eventespresso / event-espresso-core

core/business/EE_Transaction_Processor.class.php

Indentation +944 added lines, -944 removed lines

@@ -17,948 +17,948 @@
 class EE_Transaction_Processor extends EE_Processor_Base
 {
 
-    /**
-     * @var EE_Registration_Processor $_instance
-     * @access    private
-     */
-    private static $_instance;
-
-    /**
-     * array of query WHERE params to use when retrieving cached registrations from a transaction
-     *
-     * @var array $registration_query_params
-     * @access private
-     */
-    private $_registration_query_params = array();
-
-    /**
-     * @deprecated
-     * @var string
-     */
-    protected $_old_txn_status;
-
-    /**
-     * @deprecated
-     * @var string
-     */
-    protected $_new_txn_status;
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @access    public
-     * @param array $registration_query_params
-     * @return EE_Transaction_Processor instance
-     */
-    public static function instance($registration_query_params = array())
-    {
-        // check if class object is instantiated
-        if (! self::$_instance instanceof EE_Transaction_Processor) {
-            self::$_instance = new self($registration_query_params);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * @param array $registration_query_params
-     */
-    private function __construct($registration_query_params = array())
-    {
-        // make sure some query params are set for retrieving registrations
-        $this->_set_registration_query_params($registration_query_params);
-    }
-
-
-    /**
-     * @access private
-     * @param array $registration_query_params
-     */
-    private function _set_registration_query_params($registration_query_params)
-    {
-        $this->_registration_query_params = ! empty($registration_query_params) ? $registration_query_params
-            : array('order_by' => array('REG_count' => 'ASC'));
-    }
-
-
-    /**
-     * manually_update_registration_statuses
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @param string         $new_reg_status
-     * @param array          $registration_query_params array of query WHERE params to use
-     *                                                  when retrieving cached registrations from a transaction
-     * @return    boolean
-     * @throws \EE_Error
-     */
-    public function manually_update_registration_statuses(
-        EE_Transaction $transaction,
-        $new_reg_status = '',
-        $registration_query_params = array()
-    ) {
-        $status_updates = $this->_call_method_on_registrations_via_Registration_Processor(
-            'manually_update_registration_status',
-            $transaction,
-            $registration_query_params,
-            $new_reg_status
-        );
-        // send messages
-        /** @type EE_Registration_Processor $registration_processor */
-        $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-        $registration_processor->trigger_registration_update_notifications(
-            $transaction->primary_registration(),
-            array('manually_updated' => true)
-        );
-        do_action(
-            'AHEE__EE_Transaction_Processor__manually_update_registration_statuses',
-            $transaction,
-            $status_updates
-        );
-        return $status_updates;
-    }
-
-
-    /**
-     * toggle_registration_statuses_for_default_approved_events
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @param array          $registration_query_params array of query WHERE params to use
-     *                                                  when retrieving cached registrations from a transaction
-     * @return    boolean
-     * @throws \EE_Error
-     */
-    public function toggle_registration_statuses_for_default_approved_events(
-        EE_Transaction $transaction,
-        $registration_query_params = array()
-    ) {
-        $status_updates = $this->_call_method_on_registrations_via_Registration_Processor(
-            'toggle_registration_status_for_default_approved_events',
-            $transaction,
-            $registration_query_params
-        );
-        do_action(
-            'AHEE__EE_Transaction_Processor__toggle_registration_statuses_for_default_approved_events',
-            $transaction,
-            $status_updates
-        );
-        return $status_updates;
-    }
-
-
-    /**
-     * toggle_registration_statuses_if_no_monies_owing
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @param array          $registration_query_params array of query WHERE params to use
-     *                                                  when retrieving cached registrations from a transaction
-     * @return    boolean
-     * @throws \EE_Error
-     */
-    public function toggle_registration_statuses_if_no_monies_owing(
-        EE_Transaction $transaction,
-        $registration_query_params = array()
-    ) {
-        $status_updates = $this->_call_method_on_registrations_via_Registration_Processor(
-            'toggle_registration_status_if_no_monies_owing',
-            $transaction,
-            $registration_query_params
-        );
-        do_action(
-            'AHEE__EE_Transaction_Processor__toggle_registration_statuses_if_no_monies_owing',
-            $transaction,
-            $status_updates
-        );
-        return $status_updates;
-    }
-
-
-    /**
-     * update_transaction_and_registrations_after_checkout_or_payment
-     * cycles thru related registrations and calls update_registration_after_checkout_or_payment() on each
-     *
-     * @param EE_Transaction     $transaction
-     * @param \EE_Payment | NULL $payment
-     * @param array              $registration_query_params    array of query WHERE params to use
-     *                                                         when retrieving cached registrations from a transaction
-     * @param bool               $trigger_notifications        whether or not to call
-     *                                                         \EE_Registration_Processor::trigger_registration_update_notifications()
-     * @return array
-     * @throws \EE_Error
-     */
-    public function update_transaction_and_registrations_after_checkout_or_payment(
-        EE_Transaction $transaction,
-        $payment = null,
-        $registration_query_params = array(),
-        $trigger_notifications = true
-    ) {
-        // make sure some query params are set for retrieving registrations
-        $this->_set_registration_query_params($registration_query_params);
-        // get final reg step status
-        $finalized = $transaction->final_reg_step_completed();
-        // if the 'finalize_registration' step has been initiated (has a timestamp)
-        // but has not yet been fully completed (TRUE)
-        if (is_int($finalized) && $finalized !== false && $finalized !== true) {
-            $transaction->set_reg_step_completed('finalize_registration');
-            $finalized = true;
-        }
-        $transaction->save();
-        // array of details to aid in decision making by systems
-        $update_params = array(
-            'old_txn_status'  => $transaction->old_txn_status(),
-            'new_txn_status'  => $transaction->status_ID(),
-            'finalized'       => $finalized,
-            'revisit'         => $this->_revisit,
-            'payment_updates' => $payment instanceof EE_Payment ? true : false,
-            'last_payment'    => $payment,
-        );
-        // now update the registrations and add the results to our $update_params
-        $update_params['status_updates'] = $this->_call_method_on_registrations_via_Registration_Processor(
-            'update_registration_after_checkout_or_payment',
-            $transaction,
-            $this->_registration_query_params,
-            $update_params
-        );
-        if ($trigger_notifications) {
-            // send messages
-            /** @type EE_Registration_Processor $registration_processor */
-            $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-            $registration_processor->trigger_registration_update_notifications(
-                $transaction->primary_registration(),
-                $update_params
-            );
-        }
-        do_action(
-            'AHEE__EE_Transaction_Processor__update_transaction_and_registrations_after_checkout_or_payment',
-            $transaction,
-            $update_params
-        );
-        return $update_params;
-    }
-
-
-    /**
-     * update_transaction_after_registration_reopened
-     * readjusts TXN and Line Item totals after a registration is changed from
-     * cancelled or declined to another reg status such as pending payment or approved
-     *
-     * @param \EE_Registration $registration
-     * @param array            $closed_reg_statuses
-     * @param bool             $update_txn
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function update_transaction_after_reinstating_canceled_registration(
-        EE_Registration $registration,
-        $closed_reg_statuses = array(),
-        $update_txn = true
-    ) {
-        // these reg statuses should not be considered in any calculations involving monies owing
-        $closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
-            : EEM_Registration::closed_reg_statuses();
-        if (in_array($registration->status_ID(), $closed_reg_statuses, true)) {
-            return false;
-        }
-        try {
-            $transaction = $this->get_transaction_for_registration($registration);
-            $ticket_line_item = $this->get_ticket_line_item_for_transaction_registration(
-                $transaction,
-                $registration
-            );
-            // un-cancel the ticket
-            $success = EEH_Line_Item::reinstate_canceled_ticket_line_item($ticket_line_item);
-        } catch (EE_Error $e) {
-            EE_Error::add_error(
-                sprintf(
-                    __(
-                        'The Ticket Line Item for Registration %1$d could not be reinstated because :%2$s%3$s',
-                        'event_espresso'
-                    ),
-                    $registration->ID(),
-                    '<br />',
-                    $e->getMessage()
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        if ($update_txn) {
-            return $transaction->save() ? $success : false;
-        }
-        return $success;
-    }
-
-
-    /**
-     * update_transaction_after_canceled_or_declined_registration
-     * readjusts TXN and Line Item totals after a registration is cancelled or declined
-     *
-     * @param \EE_Registration $registration
-     * @param array            $closed_reg_statuses
-     * @param bool             $update_txn
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function update_transaction_after_canceled_or_declined_registration(
-        EE_Registration $registration,
-        $closed_reg_statuses = array(),
-        $update_txn = true
-    ) {
-        // these reg statuses should not be considered in any calculations involving monies owing
-        $closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
-            : EEM_Registration::closed_reg_statuses();
-        if (! in_array($registration->status_ID(), $closed_reg_statuses, true)) {
-            return false;
-        }
-        try {
-            $transaction = $this->get_transaction_for_registration($registration);
-            if (apply_filters(
-                'FHEE__EE_Transaction_Processor__update_transaction_after_canceled_or_declined_registration__cancel_ticket_line_item',
-                true,
-                $registration,
-                $transaction
-            )) {
-                $ticket_line_item = $this->get_ticket_line_item_for_transaction_registration(
-                    $transaction,
-                    $registration
-                );
-                EEH_Line_Item::cancel_ticket_line_item($ticket_line_item);
-            }
-        } catch (EE_Error $e) {
-            EE_Error::add_error(
-                sprintf(
-                    __(
-                        'The Ticket Line Item for Registration %1$d could not be cancelled because :%2$s%3$s',
-                        'event_espresso'
-                    ),
-                    $registration->ID(),
-                    '<br />',
-                    $e->getMessage()
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        if ($update_txn) {
-            return $transaction->save() ? true : false;
-        }
-        return true;
-    }
-
-
-    /**
-     * get_transaction_for_registration
-     *
-     * @access    public
-     * @param    EE_Registration $registration
-     * @return    EE_Transaction
-     * @throws    EE_Error
-     */
-    public function get_transaction_for_registration(EE_Registration $registration)
-    {
-        $transaction = $registration->transaction();
-        if (! $transaction instanceof EE_Transaction) {
-            throw new EE_Error(
-                sprintf(
-                    __('The Transaction for Registration %1$d was not found or is invalid.', 'event_espresso'),
-                    $registration->ID()
-                )
-            );
-        }
-        return $transaction;
-    }
-
-
-    /**
-     * get_ticket_line_item_for_transaction_registration
-     *
-     * @access    public
-     * @param    EE_Transaction  $transaction
-     * @param    EE_Registration $registration
-     * @return    EE_Line_Item
-     * @throws    EE_Error
-     */
-    public function get_ticket_line_item_for_transaction_registration(
-        EE_Transaction $transaction,
-        EE_Registration $registration
-    ) {
-        EE_Registry::instance()->load_helper('Line_Item');
-        $ticket_line_item = EEM_Line_Item::instance()->get_ticket_line_item_for_transaction(
-            $transaction->ID(),
-            $registration->ticket_ID()
-        );
-        if (! $ticket_line_item instanceof EE_Line_Item) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'The Line Item for Transaction %1$d and Ticket %2$d was not found or is invalid.',
-                        'event_espresso'
-                    ),
-                    $transaction->ID(),
-                    $registration->ticket_ID()
-                )
-            );
-        }
-        return $ticket_line_item;
-    }
-
-
-    /**
-     * cancel_transaction_if_all_registrations_canceled
-     * cycles thru related registrations and checks their statuses
-     * if ALL registrations are Cancelled or Declined, then this sets the TXN status to
-     *
-     * @access    public
-     * @param    EE_Transaction $transaction
-     * @param    string         $new_TXN_status
-     * @param    array          $registration_query_params - array of query WHERE params to use when
-     *                                                     retrieving cached registrations from a transaction
-     * @param    array          $closed_reg_statuses
-     * @param    bool           $update_txn
-     * @return    bool            true if TXN status was updated, false if not
-     */
-    public function toggle_transaction_status_if_all_registrations_canceled_or_declined(
-        EE_Transaction $transaction,
-        $new_TXN_status = '',
-        $registration_query_params = array(),
-        $closed_reg_statuses = array(),
-        $update_txn = true
-    ) {
-        // make sure some query params are set for retrieving registrations
-        $this->_set_registration_query_params($registration_query_params);
-        // these reg statuses should not be considered in any calculations involving monies owing
-        $closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
-            : EEM_Registration::closed_reg_statuses();
-        // loop through cached registrations
-        foreach ($transaction->registrations($this->_registration_query_params) as $registration) {
-            if ($registration instanceof EE_Registration
-                && ! in_array($registration->status_ID(), $closed_reg_statuses)
-            ) {
-                return false;
-            }
-        }
-        if (in_array($new_TXN_status, EEM_Transaction::txn_status_array())) {
-            $transaction->set_status($new_TXN_status);
-        }
-        if ($update_txn) {
-            return $transaction->save() ? true : false;
-        }
-        return true;
-    }
-
-
-    /**
-     * _call_method_on_registrations_via_Registration_Processor
-     * cycles thru related registrations and calls the requested method on each
-     *
-     * @access private
-     * @param string         $method_name
-     * @param EE_Transaction $transaction
-     * @param array          $registration_query_params array of query WHERE params to use
-     *                                                  when retrieving cached registrations from a transaction
-     * @param string         $additional_param
-     * @throws \EE_Error
-     * @return boolean
-     */
-    private function _call_method_on_registrations_via_Registration_Processor(
-        $method_name,
-        EE_Transaction $transaction,
-        $registration_query_params = array(),
-        $additional_param = null
-    ) {
-        $response = false;
-        /** @type EE_Registration_Processor $registration_processor */
-        $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-        // check that method exists
-        if (! method_exists($registration_processor, $method_name)) {
-            throw new EE_Error(__('Method does not exist.', 'event_espresso'));
-        }
-        // make sure some query params are set for retrieving registrations
-        $this->_set_registration_query_params($registration_query_params);
-        // loop through cached registrations
-        foreach ($transaction->registrations($this->_registration_query_params) as $registration) {
-            if ($registration instanceof EE_Registration) {
-                if ($additional_param) {
-                    $response = $registration_processor->{$method_name}($registration, $additional_param)
-                        ? true
-                        : $response;
-                } else {
-                    $response = $registration_processor->{$method_name}($registration)
-                        ? true
-                        : $response;
-                }
-            }
-        }
-        return $response;
-    }
-
-
-    /**
-     * set_transaction_payment_method_based_on_registration_statuses
-     * sets or unsets the PMD_ID field on the TXN based on the related REG statuses
-     * basically if ALL Registrations are "Not Approved", then the EE_Transaction.PMD_ID is set to null,
-     * but if any Registration has a different status, then EE_Transaction.PMD_ID is set to either:
-     *        the first "default" Payment Method
-     *        the first active Payment Method
-     *    whichever is found first.
-     *
-     * @param  EE_Registration $edited_registration
-     * @return void
-     * @throws \EE_Error
-     */
-    public function set_transaction_payment_method_based_on_registration_statuses(
-        EE_Registration $edited_registration
-    ) {
-        if ($edited_registration instanceof EE_Registration) {
-            $transaction = $edited_registration->transaction();
-            if ($transaction instanceof EE_Transaction) {
-                $all_not_approved = true;
-                foreach ($transaction->registrations() as $registration) {
-                    if ($registration instanceof EE_Registration) {
-                        // if any REG != "Not Approved" then toggle to false
-                        $all_not_approved = $registration->is_not_approved() ? $all_not_approved : false;
-                    }
-                }
-                // if ALL Registrations are "Not Approved"
-                if ($all_not_approved) {
-                    $transaction->set_payment_method_ID(null);
-                    $transaction->save();
-                } else {
-                    $available_payment_methods = EEM_Payment_Method::instance()->get_all_for_transaction(
-                        $transaction,
-                        EEM_Payment_Method::scope_cart
-                    );
-                    if (! empty($available_payment_methods)) {
-                        $PMD_ID = 0;
-                        foreach ($available_payment_methods as $available_payment_method) {
-                            if ($available_payment_method instanceof EE_Payment_Method
-                                && $available_payment_method->open_by_default()
-                            ) {
-                                $PMD_ID = $available_payment_method->ID();
-                                break;
-                            }
-                        }
-                        if (! $PMD_ID) {
-                            $first_payment_method = reset($available_payment_methods);
-                            if ($first_payment_method instanceof EE_Payment_Method) {
-                                $PMD_ID = $first_payment_method->ID();
-                            } else {
-                                EE_Error::add_error(
-                                    __(
-                                        'A valid Payment Method could not be determined. Please ensure that at least one Payment Method is activated.',
-                                        'event_espresso'
-                                    ),
-                                    __FILE__,
-                                    __LINE__,
-                                    __FUNCTION__
-                                );
-                            }
-                        }
-                        $transaction->set_payment_method_ID($PMD_ID);
-                        $transaction->save();
-                    } else {
-                        EE_Error::add_error(
-                            __(
-                                'Please activate at least one Payment Method in order for things to operate correctly.',
-                                'event_espresso'
-                            ),
-                            __FILE__,
-                            __LINE__,
-                            __FUNCTION__
-                        );
-                    }
-                }
-            }
-        }
-    }
-
-
-
-    /********************************** DEPRECATED METHODS **********************************/
-
-
-    /**
-     * @deprecated 4.9.12
-     * @return string
-     */
-    public function old_txn_status()
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::old_txn_status(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12'
-        );
-        return $this->_old_txn_status;
-    }
-
-
-    /**
-     * @deprecated 4.9.12
-     * @param string $old_txn_status
-     */
-    public function set_old_txn_status($old_txn_status)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::set_old_txn_status(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12'
-        );
-        // only set the first time
-        if ($this->_old_txn_status === null) {
-            $this->_old_txn_status = $old_txn_status;
-        }
-    }
-
-
-    /**
-     * @deprecated 4.9.12
-     * @return string
-     */
-    public function new_txn_status()
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been removed. Please just use \EE_Transaction::status_ID() instead.',
-                'event_espresso'
-            ),
-            '4.9.12'
-        );
-        return $this->_new_txn_status;
-    }
-
-
-    /**
-     * @deprecated 4.9.12
-     * @param string $new_txn_status
-     */
-    public function set_new_txn_status($new_txn_status)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been removed. Please just use \EE_Transaction::set_status() instead.',
-                'event_espresso'
-            ),
-            '4.9.12'
-        );
-        $this->_new_txn_status = $new_txn_status;
-    }
-
-
-    /**
-     * reg_status_updated
-     *
-     * @deprecated 4.9.12
-     * @return bool
-     */
-    public function txn_status_updated()
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::txn_status_updated(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12'
-        );
-        return $this->_new_txn_status !== $this->_old_txn_status && $this->_old_txn_status !== null ? true : false;
-    }
-
-
-    /**
-     * all_reg_steps_completed
-     * returns:
-     *    true if ALL reg steps have been marked as completed
-     *        or false if any step is not completed
-     *
-     * @deprecated 4.9.12
-     * @param EE_Transaction $transaction
-     * @return boolean
-     */
-    public function all_reg_steps_completed(EE_Transaction $transaction)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::all_reg_steps_completed(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->all_reg_steps_completed();
-    }
-
-
-    /**
-     * all_reg_steps_completed_except
-     * returns:
-     *        true if ALL reg steps, except a particular step that you wish to skip over, have been marked as completed
-     *        or false if any other step is not completed
-     *        or false if ALL steps are completed including the exception you are testing !!!
-     *
-     * @deprecated 4.9.12
-     * @param EE_Transaction $transaction
-     * @param string         $exception
-     * @return boolean
-     */
-    public function all_reg_steps_completed_except(EE_Transaction $transaction, $exception = '')
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::all_reg_steps_completed_except(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->all_reg_steps_completed_except($exception);
-    }
-
-
-    /**
-     * all_reg_steps_completed_except
-     * returns:
-     *        true if ALL reg steps, except the final step, have been marked as completed
-     *        or false if any step is not completed
-     *    or false if ALL steps are completed including the final step !!!
-     *
-     * @deprecated 4.9.12
-     * @param EE_Transaction $transaction
-     * @return boolean
-     */
-    public function all_reg_steps_completed_except_final_step(EE_Transaction $transaction)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::all_reg_steps_completed_except_final_step(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->all_reg_steps_completed_except_final_step();
-    }
-
-
-    /**
-     * reg_step_completed
-     * returns:
-     *    true if a specific reg step has been marked as completed
-     *    a Unix timestamp if it has been initialized but not yet completed,
-     *    or false if it has not yet been initialized
-     *
-     * @deprecated 4.9.12
-     * @param EE_Transaction $transaction
-     * @param string         $reg_step_slug
-     * @return boolean | int
-     */
-    public function reg_step_completed(EE_Transaction $transaction, $reg_step_slug)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::reg_step_completed(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->reg_step_completed($reg_step_slug);
-    }
-
-
-    /**
-     * completed_final_reg_step
-     * returns:
-     *    true if the finalize_registration reg step has been marked as completed
-     *    a Unix timestamp if it has been initialized but not yet completed,
-     *    or false if it has not yet been initialized
-     *
-     * @deprecated 4.9.12
-     * @param EE_Transaction $transaction
-     * @return boolean | int
-     */
-    public function final_reg_step_completed(EE_Transaction $transaction)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::final_reg_step_completed(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->final_reg_step_completed();
-    }
-
-
-    /**
-     * set_reg_step_initiated
-     * given a valid TXN_reg_step, this sets it's value to a unix timestamp
-     *
-     * @deprecated 4.9.12
-     * @access     public
-     * @param \EE_Transaction $transaction
-     * @param string          $reg_step_slug
-     * @return boolean
-     * @throws \EE_Error
-     */
-    public function set_reg_step_initiated(EE_Transaction $transaction, $reg_step_slug)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::set_reg_step_initiated(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->set_reg_step_initiated($reg_step_slug);
-    }
-
-
-    /**
-     * set_reg_step_completed
-     * given a valid TXN_reg_step, this sets the step as completed
-     *
-     * @deprecated 4.9.12
-     * @access     public
-     * @param \EE_Transaction $transaction
-     * @param string          $reg_step_slug
-     * @return boolean
-     * @throws \EE_Error
-     */
-    public function set_reg_step_completed(EE_Transaction $transaction, $reg_step_slug)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::set_reg_step_completed(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->set_reg_step_completed($reg_step_slug);
-    }
-
-
-    /**
-     * set_reg_step_completed
-     * given a valid TXN_reg_step slug, this sets the step as NOT completed
-     *
-     * @deprecated 4.9.12
-     * @access     public
-     * @param \EE_Transaction $transaction
-     * @param string          $reg_step_slug
-     * @return boolean
-     * @throws \EE_Error
-     */
-    public function set_reg_step_not_completed(EE_Transaction $transaction, $reg_step_slug)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::set_reg_step_not_completed(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->set_reg_step_not_completed($reg_step_slug);
-    }
-
-
-    /**
-     * remove_reg_step
-     * given a valid TXN_reg_step slug, this will remove (unset)
-     * the reg step from the TXN reg step array
-     *
-     * @deprecated 4.9.12
-     * @access     public
-     * @param \EE_Transaction $transaction
-     * @param string          $reg_step_slug
-     * @return void
-     */
-    public function remove_reg_step(EE_Transaction $transaction, $reg_step_slug)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::remove_reg_step(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        $transaction->remove_reg_step($reg_step_slug);
-    }
-
-
-    /**
-     *    toggle_failed_transaction_status
-     * upgrades a TXNs status from failed to abandoned,
-     * meaning that contact information has been captured for at least one registrant
-     *
-     * @deprecated 4.9.12
-     * @access     public
-     * @param EE_Transaction $transaction
-     * @return    boolean
-     * @throws \EE_Error
-     */
-    public function toggle_failed_transaction_status(EE_Transaction $transaction)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::toggle_failed_transaction_status(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->toggle_failed_transaction_status();
-    }
-
-
-    /**
-     * toggle_abandoned_transaction_status
-     * upgrades a TXNs status from failed or abandoned to incomplete
-     *
-     * @deprecated 4.9.12
-     * @access     public
-     * @param  EE_Transaction $transaction
-     * @return boolean
-     */
-    public function toggle_abandoned_transaction_status(EE_Transaction $transaction)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__(
-                'This logic has been moved into \EE_Transaction::toggle_abandoned_transaction_status(), please use that method instead.',
-                'event_espresso'
-            ),
-            '4.9.12',
-            '5.0.0'
-        );
-        return $transaction->toggle_abandoned_transaction_status();
-    }
+	/**
+	 * @var EE_Registration_Processor $_instance
+	 * @access    private
+	 */
+	private static $_instance;
+
+	/**
+	 * array of query WHERE params to use when retrieving cached registrations from a transaction
+	 *
+	 * @var array $registration_query_params
+	 * @access private
+	 */
+	private $_registration_query_params = array();
+
+	/**
+	 * @deprecated
+	 * @var string
+	 */
+	protected $_old_txn_status;
+
+	/**
+	 * @deprecated
+	 * @var string
+	 */
+	protected $_new_txn_status;
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @access    public
+	 * @param array $registration_query_params
+	 * @return EE_Transaction_Processor instance
+	 */
+	public static function instance($registration_query_params = array())
+	{
+		// check if class object is instantiated
+		if (! self::$_instance instanceof EE_Transaction_Processor) {
+			self::$_instance = new self($registration_query_params);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * @param array $registration_query_params
+	 */
+	private function __construct($registration_query_params = array())
+	{
+		// make sure some query params are set for retrieving registrations
+		$this->_set_registration_query_params($registration_query_params);
+	}
+
+
+	/**
+	 * @access private
+	 * @param array $registration_query_params
+	 */
+	private function _set_registration_query_params($registration_query_params)
+	{
+		$this->_registration_query_params = ! empty($registration_query_params) ? $registration_query_params
+			: array('order_by' => array('REG_count' => 'ASC'));
+	}
+
+
+	/**
+	 * manually_update_registration_statuses
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @param string         $new_reg_status
+	 * @param array          $registration_query_params array of query WHERE params to use
+	 *                                                  when retrieving cached registrations from a transaction
+	 * @return    boolean
+	 * @throws \EE_Error
+	 */
+	public function manually_update_registration_statuses(
+		EE_Transaction $transaction,
+		$new_reg_status = '',
+		$registration_query_params = array()
+	) {
+		$status_updates = $this->_call_method_on_registrations_via_Registration_Processor(
+			'manually_update_registration_status',
+			$transaction,
+			$registration_query_params,
+			$new_reg_status
+		);
+		// send messages
+		/** @type EE_Registration_Processor $registration_processor */
+		$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+		$registration_processor->trigger_registration_update_notifications(
+			$transaction->primary_registration(),
+			array('manually_updated' => true)
+		);
+		do_action(
+			'AHEE__EE_Transaction_Processor__manually_update_registration_statuses',
+			$transaction,
+			$status_updates
+		);
+		return $status_updates;
+	}
+
+
+	/**
+	 * toggle_registration_statuses_for_default_approved_events
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @param array          $registration_query_params array of query WHERE params to use
+	 *                                                  when retrieving cached registrations from a transaction
+	 * @return    boolean
+	 * @throws \EE_Error
+	 */
+	public function toggle_registration_statuses_for_default_approved_events(
+		EE_Transaction $transaction,
+		$registration_query_params = array()
+	) {
+		$status_updates = $this->_call_method_on_registrations_via_Registration_Processor(
+			'toggle_registration_status_for_default_approved_events',
+			$transaction,
+			$registration_query_params
+		);
+		do_action(
+			'AHEE__EE_Transaction_Processor__toggle_registration_statuses_for_default_approved_events',
+			$transaction,
+			$status_updates
+		);
+		return $status_updates;
+	}
+
+
+	/**
+	 * toggle_registration_statuses_if_no_monies_owing
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @param array          $registration_query_params array of query WHERE params to use
+	 *                                                  when retrieving cached registrations from a transaction
+	 * @return    boolean
+	 * @throws \EE_Error
+	 */
+	public function toggle_registration_statuses_if_no_monies_owing(
+		EE_Transaction $transaction,
+		$registration_query_params = array()
+	) {
+		$status_updates = $this->_call_method_on_registrations_via_Registration_Processor(
+			'toggle_registration_status_if_no_monies_owing',
+			$transaction,
+			$registration_query_params
+		);
+		do_action(
+			'AHEE__EE_Transaction_Processor__toggle_registration_statuses_if_no_monies_owing',
+			$transaction,
+			$status_updates
+		);
+		return $status_updates;
+	}
+
+
+	/**
+	 * update_transaction_and_registrations_after_checkout_or_payment
+	 * cycles thru related registrations and calls update_registration_after_checkout_or_payment() on each
+	 *
+	 * @param EE_Transaction     $transaction
+	 * @param \EE_Payment | NULL $payment
+	 * @param array              $registration_query_params    array of query WHERE params to use
+	 *                                                         when retrieving cached registrations from a transaction
+	 * @param bool               $trigger_notifications        whether or not to call
+	 *                                                         \EE_Registration_Processor::trigger_registration_update_notifications()
+	 * @return array
+	 * @throws \EE_Error
+	 */
+	public function update_transaction_and_registrations_after_checkout_or_payment(
+		EE_Transaction $transaction,
+		$payment = null,
+		$registration_query_params = array(),
+		$trigger_notifications = true
+	) {
+		// make sure some query params are set for retrieving registrations
+		$this->_set_registration_query_params($registration_query_params);
+		// get final reg step status
+		$finalized = $transaction->final_reg_step_completed();
+		// if the 'finalize_registration' step has been initiated (has a timestamp)
+		// but has not yet been fully completed (TRUE)
+		if (is_int($finalized) && $finalized !== false && $finalized !== true) {
+			$transaction->set_reg_step_completed('finalize_registration');
+			$finalized = true;
+		}
+		$transaction->save();
+		// array of details to aid in decision making by systems
+		$update_params = array(
+			'old_txn_status'  => $transaction->old_txn_status(),
+			'new_txn_status'  => $transaction->status_ID(),
+			'finalized'       => $finalized,
+			'revisit'         => $this->_revisit,
+			'payment_updates' => $payment instanceof EE_Payment ? true : false,
+			'last_payment'    => $payment,
+		);
+		// now update the registrations and add the results to our $update_params
+		$update_params['status_updates'] = $this->_call_method_on_registrations_via_Registration_Processor(
+			'update_registration_after_checkout_or_payment',
+			$transaction,
+			$this->_registration_query_params,
+			$update_params
+		);
+		if ($trigger_notifications) {
+			// send messages
+			/** @type EE_Registration_Processor $registration_processor */
+			$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+			$registration_processor->trigger_registration_update_notifications(
+				$transaction->primary_registration(),
+				$update_params
+			);
+		}
+		do_action(
+			'AHEE__EE_Transaction_Processor__update_transaction_and_registrations_after_checkout_or_payment',
+			$transaction,
+			$update_params
+		);
+		return $update_params;
+	}
+
+
+	/**
+	 * update_transaction_after_registration_reopened
+	 * readjusts TXN and Line Item totals after a registration is changed from
+	 * cancelled or declined to another reg status such as pending payment or approved
+	 *
+	 * @param \EE_Registration $registration
+	 * @param array            $closed_reg_statuses
+	 * @param bool             $update_txn
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function update_transaction_after_reinstating_canceled_registration(
+		EE_Registration $registration,
+		$closed_reg_statuses = array(),
+		$update_txn = true
+	) {
+		// these reg statuses should not be considered in any calculations involving monies owing
+		$closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
+			: EEM_Registration::closed_reg_statuses();
+		if (in_array($registration->status_ID(), $closed_reg_statuses, true)) {
+			return false;
+		}
+		try {
+			$transaction = $this->get_transaction_for_registration($registration);
+			$ticket_line_item = $this->get_ticket_line_item_for_transaction_registration(
+				$transaction,
+				$registration
+			);
+			// un-cancel the ticket
+			$success = EEH_Line_Item::reinstate_canceled_ticket_line_item($ticket_line_item);
+		} catch (EE_Error $e) {
+			EE_Error::add_error(
+				sprintf(
+					__(
+						'The Ticket Line Item for Registration %1$d could not be reinstated because :%2$s%3$s',
+						'event_espresso'
+					),
+					$registration->ID(),
+					'<br />',
+					$e->getMessage()
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		if ($update_txn) {
+			return $transaction->save() ? $success : false;
+		}
+		return $success;
+	}
+
+
+	/**
+	 * update_transaction_after_canceled_or_declined_registration
+	 * readjusts TXN and Line Item totals after a registration is cancelled or declined
+	 *
+	 * @param \EE_Registration $registration
+	 * @param array            $closed_reg_statuses
+	 * @param bool             $update_txn
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function update_transaction_after_canceled_or_declined_registration(
+		EE_Registration $registration,
+		$closed_reg_statuses = array(),
+		$update_txn = true
+	) {
+		// these reg statuses should not be considered in any calculations involving monies owing
+		$closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
+			: EEM_Registration::closed_reg_statuses();
+		if (! in_array($registration->status_ID(), $closed_reg_statuses, true)) {
+			return false;
+		}
+		try {
+			$transaction = $this->get_transaction_for_registration($registration);
+			if (apply_filters(
+				'FHEE__EE_Transaction_Processor__update_transaction_after_canceled_or_declined_registration__cancel_ticket_line_item',
+				true,
+				$registration,
+				$transaction
+			)) {
+				$ticket_line_item = $this->get_ticket_line_item_for_transaction_registration(
+					$transaction,
+					$registration
+				);
+				EEH_Line_Item::cancel_ticket_line_item($ticket_line_item);
+			}
+		} catch (EE_Error $e) {
+			EE_Error::add_error(
+				sprintf(
+					__(
+						'The Ticket Line Item for Registration %1$d could not be cancelled because :%2$s%3$s',
+						'event_espresso'
+					),
+					$registration->ID(),
+					'<br />',
+					$e->getMessage()
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		if ($update_txn) {
+			return $transaction->save() ? true : false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * get_transaction_for_registration
+	 *
+	 * @access    public
+	 * @param    EE_Registration $registration
+	 * @return    EE_Transaction
+	 * @throws    EE_Error
+	 */
+	public function get_transaction_for_registration(EE_Registration $registration)
+	{
+		$transaction = $registration->transaction();
+		if (! $transaction instanceof EE_Transaction) {
+			throw new EE_Error(
+				sprintf(
+					__('The Transaction for Registration %1$d was not found or is invalid.', 'event_espresso'),
+					$registration->ID()
+				)
+			);
+		}
+		return $transaction;
+	}
+
+
+	/**
+	 * get_ticket_line_item_for_transaction_registration
+	 *
+	 * @access    public
+	 * @param    EE_Transaction  $transaction
+	 * @param    EE_Registration $registration
+	 * @return    EE_Line_Item
+	 * @throws    EE_Error
+	 */
+	public function get_ticket_line_item_for_transaction_registration(
+		EE_Transaction $transaction,
+		EE_Registration $registration
+	) {
+		EE_Registry::instance()->load_helper('Line_Item');
+		$ticket_line_item = EEM_Line_Item::instance()->get_ticket_line_item_for_transaction(
+			$transaction->ID(),
+			$registration->ticket_ID()
+		);
+		if (! $ticket_line_item instanceof EE_Line_Item) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'The Line Item for Transaction %1$d and Ticket %2$d was not found or is invalid.',
+						'event_espresso'
+					),
+					$transaction->ID(),
+					$registration->ticket_ID()
+				)
+			);
+		}
+		return $ticket_line_item;
+	}
+
+
+	/**
+	 * cancel_transaction_if_all_registrations_canceled
+	 * cycles thru related registrations and checks their statuses
+	 * if ALL registrations are Cancelled or Declined, then this sets the TXN status to
+	 *
+	 * @access    public
+	 * @param    EE_Transaction $transaction
+	 * @param    string         $new_TXN_status
+	 * @param    array          $registration_query_params - array of query WHERE params to use when
+	 *                                                     retrieving cached registrations from a transaction
+	 * @param    array          $closed_reg_statuses
+	 * @param    bool           $update_txn
+	 * @return    bool            true if TXN status was updated, false if not
+	 */
+	public function toggle_transaction_status_if_all_registrations_canceled_or_declined(
+		EE_Transaction $transaction,
+		$new_TXN_status = '',
+		$registration_query_params = array(),
+		$closed_reg_statuses = array(),
+		$update_txn = true
+	) {
+		// make sure some query params are set for retrieving registrations
+		$this->_set_registration_query_params($registration_query_params);
+		// these reg statuses should not be considered in any calculations involving monies owing
+		$closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
+			: EEM_Registration::closed_reg_statuses();
+		// loop through cached registrations
+		foreach ($transaction->registrations($this->_registration_query_params) as $registration) {
+			if ($registration instanceof EE_Registration
+				&& ! in_array($registration->status_ID(), $closed_reg_statuses)
+			) {
+				return false;
+			}
+		}
+		if (in_array($new_TXN_status, EEM_Transaction::txn_status_array())) {
+			$transaction->set_status($new_TXN_status);
+		}
+		if ($update_txn) {
+			return $transaction->save() ? true : false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * _call_method_on_registrations_via_Registration_Processor
+	 * cycles thru related registrations and calls the requested method on each
+	 *
+	 * @access private
+	 * @param string         $method_name
+	 * @param EE_Transaction $transaction
+	 * @param array          $registration_query_params array of query WHERE params to use
+	 *                                                  when retrieving cached registrations from a transaction
+	 * @param string         $additional_param
+	 * @throws \EE_Error
+	 * @return boolean
+	 */
+	private function _call_method_on_registrations_via_Registration_Processor(
+		$method_name,
+		EE_Transaction $transaction,
+		$registration_query_params = array(),
+		$additional_param = null
+	) {
+		$response = false;
+		/** @type EE_Registration_Processor $registration_processor */
+		$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+		// check that method exists
+		if (! method_exists($registration_processor, $method_name)) {
+			throw new EE_Error(__('Method does not exist.', 'event_espresso'));
+		}
+		// make sure some query params are set for retrieving registrations
+		$this->_set_registration_query_params($registration_query_params);
+		// loop through cached registrations
+		foreach ($transaction->registrations($this->_registration_query_params) as $registration) {
+			if ($registration instanceof EE_Registration) {
+				if ($additional_param) {
+					$response = $registration_processor->{$method_name}($registration, $additional_param)
+						? true
+						: $response;
+				} else {
+					$response = $registration_processor->{$method_name}($registration)
+						? true
+						: $response;
+				}
+			}
+		}
+		return $response;
+	}
+
+
+	/**
+	 * set_transaction_payment_method_based_on_registration_statuses
+	 * sets or unsets the PMD_ID field on the TXN based on the related REG statuses
+	 * basically if ALL Registrations are "Not Approved", then the EE_Transaction.PMD_ID is set to null,
+	 * but if any Registration has a different status, then EE_Transaction.PMD_ID is set to either:
+	 *        the first "default" Payment Method
+	 *        the first active Payment Method
+	 *    whichever is found first.
+	 *
+	 * @param  EE_Registration $edited_registration
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	public function set_transaction_payment_method_based_on_registration_statuses(
+		EE_Registration $edited_registration
+	) {
+		if ($edited_registration instanceof EE_Registration) {
+			$transaction = $edited_registration->transaction();
+			if ($transaction instanceof EE_Transaction) {
+				$all_not_approved = true;
+				foreach ($transaction->registrations() as $registration) {
+					if ($registration instanceof EE_Registration) {
+						// if any REG != "Not Approved" then toggle to false
+						$all_not_approved = $registration->is_not_approved() ? $all_not_approved : false;
+					}
+				}
+				// if ALL Registrations are "Not Approved"
+				if ($all_not_approved) {
+					$transaction->set_payment_method_ID(null);
+					$transaction->save();
+				} else {
+					$available_payment_methods = EEM_Payment_Method::instance()->get_all_for_transaction(
+						$transaction,
+						EEM_Payment_Method::scope_cart
+					);
+					if (! empty($available_payment_methods)) {
+						$PMD_ID = 0;
+						foreach ($available_payment_methods as $available_payment_method) {
+							if ($available_payment_method instanceof EE_Payment_Method
+								&& $available_payment_method->open_by_default()
+							) {
+								$PMD_ID = $available_payment_method->ID();
+								break;
+							}
+						}
+						if (! $PMD_ID) {
+							$first_payment_method = reset($available_payment_methods);
+							if ($first_payment_method instanceof EE_Payment_Method) {
+								$PMD_ID = $first_payment_method->ID();
+							} else {
+								EE_Error::add_error(
+									__(
+										'A valid Payment Method could not be determined. Please ensure that at least one Payment Method is activated.',
+										'event_espresso'
+									),
+									__FILE__,
+									__LINE__,
+									__FUNCTION__
+								);
+							}
+						}
+						$transaction->set_payment_method_ID($PMD_ID);
+						$transaction->save();
+					} else {
+						EE_Error::add_error(
+							__(
+								'Please activate at least one Payment Method in order for things to operate correctly.',
+								'event_espresso'
+							),
+							__FILE__,
+							__LINE__,
+							__FUNCTION__
+						);
+					}
+				}
+			}
+		}
+	}
+
+
+
+	/********************************** DEPRECATED METHODS **********************************/
+
+
+	/**
+	 * @deprecated 4.9.12
+	 * @return string
+	 */
+	public function old_txn_status()
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::old_txn_status(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12'
+		);
+		return $this->_old_txn_status;
+	}
+
+
+	/**
+	 * @deprecated 4.9.12
+	 * @param string $old_txn_status
+	 */
+	public function set_old_txn_status($old_txn_status)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::set_old_txn_status(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12'
+		);
+		// only set the first time
+		if ($this->_old_txn_status === null) {
+			$this->_old_txn_status = $old_txn_status;
+		}
+	}
+
+
+	/**
+	 * @deprecated 4.9.12
+	 * @return string
+	 */
+	public function new_txn_status()
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been removed. Please just use \EE_Transaction::status_ID() instead.',
+				'event_espresso'
+			),
+			'4.9.12'
+		);
+		return $this->_new_txn_status;
+	}
+
+
+	/**
+	 * @deprecated 4.9.12
+	 * @param string $new_txn_status
+	 */
+	public function set_new_txn_status($new_txn_status)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been removed. Please just use \EE_Transaction::set_status() instead.',
+				'event_espresso'
+			),
+			'4.9.12'
+		);
+		$this->_new_txn_status = $new_txn_status;
+	}
+
+
+	/**
+	 * reg_status_updated
+	 *
+	 * @deprecated 4.9.12
+	 * @return bool
+	 */
+	public function txn_status_updated()
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::txn_status_updated(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12'
+		);
+		return $this->_new_txn_status !== $this->_old_txn_status && $this->_old_txn_status !== null ? true : false;
+	}
+
+
+	/**
+	 * all_reg_steps_completed
+	 * returns:
+	 *    true if ALL reg steps have been marked as completed
+	 *        or false if any step is not completed
+	 *
+	 * @deprecated 4.9.12
+	 * @param EE_Transaction $transaction
+	 * @return boolean
+	 */
+	public function all_reg_steps_completed(EE_Transaction $transaction)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::all_reg_steps_completed(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->all_reg_steps_completed();
+	}
+
+
+	/**
+	 * all_reg_steps_completed_except
+	 * returns:
+	 *        true if ALL reg steps, except a particular step that you wish to skip over, have been marked as completed
+	 *        or false if any other step is not completed
+	 *        or false if ALL steps are completed including the exception you are testing !!!
+	 *
+	 * @deprecated 4.9.12
+	 * @param EE_Transaction $transaction
+	 * @param string         $exception
+	 * @return boolean
+	 */
+	public function all_reg_steps_completed_except(EE_Transaction $transaction, $exception = '')
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::all_reg_steps_completed_except(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->all_reg_steps_completed_except($exception);
+	}
+
+
+	/**
+	 * all_reg_steps_completed_except
+	 * returns:
+	 *        true if ALL reg steps, except the final step, have been marked as completed
+	 *        or false if any step is not completed
+	 *    or false if ALL steps are completed including the final step !!!
+	 *
+	 * @deprecated 4.9.12
+	 * @param EE_Transaction $transaction
+	 * @return boolean
+	 */
+	public function all_reg_steps_completed_except_final_step(EE_Transaction $transaction)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::all_reg_steps_completed_except_final_step(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->all_reg_steps_completed_except_final_step();
+	}
+
+
+	/**
+	 * reg_step_completed
+	 * returns:
+	 *    true if a specific reg step has been marked as completed
+	 *    a Unix timestamp if it has been initialized but not yet completed,
+	 *    or false if it has not yet been initialized
+	 *
+	 * @deprecated 4.9.12
+	 * @param EE_Transaction $transaction
+	 * @param string         $reg_step_slug
+	 * @return boolean | int
+	 */
+	public function reg_step_completed(EE_Transaction $transaction, $reg_step_slug)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::reg_step_completed(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->reg_step_completed($reg_step_slug);
+	}
+
+
+	/**
+	 * completed_final_reg_step
+	 * returns:
+	 *    true if the finalize_registration reg step has been marked as completed
+	 *    a Unix timestamp if it has been initialized but not yet completed,
+	 *    or false if it has not yet been initialized
+	 *
+	 * @deprecated 4.9.12
+	 * @param EE_Transaction $transaction
+	 * @return boolean | int
+	 */
+	public function final_reg_step_completed(EE_Transaction $transaction)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::final_reg_step_completed(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->final_reg_step_completed();
+	}
+
+
+	/**
+	 * set_reg_step_initiated
+	 * given a valid TXN_reg_step, this sets it's value to a unix timestamp
+	 *
+	 * @deprecated 4.9.12
+	 * @access     public
+	 * @param \EE_Transaction $transaction
+	 * @param string          $reg_step_slug
+	 * @return boolean
+	 * @throws \EE_Error
+	 */
+	public function set_reg_step_initiated(EE_Transaction $transaction, $reg_step_slug)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::set_reg_step_initiated(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->set_reg_step_initiated($reg_step_slug);
+	}
+
+
+	/**
+	 * set_reg_step_completed
+	 * given a valid TXN_reg_step, this sets the step as completed
+	 *
+	 * @deprecated 4.9.12
+	 * @access     public
+	 * @param \EE_Transaction $transaction
+	 * @param string          $reg_step_slug
+	 * @return boolean
+	 * @throws \EE_Error
+	 */
+	public function set_reg_step_completed(EE_Transaction $transaction, $reg_step_slug)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::set_reg_step_completed(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->set_reg_step_completed($reg_step_slug);
+	}
+
+
+	/**
+	 * set_reg_step_completed
+	 * given a valid TXN_reg_step slug, this sets the step as NOT completed
+	 *
+	 * @deprecated 4.9.12
+	 * @access     public
+	 * @param \EE_Transaction $transaction
+	 * @param string          $reg_step_slug
+	 * @return boolean
+	 * @throws \EE_Error
+	 */
+	public function set_reg_step_not_completed(EE_Transaction $transaction, $reg_step_slug)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::set_reg_step_not_completed(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->set_reg_step_not_completed($reg_step_slug);
+	}
+
+
+	/**
+	 * remove_reg_step
+	 * given a valid TXN_reg_step slug, this will remove (unset)
+	 * the reg step from the TXN reg step array
+	 *
+	 * @deprecated 4.9.12
+	 * @access     public
+	 * @param \EE_Transaction $transaction
+	 * @param string          $reg_step_slug
+	 * @return void
+	 */
+	public function remove_reg_step(EE_Transaction $transaction, $reg_step_slug)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::remove_reg_step(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		$transaction->remove_reg_step($reg_step_slug);
+	}
+
+
+	/**
+	 *    toggle_failed_transaction_status
+	 * upgrades a TXNs status from failed to abandoned,
+	 * meaning that contact information has been captured for at least one registrant
+	 *
+	 * @deprecated 4.9.12
+	 * @access     public
+	 * @param EE_Transaction $transaction
+	 * @return    boolean
+	 * @throws \EE_Error
+	 */
+	public function toggle_failed_transaction_status(EE_Transaction $transaction)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::toggle_failed_transaction_status(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->toggle_failed_transaction_status();
+	}
+
+
+	/**
+	 * toggle_abandoned_transaction_status
+	 * upgrades a TXNs status from failed or abandoned to incomplete
+	 *
+	 * @deprecated 4.9.12
+	 * @access     public
+	 * @param  EE_Transaction $transaction
+	 * @return boolean
+	 */
+	public function toggle_abandoned_transaction_status(EE_Transaction $transaction)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__(
+				'This logic has been moved into \EE_Transaction::toggle_abandoned_transaction_status(), please use that method instead.',
+				'event_espresso'
+			),
+			'4.9.12',
+			'5.0.0'
+		);
+		return $transaction->toggle_abandoned_transaction_status();
+	}
 }

Spacing +7 added lines, -7 removed lines

@@ -53,7 +53,7 @@ 
     public static function instance($registration_query_params = array())
     {
         // check if class object is instantiated
-        if (! self::$_instance instanceof EE_Transaction_Processor) {
+        if ( ! self::$_instance instanceof EE_Transaction_Processor) {
             self::$_instance = new self($registration_query_params);
         }
         return self::$_instance;
@@ -311,7 +311,7 @@ 
         // these reg statuses should not be considered in any calculations involving monies owing
         $closed_reg_statuses = ! empty($closed_reg_statuses) ? $closed_reg_statuses
             : EEM_Registration::closed_reg_statuses();
-        if (! in_array($registration->status_ID(), $closed_reg_statuses, true)) {
+        if ( ! in_array($registration->status_ID(), $closed_reg_statuses, true)) {
             return false;
         }
         try {
@@ -363,7 +363,7 @@ 
     public function get_transaction_for_registration(EE_Registration $registration)
     {
         $transaction = $registration->transaction();
-        if (! $transaction instanceof EE_Transaction) {
+        if ( ! $transaction instanceof EE_Transaction) {
             throw new EE_Error(
                 sprintf(
                     __('The Transaction for Registration %1$d was not found or is invalid.', 'event_espresso'),
@@ -393,7 +393,7 @@ 
             $transaction->ID(),
             $registration->ticket_ID()
         );
-        if (! $ticket_line_item instanceof EE_Line_Item) {
+        if ( ! $ticket_line_item instanceof EE_Line_Item) {
             throw new EE_Error(
                 sprintf(
                     __(
@@ -476,7 +476,7 @@ 
         /** @type EE_Registration_Processor $registration_processor */
         $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
         // check that method exists
-        if (! method_exists($registration_processor, $method_name)) {
+        if ( ! method_exists($registration_processor, $method_name)) {
             throw new EE_Error(__('Method does not exist.', 'event_espresso'));
         }
         // make sure some query params are set for retrieving registrations
@@ -534,7 +534,7 @@ 
                         $transaction,
                         EEM_Payment_Method::scope_cart
                     );
-                    if (! empty($available_payment_methods)) {
+                    if ( ! empty($available_payment_methods)) {
                         $PMD_ID = 0;
                         foreach ($available_payment_methods as $available_payment_method) {
                             if ($available_payment_method instanceof EE_Payment_Method
@@ -544,7 +544,7 @@ 
                                 break;
                             }
                         }
-                        if (! $PMD_ID) {
+                        if ( ! $PMD_ID) {
                             $first_payment_method = reset($available_payment_methods);
                             if ($first_payment_method instanceof EE_Payment_Method) {
                                 $PMD_ID = $first_payment_method->ID();

core/admin/EE_Help_Tour_final_stop.class.php

Indentation +43 added lines, -43 removed lines

@@ -15,51 +15,51 @@
 class EE_Help_Tour_final_stop extends EE_Help_Tour
 {
 
-    protected function _set_tour_properties()
-    {
-        $this->_label = __('Final Stop Tour', 'event_espresso');
-        $this->_slug = 'final-stop-tour';
-    }
+	protected function _set_tour_properties()
+	{
+		$this->_label = __('Final Stop Tour', 'event_espresso');
+		$this->_slug = 'final-stop-tour';
+	}
 
 
-    protected function _set_tour_stops()
-    {
-        $this->_stops = array(
-            10 => array(
-                'id'          => 'contextual-help-link',
-                'content'     => $this->_end(),
-                'button_text' => __('Quit', 'event_espresso'),
-                'options'     => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentY' => -20,
-                    'tipAdjustmentX' => 10,
-                ),
-            ),
-        );
-    }
+	protected function _set_tour_stops()
+	{
+		$this->_stops = array(
+			10 => array(
+				'id'          => 'contextual-help-link',
+				'content'     => $this->_end(),
+				'button_text' => __('Quit', 'event_espresso'),
+				'options'     => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentY' => -20,
+					'tipAdjustmentX' => 10,
+				),
+			),
+		);
+	}
 
 
-    /**
-     * This is the default last stop for all tours that is displayed at the end of a tour OR when a tour is exited for
-     * the first time.
-     *
-     * @return string
-     */
-    protected function _end()
-    {
-        $query_args = array(
-            'action' => 'admin_option_settings',
-            'page'   => 'espresso_general_settings',
-        );
-        return '<p>'
-               . sprintf(
-                   __(
-                       'That\'s it for the tour!  At any time you can restart a tour by clicking on this help dropdown and then clicking one of the Tour buttons.  There are help tours available on all Event Espresso Admin pages.  If you want to turn off help tours for all pages, %sgo here%s. All the best with your events!',
-                       'event_espresso'
-                   ),
-                   '<a href="' . EE_Admin_Page::add_query_args_and_nonce($query_args, admin_url('admin.php')) . '">',
-                   '</a>'
-               )
-               . '</p>';
-    }
+	/**
+	 * This is the default last stop for all tours that is displayed at the end of a tour OR when a tour is exited for
+	 * the first time.
+	 *
+	 * @return string
+	 */
+	protected function _end()
+	{
+		$query_args = array(
+			'action' => 'admin_option_settings',
+			'page'   => 'espresso_general_settings',
+		);
+		return '<p>'
+			   . sprintf(
+				   __(
+					   'That\'s it for the tour!  At any time you can restart a tour by clicking on this help dropdown and then clicking one of the Tour buttons.  There are help tours available on all Event Espresso Admin pages.  If you want to turn off help tours for all pages, %sgo here%s. All the best with your events!',
+					   'event_espresso'
+				   ),
+				   '<a href="' . EE_Admin_Page::add_query_args_and_nonce($query_args, admin_url('admin.php')) . '">',
+				   '</a>'
+			   )
+			   . '</p>';
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -57,7 +57,7 @@
                        'That\'s it for the tour!  At any time you can restart a tour by clicking on this help dropdown and then clicking one of the Tour buttons.  There are help tours available on all Event Espresso Admin pages.  If you want to turn off help tours for all pages, %sgo here%s. All the best with your events!',
                        'event_espresso'
                    ),
-                   '<a href="' . EE_Admin_Page::add_query_args_and_nonce($query_args, admin_url('admin.php')) . '">',
+                   '<a href="'.EE_Admin_Page::add_query_args_and_nonce($query_args, admin_url('admin.php')).'">',
                    '</a>'
                )
                . '</p>';

modules/single_page_checkout/inc/EE_SPCO_Reg_Step.class.php

Indentation +627 added lines, -627 removed lines

@@ -12,631 +12,631 @@
 abstract class EE_SPCO_Reg_Step
 {
 
-    /**
-     *    $_completed - TRUE if this step has fully completed it's duties
-     *
-     * @access protected
-     * @type bool $_completed
-     */
-    protected $_completed = false;
-
-    /**
-     *    $_is_current_step - TRUE if this is the current step
-     *
-     * @access protected
-     * @type bool $_is_current_step
-     */
-    protected $_is_current_step = false;
-
-    /**
-     *    $_order - when the reg step should be run relative to other steps
-     *
-     * @access protected
-     * @type int $_template
-     */
-    protected $_order = 0;
-
-    /**
-     *    $_slug - URL param for this step
-     *
-     * @access protected
-     * @type string $_slug
-     */
-    protected $_slug;
-
-    /**
-     *    $_name - Step Name - translatable string
-     *
-     * @access protected
-     * @type string $_slug
-     */
-    protected $_name;
-
-    /**
-     *    $_submit_button_text - translatable string that appears on this step's submit button
-     *
-     * @access protected
-     * @type string $_slug
-     */
-    protected $_submit_button_text;
-
-    /**
-     *    $_template - template name
-     *
-     * @access protected
-     * @type string $_template
-     */
-    protected $_template;
-
-    /**
-     *    $_reg_form_name - the form input name and id attribute
-     *
-     * @access protected
-     * @var string $_reg_form_name
-     */
-    protected $_reg_form_name;
-
-    /**
-     *    $_success_message - text to display upon successful form submission
-     *
-     * @access private
-     * @var string $_success_message
-     */
-    protected $_success_message;
-
-    /**
-     *    $_instructions - a brief description of how to complete the reg step.
-     *    Usually displayed in conjunction with the previous step's success message.
-     *
-     * @access private
-     * @var string $_instructions
-     */
-    protected $_instructions;
-
-    /**
-     *    $_valid_data - the normalized and validated data for this step
-     *
-     * @access public
-     * @var array $_valid_data
-     */
-    protected $_valid_data = array();
-
-    /**
-     *    $reg_form - the registration form for this step
-     *
-     * @access public
-     * @var EE_Form_Section_Proper $reg_form
-     */
-    public $reg_form;
-
-    /**
-     *    $checkout - EE_Checkout object for handling the properties of the current checkout process
-     *
-     * @access public
-     * @var EE_Checkout $checkout
-     */
-    public $checkout;
-
-
-    /**
-     * @return void
-     */
-    abstract public function translate_js_strings();
-
-
-    /**
-     * @return void
-     */
-    abstract public function enqueue_styles_and_scripts();
-
-
-    /**
-     * @return boolean
-     */
-    abstract public function initialize_reg_step();
-
-
-    /**
-     * @return string
-     */
-    abstract public function generate_reg_form();
-
-
-    /**
-     * @return boolean
-     */
-    abstract public function process_reg_step();
-
-
-    /**
-     * @return boolean
-     */
-    abstract public function update_reg_step();
-
-
-    /**
-     * @return boolean
-     */
-    public function completed()
-    {
-        return $this->_completed;
-    }
-
-
-    /**
-     * set_completed - toggles $_completed to TRUE
-     */
-    public function set_completed()
-    {
-        // DEBUG LOG
-        // $this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
-        $this->_completed = apply_filters('FHEE__EE_SPCO_Reg_Step__set_completed___completed', true, $this);
-    }
-
-
-    /**
-     * set_completed - toggles $_completed to FALSE
-     */
-    public function set_not_completed()
-    {
-        $this->_completed = false;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function name()
-    {
-        return $this->_name;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function slug()
-    {
-        return $this->_slug;
-    }
-
-
-    /**
-     * submit_button_text
-     * the text that appears on the reg step form submit button
-     *
-     * @return string
-     */
-    public function submit_button_text()
-    {
-        return $this->_submit_button_text;
-    }
-
-
-    /**
-     * set_submit_button_text
-     * sets the text that appears on the reg step form submit button
-     *
-     * @param string $submit_button_text
-     */
-    public function set_submit_button_text($submit_button_text = '')
-    {
-        if (! empty($submit_button_text)) {
-            $this->_submit_button_text = $submit_button_text;
-        } elseif ($this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
-            if ($this->checkout->revisit) {
-                $this->_submit_button_text = sprintf(
-                    __('Update %s', 'event_espresso'),
-                    $this->checkout->current_step->name()
-                );
-            } else {
-                $this->_submit_button_text = sprintf(
-                    __('Proceed to %s', 'event_espresso'),
-                    $this->checkout->next_step->name()
-                );
-            }
-        }
-        // filters the submit button text
-        $this->_submit_button_text = apply_filters(
-            'FHEE__EE_SPCO_Reg_Step__set_submit_button_text___submit_button_text',
-            $this->_submit_button_text,
-            $this->checkout
-        );
-    }
-
-
-    /**
-     * @param boolean $is_current_step
-     */
-    public function set_is_current_step($is_current_step)
-    {
-        $this->_is_current_step = $is_current_step;
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function is_current_step()
-    {
-        return $this->_is_current_step;
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function is_final_step()
-    {
-        return $this instanceof EE_SPCO_Reg_Step_Finalize_Registration ? true : false;
-    }
-
-
-    /**
-     * @param int $order
-     */
-    public function set_order($order)
-    {
-        $this->_order = $order;
-    }
-
-
-    /**
-     * @return int
-     */
-    public function order()
-    {
-        return $this->_order;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function template()
-    {
-        return $this->_template;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function success_message()
-    {
-        return $this->_success_message;
-    }
-
-
-    /**
-     * _set_success_message
-     *
-     * @param string $success_message
-     */
-    protected function _set_success_message($success_message)
-    {
-        $this->_success_message = $success_message;
-    }
-
-
-    /**
-     * _reset_success_message
-     *
-     * @return void
-     */
-    protected function _reset_success_message()
-    {
-        $this->_success_message = '';
-    }
-
-
-    /**
-     * @return string
-     */
-    public function _instructions()
-    {
-        return $this->_instructions;
-    }
-
-
-    /**
-     * @param string $instructions
-     */
-    public function set_instructions($instructions)
-    {
-        $this->_instructions = apply_filters(
-            'FHEE__EE_SPCO_Reg_Step__set_instructions__instructions',
-            $instructions,
-            $this
-        );
-    }
-
-
-    /**
-     * @param array $valid_data
-     */
-    public function set_valid_data($valid_data)
-    {
-        $this->_valid_data = $valid_data;
-    }
-
-
-    /**
-     * @return array
-     */
-    public function valid_data()
-    {
-        if (empty($this->_valid_data)) {
-            $this->_valid_data = $this->reg_form->valid_data();
-        }
-        return $this->_valid_data;
-    }
-
-
-    /**
-     * @return string
-     */
-    public function reg_form_name()
-    {
-        if (empty($this->_reg_form_name)) {
-            $this->set_reg_form_name('ee-spco-' . $this->slug() . '-reg-step-form');
-        }
-        return $this->_reg_form_name;
-    }
-
-
-    /**
-     * @param string $reg_form_name
-     */
-    protected function set_reg_form_name($reg_form_name)
-    {
-        $this->_reg_form_name = $reg_form_name;
-    }
-
-
-    /**
-     * reg_step_url
-     *
-     * @param string $action
-     * @return string
-     */
-    public function reg_step_url($action = '')
-    {
-        $query_args = array('step' => $this->slug());
-        if (! empty($action)) {
-            $query_args['action'] = $action;
-        }
-        // final step has no display
-        if ($this instanceof EE_SPCO_Reg_Step_Finalize_Registration && $action === 'display_spco_reg_step') {
-            $query_args['action'] = 'process_reg_step';
-        }
-        if ($this->checkout->revisit) {
-            $query_args['revisit'] = true;
-        }
-        if ($this->checkout->reg_url_link) {
-            $query_args['e_reg_url_link'] = $this->checkout->reg_url_link;
-        }
-        return add_query_arg($query_args, $this->checkout->reg_page_base_url);
-    }
-
-
-    /**
-     * creates the default hidden inputs section
-     *
-     * @return EE_Form_Section_Proper
-     * @throws \EE_Error
-     */
-    public function reg_step_hidden_inputs()
-    {
-        // hidden inputs for admin registrations
-        if ($this->checkout->admin_request) {
-            return new EE_Form_Section_Proper(
-                array(
-                    'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                    'html_id'         => 'ee-' . $this->slug() . '-hidden-inputs',
-                    'subsections'     => array(
-                        'next_step' => new EE_Fixed_Hidden_Input(
-                            array(
-                                'html_name' => 'next_step',
-                                'html_id'   => 'spco-' . $this->slug() . '-next-step',
-                                'default'   => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
-                                    ? $this->checkout->next_step->slug()
-                                    : '',
-                            )
-                        ),
-                    ),
-                )
-            );
-        }
-        // hidden inputs for frontend registrations
-        return new EE_Form_Section_Proper(
-            array(
-                'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                'html_id'         => 'ee-' . $this->slug() . '-hidden-inputs',
-                'subsections'     => array(
-                    'action'         => new EE_Fixed_Hidden_Input(
-                        array(
-                            'html_name' => 'action',
-                            'html_id'   => 'spco-' . $this->slug() . '-action',
-                            'default'   => apply_filters(
-                                'FHEE__EE_SPCO_Reg_Step__reg_step_hidden_inputs__default_form_action',
-                                empty($this->checkout->reg_url_link)
-                                    ? 'process_reg_step'
-                                    : 'update_reg_step',
-                                $this
-                            ),
-                        )
-                    ),
-                    'next_step'      => new EE_Fixed_Hidden_Input(
-                        array(
-                            'html_name' => 'next_step',
-                            'html_id'   => 'spco-' . $this->slug() . '-next-step',
-                            'default'   => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
-                                ? $this->checkout->next_step->slug()
-                                : '',
-                        )
-                    ),
-                    'e_reg_url_link' => new EE_Fixed_Hidden_Input(
-                        array(
-                            'html_name' => 'e_reg_url_link',
-                            'html_id'   => 'spco-reg_url_link',
-                            'default'   => $this->checkout->reg_url_link,
-                        )
-                    ),
-                    'revisit'        => new EE_Fixed_Hidden_Input(
-                        array(
-                            'html_name' => 'revisit',
-                            'html_id'   => 'spco-revisit',
-                            'default'   => $this->checkout->revisit,
-                        )
-                    ),
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * generate_reg_form_for_actions
-     *
-     * @param array $actions
-     * @return void
-     */
-    public function generate_reg_form_for_actions($actions = array())
-    {
-        $actions = array_merge(
-            array(
-                'generate_reg_form',
-                'display_spco_reg_step',
-                'process_reg_step',
-                'update_reg_step',
-            ),
-            $actions
-        );
-        $this->checkout->generate_reg_form = in_array($this->checkout->action, $actions, true) ? true : false;
-    }
-
-
-    /**
-     * @return string
-     * @throws \EE_Error
-     */
-    public function display_reg_form()
-    {
-        $html = '';
-        if ($this->reg_form instanceof EE_Form_Section_Proper) {
-            do_action('AHEE__EE_SPCO_Reg_Step__display_reg_form__reg_form', $this->reg_form, $this);
-            $html .= ! $this->checkout->admin_request ? $this->reg_form->form_open($this->reg_step_url()) : '';
-            if (EE_Registry::instance()->REQ->ajax) {
-                $this->reg_form->localize_validation_rules();
-                $this->checkout->json_response->add_validation_rules(EE_Form_Section_Proper::js_localization());
-            }
-            $html .= $this->reg_form->get_html();
-            $html .= ! $this->checkout->admin_request ? $this->reg_step_submit_button() : '';
-            $html .= ! $this->checkout->admin_request ? $this->reg_form->form_close() : '';
-        }
-        return $html;
-    }
-
-
-    /**
-     * div_class - returns nothing for current step, but a css class of "hidden" for others
-     *
-     * @return string
-     * @throws \EE_Error
-     */
-    public function reg_step_submit_button()
-    {
-        if (! $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
-            return '';
-        }
-        ob_start();
-        do_action(
-            'AHEE__before_spco_whats_next_buttons',
-            $this->slug(),
-            $this->checkout->next_step->slug(),
-            $this->checkout
-        );
-        $html = ob_get_clean();
-        // generate submit button
-        $sbmt_btn = new EE_Submit_Input(
-            array(
-                'html_name'             => 'spco-go-to-step-' . $this->checkout->next_step->slug(),
-                'html_id'               => 'spco-go-to-step-' . $this->checkout->next_step->slug(),
-                'html_class'            => 'spco-next-step-btn',
-                'other_html_attributes' => ' rel="' . $this->slug() . '"',
-                'default'               => $this->submit_button_text(),
-            )
-        );
-        $sbmt_btn->set_button_css_attributes(true, 'large');
-        $sbmt_btn_html = $sbmt_btn->get_html_for_input();
-        $html .= EEH_HTML::div(
-            apply_filters('FHEE__EE_SPCO_Reg_Step__reg_step_submit_button__sbmt_btn_html', $sbmt_btn_html, $this),
-            'spco-' . $this->slug() . '-whats-next-buttons-dv',
-            'spco-whats-next-buttons'
-        );
-        return $html;
-    }
-
-
-    /**
-     * div_class - returns nothing for current step, but a css class of "hidden" for others
-     *
-     * @return string
-     */
-    public function div_class()
-    {
-        return $this->is_current_step() ? '' : ' hidden';
-    }
-
-
-    /**
-     * div_class - returns  a css class of "hidden" for current step, but nothing for others
-     *
-     * @return string
-     */
-    public function edit_lnk_url()
-    {
-        return add_query_arg(array('step' => $this->slug()), $this->checkout->reg_page_base_url);
-    }
-
-
-    /**
-     * div_class - returns  a css class of "hidden" for current step, but nothing for others
-     *
-     * @return string
-     */
-    public function edit_link_class()
-    {
-        return $this->is_current_step() ? ' hidden' : '';
-    }
-
-
-    /**
-     * update_checkout with changes that have been made to the cart
-     *
-     * @return void
-     * @throws \EE_Error
-     */
-    public function update_checkout()
-    {
-        // grab the cart grand total and reset TXN total
-        $this->checkout->transaction->set_total($this->checkout->cart->get_cart_grand_total());
-        $this->checkout->stash_transaction_and_checkout();
-    }
-
-
-    /**
-     *    __sleep
-     * to conserve db space, let's remove the reg_form and the EE_Checkout object from EE_SPCO_Reg_Step objects upon
-     * serialization EE_Checkout will handle the reimplementation of itself upon waking, but we won't bother with the
-     * reg form, because if needed, it will be regenerated anyways
-     *
-     * @return array
-     */
-    public function __sleep()
-    {
-        // remove the reg form and the checkout
-        return array_diff(array_keys(get_object_vars($this)), array('reg_form', 'checkout'));
-    }
+	/**
+	 *    $_completed - TRUE if this step has fully completed it's duties
+	 *
+	 * @access protected
+	 * @type bool $_completed
+	 */
+	protected $_completed = false;
+
+	/**
+	 *    $_is_current_step - TRUE if this is the current step
+	 *
+	 * @access protected
+	 * @type bool $_is_current_step
+	 */
+	protected $_is_current_step = false;
+
+	/**
+	 *    $_order - when the reg step should be run relative to other steps
+	 *
+	 * @access protected
+	 * @type int $_template
+	 */
+	protected $_order = 0;
+
+	/**
+	 *    $_slug - URL param for this step
+	 *
+	 * @access protected
+	 * @type string $_slug
+	 */
+	protected $_slug;
+
+	/**
+	 *    $_name - Step Name - translatable string
+	 *
+	 * @access protected
+	 * @type string $_slug
+	 */
+	protected $_name;
+
+	/**
+	 *    $_submit_button_text - translatable string that appears on this step's submit button
+	 *
+	 * @access protected
+	 * @type string $_slug
+	 */
+	protected $_submit_button_text;
+
+	/**
+	 *    $_template - template name
+	 *
+	 * @access protected
+	 * @type string $_template
+	 */
+	protected $_template;
+
+	/**
+	 *    $_reg_form_name - the form input name and id attribute
+	 *
+	 * @access protected
+	 * @var string $_reg_form_name
+	 */
+	protected $_reg_form_name;
+
+	/**
+	 *    $_success_message - text to display upon successful form submission
+	 *
+	 * @access private
+	 * @var string $_success_message
+	 */
+	protected $_success_message;
+
+	/**
+	 *    $_instructions - a brief description of how to complete the reg step.
+	 *    Usually displayed in conjunction with the previous step's success message.
+	 *
+	 * @access private
+	 * @var string $_instructions
+	 */
+	protected $_instructions;
+
+	/**
+	 *    $_valid_data - the normalized and validated data for this step
+	 *
+	 * @access public
+	 * @var array $_valid_data
+	 */
+	protected $_valid_data = array();
+
+	/**
+	 *    $reg_form - the registration form for this step
+	 *
+	 * @access public
+	 * @var EE_Form_Section_Proper $reg_form
+	 */
+	public $reg_form;
+
+	/**
+	 *    $checkout - EE_Checkout object for handling the properties of the current checkout process
+	 *
+	 * @access public
+	 * @var EE_Checkout $checkout
+	 */
+	public $checkout;
+
+
+	/**
+	 * @return void
+	 */
+	abstract public function translate_js_strings();
+
+
+	/**
+	 * @return void
+	 */
+	abstract public function enqueue_styles_and_scripts();
+
+
+	/**
+	 * @return boolean
+	 */
+	abstract public function initialize_reg_step();
+
+
+	/**
+	 * @return string
+	 */
+	abstract public function generate_reg_form();
+
+
+	/**
+	 * @return boolean
+	 */
+	abstract public function process_reg_step();
+
+
+	/**
+	 * @return boolean
+	 */
+	abstract public function update_reg_step();
+
+
+	/**
+	 * @return boolean
+	 */
+	public function completed()
+	{
+		return $this->_completed;
+	}
+
+
+	/**
+	 * set_completed - toggles $_completed to TRUE
+	 */
+	public function set_completed()
+	{
+		// DEBUG LOG
+		// $this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
+		$this->_completed = apply_filters('FHEE__EE_SPCO_Reg_Step__set_completed___completed', true, $this);
+	}
+
+
+	/**
+	 * set_completed - toggles $_completed to FALSE
+	 */
+	public function set_not_completed()
+	{
+		$this->_completed = false;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function name()
+	{
+		return $this->_name;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function slug()
+	{
+		return $this->_slug;
+	}
+
+
+	/**
+	 * submit_button_text
+	 * the text that appears on the reg step form submit button
+	 *
+	 * @return string
+	 */
+	public function submit_button_text()
+	{
+		return $this->_submit_button_text;
+	}
+
+
+	/**
+	 * set_submit_button_text
+	 * sets the text that appears on the reg step form submit button
+	 *
+	 * @param string $submit_button_text
+	 */
+	public function set_submit_button_text($submit_button_text = '')
+	{
+		if (! empty($submit_button_text)) {
+			$this->_submit_button_text = $submit_button_text;
+		} elseif ($this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
+			if ($this->checkout->revisit) {
+				$this->_submit_button_text = sprintf(
+					__('Update %s', 'event_espresso'),
+					$this->checkout->current_step->name()
+				);
+			} else {
+				$this->_submit_button_text = sprintf(
+					__('Proceed to %s', 'event_espresso'),
+					$this->checkout->next_step->name()
+				);
+			}
+		}
+		// filters the submit button text
+		$this->_submit_button_text = apply_filters(
+			'FHEE__EE_SPCO_Reg_Step__set_submit_button_text___submit_button_text',
+			$this->_submit_button_text,
+			$this->checkout
+		);
+	}
+
+
+	/**
+	 * @param boolean $is_current_step
+	 */
+	public function set_is_current_step($is_current_step)
+	{
+		$this->_is_current_step = $is_current_step;
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function is_current_step()
+	{
+		return $this->_is_current_step;
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function is_final_step()
+	{
+		return $this instanceof EE_SPCO_Reg_Step_Finalize_Registration ? true : false;
+	}
+
+
+	/**
+	 * @param int $order
+	 */
+	public function set_order($order)
+	{
+		$this->_order = $order;
+	}
+
+
+	/**
+	 * @return int
+	 */
+	public function order()
+	{
+		return $this->_order;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function template()
+	{
+		return $this->_template;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function success_message()
+	{
+		return $this->_success_message;
+	}
+
+
+	/**
+	 * _set_success_message
+	 *
+	 * @param string $success_message
+	 */
+	protected function _set_success_message($success_message)
+	{
+		$this->_success_message = $success_message;
+	}
+
+
+	/**
+	 * _reset_success_message
+	 *
+	 * @return void
+	 */
+	protected function _reset_success_message()
+	{
+		$this->_success_message = '';
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function _instructions()
+	{
+		return $this->_instructions;
+	}
+
+
+	/**
+	 * @param string $instructions
+	 */
+	public function set_instructions($instructions)
+	{
+		$this->_instructions = apply_filters(
+			'FHEE__EE_SPCO_Reg_Step__set_instructions__instructions',
+			$instructions,
+			$this
+		);
+	}
+
+
+	/**
+	 * @param array $valid_data
+	 */
+	public function set_valid_data($valid_data)
+	{
+		$this->_valid_data = $valid_data;
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function valid_data()
+	{
+		if (empty($this->_valid_data)) {
+			$this->_valid_data = $this->reg_form->valid_data();
+		}
+		return $this->_valid_data;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function reg_form_name()
+	{
+		if (empty($this->_reg_form_name)) {
+			$this->set_reg_form_name('ee-spco-' . $this->slug() . '-reg-step-form');
+		}
+		return $this->_reg_form_name;
+	}
+
+
+	/**
+	 * @param string $reg_form_name
+	 */
+	protected function set_reg_form_name($reg_form_name)
+	{
+		$this->_reg_form_name = $reg_form_name;
+	}
+
+
+	/**
+	 * reg_step_url
+	 *
+	 * @param string $action
+	 * @return string
+	 */
+	public function reg_step_url($action = '')
+	{
+		$query_args = array('step' => $this->slug());
+		if (! empty($action)) {
+			$query_args['action'] = $action;
+		}
+		// final step has no display
+		if ($this instanceof EE_SPCO_Reg_Step_Finalize_Registration && $action === 'display_spco_reg_step') {
+			$query_args['action'] = 'process_reg_step';
+		}
+		if ($this->checkout->revisit) {
+			$query_args['revisit'] = true;
+		}
+		if ($this->checkout->reg_url_link) {
+			$query_args['e_reg_url_link'] = $this->checkout->reg_url_link;
+		}
+		return add_query_arg($query_args, $this->checkout->reg_page_base_url);
+	}
+
+
+	/**
+	 * creates the default hidden inputs section
+	 *
+	 * @return EE_Form_Section_Proper
+	 * @throws \EE_Error
+	 */
+	public function reg_step_hidden_inputs()
+	{
+		// hidden inputs for admin registrations
+		if ($this->checkout->admin_request) {
+			return new EE_Form_Section_Proper(
+				array(
+					'layout_strategy' => new EE_Div_Per_Section_Layout(),
+					'html_id'         => 'ee-' . $this->slug() . '-hidden-inputs',
+					'subsections'     => array(
+						'next_step' => new EE_Fixed_Hidden_Input(
+							array(
+								'html_name' => 'next_step',
+								'html_id'   => 'spco-' . $this->slug() . '-next-step',
+								'default'   => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
+									? $this->checkout->next_step->slug()
+									: '',
+							)
+						),
+					),
+				)
+			);
+		}
+		// hidden inputs for frontend registrations
+		return new EE_Form_Section_Proper(
+			array(
+				'layout_strategy' => new EE_Div_Per_Section_Layout(),
+				'html_id'         => 'ee-' . $this->slug() . '-hidden-inputs',
+				'subsections'     => array(
+					'action'         => new EE_Fixed_Hidden_Input(
+						array(
+							'html_name' => 'action',
+							'html_id'   => 'spco-' . $this->slug() . '-action',
+							'default'   => apply_filters(
+								'FHEE__EE_SPCO_Reg_Step__reg_step_hidden_inputs__default_form_action',
+								empty($this->checkout->reg_url_link)
+									? 'process_reg_step'
+									: 'update_reg_step',
+								$this
+							),
+						)
+					),
+					'next_step'      => new EE_Fixed_Hidden_Input(
+						array(
+							'html_name' => 'next_step',
+							'html_id'   => 'spco-' . $this->slug() . '-next-step',
+							'default'   => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
+								? $this->checkout->next_step->slug()
+								: '',
+						)
+					),
+					'e_reg_url_link' => new EE_Fixed_Hidden_Input(
+						array(
+							'html_name' => 'e_reg_url_link',
+							'html_id'   => 'spco-reg_url_link',
+							'default'   => $this->checkout->reg_url_link,
+						)
+					),
+					'revisit'        => new EE_Fixed_Hidden_Input(
+						array(
+							'html_name' => 'revisit',
+							'html_id'   => 'spco-revisit',
+							'default'   => $this->checkout->revisit,
+						)
+					),
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * generate_reg_form_for_actions
+	 *
+	 * @param array $actions
+	 * @return void
+	 */
+	public function generate_reg_form_for_actions($actions = array())
+	{
+		$actions = array_merge(
+			array(
+				'generate_reg_form',
+				'display_spco_reg_step',
+				'process_reg_step',
+				'update_reg_step',
+			),
+			$actions
+		);
+		$this->checkout->generate_reg_form = in_array($this->checkout->action, $actions, true) ? true : false;
+	}
+
+
+	/**
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function display_reg_form()
+	{
+		$html = '';
+		if ($this->reg_form instanceof EE_Form_Section_Proper) {
+			do_action('AHEE__EE_SPCO_Reg_Step__display_reg_form__reg_form', $this->reg_form, $this);
+			$html .= ! $this->checkout->admin_request ? $this->reg_form->form_open($this->reg_step_url()) : '';
+			if (EE_Registry::instance()->REQ->ajax) {
+				$this->reg_form->localize_validation_rules();
+				$this->checkout->json_response->add_validation_rules(EE_Form_Section_Proper::js_localization());
+			}
+			$html .= $this->reg_form->get_html();
+			$html .= ! $this->checkout->admin_request ? $this->reg_step_submit_button() : '';
+			$html .= ! $this->checkout->admin_request ? $this->reg_form->form_close() : '';
+		}
+		return $html;
+	}
+
+
+	/**
+	 * div_class - returns nothing for current step, but a css class of "hidden" for others
+	 *
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function reg_step_submit_button()
+	{
+		if (! $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
+			return '';
+		}
+		ob_start();
+		do_action(
+			'AHEE__before_spco_whats_next_buttons',
+			$this->slug(),
+			$this->checkout->next_step->slug(),
+			$this->checkout
+		);
+		$html = ob_get_clean();
+		// generate submit button
+		$sbmt_btn = new EE_Submit_Input(
+			array(
+				'html_name'             => 'spco-go-to-step-' . $this->checkout->next_step->slug(),
+				'html_id'               => 'spco-go-to-step-' . $this->checkout->next_step->slug(),
+				'html_class'            => 'spco-next-step-btn',
+				'other_html_attributes' => ' rel="' . $this->slug() . '"',
+				'default'               => $this->submit_button_text(),
+			)
+		);
+		$sbmt_btn->set_button_css_attributes(true, 'large');
+		$sbmt_btn_html = $sbmt_btn->get_html_for_input();
+		$html .= EEH_HTML::div(
+			apply_filters('FHEE__EE_SPCO_Reg_Step__reg_step_submit_button__sbmt_btn_html', $sbmt_btn_html, $this),
+			'spco-' . $this->slug() . '-whats-next-buttons-dv',
+			'spco-whats-next-buttons'
+		);
+		return $html;
+	}
+
+
+	/**
+	 * div_class - returns nothing for current step, but a css class of "hidden" for others
+	 *
+	 * @return string
+	 */
+	public function div_class()
+	{
+		return $this->is_current_step() ? '' : ' hidden';
+	}
+
+
+	/**
+	 * div_class - returns  a css class of "hidden" for current step, but nothing for others
+	 *
+	 * @return string
+	 */
+	public function edit_lnk_url()
+	{
+		return add_query_arg(array('step' => $this->slug()), $this->checkout->reg_page_base_url);
+	}
+
+
+	/**
+	 * div_class - returns  a css class of "hidden" for current step, but nothing for others
+	 *
+	 * @return string
+	 */
+	public function edit_link_class()
+	{
+		return $this->is_current_step() ? ' hidden' : '';
+	}
+
+
+	/**
+	 * update_checkout with changes that have been made to the cart
+	 *
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	public function update_checkout()
+	{
+		// grab the cart grand total and reset TXN total
+		$this->checkout->transaction->set_total($this->checkout->cart->get_cart_grand_total());
+		$this->checkout->stash_transaction_and_checkout();
+	}
+
+
+	/**
+	 *    __sleep
+	 * to conserve db space, let's remove the reg_form and the EE_Checkout object from EE_SPCO_Reg_Step objects upon
+	 * serialization EE_Checkout will handle the reimplementation of itself upon waking, but we won't bother with the
+	 * reg form, because if needed, it will be regenerated anyways
+	 *
+	 * @return array
+	 */
+	public function __sleep()
+	{
+		// remove the reg form and the checkout
+		return array_diff(array_keys(get_object_vars($this)), array('reg_form', 'checkout'));
+	}
 }

Spacing +13 added lines, -13 removed lines

@@ -221,7 +221,7 @@ 
      */
     public function set_submit_button_text($submit_button_text = '')
     {
-        if (! empty($submit_button_text)) {
+        if ( ! empty($submit_button_text)) {
             $this->_submit_button_text = $submit_button_text;
         } elseif ($this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
             if ($this->checkout->revisit) {
@@ -379,7 +379,7 @@ 
     public function reg_form_name()
     {
         if (empty($this->_reg_form_name)) {
-            $this->set_reg_form_name('ee-spco-' . $this->slug() . '-reg-step-form');
+            $this->set_reg_form_name('ee-spco-'.$this->slug().'-reg-step-form');
         }
         return $this->_reg_form_name;
     }
@@ -403,7 +403,7 @@ 
     public function reg_step_url($action = '')
     {
         $query_args = array('step' => $this->slug());
-        if (! empty($action)) {
+        if ( ! empty($action)) {
             $query_args['action'] = $action;
         }
         // final step has no display
@@ -433,12 +433,12 @@ 
             return new EE_Form_Section_Proper(
                 array(
                     'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                    'html_id'         => 'ee-' . $this->slug() . '-hidden-inputs',
+                    'html_id'         => 'ee-'.$this->slug().'-hidden-inputs',
                     'subsections'     => array(
                         'next_step' => new EE_Fixed_Hidden_Input(
                             array(
                                 'html_name' => 'next_step',
-                                'html_id'   => 'spco-' . $this->slug() . '-next-step',
+                                'html_id'   => 'spco-'.$this->slug().'-next-step',
                                 'default'   => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
                                     ? $this->checkout->next_step->slug()
                                     : '',
@@ -452,12 +452,12 @@ 
         return new EE_Form_Section_Proper(
             array(
                 'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                'html_id'         => 'ee-' . $this->slug() . '-hidden-inputs',
+                'html_id'         => 'ee-'.$this->slug().'-hidden-inputs',
                 'subsections'     => array(
                     'action'         => new EE_Fixed_Hidden_Input(
                         array(
                             'html_name' => 'action',
-                            'html_id'   => 'spco-' . $this->slug() . '-action',
+                            'html_id'   => 'spco-'.$this->slug().'-action',
                             'default'   => apply_filters(
                                 'FHEE__EE_SPCO_Reg_Step__reg_step_hidden_inputs__default_form_action',
                                 empty($this->checkout->reg_url_link)
@@ -470,7 +470,7 @@ 
                     'next_step'      => new EE_Fixed_Hidden_Input(
                         array(
                             'html_name' => 'next_step',
-                            'html_id'   => 'spco-' . $this->slug() . '-next-step',
+                            'html_id'   => 'spco-'.$this->slug().'-next-step',
                             'default'   => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
                                 ? $this->checkout->next_step->slug()
                                 : '',
@@ -547,7 +547,7 @@ 
      */
     public function reg_step_submit_button()
     {
-        if (! $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
+        if ( ! $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
             return '';
         }
         ob_start();
@@ -561,10 +561,10 @@ 
         // generate submit button
         $sbmt_btn = new EE_Submit_Input(
             array(
-                'html_name'             => 'spco-go-to-step-' . $this->checkout->next_step->slug(),
-                'html_id'               => 'spco-go-to-step-' . $this->checkout->next_step->slug(),
+                'html_name'             => 'spco-go-to-step-'.$this->checkout->next_step->slug(),
+                'html_id'               => 'spco-go-to-step-'.$this->checkout->next_step->slug(),
                 'html_class'            => 'spco-next-step-btn',
-                'other_html_attributes' => ' rel="' . $this->slug() . '"',
+                'other_html_attributes' => ' rel="'.$this->slug().'"',
                 'default'               => $this->submit_button_text(),
             )
         );
@@ -572,7 +572,7 @@ 
         $sbmt_btn_html = $sbmt_btn->get_html_for_input();
         $html .= EEH_HTML::div(
             apply_filters('FHEE__EE_SPCO_Reg_Step__reg_step_submit_button__sbmt_btn_html', $sbmt_btn_html, $this),
-            'spco-' . $this->slug() . '-whats-next-buttons-dv',
+            'spco-'.$this->slug().'-whats-next-buttons-dv',
             'spco-whats-next-buttons'
         );
         return $html;

modules/single_page_checkout/inc/EE_Checkout.class.php

Indentation +1425 added lines, -1425 removed lines

@@ -15,1429 +15,1429 @@
 class EE_Checkout
 {
 
-    /**
-     *    whether current request originated from the EE admin
-     *
-     * @type bool
-     */
-    public $admin_request = false;
-
-    /**
-     * whether returning to edit attendee information or to retry a payment
-     *
-     * @type bool
-     */
-    public $revisit = false;
-
-    /**
-     * whether the primary registrant is returning to edit attendee information or to retry a payment
-     *
-     * @type bool
-     */
-    public $primary_revisit = false;
-
-    /**
-     * is registration allowed to progress or halted for some reason such as failing to pass recaptcha?
-     *
-     * @type bool
-     */
-    public $continue_reg = true;
-
-    /**
-     * redirect to thank you page ?
-     *
-     * @type bool
-     */
-    public $redirect = false;
-
-    /**
-     * generate the reg form or not ?
-     *
-     * @type bool
-     */
-    public $generate_reg_form = true;
-
-    /**
-     * process a reg form submission or not ?
-     *
-     * @type bool
-     */
-    public $process_form_submission = false;
-
-    /**
-     * tracks whether the TXN status modified during this checkout
-     *
-     * @type bool
-     */
-    public $txn_status_updated = false;
-
-    /**
-     * only triggered to true after absolutely everything has finished.
-     *
-     * @type bool
-     */
-    protected $exit_spco = false;
-
-    /**
-     * tracks whether any of the TXN's Registrations statuses modified during this checkout
-     * indexed by registration ID
-     *
-     * @type array
-     */
-    protected $reg_status_updated = array();
-
-    /**
-     * timestamp when redirected from Ticket Selector to the checkout
-     *
-     * @type int
-     */
-    public $uts = 0;
-
-    /**
-     * total number of tickets that were in the cart
-     *
-     * @type int
-     */
-    public $total_ticket_count = 0;
-
-    /**
-     * corresponds loosely to EE_Transaction::remaining()
-     * but can be modified by SPCO
-     *
-     * @type float
-     */
-    public $amount_owing = 0;
-
-    /**
-     * the reg step slug from the incoming request
-     *
-     * @type string
-     */
-    public $step = '';
-
-    /**
-     * the reg step slug for a step being edited
-     *
-     * @type string
-     */
-    public $edit_step = '';
-
-    /**
-     * the action being performed on the current step
-     *
-     * @type string
-     */
-    public $action = '';
-
-    /**
-     * reg_url_link for a previously saved registration
-     *
-     * @type string
-     */
-    public $reg_url_link = '';
-
-    /**
-     * string slug for the payment method that was selected during the payment options step
-     *
-     * @type string
-     */
-    public $selected_method_of_payment = '';
-
-    /**
-     * base url for the site's registration checkout page - additional url params will be added to this
-     *
-     * @type string
-     */
-    public $reg_page_base_url = '';
-
-    /**
-     * base url for the site's registration cancelled page - additional url params will be added to this
-     *
-     * @type string
-     */
-    public $cancel_page_url = '';
-
-    /**
-     * base url for the site's thank you page - additional url params will be added to this
-     *
-     * @type string
-     */
-    public $thank_you_page_url = '';
-
-    /**
-     * base url for any redirects - additional url params will be added to this
-     *
-     * @type string
-     */
-    public $redirect_url = '';
-
-    /**
-     * form of POST data for use with off-site gateways
-     *
-     * @type string
-     */
-    public $redirect_form = '';
-
-    /**
-     * array of query where params to use when retrieving cached registrations from $this->checkout->transaction
-     *
-     * @type array
-     */
-    public $reg_cache_where_params = array();
-
-    /**
-     * a class for managing and creating the JSON encoded array of data that gets passed back to the client during AJAX
-     * requests
-     *
-     * @type EE_SPCO_JSON_Response
-     */
-    public $json_response;
-
-    /**
-     * where we are going next in the reg process
-     *
-     * @type EE_SPCO_Reg_Step
-     */
-    public $next_step;
-
-    /**
-     * where we are in the reg process
-     *
-     * @type EE_SPCO_Reg_Step
-     */
-    public $current_step;
-
-    /**
-     *    $_cart - the current cart object
-     *
-     * @var EE_CART
-     */
-    public $cart;
-
-    /**
-     *    $_transaction - the current transaction object
-     *
-     * @var EE_Transaction
-     */
-    public $transaction;
-
-    /**
-     *    the related attendee object for the primary registrant
-     *
-     * @type EE_Attendee
-     */
-    public $primary_attendee_obj;
-
-    /**
-     *    $payment_method - the payment method object for the selected method of payment
-     *
-     * @type EE_Payment_Method
-     */
-    public $payment_method;
-
-    /**
-     *    $payment - if a payment was successfully made during the reg process,
-     *    then here it is !!!
-     *
-     * @type EE_Payment
-     */
-    public $payment;
-
-    /**
-     *    if a payment method was selected that uses an on-site gateway, then this is the billing form
-     *
-     * @type EE_Billing_Info_Form | EE_Billing_Attendee_Info_Form
-     */
-    public $billing_form;
-
-    /**
-     *    the entire registration form composed of ALL of the subsections generated by the various reg steps
-     *
-     * @type EE_Form_Section_Proper
-     */
-    public $registration_form;
-
-    /**
-     * array of EE_SPCO_Reg_Step objects
-     *
-     * @type EE_SPCO_Reg_Step[]
-     */
-    public $reg_steps = array();
-
-    /**
-     * array of EE_Payment_Method objects
-     *
-     * @type EE_Payment_Method[]
-     */
-    public $available_payment_methods = array();
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     */
-    public function __construct()
-    {
-        $this->reg_page_base_url = EE_Registry::instance()->CFG->core->reg_page_url();
-        $this->thank_you_page_url = EE_Registry::instance()->CFG->core->thank_you_page_url();
-        $this->cancel_page_url = EE_Registry::instance()->CFG->core->cancel_page_url();
-        $this->continue_reg = apply_filters('FHEE__EE_Checkout___construct___continue_reg', true);
-        $this->admin_request = is_admin() && ! EE_Registry::instance()->REQ->ajax;
-        $this->reg_cache_where_params = array(
-            0          => array('REG_deleted' => false),
-            'order_by' => array('REG_count' => 'ASC'),
-        );
-    }
-
-
-    /**
-     * returns true if ANY reg status was updated during checkout
-     *
-     * @return boolean
-     */
-    public function any_reg_status_updated()
-    {
-        foreach ($this->reg_status_updated as $reg_status) {
-            if ($reg_status) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-
-    /**
-     * @param $REG_ID
-     * @return boolean
-     */
-    public function reg_status_updated($REG_ID)
-    {
-        return isset($this->reg_status_updated[ $REG_ID ]) ? $this->reg_status_updated[ $REG_ID ] : false;
-    }
-
-
-    /**
-     * @param $REG_ID
-     * @param $reg_status
-     */
-    public function set_reg_status_updated($REG_ID, $reg_status)
-    {
-        $this->reg_status_updated[ $REG_ID ] = filter_var($reg_status, FILTER_VALIDATE_BOOLEAN);
-    }
-
-
-    /**
-     * exit_spco
-     *
-     * @return bool
-     */
-    public function exit_spco()
-    {
-        return $this->exit_spco;
-    }
-
-
-    /**
-     * set_exit_spco
-     * can ONLY be set by the  Finalize_Registration reg step
-     */
-    public function set_exit_spco()
-    {
-        if ($this->current_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
-            $this->exit_spco = true;
-        }
-    }
-
-
-    /**
-     *    reset_for_current_request
-     *
-     * @access    public
-     * @return    void
-     */
-    public function reset_for_current_request()
-    {
-        $this->process_form_submission = false;
-        $this->continue_reg = apply_filters('FHEE__EE_Checkout___construct___continue_reg', true);
-        $this->admin_request = is_admin() && ! EE_Registry::instance()->REQ->front_ajax;
-        $this->continue_reg = true;
-        $this->redirect = false;
-        // don't reset the cached redirect form if we're about to be asked to display it !!!
-        if (EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step') !== 'redirect_form') {
-            $this->redirect_form = '';
-        }
-        $this->redirect_url = '';
-        $this->json_response = new EE_SPCO_JSON_Response();
-        EE_Form_Section_Proper::reset_js_localization();
-    }
-
-
-    /**
-     *    add_reg_step
-     *
-     * @access    public
-     * @param EE_SPCO_Reg_Step $reg_step_obj
-     * @return    void
-     */
-    public function add_reg_step(EE_SPCO_Reg_Step $reg_step_obj)
-    {
-        $this->reg_steps[ $reg_step_obj->slug() ] = $reg_step_obj;
-    }
-
-
-    /**
-     * skip_reg_step
-     * if the current reg step does not need to run for some reason,
-     * then this will advance SPCO to the next reg step,
-     * and mark the skipped step as completed
-     *
-     * @access    public
-     * @param string $reg_step_slug
-     * @return    void
-     * @throws \EE_Error
-     */
-    public function skip_reg_step($reg_step_slug = '')
-    {
-        $step_to_skip = $this->find_reg_step($reg_step_slug);
-        if ($step_to_skip instanceof EE_SPCO_Reg_Step && $step_to_skip->is_current_step()) {
-            $step_to_skip->set_is_current_step(false);
-            $step_to_skip->set_completed();
-            // advance to the next step
-            $this->set_current_step($this->next_step->slug());
-            // also reset the step param in the request in case any other code references that directly
-            EE_Registry::instance()->REQ->set('step', $this->current_step->slug());
-            // since we are skipping a step and setting the current step to be what was previously the next step,
-            // we need to check that the next step is now correct, and not still set to the current step.
-            if ($this->current_step->slug() === $this->next_step->slug()) {
-                // correctly setup the next step
-                $this->set_next_step();
-            }
-            $this->set_reg_step_initiated($this->current_step);
-        }
-    }
-
-
-    /**
-     *    remove_reg_step
-     *
-     * @access    public
-     * @param string $reg_step_slug
-     * @param bool   $reset whether to reset reg steps after removal
-     * @throws EE_Error
-     */
-    public function remove_reg_step($reg_step_slug = '', $reset = true)
-    {
-        unset($this->reg_steps[ $reg_step_slug ]);
-        if ($this->transaction instanceof EE_Transaction) {
-            // now remove reg step from TXN and save
-            $this->transaction->remove_reg_step($reg_step_slug);
-            $this->transaction->save();
-        }
-        if ($reset) {
-            $this->reset_reg_steps();
-        }
-    }
-
-
-    /**
-     *    set_reg_step_order
-     *
-     * @access    public
-     * @param string $reg_step_slug
-     * @param int    $order
-     * @return    void
-     */
-    public function set_reg_step_order($reg_step_slug = '', $order = 100)
-    {
-        if (isset($this->reg_steps[ $reg_step_slug ])) {
-            $this->reg_steps[ $reg_step_slug ]->set_order($order);
-        }
-    }
-
-
-    /**
-     *    set_current_step
-     *
-     * @access    public
-     * @param string $current_step
-     * @return    void
-     */
-    public function set_current_step($current_step)
-    {
-        // grab what step we're on
-        $this->current_step = isset($this->reg_steps[ $current_step ])
-            ? $this->reg_steps[ $current_step ]
-            : reset(
-                $this->reg_steps
-            );
-        // verify instance
-        if ($this->current_step instanceof EE_SPCO_Reg_Step) {
-            // we don't want to repeat completed steps if this is the first time through SPCO
-            if ($this->continue_reg && ! $this->revisit && $this->current_step->completed()) {
-                // so advance to the next step
-                $this->set_next_step();
-                if ($this->next_step instanceof EE_SPCO_Reg_Step) {
-                    // and attempt to set it as the current step
-                    $this->set_current_step($this->next_step->slug());
-                }
-                return;
-            }
-            $this->current_step->set_is_current_step(true);
-        } else {
-            EE_Error::add_error(
-                __('The current step could not be set.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-    }
-
-
-    /**
-     *    set_next_step
-     * advances the reg_steps array pointer and sets the next step, then reverses pointer back to the current step
-     *
-     * @access    public
-     * @return    void
-     */
-    public function set_next_step()
-    {
-        // set pointer to start of array
-        reset($this->reg_steps);
-        // if there is more than one step
-        if (count($this->reg_steps) > 1) {
-            // advance to the current step and set pointer
-            while (key($this->reg_steps) !== $this->current_step->slug() && key($this->reg_steps) !== '') {
-                next($this->reg_steps);
-            }
-        }
-        // advance one more spot ( if it exists )
-        $this->next_step = next($this->reg_steps);
-        // verify instance
-        $this->next_step = $this->next_step instanceof EE_SPCO_Reg_Step ? $this->next_step : null;
-        // then back to current step to reset
-        prev($this->reg_steps);
-    }
-
-
-    /**
-     *    get_next_reg_step
-     *    this simply returns the next step from reg_steps array
-     *
-     * @access    public
-     * @return    EE_SPCO_Reg_Step | null
-     */
-    public function get_next_reg_step()
-    {
-        $next = next($this->reg_steps);
-        prev($this->reg_steps);
-        return $next instanceof EE_SPCO_Reg_Step ? $next : null;
-    }
-
-
-    /**
-     * get_prev_reg_step
-     *    this simply returns the previous step from reg_steps array
-     *
-     * @access    public
-     * @return    EE_SPCO_Reg_Step | null
-     */
-    public function get_prev_reg_step()
-    {
-        $prev = prev($this->reg_steps);
-        next($this->reg_steps);
-        return $prev instanceof EE_SPCO_Reg_Step ? $prev : null;
-    }
-
-
-    /**
-     * sort_reg_steps
-     *
-     * @access public
-     * @return void
-     */
-    public function sort_reg_steps()
-    {
-        $reg_step_sorting_callback = apply_filters(
-            'FHEE__EE_Checkout__sort_reg_steps__reg_step_sorting_callback',
-            'reg_step_sorting_callback'
-        );
-        uasort($this->reg_steps, array($this, $reg_step_sorting_callback));
-    }
-
-
-    /**
-     * find_reg_step
-     * finds a reg step by the given slug
-     *
-     * @access    public
-     * @param string $reg_step_slug
-     * @return EE_SPCO_Reg_Step|null
-     */
-    public function find_reg_step($reg_step_slug = '')
-    {
-        if (! empty($reg_step_slug)) {
-            // copy reg step array
-            $reg_steps = $this->reg_steps;
-            // set pointer to start of array
-            reset($reg_steps);
-            // if there is more than one step
-            if (count($reg_steps) > 1) {
-                // advance to the current step and set pointer
-                while (key($reg_steps) !== $reg_step_slug && key($reg_steps) !== '') {
-                    next($reg_steps);
-                }
-                return current($reg_steps);
-            }
-        }
-        return null;
-    }
-
-
-    /**
-     * reg_step_sorting_callback
-     *
-     * @access public
-     * @param EE_SPCO_Reg_Step $reg_step_A
-     * @param EE_SPCO_Reg_Step $reg_step_B
-     * @return int
-     */
-    public function reg_step_sorting_callback(EE_SPCO_Reg_Step $reg_step_A, EE_SPCO_Reg_Step $reg_step_B)
-    {
-        // send finalize_registration step to the end of the array
-        if ($reg_step_A->slug() === 'finalize_registration') {
-            return 1;
-        } elseif ($reg_step_B->slug() === 'finalize_registration') {
-            return -1;
-        }
-        if ($reg_step_A->order() === $reg_step_B->order()) {
-            return 0;
-        }
-        return ($reg_step_A->order() > $reg_step_B->order()) ? 1 : -1;
-    }
-
-
-    /**
-     * set_reg_step_initiated
-     *
-     * @access    public
-     * @param    EE_SPCO_Reg_Step $reg_step
-     * @throws \EE_Error
-     */
-    public function set_reg_step_initiated(EE_SPCO_Reg_Step $reg_step)
-    {
-        // call set_reg_step_initiated ???
-        if (// first time visiting SPCO ?
-            ! $this->revisit
-            && (
-                // and displaying the reg step form for the first time ?
-                $this->action === 'display_spco_reg_step'
-                // or initializing the final step
-                || $reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration
-            )
-        ) {
-            // set the start time for this reg step
-            if (! $this->transaction->set_reg_step_initiated($reg_step->slug())) {
-                if (WP_DEBUG) {
-                    EE_Error::add_error(
-                        sprintf(
-                            __('The "%1$s" registration step was not initialized properly.', 'event_espresso'),
-                            $reg_step->name()
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            }
-        }
-    }
-
-
-    /**
-     *    set_reg_step_JSON_info
-     *
-     * @access public
-     * @return    void
-     */
-    public function set_reg_step_JSON_info()
-    {
-        EE_Registry::$i18n_js_strings['reg_steps'] = array();
-        // pass basic reg step data to JS
-        foreach ($this->reg_steps as $reg_step) {
-            EE_Registry::$i18n_js_strings['reg_steps'][] = $reg_step->slug();
-        }
-        // reset reg step html
-        // $this->json_response->set_reg_step_html('');
-    }
-
-
-    /**
-     *    reset_reg_steps
-     *
-     * @access public
-     * @return void
-     */
-    public function reset_reg_steps()
-    {
-        $this->sort_reg_steps();
-        $this->set_current_step(EE_Registry::instance()->REQ->get('step'));
-        $this->set_next_step();
-        // the text that appears on the reg step form submit button
-        $this->current_step->set_submit_button_text();
-        $this->set_reg_step_JSON_info();
-    }
-
-
-    /**
-     *    get_registration_time_limit
-     *
-     * @access    public
-     * @return        string
-     */
-    public function get_registration_time_limit()
-    {
-
-        $registration_time_limit = (float) (EE_Registry::instance()->SSN->expiration() - time());
-        $time_limit_format = $registration_time_limit > 60 * MINUTE_IN_SECONDS ? 'H:i:s' : 'i:s';
-        $registration_time_limit = date($time_limit_format, $registration_time_limit);
-        return apply_filters(
-            'FHEE__EE_Checkout__get_registration_time_limit__registration_time_limit',
-            $registration_time_limit
-        );
-    }
-
-
-    /**
-     * payment_required
-     *
-     * @return boolean
-     */
-    public function payment_required()
-    {
-        // if NOT:
-        //     registration via admin
-        //      completed TXN
-        //      overpaid TXN
-        //      free TXN(total = 0.00)
-        //      then payment required is TRUE
-        return ! ($this->admin_request
-                  || $this->transaction->is_completed()
-                  || $this->transaction->is_overpaid()
-                  || $this->transaction->is_free()) ? true : false;
-    }
-
-
-    /**
-     * get_cart_for_transaction
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    public function get_cart_for_transaction($transaction)
-    {
-        $session = EE_Registry::instance()->load_core('Session');
-        $cart = $transaction instanceof EE_Transaction ? EE_Cart::get_cart_from_txn($transaction, $session) : null;
-        // verify cart
-        if (! $cart instanceof EE_Cart) {
-            $cart = EE_Registry::instance()->load_core('Cart');
-        }
-
-        return $cart;
-    }
-
-
-    /**
-     *    initialize_txn_reg_steps_array
-     *
-     * @access public
-     * @return    array
-     */
-    public function initialize_txn_reg_steps_array()
-    {
-        $txn_reg_steps_array = array();
-        foreach ($this->reg_steps as $reg_step) {
-            $txn_reg_steps_array[ $reg_step->slug() ] = false;
-        }
-        return $txn_reg_steps_array;
-    }
-
-
-    /**
-     *    update_txn_reg_steps_array
-     *
-     * @access public
-     * @return    bool
-     * @throws \EE_Error
-     */
-    public function update_txn_reg_steps_array()
-    {
-        $updated = false;
-        foreach ($this->reg_steps as $reg_step) {
-            if ($reg_step->completed()) {
-                $updated = $this->transaction->set_reg_step_completed($reg_step->slug())
-                    ? true
-                    : $updated;
-            }
-        }
-        if ($updated) {
-            $this->transaction->save();
-        }
-        return $updated;
-    }
-
-
-    /**
-     *    stash_transaction_and_checkout
-     *
-     * @access public
-     * @return    void
-     * @throws \EE_Error
-     */
-    public function stash_transaction_and_checkout()
-    {
-        if (! $this->revisit) {
-            $this->update_txn_reg_steps_array();
-        }
-        $this->track_transaction_and_registration_status_updates();
-        // save all data to the db, but suppress errors
-        // $this->save_all_data( FALSE );
-        // cache the checkout in the session
-        EE_Registry::instance()->SSN->set_checkout($this);
-    }
-
-
-    /**
-     *    track_transaction_and_registration_status_updates
-     *    stores whether any updates were made to the TXN or it's related registrations
-     *
-     * @access public
-     * @return void
-     * @throws \EE_Error
-     */
-    public function track_transaction_and_registration_status_updates()
-    {
-        // verify the transaction
-        if ($this->transaction instanceof EE_Transaction) {
-            // has there been a TXN status change during this checkout?
-            $this->txn_status_updated = $this->transaction->txn_status_updated();
-            /** @type EE_Registration_Processor $registration_processor */
-            $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-            // grab the saved registrations from the transaction
-            foreach ($this->transaction->registrations($this->reg_cache_where_params) as $registration) {
-                if ($registration_processor->reg_status_updated($registration->ID())) {
-                    $this->set_reg_status_updated($registration->ID(), true);
-                }
-            }
-        }
-    }
-
-
-    /**
-     *    visit_allows_processing_of_this_registration
-     *    determines if the current SPCO visit should allow the passed EE_Registration to be used in processing.
-     *    one of the following conditions must be met:
-     *        EITHER:    A) first time thru SPCO -> process ALL registrations ( NOT a revisit )
-     *        OR :        B) primary registrant is editing info -> process ALL registrations ( primary_revisit )
-     *        OR :        C) another registrant is editing info -> ONLY process their registration ( revisit AND their
-     *        reg_url_link matches )
-     *
-     * @access public
-     * @param    EE_Registration $registration
-     * @return    bool
-     * @throws \EE_Error
-     */
-    public function visit_allows_processing_of_this_registration(EE_Registration $registration)
-    {
-        return ! $this->revisit
-               || $this->primary_revisit
-               || (
-                   $this->revisit && $this->reg_url_link === $registration->reg_url_link()
-               )
-            ? true
-            : false;
-    }
-
-
-    /**
-     *    _transaction_has_primary_registration
-     *
-     * @access        private
-     * @return        bool
-     */
-    public function transaction_has_primary_registrant()
-    {
-        return $this->primary_attendee_obj instanceof EE_Attendee ? true : false;
-    }
-
-
-    /**
-     *    save_all_data
-     *    simply loops through the current transaction and saves all data for each registration
-     *
-     * @access public
-     * @param bool $show_errors
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function save_all_data($show_errors = true)
-    {
-        // verify the transaction
-        if ($this->transaction instanceof EE_Transaction) {
-            // save to ensure that TXN has ID
-            $this->transaction->save();
-            // grab the saved registrations from the transaction
-            foreach ($this->transaction->registrations($this->reg_cache_where_params) as $registration) {
-                $this->_save_registration($registration, $show_errors);
-            }
-        } else {
-            if ($show_errors) {
-                EE_Error::add_error(
-                    __(
-                        'A valid Transaction was not found when attempting to save your registration information.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-            return false;
-        }
-        return true;
-    }
-
-
-    /**
-     * _save_registration_attendee
-     *
-     * @param    EE_Registration $registration
-     * @param bool               $show_errors
-     * @return void
-     * @throws \EE_Error
-     */
-    private function _save_registration($registration, $show_errors = true)
-    {
-        // verify object
-        if ($registration instanceof EE_Registration) {
-            // should this registration be processed during this visit ?
-            if ($this->visit_allows_processing_of_this_registration($registration)) {
-                // set TXN ID
-                if (! $registration->transaction_ID()) {
-                    $registration->set_transaction_id($this->transaction->ID());
-                }
-                // verify and save the attendee
-                $this->_save_registration_attendee($registration, $show_errors);
-                // save answers to reg form questions
-                $this->_save_registration_answers($registration, $show_errors);
-                // save changes
-                $registration->save();
-                // update txn cache
-                if (! $this->transaction->update_cache_after_object_save('Registration', $registration)) {
-                    if ($show_errors) {
-                        EE_Error::add_error(
-                            __(
-                                'The newly saved Registration object could not be cached on the Transaction.',
-                                'event_espresso'
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                    }
-                }
-            }
-        } else {
-            if ($show_errors) {
-                EE_Error::add_error(
-                    __(
-                        'An invalid Registration object was discovered when attempting to save your registration information.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        }
-    }
-
-
-    /**
-     * _save_registration_attendee
-     *
-     * @param    EE_Registration $registration
-     * @param bool               $show_errors
-     * @return void
-     * @throws \EE_Error
-     */
-    private function _save_registration_attendee($registration, $show_errors = true)
-    {
-        if ($registration->attendee() instanceof EE_Attendee) {
-            // save so that ATT has ID
-            $registration->attendee()->save();
-            if (! $registration->update_cache_after_object_save('Attendee', $registration->attendee())) {
-                if ($show_errors) {
-                    EE_Error::add_error(
-                        __(
-                            'The newly saved Attendee object could not be cached on the registration.',
-                            'event_espresso'
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            }
-        } else {
-            if ($show_errors) {
-                EE_Error::add_error(
-                    sprintf(
-                        '%1$s||%1$s $attendee = %2$s',
-                        __(
-                            'Either no Attendee information was found, or an invalid Attendee object was discovered when attempting to save your registration information.',
-                            'event_espresso'
-                        ),
-                        var_export($registration->attendee(), true)
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        }
-    }
-
-
-    /**
-     * _save_question_answers
-     *
-     * @param    EE_Registration $registration
-     * @param bool               $show_errors
-     * @return void
-     * @throws \EE_Error
-     */
-    private function _save_registration_answers($registration, $show_errors = true)
-    {
-        // now save the answers
-        foreach ($registration->answers() as $cache_key => $answer) {
-            // verify object
-            if ($answer instanceof EE_Answer) {
-                $answer->set_registration($registration->ID());
-                $answer->save();
-                if (! $registration->update_cache_after_object_save('Answer', $answer, $cache_key)) {
-                    if ($show_errors) {
-                        EE_Error::add_error(
-                            __(
-                                'The newly saved Answer object could not be cached on the registration.',
-                                'event_espresso'
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                    }
-                }
-            } else {
-                if ($show_errors) {
-                    EE_Error::add_error(
-                        __(
-                            'An invalid Answer object was discovered when attempting to save your registration information.',
-                            'event_espresso'
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            }
-        }
-    }
-
-
-    /**
-     *    refresh_all_entities
-     *   will either refresh the entity map with objects form the db or from the checkout cache
-     *
-     * @access public
-     * @param bool $from_db
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function refresh_all_entities($from_db = false)
-    {
-        $from_db = $this->current_step->is_final_step() || $this->action === 'process_gateway_response'
-            ? true
-            : $from_db;
-        // $this->log(
-        //     __CLASS__,
-        //     __FUNCTION__,
-        //     __LINE__,
-        //     array('from_db' => $from_db)
-        // );
-        return $from_db ? $this->refresh_from_db() : $this->refresh_entity_map();
-    }
-
-
-    /**
-     *  refresh_entity_map
-     *  simply loops through the current transaction and updates each
-     *  model's entity map using EEM_Base::refresh_entity_map_from_db()
-     *
-     * @access public
-     * @return bool
-     * @throws \EE_Error
-     */
-    protected function refresh_from_db()
-    {
-        // verify the transaction
-        if ($this->transaction instanceof EE_Transaction && $this->transaction->ID()) {
-            // pull fresh TXN data from the db
-            $this->transaction = $this->transaction->get_model()->refresh_entity_map_from_db($this->transaction->ID());
-            // update EE_Checkout's cached primary_attendee object
-            $this->primary_attendee_obj = $this->_refresh_primary_attendee_obj_from_db($this->transaction);
-            // update EE_Checkout's cached payment object
-            $payment = $this->transaction->last_payment();
-            $this->payment = $payment instanceof EE_Payment ? $payment : $this->payment;
-            // update EE_Checkout's cached payment_method object
-            $payment_method = $this->payment instanceof EE_Payment ? $this->payment->payment_method() : null;
-            $this->payment_method = $payment_method instanceof EE_Payment_Method ? $payment_method
-                : $this->payment_method;
-            // now refresh the cart, based on the TXN
-            $this->cart = $this->get_cart_for_transaction($this->transaction);
-        } else {
-            EE_Error::add_error(
-                __(
-                    'A valid Transaction was not found when attempting to update the model entity mapper.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        return true;
-    }
-
-
-    /**
-     * _refresh_primary_attendee_obj_from_db
-     *
-     * @param   EE_Transaction $transaction
-     * @return  EE_Attendee | null
-     * @throws \EE_Error
-     */
-    protected function _refresh_primary_attendee_obj_from_db(EE_Transaction $transaction)
-    {
-
-        $primary_attendee_obj = null;
-        // grab the saved registrations from the transaction
-        foreach ($transaction->registrations($this->reg_cache_where_params, true) as $registration) {
-            // verify object
-            if ($registration instanceof EE_Registration) {
-                $attendee = $registration->attendee();
-                // verify object && maybe cache primary_attendee_obj ?
-                if ($attendee instanceof EE_Attendee && $registration->is_primary_registrant()) {
-                    $primary_attendee_obj = $attendee;
-                }
-            } else {
-                EE_Error::add_error(
-                    __(
-                        'An invalid Registration object was discovered when attempting to update the model entity mapper.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        }
-        return $primary_attendee_obj;
-    }
-
-
-    /**
-     *  refresh_entity_map
-     *  simply loops through the current transaction and updates
-     *  each model's entity map using EEM_Base::refresh_entity_map_with()
-     *
-     * @access public
-     * @return bool
-     * @throws \EE_Error
-     */
-    protected function refresh_entity_map()
-    {
-        // verify the transaction
-        if ($this->transaction instanceof EE_Transaction && $this->transaction->ID()) {
-            // never cache payment info
-            $this->transaction->clear_cache('Payment');
-            // is the Payment Options Reg Step completed ?
-            if ($this->transaction->reg_step_completed('payment_options')) {
-                // then check for payments and update TXN accordingly
-                /** @type EE_Transaction_Payments $transaction_payments */
-                $transaction_payments = EE_Registry::instance()->load_class('Transaction_Payments');
-                $transaction_payments->calculate_total_payments_and_update_status($this->transaction);
-            }
-            // grab the saved registrations from the transaction
-            foreach ($this->transaction->registrations($this->reg_cache_where_params) as $reg_cache_ID => $registration) {
-                $this->_refresh_registration($reg_cache_ID, $registration);
-            }
-            // make sure our cached TXN is added to the model entity mapper
-            $this->transaction = $this->transaction->get_model()->refresh_entity_map_with(
-                $this->transaction->ID(),
-                $this->transaction
-            );
-        } else {
-            EE_Error::add_error(
-                __(
-                    'A valid Transaction was not found when attempting to update the model entity mapper.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // verify and update the cart because inaccurate totals are not so much fun
-        if ($this->cart instanceof EE_Cart) {
-            $grand_total = $this->cart->get_grand_total();
-            if ($grand_total instanceof EE_Line_Item && $grand_total->ID()) {
-                $grand_total->recalculate_total_including_taxes();
-                $grand_total = $grand_total->get_model()->refresh_entity_map_with(
-                    $this->cart->get_grand_total()->ID(),
-                    $this->cart->get_grand_total()
-                );
-            }
-            if ($grand_total instanceof EE_Line_Item) {
-                $this->cart = EE_Cart::instance($grand_total);
-            } else {
-                EE_Error::add_error(
-                    __(
-                        'A valid Cart was not found when attempting to update the model entity mapper.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-        }
-        return true;
-    }
-
-
-    /**
-     * _refresh_registration
-     *
-     * @param    string | int    $reg_cache_ID
-     * @param    EE_Registration $registration
-     * @return void
-     * @throws \EE_Error
-     */
-    protected function _refresh_registration($reg_cache_ID, $registration)
-    {
-
-        // verify object
-        if ($registration instanceof EE_Registration) {
-            // update the entity mapper attendee
-            $this->_refresh_registration_attendee($registration);
-            // update the entity mapper answers for reg form questions
-            $this->_refresh_registration_answers($registration);
-            // make sure the cached registration is added to the model entity mapper
-            $registration->get_model()->refresh_entity_map_with($reg_cache_ID, $registration);
-        } else {
-            EE_Error::add_error(
-                __(
-                    'An invalid Registration object was discovered when attempting to update the model entity mapper.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-    }
-
-
-    /**
-     * _save_registration_attendee
-     *
-     * @param    EE_Registration $registration
-     * @return void
-     * @throws \EE_Error
-     */
-    protected function _refresh_registration_attendee($registration)
-    {
-
-        $attendee = $registration->attendee();
-        // verify object
-        if ($attendee instanceof EE_Attendee && $attendee->ID()) {
-            // make sure the cached attendee is added to the model entity mapper
-            $registration->attendee()->get_model()->refresh_entity_map_with($attendee->ID(), $attendee);
-            // maybe cache primary_attendee_obj ?
-            if ($registration->is_primary_registrant()) {
-                $this->primary_attendee_obj = $attendee;
-            }
-        }
-    }
-
-
-    /**
-     * _refresh_registration_answers
-     *
-     * @param    EE_Registration $registration
-     * @return void
-     * @throws \EE_Error
-     */
-    protected function _refresh_registration_answers($registration)
-    {
-
-        // now update the answers
-        foreach ($registration->answers() as $cache_key => $answer) {
-            // verify object
-            if ($answer instanceof EE_Answer) {
-                if ($answer->ID()) {
-                    // make sure the cached answer is added to the model entity mapper
-                    $answer->get_model()->refresh_entity_map_with($answer->ID(), $answer);
-                }
-            } else {
-                EE_Error::add_error(
-                    __(
-                        'An invalid Answer object was discovered when attempting to update the model entity mapper.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        }
-    }
-
-
-    /**
-     *    __sleep
-     * to conserve db space, let's remove the reg_form and the EE_Checkout object from EE_SPCO_Reg_Step objects upon
-     * serialization EE_Checkout will handle the reimplementation of itself upon waking, but we won't bother with the
-     * reg form, because if needed, it will be regenerated anyways
-     *
-     * @return array
-     * @throws \EE_Error
-     */
-    public function __sleep()
-    {
-        if ($this->primary_attendee_obj instanceof EE_Attendee && $this->primary_attendee_obj->ID()) {
-            $this->primary_attendee_obj = $this->primary_attendee_obj->ID();
-        }        // remove the reg form and the checkout
-        if ($this->transaction instanceof EE_Transaction && $this->transaction->ID()) {
-            $this->transaction = $this->transaction->ID();
-        }        // remove the reg form and the checkout
-        return array_diff(array_keys(get_object_vars($this)), array('billing_form', 'registration_form'));
-    }
-
-
-    /**
-     *    __wakeup
-     * to conserve db space, we are removing the EE_Checkout object from EE_SPCO_Reg_Step objects upon serialization
-     * this will reinstate the EE_Checkout object on each EE_SPCO_Reg_Step object
-     */
-    public function __wakeup()
-    {
-        if (! $this->primary_attendee_obj instanceof EE_Attendee && absint($this->primary_attendee_obj) !== 0) {
-            // $this->primary_attendee_obj is actually just an ID, so use it to get the object from the db
-            $this->primary_attendee_obj = EEM_Attendee::instance()->get_one_by_ID($this->primary_attendee_obj);
-        }
-        if (! $this->transaction instanceof EE_Transaction && absint($this->transaction) !== 0) {
-            // $this->transaction is actually just an ID, so use it to get the object from the db
-            $this->transaction = EEM_Transaction::instance()->get_one_by_ID($this->transaction);
-        }
-        foreach ($this->reg_steps as $reg_step) {
-            $reg_step->checkout = $this;
-        }
-    }
-
-
-    /**
-     * debug
-     *
-     * @param string $class
-     * @param string $func
-     * @param string $line
-     * @param array  $info
-     * @param bool   $display_request
-     * @throws \EE_Error
-     */
-    public function log($class = '', $func = '', $line = '', $info = array(), $display_request = false)
-    {
-        $disabled = true;
-        if (WP_DEBUG && ! $disabled) {
-            $debug_data = get_option('EE_DEBUG_SPCO_' . EE_Session::instance()->id(), array());
-            $default_data = array(
-                $class                    => $func . '() : ' . $line,
-                'request->step'           => $this->step,
-                'request->action'         => $this->action,
-                'current_step->slug'      => $this->current_step instanceof EE_SPCO_Reg_Step ?
-                    $this->current_step->slug() : '',
-                'current_step->completed' => $this->current_step instanceof EE_SPCO_Reg_Step ?
-                    $this->current_step->completed() : '',
-                'txn_status_updated'      => $this->transaction->txn_status_updated(),
-                'reg_status_updated'      => $this->reg_status_updated,
-                'reg_url_link'            => $this->reg_url_link,
-                'REQ'                     => $display_request ? $_REQUEST : '',
-            );
-            if ($this->transaction instanceof EE_Transaction) {
-                $default_data['TXN_status'] = $this->transaction->status_ID();
-                $default_data['TXN_reg_steps'] = $this->transaction->reg_steps();
-                foreach ($this->transaction->registrations($this->reg_cache_where_params) as $REG_ID => $registration) {
-                    $default_data['registrations'][ $REG_ID ] = $registration->status_ID();
-                }
-                if ($this->transaction->ID()) {
-                    $TXN_ID = 'EE_Transaction: ' . $this->transaction->ID();
-                    // don't serialize objects
-                    $info = $this->_strip_objects($info);
-                    if (! isset($debug_data[ $TXN_ID ])) {
-                        $debug_data[ $TXN_ID ] = array();
-                    }
-                    $debug_data[ $TXN_ID ][ microtime() ] = array_merge(
-                        $default_data,
-                        $info
-                    );
-                    update_option('EE_DEBUG_SPCO_' . EE_Session::instance()->id(), $debug_data);
-                }
-            }
-        }
-    }
-
-
-    /**
-     * _strip_objects
-     *
-     * @param array $info
-     * @return array
-     */
-    public function _strip_objects($info = array())
-    {
-        foreach ((array) $info as $key => $value) {
-            if (is_array($value)) {
-                $info[ $key ] = $this->_strip_objects($value);
-            } elseif (is_object($value)) {
-                $object_class = get_class($value);
-                $info[ $object_class ] = array();
-                $info[ $object_class ]['ID'] = method_exists($value, 'ID') ? $value->ID() : 0;
-                if (method_exists($value, 'status')) {
-                    $info[ $object_class ]['status'] = $value->status();
-                } elseif (method_exists($value, 'status_ID')) {
-                    $info[ $object_class ]['status'] = $value->status_ID();
-                }
-                unset($info[ $key ]);
-            }
-        }
-        return (array) $info;
-    }
+	/**
+	 *    whether current request originated from the EE admin
+	 *
+	 * @type bool
+	 */
+	public $admin_request = false;
+
+	/**
+	 * whether returning to edit attendee information or to retry a payment
+	 *
+	 * @type bool
+	 */
+	public $revisit = false;
+
+	/**
+	 * whether the primary registrant is returning to edit attendee information or to retry a payment
+	 *
+	 * @type bool
+	 */
+	public $primary_revisit = false;
+
+	/**
+	 * is registration allowed to progress or halted for some reason such as failing to pass recaptcha?
+	 *
+	 * @type bool
+	 */
+	public $continue_reg = true;
+
+	/**
+	 * redirect to thank you page ?
+	 *
+	 * @type bool
+	 */
+	public $redirect = false;
+
+	/**
+	 * generate the reg form or not ?
+	 *
+	 * @type bool
+	 */
+	public $generate_reg_form = true;
+
+	/**
+	 * process a reg form submission or not ?
+	 *
+	 * @type bool
+	 */
+	public $process_form_submission = false;
+
+	/**
+	 * tracks whether the TXN status modified during this checkout
+	 *
+	 * @type bool
+	 */
+	public $txn_status_updated = false;
+
+	/**
+	 * only triggered to true after absolutely everything has finished.
+	 *
+	 * @type bool
+	 */
+	protected $exit_spco = false;
+
+	/**
+	 * tracks whether any of the TXN's Registrations statuses modified during this checkout
+	 * indexed by registration ID
+	 *
+	 * @type array
+	 */
+	protected $reg_status_updated = array();
+
+	/**
+	 * timestamp when redirected from Ticket Selector to the checkout
+	 *
+	 * @type int
+	 */
+	public $uts = 0;
+
+	/**
+	 * total number of tickets that were in the cart
+	 *
+	 * @type int
+	 */
+	public $total_ticket_count = 0;
+
+	/**
+	 * corresponds loosely to EE_Transaction::remaining()
+	 * but can be modified by SPCO
+	 *
+	 * @type float
+	 */
+	public $amount_owing = 0;
+
+	/**
+	 * the reg step slug from the incoming request
+	 *
+	 * @type string
+	 */
+	public $step = '';
+
+	/**
+	 * the reg step slug for a step being edited
+	 *
+	 * @type string
+	 */
+	public $edit_step = '';
+
+	/**
+	 * the action being performed on the current step
+	 *
+	 * @type string
+	 */
+	public $action = '';
+
+	/**
+	 * reg_url_link for a previously saved registration
+	 *
+	 * @type string
+	 */
+	public $reg_url_link = '';
+
+	/**
+	 * string slug for the payment method that was selected during the payment options step
+	 *
+	 * @type string
+	 */
+	public $selected_method_of_payment = '';
+
+	/**
+	 * base url for the site's registration checkout page - additional url params will be added to this
+	 *
+	 * @type string
+	 */
+	public $reg_page_base_url = '';
+
+	/**
+	 * base url for the site's registration cancelled page - additional url params will be added to this
+	 *
+	 * @type string
+	 */
+	public $cancel_page_url = '';
+
+	/**
+	 * base url for the site's thank you page - additional url params will be added to this
+	 *
+	 * @type string
+	 */
+	public $thank_you_page_url = '';
+
+	/**
+	 * base url for any redirects - additional url params will be added to this
+	 *
+	 * @type string
+	 */
+	public $redirect_url = '';
+
+	/**
+	 * form of POST data for use with off-site gateways
+	 *
+	 * @type string
+	 */
+	public $redirect_form = '';
+
+	/**
+	 * array of query where params to use when retrieving cached registrations from $this->checkout->transaction
+	 *
+	 * @type array
+	 */
+	public $reg_cache_where_params = array();
+
+	/**
+	 * a class for managing and creating the JSON encoded array of data that gets passed back to the client during AJAX
+	 * requests
+	 *
+	 * @type EE_SPCO_JSON_Response
+	 */
+	public $json_response;
+
+	/**
+	 * where we are going next in the reg process
+	 *
+	 * @type EE_SPCO_Reg_Step
+	 */
+	public $next_step;
+
+	/**
+	 * where we are in the reg process
+	 *
+	 * @type EE_SPCO_Reg_Step
+	 */
+	public $current_step;
+
+	/**
+	 *    $_cart - the current cart object
+	 *
+	 * @var EE_CART
+	 */
+	public $cart;
+
+	/**
+	 *    $_transaction - the current transaction object
+	 *
+	 * @var EE_Transaction
+	 */
+	public $transaction;
+
+	/**
+	 *    the related attendee object for the primary registrant
+	 *
+	 * @type EE_Attendee
+	 */
+	public $primary_attendee_obj;
+
+	/**
+	 *    $payment_method - the payment method object for the selected method of payment
+	 *
+	 * @type EE_Payment_Method
+	 */
+	public $payment_method;
+
+	/**
+	 *    $payment - if a payment was successfully made during the reg process,
+	 *    then here it is !!!
+	 *
+	 * @type EE_Payment
+	 */
+	public $payment;
+
+	/**
+	 *    if a payment method was selected that uses an on-site gateway, then this is the billing form
+	 *
+	 * @type EE_Billing_Info_Form | EE_Billing_Attendee_Info_Form
+	 */
+	public $billing_form;
+
+	/**
+	 *    the entire registration form composed of ALL of the subsections generated by the various reg steps
+	 *
+	 * @type EE_Form_Section_Proper
+	 */
+	public $registration_form;
+
+	/**
+	 * array of EE_SPCO_Reg_Step objects
+	 *
+	 * @type EE_SPCO_Reg_Step[]
+	 */
+	public $reg_steps = array();
+
+	/**
+	 * array of EE_Payment_Method objects
+	 *
+	 * @type EE_Payment_Method[]
+	 */
+	public $available_payment_methods = array();
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 */
+	public function __construct()
+	{
+		$this->reg_page_base_url = EE_Registry::instance()->CFG->core->reg_page_url();
+		$this->thank_you_page_url = EE_Registry::instance()->CFG->core->thank_you_page_url();
+		$this->cancel_page_url = EE_Registry::instance()->CFG->core->cancel_page_url();
+		$this->continue_reg = apply_filters('FHEE__EE_Checkout___construct___continue_reg', true);
+		$this->admin_request = is_admin() && ! EE_Registry::instance()->REQ->ajax;
+		$this->reg_cache_where_params = array(
+			0          => array('REG_deleted' => false),
+			'order_by' => array('REG_count' => 'ASC'),
+		);
+	}
+
+
+	/**
+	 * returns true if ANY reg status was updated during checkout
+	 *
+	 * @return boolean
+	 */
+	public function any_reg_status_updated()
+	{
+		foreach ($this->reg_status_updated as $reg_status) {
+			if ($reg_status) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+
+	/**
+	 * @param $REG_ID
+	 * @return boolean
+	 */
+	public function reg_status_updated($REG_ID)
+	{
+		return isset($this->reg_status_updated[ $REG_ID ]) ? $this->reg_status_updated[ $REG_ID ] : false;
+	}
+
+
+	/**
+	 * @param $REG_ID
+	 * @param $reg_status
+	 */
+	public function set_reg_status_updated($REG_ID, $reg_status)
+	{
+		$this->reg_status_updated[ $REG_ID ] = filter_var($reg_status, FILTER_VALIDATE_BOOLEAN);
+	}
+
+
+	/**
+	 * exit_spco
+	 *
+	 * @return bool
+	 */
+	public function exit_spco()
+	{
+		return $this->exit_spco;
+	}
+
+
+	/**
+	 * set_exit_spco
+	 * can ONLY be set by the  Finalize_Registration reg step
+	 */
+	public function set_exit_spco()
+	{
+		if ($this->current_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
+			$this->exit_spco = true;
+		}
+	}
+
+
+	/**
+	 *    reset_for_current_request
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function reset_for_current_request()
+	{
+		$this->process_form_submission = false;
+		$this->continue_reg = apply_filters('FHEE__EE_Checkout___construct___continue_reg', true);
+		$this->admin_request = is_admin() && ! EE_Registry::instance()->REQ->front_ajax;
+		$this->continue_reg = true;
+		$this->redirect = false;
+		// don't reset the cached redirect form if we're about to be asked to display it !!!
+		if (EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step') !== 'redirect_form') {
+			$this->redirect_form = '';
+		}
+		$this->redirect_url = '';
+		$this->json_response = new EE_SPCO_JSON_Response();
+		EE_Form_Section_Proper::reset_js_localization();
+	}
+
+
+	/**
+	 *    add_reg_step
+	 *
+	 * @access    public
+	 * @param EE_SPCO_Reg_Step $reg_step_obj
+	 * @return    void
+	 */
+	public function add_reg_step(EE_SPCO_Reg_Step $reg_step_obj)
+	{
+		$this->reg_steps[ $reg_step_obj->slug() ] = $reg_step_obj;
+	}
+
+
+	/**
+	 * skip_reg_step
+	 * if the current reg step does not need to run for some reason,
+	 * then this will advance SPCO to the next reg step,
+	 * and mark the skipped step as completed
+	 *
+	 * @access    public
+	 * @param string $reg_step_slug
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	public function skip_reg_step($reg_step_slug = '')
+	{
+		$step_to_skip = $this->find_reg_step($reg_step_slug);
+		if ($step_to_skip instanceof EE_SPCO_Reg_Step && $step_to_skip->is_current_step()) {
+			$step_to_skip->set_is_current_step(false);
+			$step_to_skip->set_completed();
+			// advance to the next step
+			$this->set_current_step($this->next_step->slug());
+			// also reset the step param in the request in case any other code references that directly
+			EE_Registry::instance()->REQ->set('step', $this->current_step->slug());
+			// since we are skipping a step and setting the current step to be what was previously the next step,
+			// we need to check that the next step is now correct, and not still set to the current step.
+			if ($this->current_step->slug() === $this->next_step->slug()) {
+				// correctly setup the next step
+				$this->set_next_step();
+			}
+			$this->set_reg_step_initiated($this->current_step);
+		}
+	}
+
+
+	/**
+	 *    remove_reg_step
+	 *
+	 * @access    public
+	 * @param string $reg_step_slug
+	 * @param bool   $reset whether to reset reg steps after removal
+	 * @throws EE_Error
+	 */
+	public function remove_reg_step($reg_step_slug = '', $reset = true)
+	{
+		unset($this->reg_steps[ $reg_step_slug ]);
+		if ($this->transaction instanceof EE_Transaction) {
+			// now remove reg step from TXN and save
+			$this->transaction->remove_reg_step($reg_step_slug);
+			$this->transaction->save();
+		}
+		if ($reset) {
+			$this->reset_reg_steps();
+		}
+	}
+
+
+	/**
+	 *    set_reg_step_order
+	 *
+	 * @access    public
+	 * @param string $reg_step_slug
+	 * @param int    $order
+	 * @return    void
+	 */
+	public function set_reg_step_order($reg_step_slug = '', $order = 100)
+	{
+		if (isset($this->reg_steps[ $reg_step_slug ])) {
+			$this->reg_steps[ $reg_step_slug ]->set_order($order);
+		}
+	}
+
+
+	/**
+	 *    set_current_step
+	 *
+	 * @access    public
+	 * @param string $current_step
+	 * @return    void
+	 */
+	public function set_current_step($current_step)
+	{
+		// grab what step we're on
+		$this->current_step = isset($this->reg_steps[ $current_step ])
+			? $this->reg_steps[ $current_step ]
+			: reset(
+				$this->reg_steps
+			);
+		// verify instance
+		if ($this->current_step instanceof EE_SPCO_Reg_Step) {
+			// we don't want to repeat completed steps if this is the first time through SPCO
+			if ($this->continue_reg && ! $this->revisit && $this->current_step->completed()) {
+				// so advance to the next step
+				$this->set_next_step();
+				if ($this->next_step instanceof EE_SPCO_Reg_Step) {
+					// and attempt to set it as the current step
+					$this->set_current_step($this->next_step->slug());
+				}
+				return;
+			}
+			$this->current_step->set_is_current_step(true);
+		} else {
+			EE_Error::add_error(
+				__('The current step could not be set.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+	}
+
+
+	/**
+	 *    set_next_step
+	 * advances the reg_steps array pointer and sets the next step, then reverses pointer back to the current step
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public function set_next_step()
+	{
+		// set pointer to start of array
+		reset($this->reg_steps);
+		// if there is more than one step
+		if (count($this->reg_steps) > 1) {
+			// advance to the current step and set pointer
+			while (key($this->reg_steps) !== $this->current_step->slug() && key($this->reg_steps) !== '') {
+				next($this->reg_steps);
+			}
+		}
+		// advance one more spot ( if it exists )
+		$this->next_step = next($this->reg_steps);
+		// verify instance
+		$this->next_step = $this->next_step instanceof EE_SPCO_Reg_Step ? $this->next_step : null;
+		// then back to current step to reset
+		prev($this->reg_steps);
+	}
+
+
+	/**
+	 *    get_next_reg_step
+	 *    this simply returns the next step from reg_steps array
+	 *
+	 * @access    public
+	 * @return    EE_SPCO_Reg_Step | null
+	 */
+	public function get_next_reg_step()
+	{
+		$next = next($this->reg_steps);
+		prev($this->reg_steps);
+		return $next instanceof EE_SPCO_Reg_Step ? $next : null;
+	}
+
+
+	/**
+	 * get_prev_reg_step
+	 *    this simply returns the previous step from reg_steps array
+	 *
+	 * @access    public
+	 * @return    EE_SPCO_Reg_Step | null
+	 */
+	public function get_prev_reg_step()
+	{
+		$prev = prev($this->reg_steps);
+		next($this->reg_steps);
+		return $prev instanceof EE_SPCO_Reg_Step ? $prev : null;
+	}
+
+
+	/**
+	 * sort_reg_steps
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function sort_reg_steps()
+	{
+		$reg_step_sorting_callback = apply_filters(
+			'FHEE__EE_Checkout__sort_reg_steps__reg_step_sorting_callback',
+			'reg_step_sorting_callback'
+		);
+		uasort($this->reg_steps, array($this, $reg_step_sorting_callback));
+	}
+
+
+	/**
+	 * find_reg_step
+	 * finds a reg step by the given slug
+	 *
+	 * @access    public
+	 * @param string $reg_step_slug
+	 * @return EE_SPCO_Reg_Step|null
+	 */
+	public function find_reg_step($reg_step_slug = '')
+	{
+		if (! empty($reg_step_slug)) {
+			// copy reg step array
+			$reg_steps = $this->reg_steps;
+			// set pointer to start of array
+			reset($reg_steps);
+			// if there is more than one step
+			if (count($reg_steps) > 1) {
+				// advance to the current step and set pointer
+				while (key($reg_steps) !== $reg_step_slug && key($reg_steps) !== '') {
+					next($reg_steps);
+				}
+				return current($reg_steps);
+			}
+		}
+		return null;
+	}
+
+
+	/**
+	 * reg_step_sorting_callback
+	 *
+	 * @access public
+	 * @param EE_SPCO_Reg_Step $reg_step_A
+	 * @param EE_SPCO_Reg_Step $reg_step_B
+	 * @return int
+	 */
+	public function reg_step_sorting_callback(EE_SPCO_Reg_Step $reg_step_A, EE_SPCO_Reg_Step $reg_step_B)
+	{
+		// send finalize_registration step to the end of the array
+		if ($reg_step_A->slug() === 'finalize_registration') {
+			return 1;
+		} elseif ($reg_step_B->slug() === 'finalize_registration') {
+			return -1;
+		}
+		if ($reg_step_A->order() === $reg_step_B->order()) {
+			return 0;
+		}
+		return ($reg_step_A->order() > $reg_step_B->order()) ? 1 : -1;
+	}
+
+
+	/**
+	 * set_reg_step_initiated
+	 *
+	 * @access    public
+	 * @param    EE_SPCO_Reg_Step $reg_step
+	 * @throws \EE_Error
+	 */
+	public function set_reg_step_initiated(EE_SPCO_Reg_Step $reg_step)
+	{
+		// call set_reg_step_initiated ???
+		if (// first time visiting SPCO ?
+			! $this->revisit
+			&& (
+				// and displaying the reg step form for the first time ?
+				$this->action === 'display_spco_reg_step'
+				// or initializing the final step
+				|| $reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration
+			)
+		) {
+			// set the start time for this reg step
+			if (! $this->transaction->set_reg_step_initiated($reg_step->slug())) {
+				if (WP_DEBUG) {
+					EE_Error::add_error(
+						sprintf(
+							__('The "%1$s" registration step was not initialized properly.', 'event_espresso'),
+							$reg_step->name()
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			}
+		}
+	}
+
+
+	/**
+	 *    set_reg_step_JSON_info
+	 *
+	 * @access public
+	 * @return    void
+	 */
+	public function set_reg_step_JSON_info()
+	{
+		EE_Registry::$i18n_js_strings['reg_steps'] = array();
+		// pass basic reg step data to JS
+		foreach ($this->reg_steps as $reg_step) {
+			EE_Registry::$i18n_js_strings['reg_steps'][] = $reg_step->slug();
+		}
+		// reset reg step html
+		// $this->json_response->set_reg_step_html('');
+	}
+
+
+	/**
+	 *    reset_reg_steps
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function reset_reg_steps()
+	{
+		$this->sort_reg_steps();
+		$this->set_current_step(EE_Registry::instance()->REQ->get('step'));
+		$this->set_next_step();
+		// the text that appears on the reg step form submit button
+		$this->current_step->set_submit_button_text();
+		$this->set_reg_step_JSON_info();
+	}
+
+
+	/**
+	 *    get_registration_time_limit
+	 *
+	 * @access    public
+	 * @return        string
+	 */
+	public function get_registration_time_limit()
+	{
+
+		$registration_time_limit = (float) (EE_Registry::instance()->SSN->expiration() - time());
+		$time_limit_format = $registration_time_limit > 60 * MINUTE_IN_SECONDS ? 'H:i:s' : 'i:s';
+		$registration_time_limit = date($time_limit_format, $registration_time_limit);
+		return apply_filters(
+			'FHEE__EE_Checkout__get_registration_time_limit__registration_time_limit',
+			$registration_time_limit
+		);
+	}
+
+
+	/**
+	 * payment_required
+	 *
+	 * @return boolean
+	 */
+	public function payment_required()
+	{
+		// if NOT:
+		//     registration via admin
+		//      completed TXN
+		//      overpaid TXN
+		//      free TXN(total = 0.00)
+		//      then payment required is TRUE
+		return ! ($this->admin_request
+				  || $this->transaction->is_completed()
+				  || $this->transaction->is_overpaid()
+				  || $this->transaction->is_free()) ? true : false;
+	}
+
+
+	/**
+	 * get_cart_for_transaction
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	public function get_cart_for_transaction($transaction)
+	{
+		$session = EE_Registry::instance()->load_core('Session');
+		$cart = $transaction instanceof EE_Transaction ? EE_Cart::get_cart_from_txn($transaction, $session) : null;
+		// verify cart
+		if (! $cart instanceof EE_Cart) {
+			$cart = EE_Registry::instance()->load_core('Cart');
+		}
+
+		return $cart;
+	}
+
+
+	/**
+	 *    initialize_txn_reg_steps_array
+	 *
+	 * @access public
+	 * @return    array
+	 */
+	public function initialize_txn_reg_steps_array()
+	{
+		$txn_reg_steps_array = array();
+		foreach ($this->reg_steps as $reg_step) {
+			$txn_reg_steps_array[ $reg_step->slug() ] = false;
+		}
+		return $txn_reg_steps_array;
+	}
+
+
+	/**
+	 *    update_txn_reg_steps_array
+	 *
+	 * @access public
+	 * @return    bool
+	 * @throws \EE_Error
+	 */
+	public function update_txn_reg_steps_array()
+	{
+		$updated = false;
+		foreach ($this->reg_steps as $reg_step) {
+			if ($reg_step->completed()) {
+				$updated = $this->transaction->set_reg_step_completed($reg_step->slug())
+					? true
+					: $updated;
+			}
+		}
+		if ($updated) {
+			$this->transaction->save();
+		}
+		return $updated;
+	}
+
+
+	/**
+	 *    stash_transaction_and_checkout
+	 *
+	 * @access public
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	public function stash_transaction_and_checkout()
+	{
+		if (! $this->revisit) {
+			$this->update_txn_reg_steps_array();
+		}
+		$this->track_transaction_and_registration_status_updates();
+		// save all data to the db, but suppress errors
+		// $this->save_all_data( FALSE );
+		// cache the checkout in the session
+		EE_Registry::instance()->SSN->set_checkout($this);
+	}
+
+
+	/**
+	 *    track_transaction_and_registration_status_updates
+	 *    stores whether any updates were made to the TXN or it's related registrations
+	 *
+	 * @access public
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	public function track_transaction_and_registration_status_updates()
+	{
+		// verify the transaction
+		if ($this->transaction instanceof EE_Transaction) {
+			// has there been a TXN status change during this checkout?
+			$this->txn_status_updated = $this->transaction->txn_status_updated();
+			/** @type EE_Registration_Processor $registration_processor */
+			$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+			// grab the saved registrations from the transaction
+			foreach ($this->transaction->registrations($this->reg_cache_where_params) as $registration) {
+				if ($registration_processor->reg_status_updated($registration->ID())) {
+					$this->set_reg_status_updated($registration->ID(), true);
+				}
+			}
+		}
+	}
+
+
+	/**
+	 *    visit_allows_processing_of_this_registration
+	 *    determines if the current SPCO visit should allow the passed EE_Registration to be used in processing.
+	 *    one of the following conditions must be met:
+	 *        EITHER:    A) first time thru SPCO -> process ALL registrations ( NOT a revisit )
+	 *        OR :        B) primary registrant is editing info -> process ALL registrations ( primary_revisit )
+	 *        OR :        C) another registrant is editing info -> ONLY process their registration ( revisit AND their
+	 *        reg_url_link matches )
+	 *
+	 * @access public
+	 * @param    EE_Registration $registration
+	 * @return    bool
+	 * @throws \EE_Error
+	 */
+	public function visit_allows_processing_of_this_registration(EE_Registration $registration)
+	{
+		return ! $this->revisit
+			   || $this->primary_revisit
+			   || (
+				   $this->revisit && $this->reg_url_link === $registration->reg_url_link()
+			   )
+			? true
+			: false;
+	}
+
+
+	/**
+	 *    _transaction_has_primary_registration
+	 *
+	 * @access        private
+	 * @return        bool
+	 */
+	public function transaction_has_primary_registrant()
+	{
+		return $this->primary_attendee_obj instanceof EE_Attendee ? true : false;
+	}
+
+
+	/**
+	 *    save_all_data
+	 *    simply loops through the current transaction and saves all data for each registration
+	 *
+	 * @access public
+	 * @param bool $show_errors
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function save_all_data($show_errors = true)
+	{
+		// verify the transaction
+		if ($this->transaction instanceof EE_Transaction) {
+			// save to ensure that TXN has ID
+			$this->transaction->save();
+			// grab the saved registrations from the transaction
+			foreach ($this->transaction->registrations($this->reg_cache_where_params) as $registration) {
+				$this->_save_registration($registration, $show_errors);
+			}
+		} else {
+			if ($show_errors) {
+				EE_Error::add_error(
+					__(
+						'A valid Transaction was not found when attempting to save your registration information.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * _save_registration_attendee
+	 *
+	 * @param    EE_Registration $registration
+	 * @param bool               $show_errors
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private function _save_registration($registration, $show_errors = true)
+	{
+		// verify object
+		if ($registration instanceof EE_Registration) {
+			// should this registration be processed during this visit ?
+			if ($this->visit_allows_processing_of_this_registration($registration)) {
+				// set TXN ID
+				if (! $registration->transaction_ID()) {
+					$registration->set_transaction_id($this->transaction->ID());
+				}
+				// verify and save the attendee
+				$this->_save_registration_attendee($registration, $show_errors);
+				// save answers to reg form questions
+				$this->_save_registration_answers($registration, $show_errors);
+				// save changes
+				$registration->save();
+				// update txn cache
+				if (! $this->transaction->update_cache_after_object_save('Registration', $registration)) {
+					if ($show_errors) {
+						EE_Error::add_error(
+							__(
+								'The newly saved Registration object could not be cached on the Transaction.',
+								'event_espresso'
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+					}
+				}
+			}
+		} else {
+			if ($show_errors) {
+				EE_Error::add_error(
+					__(
+						'An invalid Registration object was discovered when attempting to save your registration information.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		}
+	}
+
+
+	/**
+	 * _save_registration_attendee
+	 *
+	 * @param    EE_Registration $registration
+	 * @param bool               $show_errors
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private function _save_registration_attendee($registration, $show_errors = true)
+	{
+		if ($registration->attendee() instanceof EE_Attendee) {
+			// save so that ATT has ID
+			$registration->attendee()->save();
+			if (! $registration->update_cache_after_object_save('Attendee', $registration->attendee())) {
+				if ($show_errors) {
+					EE_Error::add_error(
+						__(
+							'The newly saved Attendee object could not be cached on the registration.',
+							'event_espresso'
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			}
+		} else {
+			if ($show_errors) {
+				EE_Error::add_error(
+					sprintf(
+						'%1$s||%1$s $attendee = %2$s',
+						__(
+							'Either no Attendee information was found, or an invalid Attendee object was discovered when attempting to save your registration information.',
+							'event_espresso'
+						),
+						var_export($registration->attendee(), true)
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		}
+	}
+
+
+	/**
+	 * _save_question_answers
+	 *
+	 * @param    EE_Registration $registration
+	 * @param bool               $show_errors
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private function _save_registration_answers($registration, $show_errors = true)
+	{
+		// now save the answers
+		foreach ($registration->answers() as $cache_key => $answer) {
+			// verify object
+			if ($answer instanceof EE_Answer) {
+				$answer->set_registration($registration->ID());
+				$answer->save();
+				if (! $registration->update_cache_after_object_save('Answer', $answer, $cache_key)) {
+					if ($show_errors) {
+						EE_Error::add_error(
+							__(
+								'The newly saved Answer object could not be cached on the registration.',
+								'event_espresso'
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+					}
+				}
+			} else {
+				if ($show_errors) {
+					EE_Error::add_error(
+						__(
+							'An invalid Answer object was discovered when attempting to save your registration information.',
+							'event_espresso'
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			}
+		}
+	}
+
+
+	/**
+	 *    refresh_all_entities
+	 *   will either refresh the entity map with objects form the db or from the checkout cache
+	 *
+	 * @access public
+	 * @param bool $from_db
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function refresh_all_entities($from_db = false)
+	{
+		$from_db = $this->current_step->is_final_step() || $this->action === 'process_gateway_response'
+			? true
+			: $from_db;
+		// $this->log(
+		//     __CLASS__,
+		//     __FUNCTION__,
+		//     __LINE__,
+		//     array('from_db' => $from_db)
+		// );
+		return $from_db ? $this->refresh_from_db() : $this->refresh_entity_map();
+	}
+
+
+	/**
+	 *  refresh_entity_map
+	 *  simply loops through the current transaction and updates each
+	 *  model's entity map using EEM_Base::refresh_entity_map_from_db()
+	 *
+	 * @access public
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	protected function refresh_from_db()
+	{
+		// verify the transaction
+		if ($this->transaction instanceof EE_Transaction && $this->transaction->ID()) {
+			// pull fresh TXN data from the db
+			$this->transaction = $this->transaction->get_model()->refresh_entity_map_from_db($this->transaction->ID());
+			// update EE_Checkout's cached primary_attendee object
+			$this->primary_attendee_obj = $this->_refresh_primary_attendee_obj_from_db($this->transaction);
+			// update EE_Checkout's cached payment object
+			$payment = $this->transaction->last_payment();
+			$this->payment = $payment instanceof EE_Payment ? $payment : $this->payment;
+			// update EE_Checkout's cached payment_method object
+			$payment_method = $this->payment instanceof EE_Payment ? $this->payment->payment_method() : null;
+			$this->payment_method = $payment_method instanceof EE_Payment_Method ? $payment_method
+				: $this->payment_method;
+			// now refresh the cart, based on the TXN
+			$this->cart = $this->get_cart_for_transaction($this->transaction);
+		} else {
+			EE_Error::add_error(
+				__(
+					'A valid Transaction was not found when attempting to update the model entity mapper.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * _refresh_primary_attendee_obj_from_db
+	 *
+	 * @param   EE_Transaction $transaction
+	 * @return  EE_Attendee | null
+	 * @throws \EE_Error
+	 */
+	protected function _refresh_primary_attendee_obj_from_db(EE_Transaction $transaction)
+	{
+
+		$primary_attendee_obj = null;
+		// grab the saved registrations from the transaction
+		foreach ($transaction->registrations($this->reg_cache_where_params, true) as $registration) {
+			// verify object
+			if ($registration instanceof EE_Registration) {
+				$attendee = $registration->attendee();
+				// verify object && maybe cache primary_attendee_obj ?
+				if ($attendee instanceof EE_Attendee && $registration->is_primary_registrant()) {
+					$primary_attendee_obj = $attendee;
+				}
+			} else {
+				EE_Error::add_error(
+					__(
+						'An invalid Registration object was discovered when attempting to update the model entity mapper.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		}
+		return $primary_attendee_obj;
+	}
+
+
+	/**
+	 *  refresh_entity_map
+	 *  simply loops through the current transaction and updates
+	 *  each model's entity map using EEM_Base::refresh_entity_map_with()
+	 *
+	 * @access public
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	protected function refresh_entity_map()
+	{
+		// verify the transaction
+		if ($this->transaction instanceof EE_Transaction && $this->transaction->ID()) {
+			// never cache payment info
+			$this->transaction->clear_cache('Payment');
+			// is the Payment Options Reg Step completed ?
+			if ($this->transaction->reg_step_completed('payment_options')) {
+				// then check for payments and update TXN accordingly
+				/** @type EE_Transaction_Payments $transaction_payments */
+				$transaction_payments = EE_Registry::instance()->load_class('Transaction_Payments');
+				$transaction_payments->calculate_total_payments_and_update_status($this->transaction);
+			}
+			// grab the saved registrations from the transaction
+			foreach ($this->transaction->registrations($this->reg_cache_where_params) as $reg_cache_ID => $registration) {
+				$this->_refresh_registration($reg_cache_ID, $registration);
+			}
+			// make sure our cached TXN is added to the model entity mapper
+			$this->transaction = $this->transaction->get_model()->refresh_entity_map_with(
+				$this->transaction->ID(),
+				$this->transaction
+			);
+		} else {
+			EE_Error::add_error(
+				__(
+					'A valid Transaction was not found when attempting to update the model entity mapper.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// verify and update the cart because inaccurate totals are not so much fun
+		if ($this->cart instanceof EE_Cart) {
+			$grand_total = $this->cart->get_grand_total();
+			if ($grand_total instanceof EE_Line_Item && $grand_total->ID()) {
+				$grand_total->recalculate_total_including_taxes();
+				$grand_total = $grand_total->get_model()->refresh_entity_map_with(
+					$this->cart->get_grand_total()->ID(),
+					$this->cart->get_grand_total()
+				);
+			}
+			if ($grand_total instanceof EE_Line_Item) {
+				$this->cart = EE_Cart::instance($grand_total);
+			} else {
+				EE_Error::add_error(
+					__(
+						'A valid Cart was not found when attempting to update the model entity mapper.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+		}
+		return true;
+	}
+
+
+	/**
+	 * _refresh_registration
+	 *
+	 * @param    string | int    $reg_cache_ID
+	 * @param    EE_Registration $registration
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	protected function _refresh_registration($reg_cache_ID, $registration)
+	{
+
+		// verify object
+		if ($registration instanceof EE_Registration) {
+			// update the entity mapper attendee
+			$this->_refresh_registration_attendee($registration);
+			// update the entity mapper answers for reg form questions
+			$this->_refresh_registration_answers($registration);
+			// make sure the cached registration is added to the model entity mapper
+			$registration->get_model()->refresh_entity_map_with($reg_cache_ID, $registration);
+		} else {
+			EE_Error::add_error(
+				__(
+					'An invalid Registration object was discovered when attempting to update the model entity mapper.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+	}
+
+
+	/**
+	 * _save_registration_attendee
+	 *
+	 * @param    EE_Registration $registration
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	protected function _refresh_registration_attendee($registration)
+	{
+
+		$attendee = $registration->attendee();
+		// verify object
+		if ($attendee instanceof EE_Attendee && $attendee->ID()) {
+			// make sure the cached attendee is added to the model entity mapper
+			$registration->attendee()->get_model()->refresh_entity_map_with($attendee->ID(), $attendee);
+			// maybe cache primary_attendee_obj ?
+			if ($registration->is_primary_registrant()) {
+				$this->primary_attendee_obj = $attendee;
+			}
+		}
+	}
+
+
+	/**
+	 * _refresh_registration_answers
+	 *
+	 * @param    EE_Registration $registration
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	protected function _refresh_registration_answers($registration)
+	{
+
+		// now update the answers
+		foreach ($registration->answers() as $cache_key => $answer) {
+			// verify object
+			if ($answer instanceof EE_Answer) {
+				if ($answer->ID()) {
+					// make sure the cached answer is added to the model entity mapper
+					$answer->get_model()->refresh_entity_map_with($answer->ID(), $answer);
+				}
+			} else {
+				EE_Error::add_error(
+					__(
+						'An invalid Answer object was discovered when attempting to update the model entity mapper.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		}
+	}
+
+
+	/**
+	 *    __sleep
+	 * to conserve db space, let's remove the reg_form and the EE_Checkout object from EE_SPCO_Reg_Step objects upon
+	 * serialization EE_Checkout will handle the reimplementation of itself upon waking, but we won't bother with the
+	 * reg form, because if needed, it will be regenerated anyways
+	 *
+	 * @return array
+	 * @throws \EE_Error
+	 */
+	public function __sleep()
+	{
+		if ($this->primary_attendee_obj instanceof EE_Attendee && $this->primary_attendee_obj->ID()) {
+			$this->primary_attendee_obj = $this->primary_attendee_obj->ID();
+		}        // remove the reg form and the checkout
+		if ($this->transaction instanceof EE_Transaction && $this->transaction->ID()) {
+			$this->transaction = $this->transaction->ID();
+		}        // remove the reg form and the checkout
+		return array_diff(array_keys(get_object_vars($this)), array('billing_form', 'registration_form'));
+	}
+
+
+	/**
+	 *    __wakeup
+	 * to conserve db space, we are removing the EE_Checkout object from EE_SPCO_Reg_Step objects upon serialization
+	 * this will reinstate the EE_Checkout object on each EE_SPCO_Reg_Step object
+	 */
+	public function __wakeup()
+	{
+		if (! $this->primary_attendee_obj instanceof EE_Attendee && absint($this->primary_attendee_obj) !== 0) {
+			// $this->primary_attendee_obj is actually just an ID, so use it to get the object from the db
+			$this->primary_attendee_obj = EEM_Attendee::instance()->get_one_by_ID($this->primary_attendee_obj);
+		}
+		if (! $this->transaction instanceof EE_Transaction && absint($this->transaction) !== 0) {
+			// $this->transaction is actually just an ID, so use it to get the object from the db
+			$this->transaction = EEM_Transaction::instance()->get_one_by_ID($this->transaction);
+		}
+		foreach ($this->reg_steps as $reg_step) {
+			$reg_step->checkout = $this;
+		}
+	}
+
+
+	/**
+	 * debug
+	 *
+	 * @param string $class
+	 * @param string $func
+	 * @param string $line
+	 * @param array  $info
+	 * @param bool   $display_request
+	 * @throws \EE_Error
+	 */
+	public function log($class = '', $func = '', $line = '', $info = array(), $display_request = false)
+	{
+		$disabled = true;
+		if (WP_DEBUG && ! $disabled) {
+			$debug_data = get_option('EE_DEBUG_SPCO_' . EE_Session::instance()->id(), array());
+			$default_data = array(
+				$class                    => $func . '() : ' . $line,
+				'request->step'           => $this->step,
+				'request->action'         => $this->action,
+				'current_step->slug'      => $this->current_step instanceof EE_SPCO_Reg_Step ?
+					$this->current_step->slug() : '',
+				'current_step->completed' => $this->current_step instanceof EE_SPCO_Reg_Step ?
+					$this->current_step->completed() : '',
+				'txn_status_updated'      => $this->transaction->txn_status_updated(),
+				'reg_status_updated'      => $this->reg_status_updated,
+				'reg_url_link'            => $this->reg_url_link,
+				'REQ'                     => $display_request ? $_REQUEST : '',
+			);
+			if ($this->transaction instanceof EE_Transaction) {
+				$default_data['TXN_status'] = $this->transaction->status_ID();
+				$default_data['TXN_reg_steps'] = $this->transaction->reg_steps();
+				foreach ($this->transaction->registrations($this->reg_cache_where_params) as $REG_ID => $registration) {
+					$default_data['registrations'][ $REG_ID ] = $registration->status_ID();
+				}
+				if ($this->transaction->ID()) {
+					$TXN_ID = 'EE_Transaction: ' . $this->transaction->ID();
+					// don't serialize objects
+					$info = $this->_strip_objects($info);
+					if (! isset($debug_data[ $TXN_ID ])) {
+						$debug_data[ $TXN_ID ] = array();
+					}
+					$debug_data[ $TXN_ID ][ microtime() ] = array_merge(
+						$default_data,
+						$info
+					);
+					update_option('EE_DEBUG_SPCO_' . EE_Session::instance()->id(), $debug_data);
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * _strip_objects
+	 *
+	 * @param array $info
+	 * @return array
+	 */
+	public function _strip_objects($info = array())
+	{
+		foreach ((array) $info as $key => $value) {
+			if (is_array($value)) {
+				$info[ $key ] = $this->_strip_objects($value);
+			} elseif (is_object($value)) {
+				$object_class = get_class($value);
+				$info[ $object_class ] = array();
+				$info[ $object_class ]['ID'] = method_exists($value, 'ID') ? $value->ID() : 0;
+				if (method_exists($value, 'status')) {
+					$info[ $object_class ]['status'] = $value->status();
+				} elseif (method_exists($value, 'status_ID')) {
+					$info[ $object_class ]['status'] = $value->status_ID();
+				}
+				unset($info[ $key ]);
+			}
+		}
+		return (array) $info;
+	}
 }

Spacing +33 added lines, -33 removed lines

@@ -313,7 +313,7 @@ 
      */
     public function reg_status_updated($REG_ID)
     {
-        return isset($this->reg_status_updated[ $REG_ID ]) ? $this->reg_status_updated[ $REG_ID ] : false;
+        return isset($this->reg_status_updated[$REG_ID]) ? $this->reg_status_updated[$REG_ID] : false;
     }
 
 
@@ -323,7 +323,7 @@ 
      */
     public function set_reg_status_updated($REG_ID, $reg_status)
     {
-        $this->reg_status_updated[ $REG_ID ] = filter_var($reg_status, FILTER_VALIDATE_BOOLEAN);
+        $this->reg_status_updated[$REG_ID] = filter_var($reg_status, FILTER_VALIDATE_BOOLEAN);
     }
 
 
@@ -382,7 +382,7 @@ 
      */
     public function add_reg_step(EE_SPCO_Reg_Step $reg_step_obj)
     {
-        $this->reg_steps[ $reg_step_obj->slug() ] = $reg_step_obj;
+        $this->reg_steps[$reg_step_obj->slug()] = $reg_step_obj;
     }
 
 
@@ -428,7 +428,7 @@ 
      */
     public function remove_reg_step($reg_step_slug = '', $reset = true)
     {
-        unset($this->reg_steps[ $reg_step_slug ]);
+        unset($this->reg_steps[$reg_step_slug]);
         if ($this->transaction instanceof EE_Transaction) {
             // now remove reg step from TXN and save
             $this->transaction->remove_reg_step($reg_step_slug);
@@ -450,8 +450,8 @@ 
      */
     public function set_reg_step_order($reg_step_slug = '', $order = 100)
     {
-        if (isset($this->reg_steps[ $reg_step_slug ])) {
-            $this->reg_steps[ $reg_step_slug ]->set_order($order);
+        if (isset($this->reg_steps[$reg_step_slug])) {
+            $this->reg_steps[$reg_step_slug]->set_order($order);
         }
     }
 
@@ -466,8 +466,8 @@ 
     public function set_current_step($current_step)
     {
         // grab what step we're on
-        $this->current_step = isset($this->reg_steps[ $current_step ])
-            ? $this->reg_steps[ $current_step ]
+        $this->current_step = isset($this->reg_steps[$current_step])
+            ? $this->reg_steps[$current_step]
             : reset(
                 $this->reg_steps
             );
@@ -578,7 +578,7 @@ 
      */
     public function find_reg_step($reg_step_slug = '')
     {
-        if (! empty($reg_step_slug)) {
+        if ( ! empty($reg_step_slug)) {
             // copy reg step array
             $reg_steps = $this->reg_steps;
             // set pointer to start of array
@@ -639,7 +639,7 @@ 
             )
         ) {
             // set the start time for this reg step
-            if (! $this->transaction->set_reg_step_initiated($reg_step->slug())) {
+            if ( ! $this->transaction->set_reg_step_initiated($reg_step->slug())) {
                 if (WP_DEBUG) {
                     EE_Error::add_error(
                         sprintf(
@@ -742,7 +742,7 @@ 
         $session = EE_Registry::instance()->load_core('Session');
         $cart = $transaction instanceof EE_Transaction ? EE_Cart::get_cart_from_txn($transaction, $session) : null;
         // verify cart
-        if (! $cart instanceof EE_Cart) {
+        if ( ! $cart instanceof EE_Cart) {
             $cart = EE_Registry::instance()->load_core('Cart');
         }
 
@@ -760,7 +760,7 @@ 
     {
         $txn_reg_steps_array = array();
         foreach ($this->reg_steps as $reg_step) {
-            $txn_reg_steps_array[ $reg_step->slug() ] = false;
+            $txn_reg_steps_array[$reg_step->slug()] = false;
         }
         return $txn_reg_steps_array;
     }
@@ -799,7 +799,7 @@ 
      */
     public function stash_transaction_and_checkout()
     {
-        if (! $this->revisit) {
+        if ( ! $this->revisit) {
             $this->update_txn_reg_steps_array();
         }
         $this->track_transaction_and_registration_status_updates();
@@ -926,7 +926,7 @@ 
             // should this registration be processed during this visit ?
             if ($this->visit_allows_processing_of_this_registration($registration)) {
                 // set TXN ID
-                if (! $registration->transaction_ID()) {
+                if ( ! $registration->transaction_ID()) {
                     $registration->set_transaction_id($this->transaction->ID());
                 }
                 // verify and save the attendee
@@ -936,7 +936,7 @@ 
                 // save changes
                 $registration->save();
                 // update txn cache
-                if (! $this->transaction->update_cache_after_object_save('Registration', $registration)) {
+                if ( ! $this->transaction->update_cache_after_object_save('Registration', $registration)) {
                     if ($show_errors) {
                         EE_Error::add_error(
                             __(
@@ -979,7 +979,7 @@ 
         if ($registration->attendee() instanceof EE_Attendee) {
             // save so that ATT has ID
             $registration->attendee()->save();
-            if (! $registration->update_cache_after_object_save('Attendee', $registration->attendee())) {
+            if ( ! $registration->update_cache_after_object_save('Attendee', $registration->attendee())) {
                 if ($show_errors) {
                     EE_Error::add_error(
                         __(
@@ -1028,7 +1028,7 @@ 
             if ($answer instanceof EE_Answer) {
                 $answer->set_registration($registration->ID());
                 $answer->save();
-                if (! $registration->update_cache_after_object_save('Answer', $answer, $cache_key)) {
+                if ( ! $registration->update_cache_after_object_save('Answer', $answer, $cache_key)) {
                     if ($show_errors) {
                         EE_Error::add_error(
                             __(
@@ -1349,11 +1349,11 @@ 
      */
     public function __wakeup()
     {
-        if (! $this->primary_attendee_obj instanceof EE_Attendee && absint($this->primary_attendee_obj) !== 0) {
+        if ( ! $this->primary_attendee_obj instanceof EE_Attendee && absint($this->primary_attendee_obj) !== 0) {
             // $this->primary_attendee_obj is actually just an ID, so use it to get the object from the db
             $this->primary_attendee_obj = EEM_Attendee::instance()->get_one_by_ID($this->primary_attendee_obj);
         }
-        if (! $this->transaction instanceof EE_Transaction && absint($this->transaction) !== 0) {
+        if ( ! $this->transaction instanceof EE_Transaction && absint($this->transaction) !== 0) {
             // $this->transaction is actually just an ID, so use it to get the object from the db
             $this->transaction = EEM_Transaction::instance()->get_one_by_ID($this->transaction);
         }
@@ -1377,9 +1377,9 @@ 
     {
         $disabled = true;
         if (WP_DEBUG && ! $disabled) {
-            $debug_data = get_option('EE_DEBUG_SPCO_' . EE_Session::instance()->id(), array());
+            $debug_data = get_option('EE_DEBUG_SPCO_'.EE_Session::instance()->id(), array());
             $default_data = array(
-                $class                    => $func . '() : ' . $line,
+                $class                    => $func.'() : '.$line,
                 'request->step'           => $this->step,
                 'request->action'         => $this->action,
                 'current_step->slug'      => $this->current_step instanceof EE_SPCO_Reg_Step ?
@@ -1395,20 +1395,20 @@ 
                 $default_data['TXN_status'] = $this->transaction->status_ID();
                 $default_data['TXN_reg_steps'] = $this->transaction->reg_steps();
                 foreach ($this->transaction->registrations($this->reg_cache_where_params) as $REG_ID => $registration) {
-                    $default_data['registrations'][ $REG_ID ] = $registration->status_ID();
+                    $default_data['registrations'][$REG_ID] = $registration->status_ID();
                 }
                 if ($this->transaction->ID()) {
-                    $TXN_ID = 'EE_Transaction: ' . $this->transaction->ID();
+                    $TXN_ID = 'EE_Transaction: '.$this->transaction->ID();
                     // don't serialize objects
                     $info = $this->_strip_objects($info);
-                    if (! isset($debug_data[ $TXN_ID ])) {
-                        $debug_data[ $TXN_ID ] = array();
+                    if ( ! isset($debug_data[$TXN_ID])) {
+                        $debug_data[$TXN_ID] = array();
                     }
-                    $debug_data[ $TXN_ID ][ microtime() ] = array_merge(
+                    $debug_data[$TXN_ID][microtime()] = array_merge(
                         $default_data,
                         $info
                     );
-                    update_option('EE_DEBUG_SPCO_' . EE_Session::instance()->id(), $debug_data);
+                    update_option('EE_DEBUG_SPCO_'.EE_Session::instance()->id(), $debug_data);
                 }
             }
         }
@@ -1425,17 +1425,17 @@ 
     {
         foreach ((array) $info as $key => $value) {
             if (is_array($value)) {
-                $info[ $key ] = $this->_strip_objects($value);
+                $info[$key] = $this->_strip_objects($value);
             } elseif (is_object($value)) {
                 $object_class = get_class($value);
-                $info[ $object_class ] = array();
-                $info[ $object_class ]['ID'] = method_exists($value, 'ID') ? $value->ID() : 0;
+                $info[$object_class] = array();
+                $info[$object_class]['ID'] = method_exists($value, 'ID') ? $value->ID() : 0;
                 if (method_exists($value, 'status')) {
-                    $info[ $object_class ]['status'] = $value->status();
+                    $info[$object_class]['status'] = $value->status();
                 } elseif (method_exists($value, 'status_ID')) {
-                    $info[ $object_class ]['status'] = $value->status_ID();
+                    $info[$object_class]['status'] = $value->status_ID();
                 }
-                unset($info[ $key ]);
+                unset($info[$key]);
             }
         }
         return (array) $info;

modules/single_page_checkout/reg_steps/payment_options/EE_SPCO_Reg_Step_Payment_Options.class.php

Indentation +2885 added lines, -2885 removed lines

@@ -12,2889 +12,2889 @@
 class EE_SPCO_Reg_Step_Payment_Options extends EE_SPCO_Reg_Step
 {
 
-    /**
-     * @access protected
-     * @var EE_Line_Item_Display $Line_Item_Display
-     */
-    protected $line_item_display;
-
-    /**
-     * @access protected
-     * @var boolean $handle_IPN_in_this_request
-     */
-    protected $handle_IPN_in_this_request = false;
-
-
-    /**
-     *    set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function set_hooks()
-    {
-        add_filter(
-            'FHEE__SPCO__EE_Line_Item_Filter_Collection',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'add_spco_line_item_filters')
-        );
-        add_action(
-            'wp_ajax_switch_spco_billing_form',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'switch_spco_billing_form')
-        );
-        add_action(
-            'wp_ajax_nopriv_switch_spco_billing_form',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'switch_spco_billing_form')
-        );
-        add_action('wp_ajax_save_payer_details', array('EE_SPCO_Reg_Step_Payment_Options', 'save_payer_details'));
-        add_action(
-            'wp_ajax_nopriv_save_payer_details',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'save_payer_details')
-        );
-        add_action(
-            'wp_ajax_get_transaction_details_for_gateways',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'get_transaction_details')
-        );
-        add_action(
-            'wp_ajax_nopriv_get_transaction_details_for_gateways',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'get_transaction_details')
-        );
-        add_filter(
-            'FHEE__EED_Recaptcha___bypass_recaptcha__bypass_request_params_array',
-            array('EE_SPCO_Reg_Step_Payment_Options', 'bypass_recaptcha_for_load_payment_method'),
-            10,
-            1
-        );
-    }
-
-
-    /**
-     *    ajax switch_spco_billing_form
-     *
-     * @throws \EE_Error
-     */
-    public static function switch_spco_billing_form()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('switch_payment_method');
-    }
-
-
-    /**
-     *    ajax save_payer_details
-     *
-     * @throws \EE_Error
-     */
-    public static function save_payer_details()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('save_payer_details_via_ajax');
-    }
-
-
-    /**
-     *    ajax get_transaction_details
-     *
-     * @throws \EE_Error
-     */
-    public static function get_transaction_details()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('get_transaction_details_for_gateways');
-    }
-
-
-    /**
-     * bypass_recaptcha_for_load_payment_method
-     *
-     * @access public
-     * @return array
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public static function bypass_recaptcha_for_load_payment_method()
-    {
-        return array(
-            'EESID'  => EE_Registry::instance()->SSN->id(),
-            'step'   => 'payment_options',
-            'action' => 'spco_billing_form',
-        );
-    }
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     * @param    EE_Checkout $checkout
-     */
-    public function __construct(EE_Checkout $checkout)
-    {
-        $this->_slug = 'payment_options';
-        $this->_name = esc_html__('Payment Options', 'event_espresso');
-        $this->_template = SPCO_REG_STEPS_PATH . $this->_slug . DS . 'payment_options_main.template.php';
-        $this->checkout = $checkout;
-        $this->_reset_success_message();
-        $this->set_instructions(
-            esc_html__(
-                'Please select a method of payment and provide any necessary billing information before proceeding.',
-                'event_espresso'
-            )
-        );
-    }
-
-
-    /**
-     * @return null
-     */
-    public function line_item_display()
-    {
-        return $this->line_item_display;
-    }
-
-
-    /**
-     * @param null $line_item_display
-     */
-    public function set_line_item_display($line_item_display)
-    {
-        $this->line_item_display = $line_item_display;
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function handle_IPN_in_this_request()
-    {
-        return $this->handle_IPN_in_this_request;
-    }
-
-
-    /**
-     * @param boolean $handle_IPN_in_this_request
-     */
-    public function set_handle_IPN_in_this_request($handle_IPN_in_this_request)
-    {
-        $this->handle_IPN_in_this_request = filter_var($handle_IPN_in_this_request, FILTER_VALIDATE_BOOLEAN);
-    }
-
-
-    /**
-     * translate_js_strings
-     *
-     * @return void
-     */
-    public function translate_js_strings()
-    {
-        EE_Registry::$i18n_js_strings['no_payment_method'] = esc_html__(
-            'Please select a method of payment in order to continue.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_payment_method'] = esc_html__(
-            'A valid method of payment could not be determined. Please refresh the page and try again.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['forwarding_to_offsite'] = esc_html__(
-            'Forwarding to Secure Payment Provider.',
-            'event_espresso'
-        );
-    }
-
-
-    /**
-     * enqueue_styles_and_scripts
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function enqueue_styles_and_scripts()
-    {
-        $transaction = $this->checkout->transaction;
-        // if the transaction isn't set or nothing is owed on it, don't enqueue any JS
-        if (! $transaction instanceof EE_Transaction || EEH_Money::compare_floats($transaction->remaining(), 0)) {
-            return;
-        }
-        foreach (EEM_Payment_Method::instance()->get_all_for_transaction(
-            $transaction,
-            EEM_Payment_Method::scope_cart
-        ) as $payment_method) {
-            $type_obj = $payment_method->type_obj();
-            if ($type_obj instanceof EE_PMT_Base) {
-                $billing_form = $type_obj->generate_new_billing_form($transaction);
-                if ($billing_form instanceof EE_Form_Section_Proper) {
-                    $billing_form->enqueue_js();
-                }
-            }
-        }
-    }
-
-
-    /**
-     * initialize_reg_step
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function initialize_reg_step()
-    {
-        // TODO: if /when we implement donations, then this will need overriding
-        if (// don't need payment options for:
-            // registrations made via the admin
-            // completed transactions
-            // overpaid transactions
-            // $ 0.00 transactions(no payment required)
-            ! $this->checkout->payment_required()
-            // but do NOT remove if current action being called belongs to this reg step
-            && ! is_callable(array($this, $this->checkout->action))
-            && ! $this->completed()
-        ) {
-            // and if so, then we no longer need the Payment Options step
-            if ($this->is_current_step()) {
-                $this->checkout->generate_reg_form = false;
-            }
-            $this->checkout->remove_reg_step($this->_slug);
-            // DEBUG LOG
-            // $this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
-            return false;
-        }
-        // load EEM_Payment_Method
-        EE_Registry::instance()->load_model('Payment_Method');
-        // get all active payment methods
-        $this->checkout->available_payment_methods = EEM_Payment_Method::instance()->get_all_for_transaction(
-            $this->checkout->transaction,
-            EEM_Payment_Method::scope_cart
-        );
-        return true;
-    }
-
-
-    /**
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidStatusException
-     */
-    public function generate_reg_form()
-    {
-        // reset in case someone changes their mind
-        $this->_reset_selected_method_of_payment();
-        // set some defaults
-        $this->checkout->selected_method_of_payment = 'payments_closed';
-        $registrations_requiring_payment = array();
-        $registrations_for_free_events = array();
-        $registrations_requiring_pre_approval = array();
-        $sold_out_events = array();
-        $insufficient_spaces_available = array();
-        $no_payment_required = true;
-        // loop thru registrations to gather info
-        $registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
-        $ejected_registrations = EE_SPCO_Reg_Step_Payment_Options::find_registrations_that_lost_their_space(
-            $registrations,
-            $this->checkout->revisit
-        );
-        foreach ($registrations as $REG_ID => $registration) {
-            /** @var $registration EE_Registration */
-            // has this registration lost it's space ?
-            if (isset($ejected_registrations[ $REG_ID ])) {
-                if ($registration->event()->is_sold_out() || $registration->event()->is_sold_out(true)) {
-                    $sold_out_events[ $registration->event()->ID() ] = $registration->event();
-                } else {
-                    $insufficient_spaces_available[ $registration->event()->ID() ] = $registration->event();
-                }
-                continue;
-            }
-            // event requires admin approval
-            if ($registration->status_ID() === EEM_Registration::status_id_not_approved) {
-                // add event to list of events with pre-approval reg status
-                $registrations_requiring_pre_approval[ $REG_ID ] = $registration;
-                do_action(
-                    'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__event_requires_pre_approval',
-                    $registration->event(),
-                    $this
-                );
-                continue;
-            }
-            if ($this->checkout->revisit
-                && $registration->status_ID() !== EEM_Registration::status_id_approved
-                && (
-                    $registration->event()->is_sold_out()
-                    || $registration->event()->is_sold_out(true)
-                )
-            ) {
-                // add event to list of events that are sold out
-                $sold_out_events[ $registration->event()->ID() ] = $registration->event();
-                do_action(
-                    'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__sold_out_event',
-                    $registration->event(),
-                    $this
-                );
-                continue;
-            }
-            // are they allowed to pay now and is there monies owing?
-            if ($registration->owes_monies_and_can_pay()) {
-                $registrations_requiring_payment[ $REG_ID ] = $registration;
-                do_action(
-                    'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__event_requires_payment',
-                    $registration->event(),
-                    $this
-                );
-            } elseif (! $this->checkout->revisit
-                      && $registration->status_ID() !== EEM_Registration::status_id_not_approved
-                      && $registration->ticket()->is_free()
-            ) {
-                $registrations_for_free_events[ $registration->event()->ID() ] = $registration;
-            }
-        }
-        $subsections = array();
-        // now decide which template to load
-        if (! empty($sold_out_events)) {
-            $subsections['sold_out_events'] = $this->_sold_out_events($sold_out_events);
-        }
-        if (! empty($insufficient_spaces_available)) {
-            $subsections['insufficient_space'] = $this->_insufficient_spaces_available(
-                $insufficient_spaces_available
-            );
-        }
-        if (! empty($registrations_requiring_pre_approval)) {
-            $subsections['registrations_requiring_pre_approval'] = $this->_registrations_requiring_pre_approval(
-                $registrations_requiring_pre_approval
-            );
-        }
-        if (! empty($registrations_for_free_events)) {
-            $subsections['no_payment_required'] = $this->_no_payment_required($registrations_for_free_events);
-        }
-        if (! empty($registrations_requiring_payment)) {
-            if ($this->checkout->amount_owing > 0) {
-                // autoload Line_Item_Display classes
-                EEH_Autoloader::register_line_item_filter_autoloaders();
-                $line_item_filter_processor = new EE_Line_Item_Filter_Processor(
-                    apply_filters(
-                        'FHEE__SPCO__EE_Line_Item_Filter_Collection',
-                        new EE_Line_Item_Filter_Collection()
-                    ),
-                    $this->checkout->cart->get_grand_total()
-                );
-                /** @var EE_Line_Item $filtered_line_item_tree */
-                $filtered_line_item_tree = $line_item_filter_processor->process();
-                EEH_Autoloader::register_line_item_display_autoloaders();
-                $this->set_line_item_display(new EE_Line_Item_Display('spco'));
-                $subsections['payment_options'] = $this->_display_payment_options(
-                    $this->line_item_display->display_line_item(
-                        $filtered_line_item_tree,
-                        array('registrations' => $registrations)
-                    )
-                );
-                $this->checkout->amount_owing = $filtered_line_item_tree->total();
-                $this->_apply_registration_payments_to_amount_owing($registrations);
-            }
-            $no_payment_required = false;
-        } else {
-            $this->_hide_reg_step_submit_button_if_revisit();
-        }
-        $this->_save_selected_method_of_payment();
-
-        $subsections['default_hidden_inputs'] = $this->reg_step_hidden_inputs();
-        $subsections['extra_hidden_inputs'] = $this->_extra_hidden_inputs($no_payment_required);
-
-        return new EE_Form_Section_Proper(
-            array(
-                'name'            => $this->reg_form_name(),
-                'html_id'         => $this->reg_form_name(),
-                'subsections'     => $subsections,
-                'layout_strategy' => new EE_No_Layout(),
-            )
-        );
-    }
-
-
-    /**
-     * add line item filters required for this reg step
-     * these filters are applied via this line in EE_SPCO_Reg_Step_Payment_Options::set_hooks():
-     *        add_filter( 'FHEE__SPCO__EE_Line_Item_Filter_Collection', array( 'EE_SPCO_Reg_Step_Payment_Options',
-     *        'add_spco_line_item_filters' ) ); so any code that wants to use the same set of filters during the
-     *        payment options reg step, can apply these filters via the following: apply_filters(
-     *        'FHEE__SPCO__EE_Line_Item_Filter_Collection', new EE_Line_Item_Filter_Collection() ) or to an existing
-     *        filter collection by passing that instead of instantiating a new collection
-     *
-     * @param \EE_Line_Item_Filter_Collection $line_item_filter_collection
-     * @return EE_Line_Item_Filter_Collection
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidStatusException
-     */
-    public static function add_spco_line_item_filters(EE_Line_Item_Filter_Collection $line_item_filter_collection)
-    {
-        if (! EE_Registry::instance()->SSN instanceof EE_Session) {
-            return $line_item_filter_collection;
-        }
-        if (! EE_Registry::instance()->SSN->checkout() instanceof EE_Checkout) {
-            return $line_item_filter_collection;
-        }
-        if (! EE_Registry::instance()->SSN->checkout()->transaction instanceof EE_Transaction) {
-            return $line_item_filter_collection;
-        }
-        $line_item_filter_collection->add(
-            new EE_Billable_Line_Item_Filter(
-                EE_SPCO_Reg_Step_Payment_Options::remove_ejected_registrations(
-                    EE_Registry::instance()->SSN->checkout()->transaction->registrations(
-                        EE_Registry::instance()->SSN->checkout()->reg_cache_where_params
-                    )
-                )
-            )
-        );
-        $line_item_filter_collection->add(new EE_Non_Zero_Line_Item_Filter());
-        return $line_item_filter_collection;
-    }
-
-
-    /**
-     * remove_ejected_registrations
-     * if a registrant has lost their potential space at an event due to lack of payment,
-     * then this method removes them from the list of registrations being paid for during this request
-     *
-     * @param \EE_Registration[] $registrations
-     * @return EE_Registration[]
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidStatusException
-     */
-    public static function remove_ejected_registrations(array $registrations)
-    {
-        $ejected_registrations = EE_SPCO_Reg_Step_Payment_Options::find_registrations_that_lost_their_space(
-            $registrations,
-            EE_Registry::instance()->SSN->checkout()->revisit
-        );
-        foreach ($registrations as $REG_ID => $registration) {
-            // has this registration lost it's space ?
-            if (isset($ejected_registrations[ $REG_ID ])) {
-                unset($registrations[ $REG_ID ]);
-                continue;
-            }
-        }
-        return $registrations;
-    }
-
-
-    /**
-     * find_registrations_that_lost_their_space
-     * If a registrant chooses an offline payment method like Invoice,
-     * then no space is reserved for them at the event until they fully pay fo that site
-     * (unless the event's default reg status is set to APPROVED)
-     * if a registrant then later returns to pay, but the number of spaces available has been reduced due to sales,
-     * then this method will determine which registrations have lost the ability to complete the reg process.
-     *
-     * @param \EE_Registration[] $registrations
-     * @param bool               $revisit
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidStatusException
-     */
-    public static function find_registrations_that_lost_their_space(array $registrations, $revisit = false)
-    {
-        // registrations per event
-        $event_reg_count = array();
-        // spaces left per event
-        $event_spaces_remaining = array();
-        // tickets left sorted by ID
-        $tickets_remaining = array();
-        // registrations that have lost their space
-        $ejected_registrations = array();
-        foreach ($registrations as $REG_ID => $registration) {
-            if ($registration->status_ID() === EEM_Registration::status_id_approved
-                || apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Payment_Options__find_registrations_that_lost_their_space__allow_reg_payment',
-                    false,
-                    $registration,
-                    $revisit
-                )
-            ) {
-                continue;
-            }
-            $EVT_ID = $registration->event_ID();
-            $ticket = $registration->ticket();
-            if (! isset($tickets_remaining[ $ticket->ID() ])) {
-                $tickets_remaining[ $ticket->ID() ] = $ticket->remaining();
-            }
-            if ($tickets_remaining[ $ticket->ID() ] > 0) {
-                if (! isset($event_reg_count[ $EVT_ID ])) {
-                    $event_reg_count[ $EVT_ID ] = 0;
-                }
-                $event_reg_count[ $EVT_ID ]++;
-                if (! isset($event_spaces_remaining[ $EVT_ID ])) {
-                    $event_spaces_remaining[ $EVT_ID ] = $registration->event()->spaces_remaining_for_sale();
-                }
-            }
-            if ($revisit
-                && ($tickets_remaining[ $ticket->ID() ] === 0
-                    || $event_reg_count[ $EVT_ID ] > $event_spaces_remaining[ $EVT_ID ]
-                )
-            ) {
-                $ejected_registrations[ $REG_ID ] = $registration->event();
-                if ($registration->status_ID() !== EEM_Registration::status_id_wait_list) {
-                    /** @type EE_Registration_Processor $registration_processor */
-                    $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-                    // at this point, we should have enough details about the registrant to consider the registration
-                    // NOT incomplete
-                    $registration_processor->manually_update_registration_status(
-                        $registration,
-                        EEM_Registration::status_id_wait_list
-                    );
-                }
-            }
-        }
-        return $ejected_registrations;
-    }
-
-
-    /**
-     * _hide_reg_step_submit_button
-     * removes the html for the reg step submit button
-     * by replacing it with an empty string via filter callback
-     *
-     * @return void
-     */
-    protected function _adjust_registration_status_if_event_old_sold()
-    {
-    }
-
-
-    /**
-     * _hide_reg_step_submit_button
-     * removes the html for the reg step submit button
-     * by replacing it with an empty string via filter callback
-     *
-     * @return void
-     */
-    protected function _hide_reg_step_submit_button_if_revisit()
-    {
-        if ($this->checkout->revisit) {
-            add_filter('FHEE__EE_SPCO_Reg_Step__reg_step_submit_button__sbmt_btn_html', '__return_empty_string');
-        }
-    }
-
-
-    /**
-     * sold_out_events
-     * displays notices regarding events that have sold out since hte registrant first signed up
-     *
-     * @param \EE_Event[] $sold_out_events_array
-     * @return \EE_Form_Section_Proper
-     * @throws \EE_Error
-     */
-    private function _sold_out_events($sold_out_events_array = array())
-    {
-        // set some defaults
-        $this->checkout->selected_method_of_payment = 'events_sold_out';
-        $sold_out_events = '';
-        foreach ($sold_out_events_array as $sold_out_event) {
-            $sold_out_events .= EEH_HTML::li(
-                EEH_HTML::span(
-                    '  ' . $sold_out_event->name(),
-                    '',
-                    'dashicons dashicons-marker ee-icon-size-16 pink-text'
-                )
-            );
-        }
-        return new EE_Form_Section_Proper(
-            array(
-                'layout_strategy' => new EE_Template_Layout(
-                    array(
-                        'layout_template_file' => SPCO_REG_STEPS_PATH
-                                                  . $this->_slug
-                                                  . DS
-                                                  . 'sold_out_events.template.php',
-                        'template_args'        => apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___sold_out_events__template_args',
-                            array(
-                                'sold_out_events'     => $sold_out_events,
-                                'sold_out_events_msg' => apply_filters(
-                                    'FHEE__EE_SPCO_Reg_Step_Payment_Options___sold_out_events__sold_out_events_msg',
-                                    sprintf(
-                                        esc_html__(
-                                            'It appears that the event you were about to make a payment for has sold out since you first registered. If you have already made a partial payment towards this event, please contact the event administrator for a refund.%3$s%3$s%1$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.%2$s',
-                                            'event_espresso'
-                                        ),
-                                        '<strong>',
-                                        '</strong>',
-                                        '<br />'
-                                    )
-                                ),
-                            )
-                        ),
-                    )
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * _insufficient_spaces_available
-     * displays notices regarding events that do not have enough remaining spaces
-     * to satisfy the current number of registrations looking to pay
-     *
-     * @param \EE_Event[] $insufficient_spaces_events_array
-     * @return \EE_Form_Section_Proper
-     * @throws \EE_Error
-     */
-    private function _insufficient_spaces_available($insufficient_spaces_events_array = array())
-    {
-        // set some defaults
-        $this->checkout->selected_method_of_payment = 'invoice';
-        $insufficient_space_events = '';
-        foreach ($insufficient_spaces_events_array as $event) {
-            if ($event instanceof EE_Event) {
-                $insufficient_space_events .= EEH_HTML::li(
-                    EEH_HTML::span(' ' . $event->name(), '', 'dashicons dashicons-marker ee-icon-size-16 pink-text')
-                );
-            }
-        }
-        return new EE_Form_Section_Proper(
-            array(
-                'subsections'     => array(
-                    'default_hidden_inputs' => $this->reg_step_hidden_inputs(),
-                    'extra_hidden_inputs'   => $this->_extra_hidden_inputs(),
-                ),
-                'layout_strategy' => new EE_Template_Layout(
-                    array(
-                        'layout_template_file' => SPCO_REG_STEPS_PATH
-                                                  . $this->_slug
-                                                  . DS
-                                                  . 'sold_out_events.template.php',
-                        'template_args'        => apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___insufficient_spaces_available__template_args',
-                            array(
-                                'sold_out_events'     => $insufficient_space_events,
-                                'sold_out_events_msg' => apply_filters(
-                                    'FHEE__EE_SPCO_Reg_Step_Payment_Options___insufficient_spaces_available__insufficient_space_msg',
-                                    esc_html__(
-                                        'It appears that the event you were about to make a payment for has sold additional tickets since you first registered, and there are no longer enough spaces left to accommodate your selections. You may continue to pay and secure the available space(s) remaining, or simply cancel if you no longer wish to purchase. If you have already made a partial payment towards this event, please contact the event administrator for a refund.',
-                                        'event_espresso'
-                                    )
-                                ),
-                            )
-                        ),
-                    )
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * registrations_requiring_pre_approval
-     *
-     * @param array $registrations_requiring_pre_approval
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     */
-    private function _registrations_requiring_pre_approval($registrations_requiring_pre_approval = array())
-    {
-        $events_requiring_pre_approval = '';
-        foreach ($registrations_requiring_pre_approval as $registration) {
-            if ($registration instanceof EE_Registration && $registration->event() instanceof EE_Event) {
-                $events_requiring_pre_approval[ $registration->event()->ID() ] = EEH_HTML::li(
-                    EEH_HTML::span(
-                        '',
-                        '',
-                        'dashicons dashicons-marker ee-icon-size-16 orange-text'
-                    )
-                    . EEH_HTML::span($registration->event()->name(), '', 'orange-text')
-                );
-            }
-        }
-        return new EE_Form_Section_Proper(
-            array(
-                'layout_strategy' => new EE_Template_Layout(
-                    array(
-                        'layout_template_file' => SPCO_REG_STEPS_PATH
-                                                  . $this->_slug
-                                                  . DS
-                                                  . 'events_requiring_pre_approval.template.php', // layout_template
-                        'template_args'        => apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___sold_out_events__template_args',
-                            array(
-                                'events_requiring_pre_approval'     => implode('', $events_requiring_pre_approval),
-                                'events_requiring_pre_approval_msg' => apply_filters(
-                                    'FHEE__EE_SPCO_Reg_Step_Payment_Options___events_requiring_pre_approval__events_requiring_pre_approval_msg',
-                                    esc_html__(
-                                        'The following events do not require payment at this time and will not be billed during this transaction. Billing will only occur after the attendee has been approved by the event organizer. You will be notified when your registration has been processed. If this is a free event, then no billing will occur.',
-                                        'event_espresso'
-                                    )
-                                ),
-                            )
-                        ),
-                    )
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * _no_payment_required
-     *
-     * @param \EE_Event[] $registrations_for_free_events
-     * @return \EE_Form_Section_Proper
-     * @throws \EE_Error
-     */
-    private function _no_payment_required($registrations_for_free_events = array())
-    {
-        // set some defaults
-        $this->checkout->selected_method_of_payment = 'no_payment_required';
-        // generate no_payment_required form
-        return new EE_Form_Section_Proper(
-            array(
-                'layout_strategy' => new EE_Template_Layout(
-                    array(
-                        'layout_template_file' => SPCO_REG_STEPS_PATH
-                                                  . $this->_slug
-                                                  . DS
-                                                  . 'no_payment_required.template.php', // layout_template
-                        'template_args'        => apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___no_payment_required__template_args',
-                            array(
-                                'revisit'                       => $this->checkout->revisit,
-                                'registrations'                 => array(),
-                                'ticket_count'                  => array(),
-                                'registrations_for_free_events' => $registrations_for_free_events,
-                                'no_payment_required_msg'       => EEH_HTML::p(
-                                    esc_html__('This is a free event, so no billing will occur.', 'event_espresso')
-                                ),
-                            )
-                        ),
-                    )
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * _display_payment_options
-     *
-     * @param string $transaction_details
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _display_payment_options($transaction_details = '')
-    {
-        // has method_of_payment been set by no-js user?
-        $this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment();
-        // build payment options form
-        return apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__payment_options_form',
-            new EE_Form_Section_Proper(
-                array(
-                    'subsections'     => array(
-                        'before_payment_options' => apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__before_payment_options',
-                            new EE_Form_Section_Proper(
-                                array('layout_strategy' => new EE_Div_Per_Section_Layout())
-                            )
-                        ),
-                        'payment_options'        => $this->_setup_payment_options(),
-                        'after_payment_options'  => apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__after_payment_options',
-                            new EE_Form_Section_Proper(
-                                array('layout_strategy' => new EE_Div_Per_Section_Layout())
-                            )
-                        ),
-                    ),
-                    'layout_strategy' => new EE_Template_Layout(
-                        array(
-                            'layout_template_file' => $this->_template,
-                            'template_args'        => apply_filters(
-                                'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__template_args',
-                                array(
-                                    'reg_count'                 => $this->line_item_display->total_items(),
-                                    'transaction_details'       => $transaction_details,
-                                    'available_payment_methods' => array(),
-                                )
-                            ),
-                        )
-                    ),
-                )
-            )
-        );
-    }
-
-
-    /**
-     * _extra_hidden_inputs
-     *
-     * @param bool $no_payment_required
-     * @return \EE_Form_Section_Proper
-     * @throws \EE_Error
-     */
-    private function _extra_hidden_inputs($no_payment_required = true)
-    {
-        return new EE_Form_Section_Proper(
-            array(
-                'html_id'         => 'ee-' . $this->slug() . '-extra-hidden-inputs',
-                'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                'subsections'     => array(
-                    'spco_no_payment_required' => new EE_Hidden_Input(
-                        array(
-                            'normalization_strategy' => new EE_Boolean_Normalization(),
-                            'html_name'              => 'spco_no_payment_required',
-                            'html_id'                => 'spco-no-payment-required-payment_options',
-                            'default'                => $no_payment_required,
-                        )
-                    ),
-                    'spco_transaction_id'      => new EE_Fixed_Hidden_Input(
-                        array(
-                            'normalization_strategy' => new EE_Int_Normalization(),
-                            'html_name'              => 'spco_transaction_id',
-                            'html_id'                => 'spco-transaction-id',
-                            'default'                => $this->checkout->transaction->ID(),
-                        )
-                    ),
-                ),
-            )
-        );
-    }
-
-
-    /**
-     *    _apply_registration_payments_to_amount_owing
-     *
-     * @access protected
-     * @param array $registrations
-     * @throws EE_Error
-     */
-    protected function _apply_registration_payments_to_amount_owing(array $registrations)
-    {
-        $payments = array();
-        foreach ($registrations as $registration) {
-            if ($registration instanceof EE_Registration && $registration->owes_monies_and_can_pay()) {
-                $payments += $registration->registration_payments();
-            }
-        }
-        if (! empty($payments)) {
-            foreach ($payments as $payment) {
-                if ($payment instanceof EE_Registration_Payment) {
-                    $this->checkout->amount_owing -= $payment->amount();
-                }
-            }
-        }
-    }
-
-
-    /**
-     *    _reset_selected_method_of_payment
-     *
-     * @access    private
-     * @param    bool $force_reset
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _reset_selected_method_of_payment($force_reset = false)
-    {
-        $reset_payment_method = $force_reset
-            ? true
-            : sanitize_text_field(EE_Registry::instance()->REQ->get('reset_payment_method', false));
-        if ($reset_payment_method) {
-            $this->checkout->selected_method_of_payment = null;
-            $this->checkout->payment_method = null;
-            $this->checkout->billing_form = null;
-            $this->_save_selected_method_of_payment();
-        }
-    }
-
-
-    /**
-     * _save_selected_method_of_payment
-     * stores the selected_method_of_payment in the session
-     * so that it's available for all subsequent requests including AJAX
-     *
-     * @access        private
-     * @param string $selected_method_of_payment
-     * @return void
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _save_selected_method_of_payment($selected_method_of_payment = '')
-    {
-        $selected_method_of_payment = ! empty($selected_method_of_payment)
-            ? $selected_method_of_payment
-            : $this->checkout->selected_method_of_payment;
-        EE_Registry::instance()->SSN->set_session_data(
-            array('selected_method_of_payment' => $selected_method_of_payment)
-        );
-    }
-
-
-    /**
-     * _setup_payment_options
-     *
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function _setup_payment_options()
-    {
-        // load payment method classes
-        $this->checkout->available_payment_methods = $this->_get_available_payment_methods();
-        if (empty($this->checkout->available_payment_methods)) {
-            EE_Error::add_error(
-                apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Payment_Options___setup_payment_options__error_message_no_payment_methods',
-                    sprintf(
-                        esc_html__(
-                            'Sorry, you cannot complete your purchase because a payment method is not active.%1$s Please contact %2$s for assistance and provide a description of the problem.',
-                            'event_espresso'
-                        ),
-                        '<br>',
-                        EE_Registry::instance()->CFG->organization->get_pretty('email')
-                    )
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        // switch up header depending on number of available payment methods
-        $payment_method_header = count($this->checkout->available_payment_methods) > 1
-            ? apply_filters(
-                'FHEE__registration_page_payment_options__method_of_payment_hdr',
-                esc_html__('Please Select Your Method of Payment', 'event_espresso')
-            )
-            : apply_filters(
-                'FHEE__registration_page_payment_options__method_of_payment_hdr',
-                esc_html__('Method of Payment', 'event_espresso')
-            );
-        $available_payment_methods = array(
-            // display the "Payment Method" header
-            'payment_method_header' => new EE_Form_Section_HTML(
-                EEH_HTML::h4($payment_method_header, 'method-of-payment-hdr')
-            ),
-        );
-        // the list of actual payment methods ( invoice, paypal, etc ) in a  ( slug => HTML )  format
-        $available_payment_method_options = array();
-        $default_payment_method_option = array();
-        // additional instructions to be displayed and hidden below payment methods (adding a clearing div to start)
-        $payment_methods_billing_info = array(
-            new EE_Form_Section_HTML(
-                EEH_HTML::div('<br />', '', '', 'clear:both;')
-            ),
-        );
-        // loop through payment methods
-        foreach ($this->checkout->available_payment_methods as $payment_method) {
-            if ($payment_method instanceof EE_Payment_Method) {
-                $payment_method_button = EEH_HTML::img(
-                    $payment_method->button_url(),
-                    $payment_method->name(),
-                    'spco-payment-method-' . $payment_method->slug() . '-btn-img',
-                    'spco-payment-method-btn-img'
-                );
-                // check if any payment methods are set as default
-                // if payment method is already selected OR nothing is selected and this payment method should be
-                // open_by_default
-                if (($this->checkout->selected_method_of_payment === $payment_method->slug())
-                    || (! $this->checkout->selected_method_of_payment && $payment_method->open_by_default())
-                ) {
-                    $this->checkout->selected_method_of_payment = $payment_method->slug();
-                    $this->_save_selected_method_of_payment();
-                    $default_payment_method_option[ $payment_method->slug() ] = $payment_method_button;
-                } else {
-                    $available_payment_method_options[ $payment_method->slug() ] = $payment_method_button;
-                }
-                $payment_methods_billing_info[ $payment_method->slug(
-                ) . '-info' ] = $this->_payment_method_billing_info(
-                    $payment_method
-                );
-            }
-        }
-        // prepend available_payment_method_options with default_payment_method_option so that it appears first in list
-        // of PMs
-        $available_payment_method_options = $default_payment_method_option + $available_payment_method_options;
-        // now generate the actual form  inputs
-        $available_payment_methods['available_payment_methods'] = $this->_available_payment_method_inputs(
-            $available_payment_method_options
-        );
-        $available_payment_methods += $payment_methods_billing_info;
-        // build the available payment methods form
-        return new EE_Form_Section_Proper(
-            array(
-                'html_id'         => 'spco-available-methods-of-payment-dv',
-                'subsections'     => $available_payment_methods,
-                'layout_strategy' => new EE_Div_Per_Section_Layout(),
-            )
-        );
-    }
-
-
-    /**
-     * _get_available_payment_methods
-     *
-     * @return EE_Payment_Method[]
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    protected function _get_available_payment_methods()
-    {
-        if (! empty($this->checkout->available_payment_methods)) {
-            return $this->checkout->available_payment_methods;
-        }
-        $available_payment_methods = array();
-        // load EEM_Payment_Method
-        EE_Registry::instance()->load_model('Payment_Method');
-        /** @type EEM_Payment_Method $EEM_Payment_Method */
-        $EEM_Payment_Method = EE_Registry::instance()->LIB->EEM_Payment_Method;
-        // get all active payment methods
-        $payment_methods = $EEM_Payment_Method->get_all_for_transaction(
-            $this->checkout->transaction,
-            EEM_Payment_Method::scope_cart
-        );
-        foreach ($payment_methods as $payment_method) {
-            if ($payment_method instanceof EE_Payment_Method) {
-                $available_payment_methods[ $payment_method->slug() ] = $payment_method;
-            }
-        }
-        return $available_payment_methods;
-    }
-
-
-    /**
-     *    _available_payment_method_inputs
-     *
-     * @access    private
-     * @param    array $available_payment_method_options
-     * @return    \EE_Form_Section_Proper
-     */
-    private function _available_payment_method_inputs($available_payment_method_options = array())
-    {
-        // generate inputs
-        return new EE_Form_Section_Proper(
-            array(
-                'html_id'         => 'ee-available-payment-method-inputs',
-                'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                'subsections'     => array(
-                    '' => new EE_Radio_Button_Input(
-                        $available_payment_method_options,
-                        array(
-                            'html_name'          => 'selected_method_of_payment',
-                            'html_class'         => 'spco-payment-method',
-                            'default'            => $this->checkout->selected_method_of_payment,
-                            'label_size'         => 11,
-                            'enforce_label_size' => true,
-                        )
-                    ),
-                ),
-            )
-        );
-    }
-
-
-    /**
-     *    _payment_method_billing_info
-     *
-     * @access    private
-     * @param    EE_Payment_Method $payment_method
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _payment_method_billing_info(EE_Payment_Method $payment_method)
-    {
-        $currently_selected = $this->checkout->selected_method_of_payment === $payment_method->slug()
-            ? true
-            : false;
-        // generate the billing form for payment method
-        $billing_form = $currently_selected
-            ? $this->_get_billing_form_for_payment_method($payment_method)
-            : new EE_Form_Section_HTML();
-        $this->checkout->billing_form = $currently_selected
-            ? $billing_form
-            : $this->checkout->billing_form;
-        // it's all in the details
-        $info_html = EEH_HTML::h3(
-            esc_html__('Important information regarding your payment', 'event_espresso'),
-            '',
-            'spco-payment-method-hdr'
-        );
-        // add some info regarding the step, either from what's saved in the admin,
-        // or a default string depending on whether the PM has a billing form or not
-        if ($payment_method->description()) {
-            $payment_method_info = $payment_method->description();
-        } elseif ($billing_form instanceof EE_Billing_Info_Form) {
-            $payment_method_info = sprintf(
-                esc_html__(
-                    'Please provide the following billing information, then click the "%1$s" button below in order to proceed.',
-                    'event_espresso'
-                ),
-                $this->submit_button_text()
-            );
-        } else {
-            $payment_method_info = sprintf(
-                esc_html__('Please click the "%1$s" button below in order to proceed.', 'event_espresso'),
-                $this->submit_button_text()
-            );
-        }
-        $info_html .= EEH_HTML::p(
-            apply_filters(
-                'FHEE__EE_SPCO_Reg_Step_Payment_Options___payment_method_billing_info__payment_method_info',
-                $payment_method_info
-            ),
-            '',
-            'spco-payment-method-desc ee-attention'
-        );
-        return new EE_Form_Section_Proper(
-            array(
-                'html_id'         => 'spco-payment-method-info-' . $payment_method->slug(),
-                'html_class'      => 'spco-payment-method-info-dv',
-                // only display the selected or default PM
-                'html_style'      => $currently_selected ? '' : 'display:none;',
-                'layout_strategy' => new EE_Div_Per_Section_Layout(),
-                'subsections'     => array(
-                    'info'         => new EE_Form_Section_HTML($info_html),
-                    'billing_form' => $currently_selected ? $billing_form : new EE_Form_Section_HTML(),
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * get_billing_form_html_for_payment_method
-     *
-     * @access public
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function get_billing_form_html_for_payment_method()
-    {
-        // how have they chosen to pay?
-        $this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
-        $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment();
-        if (! $this->checkout->payment_method instanceof EE_Payment_Method) {
-            return false;
-        }
-        if (apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Payment_Options__registration_checkout__selected_payment_method__display_success',
-            false
-        )) {
-            EE_Error::add_success(
-                apply_filters(
-                    'FHEE__Single_Page_Checkout__registration_checkout__selected_payment_method',
-                    sprintf(
-                        esc_html__(
-                            'You have selected "%s" as your method of payment. Please note the important payment information below.',
-                            'event_espresso'
-                        ),
-                        $this->checkout->payment_method->name()
-                    )
-                )
-            );
-        }
-        // now generate billing form for selected method of payment
-        $payment_method_billing_form = $this->_get_billing_form_for_payment_method($this->checkout->payment_method);
-        // fill form with attendee info if applicable
-        if ($payment_method_billing_form instanceof EE_Billing_Attendee_Info_Form
-            && $this->checkout->transaction_has_primary_registrant()
-        ) {
-            $payment_method_billing_form->populate_from_attendee(
-                $this->checkout->transaction->primary_registration()->attendee()
-            );
-        }
-        // and debug content
-        if ($payment_method_billing_form instanceof EE_Billing_Info_Form
-            && $this->checkout->payment_method->type_obj() instanceof EE_PMT_Base
-        ) {
-            $payment_method_billing_form =
-                $this->checkout->payment_method->type_obj()->apply_billing_form_debug_settings(
-                    $payment_method_billing_form
-                );
-        }
-        $billing_info = $payment_method_billing_form instanceof EE_Form_Section_Proper
-            ? $payment_method_billing_form->get_html()
-            : '';
-        $this->checkout->json_response->set_return_data(array('payment_method_info' => $billing_info));
-        // localize validation rules for main form
-        $this->checkout->current_step->reg_form->localize_validation_rules();
-        $this->checkout->json_response->add_validation_rules(EE_Form_Section_Proper::js_localization());
-        return true;
-    }
-
-
-    /**
-     * _get_billing_form_for_payment_method
-     *
-     * @access private
-     * @param EE_Payment_Method $payment_method
-     * @return EE_Billing_Info_Form|EE_Form_Section_HTML
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _get_billing_form_for_payment_method(EE_Payment_Method $payment_method)
-    {
-        $billing_form = $payment_method->type_obj()->billing_form(
-            $this->checkout->transaction,
-            array('amount_owing' => $this->checkout->amount_owing)
-        );
-        if ($billing_form instanceof EE_Billing_Info_Form) {
-            if (apply_filters(
-                'FHEE__EE_SPCO_Reg_Step_Payment_Options__registration_checkout__selected_payment_method__display_success',
-                false
-            )
-                && EE_Registry::instance()->REQ->is_set('payment_method')
-            ) {
-                EE_Error::add_success(
-                    apply_filters(
-                        'FHEE__Single_Page_Checkout__registration_checkout__selected_payment_method',
-                        sprintf(
-                            esc_html__(
-                                'You have selected "%s" as your method of payment. Please note the important payment information below.',
-                                'event_espresso'
-                            ),
-                            $payment_method->name()
-                        )
-                    )
-                );
-            }
-            return apply_filters(
-                'FHEE__EE_SPCO_Reg_Step_Payment_Options___get_billing_form_for_payment_method__billing_form',
-                $billing_form,
-                $payment_method
-            );
-        }
-        // no actual billing form, so return empty HTML form section
-        return new EE_Form_Section_HTML();
-    }
-
-
-    /**
-     * _get_selected_method_of_payment
-     *
-     * @access private
-     * @param boolean $required whether to throw an error if the "selected_method_of_payment"
-     *                          is not found in the incoming request
-     * @param string  $request_param
-     * @return NULL|string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _get_selected_method_of_payment(
-        $required = false,
-        $request_param = 'selected_method_of_payment'
-    ) {
-        // is selected_method_of_payment set in the request ?
-        $selected_method_of_payment = EE_Registry::instance()->REQ->get($request_param, false);
-        if ($selected_method_of_payment) {
-            // sanitize it
-            $selected_method_of_payment = is_array($selected_method_of_payment)
-                ? array_shift($selected_method_of_payment)
-                : $selected_method_of_payment;
-            $selected_method_of_payment = sanitize_text_field($selected_method_of_payment);
-            // store it in the session so that it's available for all subsequent requests including AJAX
-            $this->_save_selected_method_of_payment($selected_method_of_payment);
-        } else {
-            // or is is set in the session ?
-            $selected_method_of_payment = EE_Registry::instance()->SSN->get_session_data(
-                'selected_method_of_payment'
-            );
-        }
-        // do ya really really gotta have it?
-        if (empty($selected_method_of_payment) && $required) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'The selected method of payment could not be determined.%sPlease ensure that you have selected one before proceeding.%sIf you continue to experience difficulties, then refresh your browser and try again, or contact %s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return null;
-        }
-        return $selected_method_of_payment;
-    }
-
-
-
-
-
-
-    /********************************************************************************************************/
-    /***********************************  SWITCH PAYMENT METHOD  ************************************/
-    /********************************************************************************************************/
-    /**
-     * switch_payment_method
-     *
-     * @access public
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function switch_payment_method()
-    {
-        if (! $this->_verify_payment_method_is_set()) {
-            return false;
-        }
-        if (apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Payment_Options__registration_checkout__selected_payment_method__display_success',
-            false
-        )) {
-            EE_Error::add_success(
-                apply_filters(
-                    'FHEE__Single_Page_Checkout__registration_checkout__selected_payment_method',
-                    sprintf(
-                        esc_html__(
-                            'You have selected "%s" as your method of payment. Please note the important payment information below.',
-                            'event_espresso'
-                        ),
-                        $this->checkout->payment_method->name()
-                    )
-                )
-            );
-        }
-        // generate billing form for selected method of payment if it hasn't been done already
-        if ($this->checkout->payment_method->type_obj()->has_billing_form()) {
-            $this->checkout->billing_form = $this->_get_billing_form_for_payment_method(
-                $this->checkout->payment_method
-            );
-        }
-        // fill form with attendee info if applicable
-        if (apply_filters(
-            'FHEE__populate_billing_form_fields_from_attendee',
-            (
-                $this->checkout->billing_form instanceof EE_Billing_Attendee_Info_Form
-                && $this->checkout->transaction_has_primary_registrant()
-            ),
-            $this->checkout->billing_form,
-            $this->checkout->transaction
-        )
-        ) {
-            $this->checkout->billing_form->populate_from_attendee(
-                $this->checkout->transaction->primary_registration()->attendee()
-            );
-        }
-        // and debug content
-        if ($this->checkout->billing_form instanceof EE_Billing_Info_Form
-            && $this->checkout->payment_method->type_obj() instanceof EE_PMT_Base
-        ) {
-            $this->checkout->billing_form =
-                $this->checkout->payment_method->type_obj()->apply_billing_form_debug_settings(
-                    $this->checkout->billing_form
-                );
-        }
-        // get html and validation rules for form
-        if ($this->checkout->billing_form instanceof EE_Form_Section_Proper) {
-            $this->checkout->json_response->set_return_data(
-                array('payment_method_info' => $this->checkout->billing_form->get_html())
-            );
-            // localize validation rules for main form
-            $this->checkout->billing_form->localize_validation_rules(true);
-            $this->checkout->json_response->add_validation_rules(EE_Form_Section_Proper::js_localization());
-        } else {
-            $this->checkout->json_response->set_return_data(array('payment_method_info' => ''));
-        }
-        // prevents advancement to next step
-        $this->checkout->continue_reg = false;
-        return true;
-    }
-
-
-    /**
-     * _verify_payment_method_is_set
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    protected function _verify_payment_method_is_set()
-    {
-        // generate billing form for selected method of payment if it hasn't been done already
-        if (empty($this->checkout->selected_method_of_payment)) {
-            // how have they chosen to pay?
-            $this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
-        } else {
-            // choose your own adventure based on method_of_payment
-            switch ($this->checkout->selected_method_of_payment) {
-                case 'events_sold_out':
-                    EE_Error::add_attention(
-                        apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___verify_payment_method_is_set__sold_out_events_msg',
-                            esc_html__(
-                                'It appears that the event you were about to make a payment for has sold out since this form first loaded. Please contact the event administrator if you believe this is an error.',
-                                'event_espresso'
-                            )
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                    break;
-                case 'payments_closed':
-                    EE_Error::add_attention(
-                        apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___verify_payment_method_is_set__payments_closed_msg',
-                            esc_html__(
-                                'It appears that the event you were about to make a payment for is not accepting payments at this time. Please contact the event administrator if you believe this is an error.',
-                                'event_espresso'
-                            )
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                    break;
-                case 'no_payment_required':
-                    EE_Error::add_attention(
-                        apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___verify_payment_method_is_set__no_payment_required_msg',
-                            esc_html__(
-                                'It appears that the event you were about to make a payment for does not require payment. Please contact the event administrator if you believe this is an error.',
-                                'event_espresso'
-                            )
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                    break;
-                default:
-            }
-        }
-        // verify payment method
-        if (! $this->checkout->payment_method instanceof EE_Payment_Method) {
-            // get payment method for selected method of payment
-            $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment();
-        }
-        return $this->checkout->payment_method instanceof EE_Payment_Method ? true : false;
-    }
-
-
-
-    /********************************************************************************************************/
-    /***************************************  SAVE PAYER DETAILS  ****************************************/
-    /********************************************************************************************************/
-    /**
-     * save_payer_details_via_ajax
-     *
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function save_payer_details_via_ajax()
-    {
-        if (! $this->_verify_payment_method_is_set()) {
-            return;
-        }
-        // generate billing form for selected method of payment if it hasn't been done already
-        if ($this->checkout->payment_method->type_obj()->has_billing_form()) {
-            $this->checkout->billing_form = $this->_get_billing_form_for_payment_method(
-                $this->checkout->payment_method
-            );
-        }
-        // generate primary attendee from payer info if applicable
-        if (! $this->checkout->transaction_has_primary_registrant()) {
-            $attendee = $this->_create_attendee_from_request_data();
-            if ($attendee instanceof EE_Attendee) {
-                foreach ($this->checkout->transaction->registrations() as $registration) {
-                    if ($registration->is_primary_registrant()) {
-                        $this->checkout->primary_attendee_obj = $attendee;
-                        $registration->_add_relation_to($attendee, 'Attendee');
-                        $registration->set_attendee_id($attendee->ID());
-                        $registration->update_cache_after_object_save('Attendee', $attendee);
-                    }
-                }
-            }
-        }
-    }
-
-
-    /**
-     * create_attendee_from_request_data
-     * uses info from alternate GET or POST data (such as AJAX) to create a new attendee
-     *
-     * @return EE_Attendee
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    protected function _create_attendee_from_request_data()
-    {
-        // get State ID
-        $STA_ID = ! empty($_REQUEST['state']) ? sanitize_text_field($_REQUEST['state']) : '';
-        if (! empty($STA_ID)) {
-            // can we get state object from name ?
-            EE_Registry::instance()->load_model('State');
-            $state = EEM_State::instance()->get_col(array(array('STA_name' => $STA_ID), 'limit' => 1), 'STA_ID');
-            $STA_ID = is_array($state) && ! empty($state) ? reset($state) : $STA_ID;
-        }
-        // get Country ISO
-        $CNT_ISO = ! empty($_REQUEST['country']) ? sanitize_text_field($_REQUEST['country']) : '';
-        if (! empty($CNT_ISO)) {
-            // can we get country object from name ?
-            EE_Registry::instance()->load_model('Country');
-            $country = EEM_Country::instance()->get_col(
-                array(array('CNT_name' => $CNT_ISO), 'limit' => 1),
-                'CNT_ISO'
-            );
-            $CNT_ISO = is_array($country) && ! empty($country) ? reset($country) : $CNT_ISO;
-        }
-        // grab attendee data
-        $attendee_data = array(
-            'ATT_fname'    => ! empty($_REQUEST['first_name']) ? sanitize_text_field($_REQUEST['first_name']) : '',
-            'ATT_lname'    => ! empty($_REQUEST['last_name']) ? sanitize_text_field($_REQUEST['last_name']) : '',
-            'ATT_email'    => ! empty($_REQUEST['email']) ? sanitize_email($_REQUEST['email']) : '',
-            'ATT_address'  => ! empty($_REQUEST['address']) ? sanitize_text_field($_REQUEST['address']) : '',
-            'ATT_address2' => ! empty($_REQUEST['address2']) ? sanitize_text_field($_REQUEST['address2']) : '',
-            'ATT_city'     => ! empty($_REQUEST['city']) ? sanitize_text_field($_REQUEST['city']) : '',
-            'STA_ID'       => $STA_ID,
-            'CNT_ISO'      => $CNT_ISO,
-            'ATT_zip'      => ! empty($_REQUEST['zip']) ? sanitize_text_field($_REQUEST['zip']) : '',
-            'ATT_phone'    => ! empty($_REQUEST['phone']) ? sanitize_text_field($_REQUEST['phone']) : '',
-        );
-        // validate the email address since it is the most important piece of info
-        if (empty($attendee_data['ATT_email']) || $attendee_data['ATT_email'] !== $_REQUEST['email']) {
-            EE_Error::add_error(
-                esc_html__('An invalid email address was submitted.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        // does this attendee already exist in the db ? we're searching using a combination of first name, last name,
-        // AND email address
-        if (! empty($attendee_data['ATT_fname'])
-            && ! empty($attendee_data['ATT_lname'])
-            && ! empty($attendee_data['ATT_email'])
-        ) {
-            $existing_attendee = EE_Registry::instance()->LIB->EEM_Attendee->find_existing_attendee(
-                array(
-                    'ATT_fname' => $attendee_data['ATT_fname'],
-                    'ATT_lname' => $attendee_data['ATT_lname'],
-                    'ATT_email' => $attendee_data['ATT_email'],
-                )
-            );
-            if ($existing_attendee instanceof EE_Attendee) {
-                return $existing_attendee;
-            }
-        }
-        // no existing attendee? kk let's create a new one
-        // kinda lame, but we need a first and last name to create an attendee, so use the email address if those
-        // don't exist
-        $attendee_data['ATT_fname'] = ! empty($attendee_data['ATT_fname'])
-            ? $attendee_data['ATT_fname']
-            : $attendee_data['ATT_email'];
-        $attendee_data['ATT_lname'] = ! empty($attendee_data['ATT_lname'])
-            ? $attendee_data['ATT_lname']
-            : $attendee_data['ATT_email'];
-        return EE_Attendee::new_instance($attendee_data);
-    }
-
-
-
-    /********************************************************************************************************/
-    /****************************************  PROCESS REG STEP  *****************************************/
-    /********************************************************************************************************/
-    /**
-     * process_reg_step
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidStatusException
-     */
-    public function process_reg_step()
-    {
-        // how have they chosen to pay?
-        $this->checkout->selected_method_of_payment = $this->checkout->transaction->is_free()
-            ? 'no_payment_required'
-            : $this->_get_selected_method_of_payment(true);
-        // choose your own adventure based on method_of_payment
-        switch ($this->checkout->selected_method_of_payment) {
-            case 'events_sold_out':
-                $this->checkout->redirect = true;
-                $this->checkout->redirect_url = $this->checkout->cancel_page_url;
-                $this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
-                // mark this reg step as completed
-                $this->set_completed();
-                return false;
-                break;
-
-            case 'payments_closed':
-                if (apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Payment_Options__process_reg_step__payments_closed__display_success',
-                    false
-                )) {
-                    EE_Error::add_success(
-                        esc_html__('no payment required at this time.', 'event_espresso'),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-                // mark this reg step as completed
-                $this->set_completed();
-                return true;
-                break;
-
-            case 'no_payment_required':
-                if (apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Payment_Options__process_reg_step__no_payment_required__display_success',
-                    false
-                )) {
-                    EE_Error::add_success(
-                        esc_html__('no payment required.', 'event_espresso'),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-                // mark this reg step as completed
-                $this->set_completed();
-                return true;
-                break;
-
-            default:
-                $registrations = EE_Registry::instance()->SSN->checkout()->transaction->registrations(
-                    EE_Registry::instance()->SSN->checkout()->reg_cache_where_params
-                );
-                $ejected_registrations = EE_SPCO_Reg_Step_Payment_Options::find_registrations_that_lost_their_space(
-                    $registrations,
-                    EE_Registry::instance()->SSN->checkout()->revisit
-                );
-                // calculate difference between the two arrays
-                $registrations = array_diff($registrations, $ejected_registrations);
-                if (empty($registrations)) {
-                    $this->_redirect_because_event_sold_out();
-                    return false;
-                }
-                $payment_successful = $this->_process_payment();
-                if ($payment_successful) {
-                    $this->checkout->continue_reg = true;
-                    $this->_maybe_set_completed($this->checkout->payment_method);
-                } else {
-                    $this->checkout->continue_reg = false;
-                }
-                return $payment_successful;
-        }
-    }
-
-
-    /**
-     * _redirect_because_event_sold_out
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _redirect_because_event_sold_out()
-    {
-        $this->checkout->continue_reg = false;
-        // set redirect URL
-        $this->checkout->redirect_url = add_query_arg(
-            array('e_reg_url_link' => $this->checkout->reg_url_link),
-            $this->checkout->current_step->reg_step_url()
-        );
-        $this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
-    }
-
-
-    /**
-     * _maybe_set_completed
-     *
-     * @access protected
-     * @param \EE_Payment_Method $payment_method
-     * @return void
-     * @throws \EE_Error
-     */
-    protected function _maybe_set_completed(EE_Payment_Method $payment_method)
-    {
-        switch ($payment_method->type_obj()->payment_occurs()) {
-            case EE_PMT_Base::offsite:
-                break;
-            case EE_PMT_Base::onsite:
-            case EE_PMT_Base::offline:
-                // mark this reg step as completed
-                $this->set_completed();
-                break;
-        }
-    }
-
-
-    /**
-     *    update_reg_step
-     *    this is the final step after a user  revisits the site to retry a payment
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidStatusException
-     */
-    public function update_reg_step()
-    {
-        $success = true;
-        // if payment required
-        if ($this->checkout->transaction->total() > 0) {
-            do_action(
-                'AHEE__EE_Single_Page_Checkout__process_finalize_registration__before_gateway',
-                $this->checkout->transaction
-            );
-            // attempt payment via payment method
-            $success = $this->process_reg_step();
-        }
-        if ($success && ! $this->checkout->redirect) {
-            $this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn(
-                $this->checkout->transaction->ID()
-            );
-            // set return URL
-            $this->checkout->redirect_url = add_query_arg(
-                array('e_reg_url_link' => $this->checkout->reg_url_link),
-                $this->checkout->thank_you_page_url
-            );
-        }
-        return $success;
-    }
-
-
-    /**
-     *    _process_payment
-     *
-     * @access private
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _process_payment()
-    {
-        // basically confirm that the event hasn't sold out since they hit the page
-        if (! $this->_last_second_ticket_verifications()) {
-            return false;
-        }
-        // ya gotta make a choice man
-        if (empty($this->checkout->selected_method_of_payment)) {
-            $this->checkout->json_response->set_plz_select_method_of_payment(
-                esc_html__('Please select a method of payment before proceeding.', 'event_espresso')
-            );
-            return false;
-        }
-        // get EE_Payment_Method object
-        if (! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
-            return false;
-        }
-        // setup billing form
-        if ($this->checkout->payment_method->is_on_site()) {
-            $this->checkout->billing_form = $this->_get_billing_form_for_payment_method(
-                $this->checkout->payment_method
-            );
-            // bad billing form ?
-            if (! $this->_billing_form_is_valid()) {
-                return false;
-            }
-        }
-        // ensure primary registrant has been fully processed
-        if (! $this->_setup_primary_registrant_prior_to_payment()) {
-            return false;
-        }
-        // if session is close to expiring (under 10 minutes by default)
-        if ((time() - EE_Registry::instance()->SSN->expiration()) < EE_Registry::instance()->SSN->extension()) {
-            // add some time to session expiration so that payment can be completed
-            EE_Registry::instance()->SSN->extend_expiration();
-        }
-        /** @type EE_Transaction_Processor $transaction_processor */
-        // $transaction_processor = EE_Registry::instance()->load_class( 'Transaction_Processor' );
-        // in case a registrant leaves to an Off-Site Gateway and never returns, we want to approve any registrations
-        // for events with a default reg status of Approved
-        // $transaction_processor->toggle_registration_statuses_for_default_approved_events(
-        //      $this->checkout->transaction, $this->checkout->reg_cache_where_params
-        // );
-        // attempt payment
-        $payment = $this->_attempt_payment($this->checkout->payment_method);
-        // process results
-        $payment = $this->_validate_payment($payment);
-        $payment = $this->_post_payment_processing($payment);
-        // verify payment
-        if ($payment instanceof EE_Payment) {
-            // store that for later
-            $this->checkout->payment = $payment;
-            // we can also consider the TXN to not have been failed, so temporarily upgrade it's status to abandoned
-            $this->checkout->transaction->toggle_failed_transaction_status();
-            $payment_status = $payment->status();
-            if ($payment_status === EEM_Payment::status_id_approved
-                || $payment_status === EEM_Payment::status_id_pending
-            ) {
-                return true;
-            } else {
-                return false;
-            }
-        } elseif ($payment === true) {
-            // please note that offline payment methods will NOT make a payment,
-            // but instead just mark themselves as the PMD_ID on the transaction, and return true
-            $this->checkout->payment = $payment;
-            return true;
-        }
-        // where's my money?
-        return false;
-    }
-
-
-    /**
-     * _last_second_ticket_verifications
-     *
-     * @access public
-     * @return bool
-     * @throws EE_Error
-     */
-    protected function _last_second_ticket_verifications()
-    {
-        // don't bother re-validating if not a return visit
-        if (! $this->checkout->revisit) {
-            return true;
-        }
-        $registrations = $this->checkout->transaction->registrations();
-        if (empty($registrations)) {
-            return false;
-        }
-        foreach ($registrations as $registration) {
-            if ($registration instanceof EE_Registration && ! $registration->is_approved()) {
-                $event = $registration->event_obj();
-                if ($event instanceof EE_Event && $event->is_sold_out(true)) {
-                    EE_Error::add_error(
-                        apply_filters(
-                            'FHEE__EE_SPCO_Reg_Step_Payment_Options___last_second_ticket_verifications__sold_out_events_msg',
-                            sprintf(
-                                esc_html__(
-                                    'It appears that the %1$s event that you were about to make a payment for has sold out since you first registered and/or arrived at this page. Please refresh the page and try again. If you have already made a partial payment towards this event, please contact the event administrator for a refund.',
-                                    'event_espresso'
-                                ),
-                                $event->name()
-                            )
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                }
-            }
-        }
-        return true;
-    }
-
-
-    /**
-     * redirect_form
-     *
-     * @access public
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function redirect_form()
-    {
-        $payment_method_billing_info = $this->_payment_method_billing_info(
-            $this->_get_payment_method_for_selected_method_of_payment()
-        );
-        $html = $payment_method_billing_info->get_html();
-        $html .= $this->checkout->redirect_form;
-        EE_Registry::instance()->REQ->add_output($html);
-        return true;
-    }
-
-
-    /**
-     * _billing_form_is_valid
-     *
-     * @access private
-     * @return bool
-     * @throws \EE_Error
-     */
-    private function _billing_form_is_valid()
-    {
-        if (! $this->checkout->payment_method->type_obj()->has_billing_form()) {
-            return true;
-        }
-        if ($this->checkout->billing_form instanceof EE_Billing_Info_Form) {
-            if ($this->checkout->billing_form->was_submitted()) {
-                $this->checkout->billing_form->receive_form_submission();
-                if ($this->checkout->billing_form->is_valid()) {
-                    return true;
-                }
-                $validation_errors = $this->checkout->billing_form->get_validation_errors_accumulated();
-                $error_strings = array();
-                foreach ($validation_errors as $validation_error) {
-                    if ($validation_error instanceof EE_Validation_Error) {
-                        $form_section = $validation_error->get_form_section();
-                        if ($form_section instanceof EE_Form_Input_Base) {
-                            $label = $form_section->html_label_text();
-                        } elseif ($form_section instanceof EE_Form_Section_Base) {
-                            $label = $form_section->name();
-                        } else {
-                            $label = esc_html__('Validation Error', 'event_espresso');
-                        }
-                        $error_strings[] = sprintf('%1$s: %2$s', $label, $validation_error->getMessage());
-                    }
-                }
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            'One or more billing form inputs are invalid and require correction before proceeding. %1$s %2$s',
-                            'event_espresso'
-                        ),
-                        '<br/>',
-                        implode('<br/>', $error_strings)
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            } else {
-                EE_Error::add_error(
-                    esc_html__(
-                        'The billing form was not submitted or something prevented it\'s submission.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        } else {
-            EE_Error::add_error(
-                esc_html__(
-                    'The submitted billing form is invalid possibly due to a technical reason.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        return false;
-    }
-
-
-    /**
-     * _setup_primary_registrant_prior_to_payment
-     * ensures that the primary registrant has a valid attendee object created with the critical details populated
-     * (first & last name & email) and that both the transaction object and primary registration object have been saved
-     * plz note that any other registrations will NOT be saved at this point (because they may not have any details
-     * yet)
-     *
-     * @access private
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _setup_primary_registrant_prior_to_payment()
-    {
-        // check if transaction has a primary registrant and that it has a related Attendee object
-        // if not, then we need to at least gather some primary registrant data before attempting payment
-        if ($this->checkout->billing_form instanceof EE_Billing_Attendee_Info_Form
-            && ! $this->checkout->transaction_has_primary_registrant()
-            && ! $this->_capture_primary_registration_data_from_billing_form()
-        ) {
-            return false;
-        }
-        // because saving an object clears it's cache, we need to do the chevy shuffle
-        // grab the primary_registration object
-        $primary_registration = $this->checkout->transaction->primary_registration();
-        // at this point we'll consider a TXN to not have been failed
-        $this->checkout->transaction->toggle_failed_transaction_status();
-        // save the TXN ( which clears cached copy of primary_registration)
-        $this->checkout->transaction->save();
-        // grab TXN ID and save it to the primary_registration
-        $primary_registration->set_transaction_id($this->checkout->transaction->ID());
-        // save what we have so far
-        $primary_registration->save();
-        return true;
-    }
-
-
-    /**
-     * _capture_primary_registration_data_from_billing_form
-     *
-     * @access private
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _capture_primary_registration_data_from_billing_form()
-    {
-        // convert billing form data into an attendee
-        $this->checkout->primary_attendee_obj = $this->checkout->billing_form->create_attendee_from_billing_form_data();
-        if (! $this->checkout->primary_attendee_obj instanceof EE_Attendee) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'The billing form details could not be used for attendee details due to a technical issue.%sPlease try again or contact %s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        $primary_registration = $this->checkout->transaction->primary_registration();
-        if (! $primary_registration instanceof EE_Registration) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'The primary registrant for this transaction could not be determined due to a technical issue.%sPlease try again or contact %s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        if (! $primary_registration->_add_relation_to($this->checkout->primary_attendee_obj, 'Attendee')
-              instanceof
-              EE_Attendee
-        ) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'The primary registrant could not be associated with this transaction due to a technical issue.%sPlease try again or contact %s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        /** @type EE_Registration_Processor $registration_processor */
-        $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-        // at this point, we should have enough details about the registrant to consider the registration NOT incomplete
-        $registration_processor->toggle_incomplete_registration_status_to_default($primary_registration);
-        return true;
-    }
-
-
-    /**
-     * _get_payment_method_for_selected_method_of_payment
-     * retrieves a valid payment method
-     *
-     * @access public
-     * @return EE_Payment_Method
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _get_payment_method_for_selected_method_of_payment()
-    {
-        if ($this->checkout->selected_method_of_payment === 'events_sold_out') {
-            $this->_redirect_because_event_sold_out();
-            return null;
-        }
-        // get EE_Payment_Method object
-        if (isset($this->checkout->available_payment_methods[ $this->checkout->selected_method_of_payment ])) {
-            $payment_method = $this->checkout->available_payment_methods[ $this->checkout->selected_method_of_payment ];
-        } else {
-            // load EEM_Payment_Method
-            EE_Registry::instance()->load_model('Payment_Method');
-            /** @type EEM_Payment_Method $EEM_Payment_Method */
-            $EEM_Payment_Method = EE_Registry::instance()->LIB->EEM_Payment_Method;
-            $payment_method = $EEM_Payment_Method->get_one_by_slug($this->checkout->selected_method_of_payment);
-        }
-        // verify $payment_method
-        if (! $payment_method instanceof EE_Payment_Method) {
-            // not a payment
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'The selected method of payment could not be determined due to a technical issue.%sPlease try again or contact %s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return null;
-        }
-        // and verify it has a valid Payment_Method Type object
-        if (! $payment_method->type_obj() instanceof EE_PMT_Base) {
-            // not a payment
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'A valid payment method could not be determined due to a technical issue.%sPlease try again or contact %s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return null;
-        }
-        return $payment_method;
-    }
-
-
-    /**
-     *    _attempt_payment
-     *
-     * @access    private
-     * @type    EE_Payment_Method $payment_method
-     * @return mixed EE_Payment | boolean
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _attempt_payment(EE_Payment_Method $payment_method)
-    {
-        $payment = null;
-        $this->checkout->transaction->save();
-        $payment_processor = EE_Registry::instance()->load_core('Payment_Processor');
-        if (! $payment_processor instanceof EE_Payment_Processor) {
-            return false;
-        }
-        try {
-            $payment_processor->set_revisit($this->checkout->revisit);
-            // generate payment object
-            $payment = $payment_processor->process_payment(
-                $payment_method,
-                $this->checkout->transaction,
-                $this->checkout->amount_owing,
-                $this->checkout->billing_form,
-                $this->_get_return_url($payment_method),
-                'CART',
-                $this->checkout->admin_request,
-                true,
-                $this->reg_step_url()
-            );
-        } catch (Exception $e) {
-            $this->_handle_payment_processor_exception($e);
-        }
-        return $payment;
-    }
-
-
-    /**
-     * _handle_payment_processor_exception
-     *
-     * @access protected
-     * @param \Exception $e
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    protected function _handle_payment_processor_exception(Exception $e)
-    {
-        EE_Error::add_error(
-            sprintf(
-                esc_html__(
-                    'The payment could not br processed due to a technical issue.%1$sPlease try again or contact %2$s for assistance.||The following Exception was thrown in %4$s on line %5$s:%1$s%3$s',
-                    'event_espresso'
-                ),
-                '<br/>',
-                EE_Registry::instance()->CFG->organization->get_pretty('email'),
-                $e->getMessage(),
-                $e->getFile(),
-                $e->getLine()
-            ),
-            __FILE__,
-            __FUNCTION__,
-            __LINE__
-        );
-    }
-
-
-    /**
-     * _get_return_url
-     *
-     * @access protected
-     * @param \EE_Payment_Method $payment_method
-     * @return string
-     * @throws \EE_Error
-     */
-    protected function _get_return_url(EE_Payment_Method $payment_method)
-    {
-        $return_url = '';
-        switch ($payment_method->type_obj()->payment_occurs()) {
-            case EE_PMT_Base::offsite:
-                $return_url = add_query_arg(
-                    array(
-                        'action'                     => 'process_gateway_response',
-                        'selected_method_of_payment' => $this->checkout->selected_method_of_payment,
-                        'spco_txn'                   => $this->checkout->transaction->ID(),
-                    ),
-                    $this->reg_step_url()
-                );
-                break;
-            case EE_PMT_Base::onsite:
-            case EE_PMT_Base::offline:
-                $return_url = $this->checkout->next_step->reg_step_url();
-                break;
-        }
-        return $return_url;
-    }
-
-
-    /**
-     * _validate_payment
-     *
-     * @access private
-     * @param EE_Payment $payment
-     * @return EE_Payment|FALSE
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _validate_payment($payment = null)
-    {
-        if ($this->checkout->payment_method->is_off_line()) {
-            return true;
-        }
-        // verify payment object
-        if (! $payment instanceof EE_Payment) {
-            // not a payment
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'A valid payment was not generated due to a technical issue.%1$sPlease try again or contact %2$s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        return $payment;
-    }
-
-
-    /**
-     * _post_payment_processing
-     *
-     * @access private
-     * @param EE_Payment|bool $payment
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _post_payment_processing($payment = null)
-    {
-        // Off-Line payment?
-        if ($payment === true) {
-            // $this->_setup_redirect_for_next_step();
-            return true;
-            // On-Site payment?
-        } elseif ($this->checkout->payment_method->is_on_site()) {
-            if (! $this->_process_payment_status($payment, EE_PMT_Base::onsite)) {
-                // $this->_setup_redirect_for_next_step();
-                $this->checkout->continue_reg = false;
-            }
-            // Off-Site payment?
-        } elseif ($this->checkout->payment_method->is_off_site()) {
-            // if a payment object was made and it specifies a redirect url, then we'll setup that redirect info
-            if ($payment instanceof EE_Payment && $payment->redirect_url()) {
-                do_action('AHEE_log', __CLASS__, __FUNCTION__, $payment->redirect_url(), '$payment->redirect_url()');
-                $this->checkout->redirect = true;
-                $this->checkout->redirect_form = $payment->redirect_form();
-                $this->checkout->redirect_url = $this->reg_step_url('redirect_form');
-                // set JSON response
-                $this->checkout->json_response->set_redirect_form($this->checkout->redirect_form);
-                // and lastly, let's bump the payment status to pending
-                $payment->set_status(EEM_Payment::status_id_pending);
-                $payment->save();
-            } else {
-                // not a payment
-                $this->checkout->continue_reg = false;
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            'It appears the Off Site Payment Method was not configured properly.%sPlease try again or contact %s for assistance.',
-                            'event_espresso'
-                        ),
-                        '<br/>',
-                        EE_Registry::instance()->CFG->organization->get_pretty('email')
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        } else {
-            // ummm ya... not Off-Line, not On-Site, not off-Site ????
-            $this->checkout->continue_reg = false;
-            return false;
-        }
-        return $payment;
-    }
-
-
-    /**
-     *    _process_payment_status
-     *
-     * @access private
-     * @type    EE_Payment $payment
-     * @param string       $payment_occurs
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _process_payment_status($payment, $payment_occurs = EE_PMT_Base::offline)
-    {
-        // off-line payment? carry on
-        if ($payment_occurs === EE_PMT_Base::offline) {
-            return true;
-        }
-        // verify payment validity
-        if ($payment instanceof EE_Payment) {
-            do_action('AHEE_log', __CLASS__, __FUNCTION__, $payment->status(), '$payment->status()');
-            $msg = $payment->gateway_response();
-            // check results
-            switch ($payment->status()) {
-                // good payment
-                case EEM_Payment::status_id_approved:
-                    EE_Error::add_success(
-                        esc_html__('Your payment was processed successfully.', 'event_espresso'),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return true;
-                    break;
-                // slow payment
-                case EEM_Payment::status_id_pending:
-                    if (empty($msg)) {
-                        $msg = esc_html__(
-                            'Your payment appears to have been processed successfully, but the Instant Payment Notification has not yet been received. It should arrive shortly.',
-                            'event_espresso'
-                        );
-                    }
-                    EE_Error::add_success($msg, __FILE__, __FUNCTION__, __LINE__);
-                    return true;
-                    break;
-                // don't wanna payment
-                case EEM_Payment::status_id_cancelled:
-                    if (empty($msg)) {
-                        $msg = _n(
-                            'Payment cancelled. Please try again.',
-                            'Payment cancelled. Please try again or select another method of payment.',
-                            count($this->checkout->available_payment_methods),
-                            'event_espresso'
-                        );
-                    }
-                    EE_Error::add_attention($msg, __FILE__, __FUNCTION__, __LINE__);
-                    return false;
-                    break;
-                // not enough payment
-                case EEM_Payment::status_id_declined:
-                    if (empty($msg)) {
-                        $msg = _n(
-                            'We\'re sorry but your payment was declined. Please try again.',
-                            'We\'re sorry but your payment was declined. Please try again or select another method of payment.',
-                            count($this->checkout->available_payment_methods),
-                            'event_espresso'
-                        );
-                    }
-                    EE_Error::add_attention($msg, __FILE__, __FUNCTION__, __LINE__);
-                    return false;
-                    break;
-                // bad payment
-                case EEM_Payment::status_id_failed:
-                    if (! empty($msg)) {
-                        EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-                        return false;
-                    }
-                    // default to error below
-                    break;
-            }
-        }
-        // off-site payment gateway responses are too unreliable, so let's just assume that
-        // the payment processing is just running slower than the registrant's request
-        if ($payment_occurs === EE_PMT_Base::offsite) {
-            return true;
-        }
-        EE_Error::add_error(
-            sprintf(
-                esc_html__(
-                    'Your payment could not be processed successfully due to a technical issue.%sPlease try again or contact %s for assistance.',
-                    'event_espresso'
-                ),
-                '<br/>',
-                EE_Registry::instance()->CFG->organization->get_pretty('email')
-            ),
-            __FILE__,
-            __FUNCTION__,
-            __LINE__
-        );
-        return false;
-    }
-
-
-
-
-
-
-    /********************************************************************************************************/
-    /**********************************  PROCESS GATEWAY RESPONSE  **********************************/
-    /********************************************************************************************************/
-    /**
-     * process_gateway_response
-     * this is the return point for Off-Site Payment Methods
-     * It will attempt to "handle the IPN" if it appears that this has not already occurred,
-     * otherwise, it will load up the last payment made for the TXN.
-     * If the payment retrieved looks good, it will then either:
-     *    complete the current step and allow advancement to the next reg step
-     *        or present the payment options again
-     *
-     * @access private
-     * @return EE_Payment|FALSE
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidSessionDataException
-     */
-    public function process_gateway_response()
-    {
-        $payment = null;
-        // how have they chosen to pay?
-        $this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
-        // get EE_Payment_Method object
-        if (! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
-            $this->checkout->continue_reg = false;
-            return false;
-        }
-        if (! $this->checkout->payment_method->is_off_site()) {
-            return false;
-        }
-        $this->_validate_offsite_return();
-        // DEBUG LOG
-        // $this->checkout->log(
-        //     __CLASS__,
-        //     __FUNCTION__,
-        //     __LINE__,
-        //     array(
-        //         'selected_method_of_payment' => $this->checkout->selected_method_of_payment,
-        //         'payment_method'             => $this->checkout->payment_method,
-        //     ),
-        //     true
-        // );
-        // verify TXN
-        if ($this->checkout->transaction instanceof EE_Transaction) {
-            $gateway = $this->checkout->payment_method->type_obj()->get_gateway();
-            if (! $gateway instanceof EE_Offsite_Gateway) {
-                $this->checkout->continue_reg = false;
-                return false;
-            }
-            $payment = $this->_process_off_site_payment($gateway);
-            $payment = $this->_process_cancelled_payments($payment);
-            $payment = $this->_validate_payment($payment);
-            // if payment was not declined by the payment gateway or cancelled by the registrant
-            if ($this->_process_payment_status($payment, EE_PMT_Base::offsite)) {
-                // $this->_setup_redirect_for_next_step();
-                // store that for later
-                $this->checkout->payment = $payment;
-                // mark this reg step as completed, as long as gateway doesn't use a separate IPN request,
-                // because we will complete this step during the IPN processing then
-                if ($gateway instanceof EE_Offsite_Gateway && ! $this->handle_IPN_in_this_request()) {
-                    $this->set_completed();
-                }
-                return true;
-            }
-        }
-        // DEBUG LOG
-        // $this->checkout->log(
-        //     __CLASS__,
-        //     __FUNCTION__,
-        //     __LINE__,
-        //     array('payment' => $payment)
-        // );
-        $this->checkout->continue_reg = false;
-        return false;
-    }
-
-
-    /**
-     * _validate_return
-     *
-     * @access private
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidSessionDataException
-     */
-    private function _validate_offsite_return()
-    {
-        $TXN_ID = (int) EE_Registry::instance()->REQ->get('spco_txn', 0);
-        if ($TXN_ID !== $this->checkout->transaction->ID()) {
-            // Houston... we might have a problem
-            $invalid_TXN = false;
-            // first gather some info
-            $valid_TXN = EEM_Transaction::instance()->get_one_by_ID($TXN_ID);
-            $primary_registrant = $valid_TXN instanceof EE_Transaction
-                ? $valid_TXN->primary_registration()
-                : null;
-            // let's start by retrieving the cart for this TXN
-            $cart = $this->checkout->get_cart_for_transaction($this->checkout->transaction);
-            if ($cart instanceof EE_Cart) {
-                // verify that the current cart has tickets
-                $tickets = $cart->get_tickets();
-                if (empty($tickets)) {
-                    $invalid_TXN = true;
-                }
-            } else {
-                $invalid_TXN = true;
-            }
-            $valid_TXN_SID = $primary_registrant instanceof EE_Registration
-                ? $primary_registrant->session_ID()
-                : null;
-            // validate current Session ID and compare against valid TXN session ID
-            if ($invalid_TXN // if this is already true, then skip other checks
-                || EE_Session::instance()->id() === null
-                || (
-                    // WARNING !!!
-                    // this could be PayPal sending back duplicate requests (ya they do that)
-                    // or it **could** mean someone is simply registering AGAIN after having just done so
-                    // so now we need to determine if this current TXN looks valid or not
-                    // and whether this reg step has even been started ?
-                    EE_Session::instance()->id() === $valid_TXN_SID
-                    // really? you're half way through this reg step, but you never started it ?
-                    && $this->checkout->transaction->reg_step_completed($this->slug()) === false
-                )
-            ) {
-                $invalid_TXN = true;
-            }
-            if ($invalid_TXN) {
-                // is the valid TXN completed ?
-                if ($valid_TXN instanceof EE_Transaction) {
-                    // has this step even been started ?
-                    $reg_step_completed = $valid_TXN->reg_step_completed($this->slug());
-                    if ($reg_step_completed !== false && $reg_step_completed !== true) {
-                        // so it **looks** like this is a double request from PayPal
-                        // so let's try to pick up where we left off
-                        $this->checkout->transaction = $valid_TXN;
-                        $this->checkout->refresh_all_entities(true);
-                        return;
-                    }
-                }
-                // you appear to be lost?
-                $this->_redirect_wayward_request($primary_registrant);
-            }
-        }
-    }
-
-
-    /**
-     * _redirect_wayward_request
-     *
-     * @access private
-     * @param \EE_Registration|null $primary_registrant
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _redirect_wayward_request(EE_Registration $primary_registrant)
-    {
-        if (! $primary_registrant instanceof EE_Registration) {
-            // try redirecting based on the current TXN
-            $primary_registrant = $this->checkout->transaction instanceof EE_Transaction
-                ? $this->checkout->transaction->primary_registration()
-                : null;
-        }
-        if (! $primary_registrant instanceof EE_Registration) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'Invalid information was received from the Off-Site Payment Processor and your Transaction details could not be retrieved from the database.%1$sPlease try again or contact %2$s for assistance.',
-                        'event_espresso'
-                    ),
-                    '<br/>',
-                    EE_Registry::instance()->CFG->organization->get_pretty('email')
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // make sure transaction is not locked
-        $this->checkout->transaction->unlock();
-        wp_safe_redirect(
-            add_query_arg(
-                array(
-                    'e_reg_url_link' => $primary_registrant->reg_url_link(),
-                ),
-                $this->checkout->thank_you_page_url
-            )
-        );
-        exit();
-    }
-
-
-    /**
-     * _process_off_site_payment
-     *
-     * @access private
-     * @param \EE_Offsite_Gateway $gateway
-     * @return EE_Payment
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _process_off_site_payment(EE_Offsite_Gateway $gateway)
-    {
-        try {
-            $request_data = \EE_Registry::instance()->REQ->params();
-            // if gateway uses_separate_IPN_request, then we don't have to process the IPN manually
-            $this->set_handle_IPN_in_this_request(
-                $gateway->handle_IPN_in_this_request($request_data, false)
-            );
-            if ($this->handle_IPN_in_this_request()) {
-                // get payment details and process results
-                /** @type EE_Payment_Processor $payment_processor */
-                $payment_processor = EE_Registry::instance()->load_core('Payment_Processor');
-                $payment = $payment_processor->process_ipn(
-                    $request_data,
-                    $this->checkout->transaction,
-                    $this->checkout->payment_method,
-                    true,
-                    false
-                );
-                // $payment_source = 'process_ipn';
-            } else {
-                $payment = $this->checkout->transaction->last_payment();
-                // $payment_source = 'last_payment';
-            }
-        } catch (Exception $e) {
-            // let's just eat the exception and try to move on using any previously set payment info
-            $payment = $this->checkout->transaction->last_payment();
-            // $payment_source = 'last_payment after Exception';
-            // but if we STILL don't have a payment object
-            if (! $payment instanceof EE_Payment) {
-                // then we'll object ! ( not object like a thing... but object like what a lawyer says ! )
-                $this->_handle_payment_processor_exception($e);
-            }
-        }
-        // DEBUG LOG
-        // $this->checkout->log(
-        //     __CLASS__,
-        //     __FUNCTION__,
-        //     __LINE__,
-        //     array(
-        //         'process_ipn_payment' => $payment,
-        //         'payment_source'      => $payment_source,
-        //     )
-        // );
-        return $payment;
-    }
-
-
-    /**
-     * _process_cancelled_payments
-     * just makes sure that the payment status gets updated correctly
-     * so tha tan error isn't generated during payment validation
-     *
-     * @access private
-     * @param EE_Payment $payment
-     * @return EE_Payment | FALSE
-     * @throws \EE_Error
-     */
-    private function _process_cancelled_payments($payment = null)
-    {
-        if ($payment instanceof EE_Payment
-            && isset($_REQUEST['ee_cancel_payment'])
-            && $payment->status() === EEM_Payment::status_id_failed
-        ) {
-            $payment->set_status(EEM_Payment::status_id_cancelled);
-        }
-        return $payment;
-    }
-
-
-    /**
-     *    get_transaction_details_for_gateways
-     *
-     * @access    public
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function get_transaction_details_for_gateways()
-    {
-        $txn_details = array();
-        // ya gotta make a choice man
-        if (empty($this->checkout->selected_method_of_payment)) {
-            $txn_details = array(
-                'error' => esc_html__('Please select a method of payment before proceeding.', 'event_espresso'),
-            );
-        }
-        // get EE_Payment_Method object
-        if (empty($txn_details)
-            &&
-            ! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()
-        ) {
-            $txn_details = array(
-                'selected_method_of_payment' => $this->checkout->selected_method_of_payment,
-                'error'                      => esc_html__(
-                    'A valid Payment Method could not be determined.',
-                    'event_espresso'
-                ),
-            );
-        }
-        if (empty($txn_details) && $this->checkout->transaction instanceof EE_Transaction) {
-            $return_url = $this->_get_return_url($this->checkout->payment_method);
-            $txn_details = array(
-                'TXN_ID'         => $this->checkout->transaction->ID(),
-                'TXN_timestamp'  => $this->checkout->transaction->datetime(),
-                'TXN_total'      => $this->checkout->transaction->total(),
-                'TXN_paid'       => $this->checkout->transaction->paid(),
-                'TXN_reg_steps'  => $this->checkout->transaction->reg_steps(),
-                'STS_ID'         => $this->checkout->transaction->status_ID(),
-                'PMD_ID'         => $this->checkout->transaction->payment_method_ID(),
-                'payment_amount' => $this->checkout->amount_owing,
-                'return_url'     => $return_url,
-                'cancel_url'     => add_query_arg(array('ee_cancel_payment' => true), $return_url),
-                'notify_url'     => EE_Config::instance()->core->txn_page_url(
-                    array(
-                        'e_reg_url_link'    => $this->checkout->transaction->primary_registration()->reg_url_link(),
-                        'ee_payment_method' => $this->checkout->payment_method->slug(),
-                    )
-                ),
-            );
-        }
-        echo wp_json_encode($txn_details);
-        exit();
-    }
-
-
-    /**
-     *    __sleep
-     * to conserve db space, let's remove the reg_form and the EE_Checkout object from EE_SPCO_Reg_Step objects upon
-     * serialization EE_Checkout will handle the reimplementation of itself upon waking, but we won't bother with the
-     * reg form, because if needed, it will be regenerated anyways
-     *
-     * @return array
-     */
-    public function __sleep()
-    {
-        // remove the reg form and the checkout
-        return array_diff(array_keys(get_object_vars($this)), array('reg_form', 'checkout', 'line_item_display'));
-    }
+	/**
+	 * @access protected
+	 * @var EE_Line_Item_Display $Line_Item_Display
+	 */
+	protected $line_item_display;
+
+	/**
+	 * @access protected
+	 * @var boolean $handle_IPN_in_this_request
+	 */
+	protected $handle_IPN_in_this_request = false;
+
+
+	/**
+	 *    set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function set_hooks()
+	{
+		add_filter(
+			'FHEE__SPCO__EE_Line_Item_Filter_Collection',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'add_spco_line_item_filters')
+		);
+		add_action(
+			'wp_ajax_switch_spco_billing_form',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'switch_spco_billing_form')
+		);
+		add_action(
+			'wp_ajax_nopriv_switch_spco_billing_form',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'switch_spco_billing_form')
+		);
+		add_action('wp_ajax_save_payer_details', array('EE_SPCO_Reg_Step_Payment_Options', 'save_payer_details'));
+		add_action(
+			'wp_ajax_nopriv_save_payer_details',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'save_payer_details')
+		);
+		add_action(
+			'wp_ajax_get_transaction_details_for_gateways',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'get_transaction_details')
+		);
+		add_action(
+			'wp_ajax_nopriv_get_transaction_details_for_gateways',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'get_transaction_details')
+		);
+		add_filter(
+			'FHEE__EED_Recaptcha___bypass_recaptcha__bypass_request_params_array',
+			array('EE_SPCO_Reg_Step_Payment_Options', 'bypass_recaptcha_for_load_payment_method'),
+			10,
+			1
+		);
+	}
+
+
+	/**
+	 *    ajax switch_spco_billing_form
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function switch_spco_billing_form()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('switch_payment_method');
+	}
+
+
+	/**
+	 *    ajax save_payer_details
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function save_payer_details()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('save_payer_details_via_ajax');
+	}
+
+
+	/**
+	 *    ajax get_transaction_details
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function get_transaction_details()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('get_transaction_details_for_gateways');
+	}
+
+
+	/**
+	 * bypass_recaptcha_for_load_payment_method
+	 *
+	 * @access public
+	 * @return array
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public static function bypass_recaptcha_for_load_payment_method()
+	{
+		return array(
+			'EESID'  => EE_Registry::instance()->SSN->id(),
+			'step'   => 'payment_options',
+			'action' => 'spco_billing_form',
+		);
+	}
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 * @param    EE_Checkout $checkout
+	 */
+	public function __construct(EE_Checkout $checkout)
+	{
+		$this->_slug = 'payment_options';
+		$this->_name = esc_html__('Payment Options', 'event_espresso');
+		$this->_template = SPCO_REG_STEPS_PATH . $this->_slug . DS . 'payment_options_main.template.php';
+		$this->checkout = $checkout;
+		$this->_reset_success_message();
+		$this->set_instructions(
+			esc_html__(
+				'Please select a method of payment and provide any necessary billing information before proceeding.',
+				'event_espresso'
+			)
+		);
+	}
+
+
+	/**
+	 * @return null
+	 */
+	public function line_item_display()
+	{
+		return $this->line_item_display;
+	}
+
+
+	/**
+	 * @param null $line_item_display
+	 */
+	public function set_line_item_display($line_item_display)
+	{
+		$this->line_item_display = $line_item_display;
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function handle_IPN_in_this_request()
+	{
+		return $this->handle_IPN_in_this_request;
+	}
+
+
+	/**
+	 * @param boolean $handle_IPN_in_this_request
+	 */
+	public function set_handle_IPN_in_this_request($handle_IPN_in_this_request)
+	{
+		$this->handle_IPN_in_this_request = filter_var($handle_IPN_in_this_request, FILTER_VALIDATE_BOOLEAN);
+	}
+
+
+	/**
+	 * translate_js_strings
+	 *
+	 * @return void
+	 */
+	public function translate_js_strings()
+	{
+		EE_Registry::$i18n_js_strings['no_payment_method'] = esc_html__(
+			'Please select a method of payment in order to continue.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_payment_method'] = esc_html__(
+			'A valid method of payment could not be determined. Please refresh the page and try again.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['forwarding_to_offsite'] = esc_html__(
+			'Forwarding to Secure Payment Provider.',
+			'event_espresso'
+		);
+	}
+
+
+	/**
+	 * enqueue_styles_and_scripts
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function enqueue_styles_and_scripts()
+	{
+		$transaction = $this->checkout->transaction;
+		// if the transaction isn't set or nothing is owed on it, don't enqueue any JS
+		if (! $transaction instanceof EE_Transaction || EEH_Money::compare_floats($transaction->remaining(), 0)) {
+			return;
+		}
+		foreach (EEM_Payment_Method::instance()->get_all_for_transaction(
+			$transaction,
+			EEM_Payment_Method::scope_cart
+		) as $payment_method) {
+			$type_obj = $payment_method->type_obj();
+			if ($type_obj instanceof EE_PMT_Base) {
+				$billing_form = $type_obj->generate_new_billing_form($transaction);
+				if ($billing_form instanceof EE_Form_Section_Proper) {
+					$billing_form->enqueue_js();
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * initialize_reg_step
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function initialize_reg_step()
+	{
+		// TODO: if /when we implement donations, then this will need overriding
+		if (// don't need payment options for:
+			// registrations made via the admin
+			// completed transactions
+			// overpaid transactions
+			// $ 0.00 transactions(no payment required)
+			! $this->checkout->payment_required()
+			// but do NOT remove if current action being called belongs to this reg step
+			&& ! is_callable(array($this, $this->checkout->action))
+			&& ! $this->completed()
+		) {
+			// and if so, then we no longer need the Payment Options step
+			if ($this->is_current_step()) {
+				$this->checkout->generate_reg_form = false;
+			}
+			$this->checkout->remove_reg_step($this->_slug);
+			// DEBUG LOG
+			// $this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
+			return false;
+		}
+		// load EEM_Payment_Method
+		EE_Registry::instance()->load_model('Payment_Method');
+		// get all active payment methods
+		$this->checkout->available_payment_methods = EEM_Payment_Method::instance()->get_all_for_transaction(
+			$this->checkout->transaction,
+			EEM_Payment_Method::scope_cart
+		);
+		return true;
+	}
+
+
+	/**
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidStatusException
+	 */
+	public function generate_reg_form()
+	{
+		// reset in case someone changes their mind
+		$this->_reset_selected_method_of_payment();
+		// set some defaults
+		$this->checkout->selected_method_of_payment = 'payments_closed';
+		$registrations_requiring_payment = array();
+		$registrations_for_free_events = array();
+		$registrations_requiring_pre_approval = array();
+		$sold_out_events = array();
+		$insufficient_spaces_available = array();
+		$no_payment_required = true;
+		// loop thru registrations to gather info
+		$registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
+		$ejected_registrations = EE_SPCO_Reg_Step_Payment_Options::find_registrations_that_lost_their_space(
+			$registrations,
+			$this->checkout->revisit
+		);
+		foreach ($registrations as $REG_ID => $registration) {
+			/** @var $registration EE_Registration */
+			// has this registration lost it's space ?
+			if (isset($ejected_registrations[ $REG_ID ])) {
+				if ($registration->event()->is_sold_out() || $registration->event()->is_sold_out(true)) {
+					$sold_out_events[ $registration->event()->ID() ] = $registration->event();
+				} else {
+					$insufficient_spaces_available[ $registration->event()->ID() ] = $registration->event();
+				}
+				continue;
+			}
+			// event requires admin approval
+			if ($registration->status_ID() === EEM_Registration::status_id_not_approved) {
+				// add event to list of events with pre-approval reg status
+				$registrations_requiring_pre_approval[ $REG_ID ] = $registration;
+				do_action(
+					'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__event_requires_pre_approval',
+					$registration->event(),
+					$this
+				);
+				continue;
+			}
+			if ($this->checkout->revisit
+				&& $registration->status_ID() !== EEM_Registration::status_id_approved
+				&& (
+					$registration->event()->is_sold_out()
+					|| $registration->event()->is_sold_out(true)
+				)
+			) {
+				// add event to list of events that are sold out
+				$sold_out_events[ $registration->event()->ID() ] = $registration->event();
+				do_action(
+					'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__sold_out_event',
+					$registration->event(),
+					$this
+				);
+				continue;
+			}
+			// are they allowed to pay now and is there monies owing?
+			if ($registration->owes_monies_and_can_pay()) {
+				$registrations_requiring_payment[ $REG_ID ] = $registration;
+				do_action(
+					'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__event_requires_payment',
+					$registration->event(),
+					$this
+				);
+			} elseif (! $this->checkout->revisit
+					  && $registration->status_ID() !== EEM_Registration::status_id_not_approved
+					  && $registration->ticket()->is_free()
+			) {
+				$registrations_for_free_events[ $registration->event()->ID() ] = $registration;
+			}
+		}
+		$subsections = array();
+		// now decide which template to load
+		if (! empty($sold_out_events)) {
+			$subsections['sold_out_events'] = $this->_sold_out_events($sold_out_events);
+		}
+		if (! empty($insufficient_spaces_available)) {
+			$subsections['insufficient_space'] = $this->_insufficient_spaces_available(
+				$insufficient_spaces_available
+			);
+		}
+		if (! empty($registrations_requiring_pre_approval)) {
+			$subsections['registrations_requiring_pre_approval'] = $this->_registrations_requiring_pre_approval(
+				$registrations_requiring_pre_approval
+			);
+		}
+		if (! empty($registrations_for_free_events)) {
+			$subsections['no_payment_required'] = $this->_no_payment_required($registrations_for_free_events);
+		}
+		if (! empty($registrations_requiring_payment)) {
+			if ($this->checkout->amount_owing > 0) {
+				// autoload Line_Item_Display classes
+				EEH_Autoloader::register_line_item_filter_autoloaders();
+				$line_item_filter_processor = new EE_Line_Item_Filter_Processor(
+					apply_filters(
+						'FHEE__SPCO__EE_Line_Item_Filter_Collection',
+						new EE_Line_Item_Filter_Collection()
+					),
+					$this->checkout->cart->get_grand_total()
+				);
+				/** @var EE_Line_Item $filtered_line_item_tree */
+				$filtered_line_item_tree = $line_item_filter_processor->process();
+				EEH_Autoloader::register_line_item_display_autoloaders();
+				$this->set_line_item_display(new EE_Line_Item_Display('spco'));
+				$subsections['payment_options'] = $this->_display_payment_options(
+					$this->line_item_display->display_line_item(
+						$filtered_line_item_tree,
+						array('registrations' => $registrations)
+					)
+				);
+				$this->checkout->amount_owing = $filtered_line_item_tree->total();
+				$this->_apply_registration_payments_to_amount_owing($registrations);
+			}
+			$no_payment_required = false;
+		} else {
+			$this->_hide_reg_step_submit_button_if_revisit();
+		}
+		$this->_save_selected_method_of_payment();
+
+		$subsections['default_hidden_inputs'] = $this->reg_step_hidden_inputs();
+		$subsections['extra_hidden_inputs'] = $this->_extra_hidden_inputs($no_payment_required);
+
+		return new EE_Form_Section_Proper(
+			array(
+				'name'            => $this->reg_form_name(),
+				'html_id'         => $this->reg_form_name(),
+				'subsections'     => $subsections,
+				'layout_strategy' => new EE_No_Layout(),
+			)
+		);
+	}
+
+
+	/**
+	 * add line item filters required for this reg step
+	 * these filters are applied via this line in EE_SPCO_Reg_Step_Payment_Options::set_hooks():
+	 *        add_filter( 'FHEE__SPCO__EE_Line_Item_Filter_Collection', array( 'EE_SPCO_Reg_Step_Payment_Options',
+	 *        'add_spco_line_item_filters' ) ); so any code that wants to use the same set of filters during the
+	 *        payment options reg step, can apply these filters via the following: apply_filters(
+	 *        'FHEE__SPCO__EE_Line_Item_Filter_Collection', new EE_Line_Item_Filter_Collection() ) or to an existing
+	 *        filter collection by passing that instead of instantiating a new collection
+	 *
+	 * @param \EE_Line_Item_Filter_Collection $line_item_filter_collection
+	 * @return EE_Line_Item_Filter_Collection
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidStatusException
+	 */
+	public static function add_spco_line_item_filters(EE_Line_Item_Filter_Collection $line_item_filter_collection)
+	{
+		if (! EE_Registry::instance()->SSN instanceof EE_Session) {
+			return $line_item_filter_collection;
+		}
+		if (! EE_Registry::instance()->SSN->checkout() instanceof EE_Checkout) {
+			return $line_item_filter_collection;
+		}
+		if (! EE_Registry::instance()->SSN->checkout()->transaction instanceof EE_Transaction) {
+			return $line_item_filter_collection;
+		}
+		$line_item_filter_collection->add(
+			new EE_Billable_Line_Item_Filter(
+				EE_SPCO_Reg_Step_Payment_Options::remove_ejected_registrations(
+					EE_Registry::instance()->SSN->checkout()->transaction->registrations(
+						EE_Registry::instance()->SSN->checkout()->reg_cache_where_params
+					)
+				)
+			)
+		);
+		$line_item_filter_collection->add(new EE_Non_Zero_Line_Item_Filter());
+		return $line_item_filter_collection;
+	}
+
+
+	/**
+	 * remove_ejected_registrations
+	 * if a registrant has lost their potential space at an event due to lack of payment,
+	 * then this method removes them from the list of registrations being paid for during this request
+	 *
+	 * @param \EE_Registration[] $registrations
+	 * @return EE_Registration[]
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidStatusException
+	 */
+	public static function remove_ejected_registrations(array $registrations)
+	{
+		$ejected_registrations = EE_SPCO_Reg_Step_Payment_Options::find_registrations_that_lost_their_space(
+			$registrations,
+			EE_Registry::instance()->SSN->checkout()->revisit
+		);
+		foreach ($registrations as $REG_ID => $registration) {
+			// has this registration lost it's space ?
+			if (isset($ejected_registrations[ $REG_ID ])) {
+				unset($registrations[ $REG_ID ]);
+				continue;
+			}
+		}
+		return $registrations;
+	}
+
+
+	/**
+	 * find_registrations_that_lost_their_space
+	 * If a registrant chooses an offline payment method like Invoice,
+	 * then no space is reserved for them at the event until they fully pay fo that site
+	 * (unless the event's default reg status is set to APPROVED)
+	 * if a registrant then later returns to pay, but the number of spaces available has been reduced due to sales,
+	 * then this method will determine which registrations have lost the ability to complete the reg process.
+	 *
+	 * @param \EE_Registration[] $registrations
+	 * @param bool               $revisit
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidStatusException
+	 */
+	public static function find_registrations_that_lost_their_space(array $registrations, $revisit = false)
+	{
+		// registrations per event
+		$event_reg_count = array();
+		// spaces left per event
+		$event_spaces_remaining = array();
+		// tickets left sorted by ID
+		$tickets_remaining = array();
+		// registrations that have lost their space
+		$ejected_registrations = array();
+		foreach ($registrations as $REG_ID => $registration) {
+			if ($registration->status_ID() === EEM_Registration::status_id_approved
+				|| apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Payment_Options__find_registrations_that_lost_their_space__allow_reg_payment',
+					false,
+					$registration,
+					$revisit
+				)
+			) {
+				continue;
+			}
+			$EVT_ID = $registration->event_ID();
+			$ticket = $registration->ticket();
+			if (! isset($tickets_remaining[ $ticket->ID() ])) {
+				$tickets_remaining[ $ticket->ID() ] = $ticket->remaining();
+			}
+			if ($tickets_remaining[ $ticket->ID() ] > 0) {
+				if (! isset($event_reg_count[ $EVT_ID ])) {
+					$event_reg_count[ $EVT_ID ] = 0;
+				}
+				$event_reg_count[ $EVT_ID ]++;
+				if (! isset($event_spaces_remaining[ $EVT_ID ])) {
+					$event_spaces_remaining[ $EVT_ID ] = $registration->event()->spaces_remaining_for_sale();
+				}
+			}
+			if ($revisit
+				&& ($tickets_remaining[ $ticket->ID() ] === 0
+					|| $event_reg_count[ $EVT_ID ] > $event_spaces_remaining[ $EVT_ID ]
+				)
+			) {
+				$ejected_registrations[ $REG_ID ] = $registration->event();
+				if ($registration->status_ID() !== EEM_Registration::status_id_wait_list) {
+					/** @type EE_Registration_Processor $registration_processor */
+					$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+					// at this point, we should have enough details about the registrant to consider the registration
+					// NOT incomplete
+					$registration_processor->manually_update_registration_status(
+						$registration,
+						EEM_Registration::status_id_wait_list
+					);
+				}
+			}
+		}
+		return $ejected_registrations;
+	}
+
+
+	/**
+	 * _hide_reg_step_submit_button
+	 * removes the html for the reg step submit button
+	 * by replacing it with an empty string via filter callback
+	 *
+	 * @return void
+	 */
+	protected function _adjust_registration_status_if_event_old_sold()
+	{
+	}
+
+
+	/**
+	 * _hide_reg_step_submit_button
+	 * removes the html for the reg step submit button
+	 * by replacing it with an empty string via filter callback
+	 *
+	 * @return void
+	 */
+	protected function _hide_reg_step_submit_button_if_revisit()
+	{
+		if ($this->checkout->revisit) {
+			add_filter('FHEE__EE_SPCO_Reg_Step__reg_step_submit_button__sbmt_btn_html', '__return_empty_string');
+		}
+	}
+
+
+	/**
+	 * sold_out_events
+	 * displays notices regarding events that have sold out since hte registrant first signed up
+	 *
+	 * @param \EE_Event[] $sold_out_events_array
+	 * @return \EE_Form_Section_Proper
+	 * @throws \EE_Error
+	 */
+	private function _sold_out_events($sold_out_events_array = array())
+	{
+		// set some defaults
+		$this->checkout->selected_method_of_payment = 'events_sold_out';
+		$sold_out_events = '';
+		foreach ($sold_out_events_array as $sold_out_event) {
+			$sold_out_events .= EEH_HTML::li(
+				EEH_HTML::span(
+					'  ' . $sold_out_event->name(),
+					'',
+					'dashicons dashicons-marker ee-icon-size-16 pink-text'
+				)
+			);
+		}
+		return new EE_Form_Section_Proper(
+			array(
+				'layout_strategy' => new EE_Template_Layout(
+					array(
+						'layout_template_file' => SPCO_REG_STEPS_PATH
+												  . $this->_slug
+												  . DS
+												  . 'sold_out_events.template.php',
+						'template_args'        => apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___sold_out_events__template_args',
+							array(
+								'sold_out_events'     => $sold_out_events,
+								'sold_out_events_msg' => apply_filters(
+									'FHEE__EE_SPCO_Reg_Step_Payment_Options___sold_out_events__sold_out_events_msg',
+									sprintf(
+										esc_html__(
+											'It appears that the event you were about to make a payment for has sold out since you first registered. If you have already made a partial payment towards this event, please contact the event administrator for a refund.%3$s%3$s%1$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.%2$s',
+											'event_espresso'
+										),
+										'<strong>',
+										'</strong>',
+										'<br />'
+									)
+								),
+							)
+						),
+					)
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * _insufficient_spaces_available
+	 * displays notices regarding events that do not have enough remaining spaces
+	 * to satisfy the current number of registrations looking to pay
+	 *
+	 * @param \EE_Event[] $insufficient_spaces_events_array
+	 * @return \EE_Form_Section_Proper
+	 * @throws \EE_Error
+	 */
+	private function _insufficient_spaces_available($insufficient_spaces_events_array = array())
+	{
+		// set some defaults
+		$this->checkout->selected_method_of_payment = 'invoice';
+		$insufficient_space_events = '';
+		foreach ($insufficient_spaces_events_array as $event) {
+			if ($event instanceof EE_Event) {
+				$insufficient_space_events .= EEH_HTML::li(
+					EEH_HTML::span(' ' . $event->name(), '', 'dashicons dashicons-marker ee-icon-size-16 pink-text')
+				);
+			}
+		}
+		return new EE_Form_Section_Proper(
+			array(
+				'subsections'     => array(
+					'default_hidden_inputs' => $this->reg_step_hidden_inputs(),
+					'extra_hidden_inputs'   => $this->_extra_hidden_inputs(),
+				),
+				'layout_strategy' => new EE_Template_Layout(
+					array(
+						'layout_template_file' => SPCO_REG_STEPS_PATH
+												  . $this->_slug
+												  . DS
+												  . 'sold_out_events.template.php',
+						'template_args'        => apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___insufficient_spaces_available__template_args',
+							array(
+								'sold_out_events'     => $insufficient_space_events,
+								'sold_out_events_msg' => apply_filters(
+									'FHEE__EE_SPCO_Reg_Step_Payment_Options___insufficient_spaces_available__insufficient_space_msg',
+									esc_html__(
+										'It appears that the event you were about to make a payment for has sold additional tickets since you first registered, and there are no longer enough spaces left to accommodate your selections. You may continue to pay and secure the available space(s) remaining, or simply cancel if you no longer wish to purchase. If you have already made a partial payment towards this event, please contact the event administrator for a refund.',
+										'event_espresso'
+									)
+								),
+							)
+						),
+					)
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * registrations_requiring_pre_approval
+	 *
+	 * @param array $registrations_requiring_pre_approval
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 */
+	private function _registrations_requiring_pre_approval($registrations_requiring_pre_approval = array())
+	{
+		$events_requiring_pre_approval = '';
+		foreach ($registrations_requiring_pre_approval as $registration) {
+			if ($registration instanceof EE_Registration && $registration->event() instanceof EE_Event) {
+				$events_requiring_pre_approval[ $registration->event()->ID() ] = EEH_HTML::li(
+					EEH_HTML::span(
+						'',
+						'',
+						'dashicons dashicons-marker ee-icon-size-16 orange-text'
+					)
+					. EEH_HTML::span($registration->event()->name(), '', 'orange-text')
+				);
+			}
+		}
+		return new EE_Form_Section_Proper(
+			array(
+				'layout_strategy' => new EE_Template_Layout(
+					array(
+						'layout_template_file' => SPCO_REG_STEPS_PATH
+												  . $this->_slug
+												  . DS
+												  . 'events_requiring_pre_approval.template.php', // layout_template
+						'template_args'        => apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___sold_out_events__template_args',
+							array(
+								'events_requiring_pre_approval'     => implode('', $events_requiring_pre_approval),
+								'events_requiring_pre_approval_msg' => apply_filters(
+									'FHEE__EE_SPCO_Reg_Step_Payment_Options___events_requiring_pre_approval__events_requiring_pre_approval_msg',
+									esc_html__(
+										'The following events do not require payment at this time and will not be billed during this transaction. Billing will only occur after the attendee has been approved by the event organizer. You will be notified when your registration has been processed. If this is a free event, then no billing will occur.',
+										'event_espresso'
+									)
+								),
+							)
+						),
+					)
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * _no_payment_required
+	 *
+	 * @param \EE_Event[] $registrations_for_free_events
+	 * @return \EE_Form_Section_Proper
+	 * @throws \EE_Error
+	 */
+	private function _no_payment_required($registrations_for_free_events = array())
+	{
+		// set some defaults
+		$this->checkout->selected_method_of_payment = 'no_payment_required';
+		// generate no_payment_required form
+		return new EE_Form_Section_Proper(
+			array(
+				'layout_strategy' => new EE_Template_Layout(
+					array(
+						'layout_template_file' => SPCO_REG_STEPS_PATH
+												  . $this->_slug
+												  . DS
+												  . 'no_payment_required.template.php', // layout_template
+						'template_args'        => apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___no_payment_required__template_args',
+							array(
+								'revisit'                       => $this->checkout->revisit,
+								'registrations'                 => array(),
+								'ticket_count'                  => array(),
+								'registrations_for_free_events' => $registrations_for_free_events,
+								'no_payment_required_msg'       => EEH_HTML::p(
+									esc_html__('This is a free event, so no billing will occur.', 'event_espresso')
+								),
+							)
+						),
+					)
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * _display_payment_options
+	 *
+	 * @param string $transaction_details
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _display_payment_options($transaction_details = '')
+	{
+		// has method_of_payment been set by no-js user?
+		$this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment();
+		// build payment options form
+		return apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__payment_options_form',
+			new EE_Form_Section_Proper(
+				array(
+					'subsections'     => array(
+						'before_payment_options' => apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__before_payment_options',
+							new EE_Form_Section_Proper(
+								array('layout_strategy' => new EE_Div_Per_Section_Layout())
+							)
+						),
+						'payment_options'        => $this->_setup_payment_options(),
+						'after_payment_options'  => apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__after_payment_options',
+							new EE_Form_Section_Proper(
+								array('layout_strategy' => new EE_Div_Per_Section_Layout())
+							)
+						),
+					),
+					'layout_strategy' => new EE_Template_Layout(
+						array(
+							'layout_template_file' => $this->_template,
+							'template_args'        => apply_filters(
+								'FHEE__EE_SPCO_Reg_Step_Payment_Options___display_payment_options__template_args',
+								array(
+									'reg_count'                 => $this->line_item_display->total_items(),
+									'transaction_details'       => $transaction_details,
+									'available_payment_methods' => array(),
+								)
+							),
+						)
+					),
+				)
+			)
+		);
+	}
+
+
+	/**
+	 * _extra_hidden_inputs
+	 *
+	 * @param bool $no_payment_required
+	 * @return \EE_Form_Section_Proper
+	 * @throws \EE_Error
+	 */
+	private function _extra_hidden_inputs($no_payment_required = true)
+	{
+		return new EE_Form_Section_Proper(
+			array(
+				'html_id'         => 'ee-' . $this->slug() . '-extra-hidden-inputs',
+				'layout_strategy' => new EE_Div_Per_Section_Layout(),
+				'subsections'     => array(
+					'spco_no_payment_required' => new EE_Hidden_Input(
+						array(
+							'normalization_strategy' => new EE_Boolean_Normalization(),
+							'html_name'              => 'spco_no_payment_required',
+							'html_id'                => 'spco-no-payment-required-payment_options',
+							'default'                => $no_payment_required,
+						)
+					),
+					'spco_transaction_id'      => new EE_Fixed_Hidden_Input(
+						array(
+							'normalization_strategy' => new EE_Int_Normalization(),
+							'html_name'              => 'spco_transaction_id',
+							'html_id'                => 'spco-transaction-id',
+							'default'                => $this->checkout->transaction->ID(),
+						)
+					),
+				),
+			)
+		);
+	}
+
+
+	/**
+	 *    _apply_registration_payments_to_amount_owing
+	 *
+	 * @access protected
+	 * @param array $registrations
+	 * @throws EE_Error
+	 */
+	protected function _apply_registration_payments_to_amount_owing(array $registrations)
+	{
+		$payments = array();
+		foreach ($registrations as $registration) {
+			if ($registration instanceof EE_Registration && $registration->owes_monies_and_can_pay()) {
+				$payments += $registration->registration_payments();
+			}
+		}
+		if (! empty($payments)) {
+			foreach ($payments as $payment) {
+				if ($payment instanceof EE_Registration_Payment) {
+					$this->checkout->amount_owing -= $payment->amount();
+				}
+			}
+		}
+	}
+
+
+	/**
+	 *    _reset_selected_method_of_payment
+	 *
+	 * @access    private
+	 * @param    bool $force_reset
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _reset_selected_method_of_payment($force_reset = false)
+	{
+		$reset_payment_method = $force_reset
+			? true
+			: sanitize_text_field(EE_Registry::instance()->REQ->get('reset_payment_method', false));
+		if ($reset_payment_method) {
+			$this->checkout->selected_method_of_payment = null;
+			$this->checkout->payment_method = null;
+			$this->checkout->billing_form = null;
+			$this->_save_selected_method_of_payment();
+		}
+	}
+
+
+	/**
+	 * _save_selected_method_of_payment
+	 * stores the selected_method_of_payment in the session
+	 * so that it's available for all subsequent requests including AJAX
+	 *
+	 * @access        private
+	 * @param string $selected_method_of_payment
+	 * @return void
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _save_selected_method_of_payment($selected_method_of_payment = '')
+	{
+		$selected_method_of_payment = ! empty($selected_method_of_payment)
+			? $selected_method_of_payment
+			: $this->checkout->selected_method_of_payment;
+		EE_Registry::instance()->SSN->set_session_data(
+			array('selected_method_of_payment' => $selected_method_of_payment)
+		);
+	}
+
+
+	/**
+	 * _setup_payment_options
+	 *
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function _setup_payment_options()
+	{
+		// load payment method classes
+		$this->checkout->available_payment_methods = $this->_get_available_payment_methods();
+		if (empty($this->checkout->available_payment_methods)) {
+			EE_Error::add_error(
+				apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Payment_Options___setup_payment_options__error_message_no_payment_methods',
+					sprintf(
+						esc_html__(
+							'Sorry, you cannot complete your purchase because a payment method is not active.%1$s Please contact %2$s for assistance and provide a description of the problem.',
+							'event_espresso'
+						),
+						'<br>',
+						EE_Registry::instance()->CFG->organization->get_pretty('email')
+					)
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		// switch up header depending on number of available payment methods
+		$payment_method_header = count($this->checkout->available_payment_methods) > 1
+			? apply_filters(
+				'FHEE__registration_page_payment_options__method_of_payment_hdr',
+				esc_html__('Please Select Your Method of Payment', 'event_espresso')
+			)
+			: apply_filters(
+				'FHEE__registration_page_payment_options__method_of_payment_hdr',
+				esc_html__('Method of Payment', 'event_espresso')
+			);
+		$available_payment_methods = array(
+			// display the "Payment Method" header
+			'payment_method_header' => new EE_Form_Section_HTML(
+				EEH_HTML::h4($payment_method_header, 'method-of-payment-hdr')
+			),
+		);
+		// the list of actual payment methods ( invoice, paypal, etc ) in a  ( slug => HTML )  format
+		$available_payment_method_options = array();
+		$default_payment_method_option = array();
+		// additional instructions to be displayed and hidden below payment methods (adding a clearing div to start)
+		$payment_methods_billing_info = array(
+			new EE_Form_Section_HTML(
+				EEH_HTML::div('<br />', '', '', 'clear:both;')
+			),
+		);
+		// loop through payment methods
+		foreach ($this->checkout->available_payment_methods as $payment_method) {
+			if ($payment_method instanceof EE_Payment_Method) {
+				$payment_method_button = EEH_HTML::img(
+					$payment_method->button_url(),
+					$payment_method->name(),
+					'spco-payment-method-' . $payment_method->slug() . '-btn-img',
+					'spco-payment-method-btn-img'
+				);
+				// check if any payment methods are set as default
+				// if payment method is already selected OR nothing is selected and this payment method should be
+				// open_by_default
+				if (($this->checkout->selected_method_of_payment === $payment_method->slug())
+					|| (! $this->checkout->selected_method_of_payment && $payment_method->open_by_default())
+				) {
+					$this->checkout->selected_method_of_payment = $payment_method->slug();
+					$this->_save_selected_method_of_payment();
+					$default_payment_method_option[ $payment_method->slug() ] = $payment_method_button;
+				} else {
+					$available_payment_method_options[ $payment_method->slug() ] = $payment_method_button;
+				}
+				$payment_methods_billing_info[ $payment_method->slug(
+				) . '-info' ] = $this->_payment_method_billing_info(
+					$payment_method
+				);
+			}
+		}
+		// prepend available_payment_method_options with default_payment_method_option so that it appears first in list
+		// of PMs
+		$available_payment_method_options = $default_payment_method_option + $available_payment_method_options;
+		// now generate the actual form  inputs
+		$available_payment_methods['available_payment_methods'] = $this->_available_payment_method_inputs(
+			$available_payment_method_options
+		);
+		$available_payment_methods += $payment_methods_billing_info;
+		// build the available payment methods form
+		return new EE_Form_Section_Proper(
+			array(
+				'html_id'         => 'spco-available-methods-of-payment-dv',
+				'subsections'     => $available_payment_methods,
+				'layout_strategy' => new EE_Div_Per_Section_Layout(),
+			)
+		);
+	}
+
+
+	/**
+	 * _get_available_payment_methods
+	 *
+	 * @return EE_Payment_Method[]
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	protected function _get_available_payment_methods()
+	{
+		if (! empty($this->checkout->available_payment_methods)) {
+			return $this->checkout->available_payment_methods;
+		}
+		$available_payment_methods = array();
+		// load EEM_Payment_Method
+		EE_Registry::instance()->load_model('Payment_Method');
+		/** @type EEM_Payment_Method $EEM_Payment_Method */
+		$EEM_Payment_Method = EE_Registry::instance()->LIB->EEM_Payment_Method;
+		// get all active payment methods
+		$payment_methods = $EEM_Payment_Method->get_all_for_transaction(
+			$this->checkout->transaction,
+			EEM_Payment_Method::scope_cart
+		);
+		foreach ($payment_methods as $payment_method) {
+			if ($payment_method instanceof EE_Payment_Method) {
+				$available_payment_methods[ $payment_method->slug() ] = $payment_method;
+			}
+		}
+		return $available_payment_methods;
+	}
+
+
+	/**
+	 *    _available_payment_method_inputs
+	 *
+	 * @access    private
+	 * @param    array $available_payment_method_options
+	 * @return    \EE_Form_Section_Proper
+	 */
+	private function _available_payment_method_inputs($available_payment_method_options = array())
+	{
+		// generate inputs
+		return new EE_Form_Section_Proper(
+			array(
+				'html_id'         => 'ee-available-payment-method-inputs',
+				'layout_strategy' => new EE_Div_Per_Section_Layout(),
+				'subsections'     => array(
+					'' => new EE_Radio_Button_Input(
+						$available_payment_method_options,
+						array(
+							'html_name'          => 'selected_method_of_payment',
+							'html_class'         => 'spco-payment-method',
+							'default'            => $this->checkout->selected_method_of_payment,
+							'label_size'         => 11,
+							'enforce_label_size' => true,
+						)
+					),
+				),
+			)
+		);
+	}
+
+
+	/**
+	 *    _payment_method_billing_info
+	 *
+	 * @access    private
+	 * @param    EE_Payment_Method $payment_method
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _payment_method_billing_info(EE_Payment_Method $payment_method)
+	{
+		$currently_selected = $this->checkout->selected_method_of_payment === $payment_method->slug()
+			? true
+			: false;
+		// generate the billing form for payment method
+		$billing_form = $currently_selected
+			? $this->_get_billing_form_for_payment_method($payment_method)
+			: new EE_Form_Section_HTML();
+		$this->checkout->billing_form = $currently_selected
+			? $billing_form
+			: $this->checkout->billing_form;
+		// it's all in the details
+		$info_html = EEH_HTML::h3(
+			esc_html__('Important information regarding your payment', 'event_espresso'),
+			'',
+			'spco-payment-method-hdr'
+		);
+		// add some info regarding the step, either from what's saved in the admin,
+		// or a default string depending on whether the PM has a billing form or not
+		if ($payment_method->description()) {
+			$payment_method_info = $payment_method->description();
+		} elseif ($billing_form instanceof EE_Billing_Info_Form) {
+			$payment_method_info = sprintf(
+				esc_html__(
+					'Please provide the following billing information, then click the "%1$s" button below in order to proceed.',
+					'event_espresso'
+				),
+				$this->submit_button_text()
+			);
+		} else {
+			$payment_method_info = sprintf(
+				esc_html__('Please click the "%1$s" button below in order to proceed.', 'event_espresso'),
+				$this->submit_button_text()
+			);
+		}
+		$info_html .= EEH_HTML::p(
+			apply_filters(
+				'FHEE__EE_SPCO_Reg_Step_Payment_Options___payment_method_billing_info__payment_method_info',
+				$payment_method_info
+			),
+			'',
+			'spco-payment-method-desc ee-attention'
+		);
+		return new EE_Form_Section_Proper(
+			array(
+				'html_id'         => 'spco-payment-method-info-' . $payment_method->slug(),
+				'html_class'      => 'spco-payment-method-info-dv',
+				// only display the selected or default PM
+				'html_style'      => $currently_selected ? '' : 'display:none;',
+				'layout_strategy' => new EE_Div_Per_Section_Layout(),
+				'subsections'     => array(
+					'info'         => new EE_Form_Section_HTML($info_html),
+					'billing_form' => $currently_selected ? $billing_form : new EE_Form_Section_HTML(),
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * get_billing_form_html_for_payment_method
+	 *
+	 * @access public
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function get_billing_form_html_for_payment_method()
+	{
+		// how have they chosen to pay?
+		$this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
+		$this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment();
+		if (! $this->checkout->payment_method instanceof EE_Payment_Method) {
+			return false;
+		}
+		if (apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Payment_Options__registration_checkout__selected_payment_method__display_success',
+			false
+		)) {
+			EE_Error::add_success(
+				apply_filters(
+					'FHEE__Single_Page_Checkout__registration_checkout__selected_payment_method',
+					sprintf(
+						esc_html__(
+							'You have selected "%s" as your method of payment. Please note the important payment information below.',
+							'event_espresso'
+						),
+						$this->checkout->payment_method->name()
+					)
+				)
+			);
+		}
+		// now generate billing form for selected method of payment
+		$payment_method_billing_form = $this->_get_billing_form_for_payment_method($this->checkout->payment_method);
+		// fill form with attendee info if applicable
+		if ($payment_method_billing_form instanceof EE_Billing_Attendee_Info_Form
+			&& $this->checkout->transaction_has_primary_registrant()
+		) {
+			$payment_method_billing_form->populate_from_attendee(
+				$this->checkout->transaction->primary_registration()->attendee()
+			);
+		}
+		// and debug content
+		if ($payment_method_billing_form instanceof EE_Billing_Info_Form
+			&& $this->checkout->payment_method->type_obj() instanceof EE_PMT_Base
+		) {
+			$payment_method_billing_form =
+				$this->checkout->payment_method->type_obj()->apply_billing_form_debug_settings(
+					$payment_method_billing_form
+				);
+		}
+		$billing_info = $payment_method_billing_form instanceof EE_Form_Section_Proper
+			? $payment_method_billing_form->get_html()
+			: '';
+		$this->checkout->json_response->set_return_data(array('payment_method_info' => $billing_info));
+		// localize validation rules for main form
+		$this->checkout->current_step->reg_form->localize_validation_rules();
+		$this->checkout->json_response->add_validation_rules(EE_Form_Section_Proper::js_localization());
+		return true;
+	}
+
+
+	/**
+	 * _get_billing_form_for_payment_method
+	 *
+	 * @access private
+	 * @param EE_Payment_Method $payment_method
+	 * @return EE_Billing_Info_Form|EE_Form_Section_HTML
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _get_billing_form_for_payment_method(EE_Payment_Method $payment_method)
+	{
+		$billing_form = $payment_method->type_obj()->billing_form(
+			$this->checkout->transaction,
+			array('amount_owing' => $this->checkout->amount_owing)
+		);
+		if ($billing_form instanceof EE_Billing_Info_Form) {
+			if (apply_filters(
+				'FHEE__EE_SPCO_Reg_Step_Payment_Options__registration_checkout__selected_payment_method__display_success',
+				false
+			)
+				&& EE_Registry::instance()->REQ->is_set('payment_method')
+			) {
+				EE_Error::add_success(
+					apply_filters(
+						'FHEE__Single_Page_Checkout__registration_checkout__selected_payment_method',
+						sprintf(
+							esc_html__(
+								'You have selected "%s" as your method of payment. Please note the important payment information below.',
+								'event_espresso'
+							),
+							$payment_method->name()
+						)
+					)
+				);
+			}
+			return apply_filters(
+				'FHEE__EE_SPCO_Reg_Step_Payment_Options___get_billing_form_for_payment_method__billing_form',
+				$billing_form,
+				$payment_method
+			);
+		}
+		// no actual billing form, so return empty HTML form section
+		return new EE_Form_Section_HTML();
+	}
+
+
+	/**
+	 * _get_selected_method_of_payment
+	 *
+	 * @access private
+	 * @param boolean $required whether to throw an error if the "selected_method_of_payment"
+	 *                          is not found in the incoming request
+	 * @param string  $request_param
+	 * @return NULL|string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _get_selected_method_of_payment(
+		$required = false,
+		$request_param = 'selected_method_of_payment'
+	) {
+		// is selected_method_of_payment set in the request ?
+		$selected_method_of_payment = EE_Registry::instance()->REQ->get($request_param, false);
+		if ($selected_method_of_payment) {
+			// sanitize it
+			$selected_method_of_payment = is_array($selected_method_of_payment)
+				? array_shift($selected_method_of_payment)
+				: $selected_method_of_payment;
+			$selected_method_of_payment = sanitize_text_field($selected_method_of_payment);
+			// store it in the session so that it's available for all subsequent requests including AJAX
+			$this->_save_selected_method_of_payment($selected_method_of_payment);
+		} else {
+			// or is is set in the session ?
+			$selected_method_of_payment = EE_Registry::instance()->SSN->get_session_data(
+				'selected_method_of_payment'
+			);
+		}
+		// do ya really really gotta have it?
+		if (empty($selected_method_of_payment) && $required) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'The selected method of payment could not be determined.%sPlease ensure that you have selected one before proceeding.%sIf you continue to experience difficulties, then refresh your browser and try again, or contact %s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return null;
+		}
+		return $selected_method_of_payment;
+	}
+
+
+
+
+
+
+	/********************************************************************************************************/
+	/***********************************  SWITCH PAYMENT METHOD  ************************************/
+	/********************************************************************************************************/
+	/**
+	 * switch_payment_method
+	 *
+	 * @access public
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function switch_payment_method()
+	{
+		if (! $this->_verify_payment_method_is_set()) {
+			return false;
+		}
+		if (apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Payment_Options__registration_checkout__selected_payment_method__display_success',
+			false
+		)) {
+			EE_Error::add_success(
+				apply_filters(
+					'FHEE__Single_Page_Checkout__registration_checkout__selected_payment_method',
+					sprintf(
+						esc_html__(
+							'You have selected "%s" as your method of payment. Please note the important payment information below.',
+							'event_espresso'
+						),
+						$this->checkout->payment_method->name()
+					)
+				)
+			);
+		}
+		// generate billing form for selected method of payment if it hasn't been done already
+		if ($this->checkout->payment_method->type_obj()->has_billing_form()) {
+			$this->checkout->billing_form = $this->_get_billing_form_for_payment_method(
+				$this->checkout->payment_method
+			);
+		}
+		// fill form with attendee info if applicable
+		if (apply_filters(
+			'FHEE__populate_billing_form_fields_from_attendee',
+			(
+				$this->checkout->billing_form instanceof EE_Billing_Attendee_Info_Form
+				&& $this->checkout->transaction_has_primary_registrant()
+			),
+			$this->checkout->billing_form,
+			$this->checkout->transaction
+		)
+		) {
+			$this->checkout->billing_form->populate_from_attendee(
+				$this->checkout->transaction->primary_registration()->attendee()
+			);
+		}
+		// and debug content
+		if ($this->checkout->billing_form instanceof EE_Billing_Info_Form
+			&& $this->checkout->payment_method->type_obj() instanceof EE_PMT_Base
+		) {
+			$this->checkout->billing_form =
+				$this->checkout->payment_method->type_obj()->apply_billing_form_debug_settings(
+					$this->checkout->billing_form
+				);
+		}
+		// get html and validation rules for form
+		if ($this->checkout->billing_form instanceof EE_Form_Section_Proper) {
+			$this->checkout->json_response->set_return_data(
+				array('payment_method_info' => $this->checkout->billing_form->get_html())
+			);
+			// localize validation rules for main form
+			$this->checkout->billing_form->localize_validation_rules(true);
+			$this->checkout->json_response->add_validation_rules(EE_Form_Section_Proper::js_localization());
+		} else {
+			$this->checkout->json_response->set_return_data(array('payment_method_info' => ''));
+		}
+		// prevents advancement to next step
+		$this->checkout->continue_reg = false;
+		return true;
+	}
+
+
+	/**
+	 * _verify_payment_method_is_set
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	protected function _verify_payment_method_is_set()
+	{
+		// generate billing form for selected method of payment if it hasn't been done already
+		if (empty($this->checkout->selected_method_of_payment)) {
+			// how have they chosen to pay?
+			$this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
+		} else {
+			// choose your own adventure based on method_of_payment
+			switch ($this->checkout->selected_method_of_payment) {
+				case 'events_sold_out':
+					EE_Error::add_attention(
+						apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___verify_payment_method_is_set__sold_out_events_msg',
+							esc_html__(
+								'It appears that the event you were about to make a payment for has sold out since this form first loaded. Please contact the event administrator if you believe this is an error.',
+								'event_espresso'
+							)
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+					break;
+				case 'payments_closed':
+					EE_Error::add_attention(
+						apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___verify_payment_method_is_set__payments_closed_msg',
+							esc_html__(
+								'It appears that the event you were about to make a payment for is not accepting payments at this time. Please contact the event administrator if you believe this is an error.',
+								'event_espresso'
+							)
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+					break;
+				case 'no_payment_required':
+					EE_Error::add_attention(
+						apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___verify_payment_method_is_set__no_payment_required_msg',
+							esc_html__(
+								'It appears that the event you were about to make a payment for does not require payment. Please contact the event administrator if you believe this is an error.',
+								'event_espresso'
+							)
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+					break;
+				default:
+			}
+		}
+		// verify payment method
+		if (! $this->checkout->payment_method instanceof EE_Payment_Method) {
+			// get payment method for selected method of payment
+			$this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment();
+		}
+		return $this->checkout->payment_method instanceof EE_Payment_Method ? true : false;
+	}
+
+
+
+	/********************************************************************************************************/
+	/***************************************  SAVE PAYER DETAILS  ****************************************/
+	/********************************************************************************************************/
+	/**
+	 * save_payer_details_via_ajax
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function save_payer_details_via_ajax()
+	{
+		if (! $this->_verify_payment_method_is_set()) {
+			return;
+		}
+		// generate billing form for selected method of payment if it hasn't been done already
+		if ($this->checkout->payment_method->type_obj()->has_billing_form()) {
+			$this->checkout->billing_form = $this->_get_billing_form_for_payment_method(
+				$this->checkout->payment_method
+			);
+		}
+		// generate primary attendee from payer info if applicable
+		if (! $this->checkout->transaction_has_primary_registrant()) {
+			$attendee = $this->_create_attendee_from_request_data();
+			if ($attendee instanceof EE_Attendee) {
+				foreach ($this->checkout->transaction->registrations() as $registration) {
+					if ($registration->is_primary_registrant()) {
+						$this->checkout->primary_attendee_obj = $attendee;
+						$registration->_add_relation_to($attendee, 'Attendee');
+						$registration->set_attendee_id($attendee->ID());
+						$registration->update_cache_after_object_save('Attendee', $attendee);
+					}
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * create_attendee_from_request_data
+	 * uses info from alternate GET or POST data (such as AJAX) to create a new attendee
+	 *
+	 * @return EE_Attendee
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	protected function _create_attendee_from_request_data()
+	{
+		// get State ID
+		$STA_ID = ! empty($_REQUEST['state']) ? sanitize_text_field($_REQUEST['state']) : '';
+		if (! empty($STA_ID)) {
+			// can we get state object from name ?
+			EE_Registry::instance()->load_model('State');
+			$state = EEM_State::instance()->get_col(array(array('STA_name' => $STA_ID), 'limit' => 1), 'STA_ID');
+			$STA_ID = is_array($state) && ! empty($state) ? reset($state) : $STA_ID;
+		}
+		// get Country ISO
+		$CNT_ISO = ! empty($_REQUEST['country']) ? sanitize_text_field($_REQUEST['country']) : '';
+		if (! empty($CNT_ISO)) {
+			// can we get country object from name ?
+			EE_Registry::instance()->load_model('Country');
+			$country = EEM_Country::instance()->get_col(
+				array(array('CNT_name' => $CNT_ISO), 'limit' => 1),
+				'CNT_ISO'
+			);
+			$CNT_ISO = is_array($country) && ! empty($country) ? reset($country) : $CNT_ISO;
+		}
+		// grab attendee data
+		$attendee_data = array(
+			'ATT_fname'    => ! empty($_REQUEST['first_name']) ? sanitize_text_field($_REQUEST['first_name']) : '',
+			'ATT_lname'    => ! empty($_REQUEST['last_name']) ? sanitize_text_field($_REQUEST['last_name']) : '',
+			'ATT_email'    => ! empty($_REQUEST['email']) ? sanitize_email($_REQUEST['email']) : '',
+			'ATT_address'  => ! empty($_REQUEST['address']) ? sanitize_text_field($_REQUEST['address']) : '',
+			'ATT_address2' => ! empty($_REQUEST['address2']) ? sanitize_text_field($_REQUEST['address2']) : '',
+			'ATT_city'     => ! empty($_REQUEST['city']) ? sanitize_text_field($_REQUEST['city']) : '',
+			'STA_ID'       => $STA_ID,
+			'CNT_ISO'      => $CNT_ISO,
+			'ATT_zip'      => ! empty($_REQUEST['zip']) ? sanitize_text_field($_REQUEST['zip']) : '',
+			'ATT_phone'    => ! empty($_REQUEST['phone']) ? sanitize_text_field($_REQUEST['phone']) : '',
+		);
+		// validate the email address since it is the most important piece of info
+		if (empty($attendee_data['ATT_email']) || $attendee_data['ATT_email'] !== $_REQUEST['email']) {
+			EE_Error::add_error(
+				esc_html__('An invalid email address was submitted.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		// does this attendee already exist in the db ? we're searching using a combination of first name, last name,
+		// AND email address
+		if (! empty($attendee_data['ATT_fname'])
+			&& ! empty($attendee_data['ATT_lname'])
+			&& ! empty($attendee_data['ATT_email'])
+		) {
+			$existing_attendee = EE_Registry::instance()->LIB->EEM_Attendee->find_existing_attendee(
+				array(
+					'ATT_fname' => $attendee_data['ATT_fname'],
+					'ATT_lname' => $attendee_data['ATT_lname'],
+					'ATT_email' => $attendee_data['ATT_email'],
+				)
+			);
+			if ($existing_attendee instanceof EE_Attendee) {
+				return $existing_attendee;
+			}
+		}
+		// no existing attendee? kk let's create a new one
+		// kinda lame, but we need a first and last name to create an attendee, so use the email address if those
+		// don't exist
+		$attendee_data['ATT_fname'] = ! empty($attendee_data['ATT_fname'])
+			? $attendee_data['ATT_fname']
+			: $attendee_data['ATT_email'];
+		$attendee_data['ATT_lname'] = ! empty($attendee_data['ATT_lname'])
+			? $attendee_data['ATT_lname']
+			: $attendee_data['ATT_email'];
+		return EE_Attendee::new_instance($attendee_data);
+	}
+
+
+
+	/********************************************************************************************************/
+	/****************************************  PROCESS REG STEP  *****************************************/
+	/********************************************************************************************************/
+	/**
+	 * process_reg_step
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidStatusException
+	 */
+	public function process_reg_step()
+	{
+		// how have they chosen to pay?
+		$this->checkout->selected_method_of_payment = $this->checkout->transaction->is_free()
+			? 'no_payment_required'
+			: $this->_get_selected_method_of_payment(true);
+		// choose your own adventure based on method_of_payment
+		switch ($this->checkout->selected_method_of_payment) {
+			case 'events_sold_out':
+				$this->checkout->redirect = true;
+				$this->checkout->redirect_url = $this->checkout->cancel_page_url;
+				$this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
+				// mark this reg step as completed
+				$this->set_completed();
+				return false;
+				break;
+
+			case 'payments_closed':
+				if (apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Payment_Options__process_reg_step__payments_closed__display_success',
+					false
+				)) {
+					EE_Error::add_success(
+						esc_html__('no payment required at this time.', 'event_espresso'),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+				// mark this reg step as completed
+				$this->set_completed();
+				return true;
+				break;
+
+			case 'no_payment_required':
+				if (apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Payment_Options__process_reg_step__no_payment_required__display_success',
+					false
+				)) {
+					EE_Error::add_success(
+						esc_html__('no payment required.', 'event_espresso'),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+				// mark this reg step as completed
+				$this->set_completed();
+				return true;
+				break;
+
+			default:
+				$registrations = EE_Registry::instance()->SSN->checkout()->transaction->registrations(
+					EE_Registry::instance()->SSN->checkout()->reg_cache_where_params
+				);
+				$ejected_registrations = EE_SPCO_Reg_Step_Payment_Options::find_registrations_that_lost_their_space(
+					$registrations,
+					EE_Registry::instance()->SSN->checkout()->revisit
+				);
+				// calculate difference between the two arrays
+				$registrations = array_diff($registrations, $ejected_registrations);
+				if (empty($registrations)) {
+					$this->_redirect_because_event_sold_out();
+					return false;
+				}
+				$payment_successful = $this->_process_payment();
+				if ($payment_successful) {
+					$this->checkout->continue_reg = true;
+					$this->_maybe_set_completed($this->checkout->payment_method);
+				} else {
+					$this->checkout->continue_reg = false;
+				}
+				return $payment_successful;
+		}
+	}
+
+
+	/**
+	 * _redirect_because_event_sold_out
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _redirect_because_event_sold_out()
+	{
+		$this->checkout->continue_reg = false;
+		// set redirect URL
+		$this->checkout->redirect_url = add_query_arg(
+			array('e_reg_url_link' => $this->checkout->reg_url_link),
+			$this->checkout->current_step->reg_step_url()
+		);
+		$this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
+	}
+
+
+	/**
+	 * _maybe_set_completed
+	 *
+	 * @access protected
+	 * @param \EE_Payment_Method $payment_method
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	protected function _maybe_set_completed(EE_Payment_Method $payment_method)
+	{
+		switch ($payment_method->type_obj()->payment_occurs()) {
+			case EE_PMT_Base::offsite:
+				break;
+			case EE_PMT_Base::onsite:
+			case EE_PMT_Base::offline:
+				// mark this reg step as completed
+				$this->set_completed();
+				break;
+		}
+	}
+
+
+	/**
+	 *    update_reg_step
+	 *    this is the final step after a user  revisits the site to retry a payment
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidStatusException
+	 */
+	public function update_reg_step()
+	{
+		$success = true;
+		// if payment required
+		if ($this->checkout->transaction->total() > 0) {
+			do_action(
+				'AHEE__EE_Single_Page_Checkout__process_finalize_registration__before_gateway',
+				$this->checkout->transaction
+			);
+			// attempt payment via payment method
+			$success = $this->process_reg_step();
+		}
+		if ($success && ! $this->checkout->redirect) {
+			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn(
+				$this->checkout->transaction->ID()
+			);
+			// set return URL
+			$this->checkout->redirect_url = add_query_arg(
+				array('e_reg_url_link' => $this->checkout->reg_url_link),
+				$this->checkout->thank_you_page_url
+			);
+		}
+		return $success;
+	}
+
+
+	/**
+	 *    _process_payment
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _process_payment()
+	{
+		// basically confirm that the event hasn't sold out since they hit the page
+		if (! $this->_last_second_ticket_verifications()) {
+			return false;
+		}
+		// ya gotta make a choice man
+		if (empty($this->checkout->selected_method_of_payment)) {
+			$this->checkout->json_response->set_plz_select_method_of_payment(
+				esc_html__('Please select a method of payment before proceeding.', 'event_espresso')
+			);
+			return false;
+		}
+		// get EE_Payment_Method object
+		if (! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
+			return false;
+		}
+		// setup billing form
+		if ($this->checkout->payment_method->is_on_site()) {
+			$this->checkout->billing_form = $this->_get_billing_form_for_payment_method(
+				$this->checkout->payment_method
+			);
+			// bad billing form ?
+			if (! $this->_billing_form_is_valid()) {
+				return false;
+			}
+		}
+		// ensure primary registrant has been fully processed
+		if (! $this->_setup_primary_registrant_prior_to_payment()) {
+			return false;
+		}
+		// if session is close to expiring (under 10 minutes by default)
+		if ((time() - EE_Registry::instance()->SSN->expiration()) < EE_Registry::instance()->SSN->extension()) {
+			// add some time to session expiration so that payment can be completed
+			EE_Registry::instance()->SSN->extend_expiration();
+		}
+		/** @type EE_Transaction_Processor $transaction_processor */
+		// $transaction_processor = EE_Registry::instance()->load_class( 'Transaction_Processor' );
+		// in case a registrant leaves to an Off-Site Gateway and never returns, we want to approve any registrations
+		// for events with a default reg status of Approved
+		// $transaction_processor->toggle_registration_statuses_for_default_approved_events(
+		//      $this->checkout->transaction, $this->checkout->reg_cache_where_params
+		// );
+		// attempt payment
+		$payment = $this->_attempt_payment($this->checkout->payment_method);
+		// process results
+		$payment = $this->_validate_payment($payment);
+		$payment = $this->_post_payment_processing($payment);
+		// verify payment
+		if ($payment instanceof EE_Payment) {
+			// store that for later
+			$this->checkout->payment = $payment;
+			// we can also consider the TXN to not have been failed, so temporarily upgrade it's status to abandoned
+			$this->checkout->transaction->toggle_failed_transaction_status();
+			$payment_status = $payment->status();
+			if ($payment_status === EEM_Payment::status_id_approved
+				|| $payment_status === EEM_Payment::status_id_pending
+			) {
+				return true;
+			} else {
+				return false;
+			}
+		} elseif ($payment === true) {
+			// please note that offline payment methods will NOT make a payment,
+			// but instead just mark themselves as the PMD_ID on the transaction, and return true
+			$this->checkout->payment = $payment;
+			return true;
+		}
+		// where's my money?
+		return false;
+	}
+
+
+	/**
+	 * _last_second_ticket_verifications
+	 *
+	 * @access public
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	protected function _last_second_ticket_verifications()
+	{
+		// don't bother re-validating if not a return visit
+		if (! $this->checkout->revisit) {
+			return true;
+		}
+		$registrations = $this->checkout->transaction->registrations();
+		if (empty($registrations)) {
+			return false;
+		}
+		foreach ($registrations as $registration) {
+			if ($registration instanceof EE_Registration && ! $registration->is_approved()) {
+				$event = $registration->event_obj();
+				if ($event instanceof EE_Event && $event->is_sold_out(true)) {
+					EE_Error::add_error(
+						apply_filters(
+							'FHEE__EE_SPCO_Reg_Step_Payment_Options___last_second_ticket_verifications__sold_out_events_msg',
+							sprintf(
+								esc_html__(
+									'It appears that the %1$s event that you were about to make a payment for has sold out since you first registered and/or arrived at this page. Please refresh the page and try again. If you have already made a partial payment towards this event, please contact the event administrator for a refund.',
+									'event_espresso'
+								),
+								$event->name()
+							)
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+
+	/**
+	 * redirect_form
+	 *
+	 * @access public
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function redirect_form()
+	{
+		$payment_method_billing_info = $this->_payment_method_billing_info(
+			$this->_get_payment_method_for_selected_method_of_payment()
+		);
+		$html = $payment_method_billing_info->get_html();
+		$html .= $this->checkout->redirect_form;
+		EE_Registry::instance()->REQ->add_output($html);
+		return true;
+	}
+
+
+	/**
+	 * _billing_form_is_valid
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	private function _billing_form_is_valid()
+	{
+		if (! $this->checkout->payment_method->type_obj()->has_billing_form()) {
+			return true;
+		}
+		if ($this->checkout->billing_form instanceof EE_Billing_Info_Form) {
+			if ($this->checkout->billing_form->was_submitted()) {
+				$this->checkout->billing_form->receive_form_submission();
+				if ($this->checkout->billing_form->is_valid()) {
+					return true;
+				}
+				$validation_errors = $this->checkout->billing_form->get_validation_errors_accumulated();
+				$error_strings = array();
+				foreach ($validation_errors as $validation_error) {
+					if ($validation_error instanceof EE_Validation_Error) {
+						$form_section = $validation_error->get_form_section();
+						if ($form_section instanceof EE_Form_Input_Base) {
+							$label = $form_section->html_label_text();
+						} elseif ($form_section instanceof EE_Form_Section_Base) {
+							$label = $form_section->name();
+						} else {
+							$label = esc_html__('Validation Error', 'event_espresso');
+						}
+						$error_strings[] = sprintf('%1$s: %2$s', $label, $validation_error->getMessage());
+					}
+				}
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							'One or more billing form inputs are invalid and require correction before proceeding. %1$s %2$s',
+							'event_espresso'
+						),
+						'<br/>',
+						implode('<br/>', $error_strings)
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			} else {
+				EE_Error::add_error(
+					esc_html__(
+						'The billing form was not submitted or something prevented it\'s submission.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		} else {
+			EE_Error::add_error(
+				esc_html__(
+					'The submitted billing form is invalid possibly due to a technical reason.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		return false;
+	}
+
+
+	/**
+	 * _setup_primary_registrant_prior_to_payment
+	 * ensures that the primary registrant has a valid attendee object created with the critical details populated
+	 * (first & last name & email) and that both the transaction object and primary registration object have been saved
+	 * plz note that any other registrations will NOT be saved at this point (because they may not have any details
+	 * yet)
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _setup_primary_registrant_prior_to_payment()
+	{
+		// check if transaction has a primary registrant and that it has a related Attendee object
+		// if not, then we need to at least gather some primary registrant data before attempting payment
+		if ($this->checkout->billing_form instanceof EE_Billing_Attendee_Info_Form
+			&& ! $this->checkout->transaction_has_primary_registrant()
+			&& ! $this->_capture_primary_registration_data_from_billing_form()
+		) {
+			return false;
+		}
+		// because saving an object clears it's cache, we need to do the chevy shuffle
+		// grab the primary_registration object
+		$primary_registration = $this->checkout->transaction->primary_registration();
+		// at this point we'll consider a TXN to not have been failed
+		$this->checkout->transaction->toggle_failed_transaction_status();
+		// save the TXN ( which clears cached copy of primary_registration)
+		$this->checkout->transaction->save();
+		// grab TXN ID and save it to the primary_registration
+		$primary_registration->set_transaction_id($this->checkout->transaction->ID());
+		// save what we have so far
+		$primary_registration->save();
+		return true;
+	}
+
+
+	/**
+	 * _capture_primary_registration_data_from_billing_form
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _capture_primary_registration_data_from_billing_form()
+	{
+		// convert billing form data into an attendee
+		$this->checkout->primary_attendee_obj = $this->checkout->billing_form->create_attendee_from_billing_form_data();
+		if (! $this->checkout->primary_attendee_obj instanceof EE_Attendee) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'The billing form details could not be used for attendee details due to a technical issue.%sPlease try again or contact %s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		$primary_registration = $this->checkout->transaction->primary_registration();
+		if (! $primary_registration instanceof EE_Registration) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'The primary registrant for this transaction could not be determined due to a technical issue.%sPlease try again or contact %s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		if (! $primary_registration->_add_relation_to($this->checkout->primary_attendee_obj, 'Attendee')
+			  instanceof
+			  EE_Attendee
+		) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'The primary registrant could not be associated with this transaction due to a technical issue.%sPlease try again or contact %s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		/** @type EE_Registration_Processor $registration_processor */
+		$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+		// at this point, we should have enough details about the registrant to consider the registration NOT incomplete
+		$registration_processor->toggle_incomplete_registration_status_to_default($primary_registration);
+		return true;
+	}
+
+
+	/**
+	 * _get_payment_method_for_selected_method_of_payment
+	 * retrieves a valid payment method
+	 *
+	 * @access public
+	 * @return EE_Payment_Method
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _get_payment_method_for_selected_method_of_payment()
+	{
+		if ($this->checkout->selected_method_of_payment === 'events_sold_out') {
+			$this->_redirect_because_event_sold_out();
+			return null;
+		}
+		// get EE_Payment_Method object
+		if (isset($this->checkout->available_payment_methods[ $this->checkout->selected_method_of_payment ])) {
+			$payment_method = $this->checkout->available_payment_methods[ $this->checkout->selected_method_of_payment ];
+		} else {
+			// load EEM_Payment_Method
+			EE_Registry::instance()->load_model('Payment_Method');
+			/** @type EEM_Payment_Method $EEM_Payment_Method */
+			$EEM_Payment_Method = EE_Registry::instance()->LIB->EEM_Payment_Method;
+			$payment_method = $EEM_Payment_Method->get_one_by_slug($this->checkout->selected_method_of_payment);
+		}
+		// verify $payment_method
+		if (! $payment_method instanceof EE_Payment_Method) {
+			// not a payment
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'The selected method of payment could not be determined due to a technical issue.%sPlease try again or contact %s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return null;
+		}
+		// and verify it has a valid Payment_Method Type object
+		if (! $payment_method->type_obj() instanceof EE_PMT_Base) {
+			// not a payment
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'A valid payment method could not be determined due to a technical issue.%sPlease try again or contact %s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return null;
+		}
+		return $payment_method;
+	}
+
+
+	/**
+	 *    _attempt_payment
+	 *
+	 * @access    private
+	 * @type    EE_Payment_Method $payment_method
+	 * @return mixed EE_Payment | boolean
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _attempt_payment(EE_Payment_Method $payment_method)
+	{
+		$payment = null;
+		$this->checkout->transaction->save();
+		$payment_processor = EE_Registry::instance()->load_core('Payment_Processor');
+		if (! $payment_processor instanceof EE_Payment_Processor) {
+			return false;
+		}
+		try {
+			$payment_processor->set_revisit($this->checkout->revisit);
+			// generate payment object
+			$payment = $payment_processor->process_payment(
+				$payment_method,
+				$this->checkout->transaction,
+				$this->checkout->amount_owing,
+				$this->checkout->billing_form,
+				$this->_get_return_url($payment_method),
+				'CART',
+				$this->checkout->admin_request,
+				true,
+				$this->reg_step_url()
+			);
+		} catch (Exception $e) {
+			$this->_handle_payment_processor_exception($e);
+		}
+		return $payment;
+	}
+
+
+	/**
+	 * _handle_payment_processor_exception
+	 *
+	 * @access protected
+	 * @param \Exception $e
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	protected function _handle_payment_processor_exception(Exception $e)
+	{
+		EE_Error::add_error(
+			sprintf(
+				esc_html__(
+					'The payment could not br processed due to a technical issue.%1$sPlease try again or contact %2$s for assistance.||The following Exception was thrown in %4$s on line %5$s:%1$s%3$s',
+					'event_espresso'
+				),
+				'<br/>',
+				EE_Registry::instance()->CFG->organization->get_pretty('email'),
+				$e->getMessage(),
+				$e->getFile(),
+				$e->getLine()
+			),
+			__FILE__,
+			__FUNCTION__,
+			__LINE__
+		);
+	}
+
+
+	/**
+	 * _get_return_url
+	 *
+	 * @access protected
+	 * @param \EE_Payment_Method $payment_method
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	protected function _get_return_url(EE_Payment_Method $payment_method)
+	{
+		$return_url = '';
+		switch ($payment_method->type_obj()->payment_occurs()) {
+			case EE_PMT_Base::offsite:
+				$return_url = add_query_arg(
+					array(
+						'action'                     => 'process_gateway_response',
+						'selected_method_of_payment' => $this->checkout->selected_method_of_payment,
+						'spco_txn'                   => $this->checkout->transaction->ID(),
+					),
+					$this->reg_step_url()
+				);
+				break;
+			case EE_PMT_Base::onsite:
+			case EE_PMT_Base::offline:
+				$return_url = $this->checkout->next_step->reg_step_url();
+				break;
+		}
+		return $return_url;
+	}
+
+
+	/**
+	 * _validate_payment
+	 *
+	 * @access private
+	 * @param EE_Payment $payment
+	 * @return EE_Payment|FALSE
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _validate_payment($payment = null)
+	{
+		if ($this->checkout->payment_method->is_off_line()) {
+			return true;
+		}
+		// verify payment object
+		if (! $payment instanceof EE_Payment) {
+			// not a payment
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'A valid payment was not generated due to a technical issue.%1$sPlease try again or contact %2$s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		return $payment;
+	}
+
+
+	/**
+	 * _post_payment_processing
+	 *
+	 * @access private
+	 * @param EE_Payment|bool $payment
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _post_payment_processing($payment = null)
+	{
+		// Off-Line payment?
+		if ($payment === true) {
+			// $this->_setup_redirect_for_next_step();
+			return true;
+			// On-Site payment?
+		} elseif ($this->checkout->payment_method->is_on_site()) {
+			if (! $this->_process_payment_status($payment, EE_PMT_Base::onsite)) {
+				// $this->_setup_redirect_for_next_step();
+				$this->checkout->continue_reg = false;
+			}
+			// Off-Site payment?
+		} elseif ($this->checkout->payment_method->is_off_site()) {
+			// if a payment object was made and it specifies a redirect url, then we'll setup that redirect info
+			if ($payment instanceof EE_Payment && $payment->redirect_url()) {
+				do_action('AHEE_log', __CLASS__, __FUNCTION__, $payment->redirect_url(), '$payment->redirect_url()');
+				$this->checkout->redirect = true;
+				$this->checkout->redirect_form = $payment->redirect_form();
+				$this->checkout->redirect_url = $this->reg_step_url('redirect_form');
+				// set JSON response
+				$this->checkout->json_response->set_redirect_form($this->checkout->redirect_form);
+				// and lastly, let's bump the payment status to pending
+				$payment->set_status(EEM_Payment::status_id_pending);
+				$payment->save();
+			} else {
+				// not a payment
+				$this->checkout->continue_reg = false;
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							'It appears the Off Site Payment Method was not configured properly.%sPlease try again or contact %s for assistance.',
+							'event_espresso'
+						),
+						'<br/>',
+						EE_Registry::instance()->CFG->organization->get_pretty('email')
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		} else {
+			// ummm ya... not Off-Line, not On-Site, not off-Site ????
+			$this->checkout->continue_reg = false;
+			return false;
+		}
+		return $payment;
+	}
+
+
+	/**
+	 *    _process_payment_status
+	 *
+	 * @access private
+	 * @type    EE_Payment $payment
+	 * @param string       $payment_occurs
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _process_payment_status($payment, $payment_occurs = EE_PMT_Base::offline)
+	{
+		// off-line payment? carry on
+		if ($payment_occurs === EE_PMT_Base::offline) {
+			return true;
+		}
+		// verify payment validity
+		if ($payment instanceof EE_Payment) {
+			do_action('AHEE_log', __CLASS__, __FUNCTION__, $payment->status(), '$payment->status()');
+			$msg = $payment->gateway_response();
+			// check results
+			switch ($payment->status()) {
+				// good payment
+				case EEM_Payment::status_id_approved:
+					EE_Error::add_success(
+						esc_html__('Your payment was processed successfully.', 'event_espresso'),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return true;
+					break;
+				// slow payment
+				case EEM_Payment::status_id_pending:
+					if (empty($msg)) {
+						$msg = esc_html__(
+							'Your payment appears to have been processed successfully, but the Instant Payment Notification has not yet been received. It should arrive shortly.',
+							'event_espresso'
+						);
+					}
+					EE_Error::add_success($msg, __FILE__, __FUNCTION__, __LINE__);
+					return true;
+					break;
+				// don't wanna payment
+				case EEM_Payment::status_id_cancelled:
+					if (empty($msg)) {
+						$msg = _n(
+							'Payment cancelled. Please try again.',
+							'Payment cancelled. Please try again or select another method of payment.',
+							count($this->checkout->available_payment_methods),
+							'event_espresso'
+						);
+					}
+					EE_Error::add_attention($msg, __FILE__, __FUNCTION__, __LINE__);
+					return false;
+					break;
+				// not enough payment
+				case EEM_Payment::status_id_declined:
+					if (empty($msg)) {
+						$msg = _n(
+							'We\'re sorry but your payment was declined. Please try again.',
+							'We\'re sorry but your payment was declined. Please try again or select another method of payment.',
+							count($this->checkout->available_payment_methods),
+							'event_espresso'
+						);
+					}
+					EE_Error::add_attention($msg, __FILE__, __FUNCTION__, __LINE__);
+					return false;
+					break;
+				// bad payment
+				case EEM_Payment::status_id_failed:
+					if (! empty($msg)) {
+						EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+						return false;
+					}
+					// default to error below
+					break;
+			}
+		}
+		// off-site payment gateway responses are too unreliable, so let's just assume that
+		// the payment processing is just running slower than the registrant's request
+		if ($payment_occurs === EE_PMT_Base::offsite) {
+			return true;
+		}
+		EE_Error::add_error(
+			sprintf(
+				esc_html__(
+					'Your payment could not be processed successfully due to a technical issue.%sPlease try again or contact %s for assistance.',
+					'event_espresso'
+				),
+				'<br/>',
+				EE_Registry::instance()->CFG->organization->get_pretty('email')
+			),
+			__FILE__,
+			__FUNCTION__,
+			__LINE__
+		);
+		return false;
+	}
+
+
+
+
+
+
+	/********************************************************************************************************/
+	/**********************************  PROCESS GATEWAY RESPONSE  **********************************/
+	/********************************************************************************************************/
+	/**
+	 * process_gateway_response
+	 * this is the return point for Off-Site Payment Methods
+	 * It will attempt to "handle the IPN" if it appears that this has not already occurred,
+	 * otherwise, it will load up the last payment made for the TXN.
+	 * If the payment retrieved looks good, it will then either:
+	 *    complete the current step and allow advancement to the next reg step
+	 *        or present the payment options again
+	 *
+	 * @access private
+	 * @return EE_Payment|FALSE
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidSessionDataException
+	 */
+	public function process_gateway_response()
+	{
+		$payment = null;
+		// how have they chosen to pay?
+		$this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
+		// get EE_Payment_Method object
+		if (! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
+			$this->checkout->continue_reg = false;
+			return false;
+		}
+		if (! $this->checkout->payment_method->is_off_site()) {
+			return false;
+		}
+		$this->_validate_offsite_return();
+		// DEBUG LOG
+		// $this->checkout->log(
+		//     __CLASS__,
+		//     __FUNCTION__,
+		//     __LINE__,
+		//     array(
+		//         'selected_method_of_payment' => $this->checkout->selected_method_of_payment,
+		//         'payment_method'             => $this->checkout->payment_method,
+		//     ),
+		//     true
+		// );
+		// verify TXN
+		if ($this->checkout->transaction instanceof EE_Transaction) {
+			$gateway = $this->checkout->payment_method->type_obj()->get_gateway();
+			if (! $gateway instanceof EE_Offsite_Gateway) {
+				$this->checkout->continue_reg = false;
+				return false;
+			}
+			$payment = $this->_process_off_site_payment($gateway);
+			$payment = $this->_process_cancelled_payments($payment);
+			$payment = $this->_validate_payment($payment);
+			// if payment was not declined by the payment gateway or cancelled by the registrant
+			if ($this->_process_payment_status($payment, EE_PMT_Base::offsite)) {
+				// $this->_setup_redirect_for_next_step();
+				// store that for later
+				$this->checkout->payment = $payment;
+				// mark this reg step as completed, as long as gateway doesn't use a separate IPN request,
+				// because we will complete this step during the IPN processing then
+				if ($gateway instanceof EE_Offsite_Gateway && ! $this->handle_IPN_in_this_request()) {
+					$this->set_completed();
+				}
+				return true;
+			}
+		}
+		// DEBUG LOG
+		// $this->checkout->log(
+		//     __CLASS__,
+		//     __FUNCTION__,
+		//     __LINE__,
+		//     array('payment' => $payment)
+		// );
+		$this->checkout->continue_reg = false;
+		return false;
+	}
+
+
+	/**
+	 * _validate_return
+	 *
+	 * @access private
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidSessionDataException
+	 */
+	private function _validate_offsite_return()
+	{
+		$TXN_ID = (int) EE_Registry::instance()->REQ->get('spco_txn', 0);
+		if ($TXN_ID !== $this->checkout->transaction->ID()) {
+			// Houston... we might have a problem
+			$invalid_TXN = false;
+			// first gather some info
+			$valid_TXN = EEM_Transaction::instance()->get_one_by_ID($TXN_ID);
+			$primary_registrant = $valid_TXN instanceof EE_Transaction
+				? $valid_TXN->primary_registration()
+				: null;
+			// let's start by retrieving the cart for this TXN
+			$cart = $this->checkout->get_cart_for_transaction($this->checkout->transaction);
+			if ($cart instanceof EE_Cart) {
+				// verify that the current cart has tickets
+				$tickets = $cart->get_tickets();
+				if (empty($tickets)) {
+					$invalid_TXN = true;
+				}
+			} else {
+				$invalid_TXN = true;
+			}
+			$valid_TXN_SID = $primary_registrant instanceof EE_Registration
+				? $primary_registrant->session_ID()
+				: null;
+			// validate current Session ID and compare against valid TXN session ID
+			if ($invalid_TXN // if this is already true, then skip other checks
+				|| EE_Session::instance()->id() === null
+				|| (
+					// WARNING !!!
+					// this could be PayPal sending back duplicate requests (ya they do that)
+					// or it **could** mean someone is simply registering AGAIN after having just done so
+					// so now we need to determine if this current TXN looks valid or not
+					// and whether this reg step has even been started ?
+					EE_Session::instance()->id() === $valid_TXN_SID
+					// really? you're half way through this reg step, but you never started it ?
+					&& $this->checkout->transaction->reg_step_completed($this->slug()) === false
+				)
+			) {
+				$invalid_TXN = true;
+			}
+			if ($invalid_TXN) {
+				// is the valid TXN completed ?
+				if ($valid_TXN instanceof EE_Transaction) {
+					// has this step even been started ?
+					$reg_step_completed = $valid_TXN->reg_step_completed($this->slug());
+					if ($reg_step_completed !== false && $reg_step_completed !== true) {
+						// so it **looks** like this is a double request from PayPal
+						// so let's try to pick up where we left off
+						$this->checkout->transaction = $valid_TXN;
+						$this->checkout->refresh_all_entities(true);
+						return;
+					}
+				}
+				// you appear to be lost?
+				$this->_redirect_wayward_request($primary_registrant);
+			}
+		}
+	}
+
+
+	/**
+	 * _redirect_wayward_request
+	 *
+	 * @access private
+	 * @param \EE_Registration|null $primary_registrant
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _redirect_wayward_request(EE_Registration $primary_registrant)
+	{
+		if (! $primary_registrant instanceof EE_Registration) {
+			// try redirecting based on the current TXN
+			$primary_registrant = $this->checkout->transaction instanceof EE_Transaction
+				? $this->checkout->transaction->primary_registration()
+				: null;
+		}
+		if (! $primary_registrant instanceof EE_Registration) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'Invalid information was received from the Off-Site Payment Processor and your Transaction details could not be retrieved from the database.%1$sPlease try again or contact %2$s for assistance.',
+						'event_espresso'
+					),
+					'<br/>',
+					EE_Registry::instance()->CFG->organization->get_pretty('email')
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// make sure transaction is not locked
+		$this->checkout->transaction->unlock();
+		wp_safe_redirect(
+			add_query_arg(
+				array(
+					'e_reg_url_link' => $primary_registrant->reg_url_link(),
+				),
+				$this->checkout->thank_you_page_url
+			)
+		);
+		exit();
+	}
+
+
+	/**
+	 * _process_off_site_payment
+	 *
+	 * @access private
+	 * @param \EE_Offsite_Gateway $gateway
+	 * @return EE_Payment
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _process_off_site_payment(EE_Offsite_Gateway $gateway)
+	{
+		try {
+			$request_data = \EE_Registry::instance()->REQ->params();
+			// if gateway uses_separate_IPN_request, then we don't have to process the IPN manually
+			$this->set_handle_IPN_in_this_request(
+				$gateway->handle_IPN_in_this_request($request_data, false)
+			);
+			if ($this->handle_IPN_in_this_request()) {
+				// get payment details and process results
+				/** @type EE_Payment_Processor $payment_processor */
+				$payment_processor = EE_Registry::instance()->load_core('Payment_Processor');
+				$payment = $payment_processor->process_ipn(
+					$request_data,
+					$this->checkout->transaction,
+					$this->checkout->payment_method,
+					true,
+					false
+				);
+				// $payment_source = 'process_ipn';
+			} else {
+				$payment = $this->checkout->transaction->last_payment();
+				// $payment_source = 'last_payment';
+			}
+		} catch (Exception $e) {
+			// let's just eat the exception and try to move on using any previously set payment info
+			$payment = $this->checkout->transaction->last_payment();
+			// $payment_source = 'last_payment after Exception';
+			// but if we STILL don't have a payment object
+			if (! $payment instanceof EE_Payment) {
+				// then we'll object ! ( not object like a thing... but object like what a lawyer says ! )
+				$this->_handle_payment_processor_exception($e);
+			}
+		}
+		// DEBUG LOG
+		// $this->checkout->log(
+		//     __CLASS__,
+		//     __FUNCTION__,
+		//     __LINE__,
+		//     array(
+		//         'process_ipn_payment' => $payment,
+		//         'payment_source'      => $payment_source,
+		//     )
+		// );
+		return $payment;
+	}
+
+
+	/**
+	 * _process_cancelled_payments
+	 * just makes sure that the payment status gets updated correctly
+	 * so tha tan error isn't generated during payment validation
+	 *
+	 * @access private
+	 * @param EE_Payment $payment
+	 * @return EE_Payment | FALSE
+	 * @throws \EE_Error
+	 */
+	private function _process_cancelled_payments($payment = null)
+	{
+		if ($payment instanceof EE_Payment
+			&& isset($_REQUEST['ee_cancel_payment'])
+			&& $payment->status() === EEM_Payment::status_id_failed
+		) {
+			$payment->set_status(EEM_Payment::status_id_cancelled);
+		}
+		return $payment;
+	}
+
+
+	/**
+	 *    get_transaction_details_for_gateways
+	 *
+	 * @access    public
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function get_transaction_details_for_gateways()
+	{
+		$txn_details = array();
+		// ya gotta make a choice man
+		if (empty($this->checkout->selected_method_of_payment)) {
+			$txn_details = array(
+				'error' => esc_html__('Please select a method of payment before proceeding.', 'event_espresso'),
+			);
+		}
+		// get EE_Payment_Method object
+		if (empty($txn_details)
+			&&
+			! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()
+		) {
+			$txn_details = array(
+				'selected_method_of_payment' => $this->checkout->selected_method_of_payment,
+				'error'                      => esc_html__(
+					'A valid Payment Method could not be determined.',
+					'event_espresso'
+				),
+			);
+		}
+		if (empty($txn_details) && $this->checkout->transaction instanceof EE_Transaction) {
+			$return_url = $this->_get_return_url($this->checkout->payment_method);
+			$txn_details = array(
+				'TXN_ID'         => $this->checkout->transaction->ID(),
+				'TXN_timestamp'  => $this->checkout->transaction->datetime(),
+				'TXN_total'      => $this->checkout->transaction->total(),
+				'TXN_paid'       => $this->checkout->transaction->paid(),
+				'TXN_reg_steps'  => $this->checkout->transaction->reg_steps(),
+				'STS_ID'         => $this->checkout->transaction->status_ID(),
+				'PMD_ID'         => $this->checkout->transaction->payment_method_ID(),
+				'payment_amount' => $this->checkout->amount_owing,
+				'return_url'     => $return_url,
+				'cancel_url'     => add_query_arg(array('ee_cancel_payment' => true), $return_url),
+				'notify_url'     => EE_Config::instance()->core->txn_page_url(
+					array(
+						'e_reg_url_link'    => $this->checkout->transaction->primary_registration()->reg_url_link(),
+						'ee_payment_method' => $this->checkout->payment_method->slug(),
+					)
+				),
+			);
+		}
+		echo wp_json_encode($txn_details);
+		exit();
+	}
+
+
+	/**
+	 *    __sleep
+	 * to conserve db space, let's remove the reg_form and the EE_Checkout object from EE_SPCO_Reg_Step objects upon
+	 * serialization EE_Checkout will handle the reimplementation of itself upon waking, but we won't bother with the
+	 * reg form, because if needed, it will be regenerated anyways
+	 *
+	 * @return array
+	 */
+	public function __sleep()
+	{
+		// remove the reg form and the checkout
+		return array_diff(array_keys(get_object_vars($this)), array('reg_form', 'checkout', 'line_item_display'));
+	}
 }

Spacing +76 added lines, -76 removed lines

@@ -129,7 +129,7 @@ 
     {
         $this->_slug = 'payment_options';
         $this->_name = esc_html__('Payment Options', 'event_espresso');
-        $this->_template = SPCO_REG_STEPS_PATH . $this->_slug . DS . 'payment_options_main.template.php';
+        $this->_template = SPCO_REG_STEPS_PATH.$this->_slug.DS.'payment_options_main.template.php';
         $this->checkout = $checkout;
         $this->_reset_success_message();
         $this->set_instructions(
@@ -212,7 +212,7 @@ 
     {
         $transaction = $this->checkout->transaction;
         // if the transaction isn't set or nothing is owed on it, don't enqueue any JS
-        if (! $transaction instanceof EE_Transaction || EEH_Money::compare_floats($transaction->remaining(), 0)) {
+        if ( ! $transaction instanceof EE_Transaction || EEH_Money::compare_floats($transaction->remaining(), 0)) {
             return;
         }
         foreach (EEM_Payment_Method::instance()->get_all_for_transaction(
@@ -304,18 +304,18 @@ 
         foreach ($registrations as $REG_ID => $registration) {
             /** @var $registration EE_Registration */
             // has this registration lost it's space ?
-            if (isset($ejected_registrations[ $REG_ID ])) {
+            if (isset($ejected_registrations[$REG_ID])) {
                 if ($registration->event()->is_sold_out() || $registration->event()->is_sold_out(true)) {
-                    $sold_out_events[ $registration->event()->ID() ] = $registration->event();
+                    $sold_out_events[$registration->event()->ID()] = $registration->event();
                 } else {
-                    $insufficient_spaces_available[ $registration->event()->ID() ] = $registration->event();
+                    $insufficient_spaces_available[$registration->event()->ID()] = $registration->event();
                 }
                 continue;
             }
             // event requires admin approval
             if ($registration->status_ID() === EEM_Registration::status_id_not_approved) {
                 // add event to list of events with pre-approval reg status
-                $registrations_requiring_pre_approval[ $REG_ID ] = $registration;
+                $registrations_requiring_pre_approval[$REG_ID] = $registration;
                 do_action(
                     'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__event_requires_pre_approval',
                     $registration->event(),
@@ -331,7 +331,7 @@ 
                 )
             ) {
                 // add event to list of events that are sold out
-                $sold_out_events[ $registration->event()->ID() ] = $registration->event();
+                $sold_out_events[$registration->event()->ID()] = $registration->event();
                 do_action(
                     'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__sold_out_event',
                     $registration->event(),
@@ -341,38 +341,38 @@ 
             }
             // are they allowed to pay now and is there monies owing?
             if ($registration->owes_monies_and_can_pay()) {
-                $registrations_requiring_payment[ $REG_ID ] = $registration;
+                $registrations_requiring_payment[$REG_ID] = $registration;
                 do_action(
                     'AHEE__EE_SPCO_Reg_Step_Payment_Options__generate_reg_form__event_requires_payment',
                     $registration->event(),
                     $this
                 );
-            } elseif (! $this->checkout->revisit
+            } elseif ( ! $this->checkout->revisit
                       && $registration->status_ID() !== EEM_Registration::status_id_not_approved
                       && $registration->ticket()->is_free()
             ) {
-                $registrations_for_free_events[ $registration->event()->ID() ] = $registration;
+                $registrations_for_free_events[$registration->event()->ID()] = $registration;
             }
         }
         $subsections = array();
         // now decide which template to load
-        if (! empty($sold_out_events)) {
+        if ( ! empty($sold_out_events)) {
             $subsections['sold_out_events'] = $this->_sold_out_events($sold_out_events);
         }
-        if (! empty($insufficient_spaces_available)) {
+        if ( ! empty($insufficient_spaces_available)) {
             $subsections['insufficient_space'] = $this->_insufficient_spaces_available(
                 $insufficient_spaces_available
             );
         }
-        if (! empty($registrations_requiring_pre_approval)) {
+        if ( ! empty($registrations_requiring_pre_approval)) {
             $subsections['registrations_requiring_pre_approval'] = $this->_registrations_requiring_pre_approval(
                 $registrations_requiring_pre_approval
             );
         }
-        if (! empty($registrations_for_free_events)) {
+        if ( ! empty($registrations_for_free_events)) {
             $subsections['no_payment_required'] = $this->_no_payment_required($registrations_for_free_events);
         }
-        if (! empty($registrations_requiring_payment)) {
+        if ( ! empty($registrations_requiring_payment)) {
             if ($this->checkout->amount_owing > 0) {
                 // autoload Line_Item_Display classes
                 EEH_Autoloader::register_line_item_filter_autoloaders();
@@ -437,13 +437,13 @@ 
      */
     public static function add_spco_line_item_filters(EE_Line_Item_Filter_Collection $line_item_filter_collection)
     {
-        if (! EE_Registry::instance()->SSN instanceof EE_Session) {
+        if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
             return $line_item_filter_collection;
         }
-        if (! EE_Registry::instance()->SSN->checkout() instanceof EE_Checkout) {
+        if ( ! EE_Registry::instance()->SSN->checkout() instanceof EE_Checkout) {
             return $line_item_filter_collection;
         }
-        if (! EE_Registry::instance()->SSN->checkout()->transaction instanceof EE_Transaction) {
+        if ( ! EE_Registry::instance()->SSN->checkout()->transaction instanceof EE_Transaction) {
             return $line_item_filter_collection;
         }
         $line_item_filter_collection->add(
@@ -483,8 +483,8 @@ 
         );
         foreach ($registrations as $REG_ID => $registration) {
             // has this registration lost it's space ?
-            if (isset($ejected_registrations[ $REG_ID ])) {
-                unset($registrations[ $REG_ID ]);
+            if (isset($ejected_registrations[$REG_ID])) {
+                unset($registrations[$REG_ID]);
                 continue;
             }
         }
@@ -534,24 +534,24 @@ 
             }
             $EVT_ID = $registration->event_ID();
             $ticket = $registration->ticket();
-            if (! isset($tickets_remaining[ $ticket->ID() ])) {
-                $tickets_remaining[ $ticket->ID() ] = $ticket->remaining();
+            if ( ! isset($tickets_remaining[$ticket->ID()])) {
+                $tickets_remaining[$ticket->ID()] = $ticket->remaining();
             }
-            if ($tickets_remaining[ $ticket->ID() ] > 0) {
-                if (! isset($event_reg_count[ $EVT_ID ])) {
-                    $event_reg_count[ $EVT_ID ] = 0;
+            if ($tickets_remaining[$ticket->ID()] > 0) {
+                if ( ! isset($event_reg_count[$EVT_ID])) {
+                    $event_reg_count[$EVT_ID] = 0;
                 }
-                $event_reg_count[ $EVT_ID ]++;
-                if (! isset($event_spaces_remaining[ $EVT_ID ])) {
-                    $event_spaces_remaining[ $EVT_ID ] = $registration->event()->spaces_remaining_for_sale();
+                $event_reg_count[$EVT_ID]++;
+                if ( ! isset($event_spaces_remaining[$EVT_ID])) {
+                    $event_spaces_remaining[$EVT_ID] = $registration->event()->spaces_remaining_for_sale();
                 }
             }
             if ($revisit
-                && ($tickets_remaining[ $ticket->ID() ] === 0
-                    || $event_reg_count[ $EVT_ID ] > $event_spaces_remaining[ $EVT_ID ]
+                && ($tickets_remaining[$ticket->ID()] === 0
+                    || $event_reg_count[$EVT_ID] > $event_spaces_remaining[$EVT_ID]
                 )
             ) {
-                $ejected_registrations[ $REG_ID ] = $registration->event();
+                $ejected_registrations[$REG_ID] = $registration->event();
                 if ($registration->status_ID() !== EEM_Registration::status_id_wait_list) {
                     /** @type EE_Registration_Processor $registration_processor */
                     $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
@@ -611,7 +611,7 @@ 
         foreach ($sold_out_events_array as $sold_out_event) {
             $sold_out_events .= EEH_HTML::li(
                 EEH_HTML::span(
-                    '  ' . $sold_out_event->name(),
+                    '  '.$sold_out_event->name(),
                     '',
                     'dashicons dashicons-marker ee-icon-size-16 pink-text'
                 )
@@ -667,7 +667,7 @@ 
         foreach ($insufficient_spaces_events_array as $event) {
             if ($event instanceof EE_Event) {
                 $insufficient_space_events .= EEH_HTML::li(
-                    EEH_HTML::span(' ' . $event->name(), '', 'dashicons dashicons-marker ee-icon-size-16 pink-text')
+                    EEH_HTML::span(' '.$event->name(), '', 'dashicons dashicons-marker ee-icon-size-16 pink-text')
                 );
             }
         }
@@ -716,7 +716,7 @@ 
         $events_requiring_pre_approval = '';
         foreach ($registrations_requiring_pre_approval as $registration) {
             if ($registration instanceof EE_Registration && $registration->event() instanceof EE_Event) {
-                $events_requiring_pre_approval[ $registration->event()->ID() ] = EEH_HTML::li(
+                $events_requiring_pre_approval[$registration->event()->ID()] = EEH_HTML::li(
                     EEH_HTML::span(
                         '',
                         '',
@@ -857,7 +857,7 @@ 
     {
         return new EE_Form_Section_Proper(
             array(
-                'html_id'         => 'ee-' . $this->slug() . '-extra-hidden-inputs',
+                'html_id'         => 'ee-'.$this->slug().'-extra-hidden-inputs',
                 'layout_strategy' => new EE_Div_Per_Section_Layout(),
                 'subsections'     => array(
                     'spco_no_payment_required' => new EE_Hidden_Input(
@@ -897,7 +897,7 @@ 
                 $payments += $registration->registration_payments();
             }
         }
-        if (! empty($payments)) {
+        if ( ! empty($payments)) {
             foreach ($payments as $payment) {
                 if ($payment instanceof EE_Registration_Payment) {
                     $this->checkout->amount_owing -= $payment->amount();
@@ -1017,23 +1017,23 @@ 
                 $payment_method_button = EEH_HTML::img(
                     $payment_method->button_url(),
                     $payment_method->name(),
-                    'spco-payment-method-' . $payment_method->slug() . '-btn-img',
+                    'spco-payment-method-'.$payment_method->slug().'-btn-img',
                     'spco-payment-method-btn-img'
                 );
                 // check if any payment methods are set as default
                 // if payment method is already selected OR nothing is selected and this payment method should be
                 // open_by_default
                 if (($this->checkout->selected_method_of_payment === $payment_method->slug())
-                    || (! $this->checkout->selected_method_of_payment && $payment_method->open_by_default())
+                    || ( ! $this->checkout->selected_method_of_payment && $payment_method->open_by_default())
                 ) {
                     $this->checkout->selected_method_of_payment = $payment_method->slug();
                     $this->_save_selected_method_of_payment();
-                    $default_payment_method_option[ $payment_method->slug() ] = $payment_method_button;
+                    $default_payment_method_option[$payment_method->slug()] = $payment_method_button;
                 } else {
-                    $available_payment_method_options[ $payment_method->slug() ] = $payment_method_button;
+                    $available_payment_method_options[$payment_method->slug()] = $payment_method_button;
                 }
-                $payment_methods_billing_info[ $payment_method->slug(
-                ) . '-info' ] = $this->_payment_method_billing_info(
+                $payment_methods_billing_info[$payment_method->slug(
+                ).'-info'] = $this->_payment_method_billing_info(
                     $payment_method
                 );
             }
@@ -1069,7 +1069,7 @@ 
      */
     protected function _get_available_payment_methods()
     {
-        if (! empty($this->checkout->available_payment_methods)) {
+        if ( ! empty($this->checkout->available_payment_methods)) {
             return $this->checkout->available_payment_methods;
         }
         $available_payment_methods = array();
@@ -1084,7 +1084,7 @@ 
         );
         foreach ($payment_methods as $payment_method) {
             if ($payment_method instanceof EE_Payment_Method) {
-                $available_payment_methods[ $payment_method->slug() ] = $payment_method;
+                $available_payment_methods[$payment_method->slug()] = $payment_method;
             }
         }
         return $available_payment_methods;
@@ -1179,7 +1179,7 @@ 
         );
         return new EE_Form_Section_Proper(
             array(
-                'html_id'         => 'spco-payment-method-info-' . $payment_method->slug(),
+                'html_id'         => 'spco-payment-method-info-'.$payment_method->slug(),
                 'html_class'      => 'spco-payment-method-info-dv',
                 // only display the selected or default PM
                 'html_style'      => $currently_selected ? '' : 'display:none;',
@@ -1209,7 +1209,7 @@ 
         // how have they chosen to pay?
         $this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
         $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment();
-        if (! $this->checkout->payment_method instanceof EE_Payment_Method) {
+        if ( ! $this->checkout->payment_method instanceof EE_Payment_Method) {
             return false;
         }
         if (apply_filters(
@@ -1381,7 +1381,7 @@ 
      */
     public function switch_payment_method()
     {
-        if (! $this->_verify_payment_method_is_set()) {
+        if ( ! $this->_verify_payment_method_is_set()) {
             return false;
         }
         if (apply_filters(
@@ -1516,7 +1516,7 @@ 
             }
         }
         // verify payment method
-        if (! $this->checkout->payment_method instanceof EE_Payment_Method) {
+        if ( ! $this->checkout->payment_method instanceof EE_Payment_Method) {
             // get payment method for selected method of payment
             $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment();
         }
@@ -1541,7 +1541,7 @@ 
      */
     public function save_payer_details_via_ajax()
     {
-        if (! $this->_verify_payment_method_is_set()) {
+        if ( ! $this->_verify_payment_method_is_set()) {
             return;
         }
         // generate billing form for selected method of payment if it hasn't been done already
@@ -1551,7 +1551,7 @@ 
             );
         }
         // generate primary attendee from payer info if applicable
-        if (! $this->checkout->transaction_has_primary_registrant()) {
+        if ( ! $this->checkout->transaction_has_primary_registrant()) {
             $attendee = $this->_create_attendee_from_request_data();
             if ($attendee instanceof EE_Attendee) {
                 foreach ($this->checkout->transaction->registrations() as $registration) {
@@ -1582,7 +1582,7 @@ 
     {
         // get State ID
         $STA_ID = ! empty($_REQUEST['state']) ? sanitize_text_field($_REQUEST['state']) : '';
-        if (! empty($STA_ID)) {
+        if ( ! empty($STA_ID)) {
             // can we get state object from name ?
             EE_Registry::instance()->load_model('State');
             $state = EEM_State::instance()->get_col(array(array('STA_name' => $STA_ID), 'limit' => 1), 'STA_ID');
@@ -1590,7 +1590,7 @@ 
         }
         // get Country ISO
         $CNT_ISO = ! empty($_REQUEST['country']) ? sanitize_text_field($_REQUEST['country']) : '';
-        if (! empty($CNT_ISO)) {
+        if ( ! empty($CNT_ISO)) {
             // can we get country object from name ?
             EE_Registry::instance()->load_model('Country');
             $country = EEM_Country::instance()->get_col(
@@ -1623,7 +1623,7 @@ 
         }
         // does this attendee already exist in the db ? we're searching using a combination of first name, last name,
         // AND email address
-        if (! empty($attendee_data['ATT_fname'])
+        if ( ! empty($attendee_data['ATT_fname'])
             && ! empty($attendee_data['ATT_lname'])
             && ! empty($attendee_data['ATT_email'])
         ) {
@@ -1838,7 +1838,7 @@ 
     private function _process_payment()
     {
         // basically confirm that the event hasn't sold out since they hit the page
-        if (! $this->_last_second_ticket_verifications()) {
+        if ( ! $this->_last_second_ticket_verifications()) {
             return false;
         }
         // ya gotta make a choice man
@@ -1849,7 +1849,7 @@ 
             return false;
         }
         // get EE_Payment_Method object
-        if (! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
+        if ( ! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
             return false;
         }
         // setup billing form
@@ -1858,12 +1858,12 @@ 
                 $this->checkout->payment_method
             );
             // bad billing form ?
-            if (! $this->_billing_form_is_valid()) {
+            if ( ! $this->_billing_form_is_valid()) {
                 return false;
             }
         }
         // ensure primary registrant has been fully processed
-        if (! $this->_setup_primary_registrant_prior_to_payment()) {
+        if ( ! $this->_setup_primary_registrant_prior_to_payment()) {
             return false;
         }
         // if session is close to expiring (under 10 minutes by default)
@@ -1918,7 +1918,7 @@ 
     protected function _last_second_ticket_verifications()
     {
         // don't bother re-validating if not a return visit
-        if (! $this->checkout->revisit) {
+        if ( ! $this->checkout->revisit) {
             return true;
         }
         $registrations = $this->checkout->transaction->registrations();
@@ -1984,7 +1984,7 @@ 
      */
     private function _billing_form_is_valid()
     {
-        if (! $this->checkout->payment_method->type_obj()->has_billing_form()) {
+        if ( ! $this->checkout->payment_method->type_obj()->has_billing_form()) {
             return true;
         }
         if ($this->checkout->billing_form instanceof EE_Billing_Info_Form) {
@@ -2103,7 +2103,7 @@ 
     {
         // convert billing form data into an attendee
         $this->checkout->primary_attendee_obj = $this->checkout->billing_form->create_attendee_from_billing_form_data();
-        if (! $this->checkout->primary_attendee_obj instanceof EE_Attendee) {
+        if ( ! $this->checkout->primary_attendee_obj instanceof EE_Attendee) {
             EE_Error::add_error(
                 sprintf(
                     esc_html__(
@@ -2120,7 +2120,7 @@ 
             return false;
         }
         $primary_registration = $this->checkout->transaction->primary_registration();
-        if (! $primary_registration instanceof EE_Registration) {
+        if ( ! $primary_registration instanceof EE_Registration) {
             EE_Error::add_error(
                 sprintf(
                     esc_html__(
@@ -2136,7 +2136,7 @@ 
             );
             return false;
         }
-        if (! $primary_registration->_add_relation_to($this->checkout->primary_attendee_obj, 'Attendee')
+        if ( ! $primary_registration->_add_relation_to($this->checkout->primary_attendee_obj, 'Attendee')
               instanceof
               EE_Attendee
         ) {
@@ -2182,8 +2182,8 @@ 
             return null;
         }
         // get EE_Payment_Method object
-        if (isset($this->checkout->available_payment_methods[ $this->checkout->selected_method_of_payment ])) {
-            $payment_method = $this->checkout->available_payment_methods[ $this->checkout->selected_method_of_payment ];
+        if (isset($this->checkout->available_payment_methods[$this->checkout->selected_method_of_payment])) {
+            $payment_method = $this->checkout->available_payment_methods[$this->checkout->selected_method_of_payment];
         } else {
             // load EEM_Payment_Method
             EE_Registry::instance()->load_model('Payment_Method');
@@ -2192,7 +2192,7 @@ 
             $payment_method = $EEM_Payment_Method->get_one_by_slug($this->checkout->selected_method_of_payment);
         }
         // verify $payment_method
-        if (! $payment_method instanceof EE_Payment_Method) {
+        if ( ! $payment_method instanceof EE_Payment_Method) {
             // not a payment
             EE_Error::add_error(
                 sprintf(
@@ -2210,7 +2210,7 @@ 
             return null;
         }
         // and verify it has a valid Payment_Method Type object
-        if (! $payment_method->type_obj() instanceof EE_PMT_Base) {
+        if ( ! $payment_method->type_obj() instanceof EE_PMT_Base) {
             // not a payment
             EE_Error::add_error(
                 sprintf(
@@ -2248,7 +2248,7 @@ 
         $payment = null;
         $this->checkout->transaction->save();
         $payment_processor = EE_Registry::instance()->load_core('Payment_Processor');
-        if (! $payment_processor instanceof EE_Payment_Processor) {
+        if ( ! $payment_processor instanceof EE_Payment_Processor) {
             return false;
         }
         try {
@@ -2352,7 +2352,7 @@ 
             return true;
         }
         // verify payment object
-        if (! $payment instanceof EE_Payment) {
+        if ( ! $payment instanceof EE_Payment) {
             // not a payment
             EE_Error::add_error(
                 sprintf(
@@ -2392,7 +2392,7 @@ 
             return true;
             // On-Site payment?
         } elseif ($this->checkout->payment_method->is_on_site()) {
-            if (! $this->_process_payment_status($payment, EE_PMT_Base::onsite)) {
+            if ( ! $this->_process_payment_status($payment, EE_PMT_Base::onsite)) {
                 // $this->_setup_redirect_for_next_step();
                 $this->checkout->continue_reg = false;
             }
@@ -2508,7 +2508,7 @@ 
                     break;
                 // bad payment
                 case EEM_Payment::status_id_failed:
-                    if (! empty($msg)) {
+                    if ( ! empty($msg)) {
                         EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
                         return false;
                     }
@@ -2569,11 +2569,11 @@ 
         // how have they chosen to pay?
         $this->checkout->selected_method_of_payment = $this->_get_selected_method_of_payment(true);
         // get EE_Payment_Method object
-        if (! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
+        if ( ! $this->checkout->payment_method = $this->_get_payment_method_for_selected_method_of_payment()) {
             $this->checkout->continue_reg = false;
             return false;
         }
-        if (! $this->checkout->payment_method->is_off_site()) {
+        if ( ! $this->checkout->payment_method->is_off_site()) {
             return false;
         }
         $this->_validate_offsite_return();
@@ -2591,7 +2591,7 @@ 
         // verify TXN
         if ($this->checkout->transaction instanceof EE_Transaction) {
             $gateway = $this->checkout->payment_method->type_obj()->get_gateway();
-            if (! $gateway instanceof EE_Offsite_Gateway) {
+            if ( ! $gateway instanceof EE_Offsite_Gateway) {
                 $this->checkout->continue_reg = false;
                 return false;
             }
@@ -2708,13 +2708,13 @@ 
      */
     private function _redirect_wayward_request(EE_Registration $primary_registrant)
     {
-        if (! $primary_registrant instanceof EE_Registration) {
+        if ( ! $primary_registrant instanceof EE_Registration) {
             // try redirecting based on the current TXN
             $primary_registrant = $this->checkout->transaction instanceof EE_Transaction
                 ? $this->checkout->transaction->primary_registration()
                 : null;
         }
-        if (! $primary_registrant instanceof EE_Registration) {
+        if ( ! $primary_registrant instanceof EE_Registration) {
             EE_Error::add_error(
                 sprintf(
                     esc_html__(
@@ -2784,7 +2784,7 @@ 
             $payment = $this->checkout->transaction->last_payment();
             // $payment_source = 'last_payment after Exception';
             // but if we STILL don't have a payment object
-            if (! $payment instanceof EE_Payment) {
+            if ( ! $payment instanceof EE_Payment) {
                 // then we'll object ! ( not object like a thing... but object like what a lawyer says ! )
                 $this->_handle_payment_processor_exception($e);
             }

modules/single_page_checkout/reg_steps/finalize_registration/EE_SPCO_Reg_Step_Finalize_Registration.class.php

Spacing +4 added lines, -4 removed lines

@@ -92,14 +92,14 @@ 
             $txn_update_params
         );
         // check if transaction has a primary registrant and that it has a related Attendee object
-        if (! $this->_validate_primary_registrant()) {
+        if ( ! $this->_validate_primary_registrant()) {
             return false;
         }
         // you don't have to go home but you can't stay here !
         $this->checkout->redirect = true;
         $this->checkout->continue_reg = true;
         $this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
-        if (! (
+        if ( ! (
             $this->checkout->payment_method instanceof EE_Payment_Method
             && $this->checkout->payment_method->is_off_site()
         )) {
@@ -210,7 +210,7 @@ 
      */
     protected function _validate_primary_registrant()
     {
-        if (! $this->checkout->transaction_has_primary_registrant()) {
+        if ( ! $this->checkout->transaction_has_primary_registrant()) {
             EE_Error::add_error(
                 __('A valid Primary Registration for this Transaction could not be found.', 'event_espresso'),
                 __FILE__,
@@ -236,7 +236,7 @@ 
     public function update_reg_step()
     {
         EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FILE__,
+            __CLASS__.'::'.__FILE__,
             __(
                 'Can not call update_reg_step() on the Finalize Registration reg step.',
                 'event_espresso'

Indentation +236 added lines, -236 removed lines

@@ -12,240 +12,240 @@
 class EE_SPCO_Reg_Step_Finalize_Registration extends EE_SPCO_Reg_Step
 {
 
-    /**
-     *    class constructor
-     *
-     * @access    public
-     * @param    EE_Checkout $checkout
-     */
-    public function __construct(EE_Checkout $checkout)
-    {
-        $this->_slug = 'finalize_registration';
-        $this->_name = __('Finalize Registration', 'event_espresso');
-        $this->_submit_button_text = $this->_name;
-        $this->_template = '';
-        $this->checkout = $checkout;
-    }
-
-
-    public function translate_js_strings()
-    {
-    }
-
-
-    public function enqueue_styles_and_scripts()
-    {
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function initialize_reg_step()
-    {
-        // there's actually no reg form to process if this is the final step
-        if ($this->is_current_step()) {
-            $this->checkout->step = $_REQUEST['step'] = $this->slug();
-            $this->checkout->action = $_REQUEST['action'] = 'process_reg_step';
-            $this->checkout->generate_reg_form = false;
-        }
-        return true;
-    }
-
-
-    /**
-     * @return string
-     * @throws \EE_Error
-     */
-    public function generate_reg_form()
-    {
-        // create empty form so that things don't break
-        $this->reg_form = new EE_Form_Section_Proper();
-        return '';
-    }
-
-
-    /**
-     * @return boolean
-     * @throws \RuntimeException
-     * @throws \EE_Error
-     */
-    public function process_reg_step()
-    {
-        // ensure all data gets refreshed from the db
-        $this->checkout->refresh_all_entities(true);
-        // ensures that all details and statuses for transaction, registration, and payments are updated
-        $txn_update_params = $this->_finalize_transaction();
-        // maybe send messages
-        $this->_set_notification_triggers();
-        // send messages
-        /** @type EE_Registration_Processor $registration_processor */
-        $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-        $registration_processor->trigger_registration_update_notifications(
-            $this->checkout->transaction->primary_registration(),
-            $txn_update_params
-        );
-        // set a hook point
-        do_action(
-            'AHEE__EE_SPCO_Reg_Step_Finalize_Registration__process_reg_step__completed',
-            $this->checkout,
-            $txn_update_params
-        );
-        // check if transaction has a primary registrant and that it has a related Attendee object
-        if (! $this->_validate_primary_registrant()) {
-            return false;
-        }
-        // you don't have to go home but you can't stay here !
-        $this->checkout->redirect = true;
-        $this->checkout->continue_reg = true;
-        $this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
-        if (! (
-            $this->checkout->payment_method instanceof EE_Payment_Method
-            && $this->checkout->payment_method->is_off_site()
-        )) {
-            // mark this reg step as completed
-            $this->set_completed();
-        }
-        $this->checkout->set_exit_spco();
-        return true;
-    }
-
-
-    /**
-     * _finalize_transaction
-     * ensures that all details and statuses for transaction, registration, and payments are updated
-     *
-     * @return array
-     * @throws \RuntimeException
-     * @throws \EE_Error
-     */
-    protected function _finalize_transaction()
-    {
-        /** @type EE_Transaction_Processor $transaction_processor */
-        $transaction_processor = EE_Registry::instance()->load_class('Transaction_Processor');
-        // set revisit flag in txn processor
-        $transaction_processor->set_revisit($this->checkout->revisit);
-        // at this point we'll consider a TXN to not have been abandoned
-        $this->checkout->transaction->toggle_abandoned_transaction_status();
-        if ($this->checkout->cart instanceof EE_Cart) {
-            // save TXN data to the cart
-            $this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn(
-                $this->checkout->transaction->ID()
-            );
-        }
-        // maybe update status, but don't save transaction just yet
-        $this->checkout->transaction->update_status_based_on_total_paid(false);
-        // this will result in the base session properties getting saved to the TXN_Session_data field
-        $session_data = EE_Registry::instance()->SSN->get_session_data(null, true);
-        // anonymize the last part of the IP address, now that the transaction is complete (we won't be using the IP address
-        // for spam or bot detection now)
-        if (function_exists('wp_privacy_anonymize_ip') && isset($session_data['ip_address'])) {
-            $session_data['ip_address'] = wp_privacy_anonymize_ip($session_data['ip_address']);
-        }
-        $this->checkout->transaction->set_txn_session_data($session_data);
-        // update the TXN if payment conditions have changed, but do NOT trigger notifications,
-        // because we will do that in process_reg_step() after setting some more triggers
-        return $transaction_processor->update_transaction_and_registrations_after_checkout_or_payment(
-            $this->checkout->transaction,
-            $this->checkout->payment,
-            $this->checkout->reg_cache_where_params,
-            false
-        );
-    }
-
-
-    /**
-     * If request is not a revisit, and an Off-Site gateway using IPNs has NOT been selected...
-     * OR
-     * if it IS a revisit and the TXN and/or one or more REG statuses have changed...
-     * then trigger notifications
-     *
-     * @return void
-     * @throws \EE_Error
-     */
-    protected function _set_notification_triggers()
-    {
-
-        if ($this->checkout->payment_method instanceof EE_Payment_Method) {
-            // let's start with the assumption that we need to trigger notifications
-            // then toggle this to false for conditions where we know we don't need to
-            $deliver_notifications = true;
-            if (// if SPCO revisit
-                filter_var($this->checkout->revisit, FILTER_VALIDATE_BOOLEAN)
-                // and TXN or REG statuses have NOT changed due to a payment
-                && ! (
-                    $this->checkout->transaction->txn_status_updated()
-                    || $this->checkout->any_reg_status_updated()
-                )
-            ) {
-                $deliver_notifications = false;
-            }
-            if ($this->checkout->payment_method->is_off_site()) {
-                /** @var EE_Gateway $gateway */
-                $gateway = $this->checkout->payment_method->type_obj()->get_gateway();
-                // and the gateway uses a separate request to process the IPN
-                if ($gateway instanceof EE_Offsite_Gateway
-                    && $gateway->handle_IPN_in_this_request(\EE_Registry::instance()->REQ->params(), true)
-                ) {
-                    // IPN request will handle triggering notifications
-                    $deliver_notifications = false;
-                    // no really... don't send any notices in this request
-                    remove_all_filters('FHEE__EED_Messages___maybe_registration__deliver_notifications');
-                    add_filter(
-                        'FHEE__EED_Messages___maybe_registration__deliver_notifications',
-                        '__return_false',
-                        15
-                    );
-                }
-            }
-            if ($deliver_notifications) {
-                // send out notifications
-                add_filter('FHEE__EED_Messages___maybe_registration__deliver_notifications', '__return_true', 10);
-            }
-        }
-    }
-
-
-    /**
-     * check if transaction has a primary registrant and that it has a related Attendee object
-     *
-     * @return boolean
-     * @throws \EE_Error
-     */
-    protected function _validate_primary_registrant()
-    {
-        if (! $this->checkout->transaction_has_primary_registrant()) {
-            EE_Error::add_error(
-                __('A valid Primary Registration for this Transaction could not be found.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $this->checkout->redirect = false;
-            $this->checkout->continue_reg = false;
-            return false;
-        }
-        // setup URL for redirect
-        $this->checkout->redirect_url = add_query_arg(
-            array('e_reg_url_link' => $this->checkout->transaction->primary_registration()->reg_url_link()),
-            $this->checkout->thank_you_page_url
-        );
-        return true;
-    }
-
-
-    /**
-     * @return void
-     */
-    public function update_reg_step()
-    {
-        EE_Error::doing_it_wrong(
-            __CLASS__ . '::' . __FILE__,
-            __(
-                'Can not call update_reg_step() on the Finalize Registration reg step.',
-                'event_espresso'
-            ),
-            '4.6.0'
-        );
-    }
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 * @param    EE_Checkout $checkout
+	 */
+	public function __construct(EE_Checkout $checkout)
+	{
+		$this->_slug = 'finalize_registration';
+		$this->_name = __('Finalize Registration', 'event_espresso');
+		$this->_submit_button_text = $this->_name;
+		$this->_template = '';
+		$this->checkout = $checkout;
+	}
+
+
+	public function translate_js_strings()
+	{
+	}
+
+
+	public function enqueue_styles_and_scripts()
+	{
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function initialize_reg_step()
+	{
+		// there's actually no reg form to process if this is the final step
+		if ($this->is_current_step()) {
+			$this->checkout->step = $_REQUEST['step'] = $this->slug();
+			$this->checkout->action = $_REQUEST['action'] = 'process_reg_step';
+			$this->checkout->generate_reg_form = false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function generate_reg_form()
+	{
+		// create empty form so that things don't break
+		$this->reg_form = new EE_Form_Section_Proper();
+		return '';
+	}
+
+
+	/**
+	 * @return boolean
+	 * @throws \RuntimeException
+	 * @throws \EE_Error
+	 */
+	public function process_reg_step()
+	{
+		// ensure all data gets refreshed from the db
+		$this->checkout->refresh_all_entities(true);
+		// ensures that all details and statuses for transaction, registration, and payments are updated
+		$txn_update_params = $this->_finalize_transaction();
+		// maybe send messages
+		$this->_set_notification_triggers();
+		// send messages
+		/** @type EE_Registration_Processor $registration_processor */
+		$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+		$registration_processor->trigger_registration_update_notifications(
+			$this->checkout->transaction->primary_registration(),
+			$txn_update_params
+		);
+		// set a hook point
+		do_action(
+			'AHEE__EE_SPCO_Reg_Step_Finalize_Registration__process_reg_step__completed',
+			$this->checkout,
+			$txn_update_params
+		);
+		// check if transaction has a primary registrant and that it has a related Attendee object
+		if (! $this->_validate_primary_registrant()) {
+			return false;
+		}
+		// you don't have to go home but you can't stay here !
+		$this->checkout->redirect = true;
+		$this->checkout->continue_reg = true;
+		$this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
+		if (! (
+			$this->checkout->payment_method instanceof EE_Payment_Method
+			&& $this->checkout->payment_method->is_off_site()
+		)) {
+			// mark this reg step as completed
+			$this->set_completed();
+		}
+		$this->checkout->set_exit_spco();
+		return true;
+	}
+
+
+	/**
+	 * _finalize_transaction
+	 * ensures that all details and statuses for transaction, registration, and payments are updated
+	 *
+	 * @return array
+	 * @throws \RuntimeException
+	 * @throws \EE_Error
+	 */
+	protected function _finalize_transaction()
+	{
+		/** @type EE_Transaction_Processor $transaction_processor */
+		$transaction_processor = EE_Registry::instance()->load_class('Transaction_Processor');
+		// set revisit flag in txn processor
+		$transaction_processor->set_revisit($this->checkout->revisit);
+		// at this point we'll consider a TXN to not have been abandoned
+		$this->checkout->transaction->toggle_abandoned_transaction_status();
+		if ($this->checkout->cart instanceof EE_Cart) {
+			// save TXN data to the cart
+			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn(
+				$this->checkout->transaction->ID()
+			);
+		}
+		// maybe update status, but don't save transaction just yet
+		$this->checkout->transaction->update_status_based_on_total_paid(false);
+		// this will result in the base session properties getting saved to the TXN_Session_data field
+		$session_data = EE_Registry::instance()->SSN->get_session_data(null, true);
+		// anonymize the last part of the IP address, now that the transaction is complete (we won't be using the IP address
+		// for spam or bot detection now)
+		if (function_exists('wp_privacy_anonymize_ip') && isset($session_data['ip_address'])) {
+			$session_data['ip_address'] = wp_privacy_anonymize_ip($session_data['ip_address']);
+		}
+		$this->checkout->transaction->set_txn_session_data($session_data);
+		// update the TXN if payment conditions have changed, but do NOT trigger notifications,
+		// because we will do that in process_reg_step() after setting some more triggers
+		return $transaction_processor->update_transaction_and_registrations_after_checkout_or_payment(
+			$this->checkout->transaction,
+			$this->checkout->payment,
+			$this->checkout->reg_cache_where_params,
+			false
+		);
+	}
+
+
+	/**
+	 * If request is not a revisit, and an Off-Site gateway using IPNs has NOT been selected...
+	 * OR
+	 * if it IS a revisit and the TXN and/or one or more REG statuses have changed...
+	 * then trigger notifications
+	 *
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	protected function _set_notification_triggers()
+	{
+
+		if ($this->checkout->payment_method instanceof EE_Payment_Method) {
+			// let's start with the assumption that we need to trigger notifications
+			// then toggle this to false for conditions where we know we don't need to
+			$deliver_notifications = true;
+			if (// if SPCO revisit
+				filter_var($this->checkout->revisit, FILTER_VALIDATE_BOOLEAN)
+				// and TXN or REG statuses have NOT changed due to a payment
+				&& ! (
+					$this->checkout->transaction->txn_status_updated()
+					|| $this->checkout->any_reg_status_updated()
+				)
+			) {
+				$deliver_notifications = false;
+			}
+			if ($this->checkout->payment_method->is_off_site()) {
+				/** @var EE_Gateway $gateway */
+				$gateway = $this->checkout->payment_method->type_obj()->get_gateway();
+				// and the gateway uses a separate request to process the IPN
+				if ($gateway instanceof EE_Offsite_Gateway
+					&& $gateway->handle_IPN_in_this_request(\EE_Registry::instance()->REQ->params(), true)
+				) {
+					// IPN request will handle triggering notifications
+					$deliver_notifications = false;
+					// no really... don't send any notices in this request
+					remove_all_filters('FHEE__EED_Messages___maybe_registration__deliver_notifications');
+					add_filter(
+						'FHEE__EED_Messages___maybe_registration__deliver_notifications',
+						'__return_false',
+						15
+					);
+				}
+			}
+			if ($deliver_notifications) {
+				// send out notifications
+				add_filter('FHEE__EED_Messages___maybe_registration__deliver_notifications', '__return_true', 10);
+			}
+		}
+	}
+
+
+	/**
+	 * check if transaction has a primary registrant and that it has a related Attendee object
+	 *
+	 * @return boolean
+	 * @throws \EE_Error
+	 */
+	protected function _validate_primary_registrant()
+	{
+		if (! $this->checkout->transaction_has_primary_registrant()) {
+			EE_Error::add_error(
+				__('A valid Primary Registration for this Transaction could not be found.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$this->checkout->redirect = false;
+			$this->checkout->continue_reg = false;
+			return false;
+		}
+		// setup URL for redirect
+		$this->checkout->redirect_url = add_query_arg(
+			array('e_reg_url_link' => $this->checkout->transaction->primary_registration()->reg_url_link()),
+			$this->checkout->thank_you_page_url
+		);
+		return true;
+	}
+
+
+	/**
+	 * @return void
+	 */
+	public function update_reg_step()
+	{
+		EE_Error::doing_it_wrong(
+			__CLASS__ . '::' . __FILE__,
+			__(
+				'Can not call update_reg_step() on the Finalize Registration reg step.',
+				'event_espresso'
+			),
+			'4.6.0'
+		);
+	}
 }

admin_pages/registrations/EE_Attendee_Contact_List_Table.class.php

Indentation +370 added lines, -370 removed lines

@@ -12,374 +12,374 @@
  */
 class EE_Attendee_Contact_List_Table extends EE_Admin_List_Table
 {
-    /**
-     * Initial setup of data (called by parent).
-     */
-    protected function _setup_data()
-    {
-        $this->_data = $this->_view !== 'trash'
-            ? $this->_admin_page->get_attendees($this->_per_page)
-            : $this->_admin_page->get_attendees($this->_per_page, false, true);
-        $this->_all_data_count = $this->_view !== 'trash'
-            ? $this->_admin_page->get_attendees($this->_per_page, true)
-            : $this->_admin_page->get_attendees($this->_per_page, true, true);
-    }
-
-
-    /**
-     * Initial setup of properties.
-     */
-    protected function _set_properties()
-    {
-        $this->_wp_list_args = array(
-            'singular' => esc_html__('attendee', 'event_espresso'),
-            'plural'   => esc_html__('attendees', 'event_espresso'),
-            'ajax'     => true,
-            'screen'   => $this->_admin_page->get_current_screen()->id,
-        );
-
-        $this->_columns = array(
-            'cb'                 => '<input type="checkbox" />', // Render a checkbox instead of text
-            'ATT_ID'             => esc_html__('ID', 'event_espresso'),
-            'ATT_fname'          => esc_html__('First Name', 'event_espresso'),
-            'ATT_lname'          => esc_html__('Last Name', 'event_espresso'),
-            'ATT_email'          => esc_html__('Email Address', 'event_espresso'),
-            'Registration_Count' => esc_html__('# Registrations', 'event_espresso'),
-            'ATT_phone'          => esc_html__('Phone', 'event_espresso'),
-            'ATT_address'        => esc_html__('Address', 'event_espresso'),
-            'ATT_city'           => esc_html__('City', 'event_espresso'),
-            'STA_ID'             => esc_html__('State/Province', 'event_espresso'),
-            'CNT_ISO'            => esc_html__('Country', 'event_espresso'),
-        );
-
-        $this->_sortable_columns = array(
-            'ATT_ID'             => array('ATT_ID' => false),
-            'ATT_lname'          => array('ATT_lname' => true), // true means its already sorted
-            'ATT_fname'          => array('ATT_fname' => false),
-            'ATT_email'          => array('ATT_email' => false),
-            'Registration_Count' => array('Registration_Count' => false),
-            'ATT_city'           => array('ATT_city' => false),
-            'STA_ID'             => array('STA_ID' => false),
-            'CNT_ISO'            => array('CNT_ISO' => false),
-        );
-
-        $this->_hidden_columns = array(
-            'ATT_phone',
-            'ATT_address',
-            'ATT_city',
-            'STA_ID',
-            'CNT_ISO',
-        );
-    }
-
-
-    /**
-     * Initial setup of filters
-     *
-     * @return array
-     */
-    protected function _get_table_filters()
-    {
-        return array();
-    }
-
-
-    /**
-     * Initial setup of counts for views
-     *
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _add_view_counts()
-    {
-        $this->_views['in_use']['count'] = $this->_admin_page->get_attendees($this->_per_page, true);
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_delete_contacts',
-            'espresso_registrations_delete_registration'
-        )) {
-            $this->_views['trash']['count'] = $this->_admin_page->get_attendees($this->_per_page, true, true);
-        }
-    }
-
-
-    /**
-     * Get count of attendees.
-     *
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    protected function _get_attendees_count()
-    {
-        return EEM_Attendee::instance()->count();
-    }
-
-
-    /**
-     * Checkbox column
-     *
-     * @param EE_Attendee $attendee Unable to typehint this method because overrides parent.
-     * @return string
-     * @throws EE_Error
-     */
-    public function column_cb($attendee)
-    {
-        if (! $attendee instanceof EE_Attendee) {
-            return '';
-        }
-        return sprintf(
-            '<input type="checkbox" name="checkbox[%1$s]" value="%1$s" />',
-            $attendee->ID()
-        );
-    }
-
-
-    /**
-     * ATT_ID column
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws EE_Error
-     */
-    public function column_ATT_ID(EE_Attendee $attendee)
-    {
-        $content = $attendee->ID();
-        $attendee_name = $attendee instanceof EE_Attendee ? $attendee->full_name() : '';
-        $content .= '  <span class="show-on-mobile-view-only">' . $attendee_name . '</span>';
-        return $content;
-    }
-
-
-    /**
-     * ATT_lname column
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws EE_Error
-     */
-    public function column_ATT_lname(EE_Attendee $attendee)
-    {
-        // edit attendee link
-        $edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
-            array(
-                'action' => 'edit_attendee',
-                'post'   => $attendee->ID(),
-            ),
-            REG_ADMIN_URL
-        );
-        $name_link = EE_Registry::instance()->CAP->current_user_can(
-            'ee_edit_contacts',
-            'espresso_registrations_edit_attendee'
-        )
-            ? '<a href="' . $edit_lnk_url . '" title="'
-              . esc_attr__('Edit Contact', 'event_espresso') . '">'
-              . $attendee->lname() . '</a>'
-            : $attendee->lname();
-        return $name_link;
-    }
-
-
-    /**
-     * ATT_fname column
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws EE_Error
-     */
-    public function column_ATT_fname(EE_Attendee $attendee)
-    {
-        // Build row actions
-        $actions = array();
-        // edit attendee link
-        if (EE_Registry::instance()->CAP->current_user_can(
-            'ee_edit_contacts',
-            'espresso_registrations_edit_attendee'
-        )) {
-            $edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
-                array(
-                    'action' => 'edit_attendee',
-                    'post'   => $attendee->ID(),
-                ),
-                REG_ADMIN_URL
-            );
-            $actions['edit'] = '<a href="' . $edit_lnk_url . '" title="'
-                               . esc_attr__('Edit Contact', 'event_espresso') . '">'
-                               . esc_html__('Edit', 'event_espresso') . '</a>';
-        }
-
-        if ($this->_view === 'in_use') {
-            // trash attendee link
-            if (EE_Registry::instance()->CAP->current_user_can(
-                'ee_delete_contacts',
-                'espresso_registrations_trash_attendees'
-            )) {
-                $trash_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
-                    array(
-                        'action' => 'trash_attendee',
-                        'ATT_ID' => $attendee->ID(),
-                    ),
-                    REG_ADMIN_URL
-                );
-                $actions['trash'] = '<a href="' . $trash_lnk_url . '" title="'
-                                    . esc_attr__('Move Contact to Trash', 'event_espresso')
-                                    . '">' . esc_html__('Trash', 'event_espresso') . '</a>';
-            }
-        } else {
-            if (EE_Registry::instance()->CAP->current_user_can(
-                'ee_delete_contacts',
-                'espresso_registrations_restore_attendees'
-            )) {
-                // restore attendee link
-                $restore_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
-                    array(
-                        'action' => 'restore_attendees',
-                        'ATT_ID' => $attendee->ID(),
-                    ),
-                    REG_ADMIN_URL
-                );
-                $actions['restore'] = '<a href="' . $restore_lnk_url . '" title="'
-                                      . esc_attr__('Restore Contact', 'event_espresso') . '">'
-                                      . esc_html__('Restore', 'event_espresso') . '</a>';
-            }
-        }
-
-        $edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
-            array(
-                'action' => 'edit_attendee',
-                'post'   => $attendee->ID(),
-            ),
-            REG_ADMIN_URL
-        );
-        $name_link = EE_Registry::instance()->CAP->current_user_can(
-            'ee_edit_contacts',
-            'espresso_registrations_edit_attendee'
-        )
-            ? '<a href="' . $edit_lnk_url . '" title="'
-              . esc_attr__('Edit Contact', 'event_espresso') . '">' . $attendee->fname() . '</a>'
-            : $attendee->fname();
-
-        // Return the name contents
-        return sprintf('%1$s %2$s', $name_link, $this->row_actions($actions));
-    }
-
-
-    /**
-     * Email Column
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws EE_Error
-     */
-    public function column_ATT_email(EE_Attendee $attendee)
-    {
-        return '<a href="mailto:' . $attendee->email() . '">' . $attendee->email() . '</a>';
-    }
-
-
-    /**
-     * Column displaying count of registrations attached to Attendee.
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws EE_Error
-     */
-    public function column_Registration_Count(EE_Attendee $attendee)
-    {
-        $link = EEH_URL::add_query_args_and_nonce(
-            array(
-                'action' => 'default',
-                'ATT_ID' => $attendee->ID(),
-            ),
-            REG_ADMIN_URL
-        );
-        return '<a href="' . $link . '">' . $attendee->getCustomSelect('Registration_Count') . '</a>';
-    }
-
-
-    /**
-     * ATT_address column
-     *
-     * @param EE_Attendee $attendee
-     * @return mixed
-     * @throws EE_Error
-     */
-    public function column_ATT_address(EE_Attendee $attendee)
-    {
-        return $attendee->address();
-    }
-
-
-    /**
-     * ATT_city column
-     *
-     * @param EE_Attendee $attendee
-     * @return mixed
-     * @throws EE_Error
-     */
-    public function column_ATT_city(EE_Attendee $attendee)
-    {
-        return $attendee->city();
-    }
-
-
-    /**
-     * State Column
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function column_STA_ID(EE_Attendee $attendee)
-    {
-        $states = EEM_State::instance()->get_all_states();
-        $state = isset($states[ $attendee->state_ID() ])
-            ? $states[ $attendee->state_ID() ]->get('STA_name')
-            : $attendee->state_ID();
-        return ! is_numeric($state) ? $state : '';
-    }
-
-
-    /**
-     * Country Column
-     *
-     * @param EE_Attendee $attendee
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function column_CNT_ISO(EE_Attendee $attendee)
-    {
-        $countries = EEM_Country::instance()->get_all_countries();
-        $country = isset($countries[ $attendee->country_ID() ])
-            ? $countries[ $attendee->country_ID() ]->get('CNT_name')
-            : $attendee->country_ID();
-        return ! is_numeric($country) ? $country : '';
-    }
-
-
-    /**
-     * Phone Number column
-     *
-     * @param EE_Attendee $attendee
-     * @return mixed
-     * @throws EE_Error
-     */
-    public function column_ATT_phone(EE_Attendee $attendee)
-    {
-        return $attendee->phone();
-    }
+	/**
+	 * Initial setup of data (called by parent).
+	 */
+	protected function _setup_data()
+	{
+		$this->_data = $this->_view !== 'trash'
+			? $this->_admin_page->get_attendees($this->_per_page)
+			: $this->_admin_page->get_attendees($this->_per_page, false, true);
+		$this->_all_data_count = $this->_view !== 'trash'
+			? $this->_admin_page->get_attendees($this->_per_page, true)
+			: $this->_admin_page->get_attendees($this->_per_page, true, true);
+	}
+
+
+	/**
+	 * Initial setup of properties.
+	 */
+	protected function _set_properties()
+	{
+		$this->_wp_list_args = array(
+			'singular' => esc_html__('attendee', 'event_espresso'),
+			'plural'   => esc_html__('attendees', 'event_espresso'),
+			'ajax'     => true,
+			'screen'   => $this->_admin_page->get_current_screen()->id,
+		);
+
+		$this->_columns = array(
+			'cb'                 => '<input type="checkbox" />', // Render a checkbox instead of text
+			'ATT_ID'             => esc_html__('ID', 'event_espresso'),
+			'ATT_fname'          => esc_html__('First Name', 'event_espresso'),
+			'ATT_lname'          => esc_html__('Last Name', 'event_espresso'),
+			'ATT_email'          => esc_html__('Email Address', 'event_espresso'),
+			'Registration_Count' => esc_html__('# Registrations', 'event_espresso'),
+			'ATT_phone'          => esc_html__('Phone', 'event_espresso'),
+			'ATT_address'        => esc_html__('Address', 'event_espresso'),
+			'ATT_city'           => esc_html__('City', 'event_espresso'),
+			'STA_ID'             => esc_html__('State/Province', 'event_espresso'),
+			'CNT_ISO'            => esc_html__('Country', 'event_espresso'),
+		);
+
+		$this->_sortable_columns = array(
+			'ATT_ID'             => array('ATT_ID' => false),
+			'ATT_lname'          => array('ATT_lname' => true), // true means its already sorted
+			'ATT_fname'          => array('ATT_fname' => false),
+			'ATT_email'          => array('ATT_email' => false),
+			'Registration_Count' => array('Registration_Count' => false),
+			'ATT_city'           => array('ATT_city' => false),
+			'STA_ID'             => array('STA_ID' => false),
+			'CNT_ISO'            => array('CNT_ISO' => false),
+		);
+
+		$this->_hidden_columns = array(
+			'ATT_phone',
+			'ATT_address',
+			'ATT_city',
+			'STA_ID',
+			'CNT_ISO',
+		);
+	}
+
+
+	/**
+	 * Initial setup of filters
+	 *
+	 * @return array
+	 */
+	protected function _get_table_filters()
+	{
+		return array();
+	}
+
+
+	/**
+	 * Initial setup of counts for views
+	 *
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _add_view_counts()
+	{
+		$this->_views['in_use']['count'] = $this->_admin_page->get_attendees($this->_per_page, true);
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_delete_contacts',
+			'espresso_registrations_delete_registration'
+		)) {
+			$this->_views['trash']['count'] = $this->_admin_page->get_attendees($this->_per_page, true, true);
+		}
+	}
+
+
+	/**
+	 * Get count of attendees.
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	protected function _get_attendees_count()
+	{
+		return EEM_Attendee::instance()->count();
+	}
+
+
+	/**
+	 * Checkbox column
+	 *
+	 * @param EE_Attendee $attendee Unable to typehint this method because overrides parent.
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function column_cb($attendee)
+	{
+		if (! $attendee instanceof EE_Attendee) {
+			return '';
+		}
+		return sprintf(
+			'<input type="checkbox" name="checkbox[%1$s]" value="%1$s" />',
+			$attendee->ID()
+		);
+	}
+
+
+	/**
+	 * ATT_ID column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function column_ATT_ID(EE_Attendee $attendee)
+	{
+		$content = $attendee->ID();
+		$attendee_name = $attendee instanceof EE_Attendee ? $attendee->full_name() : '';
+		$content .= '  <span class="show-on-mobile-view-only">' . $attendee_name . '</span>';
+		return $content;
+	}
+
+
+	/**
+	 * ATT_lname column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws EE_Error
+	 */
+	public function column_ATT_lname(EE_Attendee $attendee)
+	{
+		// edit attendee link
+		$edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
+			array(
+				'action' => 'edit_attendee',
+				'post'   => $attendee->ID(),
+			),
+			REG_ADMIN_URL
+		);
+		$name_link = EE_Registry::instance()->CAP->current_user_can(
+			'ee_edit_contacts',
+			'espresso_registrations_edit_attendee'
+		)
+			? '<a href="' . $edit_lnk_url . '" title="'
+			  . esc_attr__('Edit Contact', 'event_espresso') . '">'
+			  . $attendee->lname() . '</a>'
+			: $attendee->lname();
+		return $name_link;
+	}
+
+
+	/**
+	 * ATT_fname column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws EE_Error
+	 */
+	public function column_ATT_fname(EE_Attendee $attendee)
+	{
+		// Build row actions
+		$actions = array();
+		// edit attendee link
+		if (EE_Registry::instance()->CAP->current_user_can(
+			'ee_edit_contacts',
+			'espresso_registrations_edit_attendee'
+		)) {
+			$edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
+				array(
+					'action' => 'edit_attendee',
+					'post'   => $attendee->ID(),
+				),
+				REG_ADMIN_URL
+			);
+			$actions['edit'] = '<a href="' . $edit_lnk_url . '" title="'
+							   . esc_attr__('Edit Contact', 'event_espresso') . '">'
+							   . esc_html__('Edit', 'event_espresso') . '</a>';
+		}
+
+		if ($this->_view === 'in_use') {
+			// trash attendee link
+			if (EE_Registry::instance()->CAP->current_user_can(
+				'ee_delete_contacts',
+				'espresso_registrations_trash_attendees'
+			)) {
+				$trash_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
+					array(
+						'action' => 'trash_attendee',
+						'ATT_ID' => $attendee->ID(),
+					),
+					REG_ADMIN_URL
+				);
+				$actions['trash'] = '<a href="' . $trash_lnk_url . '" title="'
+									. esc_attr__('Move Contact to Trash', 'event_espresso')
+									. '">' . esc_html__('Trash', 'event_espresso') . '</a>';
+			}
+		} else {
+			if (EE_Registry::instance()->CAP->current_user_can(
+				'ee_delete_contacts',
+				'espresso_registrations_restore_attendees'
+			)) {
+				// restore attendee link
+				$restore_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
+					array(
+						'action' => 'restore_attendees',
+						'ATT_ID' => $attendee->ID(),
+					),
+					REG_ADMIN_URL
+				);
+				$actions['restore'] = '<a href="' . $restore_lnk_url . '" title="'
+									  . esc_attr__('Restore Contact', 'event_espresso') . '">'
+									  . esc_html__('Restore', 'event_espresso') . '</a>';
+			}
+		}
+
+		$edit_lnk_url = EE_Admin_Page::add_query_args_and_nonce(
+			array(
+				'action' => 'edit_attendee',
+				'post'   => $attendee->ID(),
+			),
+			REG_ADMIN_URL
+		);
+		$name_link = EE_Registry::instance()->CAP->current_user_can(
+			'ee_edit_contacts',
+			'espresso_registrations_edit_attendee'
+		)
+			? '<a href="' . $edit_lnk_url . '" title="'
+			  . esc_attr__('Edit Contact', 'event_espresso') . '">' . $attendee->fname() . '</a>'
+			: $attendee->fname();
+
+		// Return the name contents
+		return sprintf('%1$s %2$s', $name_link, $this->row_actions($actions));
+	}
+
+
+	/**
+	 * Email Column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function column_ATT_email(EE_Attendee $attendee)
+	{
+		return '<a href="mailto:' . $attendee->email() . '">' . $attendee->email() . '</a>';
+	}
+
+
+	/**
+	 * Column displaying count of registrations attached to Attendee.
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function column_Registration_Count(EE_Attendee $attendee)
+	{
+		$link = EEH_URL::add_query_args_and_nonce(
+			array(
+				'action' => 'default',
+				'ATT_ID' => $attendee->ID(),
+			),
+			REG_ADMIN_URL
+		);
+		return '<a href="' . $link . '">' . $attendee->getCustomSelect('Registration_Count') . '</a>';
+	}
+
+
+	/**
+	 * ATT_address column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return mixed
+	 * @throws EE_Error
+	 */
+	public function column_ATT_address(EE_Attendee $attendee)
+	{
+		return $attendee->address();
+	}
+
+
+	/**
+	 * ATT_city column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return mixed
+	 * @throws EE_Error
+	 */
+	public function column_ATT_city(EE_Attendee $attendee)
+	{
+		return $attendee->city();
+	}
+
+
+	/**
+	 * State Column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function column_STA_ID(EE_Attendee $attendee)
+	{
+		$states = EEM_State::instance()->get_all_states();
+		$state = isset($states[ $attendee->state_ID() ])
+			? $states[ $attendee->state_ID() ]->get('STA_name')
+			: $attendee->state_ID();
+		return ! is_numeric($state) ? $state : '';
+	}
+
+
+	/**
+	 * Country Column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function column_CNT_ISO(EE_Attendee $attendee)
+	{
+		$countries = EEM_Country::instance()->get_all_countries();
+		$country = isset($countries[ $attendee->country_ID() ])
+			? $countries[ $attendee->country_ID() ]->get('CNT_name')
+			: $attendee->country_ID();
+		return ! is_numeric($country) ? $country : '';
+	}
+
+
+	/**
+	 * Phone Number column
+	 *
+	 * @param EE_Attendee $attendee
+	 * @return mixed
+	 * @throws EE_Error
+	 */
+	public function column_ATT_phone(EE_Attendee $attendee)
+	{
+		return $attendee->phone();
+	}
 }

Spacing +21 added lines, -21 removed lines

@@ -127,7 +127,7 @@ 
      */
     public function column_cb($attendee)
     {
-        if (! $attendee instanceof EE_Attendee) {
+        if ( ! $attendee instanceof EE_Attendee) {
             return '';
         }
         return sprintf(
@@ -148,7 +148,7 @@ 
     {
         $content = $attendee->ID();
         $attendee_name = $attendee instanceof EE_Attendee ? $attendee->full_name() : '';
-        $content .= '  <span class="show-on-mobile-view-only">' . $attendee_name . '</span>';
+        $content .= '  <span class="show-on-mobile-view-only">'.$attendee_name.'</span>';
         return $content;
     }
 
@@ -177,9 +177,9 @@ 
             'ee_edit_contacts',
             'espresso_registrations_edit_attendee'
         )
-            ? '<a href="' . $edit_lnk_url . '" title="'
-              . esc_attr__('Edit Contact', 'event_espresso') . '">'
-              . $attendee->lname() . '</a>'
+            ? '<a href="'.$edit_lnk_url.'" title="'
+              . esc_attr__('Edit Contact', 'event_espresso').'">'
+              . $attendee->lname().'</a>'
             : $attendee->lname();
         return $name_link;
     }
@@ -211,9 +211,9 @@ 
                 ),
                 REG_ADMIN_URL
             );
-            $actions['edit'] = '<a href="' . $edit_lnk_url . '" title="'
-                               . esc_attr__('Edit Contact', 'event_espresso') . '">'
-                               . esc_html__('Edit', 'event_espresso') . '</a>';
+            $actions['edit'] = '<a href="'.$edit_lnk_url.'" title="'
+                               . esc_attr__('Edit Contact', 'event_espresso').'">'
+                               . esc_html__('Edit', 'event_espresso').'</a>';
         }
 
         if ($this->_view === 'in_use') {
@@ -229,9 +229,9 @@ 
                     ),
                     REG_ADMIN_URL
                 );
-                $actions['trash'] = '<a href="' . $trash_lnk_url . '" title="'
+                $actions['trash'] = '<a href="'.$trash_lnk_url.'" title="'
                                     . esc_attr__('Move Contact to Trash', 'event_espresso')
-                                    . '">' . esc_html__('Trash', 'event_espresso') . '</a>';
+                                    . '">'.esc_html__('Trash', 'event_espresso').'</a>';
             }
         } else {
             if (EE_Registry::instance()->CAP->current_user_can(
@@ -246,9 +246,9 @@ 
                     ),
                     REG_ADMIN_URL
                 );
-                $actions['restore'] = '<a href="' . $restore_lnk_url . '" title="'
-                                      . esc_attr__('Restore Contact', 'event_espresso') . '">'
-                                      . esc_html__('Restore', 'event_espresso') . '</a>';
+                $actions['restore'] = '<a href="'.$restore_lnk_url.'" title="'
+                                      . esc_attr__('Restore Contact', 'event_espresso').'">'
+                                      . esc_html__('Restore', 'event_espresso').'</a>';
             }
         }
 
@@ -263,8 +263,8 @@ 
             'ee_edit_contacts',
             'espresso_registrations_edit_attendee'
         )
-            ? '<a href="' . $edit_lnk_url . '" title="'
-              . esc_attr__('Edit Contact', 'event_espresso') . '">' . $attendee->fname() . '</a>'
+            ? '<a href="'.$edit_lnk_url.'" title="'
+              . esc_attr__('Edit Contact', 'event_espresso').'">'.$attendee->fname().'</a>'
             : $attendee->fname();
 
         // Return the name contents
@@ -281,7 +281,7 @@ 
      */
     public function column_ATT_email(EE_Attendee $attendee)
     {
-        return '<a href="mailto:' . $attendee->email() . '">' . $attendee->email() . '</a>';
+        return '<a href="mailto:'.$attendee->email().'">'.$attendee->email().'</a>';
     }
 
 
@@ -301,7 +301,7 @@ 
             ),
             REG_ADMIN_URL
         );
-        return '<a href="' . $link . '">' . $attendee->getCustomSelect('Registration_Count') . '</a>';
+        return '<a href="'.$link.'">'.$attendee->getCustomSelect('Registration_Count').'</a>';
     }
 
 
@@ -344,8 +344,8 @@ 
     public function column_STA_ID(EE_Attendee $attendee)
     {
         $states = EEM_State::instance()->get_all_states();
-        $state = isset($states[ $attendee->state_ID() ])
-            ? $states[ $attendee->state_ID() ]->get('STA_name')
+        $state = isset($states[$attendee->state_ID()])
+            ? $states[$attendee->state_ID()]->get('STA_name')
             : $attendee->state_ID();
         return ! is_numeric($state) ? $state : '';
     }
@@ -364,8 +364,8 @@ 
     public function column_CNT_ISO(EE_Attendee $attendee)
     {
         $countries = EEM_Country::instance()->get_all_countries();
-        $country = isset($countries[ $attendee->country_ID() ])
-            ? $countries[ $attendee->country_ID() ]->get('CNT_name')
+        $country = isset($countries[$attendee->country_ID()])
+            ? $countries[$attendee->country_ID()]->get('CNT_name')
             : $attendee->country_ID();
         return ! is_numeric($country) ? $country : '';
     }

admin_pages/registrations/help_tours/Event_Checkin_Help_Tour.class.php

Indentation +266 added lines, -266 removed lines

@@ -15,289 +15,289 @@
 class Event_Checkin_Help_Tour extends EE_Help_Tour
 {
 
-    protected function _set_tour_properties()
-    {
-        $this->_label = __('Event Check-in Tour', 'event_espresso');
-        if (isset($this->_req_data['event_id'])) {
-            $this->_slug = 'event-checkin-overview-joyride';
-        } else {
-            $this->_slug = 'all-event-checkin-overview-joyride';
-        }
-    }
+	protected function _set_tour_properties()
+	{
+		$this->_label = __('Event Check-in Tour', 'event_espresso');
+		if (isset($this->_req_data['event_id'])) {
+			$this->_slug = 'event-checkin-overview-joyride';
+		} else {
+			$this->_slug = 'all-event-checkin-overview-joyride';
+		}
+	}
 
 
-    protected function _set_tour_stops()
-    {
-        $this->_stops = array(
-            10  => array(
-                'content' => $this->_start(),
-            ),
-            20  => array(
-                'id'      => '_REG_count',
-                'content' => $this->_reg_count_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -20,
-                ),
-            ),
-            30  => array(
-                'id'      => 'ATT_name',
-                'content' => $this->_attendee_name_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -20,
-                ),
-            ),
-            40  => array(
-                'id'      => 'ATT_email',
-                'content' => $this->_attendee_email_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -20,
-                ),
-            ),
-            50  => array(
-                'id'      => '_REG_date',
-                'content' => $this->_reg_date_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -20,
-                ),
-            ),
-            60  => array(
-                'id'      => '_REG_code',
-                'content' => $this->_reg_code_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -20,
-                ),
-            ),
-            80  => array(
-                'id'      => '_REG_final_price',
-                'content' => $this->_reg_final_price_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -20,
-                ),
-            ),
-            90  => array(
-                'id'      => 'TXN_paid',
-                'content' => $this->_txn_paid_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -50,
-                ),
-            ),
-            100 => array(
-                'id'      => 'TXN_total',
-                'content' => $this->_txn_total_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -50,
-                ),
-            ),
-            110 => array(
-                'id'      => 'PRC_name',
-                'content' => $this->_prc_name_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -50,
-                ),
-            ),
-            115 => array(
-                'id'      => 'actions',
-                'content' => $this->_actions_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            120 => array(
-                'class'   => 'ee-list-table-legend-container',
-                'content' => $this->_legend_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => 15,
-                    'tipAdjustmentY' => -40,
-                ),
-            ),
-            125 => array(
-                'class'   => 'bulkactions',
-                'content' => $this->_bulkactions_stop(),
-                'options' => array(
-                    'tipLocation'    => 'bottom',
-                    'tipAdjustmentY' => -30,
-                    'tipAdjustmentX' => 15,
-                ),
-            ),
-            130 => array(
-                'id'      => 'event_id',
-                'content' => $this->_event_selector_stop(),
-                'options' => array(
-                    'tipLocation'    => 'right',
-                    'tipAdjustmentY' => -50,
-                    'tipAdjustmentX' => 25,
-                ),
-            ),
-            135 => array(
-                'id'      => 'DTT_ID',
-                'content' => $this->_dtt_selector_stop(),
-                'options' => array(
-                    'tipLocation'    => 'bottom',
-                    'tipAdjustmentY' => -30,
-                    'tipAdjustmentX' => 15,
-                ),
-            ),
-            140 => array(
-                'id'      => 'event-espresso_page_espresso_registrations-search-input',
-                'content' => $this->_search_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentY' => -50,
-                    'tipAdjustmentX' => -15,
-                ),
-            ),
-        );
-    }
+	protected function _set_tour_stops()
+	{
+		$this->_stops = array(
+			10  => array(
+				'content' => $this->_start(),
+			),
+			20  => array(
+				'id'      => '_REG_count',
+				'content' => $this->_reg_count_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -20,
+				),
+			),
+			30  => array(
+				'id'      => 'ATT_name',
+				'content' => $this->_attendee_name_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -20,
+				),
+			),
+			40  => array(
+				'id'      => 'ATT_email',
+				'content' => $this->_attendee_email_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -20,
+				),
+			),
+			50  => array(
+				'id'      => '_REG_date',
+				'content' => $this->_reg_date_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -20,
+				),
+			),
+			60  => array(
+				'id'      => '_REG_code',
+				'content' => $this->_reg_code_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -20,
+				),
+			),
+			80  => array(
+				'id'      => '_REG_final_price',
+				'content' => $this->_reg_final_price_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -20,
+				),
+			),
+			90  => array(
+				'id'      => 'TXN_paid',
+				'content' => $this->_txn_paid_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -50,
+				),
+			),
+			100 => array(
+				'id'      => 'TXN_total',
+				'content' => $this->_txn_total_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -50,
+				),
+			),
+			110 => array(
+				'id'      => 'PRC_name',
+				'content' => $this->_prc_name_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -50,
+				),
+			),
+			115 => array(
+				'id'      => 'actions',
+				'content' => $this->_actions_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			120 => array(
+				'class'   => 'ee-list-table-legend-container',
+				'content' => $this->_legend_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => 15,
+					'tipAdjustmentY' => -40,
+				),
+			),
+			125 => array(
+				'class'   => 'bulkactions',
+				'content' => $this->_bulkactions_stop(),
+				'options' => array(
+					'tipLocation'    => 'bottom',
+					'tipAdjustmentY' => -30,
+					'tipAdjustmentX' => 15,
+				),
+			),
+			130 => array(
+				'id'      => 'event_id',
+				'content' => $this->_event_selector_stop(),
+				'options' => array(
+					'tipLocation'    => 'right',
+					'tipAdjustmentY' => -50,
+					'tipAdjustmentX' => 25,
+				),
+			),
+			135 => array(
+				'id'      => 'DTT_ID',
+				'content' => $this->_dtt_selector_stop(),
+				'options' => array(
+					'tipLocation'    => 'bottom',
+					'tipAdjustmentY' => -30,
+					'tipAdjustmentX' => 15,
+				),
+			),
+			140 => array(
+				'id'      => 'event-espresso_page_espresso_registrations-search-input',
+				'content' => $this->_search_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentY' => -50,
+					'tipAdjustmentX' => -15,
+				),
+			),
+		);
+	}
 
 
-    protected function _start()
-    {
-        $content = '<h3>' . __('Event Check-in', 'event_espresso') . '</h3>';
-        if (isset($this->_req_data['event_id'])) {
-            $content .= '<p>'
-                        . __(
-                            'This tour of the Event Check-in page will go over different areas of the screen to help you understand what they are used for.<br /><br /> Note: You are currently viewing the check-in for a specific event so you can toggle the check-in status for attendees.',
-                            'event_espresso'
-                        ) . '</p>';
-        } else {
-            $content .= '<p>'
-                        . __(
-                            'This tour of the event check-in page will go over different areas of the screen to help you understand what they are used for. <br /><br /> Note: You must select an event from the dropdown menu before you can toggle the check-in status for an attendee.',
-                            'event_espresso'
-                        ) . '</p>';
-        }
-        return $content;
-    }
+	protected function _start()
+	{
+		$content = '<h3>' . __('Event Check-in', 'event_espresso') . '</h3>';
+		if (isset($this->_req_data['event_id'])) {
+			$content .= '<p>'
+						. __(
+							'This tour of the Event Check-in page will go over different areas of the screen to help you understand what they are used for.<br /><br /> Note: You are currently viewing the check-in for a specific event so you can toggle the check-in status for attendees.',
+							'event_espresso'
+						) . '</p>';
+		} else {
+			$content .= '<p>'
+						. __(
+							'This tour of the event check-in page will go over different areas of the screen to help you understand what they are used for. <br /><br /> Note: You must select an event from the dropdown menu before you can toggle the check-in status for an attendee.',
+							'event_espresso'
+						) . '</p>';
+		}
+		return $content;
+	}
 
-    protected function _reg_count_stop()
-    {
-        return '<p>' . __('View registration number.', 'event_espresso') . '</p>';
-    }
+	protected function _reg_count_stop()
+	{
+		return '<p>' . __('View registration number.', 'event_espresso') . '</p>';
+	}
 
-    protected function _attendee_name_stop()
-    {
-        return '<p>'
-               . __(
-                   'View name of registrant. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _attendee_name_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View name of registrant. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _attendee_email_stop()
-    {
-        return '<p>' . __('View email address for a registrant.', 'event_espresso') . '</p>';
-    }
+	protected function _attendee_email_stop()
+	{
+		return '<p>' . __('View email address for a registrant.', 'event_espresso') . '</p>';
+	}
 
-    protected function _reg_date_stop()
-    {
-        return '<p>'
-               . __(
-                   'View registration date. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _reg_date_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View registration date. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _reg_code_stop()
-    {
-        return '<p>'
-               . __(
-                   'View registration code. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _reg_code_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View registration code. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _reg_final_price_stop()
-    {
-        return '<p>' . __('View price for ticket.', 'event_espresso') . '</p>';
-    }
+	protected function _reg_final_price_stop()
+	{
+		return '<p>' . __('View price for ticket.', 'event_espresso') . '</p>';
+	}
 
-    protected function _txn_paid_stop()
-    {
-        return '<p>' . __('View if registrant has paid for ticket.', 'event_espresso') . '</p>';
-    }
+	protected function _txn_paid_stop()
+	{
+		return '<p>' . __('View if registrant has paid for ticket.', 'event_espresso') . '</p>';
+	}
 
-    protected function _txn_total_stop()
-    {
-        return '<p>' . __('View total amount paid.', 'event_espresso') . '</p>';
-    }
+	protected function _txn_total_stop()
+	{
+		return '<p>' . __('View total amount paid.', 'event_espresso') . '</p>';
+	}
 
-    protected function _prc_name_stop()
-    {
-        return '<p>' . __('View type of ticket.', 'event_espresso') . '</p>';
-    }
+	protected function _prc_name_stop()
+	{
+		return '<p>' . __('View type of ticket.', 'event_espresso') . '</p>';
+	}
 
-    protected function _actions_stop()
-    {
-        return '<p>'
-               . __(
-                   'Perform an action to a registration. See legend in bottom left corner.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _actions_stop()
+	{
+		return '<p>'
+			   . __(
+				   'Perform an action to a registration. See legend in bottom left corner.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _legend_stop()
-    {
-        return '<p>'
-               . __(
-                   'This is the legend that describes the different check-in statuses. Also shows available status for registrations.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _legend_stop()
+	{
+		return '<p>'
+			   . __(
+				   'This is the legend that describes the different check-in statuses. Also shows available status for registrations.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _bulkactions_stop()
-    {
-        return '<p>'
-               . __(
-                   'Perform a bulk action to multiple registrations (only available when viewing check-in for a specific event).',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _bulkactions_stop()
+	{
+		return '<p>'
+			   . __(
+				   'Perform a bulk action to multiple registrations (only available when viewing check-in for a specific event).',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _event_selector_stop()
-    {
-        return '<p>'
-               . __(
-                   'Select an event from this dropdown and click the filter button to see the check-in registration list for a specific event. You will then be able to toggle the check-in status for a registration.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _event_selector_stop()
+	{
+		return '<p>'
+			   . __(
+				   'Select an event from this dropdown and click the filter button to see the check-in registration list for a specific event. You will then be able to toggle the check-in status for a registration.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _dtt_selector_stop()
-    {
-        return '<p>'
-               . __(
-                   'This dropdown shows you the date and time that a displayed registration is attached to. You can switch to a different event by selecting another date and clicking on the filter button. You can also switch out of this view by clicking on the reset filters button.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _dtt_selector_stop()
+	{
+		return '<p>'
+			   . __(
+				   'This dropdown shows you the date and time that a displayed registration is attached to. You can switch to a different event by selecting another date and clicking on the filter button. You can also switch out of this view by clicking on the reset filters button.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 
-    protected function _search_stop()
-    {
-        return '<p>'
-               . __(
-                   'Search through registrations. The following sources will be searched: Event Name, Event Description, First Name, Last Name, Biography, Email Address, Address, Comments, Notes, Registration Final Price, Registration Code, Registration Group Size, Ticket Name, and Ticket Description.',
-                   'event_espresso'
-               ) . '</p>';
-    }
+	protected function _search_stop()
+	{
+		return '<p>'
+			   . __(
+				   'Search through registrations. The following sources will be searched: Event Name, Event Description, First Name, Last Name, Biography, Email Address, Address, Comments, Notes, Registration Final Price, Registration Code, Registration Group Size, Ticket Name, and Ticket Description.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
 }

Spacing +18 added lines, -18 removed lines

@@ -173,26 +173,26 @@ 
 
     protected function _start()
     {
-        $content = '<h3>' . __('Event Check-in', 'event_espresso') . '</h3>';
+        $content = '<h3>'.__('Event Check-in', 'event_espresso').'</h3>';
         if (isset($this->_req_data['event_id'])) {
             $content .= '<p>'
                         . __(
                             'This tour of the Event Check-in page will go over different areas of the screen to help you understand what they are used for.<br /><br /> Note: You are currently viewing the check-in for a specific event so you can toggle the check-in status for attendees.',
                             'event_espresso'
-                        ) . '</p>';
+                        ).'</p>';
         } else {
             $content .= '<p>'
                         . __(
                             'This tour of the event check-in page will go over different areas of the screen to help you understand what they are used for. <br /><br /> Note: You must select an event from the dropdown menu before you can toggle the check-in status for an attendee.',
                             'event_espresso'
-                        ) . '</p>';
+                        ).'</p>';
         }
         return $content;
     }
 
     protected function _reg_count_stop()
     {
-        return '<p>' . __('View registration number.', 'event_espresso') . '</p>';
+        return '<p>'.__('View registration number.', 'event_espresso').'</p>';
     }
 
     protected function _attendee_name_stop()
@@ -201,12 +201,12 @@ 
                . __(
                    'View name of registrant. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _attendee_email_stop()
     {
-        return '<p>' . __('View email address for a registrant.', 'event_espresso') . '</p>';
+        return '<p>'.__('View email address for a registrant.', 'event_espresso').'</p>';
     }
 
     protected function _reg_date_stop()
@@ -215,7 +215,7 @@ 
                . __(
                    'View registration date. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _reg_code_stop()
@@ -224,27 +224,27 @@ 
                . __(
                    'View registration code. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _reg_final_price_stop()
     {
-        return '<p>' . __('View price for ticket.', 'event_espresso') . '</p>';
+        return '<p>'.__('View price for ticket.', 'event_espresso').'</p>';
     }
 
     protected function _txn_paid_stop()
     {
-        return '<p>' . __('View if registrant has paid for ticket.', 'event_espresso') . '</p>';
+        return '<p>'.__('View if registrant has paid for ticket.', 'event_espresso').'</p>';
     }
 
     protected function _txn_total_stop()
     {
-        return '<p>' . __('View total amount paid.', 'event_espresso') . '</p>';
+        return '<p>'.__('View total amount paid.', 'event_espresso').'</p>';
     }
 
     protected function _prc_name_stop()
     {
-        return '<p>' . __('View type of ticket.', 'event_espresso') . '</p>';
+        return '<p>'.__('View type of ticket.', 'event_espresso').'</p>';
     }
 
     protected function _actions_stop()
@@ -253,7 +253,7 @@ 
                . __(
                    'Perform an action to a registration. See legend in bottom left corner.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _legend_stop()
@@ -262,7 +262,7 @@ 
                . __(
                    'This is the legend that describes the different check-in statuses. Also shows available status for registrations.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _bulkactions_stop()
@@ -271,7 +271,7 @@ 
                . __(
                    'Perform a bulk action to multiple registrations (only available when viewing check-in for a specific event).',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _event_selector_stop()
@@ -280,7 +280,7 @@ 
                . __(
                    'Select an event from this dropdown and click the filter button to see the check-in registration list for a specific event. You will then be able to toggle the check-in status for a registration.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _dtt_selector_stop()
@@ -289,7 +289,7 @@ 
                . __(
                    'This dropdown shows you the date and time that a displayed registration is attached to. You can switch to a different event by selecting another date and clicking on the filter button. You can also switch out of this view by clicking on the reset filters button.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _search_stop()
@@ -298,6 +298,6 @@ 
                . __(
                    'Search through registrations. The following sources will be searched: Event Name, Event Description, First Name, Last Name, Biography, Email Address, Address, Comments, Notes, Registration Final Price, Registration Code, Registration Group Size, Ticket Name, and Ticket Description.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 }

admin_pages/registrations/help_tours/Contact_List_Help_Tour.class.php

Indentation +223 added lines, -223 removed lines

@@ -15,227 +15,227 @@
 class Contact_List_Help_Tour extends EE_Help_Tour
 {
 
-    protected function _set_tour_properties()
-    {
-        $this->_label = __('Contact List Tour', 'event_espresso');
-        $this->_slug = 'contact-list-overview-joyride';
-    }
-
-
-    protected function _set_tour_stops()
-    {
-        $this->_stops = array(
-            10  => array(
-                'content' => $this->_start(),
-            ),
-            15  => array(
-                'id'      => 'ATT_ID',
-                'content' => $this->_attendee_id_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -20,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            20  => array(
-                'id'      => 'ATT_fname',
-                'content' => $this->_attendee_name_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => 5,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            30  => array(
-                'id'      => 'ATT_lname',
-                'content' => $this->_att_lname_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => 5,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            40  => array(
-                'id'      => 'ATT_email',
-                'content' => $this->_att_email_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => 10,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            50  => array(
-                'id'      => 'ATT_phone',
-                'content' => $this->_att_phone_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => -5,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            60  => array(
-                'id'      => 'ATT_address',
-                'content' => $this->_att_address_stop(),
-                'options' => array(
-                    'tipLocation'    => 'top',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -30,
-                ),
-            ),
-            70  => array(
-                'id'      => 'ATT_city',
-                'content' => $this->_att_city_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -50,
-                ),
-            ),
-            80  => array(
-                'id'      => 'STA_ID',
-                'content' => $this->_sta_id_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -50,
-                ),
-            ),
-            90  => array(
-                'id'      => 'CNT_ISO',
-                'content' => $this->_cnt_iso_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentX' => 0,
-                    'tipAdjustmentY' => -50,
-                ),
-            ),
-            100 => array(
-                'class'   => 'bulkactions',
-                'content' => $this->_bulkactions_stop(),
-                'options' => array(
-                    'tipLocation'    => 'bottom',
-                    'tipAdjustmentY' => -30,
-                    'tipAdjustmentX' => 15,
-                ),
-            ),
-            110 => array(
-                'id'      => 'event-espresso_page_espresso_registrations-search-input',
-                'content' => $this->_search_stop(),
-                'options' => array(
-                    'tipLocation'    => 'left',
-                    'tipAdjustmentY' => -50,
-                    'tipAdjustmentX' => -15,
-                ),
-            ),
-            120 => array(
-                'id'      => 'contact-list-csv-export',
-                'content' => $this->_contact_list_csv_export_stop(),
-                'options' => array(
-                    'tipLocation'    => 'right',
-                    'tipAdjustmentY' => -50,
-                    'tipAdjustmentX' => 25,
-                ),
-            ),
-        );
-    }
-
-
-    protected function _start()
-    {
-        $content = '<h3>' . __('Contact List', 'event_espresso') . '</h3>';
-        $content .= '<p>'
-                    . __(
-                        'This tour of the Contact List page will go over different areas of the screen to help you understand what they are used for.',
-                        'event_espresso'
-                    ) . '</p>';
-        return $content;
-    }
-
-    protected function _attendee_id_stop()
-    {
-        return '<p>'
-               . __(
-                   'View ID for registrants. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _attendee_name_stop()
-    {
-        return '<p>'
-               . __(
-                   'View first name for registrants. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _att_lname_stop()
-    {
-        return '<p>'
-               . __(
-                   'View last name for registrants. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _att_email_stop()
-    {
-        return '<p>'
-               . __(
-                   'View email address for registrants. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _att_phone_stop()
-    {
-        return '<p>' . __('View phone number for registrants.', 'event_espresso') . '</p>';
-    }
-
-    protected function _att_address_stop()
-    {
-        return '<p>' . __('View address for registrants.', 'event_espresso') . '</p>';
-    }
-
-    protected function _att_city_stop()
-    {
-        return '<p>' . __('View city for registrants.', 'event_espresso') . '</p>';
-    }
-
-    protected function _sta_id_stop()
-    {
-        return '<p>'
-               . __(
-                   'View state/province for registrants. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _cnt_iso_stop()
-    {
-        return '<p>'
-               . __(
-                   'View country for registrants. Can be sorted in ascending or descending order.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _bulkactions_stop()
-    {
-        return '<p>' . __('Perform a bulk action to multiple registrants.', 'event_espresso') . '</p>';
-    }
-
-    protected function _search_stop()
-    {
-        return '<p>'
-               . __(
-                   'Search through contacts. The following sources will be searched: Event Name, Event Description, First Name, Last Name, Biography, Email Address, Address, Comments, Notes, Registration Final Price, and Registration Code.',
-                   'event_espresso'
-               ) . '</p>';
-    }
-
-    protected function _contact_list_csv_export_stop()
-    {
-        return '<p>' . __('Export your contact list to a CSV file.', 'event_espresso') . '</p>';
-    }
+	protected function _set_tour_properties()
+	{
+		$this->_label = __('Contact List Tour', 'event_espresso');
+		$this->_slug = 'contact-list-overview-joyride';
+	}
+
+
+	protected function _set_tour_stops()
+	{
+		$this->_stops = array(
+			10  => array(
+				'content' => $this->_start(),
+			),
+			15  => array(
+				'id'      => 'ATT_ID',
+				'content' => $this->_attendee_id_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -20,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			20  => array(
+				'id'      => 'ATT_fname',
+				'content' => $this->_attendee_name_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => 5,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			30  => array(
+				'id'      => 'ATT_lname',
+				'content' => $this->_att_lname_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => 5,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			40  => array(
+				'id'      => 'ATT_email',
+				'content' => $this->_att_email_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => 10,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			50  => array(
+				'id'      => 'ATT_phone',
+				'content' => $this->_att_phone_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => -5,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			60  => array(
+				'id'      => 'ATT_address',
+				'content' => $this->_att_address_stop(),
+				'options' => array(
+					'tipLocation'    => 'top',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -30,
+				),
+			),
+			70  => array(
+				'id'      => 'ATT_city',
+				'content' => $this->_att_city_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -50,
+				),
+			),
+			80  => array(
+				'id'      => 'STA_ID',
+				'content' => $this->_sta_id_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -50,
+				),
+			),
+			90  => array(
+				'id'      => 'CNT_ISO',
+				'content' => $this->_cnt_iso_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentX' => 0,
+					'tipAdjustmentY' => -50,
+				),
+			),
+			100 => array(
+				'class'   => 'bulkactions',
+				'content' => $this->_bulkactions_stop(),
+				'options' => array(
+					'tipLocation'    => 'bottom',
+					'tipAdjustmentY' => -30,
+					'tipAdjustmentX' => 15,
+				),
+			),
+			110 => array(
+				'id'      => 'event-espresso_page_espresso_registrations-search-input',
+				'content' => $this->_search_stop(),
+				'options' => array(
+					'tipLocation'    => 'left',
+					'tipAdjustmentY' => -50,
+					'tipAdjustmentX' => -15,
+				),
+			),
+			120 => array(
+				'id'      => 'contact-list-csv-export',
+				'content' => $this->_contact_list_csv_export_stop(),
+				'options' => array(
+					'tipLocation'    => 'right',
+					'tipAdjustmentY' => -50,
+					'tipAdjustmentX' => 25,
+				),
+			),
+		);
+	}
+
+
+	protected function _start()
+	{
+		$content = '<h3>' . __('Contact List', 'event_espresso') . '</h3>';
+		$content .= '<p>'
+					. __(
+						'This tour of the Contact List page will go over different areas of the screen to help you understand what they are used for.',
+						'event_espresso'
+					) . '</p>';
+		return $content;
+	}
+
+	protected function _attendee_id_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View ID for registrants. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _attendee_name_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View first name for registrants. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _att_lname_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View last name for registrants. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _att_email_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View email address for registrants. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _att_phone_stop()
+	{
+		return '<p>' . __('View phone number for registrants.', 'event_espresso') . '</p>';
+	}
+
+	protected function _att_address_stop()
+	{
+		return '<p>' . __('View address for registrants.', 'event_espresso') . '</p>';
+	}
+
+	protected function _att_city_stop()
+	{
+		return '<p>' . __('View city for registrants.', 'event_espresso') . '</p>';
+	}
+
+	protected function _sta_id_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View state/province for registrants. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _cnt_iso_stop()
+	{
+		return '<p>'
+			   . __(
+				   'View country for registrants. Can be sorted in ascending or descending order.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _bulkactions_stop()
+	{
+		return '<p>' . __('Perform a bulk action to multiple registrants.', 'event_espresso') . '</p>';
+	}
+
+	protected function _search_stop()
+	{
+		return '<p>'
+			   . __(
+				   'Search through contacts. The following sources will be searched: Event Name, Event Description, First Name, Last Name, Biography, Email Address, Address, Comments, Notes, Registration Final Price, and Registration Code.',
+				   'event_espresso'
+			   ) . '</p>';
+	}
+
+	protected function _contact_list_csv_export_stop()
+	{
+		return '<p>' . __('Export your contact list to a CSV file.', 'event_espresso') . '</p>';
+	}
 }

Spacing +14 added lines, -14 removed lines

@@ -142,12 +142,12 @@ 
 
     protected function _start()
     {
-        $content = '<h3>' . __('Contact List', 'event_espresso') . '</h3>';
+        $content = '<h3>'.__('Contact List', 'event_espresso').'</h3>';
         $content .= '<p>'
                     . __(
                         'This tour of the Contact List page will go over different areas of the screen to help you understand what they are used for.',
                         'event_espresso'
-                    ) . '</p>';
+                    ).'</p>';
         return $content;
     }
 
@@ -157,7 +157,7 @@ 
                . __(
                    'View ID for registrants. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _attendee_name_stop()
@@ -166,7 +166,7 @@ 
                . __(
                    'View first name for registrants. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _att_lname_stop()
@@ -175,7 +175,7 @@ 
                . __(
                    'View last name for registrants. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _att_email_stop()
@@ -184,22 +184,22 @@ 
                . __(
                    'View email address for registrants. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _att_phone_stop()
     {
-        return '<p>' . __('View phone number for registrants.', 'event_espresso') . '</p>';
+        return '<p>'.__('View phone number for registrants.', 'event_espresso').'</p>';
     }
 
     protected function _att_address_stop()
     {
-        return '<p>' . __('View address for registrants.', 'event_espresso') . '</p>';
+        return '<p>'.__('View address for registrants.', 'event_espresso').'</p>';
     }
 
     protected function _att_city_stop()
     {
-        return '<p>' . __('View city for registrants.', 'event_espresso') . '</p>';
+        return '<p>'.__('View city for registrants.', 'event_espresso').'</p>';
     }
 
     protected function _sta_id_stop()
@@ -208,7 +208,7 @@ 
                . __(
                    'View state/province for registrants. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _cnt_iso_stop()
@@ -217,12 +217,12 @@ 
                . __(
                    'View country for registrants. Can be sorted in ascending or descending order.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _bulkactions_stop()
     {
-        return '<p>' . __('Perform a bulk action to multiple registrants.', 'event_espresso') . '</p>';
+        return '<p>'.__('Perform a bulk action to multiple registrants.', 'event_espresso').'</p>';
     }
 
     protected function _search_stop()
@@ -231,11 +231,11 @@ 
                . __(
                    'Search through contacts. The following sources will be searched: Event Name, Event Description, First Name, Last Name, Biography, Email Address, Address, Comments, Notes, Registration Final Price, and Registration Code.',
                    'event_espresso'
-               ) . '</p>';
+               ).'</p>';
     }
 
     protected function _contact_list_csv_export_stop()
     {
-        return '<p>' . __('Export your contact list to a CSV file.', 'event_espresso') . '</p>';
+        return '<p>'.__('Export your contact list to a CSV file.', 'event_espresso').'</p>';
     }
 }