Django AttributeError：'str'对象没有属性'get'

Question

访问网址时，它会返回问题标题中提到的错误。

View 本身是一个 ListView。

当我调试视图时，它只循环通过调度程序函数并返回以下错误而没有进入查询集。 这是代码。

列表视图

class MailingListView(ListView, LoginRequiredMixin):
    # model = MailingList
    template_name = 'mailinglist/mailing_list.html'

    def get_queryset(self):
        return MailingList.objects.filter(owner=self.request.user)

    def dispatch(self, request, *args, **kwargs):
        if not request.user.is_authenticated:
            return reverse('user:login')
        return super().dispatch(request, *args, **kwargs)

型号

class MailingList(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4(), editable=False)
    name = models.CharField(max_length=140)
    owner = models.ForeignKey(to=user_model,
                              on_delete=models.CASCADE)

    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse('mailinglist:manage_list', kwargs={'pk': self.id})

    def user_can_use_mailinglist(self, user):
        return user == self.owner

追溯

> Internal Server Error: /mailinglist/ Traceback (most recent call
> last):   File
> "/venv/lib/python3.7/site-packages/django/core/handlers/exception.py",
> line 34, in inner
>     response = get_response(request)   File "/venv/lib/python3.7/site-packages/django/utils/deprecation.py",
> line 93, in __call__
>     response = self.process_response(request, response)   File /venv/lib/python3.7/site-packages/django/middleware/clickjacking.py",
> line 26, in process_response
>     if response.get('X-Frame-Options') is not None: AttributeError: 'str' object has no attribute 'get'

Answer 1

reverse() 返回一个字符串。但是你应该返回 HTTP 响应。

dispatch 更改为 MailingListView。

from django.http import HttpResponseRedirect

return HttpResponseRedirect(reverse('user:login'))