X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/699231ae09f7057a4d0000cdf32e50a3df6a04ca..9c2096d803812dacbdf6cf8efe90053e39f00b96:/wp-includes/nav-menu.php

diff --git a/wp-includes/nav-menu.php b/wp-includes/nav-menu.php
index 0d6dd322..6a622b27 100644
--- a/wp-includes/nav-menu.php
+++ b/wp-includes/nav-menu.php
@@ -78,6 +78,23 @@ function register_nav_menus( $locations = array() ) {
 	$_wp_registered_nav_menus = array_merge( (array) $_wp_registered_nav_menus, $locations );
 }
 
+/**
+ * Unregisters a navigation menu for a theme.
+ *
+ * @param array $location the menu location identifier
+ *
+ * @return bool True on success, false on failure.
+ */
+function unregister_nav_menu( $location ) {
+	global $_wp_registered_nav_menus;
+
+	if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) {
+		unset( $_wp_registered_nav_menus[$location] );
+		return true;
+	}
+	return false;
+}
+
 /**
  * Register a navigation menu for a theme.
  *
@@ -386,7 +403,7 @@ function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item
  *
  * @since 3.0.0
  *
- * @param $args array Array of arguments passed on to get_terms().
+ * @param array $args Array of arguments passed on to get_terms().
  * @return array menu objects
  */
 function wp_get_nav_menus( $args = array() ) {
@@ -425,6 +442,22 @@ function _sort_nav_menu_items( $a, $b ) {
 		return strcmp( $a->$_menu_item_sort_prop, $b->$_menu_item_sort_prop );
 }
 
+/**
+ * Returns if a menu item is valid. Bug #13958
+ *
+ * @since 3.2.0
+ * @access private
+ *
+ * @param object $menu_item The menu item to check
+ * @return bool false if invalid, else true.
+ */
+function _is_valid_nav_menu_item( $item ) {
+	if ( ! empty( $item->_invalid ) )
+		return false;
+
+	return true;
+}
+
 /**
  * Returns all menu items of a navigation menu.
  *
@@ -496,6 +529,9 @@ function wp_get_nav_menu_items( $menu, $args = array() ) {
 
 	$items = array_map( 'wp_setup_nav_menu_item', $items );
 
+	if ( ! is_admin() ) // Remove invalid items only in frontend
+		$items = array_filter( $items, '_is_valid_nav_menu_item' );
+
 	if ( ARRAY_A == $args['output'] ) {
 		$GLOBALS['_menu_item_sort_prop'] = $args['output_key'];
 		usort($items, '_sort_nav_menu_items');
@@ -543,7 +579,13 @@ function wp_setup_nav_menu_item( $menu_item ) {
 
 			if ( 'post_type' == $menu_item->type ) {
 				$object = get_post_type_object( $menu_item->object );
-				$menu_item->type_label = $object->labels->singular_name;
+				if ( $object ) {
+					$menu_item->type_label = $object->labels->singular_name;
+				} else {
+					$menu_item->type_label = $menu_item->object;
+					$menu_item->_invalid = true;
+				}
+
 				$menu_item->url = get_permalink( $menu_item->object_id );
 
 				$original_object = get_post( $menu_item->object_id );
@@ -552,11 +594,19 @@ function wp_setup_nav_menu_item( $menu_item ) {
 
 			} elseif ( 'taxonomy' == $menu_item->type ) {
 				$object = get_taxonomy( $menu_item->object );
-				$menu_item->type_label = $object->labels->singular_name;
+				if ( $object ) {
+					$menu_item->type_label = $object->labels->singular_name;
+				} else {
+					$menu_item->type_label = $menu_item->object;
+					$menu_item->_invalid = true;
+				}
+
 				$term_url = get_term_link( (int) $menu_item->object_id, $menu_item->object );
 				$menu_item->url = !is_wp_error( $term_url ) ? $term_url : '';
 
 				$original_title = get_term_field( 'name', $menu_item->object_id, $menu_item->object, 'raw' );
+				if ( is_wp_error( $original_title ) )
+					$original_title = false;
 				$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
 
 			} else {
@@ -568,7 +618,9 @@ function wp_setup_nav_menu_item( $menu_item ) {
 			$menu_item->target = empty( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target;
 
 			$menu_item->attr_title = empty( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title;
-			$menu_item->description = empty( $menu_item->description ) ? apply_filters( 'nav_menu_description', $menu_item->post_content ) : $menu_item->description;
+
+			if ( empty( $menu_item->description ) )
+				$menu_item->description = apply_filters( 'nav_menu_description',  wp_trim_words( $menu_item->post_content, 200 ) );
 
 			$menu_item->classes = empty( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;
 			$menu_item->xfn = empty( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn;
@@ -586,8 +638,8 @@ function wp_setup_nav_menu_item( $menu_item ) {
 			$menu_item->url = get_permalink( $menu_item->ID );
 			$menu_item->target = '';
 
-			$menu_item->attr_title = apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt );
-			$menu_item->description = apply_filters( 'nav_menu_description', $menu_item->post_content );
+			$menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' );
+			$menu_item->description = apply_filters( 'nav_menu_description', '' );
 			$menu_item->classes = array();
 			$menu_item->xfn = '';
 		}
@@ -636,7 +688,7 @@ function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_
 			'meta_value' => $object_id,
 			'post_status' => 'any',
 			'post_type' => 'nav_menu_item',
-			'showposts' => -1,
+			'posts_per_page' => -1,
 		)
 	);
 	foreach( (array) $menu_items as $menu_item ) {