Question

我正在Django中创建一个Web应用程序，用户可以在他/她的帐户中存储文件。当我想将ProgrammingError用作User时，我得到ForeignKey。

以下是models.py

中的代码

from django.db import models
from django.contrib.auth.models import User

class InputFiles(models.Model):
    input_user = models.ForeignKey(User)
    audio_file = models.FileField(upload_to='\media')
    text_file = models.CharField(max_length=200)

可以通过管理页面查看此表。当我评论input_user（我使用South来更新表格）时，我可以通过管理页面查看此表格。但是，当我评论input_user时，我收到以下错误：

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/admin/nalign_app_recorder/inputfiles/

Django Version: 1.6.1
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'gunicorn',
'nalign_app_recorder',
'south')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware')


Traceback:
File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
112.                     response = wrapped_callback(request, *callback_args,              **callback_kwargs)
File "/usr/lib/python2.7/dist-packages/django/contrib/admin/options.py" in wrapper
432.                 return self.admin_site.admin_view(view)(*args, **kwargs) 
File "/usr/lib/python2.7/dist-packages/django/utils/decorators.py" in _wrapped_view
99.                     response = view_func(request, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/django/views/decorators/cache.py" in    _wrapped_view_func
52.         response = view_func(request, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/django/contrib/admin/sites.py" in inner
198.             return view(request, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/django/utils/decorators.py" in _wrapper
29.             return bound_func(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/django/utils/decorators.py" in _wrapped_view
99.                     response = view_func(request, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/django/utils/decorators.py" in bound_func
25.                 return func(self, *args2, **kwargs2)
File "/usr/lib/python2.7/dist-packages/django/contrib/admin/options.py" in    changelist_view
1411.             'selection_note': _('0 of %(cnt)s selected') % {'cnt':   len(cl.result_list)},
File "/usr/lib/python2.7/dist-packages/django/db/models/query.py" in __len__
77.         self._fetch_all()
File "/usr/lib/python2.7/dist-packages/django/db/models/query.py" in _fetch_all
854.             self._result_cache = list(self.iterator())
File "/usr/lib/python2.7/dist-packages/django/db/models/query.py" in iterator
220.         for row in compiler.results_iter():
File "/usr/lib/python2.7/dist-packages/django/db/models/sql/compiler.py" in results_iter
710.         for rows in self.execute_sql(MULTI):
File "/usr/lib/python2.7/dist-packages/django/db/models/sql/compiler.py" in execute_sql
781.         cursor.execute(sql, params)
File "/usr/lib/python2.7/dist-packages/django/db/backends/util.py" in execute
69.             return super(CursorDebugWrapper, self).execute(sql, params)
File "/usr/lib/python2.7/dist-packages/django/db/backends/util.py" in execute
53.                 return self.cursor.execute(sql, params)
File "/usr/lib/python2.7/dist-packages/django/db/utils.py" in __exit__
99.                 six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/lib/python2.7/dist-packages/django/db/backends/util.py" in execute
53.                 return self.cursor.execute(sql, params)

Exception Type: ProgrammingError at /admin/nalign_app_recorder/inputfiles/
Exception Value: column nalign_app_recorder_inputfiles.input_user_id does not exist
LINE 1: SELECT "nalign_app_recorder_inputfiles"."id", "nalign_app_re...

有没有人知道解决方法。

Answer 1

我终于找到了答案。

我猜问题出现了，因为south无法添加新条目。因此，我清理了数据库并重新开始。当我做以下事情时，问题就消失了：

首先删除迁移文件夹
然后完全删除数据中的内容
运行＆＃39; syncdb＆＃39;
最后，转换为南
当然，如果您想登录管理页面，请不要忘记创建超级用户

命令如下：

sudo rm -r myapp/migrations/
sudo python manage.py sqlflush | python manage.py dbshell
sudo python manage.py syncdb 
sudo python manage.py convert_to_south myapp
sudo python manage.py createsuperuser

Answer 2

InputFiles表没有input_user列。尝试执行＆＃39; manage.py syncdb＆＃39;更新数据库..

在Django中无法在ForeignKey中使用User

2 个答案: