parent_post_type = $parent_post_type; $post_type_object = get_post_type_object( $parent_post_type ); $parent_controller = $post_type_object->get_rest_controller(); if ( ! $parent_controller ) { $parent_controller = new WP_REST_Templates_Controller( $parent_post_type ); } $this->parent_controller = $parent_controller; $this->rest_base = 'revisions'; $this->parent_base = ! empty( $post_type_object->rest_base ) ? $post_type_object->rest_base : $post_type_object->name; $this->namespace = ! empty( $post_type_object->rest_namespace ) ? $post_type_object->rest_namespace : 'wp/v2'; } /** * Registers the routes for revisions based on post types supporting revisions. * * @since 6.4.0 * * @see register_rest_route() */ public function register_routes() { register_rest_route( $this->namespace, sprintf( '/%s/(?P%s%s)/%s', $this->parent_base, /* * Matches theme's directory: `/themes///` or `/themes//`. * Excludes invalid directory name characters: `/:<>*?"|`. */ '([^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?)', // Matches the template name. '[\/\w%-]+', $this->rest_base ), array( 'args' => array( 'parent' => array( 'description' => __( 'The id of a template' ), 'type' => 'string', 'sanitize_callback' => array( $this->parent_controller, '_sanitize_template_id' ), ), ), array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_items' ), 'permission_callback' => array( $this, 'get_items_permissions_check' ), 'args' => $this->get_collection_params(), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); register_rest_route( $this->namespace, sprintf( '/%s/(?P%s%s)/%s/%s', $this->parent_base, /* * Matches theme's directory: `/themes///` or `/themes//`. * Excludes invalid directory name characters: `/:<>*?"|`. */ '([^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?)', // Matches the template name. '[\/\w%-]+', $this->rest_base, '(?P[\d]+)' ), array( 'args' => array( 'parent' => array( 'description' => __( 'The id of a template' ), 'type' => 'string', 'sanitize_callback' => array( $this->parent_controller, '_sanitize_template_id' ), ), 'id' => array( 'description' => __( 'Unique identifier for the revision.' ), 'type' => 'integer', ), ), array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_item' ), 'permission_callback' => array( $this, 'get_item_permissions_check' ), 'args' => array( 'context' => $this->get_context_param( array( 'default' => 'view' ) ), ), ), array( 'methods' => WP_REST_Server::DELETABLE, 'callback' => array( $this, 'delete_item' ), 'permission_callback' => array( $this, 'delete_item_permissions_check' ), 'args' => array( 'force' => array( 'type' => 'boolean', 'default' => false, 'description' => __( 'Required to be true, as revisions do not support trashing.' ), ), ), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); } /** * Gets the parent post, if the ID is valid. * * @since 6.4.0 * * @param int $parent_post_id Supplied ID. * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise. */ protected function get_parent( $parent_post_id ) { $template = get_block_template( $parent_post_id, $this->parent_post_type ); if ( ! $template ) { return new WP_Error( 'rest_post_invalid_parent', __( 'Invalid template parent ID.' ), array( 'status' => 404 ) ); } return get_post( $template->wp_id ); } /** * Prepares the item for the REST response. * * @since 6.4.0 * * @param WP_Post $item Post revision object. * @param WP_REST_Request $request Request object. * @return WP_REST_Response Response object. */ public function prepare_item_for_response( $item, $request ) { $template = _build_block_template_result_from_post( $item ); $response = $this->parent_controller->prepare_item_for_response( $template, $request ); $fields = $this->get_fields_for_response( $request ); $data = $response->get_data(); if ( in_array( 'parent', $fields, true ) ) { $data['parent'] = (int) $item->post_parent; } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $data = $this->filter_response_by_context( $data, $context ); // Wrap the data in a response object. $response = new WP_REST_Response( $data ); if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) { $links = $this->prepare_links( $template ); $response->add_links( $links ); } return $response; } /** * Checks if a given request has access to delete a revision. * * @since 6.4.0 * * @param WP_REST_Request $request Full details about the request. * @return true|WP_Error True if the request has access to delete the item, WP_Error object otherwise. */ public function delete_item_permissions_check( $request ) { $parent = $this->get_parent( $request['parent'] ); if ( is_wp_error( $parent ) ) { return $parent; } if ( ! current_user_can( 'delete_post', $parent->ID ) ) { return new WP_Error( 'rest_cannot_delete', __( 'Sorry, you are not allowed to delete revisions of this post.' ), array( 'status' => rest_authorization_required_code() ) ); } $revision = $this->get_revision( $request['id'] ); if ( is_wp_error( $revision ) ) { return $revision; } if ( ! current_user_can( 'edit_theme_options' ) ) { return new WP_Error( 'rest_cannot_delete', __( 'Sorry, you are not allowed to delete this revision.' ), array( 'status' => rest_authorization_required_code() ) ); } return true; } /** * Prepares links for the request. * * @since 6.4.0 * * @param WP_Block_Template $template Template. * @return array Links for the given post. */ protected function prepare_links( $template ) { $links = array( 'self' => array( 'href' => rest_url( sprintf( '/%s/%s/%s/%s/%d', $this->namespace, $this->parent_base, $template->id, $this->rest_base, $template->wp_id ) ), ), 'parent' => array( 'href' => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->parent_base, $template->id ) ), ), ); return $links; } /** * Retrieves the item's schema, conforming to JSON Schema. * * @since 6.4.0 * * @return array Item schema data. */ public function get_item_schema() { if ( $this->schema ) { return $this->add_additional_fields_schema( $this->schema ); } $schema = $this->parent_controller->get_item_schema(); $schema['properties']['parent'] = array( 'description' => __( 'The ID for the parent of the revision.' ), 'type' => 'integer', 'context' => array( 'view', 'edit', 'embed' ), ); $this->schema = $schema; return $this->add_additional_fields_schema( $this->schema ); } }