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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
209 | if ( ! $wpdb->query("DELETE FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1") ) |
210 | return false; |
211 |
|
212 | $post_id = $comment->comment_post_ID; |
213 | if ( $post_id && $comment->comment_approved == 1 ) { |
214 | $count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = '$post_id' AND comment_approved = '1'"); |
215 | $wpdb->query( "UPDATE $wpdb->posts SET comment_count = $count WHERE ID = '$post_id'" ); |
216 | } |
217 |
|
218 | do_action('wp_set_comment_status', $comment_id, 'delete'); |
219 | return true; |
220 | } |
221 |
|
222 | function get_comments_number( $post_id = 0 ) { |
223 | global $wpdb, $comment_count_cache, $id; |
224 | $post_id = (int) $post_id; |
225 |
|
226 | if ( !$post_id ) |
227 | $post_id = (int) $id; |
Line | Code |
787 | break; |
788 | case 'delete': |
789 | return wp_delete_comment($comment_id); |
790 | break; |
791 | default: |
792 | return false; |
793 | } |
794 | |
795 | if ($wpdb->query($query)) { |
796 | do_action('wp_set_comment_status', $comment_id, $comment_status); |
797 | |
798 | $comment = get_comment($comment_id); |
799 | $comment_post_ID = $comment->comment_post_ID; |
800 | $c = $wpdb->get_row( "SELECT count(*) as c FROM {$wpdb->comments} WHERE comment_post_ID = '$comment_post_ID' AND comment_approved = '1'" ); |
801 | if( is_object( $c ) ) |
802 | $wpdb->query( "UPDATE $wpdb->posts SET comment_count = '$c->c' WHERE ID = '$comment_post_ID'" ); |
803 | return true; |
804 | } else { |
805 | return false; |