comment_feed_join хук-фильтр . WP 2.2.0

Filters the JOIN clause of the comments feed query before sending.

Использование

add_filter( 'comment_feed_join', 'filter_function_name_1593', 10, 2 );
function filter_function_name_1593( $cjoin, $this ){
	// filter...

	return $cjoin;
}

$cjoin(строка)

The JOIN clause of the query.

$this(WP_Query)

The WP_Query instance (passed by reference).

Где используется хук

Код хука

...
			} else { // Other non singular e.g. front
				$cjoin = "JOIN {$wpdb->posts} ON ( {$wpdb->comments}.comment_post_ID = {$wpdb->posts}.ID )";
				$cwhere = "WHERE ( post_status = 'publish' OR ( post_status = 'inherit' AND post_type = 'attachment' ) ) AND comment_approved = '1'";
				$cgroupby = '';
			}

			if ( !$q['suppress_filters'] ) {
				/**
				 * Filters the JOIN clause of the comments feed query before sending.
				 *
				 * @since 2.2.0
				 *
				 * @param string   $cjoin The JOIN clause of the query.
				 * @param WP_Query $this The WP_Query instance (passed by reference).
				 */
				$cjoin = apply_filters_ref_array( 'comment_feed_join', array( $cjoin, &$this ) );

				/**
				 * Filters the WHERE clause of the comments feed query before sending.
				 *
				 * @since 2.2.0
				 *
				 * @param string   $cwhere The WHERE clause of the query.
				 * @param WP_Query $this   The WP_Query instance (passed by reference).
				 */
				$cwhere = apply_filters_ref_array( 'comment_feed_where', array( $cwhere, &$this ) );

				/**
				 * Filters the GROUP BY clause of the comments feed query before sending.
				 *
				 * @since 2.2.0
...

...

		if ( ! $q['suppress_filters'] ) {
			/**
			 * Filters the raw post results array, prior to status checks.
			 *
			 * @since 2.3.0
			 *
			 * @param array    $posts The post results array.
			 * @param WP_Query $this The WP_Query instance (passed by reference).
			 */
			$this->posts = apply_filters_ref_array( 'posts_results', array( $this->posts, &$this ) );
		}

		if ( !empty($this->posts) && $this->is_comment_feed && $this->is_singular ) {
			/** This filter is documented in wp-includes/query.php */
			$cjoin = apply_filters_ref_array( 'comment_feed_join', array( '', &$this ) );

			/** This filter is documented in wp-includes/query.php */
			$cwhere = apply_filters_ref_array( 'comment_feed_where', array( "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'", &$this ) );

			/** This filter is documented in wp-includes/query.php */
			$cgroupby = apply_filters_ref_array( 'comment_feed_groupby', array( '', &$this ) );
			$cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';

			/** This filter is documented in wp-includes/query.php */
			$corderby = apply_filters_ref_array( 'comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );
			$corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';

			/** This filter is documented in wp-includes/query.php */
			$climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );

...