public function getrefGenRegionRelatedByParent($con = null) { include_once 'lib/model/om/BaserefGenRegionPeer.php'; if ($this->arefGenRegionRelatedByParent === null && $this->parent !== null) { $this->arefGenRegionRelatedByParent = refGenRegionPeer::retrieveByPK($this->parent, $con); } return $this->arefGenRegionRelatedByParent; }