python - Django 属性错误 : 'str' object has no attribute 'model'

Question

我有下面的表格；

class RemoveMemberForm(Form):
    member = forms.ModelChoiceField(queryset="",
                                  empty_label='Choose a Member',
    )

以及以下观点；

class StationHome(View):
    def get(self, request, pk):
        station = Station.objects.get(pk=pk)
        channels = Channel.objects.filter(station=station)
        members = station.members.all()
        form1 = AddMemberForm()
        form2 = RemoveMemberForm()
        form2.fields['member'].queryset = station.members.all()
        return render(request, 
                      "home_station.html",
                      {"station":station,
                       "form1":form1,
                       "form2":form2,
                       "channels":channels,
                       "members":members,
                   },
                  )

class MemberRemove(View):
    def post(self, request, pk):
        form = RemoveMemberForm(request.POST)
        if form.is_valid():
            Station.objects.get(pk=pk).members.remove(
                form.cleaned_data['member']
            )
            return HttpResponseRedirect(reverse("home_station",
                                        kwargs={'pk':pk},
                                    )
                            )

我想做的是让第二个 View 删除选定的成员并重定向到第一个 View 。但是相反，我卡在了 AttributeError at/station/2/removemember，对应于第二个 View 的 URL，'str' object has no attribute 'model'

Answer 1

这是因为您指定了:

queryset=""

在你的表单中。请改用查询集(例如 queryset=Member.objects.all())。