/**
  * get the files of the release.
  *
  * @param int $relase_id the ID of the release the files belong to
  */
 function &getFRSFilesFromDb($release_id)
 {
     $_id = (int) $release_id;
     $dao =& $this->_getFRSFileDao();
     $dar = $dao->searchByReleaseId($_id);
     $files = array();
     if (!$dar->isError() && $dar->valid()) {
         while ($dar->valid()) {
             $data_array =& $dar->current();
             $files[] = FRSFileFactory::getFRSFileFromArray($data_array);
             $dar->next();
         }
     }
     return $files;
 }