public void EditFood(Food food)
		{
			var dbFood = _db.Foods.Find(food.Id);
			if ( dbFood != null )
			{
				_db.Entry(dbFood).CurrentValues.SetValues(food);
				_db.SaveChanges();
			}
		}
		public ActionResult Create(Food f)
		{
			if (ModelState.IsValid)
			{
				_service.AddFood(f);
				return RedirectToAction("Create");
			}

			return View(f);
		}
		public void AddFood(Food food)
		{
			_db.Foods.Add(food);
			_db.SaveChanges();
		}
		public ActionResult Edit(Food f)
		{
			_service.EditFood(f);
			return View("Details", f);
		}