Edit file File name : class-wp-rest-navigation-fallback-controller.php Content :<?php /** * WP_REST_Navigation_Fallback_Controller class * * REST Controller to create/fetch a fallback Navigation Menu. * * @package WordPress * @subpackage REST_API * @since 6.3.0 */ /** * REST Controller to fetch a fallback Navigation Block Menu. If needed it creates one. * * @since 6.3.0 */ class WP_REST_Navigation_Fallback_Controller extends WP_REST_Controller { /** * The Post Type for the Controller * * @since 6.3.0 * * @var string */ private $post_type; /** * Constructs the controller. * * @since 6.3.0 */ public function __construct() { $this->namespace = 'wp-block-editor/v1'; $this->rest_base = 'navigation-fallback'; $this->post_type = 'wp_navigation'; } /** * Registers the controllers routes. * * @since 6.3.0 * * @return void */ public function register_routes() { // Lists a single nav item based on the given id or slug. register_rest_route( $this->namespace, '/' . $this->rest_base, array( array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_item' ), 'permission_callback' => array( $this, 'get_item_permissions_check' ), 'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::READABLE ), ), 'schema' => array( $this, 'get_item_schema' ), ) ); } /** * Checks if a given request has access to read fallbacks. * * @since 6.3.0 * * @param WP_REST_Request $request Full details about the request. * @return true|WP_Error True if the request has read access, WP_Error object otherwise. */ public function get_item_permissions_check( $request ) { $post_type = get_post_type_object( $this->post_type ); // Getting fallbacks requires creating and reading `wp_navigation` posts. if ( ! current_user_can( $post_type->cap->create_posts ) || ! current_user_can( 'edit_theme_options' ) || ! current_user_can( 'edit_posts' ) ) { return new WP_Error( 'rest_cannot_create', __( 'Sorry, you are not allowed to create Navigation Menus as this user.' ), array( 'status' => rest_authorization_required_code() ) ); } if ( 'edit' === $request['context'] && ! current_user_can( $post_type->cap->edit_posts ) ) { return new WP_Error( 'rest_forbidden_context', __( 'Sorry, you are not allowed to edit Navigation Menus as this user.' ), array( 'status' => rest_authorization_required_code() ) ); } return true; } /** * Gets the most appropriate fallback Navigation Menu. * * @since 6.3.0 * * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure. */ public function get_item( $request ) { $post = WP_Navigation_Fallback::get_fallback(); if ( empty( $post ) ) { return rest_ensure_response( new WP_Error( 'no_fallback_menu', __( 'No fallback menu found.' ), array( 'status' => 404 ) ) ); } $response = $this->prepare_item_for_response( $post, $request ); return $response; } /** * Retrieves the fallbacks' schema, conforming to JSON Schema. * * @since 6.3.0 * * @return array Item schema data. */ public function get_item_schema() { if ( $this->schema ) { return $this->add_additional_fields_schema( $this->schema ); } $this->schema = array( '$schema' => 'http://json-schema.org/draft-04/schema#', 'title' => 'navigation-fallback', 'type' => 'object', 'properties' => array( 'id' => array( 'description' => __( 'The unique identifier for the Navigation Menu.' ), 'type' => 'integer', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), ), ); return $this->add_additional_fields_schema( $this->schema ); } /** * Matches the post data to the schema we want. * * @since 6.3.0 * * @param WP_Post $item The wp_navigation Post object whose response is being prepared. * @param WP_REST_Request $request Request object. * @return WP_REST_Response $response The response data. */ public function prepare_item_for_response( $item, $request ) { $data = array(); $fields = $this->get_fields_for_response( $request ); if ( rest_is_field_included( 'id', $fields ) ) { $data['id'] = (int) $item->ID; } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $data = $this->add_additional_fields_to_object( $data, $request ); $data = $this->filter_response_by_context( $data, $context ); $response = rest_ensure_response( $data ); if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) { $links = $this->prepare_links( $item ); $response->add_links( $links ); } return $response; } /** * Prepares the links for the request. * * @since 6.3.0 * * @param WP_Post $post the Navigation Menu post object. * @return array Links for the given request. */ private function prepare_links( $post ) { return array( 'self' => array( 'href' => rest_url( rest_get_route_for_post( $post->ID ) ), 'embeddable' => true, ), ); } } Save