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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 300 | * Fires after a revision is deleted via the REST API. |
| 301 | * |
| 302 | * @since 4.7.0 |
| 303 | * |
| 304 | * @param (mixed) $result The revision object (if it was deleted or moved to the trash successfully) |
| 305 | * or false (failure). If the revision was moved to the trash, $result represents |
| 306 | * its new state; if it was deleted, $result represents its state before deletion. |
| 307 | * @param WP_REST_Request $request The request sent to the API. |
| 308 | */ |
| 309 | do_action( 'rest_delete_revision', $result, $request ); |
| 310 | |
| 311 | if ( ! $result ) { |
| 312 | return new WP_Error( 'rest_cannot_delete', __( 'The post cannot be deleted.' ), array( 'status' => 500 ) ); |
| 313 | } |
| 314 | |
| 315 | $response = new WP_REST_Response(); |
| 316 | $response->set_data( array( 'deleted' => true, 'previous' => $previous->get_data() ) ); |
| 317 | return $response; |
| 318 | } |