Question

wp_nav_menu_item_post_type_meta_box( string $object,  array $box )

Displays a meta box for a post type menu item.

---

description

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参数

$object

(string) (Required) Not used.

$box

(array) (Required) Post type menu item meta box arguments.

• 'id'
  (string) Meta box 'id' attribute.
• 'title'
  (string) Meta box title.
• 'callback'
  (string) Meta box display callback.
• 'args'
  (WP_Post_Type) Extra meta box arguments (the post type object for this meta box).

---

源代码

File: wp-admin/includes/nav-menu.php

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

	$post_type_name = $box['args']->name;

	// Paginate browsing for large numbers of post objects.
	$per_page = 50;
	$pagenum = isset( $_REQUEST[$post_type_name . '-tab'] ) && 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 );

	// @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 );
	if ( ! $get_posts->post_count ) {
		echo '<p>' . __( 'No items.' ) . '</p>';
		return;
	}

	$num_pages = $get_posts->max_num_pages;

	$page_links = paginate_links( array(
		'base' => add_query_arg(
			array(
				$post_type_name . '-tab' => '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( $_REQUEST[$post_type_name . '-tab'] ) && in_array( $_REQUEST[$post_type_name . '-tab'], array('all', 'search') ) ) {
		$current_tab = $_REQUEST[$post_type_name . '-tab'];
	}

	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',
	);

	?>
	<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 if ( $nav_menu_selected_id ) echo esc_url(add_query_arg($post_type_name . '-tab', 'most-recent', remove_query_arg($removed_args))); ?>#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 if ( $nav_menu_selected_id ) echo esc_url(add_query_arg($post_type_name . '-tab', 'all', remove_query_arg($removed_args))); ?>#<?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 if ( $nav_menu_selected_id ) echo esc_url(add_query_arg($post_type_name . '-tab', 'search', remove_query_arg($removed_args))); ?>#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' );
		?>">
			<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.
				 *
				 * @since 4.3.0
				 *
				 * @param array $most_recent An array of post objects being listed.
				 * @param array $args        An array of WP_Query arguments.
				 * @param array $box         Arguments passed to wp_nav_menu_item_post_type_meta_box().
				 */
				$most_recent = apply_filters( "nav_menu_items_{$post_type_name}_recent", $most_recent, $args, $box );

				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">
			<?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" 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' );
		?>">
			<?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 we're dealing with pages, let's put a checkbox for the front
				 * page at the top of the list.
				 */
				if ( 'page' == $post_type_name ) {
					$front_page = 'page' == get_option('show_on_front') ? (int) get_option( 'page_on_front' ) : 0;
					if ( ! empty( $front_page ) ) {
$front_page_obj = get_post( $front_page );
$front_page_obj->front_or_home = true;
array_unshift( $posts, $front_page_obj );
					} else {
$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval($_nav_menu_placeholder) - 1 : -1;
array_unshift( $posts, (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('/'),
) );
					}
				}

				$post_type = get_post_type_object( $post_type_name );

				if ( $post_type->has_archive ) {
					$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval($_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, `$post_type_name`, refers
				 * to the slug of the current post type.
				 *
				 * @since 3.2.0
				 * @since 4.6.0 Converted the `$post_type` parameter to accept a WP_Post_Type object.
				 *
				 * @see WP_Query::query()
				 *
				 * @param array        $posts     The posts for the current post type.
				 * @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 );

				if ( 'all' == $current_tab && ! empty( $_REQUEST['selectall'] ) ) {
					$checkbox_items = preg_replace('/(type=(.)checkbox(\2))/', '$1 checked=$2checked$2', $checkbox_items);

				}

				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">
			<span class="list-controls">
				<a href="<?php
					echo esc_url( add_query_arg(
array(
$post_type_name . '-tab' => 'all',
'selectall' => 1,
),
remove_query_arg( $removed_args )
					));
				?>#posttype-<?php echo $post_type_name; ?>" class="select-all aria-button-if-js"><?php _e( 'Select All' ); ?></a>
			</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
}

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更新日志

Version	description
3.0.0	Introduced.

---

相关函数

Uses

• wp-admin/includes/nav-menu.php: nav_menu_items_{$post_type_name}_recent
• wp-admin/includes/template.php: submit_button()
• wp-admin/includes/class-walker-nav-menu-checklist.php: Walker_Nav_Menu_Checklist::__construct()
• wp-admin/includes/nav-menu.php: wp_nav_menu_disabled_check()
• wp-admin/includes/nav-menu.php: nav_menu_items_{$post_type_name}
• wp-includes/l10n.php: __()
• wp-includes/l10n.php: esc_attr__()
• wp-includes/l10n.php: _e()
• wp-includes/l10n.php: _x()
• wp-includes/l10n.php: esc_attr_e()
• wp-includes/formatting.php: esc_attr()
• wp-includes/formatting.php: esc_url()
• wp-includes/general-template.php: paginate_links()
• wp-includes/class-wp-query.php: WP_Query::__construct()
• wp-includes/functions.php: absint()
• wp-includes/functions.php: add_query_arg()
• wp-includes/functions.php: remove_query_arg()
• wp-includes/link-template.php: home_url()
• wp-includes/link-template.php: get_post_type_archive_link()
• wp-includes/plugin.php: apply_filters()
• wp-includes/option.php: get_option()
• wp-includes/nav-menu-template.php: walk_nav_menu_tree()
• wp-includes/post.php: get_posts()
• wp-includes/post.php: is_post_type_hierarchical()
• wp-includes/post.php: get_post()
• wp-includes/post.php: get_post_type_object()
• wp-includes/load.php: is_wp_error()
Show 22 more uses Hide more uses

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User Contributed Notes