Post 使用 DJango DetailView 的请求给出错误 'MyView' 对象没有属性 'object'

Question

我正在尝试使用 Django DetailView 创建一个对象。我的代码就是这样。

class Detail(DetailView):
    model = MyModel
    template_name = 'mymodel_detail.html'

    def get_context_data(self, **kwargs):
        context = super(Detail, self).get_context_data(**kwargs)
        context['form'] = DetailForm
        return context

    def post(self, request, *args, **kwargs):
        form = DetailForm(request.POST, request.FILES)
        if form.is_valid():
            context['reply_form'] = DetailForm
            self.object = super(Detail, self).get_object()
            context['object'] = super(Detail, self).get_object()

            return self.render_to_response(request=request, template=self.get_template_names(), context=context)
        else:
            context = context = super(Detail, self).get_context_data(**kwargs)
            context['reply_form'] = form
            self.object = super(Detail, self).get_object()
            context['object'] = super(Detail, self).get_object()

            return self.render_to_response(request=request, template=self.get_template_names(), context=context)

但是这里我收到错误

'Detail' object has no attribute 'object'

我尝试在上下文实例中和自身中分配对象。但没有任何效果。

Answer 1

您在错误的 class 上调用 super：它们应该是 Detail，而不是 MessageDetail。此外，您不需要表单代码。相反，使用通用编辑视图之一（CreateView、DeleteView、FormView、UpdateView）。 DetailView 仅用于显示目的。有关通用视图的更多详细信息，请访问 http://ccbv.co.uk/

Answer 2

您继承自错误的通用视图。你需要继承自CreateView，像这样：

class CreateModel(CreateView):
  model = MyModel
  template_name = 'mymodel_detail.html'
  form_class = DetailForm
  success_url = reverse('/thanks')

  def form_valid(self, form):
     # this method is called when the form
     # is successfully validated
     # if you need to do something with
     # the database object, this is the place
     # do not use it to redirect to a success page
     # use the success_url for that
     return super(CreateModel, self).form_valid(form)

Answer 3

你在这里缺少的是你必须在调用 get_context_data().

之前将对象分配给 class 或 self

class Detail(DetailView):
    model = MyModel
    template_name = 'mymodel_detail.html'

    def get_context_data(self, **kwargs):
        context = super(Detail, self).get_context_data(**kwargs)
        context['form'] = DetailForm
        return context

    def post(self, request, *args, **kwargs):
        form = DetailForm(request.POST, request.FILES)
        if form.is_valid():
            # Write Your Logic here

            self.object = self.get_object()
            context = super(Detail, self).get_context_data(**kwargs)
            context['form'] = DetailForm
            return self.render_to_response(context=context)

        else:
            self.object = self.get_object()
            context = super(Detail, self).get_context_data(**kwargs)
            context['form'] = form
            return self.render_to_response( context=context)

并在 render_to_response() 中传递上下文即可。没有其他参数。

希望对你有用。

Answer 4

这就是我如何实现 Safrazs 答案中的代码以在我的问题模型上创建回复选项。我知道这是一个老问题，但我希望有人会发现这个有用。

class QuestionDetailView(generic.DetailView):
    model = Question
    template_name = 'forum/question.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['form'] = ReplyForm

        return context

    def post(self, request, *args, **kwargs):
        form = ReplyForm(request.POST)

        if form.is_valid():
            reply = form.save(commit=False)
            reply.creator = request.user
            reply.question = self.get_object()
            reply.save()
            self.object = self.get_object()
            context = context = super().get_context_data(**kwargs)
            context['form'] = ReplyForm

            return self.render_to_response(context=context)

        else:
            self.object = self.get_object()
            context = super().get_context_data(**kwargs)
            context['form'] = form

            return self.render_to_response(context=context)

Post 使用 DJango DetailView 的请求给出错误 'MyView' 对象没有属性 'object'

Post request with DJango DetailView give error 'MyView' object has no attribute 'object'

django

django-forms

django-views