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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 |
---|---|
2472 |
|
2473 | /** |
2474 | * Filters the LIMIT clause of the comments feed query before sending. |
2475 | * |
2476 | * @since 2.8.0 |
2477 | * |
2478 | * @param string $climits The JOIN clause of the query. |
2479 | * @param WP_Query &$this The WP_Query instance (passed by reference). |
2480 | */ |
2481 | $climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) ); |
2482 | } |
2483 | $cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : ''; |
2484 | $corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : ''; |
2485 |
|
2486 | $comments = (array) $wpdb->get_results("SELECT $distinct {$wpdb->comments}.* FROM {$wpdb->comments} $cjoin $cwhere $cgroupby $corderby $climits"); |
2487 | // Convert to WP_Comment |
2488 | $this->comments = array_map( 'get_comment', $comments ); |
2489 | $this->comment_count = count($this->comments); |
2490 |
|
Line | Code |
2875 | /** This filter is documented in wp-includes/query.php */ |
2876 | $cgroupby = apply_filters_ref_array( 'comment_feed_groupby', array( '', &$this ) ); |
2877 | $cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : ''; |
2878 |
|
2879 | /** This filter is documented in wp-includes/query.php */ |
2880 | $corderby = apply_filters_ref_array( 'comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) ); |
2881 | $corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : ''; |
2882 |
|
2883 | /** This filter is documented in wp-includes/query.php */ |
2884 | $climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) ); |
2885 |
|
2886 | $comments_request = "SELECT {$wpdb->comments}.* FROM {$wpdb->comments} $cjoin $cwhere $cgroupby $corderby $climits"; |
2887 | $comments = $wpdb->get_results($comments_request); |
2888 | // Convert to WP_Comment |
2889 | $this->comments = array_map( 'get_comment', $comments ); |
2890 | $this->comment_count = count($this->comments); |
2891 | } |
2892 |
|
2893 | // Check post status to determine if post should be displayed. |