Seat Reserving system - asp.net-mvc

Question

the Image shows how my tables are setup
Update
I have a working reserve seat and add to booking table now.
//
// POST: /Home/CreateBooking
public ActionResult CreateBooking(String id, DateTime date, DateTime time)
{
ViewData["username"] = User.Identity.Name;
ViewData["performanceDate"] = date;
ViewData["Venue"] = id;
BookingCreate model = new BookingCreate();
model.Seats = (from c in _db.Seat
where c.venue == id
select c);
return this.View(model);
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult CreateBooking(BookingCreate bookingCreate, IList<String> seatNumber)
{
Customer theCustomer
= (from c in _db.Customer
select c).First<Customer>(c => c.username == bookingCreate.customer);
//performance details for the performance selected by the user
Performance thePerformance
= (from p in _db.Performance
select p).FirstOrDefault<Performance>(p => p.performanceDate == bookingCreate.performanceDate || p.performanceTime == bookingCreate.performanceTime || p.venue == bookingCreate.venue);
//performance details for the performance selected by the user
Performance seatbooking
= (from p in _db.Performance
select p).FirstOrDefault<Performance>(p => p.performanceDate == bookingCreate.performanceDate || p.performanceTime == bookingCreate.performanceTime || p.venue == bookingCreate.venue);
var now = DateTime.UtcNow;
var bookingToCreate = new Booking();
bookingToCreate.bookingDate = now;
bookingToCreate.bookingTime = now;
bookingToCreate.bookingType = "Web";
bookingToCreate.collect = true;
bookingToCreate.Customer = theCustomer;
bookingToCreate.Performance = thePerformance;
_db.AddToBooking(bookingToCreate);
_db.SaveChanges();
var bookingnumber = (from p in _db.Booking
select p.bookingNo);
foreach (var displaySeat in seatNumber)
{
Seat theseat
= (from c in _db.Seat
select c).FirstOrDefault<Seat>(c => c.seatNumber == displaySeat);
var seatBooking = new SeatBooking();
seatBooking.Booking = bookingToCreate;
seatBooking.Seat = theseat;
_db.AddToSeatBooking(seatBooking);
_db.SaveChanges();
}
return RedirectToAction("ShowsIndex");
}
The code ensures that the correct venue's seats are displayed and that the logged in user and selected performance is chosen.
What i am stuck with is..
I am currently outputting the seats as checkboxes
with
BookingCreate model = new BookingCreate();
model.Seats = (from c in _db.Seat
where c.venue == id
select c);
But I would like for the checkboxes to show what seat number they relate to (at the moment they are just a blank checkbox)
And also how to stop showing seats that have been booked to stop duplication.
Thanks

Answer 1

I would do it this way (providing there are surrogate primary keys Customer.Id and Performance.Id)
public class BookingToCreateVM
{
public int BookingNo{get; set;}
//..etc - all necessary booking fields
public Guid UserId{get; set;}
public Guid PerformanceId{get; set;}
//data for something like dropdowns in view
public IList<Customer> Users{get; set;}
public IList<Performance> Performances{get; set;}
}
and the controller action
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult CreateBooking(BookingToCreateVM bookingToCreateVM)
{
Customer theCustomer
= (from c in _db.Customer
select c).Single<Customer>(c=>c.Id == bookingToCreateVM.UserId);
Performance thePerformance
= (from p in _db.Performance
select p).Single<Performance>(p=> p.Id == bookingToCreateVM.PerformanceId);
var bookingToCreate = new Booking();
bookingToCreate.BookingNo= bookingToCreateVM.BookingNo;
//..etc - initialize all necessary fields
bookingToCreate.Customer = theCustomer;
bookingToCreate.Performance = thePerformance;
_db.AddToBooking(bookingToCreate);
_db.SaveChanges();
return RedirectToAction("ListBookings");
}