Django:Django生成的sql查询导致错误

更新问题：

Django向我提供以下sql查询：

SELECT "auth_user"."id", "auth_user"."username", "auth_user"."first_name", "auth_user"."last_name", "auth_user"."email", "auth_user"."password", "auth_user"."is_staff", "auth_user"."is_active", "auth_user"."is_superuser", "auth_user"."last_login", "auth_user"."date_joined" FROM "auth_user" WHERE "auth_user"."username" = %s  args=('andrew',);

如果在postgresql命令行中执行sql查询，则会出现以下错误：

ERROR:  syntax error at or near "%"
LINE 1: ..." FROM "auth_user" WHERE "auth_user"."username" = %s  args=(...
                                                             ^

但是，当我稍微修改语句时，就会从postgresql获得cirrect结果

SELECT "auth_user"."id", "auth_user"."username", "auth_user"."first_name", "auth_user"."last_name", "auth_user"."email", "auth_user"."password", "auth_user"."is_staff", "auth_user"."is_active", "auth_user"."is_superuser", "auth_user"."last_login", "auth_user"."date_joined" FROM "auth_user" WHERE "auth_user"."username" = 'andrew';

Django生成的查询是否不正确？

---

大家好

非常简单的代码让我抓狂：

我想使用从user_auth提取用户信息

user = get_object_or_404(User, pk = request.user.pk)

但是，我在Django中收到一条错误消息：

'NoneType' object does not support item assignment

当我检查sql查询并在psql命令行中执行它时，psql还会给我一条错误消息，这使我认为该语句可能不正确

psql语句是：

SELECT "auth_user"."id", "auth_user"."username", "auth_user"."first_name", "auth_user"."last_name", "auth_user"."email", "auth_user"."password", "auth_user"."is_staff", "auth_user"."is_active", "auth_user"."is_superuser", "auth_user"."last_login", "auth_user"."date_joined" FROM "auth_user" WHERE "auth_user"."id" = %s ; args=(7,)

为什么在WHERE语句中显示%s？用户id不是字符串。

我相信解决方案必须非常简单，但我能找出问题所在。 谢谢你的帮助和建议

附加说明

我正在使用django_social_auth包进行用户身份验证。一旦第三方清除凭据，用户将被定向到仪表板站点，因此我假设request.user不是None

完全回溯

Environment:


Request Method: GET
Request URL: http://login.test.com:8000/profile/dashboard/

Django Version: 1.3.1
Python Version: 2.7.1
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.gis',
 'django.contrib.messages',
 'django.contrib.markup',
 'django.contrib.staticfiles',
 'django.contrib.flatpages',
 'django.contrib.humanize',
 'guardian',
 'easy_thumbnails',
 'userena',
 'userena.contrib.umessages',
 'south',
 'django_extensions',
 'debug_toolbar',
 'social_auth',
 'djangoratings',
 'about',
 'apps.profiles',
 'apps.map',
 'apps.contact',
 ]
Installed Middleware:
['django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.doc.XViewMiddleware',
 'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware',
 'debug_toolbar.middleware.DebugToolbarMiddleware']


Traceback:
File "/Users/neurix/Development/test/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/Users/neurix/Development/test/test/apps/profiles/views.py" in dashboard
  35.     extra_context['username'] = user.username

Exception Type: TypeError at /profile/dashboard/
Exception Value: 'NoneType' object does not support item assignment

views.py

...
31: print "user: %s" %(request.user.pk)
32: user = get_object_or_404(User, pk = request.user.pk)
33:
34: 
35: extra_context['username'] = user.username
36: if user.first_name:
37:     extra_context['name'] = user.first_name
...

---

---

可能是该请求。用户是否为无

if request.user is not None:
    user = get_object_or_404(User, pk = request.user.pk)

---

%s

是通用占位符，不表示字符串。尝试发布回溯。您能显示完整的回溯吗？添加了回溯。谢谢你的帮助！现在我们需要查看包含

/Users/neurix/Development/test/test/apps/profiles/views.py:35

的代码。嗨，Ignacio，我已经在第35行周围添加了几行。