/** * Retrieve object using using composite pkey values. * @param int $subscriber_id * @param int $subscriber_group_id * @param PropelPDO $con * @return SubscriberGroupMembership */ public static function retrieveByPK($subscriber_id, $subscriber_group_id, PropelPDO $con = null) { $_instancePoolKey = serialize(array((string) $subscriber_id, (string) $subscriber_group_id)); if (null !== ($obj = SubscriberGroupMembershipPeer::getInstanceFromPool($_instancePoolKey))) { return $obj; } if ($con === null) { $con = Propel::getConnection(SubscriberGroupMembershipPeer::DATABASE_NAME, Propel::CONNECTION_READ); } $criteria = new Criteria(SubscriberGroupMembershipPeer::DATABASE_NAME); $criteria->add(SubscriberGroupMembershipPeer::SUBSCRIBER_ID, $subscriber_id); $criteria->add(SubscriberGroupMembershipPeer::SUBSCRIBER_GROUP_ID, $subscriber_group_id); $v = SubscriberGroupMembershipPeer::doSelect($criteria, $con); return !empty($v) ? $v[0] : null; }