/**
* Retrieve object using using composite pkey values.
* @param int $person_id
@param int $role_id
* @param PropelPDO $con
* @return PersonRole
*/
public static function retrieveByPK($person_id, $role_id, PropelPDO $con = null)
{
$key = serialize(array((string) $person_id, (string) $role_id));
if (null !== ($obj = PersonRolePeer::getInstanceFromPool($key))) {
return $obj;
}
if ($con === null) {
$con = Propel::getConnection(PersonRolePeer::DATABASE_NAME, Propel::CONNECTION_READ);
}
$criteria = new Criteria(PersonRolePeer::DATABASE_NAME);
$criteria->add(PersonRolePeer::PERSON_ID, $person_id);
$criteria->add(PersonRolePeer::ROLE_ID, $role_id);
$v = PersonRolePeer::doSelect($criteria, $con);
return !empty($v) ? $v[0] : null;
}