public Order CreateOrder(OrderViewModel OrderModel, CartViewModel CartModel, string UserName)
{
var user = _UserManager.FindByNameAsync(UserName).Result;
using (var transaction = _db.Database.BeginTransaction())
{
var order = new Order
{
Name = OrderModel.Name,
Address = OrderModel.Address,
Phone = OrderModel.Phone,
User = user,
Date = DateTime.Now
};
_db.Orders.Add(order);
foreach (var(product_model, quantity) in CartModel.Items)
{
var product = _db.Products.FirstOrDefault(p => p.Id == product_model.Id);
if (product is null)
{
throw new InvalidOperationException($"Товар с идентификатором id:{product_model.Id} отсутствует в БД");
}
var order_item = new OrderItem
{
Order = order,
Price = product.Price,
Quantity = quantity,
Product = product
};
_db.OrderItems.Add(order_item);
}
_db.SaveChanges();
transaction.Commit();
return(order);
}
}
