eventespresso / event-espresso-core

            return $critical_page;

        }

        // get newly created post's details

        if (! $critical_page['post'] = get_post($post_id)) {

            $msg = sprintf(

                __('The Event Espresso critical page entitled "%s" could not be retrieved.', 'event_espresso'),

                $critical_page['name']

            );

            EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);

        }

        return $critical_page;

    }

    public static function verify_and_retrieve_class_name_for_data_handler_reference($data_handler_reference)

    {

        $class_name = 'EE_Messages_' . $data_handler_reference . '_incoming_data';

        if (! class_exists($class_name)) {

            EE_Error::add_error(

                sprintf(

                    __(

                        'The included data handler reference (%s) does not match any valid, accessible, "EE_Messages_incoming_data" classes.  Looking for %s.',

                        'event_espresso'

                    ),

                    $data_handler_reference,

                    $class_name

                ),

                __FILE__,

                __FUNCTION__,

                __LINE__

            );

            $class_name = ''; // clear out class_name so caller knows this isn't valid.

        }

        return $class_name;

    }

}

        // load the widget class file

        require_once($widget_path . DS . $widget_class . $widget_ext);

        // verify that class exists

        if (! class_exists($widget_class)) {

            $msg = sprintf(__('The requested %s widget class does not exist.', 'event_espresso'), $widget_class);

            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);

            return;

        }

        register_widget($widget_class);

        // add to array of registered widgets

        EE_Registry::instance()->widgets->{$widget_class} = $widget_path . DS . $widget_class . $widget_ext;

                                        $input_value = $primary_registrant[ $form_input ];

                                    }

                                    // now attempt to save the input data

                                    if (! $this->_save_registration_form_input(

                                        $registration,

                                        $form_input,

                                        $input_value

                                    )

                                    ) {

                                        EE_Error::add_error(

                                            sprintf(

                                                esc_html_x(

                                                    'Unable to save registration form data for the form input: "%1$s" with the submitted value: "%2$s"',

                                                    'Unable to save registration form data for the form input: "form input name" with the submitted value: "form input value"',

                                                    'event_espresso'

                                                ),

                                                $form_input,

                                                $input_value

                                            ),

                                            __FILE__,

                                            __FUNCTION__,

                                            __LINE__

                                        );

                                        return false;

                                    }

                                }

                            }

                        }  // end of foreach ( $valid_data[ $reg_url_link ] as $form_section => $form_inputs )

                                // default setup for it.

                                // @link https://events.codebasehq.com/projects/event-espresso/tickets/9465

                                $updated = $MTP->insert($message_template_fields);

                                if (! $updated || is_wp_error($updated)) {

                                    EE_Error::add_error(

                                        sprintf(

                                            esc_html__('%s field could not be updated.', 'event_espresso'),

                                            $template_field

                                        ),

                                        __FILE__,

                                        __FUNCTION__,

                                        __LINE__

                                    );

                                    $success = 0;

                                } else {

                                    $success = 1;

                                }

                            }

                        }

                        $action_desc = 'updated';