public ActionResult MakeBooking(BookingViewModel model, string apartmentClass)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    model.UserId = User.Identity.GetUserId();

                    if (apartmentClass == null)
                    {
                        ModelState.AddModelError("Empty class", "Empty apartment class field");

                        return(View(model));
                    }
                    else if (apartmentClass == "Luxury")
                    {
                        model.ApartmentClassId = 1;
                    }
                    else if (apartmentClass == "Comfort")
                    {
                        model.ApartmentClassId = 2;
                    }
                    else if (apartmentClass == "Economy")
                    {
                        model.ApartmentClassId = 3;
                    }

                    var apartments = Mapper.Map <IEnumerable <ApartmentDTO>, IEnumerable <ApartmentViewModel> >(apartmentService.GetApartmentsForPickForBooking(Mapper.Map <BookingViewModel, BookingDTO>(model)));

                    if (apartments.Count(a => a.Id > 0) == 0)
                    {
                        ViewBag.Error = "No free apartments for picked date";

                        return(View());
                    }

                    BookingContainer.Date = model.DateOfArrival;
                    BookingContainer.Days = model.DaysOfArrival;

                    return(PartialView("ApartmentsPartial", apartments));
                }
            }
            catch (ValidationException ex)
            {
                ModelState.AddModelError(ex.Property, ex.Message);
            }

            return(View(model));
        }