public ActionResult AddToOrder(OrderSingleModel model)
        {
            if (ModelState.IsValid == true)
            {
                
                Dictionary<int, int> currentOrder;
                if (Session["Order"] == null)
                {
                    Session["Order"] = new Dictionary<int, int>();
                }

                currentOrder = (Dictionary<int, int>) Session["Order"];

                if (currentOrder.ContainsKey(model.Matratt.MatrattID))
                {
                    currentOrder[model.Matratt.MatrattID] += model.Amount;
                }
                else
                {
                    currentOrder.Add(model.Matratt.MatrattID, model.Amount);
                }

                return RedirectToAction("Index", "Menu");
            }
            else
            {
                return View(model);
            }
        }
 //Test na elegancje
 public ActionResult AddToOrder(int id)
 {
     int matId = id;
     Matratt matratt;
     using (PizzaConnection db = new PizzaConnection())
     {
         matratt = db.Matratts.SingleOrDefault(p => p.MatrattID == matId);
     }
     OrderSingleModel orderSingleModel = new OrderSingleModel();
     orderSingleModel.Matratt = matratt;
     return View(orderSingleModel);
 }