public void AddRestaurantProduct(int id, Product prod)
{
var restProduct = new RestaurantProduct
{
Quantity = 1,
ProductId = prod.Id,
RestaurantId = id
};
var restProd = _repo.GetRestaurantProductById(prod.Id);
if (restProd != null)
{
restProd.Quantity++;
}
else
{
_repo.AddRestaurantProducts(restProduct);
}
_repo.SaveChanges();
}