--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-includes/nav-menu.php Mon Nov 19 18:26:13 2012 +0100
@@ -0,0 +1,784 @@
+<?php
+/**
+ * Navigation Menu functions
+ *
+ * @package WordPress
+ * @subpackage Nav_Menus
+ * @since 3.0.0
+ */
+
+/**
+ * Returns a navigation menu object.
+ *
+ * @since 3.0.0
+ *
+ * @uses get_term
+ * @uses get_term_by
+ *
+ * @param string $menu Menu id, slug or name
+ * @return mixed false if $menu param isn't supplied or term does not exist, menu object if successful.
+ */
+function wp_get_nav_menu_object( $menu ) {
+ if ( ! $menu )
+ return false;
+
+ $menu_obj = get_term( $menu, 'nav_menu' );
+
+ if ( ! $menu_obj )
+ $menu_obj = get_term_by( 'slug', $menu, 'nav_menu' );
+
+ if ( ! $menu_obj )
+ $menu_obj = get_term_by( 'name', $menu, 'nav_menu' );
+
+ if ( ! $menu_obj )
+ $menu_obj = false;
+
+ return $menu_obj;
+}
+
+/**
+ * Check if the given ID is a navigation menu.
+ *
+ * Returns true if it is; false otherwise.
+ *
+ * @since 3.0.0
+ *
+ * @param int|string $menu The menu to check (id, slug, or name)
+ * @return bool Whether the menu exists.
+ */
+function is_nav_menu( $menu ) {
+ if ( ! $menu )
+ return false;
+
+ $menu_obj = wp_get_nav_menu_object( $menu );
+
+ if (
+ $menu_obj &&
+ ! is_wp_error( $menu_obj ) &&
+ ! empty( $menu_obj->taxonomy ) &&
+ 'nav_menu' == $menu_obj->taxonomy
+ )
+ return true;
+
+ return false;
+}
+
+/**
+ * Register navigation menus for a theme.
+ *
+ * @since 3.0.0
+ *
+ * @param array $locations Associative array of menu location identifiers (like a slug) and descriptive text.
+ */
+function register_nav_menus( $locations = array() ) {
+ global $_wp_registered_nav_menus;
+
+ add_theme_support( 'menus' );
+
+ $_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.
+ *
+ * @since 3.0.0
+ *
+ * @param string $location Menu location identifier, like a slug.
+ * @param string $description Menu location descriptive text.
+ */
+function register_nav_menu( $location, $description ) {
+ register_nav_menus( array( $location => $description ) );
+}
+/**
+ * Returns an array of all registered navigation menus in a theme
+ *
+ * @since 3.0.0
+ * @return array
+ */
+function get_registered_nav_menus() {
+ global $_wp_registered_nav_menus;
+ if ( isset( $_wp_registered_nav_menus ) )
+ return $_wp_registered_nav_menus;
+ return array();
+}
+
+/**
+ * Returns an array with the registered navigation menu locations and the menu assigned to it
+ *
+ * @since 3.0.0
+ * @return array
+ */
+
+function get_nav_menu_locations() {
+ return get_theme_mod( 'nav_menu_locations' );
+}
+
+/**
+ * Whether a registered nav menu location has a menu assigned to it.
+ *
+ * @since 3.0.0
+ * @param string $location Menu location identifier.
+ * @return bool Whether location has a menu.
+ */
+function has_nav_menu( $location ) {
+ $locations = get_nav_menu_locations();
+ return ( ! empty( $locations[ $location ] ) );
+}
+
+/**
+ * Determine whether the given ID is a nav menu item.
+ *
+ * @since 3.0.0
+ *
+ * @param int $menu_item_id The ID of the potential nav menu item.
+ * @return bool Whether the given ID is that of a nav menu item.
+ */
+function is_nav_menu_item( $menu_item_id = 0 ) {
+ return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) );
+}
+
+/**
+ * Create a Navigation Menu.
+ *
+ * @since 3.0.0
+ *
+ * @param string $menu_name Menu Name
+ * @return mixed Menu object on success|WP_Error on failure
+ */
+function wp_create_nav_menu( $menu_name ) {
+ return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) );
+}
+
+/**
+ * Delete a Navigation Menu.
+ *
+ * @since 3.0.0
+ *
+ * @param string $menu name|id|slug
+ * @return mixed Menu object on success|WP_Error on failure
+ */
+function wp_delete_nav_menu( $menu ) {
+ $menu = wp_get_nav_menu_object( $menu );
+ if ( ! $menu )
+ return false;
+
+ $menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' );
+ if ( ! empty( $menu_objects ) ) {
+ foreach ( $menu_objects as $item ) {
+ wp_delete_post( $item );
+ }
+ }
+
+ $result = wp_delete_term( $menu->term_id, 'nav_menu' );
+
+ if ( $result && !is_wp_error($result) )
+ do_action( 'wp_delete_nav_menu', $menu->term_id );
+
+ return $result;
+}
+
+/**
+ * Save the properties of a menu or create a new menu with those properties.
+ *
+ * @since 3.0.0
+ *
+ * @param int $menu_id The ID of the menu or "0" to create a new menu.
+ * @param array $menu_data The array of menu data.
+ * @return int|error object The menu's ID or WP_Error object.
+ */
+function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
+ $menu_id = (int) $menu_id;
+
+ $_menu = wp_get_nav_menu_object( $menu_id );
+
+ $args = array(
+ 'description' => ( isset( $menu_data['description'] ) ? $menu_data['description'] : '' ),
+ 'name' => ( isset( $menu_data['menu-name'] ) ? $menu_data['menu-name'] : '' ),
+ 'parent' => ( isset( $menu_data['parent'] ) ? (int) $menu_data['parent'] : 0 ),
+ 'slug' => null,
+ );
+
+ // double-check that we're not going to have one menu take the name of another
+ $_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
+ if (
+ $_possible_existing &&
+ ! is_wp_error( $_possible_existing ) &&
+ isset( $_possible_existing->term_id ) &&
+ $_possible_existing->term_id != $menu_id
+ )
+ return new WP_Error( 'menu_exists', sprintf( __('The menu name <strong>%s</strong> conflicts with another menu name. Please try another.'), esc_html( $menu_data['menu-name'] ) ) );
+
+ // menu doesn't already exist, so create a new menu
+ if ( ! $_menu || is_wp_error( $_menu ) ) {
+ $menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
+
+ if ( $menu_exists )
+ return new WP_Error( 'menu_exists', sprintf( __('The menu name <strong>%s</strong> conflicts with another menu name. Please try another.'), esc_html( $menu_data['menu-name'] ) ) );
+
+ $_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args );
+
+ if ( is_wp_error( $_menu ) )
+ return $_menu;
+
+ do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data );
+
+ return (int) $_menu['term_id'];
+ }
+
+ if ( ! $_menu || ! isset( $_menu->term_id ) )
+ return 0;
+
+ $menu_id = (int) $_menu->term_id;
+
+ $update_response = wp_update_term( $menu_id, 'nav_menu', $args );
+
+ if ( is_wp_error( $update_response ) )
+ return $update_response;
+
+ do_action( 'wp_update_nav_menu', $menu_id, $menu_data );
+ return $menu_id;
+}
+
+/**
+ * Save the properties of a menu item or create a new one.
+ *
+ * @since 3.0.0
+ *
+ * @param int $menu_id The ID of the menu. Required. If "0", makes the menu item a draft orphan.
+ * @param int $menu_item_db_id The ID of the menu item. If "0", creates a new menu item.
+ * @param array $menu_item_data The menu item's data.
+ * @return int The menu item's database ID or WP_Error object on failure.
+ */
+function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) {
+ $menu_id = (int) $menu_id;
+ $menu_item_db_id = (int) $menu_item_db_id;
+
+ // make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects
+ if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) )
+ return new WP_Error('update_nav_menu_item_failed', __('The given object ID is not that of a menu item.'));
+
+ $menu = wp_get_nav_menu_object( $menu_id );
+
+ if ( ( ! $menu && 0 !== $menu_id ) || is_wp_error( $menu ) )
+ return $menu;
+
+ $menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
+
+ $count = count( $menu_items );
+
+ $defaults = array(
+ 'menu-item-db-id' => $menu_item_db_id,
+ 'menu-item-object-id' => 0,
+ 'menu-item-object' => '',
+ 'menu-item-parent-id' => 0,
+ 'menu-item-position' => 0,
+ 'menu-item-type' => 'custom',
+ 'menu-item-title' => '',
+ 'menu-item-url' => '',
+ 'menu-item-description' => '',
+ 'menu-item-attr-title' => '',
+ 'menu-item-target' => '',
+ 'menu-item-classes' => '',
+ 'menu-item-xfn' => '',
+ 'menu-item-status' => '',
+ );
+
+ $args = wp_parse_args( $menu_item_data, $defaults );
+
+ if ( 0 == $menu_id ) {
+ $args['menu-item-position'] = 1;
+ } elseif ( 0 == (int) $args['menu-item-position'] ) {
+ $last_item = array_pop( $menu_items );
+ $args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : $count;
+ }
+
+ $original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;
+
+ if ( 'custom' != $args['menu-item-type'] ) {
+ /* if non-custom menu item, then:
+ * use original object's URL
+ * blank default title to sync with original object's
+ */
+
+ $args['menu-item-url'] = '';
+
+ $original_title = '';
+ if ( 'taxonomy' == $args['menu-item-type'] ) {
+ $original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
+ $original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
+ } elseif ( 'post_type' == $args['menu-item-type'] ) {
+
+ $original_object = get_post( $args['menu-item-object-id'] );
+ $original_parent = (int) $original_object->post_parent;
+ $original_title = $original_object->post_title;
+ }
+
+ if ( empty( $args['menu-item-title'] ) || $args['menu-item-title'] == $original_title ) {
+ $args['menu-item-title'] = '';
+
+ // hack to get wp to create a post object when too many properties are empty
+ if ( empty( $args['menu-item-description'] ) )
+ $args['menu-item-description'] = ' ';
+ }
+ }
+
+ // Populate the menu item object
+ $post = array(
+ 'menu_order' => $args['menu-item-position'],
+ 'ping_status' => 0,
+ 'post_content' => $args['menu-item-description'],
+ 'post_excerpt' => $args['menu-item-attr-title'],
+ 'post_parent' => $original_parent,
+ 'post_title' => $args['menu-item-title'],
+ 'post_type' => 'nav_menu_item',
+ );
+
+ if ( 0 != $menu_id )
+ $post['tax_input'] = array( 'nav_menu' => array( intval( $menu->term_id ) ) );
+
+ // New menu item. Default is draft status
+ if ( 0 == $menu_item_db_id ) {
+ $post['ID'] = 0;
+ $post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';
+ $menu_item_db_id = wp_insert_post( $post );
+
+ // Update existing menu item. Default is publish status
+ } else {
+ $post['ID'] = $menu_item_db_id;
+ $post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish';
+ wp_update_post( $post );
+ }
+
+ if ( 'custom' == $args['menu-item-type'] ) {
+ $args['menu-item-object-id'] = $menu_item_db_id;
+ $args['menu-item-object'] = 'custom';
+ }
+
+ if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) )
+ return $menu_item_db_id;
+
+ $menu_item_db_id = (int) $menu_item_db_id;
+
+ update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) );
+ update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', (int) $args['menu-item-parent-id'] );
+ update_post_meta( $menu_item_db_id, '_menu_item_object_id', (int) $args['menu-item-object-id'] );
+ update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) );
+ update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) );
+
+ $args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) );
+ $args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) );
+ update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] );
+ update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] );
+ update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) );
+
+ if ( 0 == $menu_id )
+ update_post_meta( $menu_item_db_id, '_menu_item_orphaned', time() );
+ else
+ delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
+
+ do_action('wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );
+
+ return $menu_item_db_id;
+}
+
+/**
+ * Returns all navigation menu objects.
+ *
+ * @since 3.0.0
+ *
+ * @param array $args Array of arguments passed on to get_terms().
+ * @return array menu objects
+ */
+function wp_get_nav_menus( $args = array() ) {
+ $defaults = array( 'hide_empty' => false, 'orderby' => 'none' );
+ $args = wp_parse_args( $args, $defaults );
+ return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu', $args), $args );
+}
+
+/**
+ * Sort menu items by the desired key.
+ *
+ * @since 3.0.0
+ * @access private
+ *
+ * @param object $a The first object to compare
+ * @param object $b The second object to compare
+ * @return int -1, 0, or 1 if $a is considered to be respectively less than, equal to, or greater than $b.
+ */
+function _sort_nav_menu_items( $a, $b ) {
+ global $_menu_item_sort_prop;
+
+ if ( empty( $_menu_item_sort_prop ) )
+ return 0;
+
+ if ( ! isset( $a->$_menu_item_sort_prop ) || ! isset( $b->$_menu_item_sort_prop ) )
+ return 0;
+
+ $_a = (int) $a->$_menu_item_sort_prop;
+ $_b = (int) $b->$_menu_item_sort_prop;
+
+ if ( $a->$_menu_item_sort_prop == $b->$_menu_item_sort_prop )
+ return 0;
+ elseif ( $_a == $a->$_menu_item_sort_prop && $_b == $b->$_menu_item_sort_prop )
+ return $_a < $_b ? -1 : 1;
+ else
+ 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.
+ *
+ * @since 3.0.0
+ *
+ * @param string $menu menu name, id, or slug
+ * @param string $args
+ * @return mixed $items array of menu items, else false.
+ */
+function wp_get_nav_menu_items( $menu, $args = array() ) {
+ global $_wp_using_ext_object_cache;
+
+ $menu = wp_get_nav_menu_object( $menu );
+
+ if ( ! $menu )
+ return false;
+
+ static $fetched = array();
+
+ $items = get_objects_in_term( $menu->term_id, 'nav_menu' );
+
+ if ( empty( $items ) )
+ return $items;
+
+ $defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item',
+ 'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true,
+ 'update_post_term_cache' => false );
+ $args = wp_parse_args( $args, $defaults );
+ if ( count( $items ) > 1 )
+ $args['include'] = implode( ',', $items );
+ else
+ $args['include'] = $items[0];
+
+ $items = get_posts( $args );
+
+ if ( is_wp_error( $items ) || ! is_array( $items ) )
+ return false;
+
+ // Get all posts and terms at once to prime the caches
+ if ( empty( $fetched[$menu->term_id] ) || $_wp_using_ext_object_cache ) {
+ $fetched[$menu->term_id] = true;
+ $posts = array();
+ $terms = array();
+ foreach ( $items as $item ) {
+ $object_id = get_post_meta( $item->ID, '_menu_item_object_id', true );
+ $object = get_post_meta( $item->ID, '_menu_item_object', true );
+ $type = get_post_meta( $item->ID, '_menu_item_type', true );
+
+ if ( 'post_type' == $type )
+ $posts[$object][] = $object_id;
+ elseif ( 'taxonomy' == $type)
+ $terms[$object][] = $object_id;
+ }
+
+ if ( ! empty( $posts ) ) {
+ foreach ( array_keys($posts) as $post_type ) {
+ get_posts( array('post__in' => $posts[$post_type], 'post_type' => $post_type, 'nopaging' => true, 'update_post_term_cache' => false) );
+ }
+ }
+ unset($posts);
+
+ if ( ! empty( $terms ) ) {
+ foreach ( array_keys($terms) as $taxonomy ) {
+ get_terms($taxonomy, array('include' => $terms[$taxonomy]) );
+ }
+ }
+ unset($terms);
+ }
+
+ $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');
+ $i = 1;
+ foreach( $items as $k => $item ) {
+ $items[$k]->$args['output_key'] = $i++;
+ }
+ }
+
+ return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args );
+}
+
+/**
+ * Decorates a menu item object with the shared navigation menu item properties.
+ *
+ * Properties:
+ * - db_id: The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist).
+ * - object_id: The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories.
+ * - type: The family of objects originally represented, such as "post_type" or "taxonomy."
+ * - object: The type of object originally represented, such as "category," "post", or "attachment."
+ * - type_label: The singular label used to describe this type of menu item.
+ * - post_parent: The DB ID of the original object's parent object, if any (0 otherwise).
+ * - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise.
+ * - url: The URL to which this menu item points.
+ * - title: The title of this menu item.
+ * - target: The target attribute of the link element for this menu item.
+ * - attr_title: The title attribute of the link element for this menu item.
+ * - classes: The array of class attribute values for the link element of this menu item.
+ * - xfn: The XFN relationship expressed in the link of this menu item.
+ * - description: The description of this menu item.
+ *
+ * @since 3.0.0
+ *
+ * @param object $menu_item The menu item to modify.
+ * @return object $menu_item The menu item with standard menu item properties.
+ */
+function wp_setup_nav_menu_item( $menu_item ) {
+ if ( isset( $menu_item->post_type ) ) {
+ if ( 'nav_menu_item' == $menu_item->post_type ) {
+ $menu_item->db_id = (int) $menu_item->ID;
+ $menu_item->menu_item_parent = empty( $menu_item->menu_item_parent ) ? get_post_meta( $menu_item->ID, '_menu_item_menu_item_parent', true ) : $menu_item->menu_item_parent;
+ $menu_item->object_id = empty( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id;
+ $menu_item->object = empty( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object;
+ $menu_item->type = empty( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type;
+
+ if ( 'post_type' == $menu_item->type ) {
+ $object = get_post_type_object( $menu_item->object );
+ 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 );
+ $original_title = $original_object->post_title;
+ $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
+
+ } elseif ( 'taxonomy' == $menu_item->type ) {
+ $object = get_taxonomy( $menu_item->object );
+ 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 {
+ $menu_item->type_label = __('Custom');
+ $menu_item->title = $menu_item->post_title;
+ $menu_item->url = empty( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url;
+ }
+
+ $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;
+
+ 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;
+ } else {
+ $menu_item->db_id = 0;
+ $menu_item->menu_item_parent = 0;
+ $menu_item->object_id = (int) $menu_item->ID;
+ $menu_item->type = 'post_type';
+
+ $object = get_post_type_object( $menu_item->post_type );
+ $menu_item->object = $object->name;
+ $menu_item->type_label = $object->labels->singular_name;
+
+ $menu_item->title = $menu_item->post_title;
+ $menu_item->url = get_permalink( $menu_item->ID );
+ $menu_item->target = '';
+
+ $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 = '';
+ }
+ } elseif ( isset( $menu_item->taxonomy ) ) {
+ $menu_item->ID = $menu_item->term_id;
+ $menu_item->db_id = 0;
+ $menu_item->menu_item_parent = 0;
+ $menu_item->object_id = (int) $menu_item->term_id;
+ $menu_item->post_parent = (int) $menu_item->parent;
+ $menu_item->type = 'taxonomy';
+
+ $object = get_taxonomy( $menu_item->taxonomy );
+ $menu_item->object = $object->name;
+ $menu_item->type_label = $object->labels->singular_name;
+
+ $menu_item->title = $menu_item->name;
+ $menu_item->url = get_term_link( $menu_item, $menu_item->taxonomy );
+ $menu_item->target = '';
+ $menu_item->attr_title = '';
+ $menu_item->description = get_term_field( 'description', $menu_item->term_id, $menu_item->taxonomy );
+ $menu_item->classes = array();
+ $menu_item->xfn = '';
+
+ }
+
+ return apply_filters( 'wp_setup_nav_menu_item', $menu_item );
+}
+
+/**
+ * Get the menu items associated with a particular object.
+ *
+ * @since 3.0.0
+ *
+ * @param int $object_id The ID of the original object.
+ * @param string $object_type The type of object, such as "taxonomy" or "post_type."
+ * @return array The array of menu item IDs; empty array if none;
+ */
+function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type' ) {
+ $object_id = (int) $object_id;
+ $menu_item_ids = array();
+
+ $query = new WP_Query;
+ $menu_items = $query->query(
+ array(
+ 'meta_key' => '_menu_item_object_id',
+ 'meta_value' => $object_id,
+ 'post_status' => 'any',
+ 'post_type' => 'nav_menu_item',
+ 'posts_per_page' => -1,
+ )
+ );
+ foreach( (array) $menu_items as $menu_item ) {
+ if ( isset( $menu_item->ID ) && is_nav_menu_item( $menu_item->ID ) ) {
+ if ( get_post_meta( $menu_item->ID, '_menu_item_type', true ) != $object_type )
+ continue;
+
+ $menu_item_ids[] = (int) $menu_item->ID;
+ }
+ }
+
+ return array_unique( $menu_item_ids );
+}
+
+/**
+ * Callback for handling a menu item when its original object is deleted.
+ *
+ * @since 3.0.0
+ * @access private
+ *
+ * @param int $object_id The ID of the original object being trashed.
+ *
+ */
+function _wp_delete_post_menu_item( $object_id = 0 ) {
+ $object_id = (int) $object_id;
+
+ $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'post_type' );
+
+ foreach( (array) $menu_item_ids as $menu_item_id ) {
+ wp_delete_post( $menu_item_id, true );
+ }
+}
+
+/**
+ * Callback for handling a menu item when its original object is deleted.
+ *
+ * @since 3.0.0
+ * @access private
+ *
+ * @param int $object_id The ID of the original object being trashed.
+ *
+ */
+function _wp_delete_tax_menu_item( $object_id = 0 ) {
+ $object_id = (int) $object_id;
+
+ $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy' );
+
+ foreach( (array) $menu_item_ids as $menu_item_id ) {
+ wp_delete_post( $menu_item_id, true );
+ }
+}
+
+/**
+ * Automatically add newly published page objects to menus with that as an option.
+ *
+ * @since 3.0.0
+ * @access private
+ *
+ * @param string $new_status The new status of the post object.
+ * @param string $old_status The old status of the post object.
+ * @param object $post The post object being transitioned from one status to another.
+ * @return void
+ */
+function _wp_auto_add_pages_to_menu( $new_status, $old_status, $post ) {
+ if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type )
+ return;
+ if ( ! empty( $post->post_parent ) )
+ return;
+ $auto_add = get_option( 'nav_menu_options' );
+ if ( empty( $auto_add ) || ! is_array( $auto_add ) || ! isset( $auto_add['auto_add'] ) )
+ return;
+ $auto_add = $auto_add['auto_add'];
+ if ( empty( $auto_add ) || ! is_array( $auto_add ) )
+ return;
+
+ $args = array(
+ 'menu-item-object-id' => $post->ID,
+ 'menu-item-object' => $post->post_type,
+ 'menu-item-type' => 'post_type',
+ 'menu-item-status' => 'publish',
+ );
+
+ foreach ( $auto_add as $menu_id ) {
+ $items = wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
+ if ( ! is_array( $items ) )
+ continue;
+ foreach ( $items as $item ) {
+ if ( $post->ID == $item->object_id )
+ continue 2;
+ }
+ wp_update_nav_menu_item( $menu_id, 0, $args );
+ }
+}