/**
  *
  * @param mixed $pk
  * @param string $condition
  * @param array $params
  * @return boolean 
  */
 public function deleteByPk($pk, $condition = '', $params = array())
 {
     if (CStubActiveRecord::isUnittests()) {
         return CallFactory::call($this, 'deleteByPk');
     }
     return parent::deleteByPk($pk, $condition, $params);
 }