public ActionResult EditOrder(EditOrderViewModel model)
{
GetOrderById_Result CurOrder = new HotelConnection().GetOrderById(model.ID).FirstOrDefault();
if (ModelState.IsValid)
{
List <int> UnAvailableRooms = _context.GetOrders().Where(order => ((order.ID != model.ID) && !order.IsCancelled && !(order.FromDate >= model.ToDate || order.ToDate <= model.FromDate))).Select(r => r.RoomId).ToList();
HashSet <int> UnAvailableRoomIds = new HashSet <int>(UnAvailableRooms);
if (UnAvailableRoomIds.Contains(model.RoomId))
{
ModelState.AddModelError("", "Room not available at designated date range!");
return(View(model));
}
else
{
_context.UpdateExistingOrder(model.ID, model.UserId, model.RoomId, model.FromDate, model.ToDate, model.IsCancelled, model.TotalCost);
}
return(RedirectToAction("ManageOrders"));
}
PopulateUserDropDownList(CurOrder.UserId);
PopulateRoomDropDownList(CurOrder.RoomId);
return(View(model));
}