Question

大家！在用户详细信息页面上，我有用户的帖子，我想分页（稍后计划进行无限分页）。试图做到这一点，我得到错误“ UserDetailView”对象没有属性“ object_list”。我在寻找很多解决方案，但是没有找到清晰的示例如何在详细视图中对相关对象进行分页。对此表示赞赏，对此有任何帮助。

这是我给用户的DetailView：



class UserDetailView(DetailView,MultipleObjectMixin):
    model = CustomUser
    template_name = 'users/user_detail.html'
    context_object_name = "user"
    paginate_by = 5


    def get_object(self):
        id_ = self.kwargs.get('id')
        return get_object_or_404(CustomUser, id=id_)


    def get_context_data(self, **kwargs):

        posts = self.object.posts_set.all().order_by('-created_at')
        #context['posts'] = self.object.posts_set.all().order_by('-created_at')

        context = super(UserDetailView, self).get_context_data(posts=posts, **kwargs)

        context['main'] = Main.objects.get(pk=1)
        context['supporters'] = CustomUser.objects.filter(team = self.object.team)

        return context

我得到的错误是： 'UserDetailView'对象没有属性'object_list'

跟踪

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/user/1/

Django Version: 3.0.7
Python Version: 3.8.3
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'users.apps.UsersConfig',
 'team.apps.TeamConfig',
 'posts.apps.PostsConfig',
 'main.apps.MainConfig',
 'crispy_forms',
 'django.contrib.humanize',
 'rest_framework',
 'pytils']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\views\generic\base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\views\generic\base.py", line 97, in dispatch
    return handler(request, *args, **kwargs)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\views\generic\detail.py", line 107, in get
    context = self.get_context_data(object=self.object)
  File "C:\Users\User\Desktop\fansite\fantribune\users\views.py", line 66, in get_context_data
    context = super(UserDetailView, self).get_context_data(posts=posts, **kwargs)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\views\generic\detail.py", line 100, in get_context_data
    return super().get_context_data(**context)
  File "C:\Users\User\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\views\generic\list.py", line 115, in get_context_data
    queryset = object_list if object_list is not None else self.object_list

Exception Type: AttributeError at /user/1/
Exception Value: 'UserDetailView' object has no attribute 'object_list'

Answer 1

我解决了这个问题。下面是代码。对其他人可能有用。

class UserDetailView(DetailView,MultipleObjectMixin):
    model = CustomUser
    template_name = 'users/user_detail.html'
    context_object_name = "user"
    paginate_by = 5


    def get_object(self):
        id_ = self.kwargs.get('id')
        return get_object_or_404(CustomUser, id=id_)


    def get_context_data(self, **kwargs):

        object_list = Posts.objects.filter(author=self.get_object())
        #posts = self.object.posts_set.all().order_by('-created_at')
        context = super(UserDetailView, self).get_context_data(object_list=object_list,**kwargs)
        #context['posts'] = self.object.posts_set.all().order_by('-created_at')


        context['main'] = Main.objects.get(pk=1)
        context['supporters'] = CustomUser.objects.filter(team = self.object.team)

        return context

因此，为了在DetailView中对相关对象进行分页，我添加了MultipleObjectMixin作为参数：

class UserDetailView(DetailView,MultipleObjectMixin):

然后在get_context_data中获取相关模型并定义上下文超级：

 def get_context_data(self, **kwargs):

        object_list = Posts.objects.filter(author=self.get_object())

        context = super(UserDetailView, self).get_context_data(object_list=object_list,**kwargs)

 #other code

和

Answer 2

这看起来更像一个列表视图，您还可以在其中添加ValueError: String length does not equal format and resolution size的数据：

CustomUser

'UserDetailView'对象没有属性'object_list'

2 个答案: