/** * Retrieve object using using composite pkey values. * @param int $id * @param int $id_eleve * @param int $num_periode * @param int $id_groupe * @param PropelPDO $con * @return CreditEcts */ public static function retrieveByPK($id, $id_eleve, $num_periode, $id_groupe, PropelPDO $con = null) { $_instancePoolKey = serialize(array((string) $id, (string) $id_eleve, (string) $num_periode, (string) $id_groupe)); if (null !== ($obj = CreditEctsPeer::getInstanceFromPool($_instancePoolKey))) { return $obj; } if ($con === null) { $con = Propel::getConnection(CreditEctsPeer::DATABASE_NAME, Propel::CONNECTION_READ); } $criteria = new Criteria(CreditEctsPeer::DATABASE_NAME); $criteria->add(CreditEctsPeer::ID, $id); $criteria->add(CreditEctsPeer::ID_ELEVE, $id_eleve); $criteria->add(CreditEctsPeer::NUM_PERIODE, $num_periode); $criteria->add(CreditEctsPeer::ID_GROUPE, $id_groupe); $v = CreditEctsPeer::doSelect($criteria, $con); return !empty($v) ? $v[0] : null; }