Django 如何解决'；型号'；对象没有属性'；对象'；用于表单集处理的UpdateView？

我目前正试图克服在处理表单集时遇到的许多问题。这是我的最新代码…在其他问题中，似乎formset和form_invalid（）可能存在问题。我试图简单地编辑从CreateView保存的表单集数据。在我从CreateView保存数据后，似乎数据在视图中显示得很好，但是我无法使用此数据或在不更改任何内容的情况下保存它。这个问题看起来非常相似，我试图在一定程度上使用它，但我也无法让它发挥作用

我的看法

class UpdateTeamView(LoginRequiredMixin,UpdateView):
    model = Team
    form_class = UpdateTeamForm
    template_name = 'update_team.html'

def get_context_data(self, **kwargs):
    context = super(UpdateTeamView, self).get_context_data(**kwargs)
    if self.request.POST:
        context['player_form'] = PlayerFormSet(self.request.POST)
    else:
        context['player_form'] = PlayerFormSet(instance=self.object)
    return context

def get_form_kwargs(self):
    kwargs = super(UpdateTeamView, self).get_form_kwargs()
    kwargs['user'] = self.request.user
    return kwargs

def get_object(self, queryset=None):
    return get_object_or_404(Team, id=self.request.GET.get("dropdown"))

def get(self, request, *args, **kwargs):
    dropdown=self.request.GET.get("dropdown")
    if dropdown is not None:
        if Team.objects.all().distinct():
            self.object = self.get_object()
            context = self.get_context_data(object=self.object)
            return self.render_to_response(context)
        else:
            raise Http404
    else:
        messages.add_message(self.request, messages.INFO, 'Team is required.')
        return HttpResponseRedirect(reverse('Company:update_team_by_name'))

def form_valid(self, form):
    instance = form.save()
    return super(UpdateTeamView, self).form_valid(form)

def form_invalid(self, form):    
     return self.render_to_response(
        self.get_context_data(form=form,
                              ))

def post(self, request, *args, **kwargs):
    form_class = self.get_form_class()
    form = self.get_form(form_class)
    if "cancel" in request.POST:
        return HttpResponseRedirect(reverse('Company:company_main_menu'))
    else:
        team_form = TeamForm(self.request.POST)
        player_form = UpdateSavedNewCompanyContactFormSet(self.request.POST)
        if player_form.is_valid():
            print("works")
            return HttpResponseRedirect(reverse('Team:main_menu'))
        else:
            player_form = UpdateSavedNewCompanyContactFormSet()
            print("not working")
            print(player_form.errors)
            return super(UpdateTeamView, self).form_invalid(player_form)
            

---

经过反复试验，我终于找到了解决办法

def get_context_data(self, **kwargs):
    context = super(UpdateTeamView, self).get_context_data(**kwargs)
    if self.request.POST:
        context['player_form'] = PlayerFormSet(self.request.POST, instance=self.object)
    else:
        context['player_form'] = PlayerFormSet(instance=self.object)
    return context

def get_form_kwargs(self):
    kwargs = super(UpdateTeamView, self).get_form_kwargs()
    kwargs['user'] = self.request.user
    return kwargs

def get_object(self, queryset=None):
    return get_object_or_404(UpdateTeamView, id=self.request.GET.get("dropdown"))

def form_valid(self, form):

    data = self.get_context_data()
    formset = data['company_contact_form']

    if formset.is_valid():
        self.object = form.save()
        formset.instance = self.object
    else:
        print('formset invalid:', formset.errors)

    instance = form.save()

def form_invalid(self, form, *args, **kwargs):        
    super().form_invalid()

---

我知道了。这里不需要邮寄。它造成的问题多于好处。我仍然无法让我的数据进行验证，但我现在希望以形式_valid（）更新逻辑。