foreach ($tblCertificateSubjectAll as $tblCertificateSubject) {
                $tblSubject = $tblCertificateSubject->getServiceTblSubject();
                if($tblSubject){
                    // Grade Exists? => Add Subject to Certificate
                    if (isset($tblGradeList['Data'][$tblSubject->getAcronym()])) {