public function save(Default_Model_Transaction $trans)
 {
     $data = array('user_id' => $trans->getUserId(), 'account_id' => $trans->getAccountId(), 'amount' => $trans->getAmount(), 'user_id' => 1);
     if (null === ($id = $account->getId())) {
         unset($data['id']);
         $this->getDbTable()->insert($data);
     } else {
         $this->getDbTable()->update($data, array('id = ?' => $id));
     }
 }