/**
+	 * Tax sub-total is just the total of all the taxes, which should be children
+	 * of this line item. There should only ever be one tax sub-total, and it should
+	 * be a direct child of
+	 */
+	const type_tax_sub_total = 'tax-sub-total';
+
+	/**
+	 * Tax line items indicate a tax applied to all the taxable line items.
+	 * Should not have any children line items.
+	 */
+	const type_tax = 'tax';
+
+	/**
+	 * Indicating individual items purchased, or discounts or surcharges.
+	 * The sum of all the regular line items  plus the tax items should equal
+	 * the grand total.
+	 * Possible children fo sub-line-items and cancellations.
+	 */
+	const type_line_item = 'line-item';
+
+	/**
+	 * line item indicating all the factors that make a single line item.
+	 * Sub-line items should have NO children line items.
+	 */
+	const type_sub_line_item = 'sub-item';
+
+	/**
+	 * line item indicating a sub-total (eg total for an event, or before taxes).
+	 * Direct children can be line items and other sub-totals
+	 *
+	 */
+	const type_sub_total = 'sub-total';
+
+	/**
+	 * line item for teh grand total of an order. Its direct children
+	 * should be tax subtotals and subtotals, and possibly a regular line item
+	 * indicating a transaction-wide discount/surcharge
+	 */
+	const type_total = 'total';
+
+	/**
+	 * When a line item is cancelled, a sub-line-item of type 'cancellation'
+	 * should be created, indicating the quantity that were cancelled
+	 * (because a line item could have a quantity of 1, and its cancellation item
+	 * could be for 3, indicating that originally 4 were purchased, but 3 have been
+	 * cancelled, and only one remains).
+	 * When items are refunded, a cancellation line item should be made, which points
+	 * to teh payment model object which actually refunded the payment.
+	 * Cancellations should NOT have any children line items; the should NOT affect
+	 * any calculations, and are only meant as a record that cancellations have occurred.
+	 */
+	const type_cancellation = 'cancellation';
+
+	// private instance of the EEM_Line_Item object
+	protected static $_instance = NULL;
+
+
+	/**
+	 *        private constructor to prevent direct creation
+	 * @Constructor
+	 * @access protected
+	 * @param string $timezone string representing the timezone we want to set for returned Date Time Strings (and any incoming timezone data that gets saved).  Note this just sends the timezone info to the date time model field objects.  Default is NULL (and will be assumed using the set timezone in the 'timezone_string' wp option)
+	 * @return \EEM_Line_Item
+	 */
+	protected function __construct($timezone)
+	{
+		$this->singular_item = __('Line Item', 'event_espresso');
+		$this->plural_item = __('Line Items', 'event_espresso');
+
+		$this->_tables = array(
+			'Line_Item' => new EE_Primary_Table('esp_line_item', 'LIN_ID')
+		);
+		$line_items_can_be_for = apply_filters('FHEE__EEM_Line_Item__line_items_can_be_for', array('Ticket', 'Price', 'Event'));
+		$this->_fields = array(
+			'Line_Item' => array(
+				'LIN_ID' => new EE_Primary_Key_Int_Field('LIN_ID', __("ID", "event_espresso")),
+				'LIN_code' => new EE_Slug_Field('LIN_code', __("Code for index into Cart", "event_espresso"), TRUE),
+				'TXN_ID' => new EE_Foreign_Key_Int_Field('TXN_ID', __("Transaction ID", "event_espresso"), TRUE, NULL, 'Transaction'),
+				'LIN_name' => new EE_Full_HTML_Field('LIN_name', __("Line Item Name", "event_espresso"), FALSE, ''),
+				'LIN_desc' => new EE_Full_HTML_Field('LIN_desc', __("Line Item Description", "event_espresso"), TRUE),
+				'LIN_unit_price' => new EE_Money_Field('LIN_unit_price', __("Unit Price", "event_espresso"), FALSE, 0),
+				'LIN_percent' => new EE_Float_Field('LIN_percent', __("Percent", "event_espresso"), FALSE, 0),
+				'LIN_is_taxable' => new EE_Boolean_Field('LIN_is_taxable', __("Taxable", "event_espresso"), FALSE, FALSE),
+				'LIN_order' => new EE_Integer_Field('LIN_order', __("Order of Application towards total of parent", "event_espresso"), FALSE, 1),
+				'LIN_total' => new EE_Money_Field('LIN_total', __("Total (unit price x quantity)", "event_espresso"), FALSE, 0),
+				'LIN_quantity' => new EE_Integer_Field('LIN_quantity', __("Quantity", "event_espresso"), TRUE, 1),
+				'LIN_parent' => new EE_Integer_Field('LIN_parent', __("Parent ID (this item goes towards that Line Item's total)", "event_espresso"), TRUE, NULL),
+				'LIN_type' => new EE_Enum_Text_Field('LIN_type', __("Type", "event_espresso"), FALSE, 'line-item', array(
+						self::type_line_item => __("Line Item", "event_espresso"),
+						self::type_sub_line_item => __("Sub-Item", "event_espresso"),
+						self::type_sub_total => __("Subtotal", "event_espresso"),
+						self::type_tax_sub_total => __("Tax Subtotal", "event_espresso"),
+						self::type_tax => __("Tax", "event_espresso"),
+						self::type_total => __("Total", "event_espresso"),
+						self::type_cancellation => __('Cancellation', 'event_espresso')
+					)
+				),
+				'OBJ_ID' => new EE_Foreign_Key_Int_Field('OBJ_ID', __('ID of Item purchased.', 'event_espresso'), TRUE, NULL, $line_items_can_be_for),
+				'OBJ_type' => new EE_Any_Foreign_Model_Name_Field('OBJ_type', __("Model Name this Line Item is for", "event_espresso"), TRUE, NULL, $line_items_can_be_for),
+				'LIN_timestamp' => new EE_Datetime_Field('LIN_timestamp', __('When the line item was created', 'event_espresso'), false, EE_Datetime_Field::now, $timezone),
+			)
+		);
+		$this->_model_relations = array(
+			'Transaction' => new EE_Belongs_To_Relation(),
+			'Ticket' => new EE_Belongs_To_Any_Relation(),
+			'Price' => new EE_Belongs_To_Any_Relation(),
+			'Event' => new EE_Belongs_To_Any_Relation()
+		);
+		$this->_model_chain_to_wp_user = 'Transaction.Registration.Event';
+		$this->_caps_slug = 'transactions';
+		parent::__construct($timezone);
+	}
+
+
+	/**
+	 * Gets all the line items for this transaction of the given type
+	 * @param string $line_item_type like one of EEM_Line_Item::type_*
+	 * @param EE_Transaction|int $transaction
+	 * @return EE_Line_Item[]
+	 */
+	public function get_all_of_type_for_transaction($line_item_type, $transaction)
+	{
+		$transaction = EEM_Transaction::instance()->ensure_is_ID($transaction);
+		return $this->get_all(array(array(
+			'LIN_type' => $line_item_type,
+			'TXN_ID' => $transaction
+		)));
+	}
+
+
+	/**
+	 * Gets all line items unrelated to tickets that are normal line items
+	 * (eg shipping, promotions, and miscellaneous other stuff should probably fit in this category)
+	 * @param EE_Transaction|int $transaction
+	 * @return EE_Line_Item[]
+	 */
+	public function get_all_non_ticket_line_items_for_transaction($transaction)
+	{
+		$transaction = EEM_Transaction::instance()->ensure_is_ID($transaction);
+		return $this->get_all(array(array(
+			'LIN_type' => self::type_line_item,
+			'TXN_ID' => $transaction,
+			'OR' => array(
+				'OBJ_type*notticket' => array('!=', 'Ticket'),
+				'OBJ_type*null' => array('IS_NULL'))
+		)));
+	}
+
+	/**
+	 * Deletes line items with no transaction who have passed the transaction cutoff time.
+	 * This needs to be very efficient
+	 * because if there are spam bots afoot there will be LOTS of line items
+	 * @return int count of how many deleted
+	 */
+	public function delete_line_items_with_no_transaction()
+	{
+		/** @type WPDB $wpdb */
+		global $wpdb;
+		$time_to_leave_alone = apply_filters(
+			'FHEE__EEM_Line_Item__delete_line_items_with_no_transaction__time_to_leave_alone', WEEK_IN_SECONDS
+		);
+		$query = $wpdb->prepare(
+			'DELETE li
 				FROM ' . $this->table() . ' li
 				LEFT JOIN ' . EEM_Transaction::instance()->table() . ' t ON li.TXN_ID = t.TXN_ID
 				WHERE t.TXN_ID IS NULL AND li.LIN_timestamp < %s',
-            // use GMT time because that's what TXN_timestamps are in
-            date('Y-m-d H:i:s', time() - $time_to_leave_alone)
-        );
-        return $wpdb->query($query);
-    }
-
-
-    /**
-     * get_line_item_for_transaction_object
-     * Gets a transaction's line item record for a specific object such as a EE_Event or EE_Ticket
-     *
-     * @param int $TXN_ID
-     * @param \EE_Base_Class $object
-     * @return EE_Line_Item[]
-     */
-    public function get_line_item_for_transaction_object($TXN_ID, EE_Base_Class $object)
-    {
-        return $this->get_all(array(array(
-            'TXN_ID' => $TXN_ID,
-            'OBJ_type' => str_replace('EE_', '', get_class($object)),
-            'OBJ_ID' => $object->ID()
-        )));
-    }
-
-
-    /**
-     * get_object_line_items_for_transaction
-     * Gets all of the the object line items for a transaction, based on an object type plus an array of object IDs
-     *
-     * @param int $TXN_ID
-     * @param string $OBJ_type
-     * @param array $OBJ_IDs
-     * @return EE_Line_Item[]
-     */
-    public function get_object_line_items_for_transaction($TXN_ID, $OBJ_type = 'Event', $OBJ_IDs = array())
-    {
-        $query_params = array(
-            'OBJ_type' => $OBJ_type,
-            // if incoming $OBJ_IDs is an array, then make sure it is formatted correctly for the query
-            'OBJ_ID' => is_array($OBJ_IDs) && !isset($OBJ_IDs['IN']) ? array('IN', $OBJ_IDs) : $OBJ_IDs
-        );
-        if ($TXN_ID) {
-            $query_params['TXN_ID'] = $TXN_ID;
-        }
-        return $this->get_all(array($query_params));
-    }
-
-
-    /**
-     * get_all_ticket_line_items_for_transaction
-     *
-     * @param EE_Transaction $transaction
-     * @return EE_Line_Item[]
-     */
-    public function get_all_ticket_line_items_for_transaction(EE_Transaction $transaction)
-    {
-        return $this->get_all(array(
-            array(
-                'TXN_ID' => $transaction->ID(),
-                'OBJ_type' => 'Ticket',
-            )
-        ));
-    }
-
-
-    /**
-     * get_ticket_line_item_for_transaction
-     *
-     * @param int $TXN_ID
-     * @param int $TKT_ID
-     * @return \EE_Line_Item
-     */
-    public function get_ticket_line_item_for_transaction($TXN_ID, $TKT_ID)
-    {
-        return $this->get_one(array(
-            array(
-                'TXN_ID' => EEM_Transaction::instance()->ensure_is_ID($TXN_ID),
-                'OBJ_ID' => $TKT_ID,
-                'OBJ_type' => 'Ticket',
-            )
-        ));
-    }
-
-
-    /**
-     * get_existing_promotion_line_item
-     * searches the cart for existing line items for the specified promotion
-     *
-     * @since   1.0.0
-     *
-     * @param EE_Line_Item $parent_line_item
-     * @param EE_Promotion $promotion
-     * @return EE_Line_Item
-     */
-    public function get_existing_promotion_line_item(EE_Line_Item $parent_line_item, EE_Promotion $promotion)
-    {
-        return $this->get_one(array(
-            array(
-                'TXN_ID' => $parent_line_item->TXN_ID(),
-                'LIN_parent' => $parent_line_item->ID(),
-                'OBJ_type' => 'Promotion',
-                'OBJ_ID' => $promotion->ID()
-            )
-        ));
-    }
-
-
-    /**
-     * get_all_promotion_line_items
-     * searches the cart for any and all existing promotion line items
-     *
-     * @since   1.0.0
-     *
-     * @param EE_Line_Item $parent_line_item
-     * @return EE_Line_Item[]
-     */
-    public function get_all_promotion_line_items(EE_Line_Item $parent_line_item)
-    {
-        return $this->get_all(array(
-            array(
-                'TXN_ID' => $parent_line_item->TXN_ID(),
-                'LIN_parent' => $parent_line_item->ID(),
-                'OBJ_type' => 'Promotion'
-            )
-        ));
-    }
-
-    /**
-     * Gets the registration's corresponding line item.
-     * Note: basically does NOT support having multiple line items for a single ticket,
-     * which would happen if some of the registrations had a price modifier while others didn't.
-     * In order to support that, we'd probably need a LIN_ID on registrations or something.
-     * @param EE_Registration $registration
-     * @return EE_Line_ITem
-     */
-    public function get_line_item_for_registration(EE_Registration $registration)
-    {
-        return $this->get_one($this->line_item_for_registration_query_params($registration));
-    }
-
-    /**
-     * Gets the query params used to retrieve a specific line item for the given registration
-     * @param EE_Registration $registration
-     * @param array $original_query_params any extra query params you'd like to be merged with
-     * @return array like EEM_Base::get_all()'s $query_params
-     */
-    public function line_item_for_registration_query_params(EE_Registration $registration, $original_query_params = array())
-    {
-        return array_replace_recursive($original_query_params, array(
-            array(
-                'OBJ_ID' => $registration->ticket_ID(),
-                'OBJ_type' => 'Ticket',
-                'TXN_ID' => $registration->transaction_ID()
-            )
-        ));
-    }
-
-
-    /**
-     * @return EE_Base_Class[]|EE_Line_Item[]
-     * @throws EE_Error
-     */
-    public function get_total_line_items_with_no_transaction()
-    {
-        return $this->get_total_line_items_for_carts();
-    }
-
-
-    /**
-     * @return EE_Base_Class[]|EE_Line_Item[]
-     * @throws EE_Error
-     */
-    public function get_total_line_items_for_active_carts()
-    {
-        return $this->get_total_line_items_for_carts(false);
-    }
-
-
-    /**
-     * @return EE_Base_Class[]|EE_Line_Item[]
-     * @throws EE_Error
-     */
-    public function get_total_line_items_for_expired_carts()
-    {
-        return $this->get_total_line_items_for_carts(true);
-    }
-
-
-    /**
-     * Returns an array of grand total line items where the TXN_ID is 0.
-     * If $expired is set to true, then only line items for expired sessions will be returned.
-     * If $expired is set to false, then only line items for active sessions will be returned.
-     *
-     * @param bool|null $expired
-     * @return EE_Base_Class[]|EE_Line_Item[]
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     */
-    private function get_total_line_items_for_carts($expired = null)
-    {
-        $where_params = array(
-            'TXN_ID' => 0,
-            'LIN_type' => 'total',
-        );
-        if ($expired !== null) {
-            /** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
-            $session_lifespan = LoaderFactory::getLoader()->getShared(
-                'EventEspresso\core\domain\values\session\SessionLifespan'
-            );
-            $where_params['LIN_timestamp'] = array(
-                $expired ? '<=' : '>',
-                $session_lifespan->expiration(),
-            );
-        }
-        return $this->get_all(array($where_params));
-    }
+			// use GMT time because that's what TXN_timestamps are in
+			date('Y-m-d H:i:s', time() - $time_to_leave_alone)
+		);
+		return $wpdb->query($query);
+	}
+
+
+	/**
+	 * get_line_item_for_transaction_object
+	 * Gets a transaction's line item record for a specific object such as a EE_Event or EE_Ticket
+	 *
+	 * @param int $TXN_ID
+	 * @param \EE_Base_Class $object
+	 * @return EE_Line_Item[]
+	 */
+	public function get_line_item_for_transaction_object($TXN_ID, EE_Base_Class $object)
+	{
+		return $this->get_all(array(array(
+			'TXN_ID' => $TXN_ID,
+			'OBJ_type' => str_replace('EE_', '', get_class($object)),
+			'OBJ_ID' => $object->ID()
+		)));
+	}
+
+
+	/**
+	 * get_object_line_items_for_transaction
+	 * Gets all of the the object line items for a transaction, based on an object type plus an array of object IDs
+	 *
+	 * @param int $TXN_ID
+	 * @param string $OBJ_type
+	 * @param array $OBJ_IDs
+	 * @return EE_Line_Item[]
+	 */
+	public function get_object_line_items_for_transaction($TXN_ID, $OBJ_type = 'Event', $OBJ_IDs = array())
+	{
+		$query_params = array(
+			'OBJ_type' => $OBJ_type,
+			// if incoming $OBJ_IDs is an array, then make sure it is formatted correctly for the query
+			'OBJ_ID' => is_array($OBJ_IDs) && !isset($OBJ_IDs['IN']) ? array('IN', $OBJ_IDs) : $OBJ_IDs
+		);
+		if ($TXN_ID) {
+			$query_params['TXN_ID'] = $TXN_ID;
+		}
+		return $this->get_all(array($query_params));
+	}
+
+
+	/**
+	 * get_all_ticket_line_items_for_transaction
+	 *
+	 * @param EE_Transaction $transaction
+	 * @return EE_Line_Item[]
+	 */
+	public function get_all_ticket_line_items_for_transaction(EE_Transaction $transaction)
+	{
+		return $this->get_all(array(
+			array(
+				'TXN_ID' => $transaction->ID(),
+				'OBJ_type' => 'Ticket',
+			)
+		));
+	}
+
+
+	/**
+	 * get_ticket_line_item_for_transaction
+	 *
+	 * @param int $TXN_ID
+	 * @param int $TKT_ID
+	 * @return \EE_Line_Item
+	 */
+	public function get_ticket_line_item_for_transaction($TXN_ID, $TKT_ID)
+	{
+		return $this->get_one(array(
+			array(
+				'TXN_ID' => EEM_Transaction::instance()->ensure_is_ID($TXN_ID),
+				'OBJ_ID' => $TKT_ID,
+				'OBJ_type' => 'Ticket',
+			)
+		));
+	}
+
+
+	/**
+	 * get_existing_promotion_line_item
+	 * searches the cart for existing line items for the specified promotion
+	 *
+	 * @since   1.0.0
+	 *
+	 * @param EE_Line_Item $parent_line_item
+	 * @param EE_Promotion $promotion
+	 * @return EE_Line_Item
+	 */
+	public function get_existing_promotion_line_item(EE_Line_Item $parent_line_item, EE_Promotion $promotion)
+	{
+		return $this->get_one(array(
+			array(
+				'TXN_ID' => $parent_line_item->TXN_ID(),
+				'LIN_parent' => $parent_line_item->ID(),
+				'OBJ_type' => 'Promotion',
+				'OBJ_ID' => $promotion->ID()
+			)
+		));
+	}
+
+
+	/**
+	 * get_all_promotion_line_items
+	 * searches the cart for any and all existing promotion line items
+	 *
+	 * @since   1.0.0
+	 *
+	 * @param EE_Line_Item $parent_line_item
+	 * @return EE_Line_Item[]
+	 */
+	public function get_all_promotion_line_items(EE_Line_Item $parent_line_item)
+	{
+		return $this->get_all(array(
+			array(
+				'TXN_ID' => $parent_line_item->TXN_ID(),
+				'LIN_parent' => $parent_line_item->ID(),
+				'OBJ_type' => 'Promotion'
+			)
+		));
+	}
+
+	/**
+	 * Gets the registration's corresponding line item.
+	 * Note: basically does NOT support having multiple line items for a single ticket,
+	 * which would happen if some of the registrations had a price modifier while others didn't.
+	 * In order to support that, we'd probably need a LIN_ID on registrations or something.
+	 * @param EE_Registration $registration
+	 * @return EE_Line_ITem
+	 */
+	public function get_line_item_for_registration(EE_Registration $registration)
+	{
+		return $this->get_one($this->line_item_for_registration_query_params($registration));
+	}
+
+	/**
+	 * Gets the query params used to retrieve a specific line item for the given registration
+	 * @param EE_Registration $registration
+	 * @param array $original_query_params any extra query params you'd like to be merged with
+	 * @return array like EEM_Base::get_all()'s $query_params
+	 */
+	public function line_item_for_registration_query_params(EE_Registration $registration, $original_query_params = array())
+	{
+		return array_replace_recursive($original_query_params, array(
+			array(
+				'OBJ_ID' => $registration->ticket_ID(),
+				'OBJ_type' => 'Ticket',
+				'TXN_ID' => $registration->transaction_ID()
+			)
+		));
+	}
+
+
+	/**
+	 * @return EE_Base_Class[]|EE_Line_Item[]
+	 * @throws EE_Error
+	 */
+	public function get_total_line_items_with_no_transaction()
+	{
+		return $this->get_total_line_items_for_carts();
+	}
+
+
+	/**
+	 * @return EE_Base_Class[]|EE_Line_Item[]
+	 * @throws EE_Error
+	 */
+	public function get_total_line_items_for_active_carts()
+	{
+		return $this->get_total_line_items_for_carts(false);
+	}
+
+
+	/**
+	 * @return EE_Base_Class[]|EE_Line_Item[]
+	 * @throws EE_Error
+	 */
+	public function get_total_line_items_for_expired_carts()
+	{
+		return $this->get_total_line_items_for_carts(true);
+	}
+
+
+	/**
+	 * Returns an array of grand total line items where the TXN_ID is 0.
+	 * If $expired is set to true, then only line items for expired sessions will be returned.
+	 * If $expired is set to false, then only line items for active sessions will be returned.
+	 *
+	 * @param bool|null $expired
+	 * @return EE_Base_Class[]|EE_Line_Item[]
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 */
+	private function get_total_line_items_for_carts($expired = null)
+	{
+		$where_params = array(
+			'TXN_ID' => 0,
+			'LIN_type' => 'total',
+		);
+		if ($expired !== null) {
+			/** @var EventEspresso\core\domain\values\session\SessionLifespan $session_lifespan */
+			$session_lifespan = LoaderFactory::getLoader()->getShared(
+				'EventEspresso\core\domain\values\session\SessionLifespan'
+			);
+			$where_params['LIN_timestamp'] = array(
+				$expired ? '<=' : '>',
+				$session_lifespan->expiration(),
+			);
+		}
+		return $this->get_all(array($where_params));
+	}
 
 
 }

Spacing +4 added lines, -4 removed lines

@@ -4,7 +4,7 @@ 
 use EventEspresso\core\exceptions\InvalidInterfaceException;
 use EventEspresso\core\services\loaders\LoaderFactory;
 
-if (!defined('EVENT_ESPRESSO_VERSION')) exit('No direct script access allowed');
+if ( ! defined('EVENT_ESPRESSO_VERSION')) exit('No direct script access allowed');
 
 /**
  * Event Espresso
@@ -211,8 +211,8 @@ 
         );
         $query = $wpdb->prepare(
             'DELETE li
-				FROM ' . $this->table() . ' li
-				LEFT JOIN ' . EEM_Transaction::instance()->table() . ' t ON li.TXN_ID = t.TXN_ID
+				FROM ' . $this->table().' li
+				LEFT JOIN ' . EEM_Transaction::instance()->table().' t ON li.TXN_ID = t.TXN_ID
 				WHERE t.TXN_ID IS NULL AND li.LIN_timestamp < %s',
             // use GMT time because that's what TXN_timestamps are in
             date('Y-m-d H:i:s', time() - $time_to_leave_alone)
@@ -253,7 +253,7 @@ 
         $query_params = array(
             'OBJ_type' => $OBJ_type,
             // if incoming $OBJ_IDs is an array, then make sure it is formatted correctly for the query
-            'OBJ_ID' => is_array($OBJ_IDs) && !isset($OBJ_IDs['IN']) ? array('IN', $OBJ_IDs) : $OBJ_IDs
+            'OBJ_ID' => is_array($OBJ_IDs) && ! isset($OBJ_IDs['IN']) ? array('IN', $OBJ_IDs) : $OBJ_IDs
         );
         if ($TXN_ID) {
             $query_params['TXN_ID'] = $TXN_ID;

Braces +3 added lines, -1 removed lines

@@ -4,7 +4,9 @@
 use EventEspresso\core\exceptions\InvalidInterfaceException;
 use EventEspresso\core\services\loaders\LoaderFactory;
 
-if (!defined('EVENT_ESPRESSO_VERSION')) exit('No direct script access allowed');
+if (!defined('EVENT_ESPRESSO_VERSION')) {
+	exit('No direct script access allowed');
+}
 
 /**
  * Event Espresso

core/EE_Dependency_Map.core.php

Indentation +836 added lines, -836 removed lines

@@ -8,7 +8,7 @@ 
 use EventEspresso\core\services\request\ResponseInterface;
 
 if (! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -25,841 +25,841 @@ 
 class EE_Dependency_Map
 {
 
-    /**
-     * This means that the requested class dependency is not present in the dependency map
-     */
-    const not_registered = 0;
-
-    /**
-     * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
-     */
-    const load_new_object = 1;
-
-    /**
-     * This instructs class loaders to return a previously instantiated and cached object for the requested class.
-     * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
-     */
-    const load_from_cache = 2;
-
-    /**
-     * When registering a dependency,
-     * this indicates to keep any existing dependencies that already exist,
-     * and simply discard any new dependencies declared in the incoming data
-     */
-    const KEEP_EXISTING_DEPENDENCIES = 0;
-
-    /**
-     * When registering a dependency,
-     * this indicates to overwrite any existing dependencies that already exist using the incoming data
-     */
-    const OVERWRITE_DEPENDENCIES = 1;
-
-
-
-    /**
-     * @type EE_Dependency_Map $_instance
-     */
-    protected static $_instance;
-
-    /**
-     * @type RequestInterface $request
-     */
-    protected $request;
-
-    /**
-     * @type LegacyRequestInterface $legacy_request
-     */
-    protected $legacy_request;
-
-    /**
-     * @type ResponseInterface $response
-     */
-    protected $response;
-
-    /**
-     * @type LoaderInterface $loader
-     */
-    protected $loader;
-
-    /**
-     * @type array $_dependency_map
-     */
-    protected $_dependency_map = array();
-
-    /**
-     * @type array $_class_loaders
-     */
-    protected $_class_loaders = array();
-
-    /**
-     * @type array $_aliases
-     */
-    protected $_aliases = array();
-
-
-
-    /**
-     * EE_Dependency_Map constructor.
-     */
-    protected function __construct()
-    {
-        // add_action('EE_Load_Espresso_Core__handle_request__initialize_core_loading', array($this, 'initialize'));
-        do_action('EE_Dependency_Map____construct');
-    }
-
-
-
-    /**
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    public function initialize()
-    {
-        $this->_register_core_dependencies();
-        $this->_register_core_class_loaders();
-        $this->_register_core_aliases();
-    }
-
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @return EE_Dependency_Map
-     */
-    public static function instance() {
-        // check if class object is instantiated, and instantiated properly
-        if (! self::$_instance instanceof EE_Dependency_Map) {
-            self::$_instance = new EE_Dependency_Map(/*$request, $response, $legacy_request*/);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * @param RequestInterface $request
-     */
-    public function setRequest(RequestInterface $request)
-    {
-        $this->request = $request;
-    }
-
-
-    /**
-     * @param LegacyRequestInterface $legacy_request
-     */
-    public function setLegacyRequest(LegacyRequestInterface $legacy_request)
-    {
-        $this->legacy_request = $legacy_request;
-    }
-
-
-    /**
-     * @param ResponseInterface $response
-     */
-    public function setResponse(ResponseInterface $response)
-    {
-        $this->response = $response;
-    }
-
-
-
-    /**
-     * @param LoaderInterface $loader
-     */
-    public function setLoader(LoaderInterface $loader)
-    {
-        $this->loader = $loader;
-    }
-
-
-
-    /**
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public static function register_dependencies(
-        $class,
-        array $dependencies,
-        $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ) {
-        return self::$_instance->registerDependencies($class, $dependencies, $overwrite);
-    }
-
-
-
-    /**
-     * Assigns an array of class names and corresponding load sources (new or cached)
-     * to the class specified by the first parameter.
-     * IMPORTANT !!!
-     * The order of elements in the incoming $dependencies array MUST match
-     * the order of the constructor parameters for the class in question.
-     * This is especially important when overriding any existing dependencies that are registered.
-     * the third parameter controls whether any duplicate dependencies are overwritten or not.
-     *
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public function registerDependencies(
-        $class,
-        array $dependencies,
-        $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ) {
-        $class = trim($class, '\\');
-        $registered = false;
-        if (empty(self::$_instance->_dependency_map[ $class ])) {
-            self::$_instance->_dependency_map[ $class ] = array();
-        }
-        // we need to make sure that any aliases used when registering a dependency
-        // get resolved to the correct class name
-        foreach ($dependencies as $dependency => $load_source) {
-            $alias = self::$_instance->get_alias($dependency);
-            if (
-                $overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
-                || ! isset(self::$_instance->_dependency_map[ $class ][ $alias ])
-            ) {
-                unset($dependencies[$dependency]);
-                $dependencies[$alias] = $load_source;
-                $registered = true;
-            }
-        }
-        // now add our two lists of dependencies together.
-        // using Union (+=) favours the arrays in precedence from left to right,
-        // so $dependencies is NOT overwritten because it is listed first
-        // ie: with A = B + C, entries in B take precedence over duplicate entries in C
-        // Union is way faster than array_merge() but should be used with caution...
-        // especially with numerically indexed arrays
-        $dependencies += self::$_instance->_dependency_map[ $class ];
-        // now we need to ensure that the resulting dependencies
-        // array only has the entries that are required for the class
-        // so first count how many dependencies were originally registered for the class
-        $dependency_count = count(self::$_instance->_dependency_map[ $class ]);
-        // if that count is non-zero (meaning dependencies were already registered)
-        self::$_instance->_dependency_map[ $class ] = $dependency_count
-            // then truncate the  final array to match that count
-            ? array_slice($dependencies, 0, $dependency_count)
-            // otherwise just take the incoming array because nothing previously existed
-            : $dependencies;
-        return $registered;
-    }
-
-
-
-    /**
-     * @param string $class_name
-     * @param string $loader
-     * @return bool
-     * @throws DomainException
-     */
-    public static function register_class_loader($class_name, $loader = 'load_core')
-    {
-        if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
-            throw new DomainException(
-                esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
-            );
-        }
-        // check that loader is callable or method starts with "load_" and exists in EE_Registry
-        if (
-            ! is_callable($loader)
-            && (
-                strpos($loader, 'load_') !== 0
-                || ! method_exists('EE_Registry', $loader)
-            )
-        ) {
-            throw new DomainException(
-                sprintf(
-                    esc_html__(
-                        '"%1$s" is not a valid loader method on EE_Registry.',
-                        'event_espresso'
-                    ),
-                    $loader
-                )
-            );
-        }
-        $class_name = self::$_instance->get_alias($class_name);
-        if (! isset(self::$_instance->_class_loaders[$class_name])) {
-            self::$_instance->_class_loaders[$class_name] = $loader;
-            return true;
-        }
-        return false;
-    }
-
-
-
-    /**
-     * @return array
-     */
-    public function dependency_map()
-    {
-        return $this->_dependency_map;
-    }
-
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name
-     *
-     * @param string $class_name
-     * @return boolean
-     */
-    public function has($class_name = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        return isset($this->_dependency_map[$class_name]) ? true : false;
-    }
-
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name AND dependency
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return bool
-     */
-    public function has_dependency_for_class($class_name = '', $dependency = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->get_alias($dependency);
-        return isset($this->_dependency_map[$class_name][$dependency])
-            ? true
-            : false;
-    }
-
-
-
-    /**
-     * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return int
-     */
-    public function loading_strategy_for_class_dependency($class_name = '', $dependency = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->get_alias($dependency);
-        return $this->has_dependency_for_class($class_name, $dependency)
-            ? $this->_dependency_map[$class_name][$dependency]
-            : EE_Dependency_Map::not_registered;
-    }
-
-
-
-    /**
-     * @param string $class_name
-     * @return string | Closure
-     */
-    public function class_loader($class_name)
-    {
-        // all legacy models use load_model()
-        if(strpos($class_name, 'EEM_') === 0){
-            return 'load_model';
-        }
-        $class_name = $this->get_alias($class_name);
-        return isset($this->_class_loaders[$class_name]) ? $this->_class_loaders[$class_name] : '';
-    }
-
-
-
-    /**
-     * @return array
-     */
-    public function class_loaders()
-    {
-        return $this->_class_loaders;
-    }
-
-
-
-    /**
-     * adds an alias for a classname
-     *
-     * @param string $class_name the class name that should be used (concrete class to replace interface)
-     * @param string $alias      the class name that would be type hinted for (abstract parent or interface)
-     * @param string $for_class  the class that has the dependency (is type hinting for the interface)
-     */
-    public function add_alias($class_name, $alias, $for_class = '')
-    {
-        if ($for_class !== '') {
-            if (! isset($this->_aliases[$for_class])) {
-                $this->_aliases[$for_class] = array();
-            }
-            $this->_aliases[$for_class][$class_name] = $alias;
-        }
-        $this->_aliases[$class_name] = $alias;
-    }
-
-
-
-    /**
-     * returns TRUE if the provided class name has an alias
-     *
-     * @param string $class_name
-     * @param string $for_class
-     * @return bool
-     */
-    public function has_alias($class_name = '', $for_class = '')
-    {
-        return isset($this->_aliases[$for_class][$class_name])
-               || (
-                   isset($this->_aliases[$class_name])
-                   && ! is_array($this->_aliases[$class_name])
-               );
-    }
-
-
-
-    /**
-     * returns alias for class name if one exists, otherwise returns the original classname
-     * functions recursively, so that multiple aliases can be used to drill down to a classname
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @param string $class_name
-     * @param string $for_class
-     * @return string
-     */
-    public function get_alias($class_name = '', $for_class = '')
-    {
-        if (! $this->has_alias($class_name, $for_class)) {
-            return $class_name;
-        }
-        if ($for_class !== '' && isset($this->_aliases[ $for_class ][ $class_name ])) {
-            return $this->get_alias($this->_aliases[$for_class][$class_name], $for_class);
-        }
-        return $this->get_alias($this->_aliases[$class_name]);
-    }
-
-
-
-    /**
-     * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
-     * if one exists, or whether a new object should be generated every time the requested class is loaded.
-     * This is done by using the following class constants:
-     *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
-     *        EE_Dependency_Map::load_new_object - generates a new object every time
-     */
-    protected function _register_core_dependencies()
-    {
-        $this->_dependency_map = array(
-            'EE_Request_Handler'                                                                                          => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_System'                                                                                                   => array(
-                'EE_Registry'                                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EE_Maintenance_Mode'                         => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Session'                                                                                                  => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
-                'EE_Encryption'                                            => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Cart'                                                                                                     => array(
-                'EE_Session' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Front_Controller'                                                                                         => array(
-                'EE_Registry'              => EE_Dependency_Map::load_from_cache,
-                'EE_Request_Handler'       => EE_Dependency_Map::load_from_cache,
-                'EE_Module_Request_Router' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messenger_Collection_Loader'                                                                              => array(
-                'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Message_Type_Collection_Loader'                                                                           => array(
-                'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Message_Resource_Manager'                                                                                 => array(
-                'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
-                'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
-                'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Message_Factory'                                                                                          => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_messages'                                                                                                 => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Generator'                                                                                       => array(
-                'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
-                'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
-                'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
-                'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Processor'                                                                                       => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Queue'                                                                                           => array(
-                'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Messages_Template_Defaults'                                                                               => array(
-                'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
-                'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Message_To_Generate_From_Request'                                                                         => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-                'EE_Request_Handler'          => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandBus'                                                             => array(
-                'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\services\commands\CommandHandler'                                                              => array(
-                'EE_Registry'         => EE_Dependency_Map::load_from_cache,
-                'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandHandlerManager'                                                  => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CompositeCommandHandler'                                                => array(
-                'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandFactory'                                                         => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\middleware\CapChecker'                                                  => array(
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                         => array(
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                     => array(
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CreateRegistrationCommandHandler'                          => array(
-                'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => array(
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => array(
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => array(
-                'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => array(
-                'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => array(
-                'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => array(
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                   => array(
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler'                                  => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\database\TableManager'                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Data_Migration_Class_Base'                                                                                => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_1_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_2_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_3_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_4_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_5_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_6_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_7_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_8_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_9_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\assets\Registry'                                                                 => array(
-                'EE_Template_Config' => EE_Dependency_Map::load_from_cache,
-                'EE_Currency_Config' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                             => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                              => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                        => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                              => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                        => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                               => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\cache\BasicCacheManager'                        => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\cache\PostRelatedCacheManager'                  => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\validation\email\EmailValidationService' => array(
-                'EE_Registration_Config'                                  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'              => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\values\EmailAddress'                              => array(
-                null,
-                'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\orm\ModelFieldFactory' => array(
-                'EventEspresso\core\services\loaders\Loader'              => EE_Dependency_Map::load_from_cache,
-            ),
-            'LEGACY_MODELS'                                                   => array(
-                null,
-                'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Module_Request_Router' => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Registration_Processor' => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\notifications\PersistentAdminNoticeManager' => array(
-                null,
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Admin_Transactions_List_Table' => array(
-                null,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-            ),
-        );
-    }
-
-
-
-    /**
-     * Registers how core classes are loaded.
-     * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
-     *        'EE_Request_Handler' => 'load_core'
-     *        'EE_Messages_Queue'  => 'load_lib'
-     *        'EEH_Debug_Tools'    => 'load_helper'
-     * or, if greater control is required, by providing a custom closure. For example:
-     *        'Some_Class' => function () {
-     *            return new Some_Class();
-     *        },
-     * This is required for instantiating dependencies
-     * where an interface has been type hinted in a class constructor. For example:
-     *        'Required_Interface' => function () {
-     *            return new A_Class_That_Implements_Required_Interface();
-     *        },
-     *
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws InvalidArgumentException
-     */
-    protected function _register_core_class_loaders()
-    {
-        //for PHP5.3 compat, we need to register any properties called here in a variable because `$this` cannot
-        //be used in a closure.
-        $request = &$this->request;
-        $response = &$this->response;
-        $legacy_request = &$this->legacy_request;
-        // $loader = &$this->loader;
-        $this->_class_loaders = array(
-            //load_core
-            'EE_Capabilities'          => 'load_core',
-            'EE_Encryption'            => 'load_core',
-            'EE_Front_Controller'      => 'load_core',
-            'EE_Module_Request_Router' => 'load_core',
-            'EE_Registry'              => 'load_core',
-            'EE_Request'               => function () use (&$legacy_request) {
-                return $legacy_request;
-            },
-            'EventEspresso\core\services\request\Request' => function () use (&$request) {
-                return $request;
-            },
-            'EventEspresso\core\services\request\Response' => function () use (&$response) {
-                return $response;
-            },
-            'EE_Request_Handler'       => 'load_core',
-            'EE_Session'               => 'load_core',
-            'EE_Cron_Tasks'            => 'load_core',
-            'EE_System'                => 'load_core',
-            'EE_Maintenance_Mode'      => 'load_core',
-            'EE_Register_CPTs'         => 'load_core',
-            'EE_Admin'                 => 'load_core',
-            //load_lib
-            'EE_Message_Resource_Manager'          => 'load_lib',
-            'EE_Message_Type_Collection'           => 'load_lib',
-            'EE_Message_Type_Collection_Loader'    => 'load_lib',
-            'EE_Messenger_Collection'              => 'load_lib',
-            'EE_Messenger_Collection_Loader'       => 'load_lib',
-            'EE_Messages_Processor'                => 'load_lib',
-            'EE_Message_Repository'                => 'load_lib',
-            'EE_Messages_Queue'                    => 'load_lib',
-            'EE_Messages_Data_Handler_Collection'  => 'load_lib',
-            'EE_Message_Template_Group_Collection' => 'load_lib',
-            'EE_Payment_Method_Manager'            => 'load_lib',
-            'EE_Messages_Generator'                => function () {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Generator',
-                    array(),
-                    false,
-                    false
-                );
-            },
-            'EE_Messages_Template_Defaults'        => function ($arguments = array()) {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Template_Defaults',
-                    $arguments,
-                    false,
-                    false
-                );
-            },
-            //load_model
-            // 'EEM_Attendee'                         => 'load_model',
-            // 'EEM_Message_Template_Group'           => 'load_model',
-            // 'EEM_Message_Template'                 => 'load_model',
-            //load_helper
-            'EEH_Parse_Shortcodes'                 => function () {
-                if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
-                    return new EEH_Parse_Shortcodes();
-                }
-                return null;
-            },
-            'EE_Template_Config'                   => function () {
-                return EE_Config::instance()->template_settings;
-            },
-            'EE_Currency_Config'                   => function () {
-                return EE_Config::instance()->currency;
-            },
-            'EE_Registration_Config'                   => function () {
-                return EE_Config::instance()->registration;
-            },
-            'EventEspresso\core\services\loaders\Loader' => function () {
-                return LoaderFactory::getLoader();
-            },
-        );
-    }
-
-
-
-    /**
-     * can be used for supplying alternate names for classes,
-     * or for connecting interface names to instantiable classes
-     */
-    protected function _register_core_aliases()
-    {
-        $this->_aliases = array(
-            'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
-            'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
-            'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
-            'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
-            'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
-            'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
-            'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
-            'CreateRegCodeCommandHandler'                                                  => 'EventEspresso\core\services\commands\registration\CreateRegCodeCommand',
-            'CreateRegUrlLinkCommandHandler'                                               => 'EventEspresso\core\services\commands\registration\CreateRegUrlLinkCommand',
-            'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
-            'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommand',
-            'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommand',
-            'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
-            'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
-            'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommand',
-            'CreateTransactionCommandHandler'                                     => 'EventEspresso\core\services\commands\transaction\CreateTransactionCommandHandler',
-            'CreateAttendeeCommandHandler'                                        => 'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler',
-            'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
-            'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
-            'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
-            'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
-            'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
-            'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
-            'CommandFactoryInterface'                                                     => 'EventEspresso\core\services\commands\CommandFactoryInterface',
-            'EventEspresso\core\services\commands\CommandFactoryInterface'                => 'EventEspresso\core\services\commands\CommandFactory',
-            'EventEspresso\core\domain\services\session\SessionIdentifierInterface'       => 'EE_Session',
-            'EmailValidatorInterface'                                                     => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
-            'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface' => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
-            'NoticeConverterInterface'                                            => 'EventEspresso\core\services\notices\NoticeConverterInterface',
-            'EventEspresso\core\services\notices\NoticeConverterInterface'        => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
-            'NoticesContainerInterface'                                           => 'EventEspresso\core\services\notices\NoticesContainerInterface',
-            'EventEspresso\core\services\notices\NoticesContainerInterface'       => 'EventEspresso\core\services\notices\NoticesContainer',
-            'EventEspresso\core\services\request\RequestInterface'                => 'EventEspresso\core\services\request\Request',
-            'EventEspresso\core\services\request\ResponseInterface'               => 'EventEspresso\core\services\request\Response',
-            'EventEspresso\core\domain\DomainInterface'                           => 'EventEspresso\core\domain\Domain',
-        );
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
-            $this->_aliases['EventEspresso\core\services\notices\NoticeConverterInterface'] = 'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices';
-        }
-    }
-
-
-
-    /**
-     * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
-     * request Primarily used by unit tests.
-     *
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    public function reset()
-    {
-        $this->_register_core_class_loaders();
-        $this->_register_core_dependencies();
-    }
+	/**
+	 * This means that the requested class dependency is not present in the dependency map
+	 */
+	const not_registered = 0;
+
+	/**
+	 * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
+	 */
+	const load_new_object = 1;
+
+	/**
+	 * This instructs class loaders to return a previously instantiated and cached object for the requested class.
+	 * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
+	 */
+	const load_from_cache = 2;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to keep any existing dependencies that already exist,
+	 * and simply discard any new dependencies declared in the incoming data
+	 */
+	const KEEP_EXISTING_DEPENDENCIES = 0;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to overwrite any existing dependencies that already exist using the incoming data
+	 */
+	const OVERWRITE_DEPENDENCIES = 1;
+
+
+
+	/**
+	 * @type EE_Dependency_Map $_instance
+	 */
+	protected static $_instance;
+
+	/**
+	 * @type RequestInterface $request
+	 */
+	protected $request;
+
+	/**
+	 * @type LegacyRequestInterface $legacy_request
+	 */
+	protected $legacy_request;
+
+	/**
+	 * @type ResponseInterface $response
+	 */
+	protected $response;
+
+	/**
+	 * @type LoaderInterface $loader
+	 */
+	protected $loader;
+
+	/**
+	 * @type array $_dependency_map
+	 */
+	protected $_dependency_map = array();
+
+	/**
+	 * @type array $_class_loaders
+	 */
+	protected $_class_loaders = array();
+
+	/**
+	 * @type array $_aliases
+	 */
+	protected $_aliases = array();
+
+
+
+	/**
+	 * EE_Dependency_Map constructor.
+	 */
+	protected function __construct()
+	{
+		// add_action('EE_Load_Espresso_Core__handle_request__initialize_core_loading', array($this, 'initialize'));
+		do_action('EE_Dependency_Map____construct');
+	}
+
+
+
+	/**
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	public function initialize()
+	{
+		$this->_register_core_dependencies();
+		$this->_register_core_class_loaders();
+		$this->_register_core_aliases();
+	}
+
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @return EE_Dependency_Map
+	 */
+	public static function instance() {
+		// check if class object is instantiated, and instantiated properly
+		if (! self::$_instance instanceof EE_Dependency_Map) {
+			self::$_instance = new EE_Dependency_Map(/*$request, $response, $legacy_request*/);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * @param RequestInterface $request
+	 */
+	public function setRequest(RequestInterface $request)
+	{
+		$this->request = $request;
+	}
+
+
+	/**
+	 * @param LegacyRequestInterface $legacy_request
+	 */
+	public function setLegacyRequest(LegacyRequestInterface $legacy_request)
+	{
+		$this->legacy_request = $legacy_request;
+	}
+
+
+	/**
+	 * @param ResponseInterface $response
+	 */
+	public function setResponse(ResponseInterface $response)
+	{
+		$this->response = $response;
+	}
+
+
+
+	/**
+	 * @param LoaderInterface $loader
+	 */
+	public function setLoader(LoaderInterface $loader)
+	{
+		$this->loader = $loader;
+	}
+
+
+
+	/**
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public static function register_dependencies(
+		$class,
+		array $dependencies,
+		$overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	) {
+		return self::$_instance->registerDependencies($class, $dependencies, $overwrite);
+	}
+
+
+
+	/**
+	 * Assigns an array of class names and corresponding load sources (new or cached)
+	 * to the class specified by the first parameter.
+	 * IMPORTANT !!!
+	 * The order of elements in the incoming $dependencies array MUST match
+	 * the order of the constructor parameters for the class in question.
+	 * This is especially important when overriding any existing dependencies that are registered.
+	 * the third parameter controls whether any duplicate dependencies are overwritten or not.
+	 *
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public function registerDependencies(
+		$class,
+		array $dependencies,
+		$overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	) {
+		$class = trim($class, '\\');
+		$registered = false;
+		if (empty(self::$_instance->_dependency_map[ $class ])) {
+			self::$_instance->_dependency_map[ $class ] = array();
+		}
+		// we need to make sure that any aliases used when registering a dependency
+		// get resolved to the correct class name
+		foreach ($dependencies as $dependency => $load_source) {
+			$alias = self::$_instance->get_alias($dependency);
+			if (
+				$overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
+				|| ! isset(self::$_instance->_dependency_map[ $class ][ $alias ])
+			) {
+				unset($dependencies[$dependency]);
+				$dependencies[$alias] = $load_source;
+				$registered = true;
+			}
+		}
+		// now add our two lists of dependencies together.
+		// using Union (+=) favours the arrays in precedence from left to right,
+		// so $dependencies is NOT overwritten because it is listed first
+		// ie: with A = B + C, entries in B take precedence over duplicate entries in C
+		// Union is way faster than array_merge() but should be used with caution...
+		// especially with numerically indexed arrays
+		$dependencies += self::$_instance->_dependency_map[ $class ];
+		// now we need to ensure that the resulting dependencies
+		// array only has the entries that are required for the class
+		// so first count how many dependencies were originally registered for the class
+		$dependency_count = count(self::$_instance->_dependency_map[ $class ]);
+		// if that count is non-zero (meaning dependencies were already registered)
+		self::$_instance->_dependency_map[ $class ] = $dependency_count
+			// then truncate the  final array to match that count
+			? array_slice($dependencies, 0, $dependency_count)
+			// otherwise just take the incoming array because nothing previously existed
+			: $dependencies;
+		return $registered;
+	}
+
+
+
+	/**
+	 * @param string $class_name
+	 * @param string $loader
+	 * @return bool
+	 * @throws DomainException
+	 */
+	public static function register_class_loader($class_name, $loader = 'load_core')
+	{
+		if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
+			throw new DomainException(
+				esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
+			);
+		}
+		// check that loader is callable or method starts with "load_" and exists in EE_Registry
+		if (
+			! is_callable($loader)
+			&& (
+				strpos($loader, 'load_') !== 0
+				|| ! method_exists('EE_Registry', $loader)
+			)
+		) {
+			throw new DomainException(
+				sprintf(
+					esc_html__(
+						'"%1$s" is not a valid loader method on EE_Registry.',
+						'event_espresso'
+					),
+					$loader
+				)
+			);
+		}
+		$class_name = self::$_instance->get_alias($class_name);
+		if (! isset(self::$_instance->_class_loaders[$class_name])) {
+			self::$_instance->_class_loaders[$class_name] = $loader;
+			return true;
+		}
+		return false;
+	}
+
+
+
+	/**
+	 * @return array
+	 */
+	public function dependency_map()
+	{
+		return $this->_dependency_map;
+	}
+
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name
+	 *
+	 * @param string $class_name
+	 * @return boolean
+	 */
+	public function has($class_name = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		return isset($this->_dependency_map[$class_name]) ? true : false;
+	}
+
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name AND dependency
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return bool
+	 */
+	public function has_dependency_for_class($class_name = '', $dependency = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->get_alias($dependency);
+		return isset($this->_dependency_map[$class_name][$dependency])
+			? true
+			: false;
+	}
+
+
+
+	/**
+	 * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return int
+	 */
+	public function loading_strategy_for_class_dependency($class_name = '', $dependency = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->get_alias($dependency);
+		return $this->has_dependency_for_class($class_name, $dependency)
+			? $this->_dependency_map[$class_name][$dependency]
+			: EE_Dependency_Map::not_registered;
+	}
+
+
+
+	/**
+	 * @param string $class_name
+	 * @return string | Closure
+	 */
+	public function class_loader($class_name)
+	{
+		// all legacy models use load_model()
+		if(strpos($class_name, 'EEM_') === 0){
+			return 'load_model';
+		}
+		$class_name = $this->get_alias($class_name);
+		return isset($this->_class_loaders[$class_name]) ? $this->_class_loaders[$class_name] : '';
+	}
+
+
+
+	/**
+	 * @return array
+	 */
+	public function class_loaders()
+	{
+		return $this->_class_loaders;
+	}
+
+
+
+	/**
+	 * adds an alias for a classname
+	 *
+	 * @param string $class_name the class name that should be used (concrete class to replace interface)
+	 * @param string $alias      the class name that would be type hinted for (abstract parent or interface)
+	 * @param string $for_class  the class that has the dependency (is type hinting for the interface)
+	 */
+	public function add_alias($class_name, $alias, $for_class = '')
+	{
+		if ($for_class !== '') {
+			if (! isset($this->_aliases[$for_class])) {
+				$this->_aliases[$for_class] = array();
+			}
+			$this->_aliases[$for_class][$class_name] = $alias;
+		}
+		$this->_aliases[$class_name] = $alias;
+	}
+
+
+
+	/**
+	 * returns TRUE if the provided class name has an alias
+	 *
+	 * @param string $class_name
+	 * @param string $for_class
+	 * @return bool
+	 */
+	public function has_alias($class_name = '', $for_class = '')
+	{
+		return isset($this->_aliases[$for_class][$class_name])
+			   || (
+				   isset($this->_aliases[$class_name])
+				   && ! is_array($this->_aliases[$class_name])
+			   );
+	}
+
+
+
+	/**
+	 * returns alias for class name if one exists, otherwise returns the original classname
+	 * functions recursively, so that multiple aliases can be used to drill down to a classname
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @param string $class_name
+	 * @param string $for_class
+	 * @return string
+	 */
+	public function get_alias($class_name = '', $for_class = '')
+	{
+		if (! $this->has_alias($class_name, $for_class)) {
+			return $class_name;
+		}
+		if ($for_class !== '' && isset($this->_aliases[ $for_class ][ $class_name ])) {
+			return $this->get_alias($this->_aliases[$for_class][$class_name], $for_class);
+		}
+		return $this->get_alias($this->_aliases[$class_name]);
+	}
+
+
+
+	/**
+	 * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
+	 * if one exists, or whether a new object should be generated every time the requested class is loaded.
+	 * This is done by using the following class constants:
+	 *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
+	 *        EE_Dependency_Map::load_new_object - generates a new object every time
+	 */
+	protected function _register_core_dependencies()
+	{
+		$this->_dependency_map = array(
+			'EE_Request_Handler'                                                                                          => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_System'                                                                                                   => array(
+				'EE_Registry'                                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EE_Maintenance_Mode'                         => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Session'                                                                                                  => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
+				'EE_Encryption'                                            => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Cart'                                                                                                     => array(
+				'EE_Session' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Front_Controller'                                                                                         => array(
+				'EE_Registry'              => EE_Dependency_Map::load_from_cache,
+				'EE_Request_Handler'       => EE_Dependency_Map::load_from_cache,
+				'EE_Module_Request_Router' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messenger_Collection_Loader'                                                                              => array(
+				'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Message_Type_Collection_Loader'                                                                           => array(
+				'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Message_Resource_Manager'                                                                                 => array(
+				'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
+				'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
+				'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Message_Factory'                                                                                          => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_messages'                                                                                                 => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Generator'                                                                                       => array(
+				'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
+				'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
+				'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
+				'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Processor'                                                                                       => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Queue'                                                                                           => array(
+				'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Messages_Template_Defaults'                                                                               => array(
+				'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
+				'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Message_To_Generate_From_Request'                                                                         => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+				'EE_Request_Handler'          => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandBus'                                                             => array(
+				'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\services\commands\CommandHandler'                                                              => array(
+				'EE_Registry'         => EE_Dependency_Map::load_from_cache,
+				'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandHandlerManager'                                                  => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CompositeCommandHandler'                                                => array(
+				'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandFactory'                                                         => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\middleware\CapChecker'                                                  => array(
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                         => array(
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                     => array(
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CreateRegistrationCommandHandler'                          => array(
+				'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => array(
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => array(
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => array(
+				'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => array(
+				'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => array(
+				'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => array(
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                   => array(
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler'                                  => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\database\TableManager'                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Data_Migration_Class_Base'                                                                                => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_1_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_2_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_3_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_4_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_5_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_6_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_7_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_8_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_9_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\assets\Registry'                                                                 => array(
+				'EE_Template_Config' => EE_Dependency_Map::load_from_cache,
+				'EE_Currency_Config' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                             => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                              => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                        => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                              => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                        => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                               => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\cache\BasicCacheManager'                        => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\cache\PostRelatedCacheManager'                  => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\validation\email\EmailValidationService' => array(
+				'EE_Registration_Config'                                  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'              => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\values\EmailAddress'                              => array(
+				null,
+				'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\orm\ModelFieldFactory' => array(
+				'EventEspresso\core\services\loaders\Loader'              => EE_Dependency_Map::load_from_cache,
+			),
+			'LEGACY_MODELS'                                                   => array(
+				null,
+				'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Module_Request_Router' => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Registration_Processor' => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\notifications\PersistentAdminNoticeManager' => array(
+				null,
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Admin_Transactions_List_Table' => array(
+				null,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+			),
+		);
+	}
+
+
+
+	/**
+	 * Registers how core classes are loaded.
+	 * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
+	 *        'EE_Request_Handler' => 'load_core'
+	 *        'EE_Messages_Queue'  => 'load_lib'
+	 *        'EEH_Debug_Tools'    => 'load_helper'
+	 * or, if greater control is required, by providing a custom closure. For example:
+	 *        'Some_Class' => function () {
+	 *            return new Some_Class();
+	 *        },
+	 * This is required for instantiating dependencies
+	 * where an interface has been type hinted in a class constructor. For example:
+	 *        'Required_Interface' => function () {
+	 *            return new A_Class_That_Implements_Required_Interface();
+	 *        },
+	 *
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidArgumentException
+	 */
+	protected function _register_core_class_loaders()
+	{
+		//for PHP5.3 compat, we need to register any properties called here in a variable because `$this` cannot
+		//be used in a closure.
+		$request = &$this->request;
+		$response = &$this->response;
+		$legacy_request = &$this->legacy_request;
+		// $loader = &$this->loader;
+		$this->_class_loaders = array(
+			//load_core
+			'EE_Capabilities'          => 'load_core',
+			'EE_Encryption'            => 'load_core',
+			'EE_Front_Controller'      => 'load_core',
+			'EE_Module_Request_Router' => 'load_core',
+			'EE_Registry'              => 'load_core',
+			'EE_Request'               => function () use (&$legacy_request) {
+				return $legacy_request;
+			},
+			'EventEspresso\core\services\request\Request' => function () use (&$request) {
+				return $request;
+			},
+			'EventEspresso\core\services\request\Response' => function () use (&$response) {
+				return $response;
+			},
+			'EE_Request_Handler'       => 'load_core',
+			'EE_Session'               => 'load_core',
+			'EE_Cron_Tasks'            => 'load_core',
+			'EE_System'                => 'load_core',
+			'EE_Maintenance_Mode'      => 'load_core',
+			'EE_Register_CPTs'         => 'load_core',
+			'EE_Admin'                 => 'load_core',
+			//load_lib
+			'EE_Message_Resource_Manager'          => 'load_lib',
+			'EE_Message_Type_Collection'           => 'load_lib',
+			'EE_Message_Type_Collection_Loader'    => 'load_lib',
+			'EE_Messenger_Collection'              => 'load_lib',
+			'EE_Messenger_Collection_Loader'       => 'load_lib',
+			'EE_Messages_Processor'                => 'load_lib',
+			'EE_Message_Repository'                => 'load_lib',
+			'EE_Messages_Queue'                    => 'load_lib',
+			'EE_Messages_Data_Handler_Collection'  => 'load_lib',
+			'EE_Message_Template_Group_Collection' => 'load_lib',
+			'EE_Payment_Method_Manager'            => 'load_lib',
+			'EE_Messages_Generator'                => function () {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Generator',
+					array(),
+					false,
+					false
+				);
+			},
+			'EE_Messages_Template_Defaults'        => function ($arguments = array()) {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Template_Defaults',
+					$arguments,
+					false,
+					false
+				);
+			},
+			//load_model
+			// 'EEM_Attendee'                         => 'load_model',
+			// 'EEM_Message_Template_Group'           => 'load_model',
+			// 'EEM_Message_Template'                 => 'load_model',
+			//load_helper
+			'EEH_Parse_Shortcodes'                 => function () {
+				if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
+					return new EEH_Parse_Shortcodes();
+				}
+				return null;
+			},
+			'EE_Template_Config'                   => function () {
+				return EE_Config::instance()->template_settings;
+			},
+			'EE_Currency_Config'                   => function () {
+				return EE_Config::instance()->currency;
+			},
+			'EE_Registration_Config'                   => function () {
+				return EE_Config::instance()->registration;
+			},
+			'EventEspresso\core\services\loaders\Loader' => function () {
+				return LoaderFactory::getLoader();
+			},
+		);
+	}
+
+
+
+	/**
+	 * can be used for supplying alternate names for classes,
+	 * or for connecting interface names to instantiable classes
+	 */
+	protected function _register_core_aliases()
+	{
+		$this->_aliases = array(
+			'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
+			'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
+			'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
+			'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
+			'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
+			'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
+			'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
+			'CreateRegCodeCommandHandler'                                                  => 'EventEspresso\core\services\commands\registration\CreateRegCodeCommand',
+			'CreateRegUrlLinkCommandHandler'                                               => 'EventEspresso\core\services\commands\registration\CreateRegUrlLinkCommand',
+			'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
+			'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommand',
+			'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommand',
+			'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
+			'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
+			'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommand',
+			'CreateTransactionCommandHandler'                                     => 'EventEspresso\core\services\commands\transaction\CreateTransactionCommandHandler',
+			'CreateAttendeeCommandHandler'                                        => 'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler',
+			'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
+			'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
+			'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
+			'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
+			'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
+			'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
+			'CommandFactoryInterface'                                                     => 'EventEspresso\core\services\commands\CommandFactoryInterface',
+			'EventEspresso\core\services\commands\CommandFactoryInterface'                => 'EventEspresso\core\services\commands\CommandFactory',
+			'EventEspresso\core\domain\services\session\SessionIdentifierInterface'       => 'EE_Session',
+			'EmailValidatorInterface'                                                     => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
+			'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface' => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
+			'NoticeConverterInterface'                                            => 'EventEspresso\core\services\notices\NoticeConverterInterface',
+			'EventEspresso\core\services\notices\NoticeConverterInterface'        => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
+			'NoticesContainerInterface'                                           => 'EventEspresso\core\services\notices\NoticesContainerInterface',
+			'EventEspresso\core\services\notices\NoticesContainerInterface'       => 'EventEspresso\core\services\notices\NoticesContainer',
+			'EventEspresso\core\services\request\RequestInterface'                => 'EventEspresso\core\services\request\Request',
+			'EventEspresso\core\services\request\ResponseInterface'               => 'EventEspresso\core\services\request\Response',
+			'EventEspresso\core\domain\DomainInterface'                           => 'EventEspresso\core\domain\Domain',
+		);
+		if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
+			$this->_aliases['EventEspresso\core\services\notices\NoticeConverterInterface'] = 'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices';
+		}
+	}
+
+
+
+	/**
+	 * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
+	 * request Primarily used by unit tests.
+	 *
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	public function reset()
+	{
+		$this->_register_core_class_loaders();
+		$this->_register_core_dependencies();
+	}
 
 
 }

core/EE_Session.core.php

Indentation +1179 added lines, -1179 removed lines

@@ -22,1180 +22,1180 @@ 
 class EE_Session implements SessionIdentifierInterface
 {
 
-    const session_id_prefix    = 'ee_ssn_';
-
-    const hash_check_prefix    = 'ee_shc_';
-
-    const OPTION_NAME_SETTINGS = 'ee_session_settings';
-
-    /**
-     * instance of the EE_Session object
-     *
-     * @var EE_Session
-     */
-    private static $_instance;
-
-    /**
-     * @var CacheStorageInterface $cache_storage
-     */
-    protected $cache_storage;
-
-    /**
-     * EE_Encryption object
-     *
-     * @var EE_Encryption
-     */
-    protected $encryption;
-
-    /**
-     * the session id
-     *
-     * @var string
-     */
-    private $_sid;
-
-    /**
-     * session id salt
-     *
-     * @var string
-     */
-    private $_sid_salt;
-
-    /**
-     * session data
-     *
-     * @var array
-     */
-    private $_session_data = array();
-
-    /**
-     * how long an EE session lasts
-     * default session lifespan of 1 hour (for not so instant IPNs)
-     *
-     * @var SessionLifespan $session_lifespan
-     */
-    private $session_lifespan;
-
-    /**
-     * session expiration time as Unix timestamp in GMT
-     *
-     * @var int
-     */
-    private $_expiration;
-
-    /**
-     * whether or not session has expired at some point
-     *
-     * @var boolean
-     */
-    private $_expired = false;
-
-    /**
-     * current time as Unix timestamp in GMT
-     *
-     * @var int
-     */
-    private $_time;
-
-    /**
-     * whether to encrypt session data
-     *
-     * @var bool
-     */
-    private $_use_encryption;
-
-    /**
-     * well... according to the server...
-     *
-     * @var null
-     */
-    private $_user_agent;
-
-    /**
-     * do you really trust the server ?
-     *
-     * @var null
-     */
-    private $_ip_address;
-
-    /**
-     * current WP user_id
-     *
-     * @var null
-     */
-    private $_wp_user_id;
-
-    /**
-     * array for defining default session vars
-     *
-     * @var array
-     */
-    private $_default_session_vars = array(
-        'id'            => null,
-        'user_id'       => null,
-        'ip_address'    => null,
-        'user_agent'    => null,
-        'init_access'   => null,
-        'last_access'   => null,
-        'expiration'    => null,
-        'pages_visited' => array(),
-    );
-
-    /**
-     * timestamp for when last garbage collection cycle was performed
-     *
-     * @var int $_last_gc
-     */
-    private $_last_gc;
-
-    /**
-     * @var RequestInterface $request
-     */
-    protected $request;
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param CacheStorageInterface $cache_storage
-     * @param SessionLifespan|null  $lifespan
-     * @param RequestInterface      $request
-     * @param EE_Encryption         $encryption
-     * @return EE_Session
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function instance(
-        CacheStorageInterface $cache_storage = null,
-        SessionLifespan $lifespan = null,
-        RequestInterface $request = null,
-        EE_Encryption $encryption = null
-    ) {
-        // check if class object is instantiated
-        // session loading is turned ON by default, but prior to the init hook, can be turned back OFF via:
-        // add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
-            self::$_instance = new self(
-                $cache_storage,
-                $lifespan,
-                $request,
-                $encryption
-            );
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * protected constructor to prevent direct creation
-     *
-     * @param CacheStorageInterface $cache_storage
-     * @param SessionLifespan       $lifespan
-     * @param RequestInterface      $request
-     * @param EE_Encryption         $encryption
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function __construct(
-        CacheStorageInterface $cache_storage,
-        SessionLifespan $lifespan,
-        RequestInterface $request,
-        EE_Encryption $encryption = null
-    ) {
-        // session loading is turned ON by default, but prior to the init hook, can be turned back OFF via: add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! apply_filters('FHEE_load_EE_Session', true)) {
-            return;
-        }
-        $this->session_lifespan = $lifespan;
-        $this->request          = $request;
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        if (! defined('ESPRESSO_SESSION')) {
-            define('ESPRESSO_SESSION', true);
-        }
-        // retrieve session options from db
-        $session_settings = (array) get_option(EE_Session::OPTION_NAME_SETTINGS, array());
-        if (! empty($session_settings)) {
-            // cycle though existing session options
-            foreach ($session_settings as $var_name => $session_setting) {
-                // set values for class properties
-                $var_name          = '_' . $var_name;
-                $this->{$var_name} = $session_setting;
-            }
-        }
-        $this->cache_storage = $cache_storage;
-        // are we using encryption?
-        $this->_use_encryption = $encryption instanceof EE_Encryption
-                                 && EE_Registry::instance()->CFG->admin->encode_session_data();
-        // \EEH_Debug_Tools::printr($this->_use_encryption, '$this->_use_encryption', __FILE__, __LINE__);
-        // encrypt data via: $this->encryption->encrypt();
-        $this->encryption = $encryption;
-        // filter hook allows outside functions/classes/plugins to change default empty cart
-        $extra_default_session_vars = apply_filters('FHEE__EE_Session__construct__extra_default_session_vars', array());
-        array_merge($this->_default_session_vars, $extra_default_session_vars);
-        // apply default session vars
-        $this->_set_defaults();
-        add_action('AHEE__EE_System__initialize', array($this, 'open_session'));
-        // check request for 'clear_session' param
-        add_action('AHEE__EE_Request_Handler__construct__complete', array($this, 'wp_loaded'));
-        // once everything is all said and done,
-        add_action('shutdown', array($this, 'update'), 100);
-        add_action('shutdown', array($this, 'garbageCollection'), 1000);
-        $this->configure_garbage_collection_filters();
-    }
-
-
-
-    /**
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidSessionDataException
-     */
-    public function open_session()
-    {
-        // check for existing session and retrieve it from db
-        if (! $this->_espresso_session()) {
-            // or just start a new one
-            $this->_create_espresso_session();
-        }
-    }
-
-
-
-    /**
-     * @return bool
-     */
-    public function expired()
-    {
-        return $this->_expired;
-    }
-
-
-
-    /**
-     * @return void
-     */
-    public function reset_expired()
-    {
-        $this->_expired = false;
-    }
-
-
-    /**
-     * @return int
-     */
-    public function expiration()
-    {
-        return $this->_expiration;
-    }
-
-
-
-    /**
-     * @return int
-     */
-    public function extension()
-    {
-        return apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS);
-    }
-
-
-
-    /**
-     * @param int $time number of seconds to add to session expiration
-     */
-    public function extend_expiration($time = 0)
-    {
-        $time              = $time ? $time : $this->extension();
-        $this->_expiration += absint($time);
-    }
-
-
-
-    /**
-     * @return int
-     */
-    public function lifespan()
-    {
-        return $this->session_lifespan->inSeconds();
-    }
-
-
-
-    /**
-     * This just sets some defaults for the _session data property
-     *
-     * @access private
-     * @return void
-     */
-    private function _set_defaults()
-    {
-        // set some defaults
-        foreach ($this->_default_session_vars as $key => $default_var) {
-            if (is_array($default_var)) {
-                $this->_session_data[ $key ] = array();
-            } else {
-                $this->_session_data[ $key ] = '';
-            }
-        }
-    }
+	const session_id_prefix    = 'ee_ssn_';
+
+	const hash_check_prefix    = 'ee_shc_';
+
+	const OPTION_NAME_SETTINGS = 'ee_session_settings';
+
+	/**
+	 * instance of the EE_Session object
+	 *
+	 * @var EE_Session
+	 */
+	private static $_instance;
+
+	/**
+	 * @var CacheStorageInterface $cache_storage
+	 */
+	protected $cache_storage;
+
+	/**
+	 * EE_Encryption object
+	 *
+	 * @var EE_Encryption
+	 */
+	protected $encryption;
+
+	/**
+	 * the session id
+	 *
+	 * @var string
+	 */
+	private $_sid;
+
+	/**
+	 * session id salt
+	 *
+	 * @var string
+	 */
+	private $_sid_salt;
+
+	/**
+	 * session data
+	 *
+	 * @var array
+	 */
+	private $_session_data = array();
+
+	/**
+	 * how long an EE session lasts
+	 * default session lifespan of 1 hour (for not so instant IPNs)
+	 *
+	 * @var SessionLifespan $session_lifespan
+	 */
+	private $session_lifespan;
+
+	/**
+	 * session expiration time as Unix timestamp in GMT
+	 *
+	 * @var int
+	 */
+	private $_expiration;
+
+	/**
+	 * whether or not session has expired at some point
+	 *
+	 * @var boolean
+	 */
+	private $_expired = false;
+
+	/**
+	 * current time as Unix timestamp in GMT
+	 *
+	 * @var int
+	 */
+	private $_time;
+
+	/**
+	 * whether to encrypt session data
+	 *
+	 * @var bool
+	 */
+	private $_use_encryption;
+
+	/**
+	 * well... according to the server...
+	 *
+	 * @var null
+	 */
+	private $_user_agent;
+
+	/**
+	 * do you really trust the server ?
+	 *
+	 * @var null
+	 */
+	private $_ip_address;
+
+	/**
+	 * current WP user_id
+	 *
+	 * @var null
+	 */
+	private $_wp_user_id;
+
+	/**
+	 * array for defining default session vars
+	 *
+	 * @var array
+	 */
+	private $_default_session_vars = array(
+		'id'            => null,
+		'user_id'       => null,
+		'ip_address'    => null,
+		'user_agent'    => null,
+		'init_access'   => null,
+		'last_access'   => null,
+		'expiration'    => null,
+		'pages_visited' => array(),
+	);
+
+	/**
+	 * timestamp for when last garbage collection cycle was performed
+	 *
+	 * @var int $_last_gc
+	 */
+	private $_last_gc;
+
+	/**
+	 * @var RequestInterface $request
+	 */
+	protected $request;
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param CacheStorageInterface $cache_storage
+	 * @param SessionLifespan|null  $lifespan
+	 * @param RequestInterface      $request
+	 * @param EE_Encryption         $encryption
+	 * @return EE_Session
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function instance(
+		CacheStorageInterface $cache_storage = null,
+		SessionLifespan $lifespan = null,
+		RequestInterface $request = null,
+		EE_Encryption $encryption = null
+	) {
+		// check if class object is instantiated
+		// session loading is turned ON by default, but prior to the init hook, can be turned back OFF via:
+		// add_filter( 'FHEE_load_EE_Session', '__return_false' );
+		if (! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
+			self::$_instance = new self(
+				$cache_storage,
+				$lifespan,
+				$request,
+				$encryption
+			);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * protected constructor to prevent direct creation
+	 *
+	 * @param CacheStorageInterface $cache_storage
+	 * @param SessionLifespan       $lifespan
+	 * @param RequestInterface      $request
+	 * @param EE_Encryption         $encryption
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function __construct(
+		CacheStorageInterface $cache_storage,
+		SessionLifespan $lifespan,
+		RequestInterface $request,
+		EE_Encryption $encryption = null
+	) {
+		// session loading is turned ON by default, but prior to the init hook, can be turned back OFF via: add_filter( 'FHEE_load_EE_Session', '__return_false' );
+		if (! apply_filters('FHEE_load_EE_Session', true)) {
+			return;
+		}
+		$this->session_lifespan = $lifespan;
+		$this->request          = $request;
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		if (! defined('ESPRESSO_SESSION')) {
+			define('ESPRESSO_SESSION', true);
+		}
+		// retrieve session options from db
+		$session_settings = (array) get_option(EE_Session::OPTION_NAME_SETTINGS, array());
+		if (! empty($session_settings)) {
+			// cycle though existing session options
+			foreach ($session_settings as $var_name => $session_setting) {
+				// set values for class properties
+				$var_name          = '_' . $var_name;
+				$this->{$var_name} = $session_setting;
+			}
+		}
+		$this->cache_storage = $cache_storage;
+		// are we using encryption?
+		$this->_use_encryption = $encryption instanceof EE_Encryption
+								 && EE_Registry::instance()->CFG->admin->encode_session_data();
+		// \EEH_Debug_Tools::printr($this->_use_encryption, '$this->_use_encryption', __FILE__, __LINE__);
+		// encrypt data via: $this->encryption->encrypt();
+		$this->encryption = $encryption;
+		// filter hook allows outside functions/classes/plugins to change default empty cart
+		$extra_default_session_vars = apply_filters('FHEE__EE_Session__construct__extra_default_session_vars', array());
+		array_merge($this->_default_session_vars, $extra_default_session_vars);
+		// apply default session vars
+		$this->_set_defaults();
+		add_action('AHEE__EE_System__initialize', array($this, 'open_session'));
+		// check request for 'clear_session' param
+		add_action('AHEE__EE_Request_Handler__construct__complete', array($this, 'wp_loaded'));
+		// once everything is all said and done,
+		add_action('shutdown', array($this, 'update'), 100);
+		add_action('shutdown', array($this, 'garbageCollection'), 1000);
+		$this->configure_garbage_collection_filters();
+	}
+
+
+
+	/**
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidSessionDataException
+	 */
+	public function open_session()
+	{
+		// check for existing session and retrieve it from db
+		if (! $this->_espresso_session()) {
+			// or just start a new one
+			$this->_create_espresso_session();
+		}
+	}
+
+
+
+	/**
+	 * @return bool
+	 */
+	public function expired()
+	{
+		return $this->_expired;
+	}
+
+
+
+	/**
+	 * @return void
+	 */
+	public function reset_expired()
+	{
+		$this->_expired = false;
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function expiration()
+	{
+		return $this->_expiration;
+	}
+
+
+
+	/**
+	 * @return int
+	 */
+	public function extension()
+	{
+		return apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS);
+	}
+
+
+
+	/**
+	 * @param int $time number of seconds to add to session expiration
+	 */
+	public function extend_expiration($time = 0)
+	{
+		$time              = $time ? $time : $this->extension();
+		$this->_expiration += absint($time);
+	}
+
+
+
+	/**
+	 * @return int
+	 */
+	public function lifespan()
+	{
+		return $this->session_lifespan->inSeconds();
+	}
+
+
+
+	/**
+	 * This just sets some defaults for the _session data property
+	 *
+	 * @access private
+	 * @return void
+	 */
+	private function _set_defaults()
+	{
+		// set some defaults
+		foreach ($this->_default_session_vars as $key => $default_var) {
+			if (is_array($default_var)) {
+				$this->_session_data[ $key ] = array();
+			} else {
+				$this->_session_data[ $key ] = '';
+			}
+		}
+	}
 
 
-
-    /**
-     * @retrieve  session data
-     * @access    public
-     * @return    string
-     */
-    public function id()
-    {
-        return $this->_sid;
-    }
+
+	/**
+	 * @retrieve  session data
+	 * @access    public
+	 * @return    string
+	 */
+	public function id()
+	{
+		return $this->_sid;
+	}
 
 
 
-    /**
-     * @param \EE_Cart $cart
-     * @return bool
-     */
-    public function set_cart(EE_Cart $cart)
-    {
-        $this->_session_data['cart'] = $cart;
-        return true;
-    }
+	/**
+	 * @param \EE_Cart $cart
+	 * @return bool
+	 */
+	public function set_cart(EE_Cart $cart)
+	{
+		$this->_session_data['cart'] = $cart;
+		return true;
+	}
 
 
 
-    /**
-     * reset_cart
-     */
-    public function reset_cart()
-    {
-        do_action('AHEE__EE_Session__reset_cart__before_reset', $this);
-        $this->_session_data['cart'] = null;
-    }
-
-
-
-    /**
-     * @return \EE_Cart
-     */
-    public function cart()
-    {
-        return isset($this->_session_data['cart']) && $this->_session_data['cart'] instanceof EE_Cart
-            ? $this->_session_data['cart']
-            : null;
-    }
-
-
-
-    /**
-     * @param \EE_Checkout $checkout
-     * @return bool
-     */
-    public function set_checkout(EE_Checkout $checkout)
-    {
-        $this->_session_data['checkout'] = $checkout;
-        return true;
-    }
-
-
-
-    /**
-     * reset_checkout
-     */
-    public function reset_checkout()
-    {
-        do_action('AHEE__EE_Session__reset_checkout__before_reset', $this);
-        $this->_session_data['checkout'] = null;
-    }
-
-
-
-    /**
-     * @return \EE_Checkout
-     */
-    public function checkout()
-    {
-        return isset($this->_session_data['checkout']) && $this->_session_data['checkout'] instanceof EE_Checkout
-            ? $this->_session_data['checkout']
-            : null;
-    }
-
-
-
-    /**
-     * @param \EE_Transaction $transaction
-     * @return bool
-     * @throws EE_Error
-     */
-    public function set_transaction(EE_Transaction $transaction)
-    {
-        // first remove the session from the transaction before we save the transaction in the session
-        $transaction->set_txn_session_data(null);
-        $this->_session_data['transaction'] = $transaction;
-        return true;
-    }
-
-
-
-    /**
-     * reset_transaction
-     */
-    public function reset_transaction()
-    {
-        do_action('AHEE__EE_Session__reset_transaction__before_reset', $this);
-        $this->_session_data['transaction'] = null;
-    }
-
-
-
-    /**
-     * @return \EE_Transaction
-     */
-    public function transaction()
-    {
-        return isset($this->_session_data['transaction'])
-               && $this->_session_data['transaction'] instanceof EE_Transaction
-            ? $this->_session_data['transaction']
-            : null;
-    }
-
-
-
-    /**
-     * retrieve session data
-     *
-     * @access    public
-     * @param null $key
-     * @param bool $reset_cache
-     * @return    array
-     */
-    public function get_session_data($key = null, $reset_cache = false)
-    {
-        if ($reset_cache) {
-            $this->reset_cart();
-            $this->reset_checkout();
-            $this->reset_transaction();
-        }
-        if (! empty($key)) {
-            return isset($this->_session_data[ $key ]) ? $this->_session_data[ $key ] : null;
-        }
-        return $this->_session_data;
-    }
-
-
-
-    /**
-     * set session data
-     *
-     * @access    public
-     * @param    array $data
-     * @return    TRUE on success, FALSE on fail
-     */
-    public function set_session_data($data)
-    {
-
-        // nothing ??? bad data ??? go home!
-        if (empty($data) || ! is_array($data)) {
-            EE_Error::add_error(__('No session data or invalid session data was provided.', 'event_espresso'), __FILE__,
-                __FUNCTION__, __LINE__);
-            return false;
-        }
-        foreach ($data as $key => $value) {
-            if (isset($this->_default_session_vars[ $key ])) {
-                EE_Error::add_error(sprintf(__('Sorry! %s is a default session datum and can not be reset.',
-                    'event_espresso'), $key), __FILE__, __FUNCTION__, __LINE__);
-                return false;
-            }
-            $this->_session_data[ $key ] = $value;
-        }
-        return true;
-    }
-
-
-
-    /**
-     * @initiate session
-     * @access   private
-     * @return TRUE on success, FALSE on fail
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidSessionDataException
-     */
-    private function _espresso_session()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        // check that session has started
-        if (session_id() === '') {
-            //starts a new session if one doesn't already exist, or re-initiates an existing one
-            session_start();
-        }
-        // get our modified session ID
-        $this->_sid = $this->_generate_session_id();
-        // and the visitors IP
-        $this->_ip_address = $this->request->ipAddress();
-        // set the "user agent"
-        $this->_user_agent = $this->request->userAgent();
-        // now let's retrieve what's in the db
-        $session_data = $this->_retrieve_session_data();
-        if (! empty($session_data)) {
-            // get the current time in UTC
-            $this->_time = $this->_time !== null ? $this->_time : time();
-            // and reset the session expiration
-            $this->_expiration = isset($session_data['expiration'])
-                ? $session_data['expiration']
-                : $this->_time + $this->session_lifespan->inSeconds();
-        } else {
-            // set initial site access time and the session expiration
-            $this->_set_init_access_and_expiration();
-            // set referer
-            $this->_session_data['pages_visited'][ $this->_session_data['init_access'] ] = isset($_SERVER['HTTP_REFERER'])
-                ? esc_attr($_SERVER['HTTP_REFERER'])
-                : '';
-            // no previous session = go back and create one (on top of the data above)
-            return false;
-        }
-        // now the user agent
-        if ($session_data['user_agent'] !== $this->_user_agent) {
-            return false;
-        }
-        // wait a minute... how old are you?
-        if ($this->_time > $this->_expiration) {
-            // yer too old fer me!
-            $this->_expired = true;
-            // wipe out everything that isn't a default session datum
-            $this->clear_session(__CLASS__, __FUNCTION__);
-        }
-        // make event espresso session data available to plugin
-        $this->_session_data = array_merge($this->_session_data, $session_data);
-        return true;
-    }
-
-
-
-    /**
-     * _get_session_data
-     * Retrieves the session data, and attempts to correct any encoding issues that can occur due to improperly setup
-     * databases
-     *
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidSessionDataException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _retrieve_session_data()
-    {
-        $ssn_key = EE_Session::session_id_prefix . $this->_sid;
-        try {
-            // we're using WP's Transient API to store session data using the PHP session ID as the option name
-            $session_data = $this->cache_storage->get($ssn_key, false);
-            if (empty($session_data)) {
-                return array();
-            }
-            if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
-                $hash_check = $this->cache_storage->get(
-                    EE_Session::hash_check_prefix . $this->_sid,
-                    false
-                );
-                if ($hash_check && $hash_check !== md5($session_data)) {
-                    EE_Error::add_error(
-                        sprintf(
-                            __(
-                                'The stored data for session %1$s failed to pass a hash check and therefore appears to be invalid.',
-                                'event_espresso'
-                            ),
-                            EE_Session::session_id_prefix . $this->_sid
-                        ),
-                        __FILE__, __FUNCTION__, __LINE__
-                    );
-                }
-            }
-        } catch (Exception $e) {
-            // let's just eat that error for now and attempt to correct any corrupted data
-            global $wpdb;
-            $row          = $wpdb->get_row(
-                $wpdb->prepare(
-                    "SELECT option_value FROM {$wpdb->options} WHERE option_name = %s LIMIT 1",
-                    '_transient_' . $ssn_key
-                )
-            );
-            $session_data = is_object($row) ? $row->option_value : null;
-            if ($session_data) {
-                $session_data = preg_replace_callback(
-                    '!s:(d+):"(.*?)";!',
-                    function ($match)
-                    {
-                        return $match[1] === strlen($match[2])
-                            ? $match[0]
-                            : 's:' . strlen($match[2]) . ':"' . $match[2] . '";';
-                    },
-                    $session_data
-                );
-            }
-            $session_data = maybe_unserialize($session_data);
-        }
-        // in case the data is encoded... try to decode it
-        $session_data = $this->encryption instanceof EE_Encryption
-            ? $this->encryption->base64_string_decode($session_data)
-            : $session_data;
-        if (! is_array($session_data)) {
-            try {
-                $session_data = maybe_unserialize($session_data);
-            } catch (Exception $e) {
-                $msg = esc_html__(
-                    'An error occurred while attempting to unserialize the session data.',
-                    'event_espresso'
-                );
-                $msg .= WP_DEBUG
-                    ? '<br><pre>'
-                      . print_r($session_data, true)
-                      . '</pre><br>'
-                      . $this->find_serialize_error($session_data)
-                    : '';
-                $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
-                throw new InvalidSessionDataException($msg, 0, $e);
-            }
-        }
-        // just a check to make sure the session array is indeed an array
-        if (! is_array($session_data)) {
-            // no?!?! then something is wrong
-            $msg = esc_html__(
-                'The session data is missing, invalid, or corrupted.',
-                'event_espresso'
-            );
-            $msg .= WP_DEBUG
-                ? '<br><pre>' . print_r($session_data, true) . '</pre><br>' . $this->find_serialize_error($session_data)
-                : '';
-            $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
-            throw new InvalidSessionDataException($msg);
-        }
-        if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {
-            $session_data['transaction'] = EEM_Transaction::instance()->get_one_by_ID(
-                $session_data['transaction']
-            );
-        }
-        return $session_data;
-    }
-
-
-
-    /**
-     * _generate_session_id
-     * Retrieves the PHP session id either directly from the PHP session,
-     * or from the $_REQUEST array if it was passed in from an AJAX request.
-     * The session id is then salted and hashed (mmm sounds tasty)
-     * so that it can be safely used as a $_REQUEST param
-     *
-     * @return string
-     */
-    protected function _generate_session_id()
-    {
-        // check if the SID was passed explicitly, otherwise get from session, then add salt and hash it to reduce length
-        if (isset($_REQUEST['EESID'])) {
-            $session_id = sanitize_text_field($_REQUEST['EESID']);
-        } else {
-            $session_id = md5(session_id() . get_current_blog_id() . $this->_get_sid_salt());
-        }
-        return apply_filters('FHEE__EE_Session___generate_session_id__session_id', $session_id);
-    }
-
-
-
-    /**
-     * _get_sid_salt
-     *
-     * @return string
-     */
-    protected function _get_sid_salt()
-    {
-        // was session id salt already saved to db ?
-        if (empty($this->_sid_salt)) {
-            // no?  then maybe use WP defined constant
-            if (defined('AUTH_SALT')) {
-                $this->_sid_salt = AUTH_SALT;
-            }
-            // if salt doesn't exist or is too short
-            if (strlen($this->_sid_salt) < 32) {
-                // create a new one
-                $this->_sid_salt = wp_generate_password(64);
-            }
-            // and save it as a permanent session setting
-            $this->updateSessionSettings(array('sid_salt' => $this->_sid_salt));
-        }
-        return $this->_sid_salt;
-    }
-
-
-
-    /**
-     * _set_init_access_and_expiration
-     *
-     * @return void
-     */
-    protected function _set_init_access_and_expiration()
-    {
-        $this->_time       = time();
-        $this->_expiration = $this->_time + $this->session_lifespan->inSeconds();
-        // set initial site access time
-        $this->_session_data['init_access'] = $this->_time;
-        // and the session expiration
-        $this->_session_data['expiration'] = $this->_expiration;
-    }
-
-
-
-    /**
-     * @update session data  prior to saving to the db
-     * @access public
-     * @param bool $new_session
-     * @return TRUE on success, FALSE on fail
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function update($new_session = false)
-    {
-        $this->_session_data = $this->_session_data !== null
-                               && is_array($this->_session_data)
-                               && isset($this->_session_data['id'])
-            ? $this->_session_data
-            : array();
-        if (empty($this->_session_data)) {
-            $this->_set_defaults();
-        }
-        $session_data = array();
-        foreach ($this->_session_data as $key => $value) {
-
-            switch ($key) {
-
-                case 'id' :
-                    // session ID
-                    $session_data['id'] = $this->_sid;
-                    break;
-                case 'ip_address' :
-                    // visitor ip address
-                    $session_data['ip_address'] = $this->request->ipAddress();
-                    break;
-                case 'user_agent' :
-                    // visitor user_agent
-                    $session_data['user_agent'] = $this->_user_agent;
-                    break;
-                case 'init_access' :
-                    $session_data['init_access'] = absint($value);
-                    break;
-                case 'last_access' :
-                    // current access time
-                    $session_data['last_access'] = $this->_time;
-                    break;
-                case 'expiration' :
-                    // when the session expires
-                    $session_data['expiration'] = ! empty($this->_expiration)
-                        ? $this->_expiration
-                        : $session_data['init_access'] + $this->session_lifespan->inSeconds();
-                    break;
-                case 'user_id' :
-                    // current user if logged in
-                    $session_data['user_id'] = $this->_wp_user_id();
-                    break;
-                case 'pages_visited' :
-                    $page_visit = $this->_get_page_visit();
-                    if ($page_visit) {
-                        // set pages visited where the first will be the http referrer
-                        $this->_session_data['pages_visited'][ $this->_time ] = $page_visit;
-                        // we'll only save the last 10 page visits.
-                        $session_data['pages_visited'] = array_slice($this->_session_data['pages_visited'], -10);
-                    }
-                    break;
-                default :
-                    // carry any other data over
-                    $session_data[ $key ] = $this->_session_data[ $key ];
-            }
-        }
-        $this->_session_data = $session_data;
-        // creating a new session does not require saving to the db just yet
-        if (! $new_session) {
-            // ready? let's save
-            if ($this->_save_session_to_db()) {
-                return true;
-            }
-            return false;
-        }
-        // meh, why not?
-        return true;
-    }
-
-
-
-    /**
-     * @create session data array
-     * @access public
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _create_espresso_session()
-    {
-        do_action('AHEE_log', __CLASS__, __FUNCTION__, '');
-        // use the update function for now with $new_session arg set to TRUE
-        return $this->update(true) ? true : false;
-    }
-
-
-
-    /**
-     * _save_session_to_db
-     *
-     * @param bool $clear_session
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    private function _save_session_to_db($clear_session = false)
-    {
-        // don't save sessions for crawlers
-        // and unless we're deleting the session data, don't save anything if there isn't a cart
-        if ($this->request->isBot() || (! $clear_session && ! $this->cart() instanceof EE_Cart)) {
-            return false;
-        }
-        $transaction = $this->transaction();
-        if ($transaction instanceof EE_Transaction) {
-            if (! $transaction->ID()) {
-                $transaction->save();
-            }
-            $this->_session_data['transaction'] = $transaction->ID();
-        }
-        // then serialize all of our session data
-        $session_data = serialize($this->_session_data);
-        // do we need to also encode it to avoid corrupted data when saved to the db?
-        $session_data = $this->_use_encryption
-            ? $this->encryption->base64_string_encode($session_data)
-            : $session_data;
-        // maybe save hash check
-        if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
-            $this->cache_storage->add(
-                EE_Session::hash_check_prefix . $this->_sid,
-                md5($session_data),
-                $this->session_lifespan->inSeconds()
-            );
-        }
-        // we're using the Transient API for storing session data,
-        return $this->cache_storage->add(
-            EE_Session::session_id_prefix . $this->_sid,
-            $session_data,
-            $this->session_lifespan->inSeconds()
-        );
-    }
-
-
-    /**
-     * @get    the full page request the visitor is accessing
-     * @access public
-     * @return string
-     */
-    public function _get_page_visit()
-    {
-        $page_visit = home_url('/') . 'wp-admin/admin-ajax.php';
-        // check for request url
-        if (isset($_SERVER['REQUEST_URI'])) {
-            $http_host   = '';
-            $page_id     = '?';
-            $e_reg       = '';
-            $request_uri = esc_url($_SERVER['REQUEST_URI']);
-            $ru_bits     = explode('?', $request_uri);
-            $request_uri = $ru_bits[0];
-            // check for and grab host as well
-            if (isset($_SERVER['HTTP_HOST'])) {
-                $http_host = esc_url($_SERVER['HTTP_HOST']);
-            }
-            // check for page_id in SERVER REQUEST
-            if (isset($_REQUEST['page_id'])) {
-                // rebuild $e_reg without any of the extra parameters
-                $page_id = '?page_id=' . esc_attr($_REQUEST['page_id']) . '&amp;';
-            }
-            // check for $e_reg in SERVER REQUEST
-            if (isset($_REQUEST['ee'])) {
-                // rebuild $e_reg without any of the extra parameters
-                $e_reg = 'ee=' . esc_attr($_REQUEST['ee']);
-            }
-            $page_visit = rtrim($http_host . $request_uri . $page_id . $e_reg, '?');
-        }
-        return $page_visit !== home_url('/wp-admin/admin-ajax.php') ? $page_visit : '';
-    }
-
-
-
-    /**
-     * @the    current wp user id
-     * @access public
-     * @return int
-     */
-    public function _wp_user_id()
-    {
-        // if I need to explain the following lines of code, then you shouldn't be looking at this!
-        $this->_wp_user_id = get_current_user_id();
-        return $this->_wp_user_id;
-    }
-
-
-
-    /**
-     * Clear EE_Session data
-     *
-     * @access public
-     * @param string $class
-     * @param string $function
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function clear_session($class = '', $function = '')
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : ' . $class . '::' . $function . '()');
-        $this->reset_cart();
-        $this->reset_checkout();
-        $this->reset_transaction();
-        // wipe out everything that isn't a default session datum
-        $this->reset_data(array_keys($this->_session_data));
-        // reset initial site access time and the session expiration
-        $this->_set_init_access_and_expiration();
-        $this->_save_session_to_db(true);
-    }
-
-
-
-    /**
-     * @resets all non-default session vars
-     * @access public
-     * @param array|mixed $data_to_reset
-     * @param bool        $show_all_notices
-     * @return TRUE on success, FALSE on fail
-     */
-    public function reset_data($data_to_reset = array(), $show_all_notices = false)
-    {
-        // if $data_to_reset is not in an array, then put it in one
-        if (! is_array($data_to_reset)) {
-            $data_to_reset = array($data_to_reset);
-        }
-        // nothing ??? go home!
-        if (empty($data_to_reset)) {
-            EE_Error::add_error(__('No session data could be reset, because no session var name was provided.',
-                'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        $return_value = true;
-        // since $data_to_reset is an array, cycle through the values
-        foreach ($data_to_reset as $reset) {
-
-            // first check to make sure it is a valid session var
-            if (isset($this->_session_data[ $reset ])) {
-                // then check to make sure it is not a default var
-                if (! array_key_exists($reset, $this->_default_session_vars)) {
-                    // remove session var
-                    unset($this->_session_data[ $reset ]);
-                    if ($show_all_notices) {
-                        EE_Error::add_success(sprintf(__('The session variable %s was removed.', 'event_espresso'),
-                            $reset), __FILE__, __FUNCTION__, __LINE__);
-                    }
-                } else {
-                    // yeeeeeeeeerrrrrrrrrrr OUT !!!!
-                    if ($show_all_notices) {
-                        EE_Error::add_error(sprintf(__('Sorry! %s is a default session datum and can not be reset.',
-                            'event_espresso'), $reset), __FILE__, __FUNCTION__, __LINE__);
-                    }
-                    $return_value = false;
-                }
-            } elseif ($show_all_notices) {
-                // oops! that session var does not exist!
-                EE_Error::add_error(sprintf(__('The session item provided, %s, is invalid or does not exist.',
-                    'event_espresso'), $reset), __FILE__, __FUNCTION__, __LINE__);
-                $return_value = false;
-            }
-        } // end of foreach
-        return $return_value;
-    }
-
-
-
-    /**
-     *   wp_loaded
-     *
-     * @access public
-     * @throws EE_Error
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    public function wp_loaded()
-    {
-        if ($this->request->requestParamIsSet('clear_session')) {
-            $this->clear_session(__CLASS__, __FUNCTION__);
-        }
-    }
-
-
-
-    /**
-     * Used to reset the entire object (for tests).
-     *
-     * @since 4.3.0
-     * @throws EE_Error
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidArgumentException
-     */
-    public function reset_instance()
-    {
-        $this->clear_session();
-        self::$_instance = null;
-    }
-
-
-
-    public function configure_garbage_collection_filters()
-    {
-        // run old filter we had for controlling session cleanup
-        $expired_session_transient_delete_query_limit = absint(
-            apply_filters(
-                'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
-                50
-            )
-        );
-        // is there a value? or one that is different than the default 50 records?
-        if ($expired_session_transient_delete_query_limit === 0) {
-            // hook into TransientCacheStorage in case Session cleanup was turned off
-            add_filter('FHEE__TransientCacheStorage__transient_cleanup_schedule', '__return_zero');
-        } elseif ($expired_session_transient_delete_query_limit !== 50) {
-            // or use that for the new transient cleanup query limit
-            add_filter(
-                'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
-                function () use ($expired_session_transient_delete_query_limit)
-                {
-                    return $expired_session_transient_delete_query_limit;
-                }
-            );
-        }
-    }
-
-
-
-    /**
-     * @see http://stackoverflow.com/questions/10152904/unserialize-function-unserialize-error-at-offset/21389439#10152996
-     * @param $data1
-     * @return string
-     */
-    private function find_serialize_error($data1)
-    {
-        $error = '<pre>';
-        $data2 = preg_replace_callback(
-            '!s:(\d+):"(.*?)";!',
-            function ($match)
-            {
-                return ($match[1] === strlen($match[2]))
-                    ? $match[0]
-                    : 's:'
-                      . strlen($match[2])
-                      . ':"'
-                      . $match[2]
-                      . '";';
-            },
-            $data1
-        );
-        $max   = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
-        $error .= $data1 . PHP_EOL;
-        $error .= $data2 . PHP_EOL;
-        for ($i = 0; $i < $max; $i++) {
-            if (@$data1[ $i ] !== @$data2[ $i ]) {
-                $error  .= 'Difference ' . @$data1[ $i ] . ' != ' . @$data2[ $i ] . PHP_EOL;
-                $error  .= "\t-> ORD number " . ord(@$data1[ $i ]) . ' != ' . ord(@$data2[ $i ]) . PHP_EOL;
-                $error  .= "\t-> Line Number = $i" . PHP_EOL;
-                $start  = ($i - 20);
-                $start  = ($start < 0) ? 0 : $start;
-                $length = 40;
-                $point  = $max - $i;
-                if ($point < 20) {
-                    $rlength = 1;
-                    $rpoint  = -$point;
-                } else {
-                    $rpoint  = $length - 20;
-                    $rlength = 1;
-                }
-                $error .= "\t-> Section Data1  = ";
-                $error .= substr_replace(
-                    substr($data1, $start, $length),
-                    "<b style=\"color:green\">{$data1[ $i ]}</b>",
-                    $rpoint,
-                    $rlength
-                );
-                $error .= PHP_EOL;
-                $error .= "\t-> Section Data2  = ";
-                $error .= substr_replace(
-                    substr($data2, $start, $length),
-                    "<b style=\"color:red\">{$data2[ $i ]}</b>",
-                    $rpoint,
-                    $rlength
-                );
-                $error .= PHP_EOL;
-            }
-        }
-        $error .= '</pre>';
-        return $error;
-    }
-
-
-    /**
-     * Saves an  array of settings used for configuring aspects of session behaviour
-     *
-     * @param array $updated_settings
-     */
-    private function updateSessionSettings(array $updated_settings = array())
-    {
-        // add existing settings, but only if not included in incoming $updated_settings array
-        $updated_settings += get_option(EE_Session::OPTION_NAME_SETTINGS, array());
-        update_option(EE_Session::OPTION_NAME_SETTINGS, $updated_settings);
-    }
-
-
-    /**
-     * garbage_collection
-     */
-    public function garbageCollection()
-    {
-        // only perform during regular requests if last garbage collection was over an hour ago
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
-            $this->_last_gc = time();
-            $this->updateSessionSettings(array('last_gc' => $this->_last_gc));
-            /** @type WPDB $wpdb */
-            global $wpdb;
-            // filter the query limit. Set to 0 to turn off garbage collection
-            $expired_session_transient_delete_query_limit = absint(
-                apply_filters(
-                    'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
-                    50
-                )
-            );
-            // non-zero LIMIT means take out the trash
-            if ($expired_session_transient_delete_query_limit) {
-                $session_key    = str_replace('_', '\_', EE_Session::session_id_prefix);
-                $hash_check_key = str_replace('_', '\_', EE_Session::hash_check_prefix);
-                // since transient expiration timestamps are set in the future, we can compare against NOW
-                // but we only want to pick up any trash that's been around for more than a day
-                $expiration = time() - DAY_IN_SECONDS;
-                $SQL        = "
+	/**
+	 * reset_cart
+	 */
+	public function reset_cart()
+	{
+		do_action('AHEE__EE_Session__reset_cart__before_reset', $this);
+		$this->_session_data['cart'] = null;
+	}
+
+
+
+	/**
+	 * @return \EE_Cart
+	 */
+	public function cart()
+	{
+		return isset($this->_session_data['cart']) && $this->_session_data['cart'] instanceof EE_Cart
+			? $this->_session_data['cart']
+			: null;
+	}
+
+
+
+	/**
+	 * @param \EE_Checkout $checkout
+	 * @return bool
+	 */
+	public function set_checkout(EE_Checkout $checkout)
+	{
+		$this->_session_data['checkout'] = $checkout;
+		return true;
+	}
+
+
+
+	/**
+	 * reset_checkout
+	 */
+	public function reset_checkout()
+	{
+		do_action('AHEE__EE_Session__reset_checkout__before_reset', $this);
+		$this->_session_data['checkout'] = null;
+	}
+
+
+
+	/**
+	 * @return \EE_Checkout
+	 */
+	public function checkout()
+	{
+		return isset($this->_session_data['checkout']) && $this->_session_data['checkout'] instanceof EE_Checkout
+			? $this->_session_data['checkout']
+			: null;
+	}
+
+
+
+	/**
+	 * @param \EE_Transaction $transaction
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function set_transaction(EE_Transaction $transaction)
+	{
+		// first remove the session from the transaction before we save the transaction in the session
+		$transaction->set_txn_session_data(null);
+		$this->_session_data['transaction'] = $transaction;
+		return true;
+	}
+
+
+
+	/**
+	 * reset_transaction
+	 */
+	public function reset_transaction()
+	{
+		do_action('AHEE__EE_Session__reset_transaction__before_reset', $this);
+		$this->_session_data['transaction'] = null;
+	}
+
+
+
+	/**
+	 * @return \EE_Transaction
+	 */
+	public function transaction()
+	{
+		return isset($this->_session_data['transaction'])
+			   && $this->_session_data['transaction'] instanceof EE_Transaction
+			? $this->_session_data['transaction']
+			: null;
+	}
+
+
+
+	/**
+	 * retrieve session data
+	 *
+	 * @access    public
+	 * @param null $key
+	 * @param bool $reset_cache
+	 * @return    array
+	 */
+	public function get_session_data($key = null, $reset_cache = false)
+	{
+		if ($reset_cache) {
+			$this->reset_cart();
+			$this->reset_checkout();
+			$this->reset_transaction();
+		}
+		if (! empty($key)) {
+			return isset($this->_session_data[ $key ]) ? $this->_session_data[ $key ] : null;
+		}
+		return $this->_session_data;
+	}
+
+
+
+	/**
+	 * set session data
+	 *
+	 * @access    public
+	 * @param    array $data
+	 * @return    TRUE on success, FALSE on fail
+	 */
+	public function set_session_data($data)
+	{
+
+		// nothing ??? bad data ??? go home!
+		if (empty($data) || ! is_array($data)) {
+			EE_Error::add_error(__('No session data or invalid session data was provided.', 'event_espresso'), __FILE__,
+				__FUNCTION__, __LINE__);
+			return false;
+		}
+		foreach ($data as $key => $value) {
+			if (isset($this->_default_session_vars[ $key ])) {
+				EE_Error::add_error(sprintf(__('Sorry! %s is a default session datum and can not be reset.',
+					'event_espresso'), $key), __FILE__, __FUNCTION__, __LINE__);
+				return false;
+			}
+			$this->_session_data[ $key ] = $value;
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * @initiate session
+	 * @access   private
+	 * @return TRUE on success, FALSE on fail
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidSessionDataException
+	 */
+	private function _espresso_session()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		// check that session has started
+		if (session_id() === '') {
+			//starts a new session if one doesn't already exist, or re-initiates an existing one
+			session_start();
+		}
+		// get our modified session ID
+		$this->_sid = $this->_generate_session_id();
+		// and the visitors IP
+		$this->_ip_address = $this->request->ipAddress();
+		// set the "user agent"
+		$this->_user_agent = $this->request->userAgent();
+		// now let's retrieve what's in the db
+		$session_data = $this->_retrieve_session_data();
+		if (! empty($session_data)) {
+			// get the current time in UTC
+			$this->_time = $this->_time !== null ? $this->_time : time();
+			// and reset the session expiration
+			$this->_expiration = isset($session_data['expiration'])
+				? $session_data['expiration']
+				: $this->_time + $this->session_lifespan->inSeconds();
+		} else {
+			// set initial site access time and the session expiration
+			$this->_set_init_access_and_expiration();
+			// set referer
+			$this->_session_data['pages_visited'][ $this->_session_data['init_access'] ] = isset($_SERVER['HTTP_REFERER'])
+				? esc_attr($_SERVER['HTTP_REFERER'])
+				: '';
+			// no previous session = go back and create one (on top of the data above)
+			return false;
+		}
+		// now the user agent
+		if ($session_data['user_agent'] !== $this->_user_agent) {
+			return false;
+		}
+		// wait a minute... how old are you?
+		if ($this->_time > $this->_expiration) {
+			// yer too old fer me!
+			$this->_expired = true;
+			// wipe out everything that isn't a default session datum
+			$this->clear_session(__CLASS__, __FUNCTION__);
+		}
+		// make event espresso session data available to plugin
+		$this->_session_data = array_merge($this->_session_data, $session_data);
+		return true;
+	}
+
+
+
+	/**
+	 * _get_session_data
+	 * Retrieves the session data, and attempts to correct any encoding issues that can occur due to improperly setup
+	 * databases
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidSessionDataException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _retrieve_session_data()
+	{
+		$ssn_key = EE_Session::session_id_prefix . $this->_sid;
+		try {
+			// we're using WP's Transient API to store session data using the PHP session ID as the option name
+			$session_data = $this->cache_storage->get($ssn_key, false);
+			if (empty($session_data)) {
+				return array();
+			}
+			if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
+				$hash_check = $this->cache_storage->get(
+					EE_Session::hash_check_prefix . $this->_sid,
+					false
+				);
+				if ($hash_check && $hash_check !== md5($session_data)) {
+					EE_Error::add_error(
+						sprintf(
+							__(
+								'The stored data for session %1$s failed to pass a hash check and therefore appears to be invalid.',
+								'event_espresso'
+							),
+							EE_Session::session_id_prefix . $this->_sid
+						),
+						__FILE__, __FUNCTION__, __LINE__
+					);
+				}
+			}
+		} catch (Exception $e) {
+			// let's just eat that error for now and attempt to correct any corrupted data
+			global $wpdb;
+			$row          = $wpdb->get_row(
+				$wpdb->prepare(
+					"SELECT option_value FROM {$wpdb->options} WHERE option_name = %s LIMIT 1",
+					'_transient_' . $ssn_key
+				)
+			);
+			$session_data = is_object($row) ? $row->option_value : null;
+			if ($session_data) {
+				$session_data = preg_replace_callback(
+					'!s:(d+):"(.*?)";!',
+					function ($match)
+					{
+						return $match[1] === strlen($match[2])
+							? $match[0]
+							: 's:' . strlen($match[2]) . ':"' . $match[2] . '";';
+					},
+					$session_data
+				);
+			}
+			$session_data = maybe_unserialize($session_data);
+		}
+		// in case the data is encoded... try to decode it
+		$session_data = $this->encryption instanceof EE_Encryption
+			? $this->encryption->base64_string_decode($session_data)
+			: $session_data;
+		if (! is_array($session_data)) {
+			try {
+				$session_data = maybe_unserialize($session_data);
+			} catch (Exception $e) {
+				$msg = esc_html__(
+					'An error occurred while attempting to unserialize the session data.',
+					'event_espresso'
+				);
+				$msg .= WP_DEBUG
+					? '<br><pre>'
+					  . print_r($session_data, true)
+					  . '</pre><br>'
+					  . $this->find_serialize_error($session_data)
+					: '';
+				$this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+				throw new InvalidSessionDataException($msg, 0, $e);
+			}
+		}
+		// just a check to make sure the session array is indeed an array
+		if (! is_array($session_data)) {
+			// no?!?! then something is wrong
+			$msg = esc_html__(
+				'The session data is missing, invalid, or corrupted.',
+				'event_espresso'
+			);
+			$msg .= WP_DEBUG
+				? '<br><pre>' . print_r($session_data, true) . '</pre><br>' . $this->find_serialize_error($session_data)
+				: '';
+			$this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+			throw new InvalidSessionDataException($msg);
+		}
+		if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {
+			$session_data['transaction'] = EEM_Transaction::instance()->get_one_by_ID(
+				$session_data['transaction']
+			);
+		}
+		return $session_data;
+	}
+
+
+
+	/**
+	 * _generate_session_id
+	 * Retrieves the PHP session id either directly from the PHP session,
+	 * or from the $_REQUEST array if it was passed in from an AJAX request.
+	 * The session id is then salted and hashed (mmm sounds tasty)
+	 * so that it can be safely used as a $_REQUEST param
+	 *
+	 * @return string
+	 */
+	protected function _generate_session_id()
+	{
+		// check if the SID was passed explicitly, otherwise get from session, then add salt and hash it to reduce length
+		if (isset($_REQUEST['EESID'])) {
+			$session_id = sanitize_text_field($_REQUEST['EESID']);
+		} else {
+			$session_id = md5(session_id() . get_current_blog_id() . $this->_get_sid_salt());
+		}
+		return apply_filters('FHEE__EE_Session___generate_session_id__session_id', $session_id);
+	}
+
+
+
+	/**
+	 * _get_sid_salt
+	 *
+	 * @return string
+	 */
+	protected function _get_sid_salt()
+	{
+		// was session id salt already saved to db ?
+		if (empty($this->_sid_salt)) {
+			// no?  then maybe use WP defined constant
+			if (defined('AUTH_SALT')) {
+				$this->_sid_salt = AUTH_SALT;
+			}
+			// if salt doesn't exist or is too short
+			if (strlen($this->_sid_salt) < 32) {
+				// create a new one
+				$this->_sid_salt = wp_generate_password(64);
+			}
+			// and save it as a permanent session setting
+			$this->updateSessionSettings(array('sid_salt' => $this->_sid_salt));
+		}
+		return $this->_sid_salt;
+	}
+
+
+
+	/**
+	 * _set_init_access_and_expiration
+	 *
+	 * @return void
+	 */
+	protected function _set_init_access_and_expiration()
+	{
+		$this->_time       = time();
+		$this->_expiration = $this->_time + $this->session_lifespan->inSeconds();
+		// set initial site access time
+		$this->_session_data['init_access'] = $this->_time;
+		// and the session expiration
+		$this->_session_data['expiration'] = $this->_expiration;
+	}
+
+
+
+	/**
+	 * @update session data  prior to saving to the db
+	 * @access public
+	 * @param bool $new_session
+	 * @return TRUE on success, FALSE on fail
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function update($new_session = false)
+	{
+		$this->_session_data = $this->_session_data !== null
+							   && is_array($this->_session_data)
+							   && isset($this->_session_data['id'])
+			? $this->_session_data
+			: array();
+		if (empty($this->_session_data)) {
+			$this->_set_defaults();
+		}
+		$session_data = array();
+		foreach ($this->_session_data as $key => $value) {
+
+			switch ($key) {
+
+				case 'id' :
+					// session ID
+					$session_data['id'] = $this->_sid;
+					break;
+				case 'ip_address' :
+					// visitor ip address
+					$session_data['ip_address'] = $this->request->ipAddress();
+					break;
+				case 'user_agent' :
+					// visitor user_agent
+					$session_data['user_agent'] = $this->_user_agent;
+					break;
+				case 'init_access' :
+					$session_data['init_access'] = absint($value);
+					break;
+				case 'last_access' :
+					// current access time
+					$session_data['last_access'] = $this->_time;
+					break;
+				case 'expiration' :
+					// when the session expires
+					$session_data['expiration'] = ! empty($this->_expiration)
+						? $this->_expiration
+						: $session_data['init_access'] + $this->session_lifespan->inSeconds();
+					break;
+				case 'user_id' :
+					// current user if logged in
+					$session_data['user_id'] = $this->_wp_user_id();
+					break;
+				case 'pages_visited' :
+					$page_visit = $this->_get_page_visit();
+					if ($page_visit) {
+						// set pages visited where the first will be the http referrer
+						$this->_session_data['pages_visited'][ $this->_time ] = $page_visit;
+						// we'll only save the last 10 page visits.
+						$session_data['pages_visited'] = array_slice($this->_session_data['pages_visited'], -10);
+					}
+					break;
+				default :
+					// carry any other data over
+					$session_data[ $key ] = $this->_session_data[ $key ];
+			}
+		}
+		$this->_session_data = $session_data;
+		// creating a new session does not require saving to the db just yet
+		if (! $new_session) {
+			// ready? let's save
+			if ($this->_save_session_to_db()) {
+				return true;
+			}
+			return false;
+		}
+		// meh, why not?
+		return true;
+	}
+
+
+
+	/**
+	 * @create session data array
+	 * @access public
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _create_espresso_session()
+	{
+		do_action('AHEE_log', __CLASS__, __FUNCTION__, '');
+		// use the update function for now with $new_session arg set to TRUE
+		return $this->update(true) ? true : false;
+	}
+
+
+
+	/**
+	 * _save_session_to_db
+	 *
+	 * @param bool $clear_session
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	private function _save_session_to_db($clear_session = false)
+	{
+		// don't save sessions for crawlers
+		// and unless we're deleting the session data, don't save anything if there isn't a cart
+		if ($this->request->isBot() || (! $clear_session && ! $this->cart() instanceof EE_Cart)) {
+			return false;
+		}
+		$transaction = $this->transaction();
+		if ($transaction instanceof EE_Transaction) {
+			if (! $transaction->ID()) {
+				$transaction->save();
+			}
+			$this->_session_data['transaction'] = $transaction->ID();
+		}
+		// then serialize all of our session data
+		$session_data = serialize($this->_session_data);
+		// do we need to also encode it to avoid corrupted data when saved to the db?
+		$session_data = $this->_use_encryption
+			? $this->encryption->base64_string_encode($session_data)
+			: $session_data;
+		// maybe save hash check
+		if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
+			$this->cache_storage->add(
+				EE_Session::hash_check_prefix . $this->_sid,
+				md5($session_data),
+				$this->session_lifespan->inSeconds()
+			);
+		}
+		// we're using the Transient API for storing session data,
+		return $this->cache_storage->add(
+			EE_Session::session_id_prefix . $this->_sid,
+			$session_data,
+			$this->session_lifespan->inSeconds()
+		);
+	}
+
+
+	/**
+	 * @get    the full page request the visitor is accessing
+	 * @access public
+	 * @return string
+	 */
+	public function _get_page_visit()
+	{
+		$page_visit = home_url('/') . 'wp-admin/admin-ajax.php';
+		// check for request url
+		if (isset($_SERVER['REQUEST_URI'])) {
+			$http_host   = '';
+			$page_id     = '?';
+			$e_reg       = '';
+			$request_uri = esc_url($_SERVER['REQUEST_URI']);
+			$ru_bits     = explode('?', $request_uri);
+			$request_uri = $ru_bits[0];
+			// check for and grab host as well
+			if (isset($_SERVER['HTTP_HOST'])) {
+				$http_host = esc_url($_SERVER['HTTP_HOST']);
+			}
+			// check for page_id in SERVER REQUEST
+			if (isset($_REQUEST['page_id'])) {
+				// rebuild $e_reg without any of the extra parameters
+				$page_id = '?page_id=' . esc_attr($_REQUEST['page_id']) . '&amp;';
+			}
+			// check for $e_reg in SERVER REQUEST
+			if (isset($_REQUEST['ee'])) {
+				// rebuild $e_reg without any of the extra parameters
+				$e_reg = 'ee=' . esc_attr($_REQUEST['ee']);
+			}
+			$page_visit = rtrim($http_host . $request_uri . $page_id . $e_reg, '?');
+		}
+		return $page_visit !== home_url('/wp-admin/admin-ajax.php') ? $page_visit : '';
+	}
+
+
+
+	/**
+	 * @the    current wp user id
+	 * @access public
+	 * @return int
+	 */
+	public function _wp_user_id()
+	{
+		// if I need to explain the following lines of code, then you shouldn't be looking at this!
+		$this->_wp_user_id = get_current_user_id();
+		return $this->_wp_user_id;
+	}
+
+
+
+	/**
+	 * Clear EE_Session data
+	 *
+	 * @access public
+	 * @param string $class
+	 * @param string $function
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function clear_session($class = '', $function = '')
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : ' . $class . '::' . $function . '()');
+		$this->reset_cart();
+		$this->reset_checkout();
+		$this->reset_transaction();
+		// wipe out everything that isn't a default session datum
+		$this->reset_data(array_keys($this->_session_data));
+		// reset initial site access time and the session expiration
+		$this->_set_init_access_and_expiration();
+		$this->_save_session_to_db(true);
+	}
+
+
+
+	/**
+	 * @resets all non-default session vars
+	 * @access public
+	 * @param array|mixed $data_to_reset
+	 * @param bool        $show_all_notices
+	 * @return TRUE on success, FALSE on fail
+	 */
+	public function reset_data($data_to_reset = array(), $show_all_notices = false)
+	{
+		// if $data_to_reset is not in an array, then put it in one
+		if (! is_array($data_to_reset)) {
+			$data_to_reset = array($data_to_reset);
+		}
+		// nothing ??? go home!
+		if (empty($data_to_reset)) {
+			EE_Error::add_error(__('No session data could be reset, because no session var name was provided.',
+				'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		$return_value = true;
+		// since $data_to_reset is an array, cycle through the values
+		foreach ($data_to_reset as $reset) {
+
+			// first check to make sure it is a valid session var
+			if (isset($this->_session_data[ $reset ])) {
+				// then check to make sure it is not a default var
+				if (! array_key_exists($reset, $this->_default_session_vars)) {
+					// remove session var
+					unset($this->_session_data[ $reset ]);
+					if ($show_all_notices) {
+						EE_Error::add_success(sprintf(__('The session variable %s was removed.', 'event_espresso'),
+							$reset), __FILE__, __FUNCTION__, __LINE__);
+					}
+				} else {
+					// yeeeeeeeeerrrrrrrrrrr OUT !!!!
+					if ($show_all_notices) {
+						EE_Error::add_error(sprintf(__('Sorry! %s is a default session datum and can not be reset.',
+							'event_espresso'), $reset), __FILE__, __FUNCTION__, __LINE__);
+					}
+					$return_value = false;
+				}
+			} elseif ($show_all_notices) {
+				// oops! that session var does not exist!
+				EE_Error::add_error(sprintf(__('The session item provided, %s, is invalid or does not exist.',
+					'event_espresso'), $reset), __FILE__, __FUNCTION__, __LINE__);
+				$return_value = false;
+			}
+		} // end of foreach
+		return $return_value;
+	}
+
+
+
+	/**
+	 *   wp_loaded
+	 *
+	 * @access public
+	 * @throws EE_Error
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	public function wp_loaded()
+	{
+		if ($this->request->requestParamIsSet('clear_session')) {
+			$this->clear_session(__CLASS__, __FUNCTION__);
+		}
+	}
+
+
+
+	/**
+	 * Used to reset the entire object (for tests).
+	 *
+	 * @since 4.3.0
+	 * @throws EE_Error
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidArgumentException
+	 */
+	public function reset_instance()
+	{
+		$this->clear_session();
+		self::$_instance = null;
+	}
+
+
+
+	public function configure_garbage_collection_filters()
+	{
+		// run old filter we had for controlling session cleanup
+		$expired_session_transient_delete_query_limit = absint(
+			apply_filters(
+				'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
+				50
+			)
+		);
+		// is there a value? or one that is different than the default 50 records?
+		if ($expired_session_transient_delete_query_limit === 0) {
+			// hook into TransientCacheStorage in case Session cleanup was turned off
+			add_filter('FHEE__TransientCacheStorage__transient_cleanup_schedule', '__return_zero');
+		} elseif ($expired_session_transient_delete_query_limit !== 50) {
+			// or use that for the new transient cleanup query limit
+			add_filter(
+				'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
+				function () use ($expired_session_transient_delete_query_limit)
+				{
+					return $expired_session_transient_delete_query_limit;
+				}
+			);
+		}
+	}
+
+
+
+	/**
+	 * @see http://stackoverflow.com/questions/10152904/unserialize-function-unserialize-error-at-offset/21389439#10152996
+	 * @param $data1
+	 * @return string
+	 */
+	private function find_serialize_error($data1)
+	{
+		$error = '<pre>';
+		$data2 = preg_replace_callback(
+			'!s:(\d+):"(.*?)";!',
+			function ($match)
+			{
+				return ($match[1] === strlen($match[2]))
+					? $match[0]
+					: 's:'
+					  . strlen($match[2])
+					  . ':"'
+					  . $match[2]
+					  . '";';
+			},
+			$data1
+		);
+		$max   = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
+		$error .= $data1 . PHP_EOL;
+		$error .= $data2 . PHP_EOL;
+		for ($i = 0; $i < $max; $i++) {
+			if (@$data1[ $i ] !== @$data2[ $i ]) {
+				$error  .= 'Difference ' . @$data1[ $i ] . ' != ' . @$data2[ $i ] . PHP_EOL;
+				$error  .= "\t-> ORD number " . ord(@$data1[ $i ]) . ' != ' . ord(@$data2[ $i ]) . PHP_EOL;
+				$error  .= "\t-> Line Number = $i" . PHP_EOL;
+				$start  = ($i - 20);
+				$start  = ($start < 0) ? 0 : $start;
+				$length = 40;
+				$point  = $max - $i;
+				if ($point < 20) {
+					$rlength = 1;
+					$rpoint  = -$point;
+				} else {
+					$rpoint  = $length - 20;
+					$rlength = 1;
+				}
+				$error .= "\t-> Section Data1  = ";
+				$error .= substr_replace(
+					substr($data1, $start, $length),
+					"<b style=\"color:green\">{$data1[ $i ]}</b>",
+					$rpoint,
+					$rlength
+				);
+				$error .= PHP_EOL;
+				$error .= "\t-> Section Data2  = ";
+				$error .= substr_replace(
+					substr($data2, $start, $length),
+					"<b style=\"color:red\">{$data2[ $i ]}</b>",
+					$rpoint,
+					$rlength
+				);
+				$error .= PHP_EOL;
+			}
+		}
+		$error .= '</pre>';
+		return $error;
+	}
+
+
+	/**
+	 * Saves an  array of settings used for configuring aspects of session behaviour
+	 *
+	 * @param array $updated_settings
+	 */
+	private function updateSessionSettings(array $updated_settings = array())
+	{
+		// add existing settings, but only if not included in incoming $updated_settings array
+		$updated_settings += get_option(EE_Session::OPTION_NAME_SETTINGS, array());
+		update_option(EE_Session::OPTION_NAME_SETTINGS, $updated_settings);
+	}
+
+
+	/**
+	 * garbage_collection
+	 */
+	public function garbageCollection()
+	{
+		// only perform during regular requests if last garbage collection was over an hour ago
+		if (! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
+			$this->_last_gc = time();
+			$this->updateSessionSettings(array('last_gc' => $this->_last_gc));
+			/** @type WPDB $wpdb */
+			global $wpdb;
+			// filter the query limit. Set to 0 to turn off garbage collection
+			$expired_session_transient_delete_query_limit = absint(
+				apply_filters(
+					'FHEE__EE_Session__garbage_collection___expired_session_transient_delete_query_limit',
+					50
+				)
+			);
+			// non-zero LIMIT means take out the trash
+			if ($expired_session_transient_delete_query_limit) {
+				$session_key    = str_replace('_', '\_', EE_Session::session_id_prefix);
+				$hash_check_key = str_replace('_', '\_', EE_Session::hash_check_prefix);
+				// since transient expiration timestamps are set in the future, we can compare against NOW
+				// but we only want to pick up any trash that's been around for more than a day
+				$expiration = time() - DAY_IN_SECONDS;
+				$SQL        = "
                     SELECT option_name
                     FROM {$wpdb->options}
                     WHERE
@@ -1204,19 +1204,19 @@ 
                     AND option_value < {$expiration}
                     LIMIT {$expired_session_transient_delete_query_limit}
                 ";
-                // produces something like:
-                // SELECT option_name FROM wp_options
-                // WHERE ( option_name LIKE '\_transient\_timeout\_ee\_ssn\_%'
-                // OR option_name LIKE '\_transient\_timeout\_ee\_shc\_%' )
-                // AND option_value < 1508368198 LIMIT 50
-                $expired_sessions = $wpdb->get_col($SQL);
-                // valid results?
-                if (! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
-                    $this->cache_storage->deleteMany($expired_sessions, true);
-                }
-            }
-        }
-    }
+				// produces something like:
+				// SELECT option_name FROM wp_options
+				// WHERE ( option_name LIKE '\_transient\_timeout\_ee\_ssn\_%'
+				// OR option_name LIKE '\_transient\_timeout\_ee\_shc\_%' )
+				// AND option_value < 1508368198 LIMIT 50
+				$expired_sessions = $wpdb->get_col($SQL);
+				// valid results?
+				if (! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
+					$this->cache_storage->deleteMany($expired_sessions, true);
+				}
+			}
+		}
+	}
 
 
 

Spacing +57 added lines, -57 removed lines

@@ -174,7 +174,7 @@ 
         // check if class object is instantiated
         // session loading is turned ON by default, but prior to the init hook, can be turned back OFF via:
         // add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
+        if ( ! self::$_instance instanceof EE_Session && apply_filters('FHEE_load_EE_Session', true)) {
             self::$_instance = new self(
                 $cache_storage,
                 $lifespan,
@@ -204,22 +204,22 @@ 
         EE_Encryption $encryption = null
     ) {
         // session loading is turned ON by default, but prior to the init hook, can be turned back OFF via: add_filter( 'FHEE_load_EE_Session', '__return_false' );
-        if (! apply_filters('FHEE_load_EE_Session', true)) {
+        if ( ! apply_filters('FHEE_load_EE_Session', true)) {
             return;
         }
         $this->session_lifespan = $lifespan;
         $this->request          = $request;
         do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        if (! defined('ESPRESSO_SESSION')) {
+        if ( ! defined('ESPRESSO_SESSION')) {
             define('ESPRESSO_SESSION', true);
         }
         // retrieve session options from db
         $session_settings = (array) get_option(EE_Session::OPTION_NAME_SETTINGS, array());
-        if (! empty($session_settings)) {
+        if ( ! empty($session_settings)) {
             // cycle though existing session options
             foreach ($session_settings as $var_name => $session_setting) {
                 // set values for class properties
-                $var_name          = '_' . $var_name;
+                $var_name          = '_'.$var_name;
                 $this->{$var_name} = $session_setting;
             }
         }
@@ -257,7 +257,7 @@ 
     public function open_session()
     {
         // check for existing session and retrieve it from db
-        if (! $this->_espresso_session()) {
+        if ( ! $this->_espresso_session()) {
             // or just start a new one
             $this->_create_espresso_session();
         }
@@ -309,7 +309,7 @@ 
      */
     public function extend_expiration($time = 0)
     {
-        $time              = $time ? $time : $this->extension();
+        $time = $time ? $time : $this->extension();
         $this->_expiration += absint($time);
     }
 
@@ -336,9 +336,9 @@ 
         // set some defaults
         foreach ($this->_default_session_vars as $key => $default_var) {
             if (is_array($default_var)) {
-                $this->_session_data[ $key ] = array();
+                $this->_session_data[$key] = array();
             } else {
-                $this->_session_data[ $key ] = '';
+                $this->_session_data[$key] = '';
             }
         }
     }
@@ -481,8 +481,8 @@ 
             $this->reset_checkout();
             $this->reset_transaction();
         }
-        if (! empty($key)) {
-            return isset($this->_session_data[ $key ]) ? $this->_session_data[ $key ] : null;
+        if ( ! empty($key)) {
+            return isset($this->_session_data[$key]) ? $this->_session_data[$key] : null;
         }
         return $this->_session_data;
     }
@@ -506,12 +506,12 @@ 
             return false;
         }
         foreach ($data as $key => $value) {
-            if (isset($this->_default_session_vars[ $key ])) {
+            if (isset($this->_default_session_vars[$key])) {
                 EE_Error::add_error(sprintf(__('Sorry! %s is a default session datum and can not be reset.',
                     'event_espresso'), $key), __FILE__, __FUNCTION__, __LINE__);
                 return false;
             }
-            $this->_session_data[ $key ] = $value;
+            $this->_session_data[$key] = $value;
         }
         return true;
     }
@@ -544,7 +544,7 @@ 
         $this->_user_agent = $this->request->userAgent();
         // now let's retrieve what's in the db
         $session_data = $this->_retrieve_session_data();
-        if (! empty($session_data)) {
+        if ( ! empty($session_data)) {
             // get the current time in UTC
             $this->_time = $this->_time !== null ? $this->_time : time();
             // and reset the session expiration
@@ -555,7 +555,7 @@ 
             // set initial site access time and the session expiration
             $this->_set_init_access_and_expiration();
             // set referer
-            $this->_session_data['pages_visited'][ $this->_session_data['init_access'] ] = isset($_SERVER['HTTP_REFERER'])
+            $this->_session_data['pages_visited'][$this->_session_data['init_access']] = isset($_SERVER['HTTP_REFERER'])
                 ? esc_attr($_SERVER['HTTP_REFERER'])
                 : '';
             // no previous session = go back and create one (on top of the data above)
@@ -593,7 +593,7 @@ 
      */
     protected function _retrieve_session_data()
     {
-        $ssn_key = EE_Session::session_id_prefix . $this->_sid;
+        $ssn_key = EE_Session::session_id_prefix.$this->_sid;
         try {
             // we're using WP's Transient API to store session data using the PHP session ID as the option name
             $session_data = $this->cache_storage->get($ssn_key, false);
@@ -602,7 +602,7 @@ 
             }
             if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
                 $hash_check = $this->cache_storage->get(
-                    EE_Session::hash_check_prefix . $this->_sid,
+                    EE_Session::hash_check_prefix.$this->_sid,
                     false
                 );
                 if ($hash_check && $hash_check !== md5($session_data)) {
@@ -612,7 +612,7 @@ 
                                 'The stored data for session %1$s failed to pass a hash check and therefore appears to be invalid.',
                                 'event_espresso'
                             ),
-                            EE_Session::session_id_prefix . $this->_sid
+                            EE_Session::session_id_prefix.$this->_sid
                         ),
                         __FILE__, __FUNCTION__, __LINE__
                     );
@@ -621,21 +621,21 @@ 
         } catch (Exception $e) {
             // let's just eat that error for now and attempt to correct any corrupted data
             global $wpdb;
-            $row          = $wpdb->get_row(
+            $row = $wpdb->get_row(
                 $wpdb->prepare(
                     "SELECT option_value FROM {$wpdb->options} WHERE option_name = %s LIMIT 1",
-                    '_transient_' . $ssn_key
+                    '_transient_'.$ssn_key
                 )
             );
             $session_data = is_object($row) ? $row->option_value : null;
             if ($session_data) {
                 $session_data = preg_replace_callback(
                     '!s:(d+):"(.*?)";!',
-                    function ($match)
+                    function($match)
                     {
                         return $match[1] === strlen($match[2])
                             ? $match[0]
-                            : 's:' . strlen($match[2]) . ':"' . $match[2] . '";';
+                            : 's:'.strlen($match[2]).':"'.$match[2].'";';
                     },
                     $session_data
                 );
@@ -646,7 +646,7 @@ 
         $session_data = $this->encryption instanceof EE_Encryption
             ? $this->encryption->base64_string_decode($session_data)
             : $session_data;
-        if (! is_array($session_data)) {
+        if ( ! is_array($session_data)) {
             try {
                 $session_data = maybe_unserialize($session_data);
             } catch (Exception $e) {
@@ -660,21 +660,21 @@ 
                       . '</pre><br>'
                       . $this->find_serialize_error($session_data)
                     : '';
-                $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+                $this->cache_storage->delete(EE_Session::session_id_prefix.$this->_sid);
                 throw new InvalidSessionDataException($msg, 0, $e);
             }
         }
         // just a check to make sure the session array is indeed an array
-        if (! is_array($session_data)) {
+        if ( ! is_array($session_data)) {
             // no?!?! then something is wrong
             $msg = esc_html__(
                 'The session data is missing, invalid, or corrupted.',
                 'event_espresso'
             );
             $msg .= WP_DEBUG
-                ? '<br><pre>' . print_r($session_data, true) . '</pre><br>' . $this->find_serialize_error($session_data)
+                ? '<br><pre>'.print_r($session_data, true).'</pre><br>'.$this->find_serialize_error($session_data)
                 : '';
-            $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);
+            $this->cache_storage->delete(EE_Session::session_id_prefix.$this->_sid);
             throw new InvalidSessionDataException($msg);
         }
         if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {
@@ -702,7 +702,7 @@ 
         if (isset($_REQUEST['EESID'])) {
             $session_id = sanitize_text_field($_REQUEST['EESID']);
         } else {
-            $session_id = md5(session_id() . get_current_blog_id() . $this->_get_sid_salt());
+            $session_id = md5(session_id().get_current_blog_id().$this->_get_sid_salt());
         }
         return apply_filters('FHEE__EE_Session___generate_session_id__session_id', $session_id);
     }
@@ -810,19 +810,19 @@ 
                     $page_visit = $this->_get_page_visit();
                     if ($page_visit) {
                         // set pages visited where the first will be the http referrer
-                        $this->_session_data['pages_visited'][ $this->_time ] = $page_visit;
+                        $this->_session_data['pages_visited'][$this->_time] = $page_visit;
                         // we'll only save the last 10 page visits.
                         $session_data['pages_visited'] = array_slice($this->_session_data['pages_visited'], -10);
                     }
                     break;
                 default :
                     // carry any other data over
-                    $session_data[ $key ] = $this->_session_data[ $key ];
+                    $session_data[$key] = $this->_session_data[$key];
             }
         }
         $this->_session_data = $session_data;
         // creating a new session does not require saving to the db just yet
-        if (! $new_session) {
+        if ( ! $new_session) {
             // ready? let's save
             if ($this->_save_session_to_db()) {
                 return true;
@@ -867,12 +867,12 @@ 
     {
         // don't save sessions for crawlers
         // and unless we're deleting the session data, don't save anything if there isn't a cart
-        if ($this->request->isBot() || (! $clear_session && ! $this->cart() instanceof EE_Cart)) {
+        if ($this->request->isBot() || ( ! $clear_session && ! $this->cart() instanceof EE_Cart)) {
             return false;
         }
         $transaction = $this->transaction();
         if ($transaction instanceof EE_Transaction) {
-            if (! $transaction->ID()) {
+            if ( ! $transaction->ID()) {
                 $transaction->save();
             }
             $this->_session_data['transaction'] = $transaction->ID();
@@ -886,14 +886,14 @@ 
         // maybe save hash check
         if (apply_filters('FHEE__EE_Session___perform_session_id_hash_check', WP_DEBUG)) {
             $this->cache_storage->add(
-                EE_Session::hash_check_prefix . $this->_sid,
+                EE_Session::hash_check_prefix.$this->_sid,
                 md5($session_data),
                 $this->session_lifespan->inSeconds()
             );
         }
         // we're using the Transient API for storing session data,
         return $this->cache_storage->add(
-            EE_Session::session_id_prefix . $this->_sid,
+            EE_Session::session_id_prefix.$this->_sid,
             $session_data,
             $this->session_lifespan->inSeconds()
         );
@@ -907,7 +907,7 @@ 
      */
     public function _get_page_visit()
     {
-        $page_visit = home_url('/') . 'wp-admin/admin-ajax.php';
+        $page_visit = home_url('/').'wp-admin/admin-ajax.php';
         // check for request url
         if (isset($_SERVER['REQUEST_URI'])) {
             $http_host   = '';
@@ -923,14 +923,14 @@ 
             // check for page_id in SERVER REQUEST
             if (isset($_REQUEST['page_id'])) {
                 // rebuild $e_reg without any of the extra parameters
-                $page_id = '?page_id=' . esc_attr($_REQUEST['page_id']) . '&amp;';
+                $page_id = '?page_id='.esc_attr($_REQUEST['page_id']).'&amp;';
             }
             // check for $e_reg in SERVER REQUEST
             if (isset($_REQUEST['ee'])) {
                 // rebuild $e_reg without any of the extra parameters
-                $e_reg = 'ee=' . esc_attr($_REQUEST['ee']);
+                $e_reg = 'ee='.esc_attr($_REQUEST['ee']);
             }
-            $page_visit = rtrim($http_host . $request_uri . $page_id . $e_reg, '?');
+            $page_visit = rtrim($http_host.$request_uri.$page_id.$e_reg, '?');
         }
         return $page_visit !== home_url('/wp-admin/admin-ajax.php') ? $page_visit : '';
     }
@@ -965,7 +965,7 @@ 
      */
     public function clear_session($class = '', $function = '')
     {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : ' . $class . '::' . $function . '()');
+        do_action('AHEE_log', __FILE__, __FUNCTION__, 'session cleared by : '.$class.'::'.$function.'()');
         $this->reset_cart();
         $this->reset_checkout();
         $this->reset_transaction();
@@ -988,7 +988,7 @@ 
     public function reset_data($data_to_reset = array(), $show_all_notices = false)
     {
         // if $data_to_reset is not in an array, then put it in one
-        if (! is_array($data_to_reset)) {
+        if ( ! is_array($data_to_reset)) {
             $data_to_reset = array($data_to_reset);
         }
         // nothing ??? go home!
@@ -1002,11 +1002,11 @@ 
         foreach ($data_to_reset as $reset) {
 
             // first check to make sure it is a valid session var
-            if (isset($this->_session_data[ $reset ])) {
+            if (isset($this->_session_data[$reset])) {
                 // then check to make sure it is not a default var
-                if (! array_key_exists($reset, $this->_default_session_vars)) {
+                if ( ! array_key_exists($reset, $this->_default_session_vars)) {
                     // remove session var
-                    unset($this->_session_data[ $reset ]);
+                    unset($this->_session_data[$reset]);
                     if ($show_all_notices) {
                         EE_Error::add_success(sprintf(__('The session variable %s was removed.', 'event_espresso'),
                             $reset), __FILE__, __FUNCTION__, __LINE__);
@@ -1083,7 +1083,7 @@ 
             // or use that for the new transient cleanup query limit
             add_filter(
                 'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
-                function () use ($expired_session_transient_delete_query_limit)
+                function() use ($expired_session_transient_delete_query_limit)
                 {
                     return $expired_session_transient_delete_query_limit;
                 }
@@ -1103,7 +1103,7 @@ 
         $error = '<pre>';
         $data2 = preg_replace_callback(
             '!s:(\d+):"(.*?)";!',
-            function ($match)
+            function($match)
             {
                 return ($match[1] === strlen($match[2]))
                     ? $match[0]
@@ -1115,14 +1115,14 @@ 
             },
             $data1
         );
-        $max   = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
-        $error .= $data1 . PHP_EOL;
-        $error .= $data2 . PHP_EOL;
+        $max = (strlen($data1) > strlen($data2)) ? strlen($data1) : strlen($data2);
+        $error .= $data1.PHP_EOL;
+        $error .= $data2.PHP_EOL;
         for ($i = 0; $i < $max; $i++) {
-            if (@$data1[ $i ] !== @$data2[ $i ]) {
-                $error  .= 'Difference ' . @$data1[ $i ] . ' != ' . @$data2[ $i ] . PHP_EOL;
-                $error  .= "\t-> ORD number " . ord(@$data1[ $i ]) . ' != ' . ord(@$data2[ $i ]) . PHP_EOL;
-                $error  .= "\t-> Line Number = $i" . PHP_EOL;
+            if (@$data1[$i] !== @$data2[$i]) {
+                $error  .= 'Difference '.@$data1[$i].' != '.@$data2[$i].PHP_EOL;
+                $error  .= "\t-> ORD number ".ord(@$data1[$i]).' != '.ord(@$data2[$i]).PHP_EOL;
+                $error  .= "\t-> Line Number = $i".PHP_EOL;
                 $start  = ($i - 20);
                 $start  = ($start < 0) ? 0 : $start;
                 $length = 40;
@@ -1137,7 +1137,7 @@ 
                 $error .= "\t-> Section Data1  = ";
                 $error .= substr_replace(
                     substr($data1, $start, $length),
-                    "<b style=\"color:green\">{$data1[ $i ]}</b>",
+                    "<b style=\"color:green\">{$data1[$i]}</b>",
                     $rpoint,
                     $rlength
                 );
@@ -1145,7 +1145,7 @@ 
                 $error .= "\t-> Section Data2  = ";
                 $error .= substr_replace(
                     substr($data2, $start, $length),
-                    "<b style=\"color:red\">{$data2[ $i ]}</b>",
+                    "<b style=\"color:red\">{$data2[$i]}</b>",
                     $rpoint,
                     $rlength
                 );
@@ -1176,7 +1176,7 @@ 
     public function garbageCollection()
     {
         // only perform during regular requests if last garbage collection was over an hour ago
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
+        if ( ! (defined('DOING_AJAX') && DOING_AJAX) && (time() - HOUR_IN_SECONDS) >= $this->_last_gc) {
             $this->_last_gc = time();
             $this->updateSessionSettings(array('last_gc' => $this->_last_gc));
             /** @type WPDB $wpdb */
@@ -1211,7 +1211,7 @@ 
                 // AND option_value < 1508368198 LIMIT 50
                 $expired_sessions = $wpdb->get_col($SQL);
                 // valid results?
-                if (! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
+                if ( ! $expired_sessions instanceof WP_Error && ! empty($expired_sessions)) {
                     $this->cache_storage->deleteMany($expired_sessions, true);
                 }
             }