wp_nav_menu_item_post_type_meta_box

函数
wp_nav_menu_item_post_type_meta_box ( $data_object, $box )
参数
  • (string) $data_object Not used.
    Required:
  • (array) $box { Post type menu item meta box arguments. @type string $id Meta box 'id' attribute. @type string $title Meta box title. @type callable $callback Meta box display callback. @type WP_Post_Type $args Extra meta box arguments (the post type object for this meta box). }
    Required:
定义位置
相关方法
wp_nav_menu_post_type_meta_boxeswp_nav_menu_item_taxonomy_meta_boxwp_nav_menu_item_link_meta_boxwp_nav_menu_taxonomy_meta_boxeswp_nav_menu_locations_meta_box
引入
3.0.0
弃用
-

wp_nav_menu_item_post_type_meta_box: 这个钩子用来在WordPress导航菜单项目编辑屏幕上添加一个元框,允许用户选择一个文章类型。

显示一个特定组的贡献者列表。

function wp_nav_menu_item_post_type_meta_box( $data_object, $box ) {
	global $_nav_menu_placeholder, $nav_menu_selected_id;

	$post_type_name = $box['args']->name;
	$post_type      = get_post_type_object( $post_type_name );
	$tab_name       = $post_type_name . '-tab';

	// Paginate browsing for large numbers of post objects.
	$per_page = 50;
	$pagenum  = isset( $_REQUEST[ $tab_name ] ) && isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 1;
	$offset   = 0 < $pagenum ? $per_page * ( $pagenum - 1 ) : 0;

	$args = array(
		'offset'                 => $offset,
		'order'                  => 'ASC',
		'orderby'                => 'title',
		'posts_per_page'         => $per_page,
		'post_type'              => $post_type_name,
		'suppress_filters'       => true,
		'update_post_term_cache' => false,
		'update_post_meta_cache' => false,
	);

	if ( isset( $box['args']->_default_query ) ) {
		$args = array_merge( $args, (array) $box['args']->_default_query );
	}

	/*
	 * If we're dealing with pages, let's prioritize the Front Page,
	 * Posts Page and Privacy Policy Page at the top of the list.
	 */
	$important_pages = array();
	if ( 'page' === $post_type_name ) {
		$suppress_page_ids = array();

		// Insert Front Page or custom Home link.
		$front_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_on_front' ) : 0;

		$front_page_obj = null;
		if ( ! empty( $front_page ) ) {
			$front_page_obj                = get_post( $front_page );
			$front_page_obj->front_or_home = true;

			$important_pages[]   = $front_page_obj;
			$suppress_page_ids[] = $front_page_obj->ID;
		} else {
			$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? (int) $_nav_menu_placeholder - 1 : -1;
			$front_page_obj        = (object) array(
				'front_or_home' => true,
				'ID'            => 0,
				'object_id'     => $_nav_menu_placeholder,
				'post_content'  => '',
				'post_excerpt'  => '',
				'post_parent'   => '',
				'post_title'    => _x( 'Home', 'nav menu home label' ),
				'post_type'     => 'nav_menu_item',
				'type'          => 'custom',
				'url'           => home_url( '/' ),
			);

			$important_pages[] = $front_page_obj;
		}

		// Insert Posts Page.
		$posts_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_for_posts' ) : 0;

		if ( ! empty( $posts_page ) ) {
			$posts_page_obj             = get_post( $posts_page );
			$posts_page_obj->posts_page = true;

			$important_pages[]   = $posts_page_obj;
			$suppress_page_ids[] = $posts_page_obj->ID;
		}

		// Insert Privacy Policy Page.
		$privacy_policy_page_id = (int) get_option( 'wp_page_for_privacy_policy' );

		if ( ! empty( $privacy_policy_page_id ) ) {
			$privacy_policy_page = get_post( $privacy_policy_page_id );
			if ( $privacy_policy_page instanceof WP_Post && 'publish' === $privacy_policy_page->post_status ) {
				$privacy_policy_page->privacy_policy_page = true;

				$important_pages[]   = $privacy_policy_page;
				$suppress_page_ids[] = $privacy_policy_page->ID;
			}
		}

		// Add suppression array to arguments for WP_Query.
		if ( ! empty( $suppress_page_ids ) ) {
			$args['post__not_in'] = $suppress_page_ids;
		}
	}

	// @todo Transient caching of these results with proper invalidation on updating of a post of this type.
	$get_posts = new WP_Query;
	$posts     = $get_posts->query( $args );

	// Only suppress and insert when more than just suppression pages available.
	if ( ! $get_posts->post_count ) {
		if ( ! empty( $suppress_page_ids ) ) {
			unset( $args['post__not_in'] );
			$get_posts = new WP_Query;
			$posts     = $get_posts->query( $args );
		} else {
			echo '<p>' . __( 'No items.' ) . '</p>';
			return;
		}
	} elseif ( ! empty( $important_pages ) ) {
		$posts = array_merge( $important_pages, $posts );
	}

	$num_pages = $get_posts->max_num_pages;

	$page_links = paginate_links(
		array(
			'base'               => add_query_arg(
				array(
					$tab_name     => 'all',
					'paged'       => '%#%',
					'item-type'   => 'post_type',
					'item-object' => $post_type_name,
				)
			),
			'format'             => '',
			'prev_text'          => '<span aria-label="' . esc_attr__( 'Previous page' ) . '">' . __( '&laquo;' ) . '</span>',
			'next_text'          => '<span aria-label="' . esc_attr__( 'Next page' ) . '">' . __( '&raquo;' ) . '</span>',
			'before_page_number' => '<span class="screen-reader-text">' . __( 'Page' ) . '</span> ',
			'total'              => $num_pages,
			'current'            => $pagenum,
		)
	);

	$db_fields = false;
	if ( is_post_type_hierarchical( $post_type_name ) ) {
		$db_fields = array(
			'parent' => 'post_parent',
			'id'     => 'ID',
		);
	}

	$walker = new Walker_Nav_Menu_Checklist( $db_fields );

	$current_tab = 'most-recent';

	if ( isset( $_REQUEST[ $tab_name ] ) && in_array( $_REQUEST[ $tab_name ], array( 'all', 'search' ), true ) ) {
		$current_tab = $_REQUEST[ $tab_name ];
	}

	if ( ! empty( $_REQUEST[ 'quick-search-posttype-' . $post_type_name ] ) ) {
		$current_tab = 'search';
	}

	$removed_args = array(
		'action',
		'customlink-tab',
		'edit-menu-item',
		'menu-item',
		'page-tab',
		'_wpnonce',
	);

	$most_recent_url = '';
	$view_all_url    = '';
	$search_url      = '';
	if ( $nav_menu_selected_id ) {
		$most_recent_url = esc_url( add_query_arg( $tab_name, 'most-recent', remove_query_arg( $removed_args ) ) );
		$view_all_url    = esc_url( add_query_arg( $tab_name, 'all', remove_query_arg( $removed_args ) ) );
		$search_url      = esc_url( add_query_arg( $tab_name, 'search', remove_query_arg( $removed_args ) ) );
	}
	?>
	<div id="posttype-<?php echo $post_type_name; ?>" class="posttypediv">
		<ul id="posttype-<?php echo $post_type_name; ?>-tabs" class="posttype-tabs add-menu-item-tabs">
			<li <?php echo ( 'most-recent' === $current_tab ? ' class="tabs"' : '' ); ?>>
				<a class="nav-tab-link" data-type="tabs-panel-posttype-<?php echo esc_attr( $post_type_name ); ?>-most-recent" href="<?php echo $most_recent_url; ?>#tabs-panel-posttype-<?php echo $post_type_name; ?>-most-recent">
					<?php _e( 'Most Recent' ); ?>
				</a>
			</li>
			<li <?php echo ( 'all' === $current_tab ? ' class="tabs"' : '' ); ?>>
				<a class="nav-tab-link" data-type="<?php echo esc_attr( $post_type_name ); ?>-all" href="<?php echo $view_all_url; ?>#<?php echo $post_type_name; ?>-all">
					<?php _e( 'View All' ); ?>
				</a>
			</li>
			<li <?php echo ( 'search' === $current_tab ? ' class="tabs"' : '' ); ?>>
				<a class="nav-tab-link" data-type="tabs-panel-posttype-<?php echo esc_attr( $post_type_name ); ?>-search" href="<?php echo $search_url; ?>#tabs-panel-posttype-<?php echo $post_type_name; ?>-search">
					<?php _e( 'Search' ); ?>
				</a>
			</li>
		</ul><!-- .posttype-tabs -->

		<div id="tabs-panel-posttype-<?php echo $post_type_name; ?>-most-recent" class="tabs-panel <?php echo ( 'most-recent' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" role="region" aria-label="<?php _e( 'Most Recent' ); ?>" tabindex="0">
			<ul id="<?php echo $post_type_name; ?>checklist-most-recent" class="categorychecklist form-no-clear">
				<?php
				$recent_args    = array_merge(
					$args,
					array(
						'orderby'        => 'post_date',
						'order'          => 'DESC',
						'posts_per_page' => 15,
					)
				);
				$most_recent    = $get_posts->query( $recent_args );
				$args['walker'] = $walker;

				/**
				 * Filters the posts displayed in the 'Most Recent' tab of the current
				 * post type's menu items meta box.
				 *
				 * The dynamic portion of the hook name, `$post_type_name`, refers to the post type name.
				 *
				 * Possible hook names include:
				 *
				 *  - `nav_menu_items_post_recent`
				 *  - `nav_menu_items_page_recent`
				 *
				 * @since 4.3.0
				 * @since 4.9.0 Added the `$recent_args` parameter.
				 *
				 * @param WP_Post[] $most_recent An array of post objects being listed.
				 * @param array     $args        An array of `WP_Query` arguments for the meta box.
				 * @param array     $box         Arguments passed to `wp_nav_menu_item_post_type_meta_box()`.
				 * @param array     $recent_args An array of `WP_Query` arguments for 'Most Recent' tab.
				 */
				$most_recent = apply_filters( "nav_menu_items_{$post_type_name}_recent", $most_recent, $args, $box, $recent_args );

				echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $most_recent ), 0, (object) $args );
				?>
			</ul>
		</div><!-- /.tabs-panel -->

		<div class="tabs-panel <?php echo ( 'search' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" id="tabs-panel-posttype-<?php echo $post_type_name; ?>-search" role="region" aria-label="<?php echo $post_type->labels->search_items; ?>" tabindex="0">
			<?php
			if ( isset( $_REQUEST[ 'quick-search-posttype-' . $post_type_name ] ) ) {
				$searched       = esc_attr( $_REQUEST[ 'quick-search-posttype-' . $post_type_name ] );
				$search_results = get_posts(
					array(
						's'         => $searched,
						'post_type' => $post_type_name,
						'fields'    => 'all',
						'order'     => 'DESC',
					)
				);
			} else {
				$searched       = '';
				$search_results = array();
			}
			?>
			<p class="quick-search-wrap">
				<label for="quick-search-posttype-<?php echo $post_type_name; ?>" class="screen-reader-text"><?php _e( 'Search' ); ?></label>
				<input type="search"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="quick-search" value="<?php echo $searched; ?>" name="quick-search-posttype-<?php echo $post_type_name; ?>" id="quick-search-posttype-<?php echo $post_type_name; ?>" />
				<span class="spinner"></span>
				<?php submit_button( __( 'Search' ), 'small quick-search-submit hide-if-js', 'submit', false, array( 'id' => 'submit-quick-search-posttype-' . $post_type_name ) ); ?>
			</p>

			<ul id="<?php echo $post_type_name; ?>-search-checklist" data-wp-lists="list:<?php echo $post_type_name; ?>" class="categorychecklist form-no-clear">
			<?php if ( ! empty( $search_results ) && ! is_wp_error( $search_results ) ) : ?>
				<?php
				$args['walker'] = $walker;
				echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $search_results ), 0, (object) $args );
				?>
			<?php elseif ( is_wp_error( $search_results ) ) : ?>
				<li><?php echo $search_results->get_error_message(); ?></li>
			<?php elseif ( ! empty( $searched ) ) : ?>
				<li><?php _e( 'No results found.' ); ?></li>
			<?php endif; ?>
			</ul>
		</div><!-- /.tabs-panel -->

		<div id="<?php echo $post_type_name; ?>-all" class="tabs-panel tabs-panel-view-all <?php echo ( 'all' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" role="region" aria-label="<?php echo $post_type->labels->all_items; ?>" tabindex="0">
			<?php if ( ! empty( $page_links ) ) : ?>
				<div class="add-menu-item-pagelinks">
					<?php echo $page_links; ?>
				</div>
			<?php endif; ?>
			<ul id="<?php echo $post_type_name; ?>checklist" data-wp-lists="list:<?php echo $post_type_name; ?>" class="categorychecklist form-no-clear">
				<?php
				$args['walker'] = $walker;

				if ( $post_type->has_archive ) {
					$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? (int) $_nav_menu_placeholder - 1 : -1;
					array_unshift(
						$posts,
						(object) array(
							'ID'           => 0,
							'object_id'    => $_nav_menu_placeholder,
							'object'       => $post_type_name,
							'post_content' => '',
							'post_excerpt' => '',
							'post_title'   => $post_type->labels->archives,
							'post_type'    => 'nav_menu_item',
							'type'         => 'post_type_archive',
							'url'          => get_post_type_archive_link( $post_type_name ),
						)
					);
				}

				/**
				 * Filters the posts displayed in the 'View All' tab of the current
				 * post type's menu items meta box.
				 *
				 * The dynamic portion of the hook name, `$post_type_name`, refers
				 * to the slug of the current post type.
				 *
				 * Possible hook names include:
				 *
				 *  - `nav_menu_items_post`
				 *  - `nav_menu_items_page`
				 *
				 * @since 3.2.0
				 * @since 4.6.0 Converted the `$post_type` parameter to accept a WP_Post_Type object.
				 *
				 * @see WP_Query::query()
				 *
				 * @param object[]     $posts     The posts for the current post type. Mostly `WP_Post` objects, but
				 *                                can also contain "fake" post objects to represent other menu items.
				 * @param array        $args      An array of `WP_Query` arguments.
				 * @param WP_Post_Type $post_type The current post type object for this menu item meta box.
				 */
				$posts = apply_filters( "nav_menu_items_{$post_type_name}", $posts, $args, $post_type );

				$checkbox_items = walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $posts ), 0, (object) $args );

				echo $checkbox_items;
				?>
			</ul>
			<?php if ( ! empty( $page_links ) ) : ?>
				<div class="add-menu-item-pagelinks">
					<?php echo $page_links; ?>
				</div>
			<?php endif; ?>
		</div><!-- /.tabs-panel -->

		<p class="button-controls wp-clearfix" data-items-type="posttype-<?php echo esc_attr( $post_type_name ); ?>">
			<span class="list-controls hide-if-no-js">
				<input type="checkbox"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> id="<?php echo esc_attr( $tab_name ); ?>" class="select-all" />
				<label for="<?php echo esc_attr( $tab_name ); ?>"><?php _e( 'Select All' ); ?></label>
			</span>

			<span class="add-to-menu">
				<input type="submit"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="button submit-add-to-menu right" value="<?php esc_attr_e( 'Add to Menu' ); ?>" name="add-post-type-menu-item" id="<?php echo esc_attr( 'submit-posttype-' . $post_type_name ); ?>" />
				<span class="spinner"></span>
			</span>
		</p>

	</div><!-- /.posttypediv -->
	<?php
}

常见问题

FAQs
查看更多 >