Объект 'str' не может быть вызван при доступе к 'api / users /' - PullRequest
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Объект 'str' не может быть вызван при доступе к 'api / users /'

0 голосов
/ 02 августа 2020

Я использую python 3.8 вместе с остальной структурой, и, пожалуйста, найдите приведенные ниже сведения.

Ниже приведен мой сериализатор для пользователей UserSerializer 

from django.shortcuts import render
from django.contrib.auth.models import User
from rest_framework import viewsets, status
from rest_framework.response import Response
from rest_framework.decorators import action
from rest_framework.authentication import TokenAuthentication
from rest_framework.permissions import IsAuthenticated, AllowAny

from .serializers import MovieSerializer, RatingSerializer, UserSerializer

from .models import Movie, Rating

# Create your views here.
class UserViewSet(viewsets.ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer

urls.py(api component)

router = routers.DefaultRouter()
router.register("movies", MovieViewSet)
router.register("ratings", RatingViewSet)
router.register("users", UserViewSet)

urlpatterns = [
    path("", include(router.urls))
]

urls.py(main project)

urlpatterns = [
    path('admin/', admin.site.urls),
    path('api/', include("api.urls")),
    path('auth/', obtain_auth_token),
]

Environment: 

Request Method: GET
Request URL: http://localhost:8000/api/users/

Django Version: 3.0.8
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',
 'rest_framework',
 'rest_framework.authtoken',
 'api',
 'corsheaders']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 '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:\study\fullstack\Movieraterapi\venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\rest_framework\viewsets.py", line 114, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\rest_framework\views.py", line 488, in dispatch
    request = self.initialize_request(request, *args, **kwargs)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\rest_framework\viewsets.py", line 135, in initialize_request
    request = super().initialize_request(request, *args, **kwargs)
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\rest_framework\views.py", line 390, in initialize_request
    authenticators=self.get_authenticators(),
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\rest_framework\views.py", line 272, in get_authenticators
    return [auth() for auth in self.authentication_classes]
  File "C:\study\fullstack\Movieraterapi\venv\lib\site-packages\rest_framework\views.py", line 272, in <listcomp>
    return [auth() for auth in self.authentication_classes]

Exception Type: TypeError at /api/users/
Exception Value: 'str' object is not callable

Пожалуйста, помогите мне найти проблему, URL-адреса работают нормально для api/movies/ и api/ratings/, но когда я пытаюсь доступ к api/users Я получаю эту ошибку.

1 Ответ

0 голосов
/ 04 сентября 2020

settings.py 

    REST_FRAMEWORK = {

   'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework.authentication.SessionAuthentication',

    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',

    ),
}

views.py 

...
from rest_framework import authentication, permissions
...

authentication_classes = [authentication.TokenAuthentication, ]
permission_classes = [permissions.IsAuthenticated, ]
...