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Refactor Reusable Blocks controller to use WP_REST_Posts_Controller
We can remove a lot of code by subclassing WP_REST_Posts_Controller, which gives us methods for creating, reading, updating and deleting posts (in this case, blocks) for free. This also adds support for DELETEing a block to the API, and renames the 'name' field to 'title'.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| <?php | ||
| /** | ||
| * Reusable Blocks REST API: WP_REST_Blocks_Controller class | ||
| * | ||
| * @package gutenberg | ||
| * @since 0.10.0 | ||
| */ | ||
|
|
||
| /** | ||
| * Controller which provides a REST endpoint for Gutenberg to read, create, | ||
| * edit and delete reusable blocks. Blocks are stored as posts with the | ||
| * wp_block post type. | ||
| * | ||
| * @since 0.10.0 | ||
| * | ||
| * @see WP_REST_Controller | ||
| */ | ||
| class WP_REST_Blocks_Controller extends WP_REST_Posts_Controller { | ||
| /** | ||
| * Given an update or create request, build the post object that is saved to | ||
| * the database. | ||
| * | ||
| * @since 1.10.0 | ||
| * | ||
| * @param WP_REST_Request $request Request object. | ||
| * @return stdClass|WP_Error Post object or WP_Error. | ||
| */ | ||
| protected function prepare_item_for_database( $request ) { | ||
| $prepared_post = new stdClass; | ||
|
|
||
| if ( isset( $request['id'] ) ) { | ||
| $existing_post = $this->get_post( $request['id'] ); | ||
| if ( is_wp_error( $existing_post ) ) { | ||
| return $existing_post; | ||
| } | ||
|
|
||
| $prepared_post->ID = $existing_post->ID; | ||
| } | ||
|
|
||
| $prepared_post->post_title = $request['title']; | ||
| $prepared_post->post_content = $request['content']; | ||
| $prepared_post->post_type = $this->post_type; | ||
| $prepared_post->post_status = 'publish'; | ||
|
|
||
| return apply_filters( "rest_pre_insert_{$this->post_type}", $prepared_post, $request ); | ||
| } | ||
|
|
||
| /** | ||
| * Given a post from the database, build the array that is returned from an | ||
| * API response. | ||
| * | ||
| * @since 1.10.0 | ||
| * | ||
| * @param WP_Post $post Post object. | ||
| * @param WP_REST_Request $request Request object. | ||
| * @return WP_REST_Response Response object. | ||
| */ | ||
| public function prepare_item_for_response( $post, $request ) { | ||
| $data = array( | ||
| 'id' => $post->ID, | ||
| 'title' => $post->post_title, | ||
| 'content' => $post->post_content, | ||
| ); | ||
|
|
||
| $response = rest_ensure_response( $data ); | ||
|
|
||
| return apply_filters( "rest_prepare_{$this->post_type}", $response, $post, $request ); | ||
| } | ||
|
|
||
| /** | ||
| * Handle a DELETE request. | ||
| * | ||
| * @since 1.10.0 | ||
| * | ||
| * @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 delete_item( $request ) { | ||
| // Always hard-delete a block. | ||
| $request->set_param( 'force', true ); | ||
|
|
||
| return parent::delete_item( $request ); | ||
| } | ||
|
|
||
| /** | ||
| * Builds the block's schema, conforming to JSON Schema. | ||
| * | ||
| * @since 1.10.0 | ||
| * | ||
| * @return array Item schema data. | ||
| */ | ||
| public function get_item_schema() { | ||
| return array( | ||
| '$schema' => 'http://json-schema.org/schema#', | ||
| 'title' => $this->post_type, | ||
| 'type' => 'object', | ||
| 'properties' => array( | ||
| 'id' => array( | ||
| 'description' => __( 'Unique identifier for the block.', 'gutenberg' ), | ||
| 'type' => 'integer', | ||
| 'readonly' => true, | ||
| ), | ||
| 'title' => array( | ||
| 'description' => __( 'The block\'s title.', 'gutenberg' ), | ||
| 'type' => 'string', | ||
| 'required' => true, | ||
| ), | ||
| 'content' => array( | ||
| 'description' => __( 'The block\'s HTML content.', 'gutenberg' ), | ||
| 'type' => 'string', | ||
| 'required' => true, | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
| } |
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