Django从数据库获取带有数据的窗体

Question

我试图创建一个表单，允许用户编辑他们的个人资料数据。因此，我希望在用户编辑表单时显示数据库中最新的数据。到目前为止，我得到的是：

# models.py
class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    location = models.CharField(max_length=30, blank=True)
    birthdate = models.DateField(null=True, blank=True)

    def __str__(self):
        return self.user.username

# forms.py
class EditProfileForm(forms.ModelForm):
    class Meta:
        model = Profile
        fields = ['location', 'birthdate']

# views.py
class EditProfileFormView(View):
    form_class = EditProfileForm
    template_name = 'forums/edit-profile.html'

    def get(self, request, username):

        try:
            user = User.objects.get(username=username)
        except User.DoesNotExist:
            raise Http404('The User "' + username + '" could not be found.')

        if (not request.user.is_authenticated):
            return HttpResponseForbidden()
        elif (user.id is not request.user.id):
            return HttpResponseForbidden()

        form = self.form_class(None)
        return render(request, self.template_name, {'form': form})

但是，将窗体设置为form\u class（None）会给我一个空窗体用户配置文件在同一个地点给我一个错误'Profile'对象没有属性'get'

Answer 1

尝试用实例填充窗体

form = self.form_class(instance=user.profile)

注意：使用标准UpdateView可能会更容易