python之“WSGIRequest”对象在 Google App Engine 中没有属性 'user'

我是 django 和 Google App Engine 的新手，在使用数据存储区时遇到了问题。每次我进行查询时，例如

db.GqlQuery("SELECT * FROM Listing ORDER BY date DESC LIMIT 10") 

我收到错误:

'WSGIRequest' object has no attribute 'user' 

这个错误似乎是在 django 核心的 context_processors.py 中产生的。现在，我在网上找到的建议说要注释掉与用户相关的INSTALLED_APPS 和MIDDLEWARE_CLASSES，但这似乎没有帮助。我的代码如下所示:

MIDDLEWARE_CLASSES = ( 
#    'django.middleware.common.CommonMiddleware', 
#    'django.contrib.sessions.middleware.SessionMiddleware', 
#    'django.contrib.auth.middleware.AuthenticationMiddleware', 
#    'django.middleware.doc.XViewMiddleware', 
) 
 
INSTALLED_APPS = ( 
#    'django.contrib.auth', 
    'django.contrib.contenttypes', 
#    'django.contrib.sessions', 
    'django.contrib.sites', 
) 

我的 Listing 对象定义如下(它之前有一个 author 属性，但现在被注释掉了，对象被重新定义了一个新名称):

class Listing(db.Model): 
    #author = db.UserProperty() 
    address = db.StringProperty() 
    date = db.DateTimeProperty(auto_now_add=True) 
    coords = db.GeoPtProperty() 

有谁知道导致此错误的原因以及如何解决？是否可能需要以某种方式重置设置？

请您参考如下方法:

更新

sdolan建议的解决方案似乎是在app的settings.py中添加如下内容:

TEMPLATE_CONTEXT_PROCESSORS = ( “django.core.context_processors.debug”， "django.core.context_processors.i18n")

这有效地删除了第三个默认处理器 django.core.context_processors.auth(它不应该存在，因为对于 AppEngine，我们不需要 Django 的 auth 组件)。

谢谢 sdolan 的解决方案!希望其他人也可以使用它。 :)

@Nick，我认为值得将关于 CONTEXT_PROCESSORS 的黄金篇放在教程中 (http://code.google.com/appengine/articles/django.html)

(问题的原始跟进)

有同样的问题，正在寻找解决方案....当settings.py包含时一切正常

调试 = 真

但是当我切换到

时，这个错误弹出(并扼杀了我继续学习的动力)

调试 = 错误

@Nick Johnson，这是堆栈跟踪:

Traceback (most recent call last): 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3211, in _HandleRequest 
    self._Dispatch(dispatcher, self.rfile, outfile, env_dict) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3154, in _Dispatch 
    base_env_dict=env_dict) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 527, in Dispatch 
    base_env_dict=base_env_dict) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2404, in Dispatch 
    self._module_dict) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2314, in ExecuteCGI 
    reset_modules = exec_script(handler_path, cgi_path, hook) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2212, in ExecuteOrImportScript 
    script_module.main() 
  File "C:\Dev\appengine\djangotest\main.py", line 37, in main 
    util.run_wsgi_app(application) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\webapp\util.py", line 97, in run_wsgi_app 
    run_bare_wsgi_app(add_wsgi_middleware(application)) 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\webapp\util.py", line 115, in run_bare_wsgi_app 
    result = application(env, _start_response) 
  File "C:\Program Files (x86)\Google\google_appengine\lib\django\django\core\handlers\wsgi.py", line 189, in __call__ 
    response = self.get_response(request) 
  File "C:\Program Files (x86)\Google\google_appengine\lib\django\django\core\handlers\base.py", line 103, in get_response 
    return callback(request, **param_dict) 
  File "C:\Program Files (x86)\Google\google_appengine\lib\django\django\views\defaults.py", line 79, in page_not_found 
    return http.HttpResponseNotFound(t.render(RequestContext(request, {'request_path': request.path}))) 
  File "C:\Program Files (x86)\Google\google_appengine\lib\django\django\template\context.py", line 100, in __init__ 
    self.update(processor(request)) 
  File "C:\Program Files (x86)\Google\google_appengine\lib\django\django\core\context_processors.py", line 18, in auth 
    'user': request.user, 
AttributeError: 'WSGIRequest' object has no attribute 'user'