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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 |
|---|---|
| 2132 | foreach ( $comments as $comment ) |
| 2133 | $statuses[$comment->comment_ID] = $comment->comment_approved; |
| 2134 | add_post_meta($post_id, '_wp_trash_meta_comments_status', $statuses); |
| 2135 | |
| 2136 | // Set status for all comments to post-trashed |
| 2137 | $result = $wpdb->update($wpdb->comments, array('comment_approved' => 'post-trashed'), array('comment_post_ID' => $post_id)); |
| 2138 | |
| 2139 | clean_comment_cache( array_keys($statuses) ); |
| 2140 | |
| 2141 | do_action('trashed_post_comments', $post_id, $statuses); |
| 2142 | |
| 2143 | return $result; |
| 2144 | } |
| 2145 | |
| 2146 | /** |
| 2147 | * Restore comments for a post from the trash |
| 2148 | * |
| 2149 | * @since 2.9.0 |
| 2150 | * @uses do_action() on 'untrash_post_comments' before trashing |