/**
* Retrieve object using using composite pkey values.
* @param int $user_id
* @param int $test_id
* @param int $variant_id
* @param PropelPDO $con
* @return PcSplitTestUserResult
*/
public static function retrieveByPK($user_id, $test_id, $variant_id, PropelPDO $con = null)
{
$key = serialize(array((string) $user_id, (string) $test_id, (string) $variant_id));
if (null !== ($obj = PcSplitTestUserResultPeer::getInstanceFromPool($key))) {
return $obj;
}
if ($con === null) {
$con = Propel::getConnection(PcSplitTestUserResultPeer::DATABASE_NAME, Propel::CONNECTION_READ);
}
$criteria = new Criteria(PcSplitTestUserResultPeer::DATABASE_NAME);
$criteria->add(PcSplitTestUserResultPeer::USER_ID, $user_id);
$criteria->add(PcSplitTestUserResultPeer::TEST_ID, $test_id);
$criteria->add(PcSplitTestUserResultPeer::VARIANT_ID, $variant_id);
$v = PcSplitTestUserResultPeer::doSelect($criteria, $con);
return !empty($v) ? $v[0] : null;
}
