3 * Navigation Menu functions
6 * @subpackage Nav_Menus
11 * Returns a navigation menu object.
18 * @param string $menu Menu id, slug or name
19 * @return mixed false if $menu param isn't supplied or term does not exist, menu object if successful.
21 function wp_get_nav_menu_object( $menu ) {
25 $menu_obj = get_term( $menu, 'nav_menu' );
28 $menu_obj = get_term_by( 'slug', $menu, 'nav_menu' );
31 $menu_obj = get_term_by( 'name', $menu, 'nav_menu' );
40 * Check if the given ID is a navigation menu.
42 * Returns true if it is; false otherwise.
46 * @param int|string $menu The menu to check (id, slug, or name)
47 * @return bool Whether the menu exists.
49 function is_nav_menu( $menu ) {
53 $menu_obj = wp_get_nav_menu_object( $menu );
57 ! is_wp_error( $menu_obj ) &&
58 ! empty( $menu_obj->taxonomy ) &&
59 'nav_menu' == $menu_obj->taxonomy
67 * Register navigation menus for a theme.
71 * @param array $locations Associative array of menu location identifiers (like a slug) and descriptive text.
73 function register_nav_menus( $locations = array() ) {
74 global $_wp_registered_nav_menus;
76 add_theme_support( 'menus' );
78 $_wp_registered_nav_menus = array_merge( (array) $_wp_registered_nav_menus, $locations );
82 * Unregisters a navigation menu for a theme.
84 * @param array $location the menu location identifier
86 * @return bool True on success, false on failure.
88 function unregister_nav_menu( $location ) {
89 global $_wp_registered_nav_menus;
91 if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) {
92 unset( $_wp_registered_nav_menus[$location] );
99 * Register a navigation menu for a theme.
103 * @param string $location Menu location identifier, like a slug.
104 * @param string $description Menu location descriptive text.
106 function register_nav_menu( $location, $description ) {
107 register_nav_menus( array( $location => $description ) );
110 * Returns an array of all registered navigation menus in a theme
115 function get_registered_nav_menus() {
116 global $_wp_registered_nav_menus;
117 if ( isset( $_wp_registered_nav_menus ) )
118 return $_wp_registered_nav_menus;
123 * Returns an array with the registered navigation menu locations and the menu assigned to it
129 function get_nav_menu_locations() {
130 return get_theme_mod( 'nav_menu_locations' );
134 * Whether a registered nav menu location has a menu assigned to it.
137 * @param string $location Menu location identifier.
138 * @return bool Whether location has a menu.
140 function has_nav_menu( $location ) {
141 $locations = get_nav_menu_locations();
142 return ( ! empty( $locations[ $location ] ) );
146 * Determine whether the given ID is a nav menu item.
150 * @param int $menu_item_id The ID of the potential nav menu item.
151 * @return bool Whether the given ID is that of a nav menu item.
153 function is_nav_menu_item( $menu_item_id = 0 ) {
154 return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) );
158 * Create a Navigation Menu.
162 * @param string $menu_name Menu Name
163 * @return mixed Menu object on success|WP_Error on failure
165 function wp_create_nav_menu( $menu_name ) {
166 return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) );
170 * Delete a Navigation Menu.
174 * @param string $menu name|id|slug
175 * @return mixed Menu object on success|WP_Error on failure
177 function wp_delete_nav_menu( $menu ) {
178 $menu = wp_get_nav_menu_object( $menu );
182 $menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' );
183 if ( ! empty( $menu_objects ) ) {
184 foreach ( $menu_objects as $item ) {
185 wp_delete_post( $item );
189 $result = wp_delete_term( $menu->term_id, 'nav_menu' );
191 if ( $result && !is_wp_error($result) )
192 do_action( 'wp_delete_nav_menu', $menu->term_id );
198 * Save the properties of a menu or create a new menu with those properties.
202 * @param int $menu_id The ID of the menu or "0" to create a new menu.
203 * @param array $menu_data The array of menu data.
204 * @return int|error object The menu's ID or WP_Error object.
206 function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
207 $menu_id = (int) $menu_id;
209 $_menu = wp_get_nav_menu_object( $menu_id );
212 'description' => ( isset( $menu_data['description'] ) ? $menu_data['description'] : '' ),
213 'name' => ( isset( $menu_data['menu-name'] ) ? $menu_data['menu-name'] : '' ),
214 'parent' => ( isset( $menu_data['parent'] ) ? (int) $menu_data['parent'] : 0 ),
218 // double-check that we're not going to have one menu take the name of another
219 $_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
221 $_possible_existing &&
222 ! is_wp_error( $_possible_existing ) &&
223 isset( $_possible_existing->term_id ) &&
224 $_possible_existing->term_id != $menu_id
226 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'] ) ) );
228 // menu doesn't already exist, so create a new menu
229 if ( ! $_menu || is_wp_error( $_menu ) ) {
230 $menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
233 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'] ) ) );
235 $_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args );
237 if ( is_wp_error( $_menu ) )
240 do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data );
242 return (int) $_menu['term_id'];
245 if ( ! $_menu || ! isset( $_menu->term_id ) )
248 $menu_id = (int) $_menu->term_id;
250 $update_response = wp_update_term( $menu_id, 'nav_menu', $args );
252 if ( is_wp_error( $update_response ) )
253 return $update_response;
255 do_action( 'wp_update_nav_menu', $menu_id, $menu_data );
260 * Save the properties of a menu item or create a new one.
264 * @param int $menu_id The ID of the menu. Required. If "0", makes the menu item a draft orphan.
265 * @param int $menu_item_db_id The ID of the menu item. If "0", creates a new menu item.
266 * @param array $menu_item_data The menu item's data.
267 * @return int The menu item's database ID or WP_Error object on failure.
269 function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) {
270 $menu_id = (int) $menu_id;
271 $menu_item_db_id = (int) $menu_item_db_id;
273 // make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects
274 if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) )
275 return new WP_Error('update_nav_menu_item_failed', __('The given object ID is not that of a menu item.'));
277 $menu = wp_get_nav_menu_object( $menu_id );
279 if ( ( ! $menu && 0 !== $menu_id ) || is_wp_error( $menu ) )
282 $menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
284 $count = count( $menu_items );
287 'menu-item-db-id' => $menu_item_db_id,
288 'menu-item-object-id' => 0,
289 'menu-item-object' => '',
290 'menu-item-parent-id' => 0,
291 'menu-item-position' => 0,
292 'menu-item-type' => 'custom',
293 'menu-item-title' => '',
294 'menu-item-url' => '',
295 'menu-item-description' => '',
296 'menu-item-attr-title' => '',
297 'menu-item-target' => '',
298 'menu-item-classes' => '',
299 'menu-item-xfn' => '',
300 'menu-item-status' => '',
303 $args = wp_parse_args( $menu_item_data, $defaults );
305 if ( 0 == $menu_id ) {
306 $args['menu-item-position'] = 1;
307 } elseif ( 0 == (int) $args['menu-item-position'] ) {
308 $last_item = array_pop( $menu_items );
309 $args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : $count;
312 $original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;
314 if ( 'custom' != $args['menu-item-type'] ) {
315 /* if non-custom menu item, then:
316 * use original object's URL
317 * blank default title to sync with original object's
320 $args['menu-item-url'] = '';
322 $original_title = '';
323 if ( 'taxonomy' == $args['menu-item-type'] ) {
324 $original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
325 $original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
326 } elseif ( 'post_type' == $args['menu-item-type'] ) {
328 $original_object = get_post( $args['menu-item-object-id'] );
329 $original_parent = (int) $original_object->post_parent;
330 $original_title = $original_object->post_title;
333 if ( empty( $args['menu-item-title'] ) || $args['menu-item-title'] == $original_title ) {
334 $args['menu-item-title'] = '';
336 // hack to get wp to create a post object when too many properties are empty
337 if ( empty( $args['menu-item-description'] ) )
338 $args['menu-item-description'] = ' ';
342 // Populate the menu item object
344 'menu_order' => $args['menu-item-position'],
346 'post_content' => $args['menu-item-description'],
347 'post_excerpt' => $args['menu-item-attr-title'],
348 'post_parent' => $original_parent,
349 'post_title' => $args['menu-item-title'],
350 'post_type' => 'nav_menu_item',
354 $post['tax_input'] = array( 'nav_menu' => array( intval( $menu->term_id ) ) );
356 // New menu item. Default is draft status
357 if ( 0 == $menu_item_db_id ) {
359 $post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';
360 $menu_item_db_id = wp_insert_post( $post );
362 // Update existing menu item. Default is publish status
364 $post['ID'] = $menu_item_db_id;
365 $post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish';
366 wp_update_post( $post );
369 if ( 'custom' == $args['menu-item-type'] ) {
370 $args['menu-item-object-id'] = $menu_item_db_id;
371 $args['menu-item-object'] = 'custom';
374 if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) )
375 return $menu_item_db_id;
377 $menu_item_db_id = (int) $menu_item_db_id;
379 update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) );
380 update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', (int) $args['menu-item-parent-id'] );
381 update_post_meta( $menu_item_db_id, '_menu_item_object_id', (int) $args['menu-item-object-id'] );
382 update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) );
383 update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) );
385 $args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) );
386 $args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) );
387 update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] );
388 update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] );
389 update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) );
392 update_post_meta( $menu_item_db_id, '_menu_item_orphaned', time() );
394 delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
396 do_action('wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );
398 return $menu_item_db_id;
402 * Returns all navigation menu objects.
406 * @param array $args Array of arguments passed on to get_terms().
407 * @return array menu objects
409 function wp_get_nav_menus( $args = array() ) {
410 $defaults = array( 'hide_empty' => false, 'orderby' => 'none' );
411 $args = wp_parse_args( $args, $defaults );
412 return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu', $args), $args );
416 * Sort menu items by the desired key.
421 * @param object $a The first object to compare
422 * @param object $b The second object to compare
423 * @return int -1, 0, or 1 if $a is considered to be respectively less than, equal to, or greater than $b.
425 function _sort_nav_menu_items( $a, $b ) {
426 global $_menu_item_sort_prop;
428 if ( empty( $_menu_item_sort_prop ) )
431 if ( ! isset( $a->$_menu_item_sort_prop ) || ! isset( $b->$_menu_item_sort_prop ) )
434 $_a = (int) $a->$_menu_item_sort_prop;
435 $_b = (int) $b->$_menu_item_sort_prop;
437 if ( $a->$_menu_item_sort_prop == $b->$_menu_item_sort_prop )
439 elseif ( $_a == $a->$_menu_item_sort_prop && $_b == $b->$_menu_item_sort_prop )
440 return $_a < $_b ? -1 : 1;
442 return strcmp( $a->$_menu_item_sort_prop, $b->$_menu_item_sort_prop );
446 * Returns if a menu item is valid. Bug #13958
451 * @param object $menu_item The menu item to check
452 * @return bool false if invalid, else true.
454 function _is_valid_nav_menu_item( $item ) {
455 if ( ! empty( $item->_invalid ) )
462 * Returns all menu items of a navigation menu.
466 * @param string $menu menu name, id, or slug
467 * @param string $args
468 * @return mixed $items array of menu items, else false.
470 function wp_get_nav_menu_items( $menu, $args = array() ) {
471 global $_wp_using_ext_object_cache;
473 $menu = wp_get_nav_menu_object( $menu );
478 static $fetched = array();
480 $items = get_objects_in_term( $menu->term_id, 'nav_menu' );
482 if ( empty( $items ) )
485 $defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item',
486 'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true,
487 'update_post_term_cache' => false );
488 $args = wp_parse_args( $args, $defaults );
489 if ( count( $items ) > 1 )
490 $args['include'] = implode( ',', $items );
492 $args['include'] = $items[0];
494 $items = get_posts( $args );
496 if ( is_wp_error( $items ) || ! is_array( $items ) )
499 // Get all posts and terms at once to prime the caches
500 if ( empty( $fetched[$menu->term_id] ) || $_wp_using_ext_object_cache ) {
501 $fetched[$menu->term_id] = true;
504 foreach ( $items as $item ) {
505 $object_id = get_post_meta( $item->ID, '_menu_item_object_id', true );
506 $object = get_post_meta( $item->ID, '_menu_item_object', true );
507 $type = get_post_meta( $item->ID, '_menu_item_type', true );
509 if ( 'post_type' == $type )
510 $posts[$object][] = $object_id;
511 elseif ( 'taxonomy' == $type)
512 $terms[$object][] = $object_id;
515 if ( ! empty( $posts ) ) {
516 foreach ( array_keys($posts) as $post_type ) {
517 get_posts( array('post__in' => $posts[$post_type], 'post_type' => $post_type, 'nopaging' => true, 'update_post_term_cache' => false) );
522 if ( ! empty( $terms ) ) {
523 foreach ( array_keys($terms) as $taxonomy ) {
524 get_terms($taxonomy, array('include' => $terms[$taxonomy]) );
530 $items = array_map( 'wp_setup_nav_menu_item', $items );
532 if ( ! is_admin() ) // Remove invalid items only in frontend
533 $items = array_filter( $items, '_is_valid_nav_menu_item' );
535 if ( ARRAY_A == $args['output'] ) {
536 $GLOBALS['_menu_item_sort_prop'] = $args['output_key'];
537 usort($items, '_sort_nav_menu_items');
539 foreach( $items as $k => $item ) {
540 $items[$k]->$args['output_key'] = $i++;
544 return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args );
548 * Decorates a menu item object with the shared navigation menu item properties.
551 * - db_id: The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist).
552 * - object_id: The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories.
553 * - type: The family of objects originally represented, such as "post_type" or "taxonomy."
554 * - object: The type of object originally represented, such as "category," "post", or "attachment."
555 * - type_label: The singular label used to describe this type of menu item.
556 * - post_parent: The DB ID of the original object's parent object, if any (0 otherwise).
557 * - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise.
558 * - url: The URL to which this menu item points.
559 * - title: The title of this menu item.
560 * - target: The target attribute of the link element for this menu item.
561 * - attr_title: The title attribute of the link element for this menu item.
562 * - classes: The array of class attribute values for the link element of this menu item.
563 * - xfn: The XFN relationship expressed in the link of this menu item.
564 * - description: The description of this menu item.
568 * @param object $menu_item The menu item to modify.
569 * @return object $menu_item The menu item with standard menu item properties.
571 function wp_setup_nav_menu_item( $menu_item ) {
572 if ( isset( $menu_item->post_type ) ) {
573 if ( 'nav_menu_item' == $menu_item->post_type ) {
574 $menu_item->db_id = (int) $menu_item->ID;
575 $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;
576 $menu_item->object_id = empty( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id;
577 $menu_item->object = empty( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object;
578 $menu_item->type = empty( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type;
580 if ( 'post_type' == $menu_item->type ) {
581 $object = get_post_type_object( $menu_item->object );
583 $menu_item->type_label = $object->labels->singular_name;
585 $menu_item->type_label = $menu_item->object;
586 $menu_item->_invalid = true;
589 $menu_item->url = get_permalink( $menu_item->object_id );
591 $original_object = get_post( $menu_item->object_id );
592 $original_title = $original_object->post_title;
593 $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
595 } elseif ( 'taxonomy' == $menu_item->type ) {
596 $object = get_taxonomy( $menu_item->object );
598 $menu_item->type_label = $object->labels->singular_name;
600 $menu_item->type_label = $menu_item->object;
601 $menu_item->_invalid = true;
604 $term_url = get_term_link( (int) $menu_item->object_id, $menu_item->object );
605 $menu_item->url = !is_wp_error( $term_url ) ? $term_url : '';
607 $original_title = get_term_field( 'name', $menu_item->object_id, $menu_item->object, 'raw' );
608 if ( is_wp_error( $original_title ) )
609 $original_title = false;
610 $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
613 $menu_item->type_label = __('Custom');
614 $menu_item->title = $menu_item->post_title;
615 $menu_item->url = empty( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url;
618 $menu_item->target = empty( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target;
620 $menu_item->attr_title = empty( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title;
622 if ( empty( $menu_item->description ) )
623 $menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) );
625 $menu_item->classes = empty( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;
626 $menu_item->xfn = empty( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn;
628 $menu_item->db_id = 0;
629 $menu_item->menu_item_parent = 0;
630 $menu_item->object_id = (int) $menu_item->ID;
631 $menu_item->type = 'post_type';
633 $object = get_post_type_object( $menu_item->post_type );
634 $menu_item->object = $object->name;
635 $menu_item->type_label = $object->labels->singular_name;
637 $menu_item->title = $menu_item->post_title;
638 $menu_item->url = get_permalink( $menu_item->ID );
639 $menu_item->target = '';
641 $menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' );
642 $menu_item->description = apply_filters( 'nav_menu_description', '' );
643 $menu_item->classes = array();
644 $menu_item->xfn = '';
646 } elseif ( isset( $menu_item->taxonomy ) ) {
647 $menu_item->ID = $menu_item->term_id;
648 $menu_item->db_id = 0;
649 $menu_item->menu_item_parent = 0;
650 $menu_item->object_id = (int) $menu_item->term_id;
651 $menu_item->post_parent = (int) $menu_item->parent;
652 $menu_item->type = 'taxonomy';
654 $object = get_taxonomy( $menu_item->taxonomy );
655 $menu_item->object = $object->name;
656 $menu_item->type_label = $object->labels->singular_name;
658 $menu_item->title = $menu_item->name;
659 $menu_item->url = get_term_link( $menu_item, $menu_item->taxonomy );
660 $menu_item->target = '';
661 $menu_item->attr_title = '';
662 $menu_item->description = get_term_field( 'description', $menu_item->term_id, $menu_item->taxonomy );
663 $menu_item->classes = array();
664 $menu_item->xfn = '';
668 return apply_filters( 'wp_setup_nav_menu_item', $menu_item );
672 * Get the menu items associated with a particular object.
676 * @param int $object_id The ID of the original object.
677 * @param string $object_type The type of object, such as "taxonomy" or "post_type."
678 * @return array The array of menu item IDs; empty array if none;
680 function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type' ) {
681 $object_id = (int) $object_id;
682 $menu_item_ids = array();
684 $query = new WP_Query;
685 $menu_items = $query->query(
687 'meta_key' => '_menu_item_object_id',
688 'meta_value' => $object_id,
689 'post_status' => 'any',
690 'post_type' => 'nav_menu_item',
691 'posts_per_page' => -1,
694 foreach( (array) $menu_items as $menu_item ) {
695 if ( isset( $menu_item->ID ) && is_nav_menu_item( $menu_item->ID ) ) {
696 if ( get_post_meta( $menu_item->ID, '_menu_item_type', true ) != $object_type )
699 $menu_item_ids[] = (int) $menu_item->ID;
703 return array_unique( $menu_item_ids );
707 * Callback for handling a menu item when its original object is deleted.
712 * @param int $object_id The ID of the original object being trashed.
715 function _wp_delete_post_menu_item( $object_id = 0 ) {
716 $object_id = (int) $object_id;
718 $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'post_type' );
720 foreach( (array) $menu_item_ids as $menu_item_id ) {
721 wp_delete_post( $menu_item_id, true );
726 * Callback for handling a menu item when its original object is deleted.
731 * @param int $object_id The ID of the original object being trashed.
734 function _wp_delete_tax_menu_item( $object_id = 0 ) {
735 $object_id = (int) $object_id;
737 $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy' );
739 foreach( (array) $menu_item_ids as $menu_item_id ) {
740 wp_delete_post( $menu_item_id, true );
745 * Automatically add newly published page objects to menus with that as an option.
750 * @param string $new_status The new status of the post object.
751 * @param string $old_status The old status of the post object.
752 * @param object $post The post object being transitioned from one status to another.
755 function _wp_auto_add_pages_to_menu( $new_status, $old_status, $post ) {
756 if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type )
758 if ( ! empty( $post->post_parent ) )
760 $auto_add = get_option( 'nav_menu_options' );
761 if ( empty( $auto_add ) || ! is_array( $auto_add ) || ! isset( $auto_add['auto_add'] ) )
763 $auto_add = $auto_add['auto_add'];
764 if ( empty( $auto_add ) || ! is_array( $auto_add ) )
768 'menu-item-object-id' => $post->ID,
769 'menu-item-object' => $post->post_type,
770 'menu-item-type' => 'post_type',
771 'menu-item-status' => 'publish',
774 foreach ( $auto_add as $menu_id ) {
775 $items = wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
776 if ( ! is_array( $items ) )
778 foreach ( $items as $item ) {
779 if ( $post->ID == $item->object_id )
782 wp_update_nav_menu_item( $menu_id, 0, $args );