posts_fields_request хук-фильтр . WP 2.5.0

Filters the SELECT clause of the query.

For use by caching plugins.

Использование

add_filter( 'posts_fields_request', 'filter_function_name_8409', 10, 2 );
function filter_function_name_8409( $fields, $this ){
	// filter...

	return $fields;
}

$fields(строка)

The SELECT clause of the query.

$this(WP_Query)

The WP_Query instance (passed by reference).

Где используется хук

Код хука

...
			 * @param string   $distinct The DISTINCT clause of the query.
			 * @param WP_Query $this     The WP_Query instance (passed by reference).
			 */
			$distinct = apply_filters_ref_array( 'posts_distinct_request', array( $distinct, &$this ) );

			/**
			 * Filters the SELECT clause of the query.
			 *
			 * For use by caching plugins.
			 *
			 * @since 2.5.0
			 *
			 * @param string   $fields The SELECT clause of the query.
			 * @param WP_Query $this   The WP_Query instance (passed by reference).
			 */
			$fields = apply_filters_ref_array( 'posts_fields_request', array( $fields, &$this ) );

			/**
			 * Filters the LIMIT clause of the query.
			 *
			 * For use by caching plugins.
			 *
			 * @since 2.5.0
			 *
			 * @param string   $limits The LIMIT clause of the query.
			 * @param WP_Query $this   The WP_Query instance (passed by reference).
			 */
			$limits = apply_filters_ref_array( 'post_limits_request', array( $limits, &$this ) );

			/**
			 * Filters all query clauses at once, for convenience.
...