//MusicStoreEntities storeDB = new MusicStoreEntities();

        public ShoppingCartController(ICartRepository carts, IAlbumsRepository albums, ShoppingCartFactory shoppingCartFactory)
        {
            _carts = carts;
            _albums = albums;
            _shoppingCartFactory = shoppingCartFactory;
        }
 public CheckoutController(ShoppingCartFactory shoppingCartFactory, IOrderRepository orderRepository, IUnitOfWork unitOfWork  )
 {
     _shoppingCartFactory = shoppingCartFactory;
     _orders = orderRepository;
     _unitOfWork = unitOfWork;
 }