public function getGradeConversionTemplate($con = null) { include_once 'lib/model/om/BaseGradeConversionTemplatePeer.php'; if ($this->aGradeConversionTemplate === null && $this->grade_conversion_template_id !== null) { $this->aGradeConversionTemplate = GradeConversionTemplatePeer::retrieveByPK($this->grade_conversion_template_id, $con); } return $this->aGradeConversionTemplate; }