Вывод объявлений в случайном порядке - AdsManager

function getFilterOrder($order,$orderdir = 'DESC')
    {
	    if ($order != 0)
		{
			$this->_db->setQuery( "SELECT f.name,f.sort_direction,f.type FROM #__adsmanager_fields AS f WHERE f.fieldid=".(int)$order." AND f.published = 1" );
			$sort = $this->_db->loadObject();
			if ($sort == null) {
				$filter_order = "a.date_created DESC ,a.id ";
			} else if (($sort->type == "number")||($sort->type == "price")) {
				$filter_order = "a.".$sort->name." * 1";
			}
			else {
				$filter_order = "a.".$sort->name;
			}
		}
		else 
		{
			//a.ordering DESC TODO
			//$filter_order = "a.ordering DESC, a.date_created ".$orderdir." ,a.id ";
            $filter_order = "a.date_created ".$orderdir." ,a.id ";
		}
		return $filter_order;
    }