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更新的问题：

Django 给了我以下 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',);

如果我在 postgresql 命令行中执行 sql 查询，则会收到以下错误：

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，我会从 postgresql 得到正确的结果。

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 生成的查询不正确吗？

嗨 Stackoverflow 人，

非常简单的代码让我发疯：

我想从 user_auth 中提取用户信息

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 也给了我一条错误消息，这让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,)

为什么它在 WHERE 语句中说 %s？用户 ID 不是字符串。

我相信解决方案必须非常简单——但我可以弄清楚这里的问题所在。感谢您的帮助和建议！

附加说明

我正在使用 django_social_auth 包进行用户身份验证。一旦第三部分清除了凭据，用户将被定向到仪表板站点，因此我假设 request.user 不是 None。

完整的追溯

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

视图.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
...
4

1 回答 1

1

难道 request.user 是 None 吗？

if request.user is not None:
    user = get_object_or_404(User, pk = request.user.pk)
于 2012-03-24T03:57:01.450 回答