Question

我正在尝试声明一个formset：

def linkurl(request):
  UrlFormSet = formset_factory(UrlForm)
  if request.method == 'POST':
    formset = UrlFormSet(data=request.POST, instance=Link())
    if formset.is_valid():
      formset.instance.user = request.user
      formset.save()
      return redirect('home')
    else:
      formset = UrlFormSet()
  user_links_count = Link.objects.filter(user=request.user).count()
  return render_to_response(request, "addurl.html", {'formset': formset, 'linkscount': user_links_count})

但它总是打印我：在赋值之前引用的局部变量'formset'。我不知道是什么问题，有人可以帮帮我吗？谢谢！

Answer 1

你有错误的缩进else块，向左移动一步：

if request.method == 'POST':
    formset = UrlFormSet(data=request.POST, instance=Link())
    # code
else: # this else block in your code should be moved left
    formset = UrlFormSet()

Django 1.6 Formset的错误：“在分配之前引用”

1 个答案: