/**
* Setter function for the default sorting direction of the Fetch
* function. Available options are RAND, ASC or DESC.
*
* @param string $direction
* The direction that entries should be sorted in, available options
* are RAND, ASC or DESC.
*/
public static function setFetchSortingDirection($direction)
{
$direction = strtoupper($direction);
if ($direction == 'RANDOM') {
$direction = 'RAND';
}
self::$_fetchSortDirection = in_array($direction, array('RAND', 'ASC', 'DESC')) ? $direction : null;
}
