model/sertifikat update

function getDataListSertifikat($where,$order,$limit){
          global $db;
          $sql = "SELECT srt.*,us.username from user_sertifikat as srt  inner join user as us on
                    us.id_user=srt.pemegang_sertifikat
                    ".$where."  ".$order.$limit;
          $rs  = $db->Execute($sql);
          if(!$rs) {
            return $db->ErrorMsg();
          }
          else {
            return $rs;
          }
    }
    function getCountListSertifikat($where){
          global $db;
          $sql = "SELECT srt.id_user_sertifikat from user_sertifikat as srt  inner join user as us on
                    us.id_user=srt.pemegang_sertifikat
                    ".$where;
          $rs  = $db->Execute($sql);
          if(!$rs) {
            return $db->ErrorMsg();
          }
          else {
            return $rs->recordCount();
          }
    }