applyOrder: function(qb, orderParams) {
        switch (orderParams.sort_by) {
            case 'company':
                qb.orderBy('companies.company_name', orderParams.order);
                break;
            case 'division':
                qb.leftJoin('divisions', 'divisions.division_id', 'cars.division_id');
                qb.orderBy('divisions.division_name', orderParams.order);
                break;
            case 'device.simcard':
                qb.leftJoin('sims', 'sims.sim_id', 'devices.sim_id');
                qb.orderBy('sims.sim_number', orderParams.order);
                break;
            default:
                SMFModel.prototype.applyOrder.apply(this, arguments);
        }
    },