public ActionResult RemoveFlavor(int id, int joinId)
        {
            FlavorFood joinEntry = _db.FlavorFood.First(entry => entry.FlavorFoodId == joinId);

            _db.FlavorFood.Remove(joinEntry);
            _db.SaveChanges();
            return(RedirectToAction("Details", new { id = id }));
        }
        public ActionResult AddFlavor(Food food, int flavorId)
        {
            Flavor flavor = _db.Flavors.First(f => f.FlavorId == flavorId);

            try
            {
                FlavorFood join = _db.FlavorFood
                                  .Where(entry => entry.FoodId == food.FoodId)
                                  .First(entry => entry.FlavorId == flavorId);
            }
            catch
            {
                _db.FlavorFood.Add(new FlavorFood()
                {
                    FlavorId = flavorId, FoodId = food.FoodId
                });
                _db.SaveChanges();
            }
            return(RedirectToAction("Details", new { id = food.FoodId }));
        }