public ActionResult Index(BookingFilterDTO filter)
        {
            ViewBag.Garages = garageRepository.FindAllAsQueryable();
            ViewBag.Van     = filter.Van;
            ViewBag.Date    = filter.Date;
            List <DbBooking> bookings = GetFilteredBookings(filter);

            return(View(bookings.Select(i => new BookingDTO(i)).ToList()));
        }
        // TODO move
        private List <DbBooking> GetFilteredBookings(BookingFilterDTO filter)
        {
            var bookings = bookingRepository.FindAllAsQueryable(i => i.GarageId == filter.GarageId);

            if (filter.Van)
            {
                bookings = bookings.Where(i => i.Type != Models.Enums.VehicleType.Car);
            }
            else
            {
                bookings = bookings.Where(i => i.Type == Models.Enums.VehicleType.Car);
            }

            if (filter.Date != null)
            {
                bookings = bookings.Where(i => i.StartDateTime.Date == filter.Date.Value.Date);
            }

            return(bookings.OrderByDescending(i => i.StartDateTime).ToList());
        }