public IList<BasketItem> FindBasketItemsByPayment(Int32 paymentId)
        {
            IList<BasketItem> items;

            items = new List<BasketItem>();
            using (BookMarketDbContext db = new BookMarketDbContext())
            {
                foreach (var entry in db.FindBasketItemsByPayment(paymentId))
                    items.Add(entry);
            }

            return items;
        }