WP_REST_Menu_Items_Controller::update_item() WordPress Method

	public function update_item( $request ) {
		$valid_check = $this->get_nav_menu_item( $request['id'] );
		if ( is_wp_error( $valid_check ) ) {
			return $valid_check;
		}
		$post_before       = get_post( $request['id'] );
		$prepared_nav_item = $this->prepare_item_for_database( $request );

		if ( is_wp_error( $prepared_nav_item ) ) {
			return $prepared_nav_item;
		}

		$prepared_nav_item = (array) $prepared_nav_item;

		$nav_menu_item_id = wp_update_nav_menu_item( $prepared_nav_item['menu-id'], $prepared_nav_item['menu-item-db-id'], wp_slash( $prepared_nav_item ), false );

		if ( is_wp_error( $nav_menu_item_id ) ) {
			if ( 'db_update_error' === $nav_menu_item_id->get_error_code() ) {
				$nav_menu_item_id->add_data( array( 'status' => 500 ) );
			} else {
				$nav_menu_item_id->add_data( array( 'status' => 400 ) );
			}

			return $nav_menu_item_id;
		}

		$nav_menu_item = $this->get_nav_menu_item( $nav_menu_item_id );
		if ( is_wp_error( $nav_menu_item ) ) {
			$nav_menu_item->add_data( array( 'status' => 404 ) );

			return $nav_menu_item;
		}

		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php */
		do_action( 'rest_insert_nav_menu_item', $nav_menu_item, $request, false );

		$schema = $this->get_item_schema();

		if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
			$meta_update = $this->meta->update_value( $request['meta'], $nav_menu_item->ID );

			if ( is_wp_error( $meta_update ) ) {
				return $meta_update;
			}
		}

		$post          = get_post( $nav_menu_item_id );
		$nav_menu_item = $this->get_nav_menu_item( $nav_menu_item_id );
		$fields_update = $this->update_additional_fields_for_object( $nav_menu_item, $request );

		if ( is_wp_error( $fields_update ) ) {
			return $fields_update;
		}

		$request->set_param( 'context', 'edit' );

		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php */
		do_action( 'rest_after_insert_nav_menu_item', $nav_menu_item, $request, false );

		wp_after_insert_post( $post, true, $post_before );

		$response = $this->prepare_item_for_response( get_post( $nav_menu_item_id ), $request );

		return rest_ensure_response( $response );
	}