public void Delete(int orderId) { Order order = _context.Orders.Include(o => o.OrderDetails).FirstOrDefault(o => o.Id == orderId); if (order != null) { _context.Entry(order).State = EntityState.Deleted; _context.SaveChanges(); } }
public string Add(CartItemDto dto) { if (dto.Quantity <= 0) { dto.Quantity = 1; } var product = _context.Products.FirstOrDefault(p => p.Id == dto.ProductId); if (product == null) { throw new KeyNotFoundException($"The product with ID={dto.ProductId} was not found."); } CartItem cartItem = null; Guid x; if (!Guid.TryParse(dto.CartId, out x)) { dto.CartId = Guid.NewGuid().ToString(); } else { cartItem = _context.CartItems.FirstOrDefault(c => c.CartId == dto.CartId && c.ProductId == dto.ProductId); } if (cartItem == null) { // create new cartItem = new CartItem { Id = Guid.NewGuid().ToString(), CartId = dto.CartId, ProductId = dto.ProductId, Quantity = dto.Quantity, Created = DateTime.Now }; _context.CartItems.Add(cartItem); _context.SaveChanges(); } else { cartItem.Quantity = dto.Quantity; _context.Entry(cartItem).Property("Quantity").IsModified = true; _context.SaveChanges(); } return(cartItem.CartId); }