Question

我遇到了可以解决的错误＆＃34;只需添加到INSTALLED_APPS（不含migrate）：

'django.contrib.auth',
'django.contrib.contenttypes',

基于调试输出，似乎发生了此错误，因为Django Rest Framework正在尝试对请求进行身份验证，这需要Auth应用程序，该应用程序需要Permissions和ContentTypes，所有这些都已被删除。 APIView仅使用query_params中的request，而不是其他内容。它接受全局DRF设置，如下所示：

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (),
    'DEFAULT_PERMISSION_CLASSES': (),
    'DEFAULT_RENDERER_CLASSES': ('common.rest.JSONRenderer',),
    'DEFAULT_CONTENT_NEGOTIATION_CLASS': 'common.rest.IgnoreNegotiation',
}

调试输出：

RuntimeError at /mac/pins/
Model class django.contrib.contenttypes.models.ContentType doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

Request Method: GET
Request URL: http://django/mac/pins/
Django Version: 1.10.5
Python Executable: /home/admin/env/bin/python3.6
Python Version: 3.6.0
Python Path: ['/home/admin/src', '/home/admin/env/bin', '/home/admin/env/lib/python36.zip', '/home/admin/env/lib/python3.6', '/home/admin/env/lib/python3.6/lib-dynload', '/usr/local/lib/python3.6', '/home/admin/env/lib/python3.6/site-packages']
Server time: Fri, 24 Feb 2017 00:54:33 +0000
Installed Applications:
['myapp']
Installed Middleware:
()

Traceback:  

File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
  39.             response = get_response(request)

File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/base.py" in _legacy_get_response
  249.             response = self._get_response(request)

File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/home/admin/env/lib/python3.6/site-packages/django/views/decorators/csrf.py" in wrapped_view
  58.         return view_func(*args, **kwargs)

File "/home/admin/env/lib/python3.6/site-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
  483.             response = self.handle_exception(exc)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in handle_exception
  443.             self.raise_uncaught_exception(exc)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
  471.             self.initial(request, *args, **kwargs)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in initial
  393.         self.perform_authentication(request)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in perform_authentication
  319.         request.user

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in __getattribute__
  379.             return super(Request, self).__getattribute__(attr)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in user
  196.             self._authenticate()

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in _authenticate
  352.         self._not_authenticated()

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in _not_authenticated
  363.         if api_settings.UNAUTHENTICATED_USER:

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/settings.py" in __getattr__
  220.             val = perform_import(val, attr)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/settings.py" in perform_import
  163.         return import_from_string(val, setting_name)

File "/home/admin/env/lib/python3.6/site-packages/rest_framework/settings.py" in import_from_string
  177.         module = import_module(module_path)

File "/home/admin/env/lib/python3.6/importlib/__init__.py" in import_module
  126.     return _bootstrap._gcd_import(name[level:], package, level)

File "/home/admin/env/lib/python3.6/site-packages/django/contrib/auth/models.py" in <module>
  6. from django.contrib.contenttypes.models import ContentType

File "/home/admin/env/lib/python3.6/site-packages/django/contrib/contenttypes/models.py" in <module>
  138. class ContentType(models.Model):

File "/home/admin/env/lib/python3.6/site-packages/django/db/models/base.py" in __new__
  113.                         "INSTALLED_APPS." % (module, name)

Exception Type: RuntimeError at /mac/pins/
Exception Value: Model class django.contrib.contenttypes.models.ContentType doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

为什么是否尝试对请求进行身份验证？我怎么能阻止它？

Answer 1

它没有尝试验证请求。你没有任何身份验证器，所以它跳过了一个空元组并转到：

352.         self._not_authenticated()

但是，rest框架中未经身份验证的用户对象默认为：

# Authentication
'UNAUTHENTICATED_USER': 'django.contrib.auth.models.AnonymousUser',

因此，如果您不想提取django.contrib.auth，也许您需要提供自己未经身份验证的用户模型。

为什么Django Rest Framework会尝试验证请求？

1 个答案: