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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 |
|---|---|
| 470 | * Fires after a revision is deleted via the REST API. |
| 471 | * |
| 472 | * @since 4.7.0 |
| 473 | * |
| 474 | * @param WP_Post|false|null $result The revision object (if it was deleted or moved to the Trash successfully) |
| 475 | * or false or null (failure). If the revision was moved to the Trash, $result represents |
| 476 | * its new state; if it was deleted, $result represents its state before deletion. |
| 477 | * @param WP_REST_Request $request The request sent to the API. |
| 478 | */ |
| 479 | do_action( 'rest_delete_revision', $result, $request ); |
| 480 | |
| 481 | if ( ! $result ) { |
| 482 | return new WP_Error( |
| 483 | 'rest_cannot_delete', |
| 484 | __( 'The post cannot be deleted.' ), |
| 485 | array( 'status' => 500 ) |
| 486 | ); |
| 487 | } |
| 488 | |