wp_update_nav_menu_item

Source code

function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) {

	$menu_id = (int) $menu_id;

	$menu_item_db_id = (int) $menu_item_db_id;



	// make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects

	if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) )

		return new WP_Error('update_nav_menu_item_failed', __('The given object ID is not that of a menu item.'));



	$menu = wp_get_nav_menu_object( $menu_id );



	if ( ( ! $menu && 0 !== $menu_id ) || is_wp_error( $menu ) )

		return $menu;



	$menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );



	$count = count( $menu_items );



	$defaults = array(

		'menu-item-db-id' => $menu_item_db_id,

		'menu-item-object-id' => 0,

		'menu-item-object' => '',

		'menu-item-parent-id' => 0,

		'menu-item-position' => 0,

		'menu-item-type' => 'custom',

		'menu-item-title' => '',

		'menu-item-url' => '',

		'menu-item-description' => '',

		'menu-item-attr-title' => '',

		'menu-item-target' => '',

		'menu-item-classes' => '',

		'menu-item-xfn' => '',

		'menu-item-status' => '',

	);



	$args = wp_parse_args( $menu_item_data, $defaults );



	if ( 0 == $menu_id ) {

		$args['menu-item-position'] = 1;

	} elseif ( 0 == (int) $args['menu-item-position'] ) {

		$last_item = array_pop( $menu_items );

		$args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : $count;

	}



	$original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;



	if ( 'custom' != $args['menu-item-type'] ) {

		/* if non-custom menu item, then:

			* use original object's URL

			* blank default title to sync with original object's

		*/



		$args['menu-item-url'] = '';



		$original_title = '';

		if ( 'taxonomy' == $args['menu-item-type'] ) {

			$original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );

			$original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );

		} elseif ( 'post_type' == $args['menu-item-type'] ) {



			$original_object = get_post( $args['menu-item-object-id'] );

			$original_parent = (int) $original_object->post_parent;

			$original_title = $original_object->post_title;

		}



		if ( empty( $args['menu-item-title'] ) || $args['menu-item-title'] == $original_title ) {

			$args['menu-item-title'] = '';



			// hack to get wp to create a post object when too many properties are empty

			if ( empty( $args['menu-item-description'] ) )

				$args['menu-item-description'] = ' ';

		}

	}



	// Populate the menu item object

	$post = array(

		'menu_order' => $args['menu-item-position'],

		'ping_status' => 0,

		'post_content' => $args['menu-item-description'],

		'post_excerpt' => $args['menu-item-attr-title'],

		'post_parent' => $original_parent,

		'post_title' => $args['menu-item-title'],

		'post_type' => 'nav_menu_item',

	);



	if ( 0 != $menu_id )

		$post['tax_input'] = array( 'nav_menu' => array( intval( $menu->term_id ) ) );



	// New menu item. Default is draft status

	if ( 0 == $menu_item_db_id ) {

		$post['ID'] = 0;

		$post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';

		$menu_item_db_id = wp_insert_post( $post );



	// Update existing menu item. Default is publish status

	} else {

		$post['ID'] = $menu_item_db_id;

		$post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish';

		wp_update_post( $post );

	}



	if ( 'custom' == $args['menu-item-type'] ) {

		$args['menu-item-object-id'] = $menu_item_db_id;

		$args['menu-item-object'] = 'custom';

	}



	if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) )

		return $menu_item_db_id;



	$menu_item_db_id = (int) $menu_item_db_id;



	update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) );

	update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', (int) $args['menu-item-parent-id'] );

	update_post_meta( $menu_item_db_id, '_menu_item_object_id', (int) $args['menu-item-object-id'] );

	update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) );

	update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) );



	$args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) );

	$args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) );

	update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] );

	update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] );

	update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) );



	if ( 0 == $menu_id )

		update_post_meta( $menu_item_db_id, '_menu_item_orphaned', time() );

	else

		delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );



	do_action('wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );



	return $menu_item_db_id;

}