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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 |
|---|---|
| 2483 | foreach ( $comments as $comment ) |
| 2484 | $statuses[$comment->comment_ID] = $comment->comment_approved; |
| 2485 | add_post_meta($post_id, '_wp_trash_meta_comments_status', $statuses); |
| 2486 | |
| 2487 | // Set status for all comments to post-trashed |
| 2488 | $result = $wpdb->update($wpdb->comments, array('comment_approved' => 'post-trashed'), array('comment_post_ID' => $post_id)); |
| 2489 | |
| 2490 | clean_comment_cache( array_keys($statuses) ); |
| 2491 | |
| 2492 | do_action('trashed_post_comments', $post_id, $statuses); |
| 2493 | |
| 2494 | return $result; |
| 2495 | } |
| 2496 | |
| 2497 | /** |
| 2498 | * Restore comments for a post from the trash |
| 2499 | * |
| 2500 | * @since 2.9.0 |
| 2501 | * @uses do_action() on 'untrash_post_comments' before trashing |