public static function retrieveByPK($id, $user_id, $task_id, $con = null)
{
if ($con === null) {
$con = Propel::getConnection(self::DATABASE_NAME);
}
$criteria = new Criteria();
$criteria->add(UserTaskPeer::ID, $id);
$criteria->add(UserTaskPeer::USER_ID, $user_id);
$criteria->add(UserTaskPeer::TASK_ID, $task_id);
$v = UserTaskPeer::doSelect($criteria, $con);
return !empty($v) ? $v[0] : null;
}
