public function getAngketpmbSession($con = null) { include_once 'lib/model/om/BaseAngketpmbSessionPeer.php'; if ($this->aAngketpmbSession === null && $this->session_id !== null) { $this->aAngketpmbSession = AngketpmbSessionPeer::retrieveByPK($this->session_id, $con); } return $this->aAngketpmbSession; }