/**
* Applies additional dependencies special for sql search criteria.
*
* @return CDataProvider data provider
*
* @see SearchModel::fetch()
*/
public function fetch()
{
$dataProvider = parent::fetch();
if ($dataProvider instanceof CActiveDataProvider) {
$criteria = $dataProvider->criteria;
if (empty($criteria->order)) {
$this->applySort($criteria);
}
}
return $dataProvider;
}