*
* @since 3.0.0
*
- * @uses get_term
- * @uses get_term_by
- *
- * @param string $menu Menu id, slug or name
+ * @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 ) {
*
* @since 3.0.0
*
- * @param int|string $menu The menu to check (id, slug, or name)
+ * @param int|string $menu The menu to check (ID, slug, or name).
* @return bool Whether the menu exists.
*/
function is_nav_menu( $menu ) {
/**
* Unregisters a navigation menu for a theme.
*
- * @param array $location the menu location identifier
- *
+ * @param string $location The menu location identifier.
* @return bool True on success, false on failure.
*/
function unregister_nav_menu( $location ) {
if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) {
unset( $_wp_registered_nav_menus[$location] );
+ if ( empty( $_wp_registered_nav_menus ) ) {
+ _remove_theme_support( 'menus' );
+ }
return true;
}
return false;
*/
function get_nav_menu_locations() {
- return get_theme_mod( 'nav_menu_locations' );
+ $locations = get_theme_mod( 'nav_menu_locations' );
+ return ( is_array( $locations ) ) ? $locations : array();
}
/**
* @return bool Whether location has a menu.
*/
function has_nav_menu( $location ) {
+ $registered_nav_menus = get_registered_nav_menus();
+ if ( ! isset( $registered_nav_menus[ $location ] ) ) {
+ return false;
+ }
+
$locations = get_nav_menu_locations();
return ( ! empty( $locations[ $location ] ) );
}
*
* @since 3.0.0
*
- * @param string $menu_name Menu Name
- * @return mixed Menu object on success|WP_Error on failure
+ * @param string $menu_name Menu name.
+ * @return int|WP_Error Menu ID on success, WP_Error object on failure.
*/
function wp_create_nav_menu( $menu_name ) {
return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) );
*
* @since 3.0.0
*
- * @param string $menu name|id|slug
- * @return mixed Menu object on success|WP_Error on failure
+ * @param string $menu Menu ID, slug, or name.
+ * @return bool|WP_Error True on success, false or WP_Error object on failure.
*/
function wp_delete_nav_menu( $menu ) {
$menu = wp_get_nav_menu_object( $menu );
$result = wp_delete_term( $menu->term_id, 'nav_menu' );
+ // Remove this menu from any locations.
+ $locations = get_nav_menu_locations();
+ foreach ( $locations as $location => $menu_id ) {
+ if ( $menu_id == $menu->term_id )
+ $locations[ $location ] = 0;
+ }
+ set_theme_mod( 'nav_menu_locations', $locations );
+
if ( $result && !is_wp_error($result) )
+
+ /**
+ * Fires after a navigation menu has been successfully deleted.
+ *
+ * @since 3.0.0
+ *
+ * @param int $term_id ID of the deleted menu.
+ */
do_action( 'wp_delete_nav_menu', $menu->term_id );
return $result;
*
* @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.
+ * @return int|WP_Error Menu ID on success, WP_Error object on failure.
*/
function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
$menu_id = (int) $menu_id;
if ( is_wp_error( $_menu ) )
return $_menu;
+ /**
+ * Fires after a navigation menu is successfully created.
+ *
+ * @since 3.0.0
+ *
+ * @param int $term_id ID of the new menu.
+ * @param array $menu_data An array of menu data.
+ */
do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data );
return (int) $_menu['term_id'];
if ( is_wp_error( $update_response ) )
return $update_response;
+ /**
+ * Fires after a navigation menu has been successfully updated.
+ *
+ * @since 3.0.0
+ *
+ * @param int $menu_id ID of the updated menu.
+ * @param array $menu_data An array of menu data.
+ */
do_action( 'wp_update_nav_menu', $menu_id, $menu_data );
return $menu_id;
}
* @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.
+ * @return int|WP_Error 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;
// 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.'));
+ 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' ) );
+ if ( ! $menu && 0 !== $menu_id ) {
+ return new WP_Error( 'invalid_menu_id', __( 'Invalid menu ID.' ) );
+ }
- $count = count( $menu_items );
+ if ( is_wp_error( $menu ) ) {
+ return $menu;
+ }
$defaults = array(
'menu-item-db-id' => $menu_item_db_id,
if ( 0 == $menu_id ) {
$args['menu-item-position'] = 1;
} elseif ( 0 == (int) $args['menu-item-position'] ) {
+ $menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
$last_item = array_pop( $menu_items );
- $args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : $count;
+ $args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : count( $menu_items );
}
$original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;
$original_title = $original_object->post_title;
}
- if ( empty( $args['menu-item-title'] ) || $args['menu-item-title'] == $original_title ) {
+ if ( $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'] = ' ';
- }
+ // hack to get wp to create a post object when too many properties are empty
+ if ( '' == $args['menu-item-title'] && '' == $args['menu-item-description'] )
+ $args['menu-item-description'] = ' ';
}
// Populate the menu item object
'post_type' => 'nav_menu_item',
);
- if ( 0 != $menu_id )
- $post['tax_input'] = array( 'nav_menu' => array( intval( $menu->term_id ) ) );
+ $update = 0 != $menu_item_db_id;
// New menu item. Default is draft status
- if ( 0 == $menu_item_db_id ) {
+ if ( ! $update ) {
$post['ID'] = 0;
$post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';
$menu_item_db_id = wp_insert_post( $post );
+ if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) )
+ return $menu_item_db_id;
+ }
- // 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 );
+ // Associate the menu item with the menu term
+ // Only set the menu term if it isn't set to avoid unnecessary wp_get_object_terms()
+ if ( $menu_id && ( ! $update || ! is_object_in_term( $menu_item_db_id, 'nav_menu', (int) $menu->term_id ) ) ) {
+ wp_set_object_terms( $menu_item_db_id, array( $menu->term_id ), 'nav_menu' );
}
if ( 'custom' == $args['menu-item-type'] ) {
$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_menu_item_parent', strval( (int) $args['menu-item-parent-id'] ) );
+ update_post_meta( $menu_item_db_id, '_menu_item_object_id', strval( (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']) );
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
+ update_post_meta( $menu_item_db_id, '_menu_item_orphaned', (string) time() );
+ elseif ( get_post_meta( $menu_item_db_id, '_menu_item_orphaned' ) )
delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
- do_action('wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );
+ // Update existing menu item. Default is publish status
+ if ( $update ) {
+ $post['ID'] = $menu_item_db_id;
+ $post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish';
+ wp_update_post( $post );
+ }
+
+ /**
+ * Fires after a navigation menu item has been updated.
+ *
+ * @since 3.0.0
+ *
+ * @see wp_update_nav_menu_items()
+ *
+ * @param int $menu_id ID of the updated menu.
+ * @param int $menu_item_db_id ID of the updated menu item.
+ * @param array $args An array of arguments used to update a menu item.
+ */
+ 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
+ * @since 4.1.0 Default value of the 'orderby' argument was changed from 'none'
+ * to 'name'.
*
- * @param $args array Array of arguments passed on to get_terms().
- * @return array menu objects
+ * @param array $args Optional. Array of arguments passed on to {@see get_terms()}.
+ * Default empty array.
+ * @return array Menu objects.
*/
function wp_get_nav_menus( $args = array() ) {
- $defaults = array( 'hide_empty' => false, 'orderby' => 'none' );
+ $defaults = array( 'hide_empty' => false, 'orderby' => 'name' );
$args = wp_parse_args( $args, $defaults );
+
+ /**
+ * Filter the navigation menu objects being returned.
+ *
+ * @since 3.0.0
+ *
+ * @see get_terms()
+ *
+ * @param array $menus An array of menu objects.
+ * @param array $args An array of arguments used to retrieve menu objects.
+ */
return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu', $args), $args );
}
}
/**
- * Returns all menu items of a navigation menu.
+ * Return if a menu item is valid.
+ *
+ * @link https://core.trac.wordpress.org/ticket/13958
+ *
+ * @since 3.2.0
+ * @access private
+ *
+ * @param object $item The menu item to check.
+ * @return bool False if invalid, otherwise true.
+ */
+function _is_valid_nav_menu_item( $item ) {
+ if ( ! empty( $item->_invalid ) )
+ return false;
+
+ return true;
+}
+
+/**
+ * Return 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.
+ * @param string $menu Menu name, ID, or slug.
+ * @param array $args Optional. Arguments to pass to {@see get_posts()}.
+ * @return mixed $items Array of menu items, otherwise 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 $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 );
+ 'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true );
$args = wp_parse_args( $args, $defaults );
- if ( count( $items ) > 1 )
- $args['include'] = implode( ',', $items );
- else
- $args['include'] = $items[0];
+ $args['include'] = $items;
$items = get_posts( $args );
return false;
// Get all posts and terms at once to prime the caches
- if ( empty( $fetched[$menu->term_id] ) || $_wp_using_ext_object_cache ) {
+ if ( empty( $fetched[$menu->term_id] ) || wp_using_ext_object_cache() ) {
$fetched[$menu->term_id] = true;
$posts = array();
$terms = 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');
}
}
+ /**
+ * Filter the navigation menu items being returned.
+ *
+ * @since 3.0.0
+ *
+ * @param array $items An array of menu item post objects.
+ * @param object $menu The menu object.
+ * @param array $args An array of arguments used to retrieve menu item objects.
+ */
return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args );
}
* - 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.
+ * - 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.
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 );
$original_title = $original_object->post_title;
+
+ if ( '' === $original_title ) {
+ $original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
+ }
+
$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
} 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 {
$menu_item->target = empty( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target;
+ /**
+ * Filter a navigation menu item's title attribute.
+ *
+ * @since 3.0.0
+ *
+ * @param string $item_title The menu item title attribute.
+ */
$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 ) ) {
+ /**
+ * Filter a navigation menu item's description.
+ *
+ * @since 3.0.0
+ *
+ * @param string $description The 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;
$menu_item->object = $object->name;
$menu_item->type_label = $object->labels->singular_name;
+ if ( '' === $menu_item->post_title )
+ $menu_item->post_title = sprintf( __( '#%d (no title)' ), $menu_item->ID );
+
$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->post_excerpt );
- $menu_item->description = apply_filters( 'nav_menu_description', $menu_item->post_content );
+ /** This filter is documented in wp-includes/nav-menu.php */
+ $menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' );
+
+ /** This filter is documented in wp-includes/nav-menu.php */
+ $menu_item->description = apply_filters( 'nav_menu_description', '' );
$menu_item->classes = array();
$menu_item->xfn = '';
}
}
+ /**
+ * Filter a navigation menu item object.
+ *
+ * @since 3.0.0
+ *
+ * @param object $menu_item The menu item object.
+ */
return apply_filters( 'wp_setup_nav_menu_item', $menu_item );
}
*
* @param int $object_id The ID of the original object.
* @param string $object_type The type of object, such as "taxonomy" or "post_type."
+ * @param string $taxonomy If $object_type is "taxonomy", $taxonomy is the name of the tax that $object_id belongs to
* @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' ) {
+function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type', $taxonomy = '' ) {
$object_id = (int) $object_id;
$menu_item_ids = array();
'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 ) {
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;
+ $menu_item_type = get_post_meta( $menu_item->ID, '_menu_item_type', true );
+ if (
+ 'post_type' == $object_type &&
+ 'post_type' == $menu_item_type
+ ) {
+ $menu_item_ids[] = (int) $menu_item->ID;
+ } else if (
+ 'taxonomy' == $object_type &&
+ 'taxonomy' == $menu_item_type &&
+ get_post_meta( $menu_item->ID, '_menu_item_object', true ) == $taxonomy
+ ) {
+ $menu_item_ids[] = (int) $menu_item->ID;
+ }
}
}
* @param int $object_id The ID of the original object being trashed.
*
*/
-function _wp_delete_tax_menu_item( $object_id = 0 ) {
+function _wp_delete_tax_menu_item( $object_id = 0, $tt_id, $taxonomy ) {
$object_id = (int) $object_id;
- $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy' );
+ $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy', $taxonomy );
foreach( (array) $menu_item_ids as $menu_item_id ) {
wp_delete_post( $menu_item_id, true );
wp_update_nav_menu_item( $menu_id, 0, $args );
}
}
-
-?>