示例#1
0
        /// <inheritdoc />
        public async Task <Result> AddOrder(OrderDto orderDto)
        {
            await using var transaction = await _context.Database.BeginTransactionAsync();

            try
            {
                var customer = await _context.Customers.FindAsync(orderDto.CustomerId);

                var productsQuery =
                    await _context.Products.Where(x => orderDto.ProductsId.Contains(x.Id)).ToListAsync();

                var order = new Order
                {
                    Customer   = customer ?? null,
                    Sum        = orderDto.Sum,
                    TimeAdd    = orderDto.TimeAdd,
                    TimeUpdate = orderDto.TimeUpdate
                };
                await _context.AddAsync(order);

                await _context.SaveChangesAsync();

                if (productsQuery.Count > 0)
                {
                    var products = productsQuery.Select(x => new OrderProduct
                    {
                        OrderId = order.Id, Order = order, Product = x, ProductId = x.Id
                    });

                    await _context.AddRangeAsync(products);

                    await _context.SaveChangesAsync();
                }

                transaction.Commit();
                return(Result.Ok());
            }
            catch (Exception e)
            {
                await transaction.RollbackAsync();

                throw new ApplicationException(e.InnerException.Message ?? e.Message);
            }
        }