extbase query

        if ($travelTypeUid || $branchUid || $countryUid || $cityUid) {
            if ($travelTypeUid) {
                $logicAnd[] = $query->equals('travelType.uid', $travelTypeUid);
            }
            if ($branch) {
                $logicAnd[] = $query->equals('branch.uid', $branchUid);
            }
            if ($country) {
                $logicAnd[] = $query->equals('city.country', $countryUid);
            }
            if ($city) {
                $logicAnd[] = $query->equals('city.uid', $cityUid);
            }
        } else {
            return $query->execute();
        }

        $query->matching($query->logicalAnd($logicAnd));