數據庫錯誤：沒有這樣的列：connect_connect.reciever_id

Question

我創建了以下我無法訪問連接通過管理站點添加任何連接對象模型

class ConnectToFrom(models.Model): 
    person = models.ForeignKey(User, null=True) 
    kiosk = models.ForeignKey(Kiosks, null=True) 

class Connect(models.Model): 
    parent_id = models.ForeignKey("self", null = True, blank = True) 
    sender = models.ForeignKey(ConnectToFrom, related_name='sent_messages') 
    reciever = models.ForeignKey(ConnectToFrom, related_name='received_messages') 
    . 
    . 
    . 

！ 我可以不參考兩個領域相同的模型？ 我無法弄清究竟是什麼導致了錯誤。 請幫助

回溯：

Environment: 


Request Method: GET 
Request URL: http://www.krisvenham.com:8000/admin/connect/connect/ 

Django Version: 1.3 
Python Version: 2.6.6 
Installed Applications: 
['broadcast', 
'shastra', 
'fb_api', 
'log', 
'nties', 
'crc', 
'connect', 
'network', 
'django.contrib.auth', 
'django.contrib.contenttypes', 
'django.contrib.sessions', 
'django.contrib.sites', 
'django.contrib.messages', 
'django.contrib.admin', 
'kiosks', 
'content', 
'home', 
'dashboard', 
'trial', 
'meta', 
'oembed'] 
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') 


Traceback: 
File "C:\Python26\lib\site-packages\django\core\handlers\base.py" in get_response 
    111.       response = callback(request, *callback_args, **callback_kwargs) 
File "C:\Python26\lib\site-packages\django\contrib\admin\options.py" in wrapper 
    307.     return self.admin_site.admin_view(view)(*args, **kwargs) 
File "C:\Python26\lib\site-packages\django\utils\decorators.py" in _wrapped_view 
    93.      response = view_func(request, *args, **kwargs) 
File "C:\Python26\lib\site-packages\django\views\decorators\cache.py" in _wrapped_view_func 
    79.   response = view_func(request, *args, **kwargs) 
File "C:\Python26\lib\site-packages\django\contrib\admin\sites.py" in inner 
    197.    return view(request, *args, **kwargs) 
File "C:\Python26\lib\site-packages\django\utils\decorators.py" in _wrapper 
    28.    return bound_func(*args, **kwargs) 
File "C:\Python26\lib\site-packages\django\utils\decorators.py" in _wrapped_view 
    93.      response = view_func(request, *args, **kwargs) 
File "C:\Python26\lib\site-packages\django\utils\decorators.py" in bound_func 
    24.     return func(self, *args2, **kwargs2) 
File "C:\Python26\lib\site-packages\django\contrib\admin\options.py" in changelist_view 
    1159.    'selection_note': _('0 of %(cnt)s selected') % {'cnt': len(cl.result_list)}, 
File "C:\Python26\lib\site-packages\django\db\models\query.py" in __len__ 
    82.     self._result_cache = list(self.iterator()) 
File "C:\Python26\lib\site-packages\django\db\models\query.py" in iterator 
    273.   for row in compiler.results_iter(): 
File "C:\Python26\lib\site-packages\django\db\models\sql\compiler.py" in results_iter 
    680.   for rows in self.execute_sql(MULTI): 
File "C:\Python26\lib\site-packages\django\db\models\sql\compiler.py" in execute_sql 
    735.   cursor.execute(sql, params) 
File "C:\Python26\lib\site-packages\django\db\backends\util.py" in execute 
    34.    return self.cursor.execute(sql, params) 
File "C:\Python26\lib\site-packages\django\db\backends\sqlite3\base.py" in execute 
    234.    return Database.Cursor.execute(self, query, params) 

Exception Type: DatabaseError at /admin/connect/connect/ 
Exception Value: no such column: connect_connect.reciever_id 

Answer 1

你的receiver字段添加到模型最初創建connect_connect表後？如果是這樣，您必須手動將該字段添加到數據庫中（Django不會自動將更改與數據庫同步到模型中。）

只需啓動交互式db shell，通常爲dbshell，然後添加該字段。在MySQL中它會是這樣的：

ALTER TABLE connect_connect ADD COLUMN receiver_id integer; 

我建議你運行manage.py sqlall appname看看Django是如何將現在創建數據庫表，然後確保數據庫匹配通過你的數據庫外殼進行必要的改變。