在UpdateView中设置表单的实例

Question

我有一个带有几种形式的UpdateView，我试图了解如何为另一种形式设置实例，因为第一种形式工作得很好，但是第二种形式始终为空，我无法弄清楚如何设置该模型表单的实例。

class ProfileUpdateView(UpdateView):
    # model = User
    queryset = User.objects.all()
    form_class = UserForm
    second_form_class = ClientForm

    template_name = 'accounts/update.html'



    def get_object(self):
        user = get_object_or_404(User , username__iexact=self.kwargs.get('username'))
        return user


    def get_context_data(self, **kwargs):
        user = self.object
        profile = Client.objects.get(id = user.clients.id)
        context = super(ProfileUpdateView, self).get_context_data(**kwargs)

        if user.is_client and 'ClientForm' not in context:
            context['client_form'] = self.second_form_class(self.request.GET, instance=profile )
    return context

模型

class User(AbstractUser):
    gender_choice  =(
        ('Male','Male'),
        ('Female','Female'),
        )
    is_artisan     = models.BooleanField('artisan status', default=False)
    is_client      = models.BooleanField('client status', default=False)
    avatar         = models.ImageField(null=True ,blank=True)
    birth_day      = models.DateField(null=True,blank=True)
    birth_location = models.CharField(max_length=30, null=True ,blank=True)
    adresse        = models.CharField(max_length=30, null=True ,blank=True)
    gender         = models.CharField(max_length=6,choices=gender_choice,)
    phone          = models.CharField(max_length=10 ,null=True ,blank=True)

class Client(models.Model):
    client_choice = (
        ('erson','person'),
        ('company','company'),
        )
    client_type = models.CharField(max_length=10,choices=client_choice,)
    user        = models.OneToOneField(settings.AUTH_USER_MODEL,on_delete=models.CASCADE, related_name='clients')

表格

class UserForm(forms.ModelForm):

    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'email','avatar','adresse','birth_location','birth_day' ,'gender' ,'phone')



class ClientForm(forms.ModelForm):

    class Meta:
        model = Client
        fields = ('client_type',)

现在的问题是如何/在哪里设置第二个表单的实例，在哪里设置第一个表单的实例。

Answer 1

get_context_data中是否有错字？应该是

if user.is_client and 'client_form' not in context:
    context['client_form'] = self.second_form_class(self.request.GET, instance=profile)

第一种形式是在UpdateView的超类FormMixin.get_context_data中设置的（后者又调用FormMixin.get_form（））。 Docs for FormMixin