1005 lines
32 KiB
PHP
1005 lines
32 KiB
PHP
<?php
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/**
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* Navigation Menu functions
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*
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* @package WordPress
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* @subpackage Nav_Menus
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* @since 3.0.0
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*/
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/**
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* Returns a navigation menu object.
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*
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* @since 3.0.0
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*
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* @param string $menu Menu ID, slug, or name - or the menu object.
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* @return object|false False if $menu param isn't supplied or term does not exist, menu object if successful.
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*/
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function wp_get_nav_menu_object( $menu ) {
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$menu_obj = false;
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if ( is_object( $menu ) ) {
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$menu_obj = $menu;
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}
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if ( $menu && ! $menu_obj ) {
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$menu_obj = get_term( $menu, 'nav_menu' );
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if ( ! $menu_obj ) {
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$menu_obj = get_term_by( 'slug', $menu, 'nav_menu' );
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}
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if ( ! $menu_obj ) {
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$menu_obj = get_term_by( 'name', $menu, 'nav_menu' );
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}
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}
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if ( ! $menu_obj || is_wp_error( $menu_obj ) ) {
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$menu_obj = false;
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}
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/**
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* Filter the nav_menu term retrieved for wp_get_nav_menu_object().
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*
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* @since 4.3.0
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*
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* @param object|false $menu_obj Term from nav_menu taxonomy, or false if nothing had been found.
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* @param string $menu The menu ID, slug, or name passed to wp_get_nav_menu_object().
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*/
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return apply_filters( 'wp_get_nav_menu_object', $menu_obj, $menu );
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}
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/**
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* Check if the given ID is a navigation menu.
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*
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* Returns true if it is; false otherwise.
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*
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* @since 3.0.0
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*
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* @param int|string $menu The menu to check (ID, slug, or name).
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* @return bool Whether the menu exists.
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*/
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function is_nav_menu( $menu ) {
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if ( ! $menu )
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return false;
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$menu_obj = wp_get_nav_menu_object( $menu );
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if (
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$menu_obj &&
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! is_wp_error( $menu_obj ) &&
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! empty( $menu_obj->taxonomy ) &&
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'nav_menu' == $menu_obj->taxonomy
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)
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return true;
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return false;
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}
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/**
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* Registers navigation menu locations for a theme.
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*
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* @since 3.0.0
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*
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* @global array $_wp_registered_nav_menus
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*
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* @param array $locations Associative array of menu location identifiers (like a slug) and descriptive text.
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*/
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function register_nav_menus( $locations = array() ) {
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global $_wp_registered_nav_menus;
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add_theme_support( 'menus' );
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$_wp_registered_nav_menus = array_merge( (array) $_wp_registered_nav_menus, $locations );
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}
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/**
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* Unregisters a navigation menu location for a theme.
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*
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* @global array $_wp_registered_nav_menus
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*
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* @param string $location The menu location identifier.
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* @return bool True on success, false on failure.
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*/
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function unregister_nav_menu( $location ) {
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global $_wp_registered_nav_menus;
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if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) {
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unset( $_wp_registered_nav_menus[$location] );
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if ( empty( $_wp_registered_nav_menus ) ) {
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_remove_theme_support( 'menus' );
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}
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return true;
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}
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return false;
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}
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/**
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* Registers a navigation menu location for a theme.
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*
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* @since 3.0.0
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*
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* @param string $location Menu location identifier, like a slug.
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* @param string $description Menu location descriptive text.
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*/
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function register_nav_menu( $location, $description ) {
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register_nav_menus( array( $location => $description ) );
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}
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/**
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* Returns all registered navigation menu locations in a theme.
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*
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* @since 3.0.0
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*
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* @global array $_wp_registered_nav_menus
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*
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* @return array
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*/
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function get_registered_nav_menus() {
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global $_wp_registered_nav_menus;
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if ( isset( $_wp_registered_nav_menus ) )
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return $_wp_registered_nav_menus;
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return array();
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}
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/**
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* Returns an array with the registered navigation menu locations and the menu assigned to it
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*
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* @since 3.0.0
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* @return array
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*/
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function get_nav_menu_locations() {
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$locations = get_theme_mod( 'nav_menu_locations' );
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return ( is_array( $locations ) ) ? $locations : array();
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}
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/**
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* Determines whether a registered nav menu location has a menu assigned to it.
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*
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* @since 3.0.0
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*
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* @param string $location Menu location identifier.
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* @return bool Whether location has a menu.
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*/
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function has_nav_menu( $location ) {
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$has_nav_menu = false;
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$registered_nav_menus = get_registered_nav_menus();
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if ( isset( $registered_nav_menus[ $location ] ) ) {
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$locations = get_nav_menu_locations();
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$has_nav_menu = ! empty( $locations[ $location ] );
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}
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/**
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* Filter whether a nav menu is assigned to the specified location.
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*
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* @since 4.3.0
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*
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* @param bool $has_nav_menu Whether there is a menu assigned to a location.
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* @param string $location Menu location.
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*/
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return apply_filters( 'has_nav_menu', $has_nav_menu, $location );
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}
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/**
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* Determines whether the given ID is a nav menu item.
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*
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* @since 3.0.0
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*
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* @param int $menu_item_id The ID of the potential nav menu item.
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* @return bool Whether the given ID is that of a nav menu item.
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*/
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function is_nav_menu_item( $menu_item_id = 0 ) {
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return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) );
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}
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/**
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* Creates a navigation menu.
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*
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* Note that `$menu_name` is expected to be pre-slashed.
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*
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* @since 3.0.0
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*
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* @param string $menu_name Menu name.
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* @return int|WP_Error Menu ID on success, WP_Error object on failure.
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*/
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function wp_create_nav_menu( $menu_name ) {
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// expected_slashed ($menu_name)
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return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) );
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}
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/**
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* Delete a Navigation Menu.
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*
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* @since 3.0.0
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*
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* @param string $menu Menu ID, slug, or name.
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* @return bool|WP_Error True on success, false or WP_Error object on failure.
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*/
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function wp_delete_nav_menu( $menu ) {
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$menu = wp_get_nav_menu_object( $menu );
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if ( ! $menu )
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return false;
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$menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' );
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if ( ! empty( $menu_objects ) ) {
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foreach ( $menu_objects as $item ) {
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wp_delete_post( $item );
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}
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}
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$result = wp_delete_term( $menu->term_id, 'nav_menu' );
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// Remove this menu from any locations.
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$locations = get_nav_menu_locations();
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foreach ( $locations as $location => $menu_id ) {
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if ( $menu_id == $menu->term_id )
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$locations[ $location ] = 0;
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}
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set_theme_mod( 'nav_menu_locations', $locations );
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if ( $result && !is_wp_error($result) )
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/**
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* Fires after a navigation menu has been successfully deleted.
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*
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* @since 3.0.0
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*
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* @param int $term_id ID of the deleted menu.
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*/
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do_action( 'wp_delete_nav_menu', $menu->term_id );
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return $result;
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}
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/**
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* Save the properties of a menu or create a new menu with those properties.
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*
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* Note that `$menu_data` is expected to be pre-slashed.
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*
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* @since 3.0.0
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*
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* @param int $menu_id The ID of the menu or "0" to create a new menu.
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* @param array $menu_data The array of menu data.
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* @return int|WP_Error Menu ID on success, WP_Error object on failure.
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*/
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function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
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// expected_slashed ($menu_data)
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$menu_id = (int) $menu_id;
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$_menu = wp_get_nav_menu_object( $menu_id );
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$args = array(
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'description' => ( isset( $menu_data['description'] ) ? $menu_data['description'] : '' ),
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'name' => ( isset( $menu_data['menu-name'] ) ? $menu_data['menu-name'] : '' ),
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'parent' => ( isset( $menu_data['parent'] ) ? (int) $menu_data['parent'] : 0 ),
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'slug' => null,
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);
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// double-check that we're not going to have one menu take the name of another
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$_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
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if (
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$_possible_existing &&
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! is_wp_error( $_possible_existing ) &&
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isset( $_possible_existing->term_id ) &&
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$_possible_existing->term_id != $menu_id
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) {
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return new WP_Error( 'menu_exists',
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/* translators: %s: menu name */
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sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
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'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
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)
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);
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}
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// menu doesn't already exist, so create a new menu
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if ( ! $_menu || is_wp_error( $_menu ) ) {
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$menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
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if ( $menu_exists ) {
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return new WP_Error( 'menu_exists',
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/* translators: %s: menu name */
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sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
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'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
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)
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);
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}
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$_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args );
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if ( is_wp_error( $_menu ) )
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return $_menu;
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/**
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* Fires after a navigation menu is successfully created.
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*
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* @since 3.0.0
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*
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* @param int $term_id ID of the new menu.
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* @param array $menu_data An array of menu data.
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*/
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do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data );
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return (int) $_menu['term_id'];
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}
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if ( ! $_menu || ! isset( $_menu->term_id ) )
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return 0;
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$menu_id = (int) $_menu->term_id;
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$update_response = wp_update_term( $menu_id, 'nav_menu', $args );
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if ( is_wp_error( $update_response ) )
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return $update_response;
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$menu_id = (int) $update_response['term_id'];
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/**
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* Fires after a navigation menu has been successfully updated.
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*
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* @since 3.0.0
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*
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* @param int $menu_id ID of the updated menu.
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* @param array $menu_data An array of menu data.
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*/
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do_action( 'wp_update_nav_menu', $menu_id, $menu_data );
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return $menu_id;
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}
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/**
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* Save the properties of a menu item or create a new one.
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*
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* The menu-item-title, menu-item-description, and menu-item-attr-title are expected
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* to be pre-slashed since they are passed directly into `wp_insert_post()`.
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*
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* @since 3.0.0
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*
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* @param int $menu_id The ID of the menu. Required. If "0", makes the menu item a draft orphan.
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* @param int $menu_item_db_id The ID of the menu item. If "0", creates a new menu item.
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* @param array $menu_item_data The menu item's data.
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* @return int|WP_Error The menu item's database ID or WP_Error object on failure.
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*/
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function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) {
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$menu_id = (int) $menu_id;
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$menu_item_db_id = (int) $menu_item_db_id;
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// make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects
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if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) )
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return new WP_Error( 'update_nav_menu_item_failed', __( 'The given object ID is not that of a menu item.' ) );
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$menu = wp_get_nav_menu_object( $menu_id );
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if ( ! $menu && 0 !== $menu_id ) {
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return new WP_Error( 'invalid_menu_id', __( 'Invalid menu ID.' ) );
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}
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if ( is_wp_error( $menu ) ) {
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return $menu;
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}
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$defaults = array(
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'menu-item-db-id' => $menu_item_db_id,
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'menu-item-object-id' => 0,
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'menu-item-object' => '',
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'menu-item-parent-id' => 0,
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'menu-item-position' => 0,
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'menu-item-type' => 'custom',
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'menu-item-title' => '',
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'menu-item-url' => '',
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'menu-item-description' => '',
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'menu-item-attr-title' => '',
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'menu-item-target' => '',
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'menu-item-classes' => '',
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'menu-item-xfn' => '',
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'menu-item-status' => '',
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);
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$args = wp_parse_args( $menu_item_data, $defaults );
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if ( 0 == $menu_id ) {
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$args['menu-item-position'] = 1;
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} elseif ( 0 == (int) $args['menu-item-position'] ) {
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$menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
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$last_item = array_pop( $menu_items );
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$args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : count( $menu_items );
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}
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$original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;
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if ( 'custom' != $args['menu-item-type'] ) {
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/* if non-custom menu item, then:
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* use original object's URL
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* blank default title to sync with original object's
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*/
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$args['menu-item-url'] = '';
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$original_title = '';
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if ( 'taxonomy' == $args['menu-item-type'] ) {
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$original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
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$original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
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} elseif ( 'post_type' == $args['menu-item-type'] ) {
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$original_object = get_post( $args['menu-item-object-id'] );
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$original_parent = (int) $original_object->post_parent;
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$original_title = $original_object->post_title;
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} elseif ( 'post_type_archive' == $args['menu-item-type'] ) {
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$original_object = get_post_type_object( $args['menu-item-object'] );
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if ( $original_object ) {
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$original_title = $original_object->labels->archives;
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}
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}
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if ( $args['menu-item-title'] == $original_title )
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$args['menu-item-title'] = '';
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// hack to get wp to create a post object when too many properties are empty
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if ( '' == $args['menu-item-title'] && '' == $args['menu-item-description'] )
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$args['menu-item-description'] = ' ';
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}
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// Populate the menu item object
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$post = array(
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'menu_order' => $args['menu-item-position'],
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'ping_status' => 0,
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'post_content' => $args['menu-item-description'],
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'post_excerpt' => $args['menu-item-attr-title'],
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'post_parent' => $original_parent,
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'post_title' => $args['menu-item-title'],
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'post_type' => 'nav_menu_item',
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);
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$update = 0 != $menu_item_db_id;
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// New menu item. Default is draft status
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if ( ! $update ) {
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$post['ID'] = 0;
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$post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';
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$menu_item_db_id = wp_insert_post( $post );
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if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) )
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return $menu_item_db_id;
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/**
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* Fires immediately after a new navigation menu item has been added.
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*
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* @since 4.4.0
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*
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* @see wp_update_nav_menu_item()
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*
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* @param int $menu_id ID of the updated menu.
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* @param int $menu_item_db_id ID of the new menu item.
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* @param array $args An array of arguments used to update/add the menu item.
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*/
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do_action( 'wp_add_nav_menu_item', $menu_id, $menu_item_db_id, $args );
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}
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// Associate the menu item with the menu term
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// Only set the menu term if it isn't set to avoid unnecessary wp_get_object_terms()
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if ( $menu_id && ( ! $update || ! is_object_in_term( $menu_item_db_id, 'nav_menu', (int) $menu->term_id ) ) ) {
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wp_set_object_terms( $menu_item_db_id, array( $menu->term_id ), 'nav_menu' );
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}
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if ( 'custom' == $args['menu-item-type'] ) {
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$args['menu-item-object-id'] = $menu_item_db_id;
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$args['menu-item-object'] = 'custom';
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}
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|
|
$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', 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']) );
|
|
|
|
$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', (string) time() );
|
|
elseif ( get_post_meta( $menu_item_db_id, '_menu_item_orphaned' ) )
|
|
delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
|
|
|
|
// 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_item()
|
|
*
|
|
* @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 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' => '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 );
|
|
}
|
|
|
|
/**
|
|
* Sort menu items by the desired key.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @global string $_menu_item_sort_prop
|
|
*
|
|
* @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 );
|
|
}
|
|
|
|
/**
|
|
* 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 ) {
|
|
return empty( $item->_invalid );
|
|
}
|
|
|
|
/**
|
|
* Return all menu items of a navigation menu.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global string $_menu_item_sort_prop
|
|
* @staticvar array $fetched
|
|
*
|
|
* @param string $menu Menu name, ID, or slug.
|
|
* @param array $args Optional. Arguments to pass to {@see get_posts()}.
|
|
* @return false|array $items Array of menu items, otherwise false.
|
|
*/
|
|
function wp_get_nav_menu_items( $menu, $args = array() ) {
|
|
$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 ( is_wp_error( $items ) ) {
|
|
return false;
|
|
}
|
|
|
|
$defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item',
|
|
'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true );
|
|
$args = wp_parse_args( $args, $defaults );
|
|
$args['include'] = $items;
|
|
|
|
if ( ! empty( $items ) ) {
|
|
$items = get_posts( $args );
|
|
} else {
|
|
$items = array();
|
|
}
|
|
|
|
// 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[ $taxonomy ],
|
|
'hierarchical' => false,
|
|
) );
|
|
}
|
|
}
|
|
unset($terms);
|
|
}
|
|
|
|
$items = array_map( 'wp_setup_nav_menu_item', $items );
|
|
|
|
if ( ! is_admin() ) { // Remove invalid items only in front end
|
|
$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++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* Decorates a menu item object with the shared navigation menu item properties.
|
|
*
|
|
* Properties:
|
|
* - ID: The term_id if the menu item represents a taxonomy term.
|
|
* - 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.
|
|
* - db_id: The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist).
|
|
* - description: The description of this menu item.
|
|
* - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise.
|
|
* - object: The type of object originally represented, such as "category," "post", or "attachment."
|
|
* - object_id: The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories.
|
|
* - post_parent: The DB ID of the original object's parent object, if any (0 otherwise).
|
|
* - post_title: A "no title" label if menu item represents a post that lacks a title.
|
|
* - target: The target attribute of the link element for this menu item.
|
|
* - title: The title of this menu item.
|
|
* - type: The family of objects originally represented, such as "post_type" or "taxonomy."
|
|
* - type_label: The singular label used to describe this type of menu item.
|
|
* - url: The URL to which this menu item points.
|
|
* - xfn: The XFN relationship expressed in the link of this menu item.
|
|
* - _invalid: Whether the menu item represents an object that no longer exists.
|
|
*
|
|
* @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 = ! isset( $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 = ! isset( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id;
|
|
$menu_item->object = ! isset( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object;
|
|
$menu_item->type = ! isset( $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 );
|
|
/** This filter is documented in wp-includes/post-template.php */
|
|
$original_title = apply_filters( 'the_title', $original_object->post_title, $original_object->ID );
|
|
|
|
if ( '' === $original_title ) {
|
|
/* translators: %d: ID of a post */
|
|
$original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
|
|
}
|
|
|
|
$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
|
|
|
|
} elseif ( 'post_type_archive' == $menu_item->type ) {
|
|
$object = get_post_type_object( $menu_item->object );
|
|
if ( $object ) {
|
|
$menu_item->title = '' == $menu_item->post_title ? $object->labels->archives : $menu_item->post_title;
|
|
$post_type_description = $object->description;
|
|
} else {
|
|
$menu_item->_invalid = true;
|
|
$post_type_description = '';
|
|
}
|
|
|
|
$menu_item->type_label = __( 'Post Type Archive' );
|
|
$post_content = wp_trim_words( $menu_item->post_content, 200 );
|
|
$post_type_description = '' == $post_content ? $post_type_description : $post_content;
|
|
$menu_item->url = get_post_type_archive_link( $menu_item->object );
|
|
} 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 Link');
|
|
$menu_item->title = $menu_item->post_title;
|
|
$menu_item->url = ! isset( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url;
|
|
}
|
|
|
|
$menu_item->target = ! isset( $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 = ! isset( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title;
|
|
|
|
if ( ! isset( $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 = ! isset( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;
|
|
$menu_item->xfn = ! isset( $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;
|
|
|
|
if ( '' === $menu_item->post_title ) {
|
|
/* translators: %d: ID of a post */
|
|
$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 = '';
|
|
|
|
/** 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 = '';
|
|
}
|
|
} 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 = '';
|
|
|
|
}
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* 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."
|
|
* @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', $taxonomy = '' ) {
|
|
$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 ) ) {
|
|
$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;
|
|
} elseif (
|
|
'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;
|
|
}
|
|
}
|
|
}
|
|
|
|
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 );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Serves as a callback for handling a menu item when its original object is deleted.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @param int $object_id Optional. The ID of the original object being trashed. Default 0.
|
|
* @param int $tt_id Term taxonomy ID. Unused.
|
|
* @param string $taxonomy Taxonomy slug.
|
|
*/
|
|
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', $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.
|
|
*/
|
|
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 );
|
|
}
|
|
}
|