public static function getIisHost($partner_id, $protocol = 'http')
 {
     $partner = PartnerPeer::retrieveByPK($partner_id);
     if (!$partner || !$partner->getIisHost()) {
         return requestUtils::getIisHost($protocol);
     }
     $iisHost = $partner->getIisHost();
     $iisHost = preg_replace('/^https?/', $protocol, $iisHost);
     return $iisHost;
 }