wp/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php
changeset 19 3d72ae0968f4
child 21 48c4eec2b7e6
equal deleted inserted replaced
18:be944660c56a 19:3d72ae0968f4
       
     1 <?php
       
     2 /**
       
     3  * REST API: WP_REST_Menu_Items_Controller class
       
     4  *
       
     5  * @package WordPress
       
     6  * @subpackage REST_API
       
     7  * @since 5.9.0
       
     8  */
       
     9 
       
    10 /**
       
    11  * Core class to access nav items via the REST API.
       
    12  *
       
    13  * @since 5.9.0
       
    14  *
       
    15  * @see WP_REST_Posts_Controller
       
    16  */
       
    17 class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
       
    18 
       
    19 	/**
       
    20 	 * Get the nav menu item, if the ID is valid.
       
    21 	 *
       
    22 	 * @since 5.9.0
       
    23 	 *
       
    24 	 * @param int $id Supplied ID.
       
    25 	 * @return object|WP_Error Post object if ID is valid, WP_Error otherwise.
       
    26 	 */
       
    27 	protected function get_nav_menu_item( $id ) {
       
    28 		$post = $this->get_post( $id );
       
    29 		if ( is_wp_error( $post ) ) {
       
    30 			return $post;
       
    31 		}
       
    32 
       
    33 		return wp_setup_nav_menu_item( $post );
       
    34 	}
       
    35 
       
    36 	/**
       
    37 	 * Checks if a given request has access to read menu items.
       
    38 	 *
       
    39 	 * @since 5.9.0
       
    40 	 *
       
    41 	 * @param WP_REST_Request $request Full details about the request.
       
    42 	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
       
    43 	 */
       
    44 	public function get_items_permissions_check( $request ) {
       
    45 		$has_permission = parent::get_items_permissions_check( $request );
       
    46 
       
    47 		if ( true !== $has_permission ) {
       
    48 			return $has_permission;
       
    49 		}
       
    50 
       
    51 		return $this->check_has_read_only_access( $request );
       
    52 	}
       
    53 
       
    54 	/**
       
    55 	 * Checks if a given request has access to read a menu item if they have access to edit them.
       
    56 	 *
       
    57 	 * @since 5.9.0
       
    58 	 *
       
    59 	 * @param WP_REST_Request $request Full details about the request.
       
    60 	 * @return bool|WP_Error True if the request has read access for the item, WP_Error object otherwise.
       
    61 	 */
       
    62 	public function get_item_permissions_check( $request ) {
       
    63 		$permission_check = parent::get_item_permissions_check( $request );
       
    64 
       
    65 		if ( true !== $permission_check ) {
       
    66 			return $permission_check;
       
    67 		}
       
    68 
       
    69 		return $this->check_has_read_only_access( $request );
       
    70 	}
       
    71 
       
    72 	/**
       
    73 	 * Checks whether the current user has read permission for the endpoint.
       
    74 	 *
       
    75 	 * This allows for any user that can `edit_theme_options` or edit any REST API available post type.
       
    76 	 *
       
    77 	 * @since 5.9.0
       
    78 	 *
       
    79 	 * @param WP_REST_Request $request Full details about the request.
       
    80 	 * @return bool|WP_Error Whether the current user has permission.
       
    81 	 */
       
    82 	protected function check_has_read_only_access( $request ) {
       
    83 		if ( current_user_can( 'edit_theme_options' ) ) {
       
    84 			return true;
       
    85 		}
       
    86 
       
    87 		if ( current_user_can( 'edit_posts' ) ) {
       
    88 			return true;
       
    89 		}
       
    90 
       
    91 		foreach ( get_post_types( array( 'show_in_rest' => true ), 'objects' ) as $post_type ) {
       
    92 			if ( current_user_can( $post_type->cap->edit_posts ) ) {
       
    93 				return true;
       
    94 			}
       
    95 		}
       
    96 
       
    97 		return new WP_Error(
       
    98 			'rest_cannot_view',
       
    99 			__( 'Sorry, you are not allowed to view menu items.' ),
       
   100 			array( 'status' => rest_authorization_required_code() )
       
   101 		);
       
   102 	}
       
   103 
       
   104 	/**
       
   105 	 * Creates a single post.
       
   106 	 *
       
   107 	 * @since 5.9.0
       
   108 	 *
       
   109 	 * @param WP_REST_Request $request Full details about the request.
       
   110 	 *
       
   111 	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
       
   112 	 */
       
   113 	public function create_item( $request ) {
       
   114 		if ( ! empty( $request['id'] ) ) {
       
   115 			return new WP_Error( 'rest_post_exists', __( 'Cannot create existing post.' ), array( 'status' => 400 ) );
       
   116 		}
       
   117 
       
   118 		$prepared_nav_item = $this->prepare_item_for_database( $request );
       
   119 
       
   120 		if ( is_wp_error( $prepared_nav_item ) ) {
       
   121 			return $prepared_nav_item;
       
   122 		}
       
   123 		$prepared_nav_item = (array) $prepared_nav_item;
       
   124 
       
   125 		$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 );
       
   126 		if ( is_wp_error( $nav_menu_item_id ) ) {
       
   127 			if ( 'db_insert_error' === $nav_menu_item_id->get_error_code() ) {
       
   128 				$nav_menu_item_id->add_data( array( 'status' => 500 ) );
       
   129 			} else {
       
   130 				$nav_menu_item_id->add_data( array( 'status' => 400 ) );
       
   131 			}
       
   132 
       
   133 			return $nav_menu_item_id;
       
   134 		}
       
   135 
       
   136 		$nav_menu_item = $this->get_nav_menu_item( $nav_menu_item_id );
       
   137 		if ( is_wp_error( $nav_menu_item ) ) {
       
   138 			$nav_menu_item->add_data( array( 'status' => 404 ) );
       
   139 
       
   140 			return $nav_menu_item;
       
   141 		}
       
   142 
       
   143 		/**
       
   144 		 * Fires after a single menu item is created or updated via the REST API.
       
   145 		 *
       
   146 		 * @since 5.9.0
       
   147 		 *
       
   148 		 * @param object          $nav_menu_item Inserted or updated menu item object.
       
   149 		 * @param WP_REST_Request $request       Request object.
       
   150 		 * @param bool            $creating      True when creating a menu item, false when updating.
       
   151 		 */
       
   152 		do_action( 'rest_insert_nav_menu_item', $nav_menu_item, $request, true );
       
   153 
       
   154 		$schema = $this->get_item_schema();
       
   155 
       
   156 		if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
       
   157 			$meta_update = $this->meta->update_value( $request['meta'], $nav_menu_item_id );
       
   158 
       
   159 			if ( is_wp_error( $meta_update ) ) {
       
   160 				return $meta_update;
       
   161 			}
       
   162 		}
       
   163 
       
   164 		$nav_menu_item = $this->get_nav_menu_item( $nav_menu_item_id );
       
   165 		$fields_update = $this->update_additional_fields_for_object( $nav_menu_item, $request );
       
   166 
       
   167 		if ( is_wp_error( $fields_update ) ) {
       
   168 			return $fields_update;
       
   169 		}
       
   170 
       
   171 		$request->set_param( 'context', 'edit' );
       
   172 
       
   173 		/**
       
   174 		 * Fires after a single menu item is completely created or updated via the REST API.
       
   175 		 *
       
   176 		 * @since 5.9.0
       
   177 		 *
       
   178 		 * @param object          $nav_menu_item Inserted or updated menu item object.
       
   179 		 * @param WP_REST_Request $request       Request object.
       
   180 		 * @param bool            $creating      True when creating a menu item, false when updating.
       
   181 		 */
       
   182 		do_action( 'rest_after_insert_nav_menu_item', $nav_menu_item, $request, true );
       
   183 
       
   184 		$post = get_post( $nav_menu_item_id );
       
   185 		wp_after_insert_post( $post, false, null );
       
   186 
       
   187 		$response = $this->prepare_item_for_response( $post, $request );
       
   188 		$response = rest_ensure_response( $response );
       
   189 
       
   190 		$response->set_status( 201 );
       
   191 		$response->header( 'Location', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $nav_menu_item_id ) ) );
       
   192 
       
   193 		return $response;
       
   194 	}
       
   195 
       
   196 	/**
       
   197 	 * Updates a single nav menu item.
       
   198 	 *
       
   199 	 * @since 5.9.0
       
   200 	 *
       
   201 	 * @param WP_REST_Request $request Full details about the request.
       
   202 	 *
       
   203 	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
       
   204 	 */
       
   205 	public function update_item( $request ) {
       
   206 		$valid_check = $this->get_nav_menu_item( $request['id'] );
       
   207 		if ( is_wp_error( $valid_check ) ) {
       
   208 			return $valid_check;
       
   209 		}
       
   210 		$post_before       = get_post( $request['id'] );
       
   211 		$prepared_nav_item = $this->prepare_item_for_database( $request );
       
   212 
       
   213 		if ( is_wp_error( $prepared_nav_item ) ) {
       
   214 			return $prepared_nav_item;
       
   215 		}
       
   216 
       
   217 		$prepared_nav_item = (array) $prepared_nav_item;
       
   218 
       
   219 		$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 );
       
   220 
       
   221 		if ( is_wp_error( $nav_menu_item_id ) ) {
       
   222 			if ( 'db_update_error' === $nav_menu_item_id->get_error_code() ) {
       
   223 				$nav_menu_item_id->add_data( array( 'status' => 500 ) );
       
   224 			} else {
       
   225 				$nav_menu_item_id->add_data( array( 'status' => 400 ) );
       
   226 			}
       
   227 
       
   228 			return $nav_menu_item_id;
       
   229 		}
       
   230 
       
   231 		$nav_menu_item = $this->get_nav_menu_item( $nav_menu_item_id );
       
   232 		if ( is_wp_error( $nav_menu_item ) ) {
       
   233 			$nav_menu_item->add_data( array( 'status' => 404 ) );
       
   234 
       
   235 			return $nav_menu_item;
       
   236 		}
       
   237 
       
   238 		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php */
       
   239 		do_action( 'rest_insert_nav_menu_item', $nav_menu_item, $request, false );
       
   240 
       
   241 		$schema = $this->get_item_schema();
       
   242 
       
   243 		if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
       
   244 			$meta_update = $this->meta->update_value( $request['meta'], $nav_menu_item->ID );
       
   245 
       
   246 			if ( is_wp_error( $meta_update ) ) {
       
   247 				return $meta_update;
       
   248 			}
       
   249 		}
       
   250 
       
   251 		$post          = get_post( $nav_menu_item_id );
       
   252 		$nav_menu_item = $this->get_nav_menu_item( $nav_menu_item_id );
       
   253 		$fields_update = $this->update_additional_fields_for_object( $nav_menu_item, $request );
       
   254 
       
   255 		if ( is_wp_error( $fields_update ) ) {
       
   256 			return $fields_update;
       
   257 		}
       
   258 
       
   259 		$request->set_param( 'context', 'edit' );
       
   260 
       
   261 		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php */
       
   262 		do_action( 'rest_after_insert_nav_menu_item', $nav_menu_item, $request, false );
       
   263 
       
   264 		wp_after_insert_post( $post, true, $post_before );
       
   265 
       
   266 		$response = $this->prepare_item_for_response( get_post( $nav_menu_item_id ), $request );
       
   267 
       
   268 		return rest_ensure_response( $response );
       
   269 	}
       
   270 
       
   271 	/**
       
   272 	 * Deletes a single menu item.
       
   273 	 *
       
   274 	 * @since 5.9.0
       
   275 	 *
       
   276 	 * @param WP_REST_Request $request Full details about the request.
       
   277 	 * @return WP_REST_Response|WP_Error True on success, or WP_Error object on failure.
       
   278 	 */
       
   279 	public function delete_item( $request ) {
       
   280 		$menu_item = $this->get_nav_menu_item( $request['id'] );
       
   281 		if ( is_wp_error( $menu_item ) ) {
       
   282 			return $menu_item;
       
   283 		}
       
   284 
       
   285 		// We don't support trashing for menu items.
       
   286 		if ( ! $request['force'] ) {
       
   287 			/* translators: %s: force=true */
       
   288 			return new WP_Error( 'rest_trash_not_supported', sprintf( __( "Menu items do not support trashing. Set '%s' to delete." ), 'force=true' ), array( 'status' => 501 ) );
       
   289 		}
       
   290 
       
   291 		$previous = $this->prepare_item_for_response( get_post( $request['id'] ), $request );
       
   292 
       
   293 		$result = wp_delete_post( $request['id'], true );
       
   294 
       
   295 		if ( ! $result ) {
       
   296 			return new WP_Error( 'rest_cannot_delete', __( 'The post cannot be deleted.' ), array( 'status' => 500 ) );
       
   297 		}
       
   298 
       
   299 		$response = new WP_REST_Response();
       
   300 		$response->set_data(
       
   301 			array(
       
   302 				'deleted'  => true,
       
   303 				'previous' => $previous->get_data(),
       
   304 			)
       
   305 		);
       
   306 
       
   307 		/**
       
   308 		 * Fires immediately after a single menu item is deleted via the REST API.
       
   309 		 *
       
   310 		 * @since 5.9.0
       
   311 		 *
       
   312 		 * @param object          $nav_menu_item Inserted or updated menu item object.
       
   313 		 * @param WP_REST_Response $response The response data.
       
   314 		 * @param WP_REST_Request $request       Request object.
       
   315 		 */
       
   316 		do_action( 'rest_delete_nav_menu_item', $menu_item, $response, $request );
       
   317 
       
   318 		return $response;
       
   319 	}
       
   320 
       
   321 	/**
       
   322 	 * Prepares a single post for create or update.
       
   323 	 *
       
   324 	 * @since 5.9.0
       
   325 	 *
       
   326 	 * @param WP_REST_Request $request Request object.
       
   327 	 *
       
   328 	 * @return object|WP_Error
       
   329 	 */
       
   330 	protected function prepare_item_for_database( $request ) {
       
   331 		$menu_item_db_id = $request['id'];
       
   332 		$menu_item_obj   = $this->get_nav_menu_item( $menu_item_db_id );
       
   333 		// Need to persist the menu item data. See https://core.trac.wordpress.org/ticket/28138
       
   334 		if ( ! is_wp_error( $menu_item_obj ) ) {
       
   335 			// Correct the menu position if this was the first item. See https://core.trac.wordpress.org/ticket/28140
       
   336 			$position = ( 0 === $menu_item_obj->menu_order ) ? 1 : $menu_item_obj->menu_order;
       
   337 
       
   338 			$prepared_nav_item = array(
       
   339 				'menu-item-db-id'       => $menu_item_db_id,
       
   340 				'menu-item-object-id'   => $menu_item_obj->object_id,
       
   341 				'menu-item-object'      => $menu_item_obj->object,
       
   342 				'menu-item-parent-id'   => $menu_item_obj->menu_item_parent,
       
   343 				'menu-item-position'    => $position,
       
   344 				'menu-item-type'        => $menu_item_obj->type,
       
   345 				'menu-item-title'       => $menu_item_obj->title,
       
   346 				'menu-item-url'         => $menu_item_obj->url,
       
   347 				'menu-item-description' => $menu_item_obj->description,
       
   348 				'menu-item-attr-title'  => $menu_item_obj->attr_title,
       
   349 				'menu-item-target'      => $menu_item_obj->target,
       
   350 				'menu-item-classes'     => $menu_item_obj->classes,
       
   351 				// Stored in the database as a string.
       
   352 				'menu-item-xfn'         => explode( ' ', $menu_item_obj->xfn ),
       
   353 				'menu-item-status'      => $menu_item_obj->post_status,
       
   354 				'menu-id'               => $this->get_menu_id( $menu_item_db_id ),
       
   355 			);
       
   356 		} else {
       
   357 			$prepared_nav_item = array(
       
   358 				'menu-id'               => 0,
       
   359 				'menu-item-db-id'       => 0,
       
   360 				'menu-item-object-id'   => 0,
       
   361 				'menu-item-object'      => '',
       
   362 				'menu-item-parent-id'   => 0,
       
   363 				'menu-item-position'    => 1,
       
   364 				'menu-item-type'        => 'custom',
       
   365 				'menu-item-title'       => '',
       
   366 				'menu-item-url'         => '',
       
   367 				'menu-item-description' => '',
       
   368 				'menu-item-attr-title'  => '',
       
   369 				'menu-item-target'      => '',
       
   370 				'menu-item-classes'     => array(),
       
   371 				'menu-item-xfn'         => array(),
       
   372 				'menu-item-status'      => 'publish',
       
   373 			);
       
   374 		}
       
   375 
       
   376 		$mapping = array(
       
   377 			'menu-item-db-id'       => 'id',
       
   378 			'menu-item-object-id'   => 'object_id',
       
   379 			'menu-item-object'      => 'object',
       
   380 			'menu-item-parent-id'   => 'parent',
       
   381 			'menu-item-position'    => 'menu_order',
       
   382 			'menu-item-type'        => 'type',
       
   383 			'menu-item-url'         => 'url',
       
   384 			'menu-item-description' => 'description',
       
   385 			'menu-item-attr-title'  => 'attr_title',
       
   386 			'menu-item-target'      => 'target',
       
   387 			'menu-item-classes'     => 'classes',
       
   388 			'menu-item-xfn'         => 'xfn',
       
   389 			'menu-item-status'      => 'status',
       
   390 		);
       
   391 
       
   392 		$schema = $this->get_item_schema();
       
   393 
       
   394 		foreach ( $mapping as $original => $api_request ) {
       
   395 			if ( isset( $request[ $api_request ] ) ) {
       
   396 				$prepared_nav_item[ $original ] = $request[ $api_request ];
       
   397 			}
       
   398 		}
       
   399 
       
   400 		$taxonomy = get_taxonomy( 'nav_menu' );
       
   401 		$base     = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
       
   402 		// If menus submitted, cast to int.
       
   403 		if ( ! empty( $request[ $base ] ) ) {
       
   404 			$prepared_nav_item['menu-id'] = absint( $request[ $base ] );
       
   405 		}
       
   406 
       
   407 		// Nav menu title.
       
   408 		if ( ! empty( $schema['properties']['title'] ) && isset( $request['title'] ) ) {
       
   409 			if ( is_string( $request['title'] ) ) {
       
   410 				$prepared_nav_item['menu-item-title'] = $request['title'];
       
   411 			} elseif ( ! empty( $request['title']['raw'] ) ) {
       
   412 				$prepared_nav_item['menu-item-title'] = $request['title']['raw'];
       
   413 			}
       
   414 		}
       
   415 
       
   416 		$error = new WP_Error();
       
   417 
       
   418 		// Check if object id exists before saving.
       
   419 		if ( ! $prepared_nav_item['menu-item-object'] ) {
       
   420 			// If taxonomy, check if term exists.
       
   421 			if ( 'taxonomy' === $prepared_nav_item['menu-item-type'] ) {
       
   422 				$original = get_term( absint( $prepared_nav_item['menu-item-object-id'] ) );
       
   423 				if ( empty( $original ) || is_wp_error( $original ) ) {
       
   424 					$error->add( 'rest_term_invalid_id', __( 'Invalid term ID.' ), array( 'status' => 400 ) );
       
   425 				} else {
       
   426 					$prepared_nav_item['menu-item-object'] = get_term_field( 'taxonomy', $original );
       
   427 				}
       
   428 				// If post, check if post object exists.
       
   429 			} elseif ( 'post_type' === $prepared_nav_item['menu-item-type'] ) {
       
   430 				$original = get_post( absint( $prepared_nav_item['menu-item-object-id'] ) );
       
   431 				if ( empty( $original ) ) {
       
   432 					$error->add( 'rest_post_invalid_id', __( 'Invalid post ID.' ), array( 'status' => 400 ) );
       
   433 				} else {
       
   434 					$prepared_nav_item['menu-item-object'] = get_post_type( $original );
       
   435 				}
       
   436 			}
       
   437 		}
       
   438 
       
   439 		// If post type archive, check if post type exists.
       
   440 		if ( 'post_type_archive' === $prepared_nav_item['menu-item-type'] ) {
       
   441 			$post_type = $prepared_nav_item['menu-item-object'] ? $prepared_nav_item['menu-item-object'] : false;
       
   442 			$original  = get_post_type_object( $post_type );
       
   443 			if ( ! $original ) {
       
   444 				$error->add( 'rest_post_invalid_type', __( 'Invalid post type.' ), array( 'status' => 400 ) );
       
   445 			}
       
   446 		}
       
   447 
       
   448 		// Check if menu item is type custom, then title and url are required.
       
   449 		if ( 'custom' === $prepared_nav_item['menu-item-type'] ) {
       
   450 			if ( '' === $prepared_nav_item['menu-item-title'] ) {
       
   451 				$error->add( 'rest_title_required', __( 'The title is required when using a custom menu item type.' ), array( 'status' => 400 ) );
       
   452 			}
       
   453 			if ( empty( $prepared_nav_item['menu-item-url'] ) ) {
       
   454 				$error->add( 'rest_url_required', __( 'The url is required when using a custom menu item type.' ), array( 'status' => 400 ) );
       
   455 			}
       
   456 		}
       
   457 
       
   458 		if ( $error->has_errors() ) {
       
   459 			return $error;
       
   460 		}
       
   461 
       
   462 		// The xfn and classes properties are arrays, but passed to wp_update_nav_menu_item as a string.
       
   463 		foreach ( array( 'menu-item-xfn', 'menu-item-classes' ) as $key ) {
       
   464 			$prepared_nav_item[ $key ] = implode( ' ', $prepared_nav_item[ $key ] );
       
   465 		}
       
   466 
       
   467 		// Only draft / publish are valid post status for menu items.
       
   468 		if ( 'publish' !== $prepared_nav_item['menu-item-status'] ) {
       
   469 			$prepared_nav_item['menu-item-status'] = 'draft';
       
   470 		}
       
   471 
       
   472 		$prepared_nav_item = (object) $prepared_nav_item;
       
   473 
       
   474 		/**
       
   475 		 * Filters a menu item before it is inserted via the REST API.
       
   476 		 *
       
   477 		 * @since 5.9.0
       
   478 		 *
       
   479 		 * @param object          $prepared_nav_item An object representing a single menu item prepared
       
   480 		 *                                           for inserting or updating the database.
       
   481 		 * @param WP_REST_Request $request           Request object.
       
   482 		 */
       
   483 		return apply_filters( 'rest_pre_insert_nav_menu_item', $prepared_nav_item, $request );
       
   484 	}
       
   485 
       
   486 	/**
       
   487 	 * Prepares a single post output for response.
       
   488 	 *
       
   489 	 * @since 5.9.0
       
   490 	 *
       
   491 	 * @param WP_Post          $item   Post object.
       
   492 	 * @param WP_REST_Request $request Request object.
       
   493 	 * @return WP_REST_Response Response object.
       
   494 	 */
       
   495 	public function prepare_item_for_response( $item, $request ) {
       
   496 		// Base fields for every post.
       
   497 		$fields    = $this->get_fields_for_response( $request );
       
   498 		$menu_item = $this->get_nav_menu_item( $item->ID );
       
   499 		$data      = array();
       
   500 
       
   501 		if ( rest_is_field_included( 'id', $fields ) ) {
       
   502 			$data['id'] = $menu_item->ID;
       
   503 		}
       
   504 
       
   505 		if ( rest_is_field_included( 'title', $fields ) ) {
       
   506 			$data['title'] = array();
       
   507 		}
       
   508 
       
   509 		if ( rest_is_field_included( 'title.raw', $fields ) ) {
       
   510 			$data['title']['raw'] = $menu_item->title;
       
   511 		}
       
   512 
       
   513 		if ( rest_is_field_included( 'title.rendered', $fields ) ) {
       
   514 			add_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
       
   515 
       
   516 			/** This filter is documented in wp-includes/post-template.php */
       
   517 			$title = apply_filters( 'the_title', $menu_item->title, $menu_item->ID );
       
   518 
       
   519 			$data['title']['rendered'] = $title;
       
   520 
       
   521 			remove_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
       
   522 		}
       
   523 
       
   524 		if ( rest_is_field_included( 'status', $fields ) ) {
       
   525 			$data['status'] = $menu_item->post_status;
       
   526 		}
       
   527 
       
   528 		if ( rest_is_field_included( 'url', $fields ) ) {
       
   529 			$data['url'] = $menu_item->url;
       
   530 		}
       
   531 
       
   532 		if ( rest_is_field_included( 'attr_title', $fields ) ) {
       
   533 			// Same as post_excerpt.
       
   534 			$data['attr_title'] = $menu_item->attr_title;
       
   535 		}
       
   536 
       
   537 		if ( rest_is_field_included( 'description', $fields ) ) {
       
   538 			// Same as post_content.
       
   539 			$data['description'] = $menu_item->description;
       
   540 		}
       
   541 
       
   542 		if ( rest_is_field_included( 'type', $fields ) ) {
       
   543 			$data['type'] = $menu_item->type;
       
   544 		}
       
   545 
       
   546 		if ( rest_is_field_included( 'type_label', $fields ) ) {
       
   547 			$data['type_label'] = $menu_item->type_label;
       
   548 		}
       
   549 
       
   550 		if ( rest_is_field_included( 'object', $fields ) ) {
       
   551 			$data['object'] = $menu_item->object;
       
   552 		}
       
   553 
       
   554 		if ( rest_is_field_included( 'object_id', $fields ) ) {
       
   555 			// It is stored as a string, but should be exposed as an integer.
       
   556 			$data['object_id'] = absint( $menu_item->object_id );
       
   557 		}
       
   558 
       
   559 		if ( rest_is_field_included( 'parent', $fields ) ) {
       
   560 			// Same as post_parent, exposed as an integer.
       
   561 			$data['parent'] = (int) $menu_item->menu_item_parent;
       
   562 		}
       
   563 
       
   564 		if ( rest_is_field_included( 'menu_order', $fields ) ) {
       
   565 			// Same as post_parent, exposed as an integer.
       
   566 			$data['menu_order'] = (int) $menu_item->menu_order;
       
   567 		}
       
   568 
       
   569 		if ( rest_is_field_included( 'target', $fields ) ) {
       
   570 			$data['target'] = $menu_item->target;
       
   571 		}
       
   572 
       
   573 		if ( rest_is_field_included( 'classes', $fields ) ) {
       
   574 			$data['classes'] = (array) $menu_item->classes;
       
   575 		}
       
   576 
       
   577 		if ( rest_is_field_included( 'xfn', $fields ) ) {
       
   578 			$data['xfn'] = array_map( 'sanitize_html_class', explode( ' ', $menu_item->xfn ) );
       
   579 		}
       
   580 
       
   581 		if ( rest_is_field_included( 'invalid', $fields ) ) {
       
   582 			$data['invalid'] = (bool) $menu_item->_invalid;
       
   583 		}
       
   584 
       
   585 		if ( rest_is_field_included( 'meta', $fields ) ) {
       
   586 			$data['meta'] = $this->meta->get_value( $menu_item->ID, $request );
       
   587 		}
       
   588 
       
   589 		$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
       
   590 
       
   591 		foreach ( $taxonomies as $taxonomy ) {
       
   592 			$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
       
   593 
       
   594 			if ( rest_is_field_included( $base, $fields ) ) {
       
   595 				$terms = get_the_terms( $item, $taxonomy->name );
       
   596 				if ( ! is_array( $terms ) ) {
       
   597 					continue;
       
   598 				}
       
   599 				$term_ids = $terms ? array_values( wp_list_pluck( $terms, 'term_id' ) ) : array();
       
   600 				if ( 'nav_menu' === $taxonomy->name ) {
       
   601 					$data[ $base ] = $term_ids ? array_shift( $term_ids ) : 0;
       
   602 				} else {
       
   603 					$data[ $base ] = $term_ids;
       
   604 				}
       
   605 			}
       
   606 		}
       
   607 
       
   608 		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
       
   609 		$data    = $this->add_additional_fields_to_object( $data, $request );
       
   610 		$data    = $this->filter_response_by_context( $data, $context );
       
   611 
       
   612 		// Wrap the data in a response object.
       
   613 		$response = rest_ensure_response( $data );
       
   614 
       
   615 		$links = $this->prepare_links( $item );
       
   616 		$response->add_links( $links );
       
   617 
       
   618 		if ( ! empty( $links['self']['href'] ) ) {
       
   619 			$actions = $this->get_available_actions( $item, $request );
       
   620 
       
   621 			$self = $links['self']['href'];
       
   622 
       
   623 			foreach ( $actions as $rel ) {
       
   624 				$response->add_link( $rel, $self );
       
   625 			}
       
   626 		}
       
   627 
       
   628 		/**
       
   629 		 * Filters the menu item data for a REST API response.
       
   630 		 *
       
   631 		 * @since 5.9.0
       
   632 		 *
       
   633 		 * @param WP_REST_Response $response  The response object.
       
   634 		 * @param object           $menu_item Menu item setup by {@see wp_setup_nav_menu_item()}.
       
   635 		 * @param WP_REST_Request  $request   Request object.
       
   636 		 */
       
   637 		return apply_filters( 'rest_prepare_nav_menu_item', $response, $menu_item, $request );
       
   638 	}
       
   639 
       
   640 	/**
       
   641 	 * Prepares links for the request.
       
   642 	 *
       
   643 	 * @since 5.9.0
       
   644 	 *
       
   645 	 * @param WP_Post $post Post object.
       
   646 	 * @return array Links for the given post.
       
   647 	 */
       
   648 	protected function prepare_links( $post ) {
       
   649 		$links     = parent::prepare_links( $post );
       
   650 		$menu_item = $this->get_nav_menu_item( $post->ID );
       
   651 
       
   652 		if ( empty( $menu_item->object_id ) ) {
       
   653 			return $links;
       
   654 		}
       
   655 
       
   656 		$path = '';
       
   657 		$type = '';
       
   658 		$key  = $menu_item->type;
       
   659 		if ( 'post_type' === $menu_item->type ) {
       
   660 			$path = rest_get_route_for_post( $menu_item->object_id );
       
   661 			$type = get_post_type( $menu_item->object_id );
       
   662 		} elseif ( 'taxonomy' === $menu_item->type ) {
       
   663 			$path = rest_get_route_for_term( $menu_item->object_id );
       
   664 			$type = get_term_field( 'taxonomy', $menu_item->object_id );
       
   665 		}
       
   666 
       
   667 		if ( $path && $type ) {
       
   668 			$links['https://api.w.org/menu-item-object'][] = array(
       
   669 				'href'       => rest_url( $path ),
       
   670 				$key         => $type,
       
   671 				'embeddable' => true,
       
   672 			);
       
   673 		}
       
   674 
       
   675 		return $links;
       
   676 	}
       
   677 
       
   678 	/**
       
   679 	 * Retrieve Link Description Objects that should be added to the Schema for the posts collection.
       
   680 	 *
       
   681 	 * @since 5.9.0
       
   682 	 *
       
   683 	 * @return array
       
   684 	 */
       
   685 	protected function get_schema_links() {
       
   686 		$links   = parent::get_schema_links();
       
   687 		$href    = rest_url( "{$this->namespace}/{$this->rest_base}/{id}" );
       
   688 		$links[] = array(
       
   689 			'rel'          => 'https://api.w.org/menu-item-object',
       
   690 			'title'        => __( 'Get linked object.' ),
       
   691 			'href'         => $href,
       
   692 			'targetSchema' => array(
       
   693 				'type'       => 'object',
       
   694 				'properties' => array(
       
   695 					'object' => array(
       
   696 						'type' => 'integer',
       
   697 					),
       
   698 				),
       
   699 			),
       
   700 		);
       
   701 
       
   702 		return $links;
       
   703 	}
       
   704 
       
   705 	/**
       
   706 	 * Retrieves the term's schema, conforming to JSON Schema.
       
   707 	 *
       
   708 	 * @since 5.9.0
       
   709 	 *
       
   710 	 * @return array Item schema data.
       
   711 	 */
       
   712 	public function get_item_schema() {
       
   713 		$schema = array(
       
   714 			'$schema' => 'http://json-schema.org/draft-04/schema#',
       
   715 			'title'   => $this->post_type,
       
   716 			'type'    => 'object',
       
   717 		);
       
   718 
       
   719 		$schema['properties']['title'] = array(
       
   720 			'description' => __( 'The title for the object.' ),
       
   721 			'type'        => array( 'string', 'object' ),
       
   722 			'context'     => array( 'view', 'edit', 'embed' ),
       
   723 			'properties'  => array(
       
   724 				'raw'      => array(
       
   725 					'description' => __( 'Title for the object, as it exists in the database.' ),
       
   726 					'type'        => 'string',
       
   727 					'context'     => array( 'edit' ),
       
   728 				),
       
   729 				'rendered' => array(
       
   730 					'description' => __( 'HTML title for the object, transformed for display.' ),
       
   731 					'type'        => 'string',
       
   732 					'context'     => array( 'view', 'edit', 'embed' ),
       
   733 					'readonly'    => true,
       
   734 				),
       
   735 			),
       
   736 		);
       
   737 
       
   738 		$schema['properties']['id'] = array(
       
   739 			'description' => __( 'Unique identifier for the object.' ),
       
   740 			'type'        => 'integer',
       
   741 			'default'     => 0,
       
   742 			'minimum'     => 0,
       
   743 			'context'     => array( 'view', 'edit', 'embed' ),
       
   744 			'readonly'    => true,
       
   745 		);
       
   746 
       
   747 		$schema['properties']['type_label'] = array(
       
   748 			'description' => __( 'Name of type.' ),
       
   749 			'type'        => 'string',
       
   750 			'context'     => array( 'view', 'edit', 'embed' ),
       
   751 			'readonly'    => true,
       
   752 		);
       
   753 
       
   754 		$schema['properties']['type'] = array(
       
   755 			'description' => __( 'The family of objects originally represented, such as "post_type" or "taxonomy".' ),
       
   756 			'type'        => 'string',
       
   757 			'enum'        => array( 'taxonomy', 'post_type', 'post_type_archive', 'custom' ),
       
   758 			'context'     => array( 'view', 'edit', 'embed' ),
       
   759 			'default'     => 'custom',
       
   760 		);
       
   761 
       
   762 		$schema['properties']['status'] = array(
       
   763 			'description' => __( 'A named status for the object.' ),
       
   764 			'type'        => 'string',
       
   765 			'enum'        => array_keys( get_post_stati( array( 'internal' => false ) ) ),
       
   766 			'default'     => 'publish',
       
   767 			'context'     => array( 'view', 'edit', 'embed' ),
       
   768 		);
       
   769 
       
   770 		$schema['properties']['parent'] = array(
       
   771 			'description' => __( 'The ID for the parent of the object.' ),
       
   772 			'type'        => 'integer',
       
   773 			'minimum'     => 0,
       
   774 			'default'     => 0,
       
   775 			'context'     => array( 'view', 'edit', 'embed' ),
       
   776 		);
       
   777 
       
   778 		$schema['properties']['attr_title'] = array(
       
   779 			'description' => __( 'Text for the title attribute of the link element for this menu item.' ),
       
   780 			'type'        => 'string',
       
   781 			'context'     => array( 'view', 'edit', 'embed' ),
       
   782 			'arg_options' => array(
       
   783 				'sanitize_callback' => 'sanitize_text_field',
       
   784 			),
       
   785 		);
       
   786 
       
   787 		$schema['properties']['classes'] = array(
       
   788 			'description' => __( 'Class names for the link element of this menu item.' ),
       
   789 			'type'        => 'array',
       
   790 			'items'       => array(
       
   791 				'type' => 'string',
       
   792 			),
       
   793 			'context'     => array( 'view', 'edit', 'embed' ),
       
   794 			'arg_options' => array(
       
   795 				'sanitize_callback' => function ( $value ) {
       
   796 					return array_map( 'sanitize_html_class', wp_parse_list( $value ) );
       
   797 				},
       
   798 			),
       
   799 		);
       
   800 
       
   801 		$schema['properties']['description'] = array(
       
   802 			'description' => __( 'The description of this menu item.' ),
       
   803 			'type'        => 'string',
       
   804 			'context'     => array( 'view', 'edit', 'embed' ),
       
   805 			'arg_options' => array(
       
   806 				'sanitize_callback' => 'sanitize_text_field',
       
   807 			),
       
   808 		);
       
   809 
       
   810 		$schema['properties']['menu_order'] = array(
       
   811 			'description' => __( 'The DB ID of the nav_menu_item that is this item\'s menu parent, if any, otherwise 0.' ),
       
   812 			'context'     => array( 'view', 'edit', 'embed' ),
       
   813 			'type'        => 'integer',
       
   814 			'minimum'     => 1,
       
   815 			'default'     => 1,
       
   816 		);
       
   817 
       
   818 		$schema['properties']['object'] = array(
       
   819 			'description' => __( 'The type of object originally represented, such as "category", "post", or "attachment".' ),
       
   820 			'context'     => array( 'view', 'edit', 'embed' ),
       
   821 			'type'        => 'string',
       
   822 			'arg_options' => array(
       
   823 				'sanitize_callback' => 'sanitize_key',
       
   824 			),
       
   825 		);
       
   826 
       
   827 		$schema['properties']['object_id'] = array(
       
   828 			'description' => __( 'The database ID of the original object this menu item represents, for example the ID for posts or the term_id for categories.' ),
       
   829 			'context'     => array( 'view', 'edit', 'embed' ),
       
   830 			'type'        => 'integer',
       
   831 			'minimum'     => 0,
       
   832 			'default'     => 0,
       
   833 		);
       
   834 
       
   835 		$schema['properties']['target'] = array(
       
   836 			'description' => __( 'The target attribute of the link element for this menu item.' ),
       
   837 			'type'        => 'string',
       
   838 			'context'     => array( 'view', 'edit', 'embed' ),
       
   839 			'enum'        => array(
       
   840 				'_blank',
       
   841 				'',
       
   842 			),
       
   843 		);
       
   844 
       
   845 		$schema['properties']['type_label'] = array(
       
   846 			'description' => __( 'The singular label used to describe this type of menu item.' ),
       
   847 			'context'     => array( 'view', 'edit', 'embed' ),
       
   848 			'type'        => 'string',
       
   849 			'readonly'    => true,
       
   850 		);
       
   851 
       
   852 		$schema['properties']['url'] = array(
       
   853 			'description' => __( 'The URL to which this menu item points.' ),
       
   854 			'type'        => 'string',
       
   855 			'format'      => 'uri',
       
   856 			'context'     => array( 'view', 'edit', 'embed' ),
       
   857 			'arg_options' => array(
       
   858 				'validate_callback' => static function ( $url ) {
       
   859 					if ( '' === $url ) {
       
   860 						return true;
       
   861 					}
       
   862 
       
   863 					if ( esc_url_raw( $url ) ) {
       
   864 						return true;
       
   865 					}
       
   866 
       
   867 					return new WP_Error(
       
   868 						'rest_invalid_url',
       
   869 						__( 'Invalid URL.' )
       
   870 					);
       
   871 				},
       
   872 			),
       
   873 		);
       
   874 
       
   875 		$schema['properties']['xfn'] = array(
       
   876 			'description' => __( 'The XFN relationship expressed in the link of this menu item.' ),
       
   877 			'type'        => 'array',
       
   878 			'items'       => array(
       
   879 				'type' => 'string',
       
   880 			),
       
   881 			'context'     => array( 'view', 'edit', 'embed' ),
       
   882 			'arg_options' => array(
       
   883 				'sanitize_callback' => function ( $value ) {
       
   884 					return array_map( 'sanitize_html_class', wp_parse_list( $value ) );
       
   885 				},
       
   886 			),
       
   887 		);
       
   888 
       
   889 		$schema['properties']['invalid'] = array(
       
   890 			'description' => __( 'Whether the menu item represents an object that no longer exists.' ),
       
   891 			'context'     => array( 'view', 'edit', 'embed' ),
       
   892 			'type'        => 'boolean',
       
   893 			'readonly'    => true,
       
   894 		);
       
   895 
       
   896 		$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
       
   897 
       
   898 		foreach ( $taxonomies as $taxonomy ) {
       
   899 			$base                          = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
       
   900 			$schema['properties'][ $base ] = array(
       
   901 				/* translators: %s: taxonomy name */
       
   902 				'description' => sprintf( __( 'The terms assigned to the object in the %s taxonomy.' ), $taxonomy->name ),
       
   903 				'type'        => 'array',
       
   904 				'items'       => array(
       
   905 					'type' => 'integer',
       
   906 				),
       
   907 				'context'     => array( 'view', 'edit' ),
       
   908 			);
       
   909 
       
   910 			if ( 'nav_menu' === $taxonomy->name ) {
       
   911 				$schema['properties'][ $base ]['type'] = 'integer';
       
   912 				unset( $schema['properties'][ $base ]['items'] );
       
   913 			}
       
   914 		}
       
   915 
       
   916 		$schema['properties']['meta'] = $this->meta->get_field_schema();
       
   917 
       
   918 		$schema_links = $this->get_schema_links();
       
   919 
       
   920 		if ( $schema_links ) {
       
   921 			$schema['links'] = $schema_links;
       
   922 		}
       
   923 
       
   924 		return $this->add_additional_fields_schema( $schema );
       
   925 	}
       
   926 
       
   927 	/**
       
   928 	 * Retrieves the query params for the posts collection.
       
   929 	 *
       
   930 	 * @since 5.9.0
       
   931 	 *
       
   932 	 * @return array Collection parameters.
       
   933 	 */
       
   934 	public function get_collection_params() {
       
   935 		$query_params = parent::get_collection_params();
       
   936 
       
   937 		$query_params['menu_order'] = array(
       
   938 			'description' => __( 'Limit result set to posts with a specific menu_order value.' ),
       
   939 			'type'        => 'integer',
       
   940 		);
       
   941 
       
   942 		$query_params['order'] = array(
       
   943 			'description' => __( 'Order sort attribute ascending or descending.' ),
       
   944 			'type'        => 'string',
       
   945 			'default'     => 'asc',
       
   946 			'enum'        => array( 'asc', 'desc' ),
       
   947 		);
       
   948 
       
   949 		$query_params['orderby'] = array(
       
   950 			'description' => __( 'Sort collection by object attribute.' ),
       
   951 			'type'        => 'string',
       
   952 			'default'     => 'menu_order',
       
   953 			'enum'        => array(
       
   954 				'author',
       
   955 				'date',
       
   956 				'id',
       
   957 				'include',
       
   958 				'modified',
       
   959 				'parent',
       
   960 				'relevance',
       
   961 				'slug',
       
   962 				'include_slugs',
       
   963 				'title',
       
   964 				'menu_order',
       
   965 			),
       
   966 		);
       
   967 		// Change default to 100 items.
       
   968 		$query_params['per_page']['default'] = 100;
       
   969 
       
   970 		return $query_params;
       
   971 	}
       
   972 
       
   973 	/**
       
   974 	 * Determines the allowed query_vars for a get_items() response and prepares
       
   975 	 * them for WP_Query.
       
   976 	 *
       
   977 	 * @since 5.9.0
       
   978 	 *
       
   979 	 * @param array           $prepared_args Optional. Prepared WP_Query arguments. Default empty array.
       
   980 	 * @param WP_REST_Request $request       Optional. Full details about the request.
       
   981 	 * @return array Items query arguments.
       
   982 	 */
       
   983 	protected function prepare_items_query( $prepared_args = array(), $request = null ) {
       
   984 		$query_args = parent::prepare_items_query( $prepared_args, $request );
       
   985 
       
   986 		// Map to proper WP_Query orderby param.
       
   987 		if ( isset( $query_args['orderby'], $request['orderby'] ) ) {
       
   988 			$orderby_mappings = array(
       
   989 				'id'            => 'ID',
       
   990 				'include'       => 'post__in',
       
   991 				'slug'          => 'post_name',
       
   992 				'include_slugs' => 'post_name__in',
       
   993 				'menu_order'    => 'menu_order',
       
   994 			);
       
   995 
       
   996 			if ( isset( $orderby_mappings[ $request['orderby'] ] ) ) {
       
   997 				$query_args['orderby'] = $orderby_mappings[ $request['orderby'] ];
       
   998 			}
       
   999 		}
       
  1000 
       
  1001 		return $query_args;
       
  1002 	}
       
  1003 
       
  1004 	/**
       
  1005 	 * Gets the id of the menu that the given menu item belongs to.
       
  1006 	 *
       
  1007 	 * @since 5.9.0
       
  1008 	 *
       
  1009 	 * @param int $menu_item_id Menu item id.
       
  1010 	 * @return int
       
  1011 	 */
       
  1012 	protected function get_menu_id( $menu_item_id ) {
       
  1013 		$menu_ids = wp_get_post_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
       
  1014 		$menu_id  = 0;
       
  1015 		if ( $menu_ids && ! is_wp_error( $menu_ids ) ) {
       
  1016 			$menu_id = array_shift( $menu_ids );
       
  1017 		}
       
  1018 
       
  1019 		return $menu_id;
       
  1020 	}
       
  1021 }