Question

所以我正在开发一个电子商务应用程序（与在线订购食品有关），目前我可以在订单中添加商品，但不能添加多个商品。我真的不明白这是怎么回事。在我看来，

def show_item(request,id):
    # need to evaluate the HTTP method
    if request.method == 'POST'
        a = Item.objects.get(pk=id)
        form = PartialOrderItemForm(request.POST,instance=a)
        # check validation of posted data
        if form.is_valid():
            order.add_to_order(request,a)
            # if test cookie worked, get rid of it
            if request.session.test_cookie_worked():
                request.session.delete_test_cookie()
            url =urlresolvers.reverse('order_index')
            # redirect to order page
            return HttpResponseRedirect(url)
    else:
        form = PartialOrderItemForm()
    request.session.set_test_cookie()
    context={
        'form':form,


    }
    return render_to_response('item.html',context,context_instance=RequestContext(request))

验证表单后，视图调用此方法，该方法负责添加项目

def add_to_order(request,obj):  
    postdata = request.POST.copy()
    #get quantity added, return 0 if empty
    quantity = postdata.get('quantity',0)
    # fetch the item or return  missing page error_message
    i = get_object_or_404(Item,pk=obj.id)
    i.orderitem_set.all()
    # get items in order
    order_items = get_order_items(request)
    item_in_orders = False
    # check to see if item is already in order
    for order_item in order_items:
        if order_item.item.id == i.id:
            #update the quantity if found
            order_item.augment_quantity(quantity)
            item_in_orders = True
    if not item_in_orders:
        # creat and save a new order item
        oi = OrderItem()
        oi.order_id = _order_id(request)
        oi.quantity = quantity
        oi.item = i
        oi.save()

这是我在模板中的表单..

<form method="post" action=".">
      {% csrf_token %}
       {{ form.as_p }}
      <br />
      <input type="submit" id="submit_order" value="Add To Order" name="submit">
 </form>

关于我应该怎么做的任何建议。

Answer 1

问题出在我的缩进上，只能用pdb找到它。 pdb是真正的交易

如何在订单/购物车中添加多个商品？

1 个答案: