public IHttpActionResult PostOrder(OrderViewModel order_view_model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
Order order = new Order { Customer_Id=order_view_model.Customer_Id, OrderDate=DateTime.Now };
//order.OrderDetails = new List<OrderDetail>();
Product product;
foreach (var detail in order_view_model.OrderDetails)
{
product = db.Products.Find(detail.Product_Id);
order.OrderDetails.Add(new OrderDetail { Product=product, Quantity=detail.Quantity });
}
db.Orders.Add(order);
db.SaveChanges();
return CreatedAtRoute("DefaultApi", new { id = order.Id }, order);
}
public IHttpActionResult PutOrder(int id, OrderViewModel order_view_model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
if (id != order_view_model.Id)
{
return BadRequest();
}
//把資料庫中的那筆資料讀出來
var order = db.Orders.Find(order_view_model.Id);
if (order == null)
{
return ResponseMessage(Request.CreateErrorResponse(HttpStatusCode.NotFound, "這筆資料已被刪除!"));
}
else
{
try
{
order.OrderDate = order_view_model.OrderDate;
order.Customer_Id = order_view_model.Customer_Id;
order.OrderDetails.Clear();
Product product;
foreach (var detail in order_view_model.OrderDetails)
{
product = db.Products.Find(detail.Product_Id);
order.OrderDetails.Add(new OrderDetail { Product = product, Quantity = detail.Quantity });
}
db.Entry(order).OriginalValues["Timestamp"] = Convert.FromBase64String(order_view_model.TimestampString);
db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!OrderExists(id))
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound, "這筆資料已被刪除!"));
else
throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.Conflict, "這筆資料已被其他人修改!"));// ""
}
}
return Ok(toOrderViewModel(order));
}
OrderViewModel toOrderViewModel(Order order)
{
var orderViewModel = new OrderViewModel { Id=order.Id,
Customer_Id=order.Customer_Id,
OrderDate=order.OrderDate,
TimestampString=Convert.ToBase64String(order.Timestamp) };
orderViewModel.OrderDetails = new List<OrderDetailViewModel>();
foreach (var detail in order.OrderDetails)
{
orderViewModel.OrderDetails.Add(new OrderDetailViewModel
{
Order_Id = order.Id,
Product_Id = detail.Product_Id,
ProductName = detail.Product.Name,
Quantity = detail.Quantity
});
}
return orderViewModel;
}