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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 |
|---|---|
| 1337 | * - `rest_pre_insert_page` |
| 1338 | * - `rest_pre_insert_attachment` |
| 1339 | * |
| 1340 | * @since 4.7.0 |
| 1341 | * |
| 1342 | * @param stdClass $prepared_post An object representing a single post prepared |
| 1343 | * for inserting or updating the database. |
| 1344 | * @param WP_REST_Request $request Request object. |
| 1345 | */ |
| 1346 | return apply_filters( "rest_pre_insert_{$this->post_type}", $prepared_post, $request ); |
| 1347 | |
| 1348 | } |
| 1349 | |
| 1350 | /** |
| 1351 | * Checks whether the status is valid for the given post. |
| 1352 | * |
| 1353 | * Allows for sending an update request with the current status, even if that status would not be acceptable. |
| 1354 | * |
| 1355 | * @since 5.6.0 |