Django通用UpdateView。如何检查凭证

时间:2014-08-15 10:31:36

标签: python django

我希望能够编辑帖子并保存。

到目前为止,我已设法执行此操作以及检查用户是否已登录。

但是,我似乎无法确定如何验证用户是否有权这样做。

这是我的代码:

class PostUpdate(UpdateView):
    model = Post
    fields = ['title','body','page','category']
    template_name = 'post_update.html'

    @method_decorator(login_required)
    def dispatch(self, *args, **kwargs):
        return super(PostUpdate, self).dispatch(*args, **kwargs)

    def form_valid(self, form):
        form.instance.owner_user = self.request.user
        return super(PostUpdate, self).form_valid(form)

在我的Post模型中,我有一个名为" owner_user"将用户作为外键保存:

owner_user = models.ForeignKey(User)

我希望能够使用我在 urls.py

中的pk变量
url(r'^post/(?P<pk>\d+)/edit',
    PostUpdate.as_view(),
    name='PostUpdate'),

并检查它是这样的:

post = get_object_or_404(Post,id=pk)
if post.owner_user == request.user:
    #Show edit page
else:
    return HttpResponseForbidden()

我怎样才能实现这个目标?

1 个答案:

答案 0 :(得分:3)

添加一个get_object方法并检查用户是否是对象的所有者:

class PostUpdate(UpdateView):
    model = Post
    fields = ['title','body','page','category']
    template_name = 'post_update.html'

    @method_decorator(login_required)
    def dispatch(self, *args, **kwargs):
        return super(PostUpdate, self).dispatch(*args, **kwargs)

    def get_object(self, *args, **kwargs):
        obj = super(PostUpdate, self).get_object(*args, **kwargs)
        if not obj.owner_user == self.request.user:
            raise Http404
        return obj

    def form_valid(self, form):
        form.instance.owner_user = self.request.user
        return super(PostUpdate, self).form_valid(form)