Grunion_Contact_Form_Plugin::process_form_submission PHP Метод

    function process_form_submission()
    {
        // Add a filter to replace tokens in the subject field with sanitized field values
        add_filter('contact_form_subject', array($this, 'replace_tokens_with_input'), 10, 2);
        $id = stripslashes($_POST['contact-form-id']);
        if (is_user_logged_in()) {
            check_admin_referer("contact-form_{$id}");
        }
        $is_widget = 0 === strpos($id, 'widget-');
        $form = false;
        if ($is_widget) {
            // It's a form embedded in a text widget
            $this->current_widget_id = substr($id, 7);
            // remove "widget-"
            $widget_type = implode('-', array_slice(explode('-', $this->current_widget_id), 0, -1));
            // Remove trailing -#
            // Is the widget active?
            $sidebar = is_active_widget(false, $this->current_widget_id, $widget_type);
            // This is lame - no core API for getting a widget by ID
            $widget = isset($GLOBALS['wp_registered_widgets'][$this->current_widget_id]) ? $GLOBALS['wp_registered_widgets'][$this->current_widget_id] : false;
            if ($sidebar && $widget && isset($widget['callback'])) {
                // This is lamer - no API for outputting a given widget by ID
                ob_start();
                // Process the widget to populate Grunion_Contact_Form::$last
                call_user_func($widget['callback'], array(), $widget['params'][0]);
                ob_end_clean();
            }
        } else {
            // It's a form embedded in a post
            $post = get_post($id);
            // Process the content to populate Grunion_Contact_Form::$last
            /** This filter is already documented in core. wp-includes/post-template.php */
            apply_filters('the_content', $post->post_content);
        }
        $form = Grunion_Contact_Form::$last;
        // No form may mean user is using do_shortcode, grab the form using the stored post meta
        if (!$form) {
            // Get shortcode from post meta
            $shortcode = get_post_meta($_POST['contact-form-id'], '_g_feedback_shortcode', true);
            // Format it
            if ($shortcode != '') {
                // Get attributes from post meta.
                $parameters = '';
                $attributes = get_post_meta($_POST['contact-form-id'], '_g_feedback_shortcode_atts', true);
                if (!empty($attributes) && is_array($attributes)) {
                    foreach (array_filter($attributes) as $param => $value) {
                        $parameters .= " {$param}=\"{$value}\"";
                    }
                }
                $shortcode = '[contact-form' . $parameters . ']' . $shortcode . '[/contact-form]';
                do_shortcode($shortcode);
                // Recreate form
                $form = Grunion_Contact_Form::$last;
            }
            if (!$form) {
                return false;
            }
        }
        if (is_wp_error($form->errors) && $form->errors->get_error_codes()) {
            return $form->errors;
        }
        // Process the form
        return $form->process_submission();
    }