protected function buildDomainObject($row)
 {
     $comment = new Comment();
     $comment->setId($row['com_id']);
     $comment->setContent($row['com_content']);
     if (array_key_exists('tacos_id', $row)) {
         // Find and set the associated article
         $tacosId = $row['tacos_id'];
         $tacos = $this->tacosDAO->find($tacosId);
         $comment->setTacos($tacos);
     }
     if (array_key_exists('usr_id', $row)) {
         // Find and set the associated author
         $userId = $row['usr_id'];
         $user = $this->userDAO->find($userId);
         $comment->setAuthor($user);
     }
     return $comment;
 }