Python Django使用数据库中的数据获取表单

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来自数据库的最新数据。以下是我到目前为止的情况：

# 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})

---

将表单设置为form_class（None）会给我一个空表单，但是在同一位置删除user.profile会给我一个错误“profile”对象没有属性“get”

请尝试用实例填充表单

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

注意：使用标准可能会更容易