function mycred_exclude_post_type_bbPress($excludes)
 {
     $excludes[] = bbp_get_forum_post_type();
     $excludes[] = bbp_get_topic_post_type();
     $excludes[] = bbp_get_reply_post_type();
     return $excludes;
 }

/**
 * Move our custom separator above our custom post types
 *
 * @since bbPress (r2957)
 *
 * @param array $menu_order Menu Order
 * @uses bbp_get_forum_post_type() To get the forum post type
 * @return array Modified menu order
 */
function bbp_admin_menu_order($menu_order)
{
    // Bail if user cannot see any top level bbPress menus
    if (empty($menu_order) || false === bbpress()->admin->show_separator) {
        return $menu_order;
    }
    // Initialize our custom order array
    $bbp_menu_order = array();
    // Menu values
    $second_sep = 'separator2';
    $custom_menus = array('separator-bbpress', 'edit.php?post_type=' . bbp_get_forum_post_type(), 'edit.php?post_type=' . bbp_get_topic_post_type(), 'edit.php?post_type=' . bbp_get_reply_post_type());
    // Loop through menu order and do some rearranging
    foreach ($menu_order as $item) {
        // Position bbPress menus above appearance
        if ($second_sep == $item) {
            // Add our custom menus
            foreach ($custom_menus as $custom_menu) {
                if (array_search($custom_menu, $menu_order)) {
                    $bbp_menu_order[] = $custom_menu;
                }
            }
            // Add the appearance separator
            $bbp_menu_order[] = $second_sep;
            // Skip our menu items
        } elseif (!in_array($item, $custom_menus)) {
            $bbp_menu_order[] = $item;
        }
    }
    // Return our custom order
    return $bbp_menu_order;
}

function om_add_bbpress_meta_box()
{
    global $om_bbpress_meta_box;
    if (function_exists('bbp_get_forum_post_type')) {
        ommb_add_meta_boxes($om_bbpress_meta_box, bbp_get_forum_post_type());
    }
}

 public function get_all_forums()
 {
     $bbp_f = bbp_parse_args($args, array('post_type' => bbp_get_forum_post_type(), 'post_parent' => 'any', 'post_status' => bbp_get_public_status_id(), 'posts_per_page' => get_option('_bbp_forums_per_page', 50), 'ignore_sticky_posts' => true, 'orderby' => 'menu_order title', 'order' => 'ASC'), 'has_forums');
     $bbp = bbpress();
     $bbp->forum_query = new WP_Query($bbp_f);
     $data = array();
     foreach ($bbp->forum_query->posts as $post) {
         $type = 'forum';
         $is_parent = false;
         $is_category = bbp_forum_get_subforums($post->ID);
         if ($is_category) {
             $type = 'category';
             $parent = true;
         }
         $settings = $this->wlm->GetOption('bbpsettings');
         if ($settings && count($settings) > 0) {
             foreach ($settings as $setting) {
                 if ($setting["id"] == $post->ID) {
                     $data[$post->ID] = array("id" => $post->ID, "name" => $post->post_title, "level" => $setting["sku"], "protection" => $setting["protection"], "type" => $type, "parent" => $parent, "date" => "");
                 }
             }
             if (!isset($data[$post->ID])) {
                 $data[$post->ID] = array("id" => $post->ID, "name" => $post->post_title, "level" => "", "protection" => "", "type" => $type, "parent" => $parent, "date" => "");
             }
         } else {
             $data[$post->ID] = array("id" => $post->ID, "name" => $post->post_title, "level" => "", "protection" => "", "type" => $type, "parent" => $parent, "date" => "");
         }
     }
     echo json_encode($data);
     die;
 }

 public static function parse_query($posts_query)
 {
     // Bail if $posts_query is not the main loop
     if (!$posts_query->is_main_query()) {
         return;
     }
     // Bail if filters are suppressed on this query
     if (true === $posts_query->get('suppress_filters')) {
         return;
     }
     // Bail if in admin
     if (is_admin()) {
         return;
     }
     // Get query variables
     $is_write = $posts_query->get(bbp_get_write_rewrite_id());
     // Write?
     if (!empty($is_write)) {
         // Get the post type from the main query loop
         $post_type = $posts_query->get('post_type');
         // Check which post_type we are editing, if any
         if (!empty($post_type)) {
             switch ($post_type) {
                 // We are editing a forum
                 case bbp_get_forum_post_type():
                     $posts_query->bbp_is_topic_write = true;
                     $posts_query->bbp_is_write = true;
                     break;
             }
         }
     }
 }

 function bbpress_forumslist_settings_field($settings, $value)
 {
     $dependency = vc_generate_dependencies_attributes($settings);
     $param_name = isset($settings['param_name']) ? $settings['param_name'] : '';
     $type = isset($settings['type']) ? $settings['type'] : '';
     $allforums = isset($settings['allforums']) ? $settings['allforums'] : 'false';
     $value_arr = $value;
     $args = array('post_type' => bbp_get_forum_post_type(), 'orderby' => 'title', 'order' => 'ASC');
     $forums = new WP_Query($args);
     $output = '';
     $output .= '<select name="' . $settings['param_name'] . '" class="wpb_vc_param_value wpb-input wpb-select ' . $settings['param_name'] . ' ' . $settings['type'] . '">';
     if ($allforums == "true") {
         $output .= "<option value=''>" . __("All Forums", "ts_visual_composer_extend") . "</option>";
     }
     while ($forums->have_posts()) {
         $forums->the_post();
         if ($value != '' && get_the_ID() == $value) {
             $selected = ' selected="selected"';
         } else {
             $selected = "";
         }
         $output .= '<option class="' . get_the_ID() . '" data-id="' . get_the_ID() . '" data-value="' . get_the_title() . '" value="' . get_the_ID() . '"' . $selected . '>' . get_the_title() . '</option>';
     }
     wp_reset_query();
     $output .= '</select>';
     return $output;
 }

    /**
     * Displays the output, the forum list
     *
     * @since bbPress (r2653)
     *
     * @param mixed $args Arguments
     * @param array $instance Instance
     * @uses apply_filters() Calls 'bbp_forum_widget_title' with the title
     * @uses get_option() To get the forums per page option
     * @uses current_user_can() To check if the current user can read
     *                           private() To resety name
     * @uses bbp_has_forums() The main forum loop
     * @uses bbp_forums() To check whether there are more forums available
     *                     in the loop
     * @uses bbp_the_forum() Loads up the current forum in the loop
     * @uses bbp_forum_permalink() To display the forum permalink
     * @uses bbp_forum_title() To display the forum title
     */
    public function widget($args, $instance)
    {
        extract($args);
        $title = apply_filters('bbp_forum_widget_title', $instance['title']);
        $parent_forum = !empty($instance['parent_forum']) ? $instance['parent_forum'] : '0';
        // Note: private and hidden forums will be excluded via the
        // bbp_pre_get_posts_exclude_forums filter and function.
        $widget_query = new WP_Query(array('post_parent' => $parent_forum, 'post_type' => bbp_get_forum_post_type(), 'posts_per_page' => get_option('_bbp_forums_per_page', 50), 'orderby' => 'menu_order', 'order' => 'ASC'));
        if ($widget_query->have_posts()) {
            echo $before_widget;
            echo $before_title . $title . $after_title;
            $current_forum_id = bbp_get_forum_id();
            ?>

			<ul>

				<?php 
            while ($widget_query->have_posts()) {
                $widget_query->the_post();
                ?>

					<?php 
                $current = $widget_query->post->ID == $current_forum_id ? 'current' : '';
                ?>

					<li>
						<a class="bbp-forum-title <?php 
                echo $current;
                ?>
" href="<?php 
                bbp_forum_permalink($widget_query->post->ID);
                ?>
" title="<?php 
                bbp_forum_title($widget_query->post->ID);
                ?>
">
							<?php 
                bbp_forum_title($widget_query->post->ID);
                ?>
						</a>
						<span class="topic-count"><?php 
                bbp_forum_topic_count($widget_query->post->ID);
                ?>
</span>
					</li>

				<?php 
            }
            ?>

			</ul>

			<?php 
            echo $after_widget;
            // Reset the $post global
            wp_reset_postdata();
        }
    }

 /**
  * Register the post type
  *
  * @since 1.0
  *
  * @return void
  */
 public function post_type()
 {
     if (!class_exists('bbPress')) {
         return;
     }
     $labels = array('name' => _x('Canned Replies', 'post type general name', 'bbp-canned-replies'), 'singular_name' => _x('Canned Reply', 'post type singular name', 'bbp-canned-replies'), 'add_new' => __('Add New', 'bbp-canned-replies'), 'add_new_item' => __('Add New Canned Reply', 'bbp-canned-replies'), 'edit_item' => __('Edit Canned Reply', 'bbp-canned-replies'), 'new_item' => __('New Canned Reply', 'bbp-canned-replies'), 'all_items' => __('Canned Replies', 'bbp-canned-replies'), 'view_item' => __('View Canned Reply', 'bbp-canned-replies'), 'search_items' => __('Search Canned Replies', 'bbp-canned-replies'), 'not_found' => __('No Canned Replies found', 'bbp-canned-replies'), 'not_found_in_trash' => __('No Canned Replies found in Trash', 'bbp-canned-replies'), 'parent_item_colon' => '', 'menu_name' => __('Canned Replies', 'bbp-canned-replies'));
     $args = array('labels' => $labels, 'public' => false, 'show_ui' => true, 'show_in_menu' => 'edit.php?post_type=' . bbp_get_forum_post_type(), 'query_var' => false, 'rewrite' => false, 'capabilities' => bbp_get_forum_caps(), 'capability_type' => array('forum', 'forums'), 'supports' => array('editor', 'title'), 'can_export' => true);
     register_post_type('bbp_canned_reply', $args);
 }

    /**
     * Displays the output, the forum list
     *
     * @since bbPress (r2653)
     *
     * @param mixed $args Arguments
     * @param array $instance Instance
     * @uses apply_filters() Calls 'bbp_forum_widget_title' with the title
     * @uses get_option() To get the forums per page option
     * @uses current_user_can() To check if the current user can read
     *                           private() To resety name
     * @uses bbp_has_forums() The main forum loop
     * @uses bbp_forums() To check whether there are more forums available
     *                     in the loop
     * @uses bbp_the_forum() Loads up the current forum in the loop
     * @uses bbp_forum_permalink() To display the forum permalink
     * @uses bbp_forum_title() To display the forum title
     */
    public function widget($args, $instance)
    {
        // Get widget settings
        $settings = $this->parse_settings($instance);
        // Typical WordPress filter
        $settings['title'] = apply_filters('widget_title', $settings['title'], $instance, $this->id_base);
        // bbPress filter
        $settings['title'] = apply_filters('pg_widget_title', $settings['title'], $instance, $this->id_base);
        // Note: private and hidden forums will be excluded via the
        // bbp_pre_get_posts_exclude_forums filter and function.
        $query_data = array('post_type' => bbp_get_forum_post_type(), 'post_parent' => $settings['parent_forum'], 'post_status' => bbp_get_public_status_id(), 'posts_per_page' => get_option('_bbp_forums_per_page', 50), 'orderby' => 'menu_order', 'order' => 'ASC');
        //PRIVATE GROUPS Get an array of IDs which the current user has permissions to view
        $allowed_posts = private_groups_get_permitted_post_ids(new WP_Query($query_data));
        // The default forum query with allowed forum ids array added
        $query_data['post__in'] = $allowed_posts;
        $widget_query = new WP_Query($query_data);
        // Bail if no posts
        if (!$widget_query->have_posts()) {
            return;
        }
        echo $args['before_widget'];
        if (!empty($settings['title'])) {
            echo $args['before_title'] . $settings['title'] . $args['after_title'];
        }
        ?>

        <ul>

            <?php 
        while ($widget_query->have_posts()) {
            $widget_query->the_post();
            ?>

                <li><a class="bbp-forum-title" href="<?php 
            bbp_forum_permalink($widget_query->post->ID);
            ?>
" title="<?php 
            bbp_forum_title($widget_query->post->ID);
            ?>
"><?php 
            bbp_forum_title($widget_query->post->ID);
            ?>
</a></li>

            <?php 
        }
        ?>

        </ul>

        <?php 
        echo $args['after_widget'];
        // Reset the $post global
        wp_reset_postdata();
    }

 function register_bb_custom_sidebar_mb()
 {
     if (!function_exists('bbp_get_topic_post_type') || !function_exists('bbp_get_forum_post_type') || !function_exists('bbp_get_reply_post_type')) {
         return;
     }
     $options = array('id' => 'circleflip-custom-sidebar-page', 'title' => 'Custom Sidebar', 'callback' => 'render_page_custom_sidebar_mb', 'context' => 'normal', 'priority' => 'high', 'callback_args' => NULL);
     extract($options);
     add_meta_box($id, $title, $callback, bbp_get_topic_post_type(), $context, $priority, $callback_args);
     add_meta_box($id, $title, $callback, bbp_get_forum_post_type(), $context, $priority, $callback_args);
     add_meta_box($id, $title, $callback, bbp_get_reply_post_type(), $context, $priority, $callback_args);
 }

 /**
  * Setup the Genesis actions.
  */
 public function setup_actions()
 {
     // Register forum sidebar if needed
     $this->register_genesis_forum_sidebar();
     // Remove Genesis profile fields from front end
     $this->remove_profile_fields();
     // We hook into 'genesis_before' because it is the most reliable hook
     // available to bbPress in the Genesis page load process.
     add_action('genesis_before', array($this, 'genesis_post_actions'));
     add_action('genesis_before', array($this, 'check_genesis_forum_sidebar'));
     // Configure which Genesis layout to apply
     add_filter('genesis_pre_get_option_site_layout', array($this, 'genesis_layout'));
     // Add Layout and SEO options to Forums
     add_post_type_support(bbp_get_forum_post_type(), array('genesis-layouts', 'genesis-seo', 'genesis-scripts', 'genesis-ss'));
 }

 /**
  * bbPress post types.
  *
  * @since 150821 Improving bbPress support.
  *
  * @return array All bbPress post types.
  */
 public function bbPressPostTypes()
 {
     if (!$this->isBbPressActive()) {
         return [];
     }
     if (!is_null($types =& $this->cacheKey('bbPressPostTypes'))) {
         return $types;
         // Already did this.
     }
     $types = [];
     // Initialize.
     $types[] = bbp_get_forum_post_type();
     $types[] = bbp_get_topic_post_type();
     $types[] = bbp_get_reply_post_type();
     return $types;
 }

 public static function SavePost($post_id, $post, $update)
 {
     if (wp_is_post_revision($post_id) || $post->post_status != 'publish' || $post->post_type != 'namaste_course') {
         return;
     }
     $meta = get_post_meta($post_id, 'buddypress_id', true);
     if (empty($meta)) {
         $group_id = groups_create_group(array('creator_id' => get_current_user_id(), 'name' => $post->post_title, 'description' => 'Обсуждение курса ' . $post->post_title, 'enable_forum' => 1));
         update_post_meta($post_id, 'buddypress_id', $group_id);
         groups_edit_group_settings($group_id, 1, 'private', 'mods');
         $forum_id = bbp_insert_forum($forum_data = array('post_status' => bbp_get_private_status_id(), 'post_type' => bbp_get_forum_post_type(), 'post_author' => bbp_get_current_user_id(), 'post_content' => 'Обсуждение курса ' . $post->post_title, 'post_title' => $post->post_title), $forum_meta = array());
         bbp_update_group_forum_ids($group_id, (array) $forum_id);
         bbp_update_forum_group_ids($forum_id, (array) $group_id);
     }
     bbp_add_user_forum_subscription(bbp_get_current_user_id(), $forum_id);
     update_post_meta($forum_id, '_forum_course_id', $post_id);
 }

 /**
  * @covers ::bbp_forum_post_type
  * @covers ::bbp_get_forum_post_type
  */
 public function test_bbp_get_forum_post_type()
 {
     $f = $this->factory->forum->create();
     $fobj = get_post_type_object('forum');
     // WordPress 4.6 introduced `WP_Post_Type` class
     if (bbp_get_major_wp_version() < 4.6) {
         $this->assertInstanceOf('stdClass', $fobj);
     } else {
         $this->assertInstanceOf('WP_Post_Type', $fobj);
     }
     $this->assertEquals('forum', $fobj->name);
     // Test some defaults
     $this->assertTrue(is_post_type_hierarchical('forum'));
     $forum_type = bbp_forum_post_type($f);
     $this->expectOutputString('forum', $forum_type);
     $forum_type = bbp_get_forum_post_type($f);
     $this->assertSame('forum', $forum_type);
 }

function bbp_get_topic_write_url($forum_id = 0)
{
    global $wp_rewrite;
    $bbp = bbpress();
    $forum = bbp_get_forum(bbp_get_forum_id($forum_id));
    if (empty($forum)) {
        return;
    }
    // Remove view=all link from edit
    $forum_link = bbp_get_forum_permalink($forum_id);
    // Pretty permalinks
    if ($wp_rewrite->using_permalinks()) {
        $url = trailingslashit($forum_link) . $bbp->write_id;
        $url = trailingslashit($url);
        // Unpretty permalinks
    } else {
        $url = add_query_arg(array(bbp_get_forum_post_type() => $forum->post_name, $bbp->write_id => '1'), $forum_link);
    }
    return apply_filters('bbp_get_topic_write_url', $url, $forum_id);
}

 static function nav_menu_css_class($classes, $item, $args, $depth)
 {
     if ($item->object == bbp_get_forum_post_type() && is_bbpress()) {
         if (bbp_is_topic_edit() || bbp_is_single_topic()) {
             $forum_id = bbp_get_topic_forum_id();
             if ($forum_id == $item->object_id) {
                 $classes[] = 'current-menu-parent';
                 $classes[] = 'current-' . bbp_get_topic_post_type() . '-parent';
             } elseif ($ancestors = self::forum_ancestors($forum_id, array())) {
                 if (in_array($item->object_id, $ancestors)) {
                     $classes[] = 'current-menu-ancestor';
                     $classes[] = 'current-' . bbp_get_topic_post_type() . '-ancestor';
                 }
             }
         } elseif (bbp_is_reply_edit() || bbp_is_single_reply()) {
             $forum_id = bbp_get_reply_forum_id();
         }
     }
     return $classes;
 }

function private_groups_get_forum_id_from_post_id($post_id, $post_type)
{
    $forum_id = 0;
    // Check post type
    switch ($post_type) {
        // Forum
        case bbp_get_forum_post_type():
            $forum_id = bbp_get_forum_id($post_id);
            break;
            // Topic
        // Topic
        case bbp_get_topic_post_type():
            $forum_id = bbp_get_topic_forum_id($post_id);
            break;
            // Reply
        // Reply
        case bbp_get_reply_post_type():
            $forum_id = bbp_get_reply_forum_id($post_id);
            break;
    }
    return $forum_id;
}

 static function ajax_query_attachments_args($query)
 {
     $forum_id = 0;
     $post_id = isset($_POST['post_id']) ? (int) $_POST['post_id'] : 0;
     if ($post_id) {
         $post_type = get_post_type($post_id);
         if ($post_type == bbp_get_topic_post_type()) {
             $forum_id = (int) bbp_get_topic_forum_id($post_id);
         } elseif ($post_type == bbp_get_reply_post_type()) {
             $forum_id = (int) bbp_get_reply_forum_id($post_id);
         } elseif ($post_type == bbp_get_forum_post_type()) {
             $forum_id = $post_id;
         }
     }
     if ($forum_id) {
         // TODO: post_id 값이 전달되지 않을 때, 포럼을 찾는 방법을 알아봐야함.
         add_filter('bbp_get_forum_id', create_function('$a', 'return ' . $forum_id . ';'));
         if (!current_user_can('edit_others_topics')) {
             $query['author'] = get_current_user_id();
         }
     }
     return $query;
 }

/**
 * This function filters the list of forums based on the users rank as set by the Mebmers plugin
 */
function tehnik_bpp_filter_forums_by_permissions($args = '')
{
    $bbp = bbpress();
    // Setup possible post__not_in array
    $post_stati[] = bbp_get_public_status_id();
    // Check if user can read private forums
    if (current_user_can('read_private_forums')) {
        $post_stati[] = bbp_get_private_status_id();
    }
    // Check if user can read hidden forums
    if (current_user_can('read_hidden_forums')) {
        $post_stati[] = bbp_get_hidden_status_id();
    }
    // The default forum query for most circumstances
    $meta_query = array('post_type' => bbp_get_forum_post_type(), 'post_parent' => bbp_is_forum_archive() ? 0 : bbp_get_forum_id(), 'post_status' => implode(',', $post_stati), 'posts_per_page' => get_option('_bbp_forums_per_page', 50), 'orderby' => 'menu_order', 'order' => 'ASC');
    //Get an array of IDs which the current user has permissions to view
    $allowed_forums = tehnik_bpp_get_permitted_post_ids(new WP_Query($meta_query));
    // The default forum query with allowed forum ids array added
    $meta_query['post__in'] = $allowed_forums;
    $bbp_f = bbp_parse_args($args, $meta_query, 'has_forums');
    // Run the query
    $bbp->forum_query = new WP_Query($bbp_f);
    return apply_filters('bpp_filter_forums_by_permissions', $bbp->forum_query->have_posts(), $bbp->forum_query);
}

/**
 * Output a select box allowing to pick which forum/topic a new
 * topic/reply belongs in.
 *
 * @since bbPress (r2746)
 *
 * @param mixed $args The function supports these args:
 *  - post_type: Post type, defaults to bbp_get_forum_post_type() (bbp_forum)
 *  - selected: Selected ID, to not have any value as selected, pass
 *               anything smaller than 0 (due to the nature of select
 *               box, the first value would of course be selected -
 *               though you can have that as none (pass 'show_none' arg))
 *  - orderby: Defaults to 'menu_order title'
 *  - post_parent: Post parent. Defaults to 0
 *  - post_status: Which all post_statuses to find in? Can be an array
 *                  or CSV of publish, category, closed, private, spam,
 *                  trash (based on post type) - if not set, these are
 *                  automatically determined based on the post_type
 *  - posts_per_page: Retrieve all forums/topics. Defaults to -1 to get
 *                     all posts
 *  - walker: Which walker to use? Defaults to
 *             {@link BBP_Walker_Dropdown}
 *  - select_id: ID of the select box. Defaults to 'bbp_forum_id'
 *  - tab: Tabindex value. False or integer
 *  - options_only: Show only <options>? No <select>?
 *  - show_none: False or something like __( '(No Forum)', 'bbpress' ),
 *                will have value=""
 *  - none_found: False or something like
 *                 __( 'No forums to post to!', 'bbpress' )
 *  - disable_categories: Disable forum categories and closed forums?
 *                         Defaults to true. Only for forums and when
 *                         the category option is displayed.
 * @uses BBP_Walker_Dropdown() As the default walker to generate the
 *                              dropdown
 * @uses current_user_can() To check if the current user can read
 *                           private forums
 * @uses bbp_get_forum_post_type() To get the forum post type
 * @uses bbp_get_topic_post_type() To get the topic post type
 * @uses walk_page_dropdown_tree() To generate the dropdown using the
 *                                  walker
 * @uses apply_filters() Calls 'bbp_get_dropdown' with the dropdown
 *                        and args
 * @return string The dropdown
 */
function stachestack_bbp_get_dropdown($args = '')
{
    /** Arguments *********************************************************/
    // Parse arguments against default values
    $r = bbp_parse_args($args, array('post_type' => bbp_get_forum_post_type(), 'post_parent' => null, 'post_status' => null, 'selected' => 0, 'exclude' => array(), 'numberposts' => -1, 'orderby' => 'menu_order title', 'order' => 'ASC', 'walker' => '', 'select_id' => 'bbp_forum_id', 'tab' => bbp_get_tab_index(), 'options_only' => false, 'show_none' => false, 'none_found' => false, 'disable_categories' => true, 'disabled' => ''), 'get_dropdown');
    if (empty($r['walker'])) {
        $r['walker'] = new BBP_Walker_Dropdown();
        $r['walker']->tree_type = $r['post_type'];
    }
    // Force 0
    if (is_numeric($r['selected']) && $r['selected'] < 0) {
        $r['selected'] = 0;
    }
    // Force array
    if (!empty($r['exclude']) && !is_array($r['exclude'])) {
        $r['exclude'] = explode(',', $r['exclude']);
    }
    /** Setup variables ***************************************************/
    $retval = '';
    $posts = get_posts(array('post_type' => $r['post_type'], 'post_status' => $r['post_status'], 'exclude' => $r['exclude'], 'post_parent' => $r['post_parent'], 'numberposts' => $r['numberposts'], 'orderby' => $r['orderby'], 'order' => $r['order'], 'walker' => $r['walker'], 'disable_categories' => $r['disable_categories']));
    /** Drop Down *********************************************************/
    // Items found
    if (!empty($posts)) {
        // Build the opening tag for the select element
        if (empty($r['options_only'])) {
            // Should this select appear disabled?
            $disabled = disabled(isset(bbpress()->options[$r['disabled']]), true, false);
            // Setup the tab index attribute
            $tab = !empty($r['tab']) ? ' tabindex="' . intval($r['tab']) . '"' : '';
            // Build the opening tag
            $retval .= '<select class="form-control" name="' . esc_attr($r['select_id']) . '" id="' . esc_attr($r['select_id']) . '"' . $disabled . $tab . '>' . "\n";
        }
        // Get the options
        $retval .= !empty($r['show_none']) ? "\t<option value=\"\" class=\"level-0\">" . esc_html($r['show_none']) . '</option>' : '';
        $retval .= walk_page_dropdown_tree($posts, 0, $r);
        // Build the closing tag for the select element
        if (empty($r['options_only'])) {
            $retval .= '</select>';
        }
        // No items found - Display feedback if no custom message was passed
    } elseif (empty($r['none_found'])) {
        // Switch the response based on post type
        switch ($r['post_type']) {
            // Topics
            case bbp_get_topic_post_type():
                $retval = __('No topics available', 'bbpress');
                break;
                // Forums
            // Forums
            case bbp_get_forum_post_type():
                $retval = __('No forums available', 'bbpress');
                break;
                // Any other
            // Any other
            default:
                $retval = __('None available', 'bbpress');
//.........这里部分代码省略.........