爲什麼Django抱怨我還沒有設置我的ENGINE？

Question

DATABASES = { 
    'default': { 
     'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'. 
     'NAME': 'djangobb',      # Or path to database file if using sqlite3. 
     'USER': 'root',      # Not used with sqlite3. 
     'PASSWORD': 'root',     # Not used with sqlite3. 
     'HOST': '',      # Set to empty string for localhost. Not used with sqlite3. 
     'PORT': '',      # Set to empty string for default. Not used with sqlite3. 
    } 
} 

任何想法？我不能manage.py運行執行syncdb命令：

Environment: 

Request Method: GET 
Request URL: http://localhost:8000/admin/ 
Django Version: 1.2.1 
Python Version: 2.5.4 
Installed Applications: 
['django.contrib.auth', 
'django.contrib.contenttypes', 
'django.contrib.sessions', 
'django.contrib.sites', 
'django.contrib.sitemaps', 
'django.contrib.admin', 
'django.contrib.admindocs', 
'registration', 
'django_authopenid', 
'djangobb_forum', 
'djapian', 
'messages'] 
Installed Middleware: 
('django.middleware.cache.UpdateCacheMiddleware', 
'django.middleware.common.CommonMiddleware', 
'django.contrib.sessions.middleware.SessionMiddleware', 
'django.middleware.locale.LocaleMiddleware', 
'django.contrib.auth.middleware.AuthenticationMiddleware', 
'django.contrib.csrf.middleware.CsrfMiddleware', 
'django_authopenid.middleware.OpenIDMiddleware', 
'django.middleware.cache.FetchFromCacheMiddleware', 
'django.middleware.transaction.TransactionMiddleware', 
'djangobb_forum.middleware.LastLoginMiddleware', 
'djangobb_forum.middleware.UsersOnline') 


Traceback: 
File "C:\Python25\Lib\site-packages\django\core\handlers\base.py" in get_response 
    80.      response = middleware_method(request) 
File "C:\Python25\Lib\site-packages\django\middleware\locale.py" in process_request 
    16.   language = translation.get_language_from_request(request) 
File "C:\Python25\Lib\site-packages\django\utils\translation\__init__.py" in get_language_from_request 
    90.  return real_get_language_from_request(request) 
File "C:\PYTHON25\lib\site-packages\django\utils\functional.py" in _curried 
    55.   return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs)) 
File "C:\Python25\Lib\site-packages\django\utils\translation\__init__.py" in delayed_loader 
    36.  return getattr(trans, real_name)(*args, **kwargs) 
File "C:\Python25\Lib\site-packages\django\utils\translation\trans_real.py" in get_language_from_request 
    339.   lang_code = request.session.get('django_language', None) 
File "C:\Python25\Lib\site-packages\django\contrib\sessions\backends\base.py" in get 
    63.   return self._session.get(key, default) 
File "C:\Python25\Lib\site-packages\django\contrib\sessions\backends\base.py" in _get_session 
    172.     self._session_cache = self.load() 
File "C:\Python25\Lib\site-packages\django\contrib\sessions\backends\db.py" in load 
    20.     expire_date__gt=datetime.datetime.now() 
File "C:\Python25\lib\site-packages\django\db\models\manager.py" in get 
    132.   return self.get_query_set().get(*args, **kwargs) 
File "C:\Python25\Lib\site-packages\django\db\models\query.py" in get 
    336.   num = len(clone) 
File "C:\Python25\Lib\site-packages\django\db\models\query.py" in __len__ 
    81.     self._result_cache = list(self.iterator()) 
File "C:\Python25\Lib\site-packages\django\db\models\query.py" in iterator 
    269.   for row in compiler.results_iter(): 
File "C:\Python25\Lib\site-packages\django\db\models\sql\compiler.py" in results_iter 
    672.   for rows in self.execute_sql(MULTI): 
File "C:\Python25\Lib\site-packages\django\db\models\sql\compiler.py" in execute_sql 
    717.    sql, params = self.as_sql() 
File "C:\Python25\Lib\site-packages\django\db\models\sql\compiler.py" in as_sql 
    56.   out_cols = self.get_columns(with_col_aliases) 
File "C:\Python25\Lib\site-packages\django\db\models\sql\compiler.py" in get_columns 
    185.      col_aliases) 
File "C:\Python25\Lib\site-packages\django\db\models\sql\compiler.py" in get_default_columns 
    273.     r = '%s.%s' % (qn(alias), qn2(field.column)) 
File "C:\Python25\Lib\site-packages\django\db\models\sql\compiler.py" in quote_name_unless_alias 
    43.   r = self.connection.ops.quote_name(name) 
File "C:\Python25\lib\site-packages\django\db\backends\dummy\base.py" in complain 
    15.  raise ImproperlyConfigured("You haven't set the database ENGINE setting yet.") 

Exception Type: ImproperlyConfigured at /admin/ 
Exception Value: You haven't set the database ENGINE setting yet. 

Answer 1

我把我的舊的方式和新途徑，因此，它不是Django的特定版本：

DATABASE_ENGINE = 'django.db.backends.sqlite3' 
DATABASE_NAME  = '/path/to/db/foo.sqlite3' 
DATABASE_USER  = '' 
DATABASE_PASSWORD = '' 
DATABASE_HOST  = '' 
DATABASE_PORT  = '' 

DATABASES = { 
    'default': { 
    'ENGINE': DATABASE_ENGINE, 
    'NAME':  DATABASE_NAME, 
    'USER':  DATABASE_USER, 
    'PASSWORD': DATABASE_PASSWORD, 
    'HOST':  DATABASE_HOST, 
    'PORT':  DATABASE_PORT, 
    } 
} 

但是，是的，我'd仔細檢查你的安裝是否是你認爲的版本。

UPDATE：

您可能試圖導入從設置一些管理員模塊中，並在設置導入管理模塊。有時循環導入導致上述情況。

特別是，使用設置中的反向（「URL名稱」）可能導致這一點，因爲它最終迫使它來看看一些深層次暗的「網站」表...

UPDATE2 ：

對不起，來解釋上述：

• 的圓形進口是當從模塊B模塊A的進口，並在一定程度上，模塊B也期間，需要從模塊A的東西在某一點第二層次的深度，它通常以某種難以理解的方式失敗。
• Reverse（）是將url的名稱（urls.py中的name =「foo」）轉換回url本身的函數。這使得在設置或管理模塊中並不總是可能的呼叫。

UPDATE3：

看着djangobb.org/ticket/81你指出，打破一些術語下來票，CSRF令牌是用於添加跨站請求僞造保護模板標籤：

http://docs.djangoproject.com/en/dev/ref/contrib/csrf/

它一般是這樣的，從我的一個項目到grep：

# grep -ri csrf . 
    ./registration/login.html: <form method="post" action="{% url django.contrib.auth.views.login %}">{% csrf_token %} 

雖然我不知道djapian是我自己，但通常意味着直接安裝（通常是svn）中繼 - 或者「最新的，在版本中檢查，這比新的任何版本，並可能經過測試的官方版本「。通常，這需要執行一些操作，如svn checkout http://wherever.com/someproject/trunk/ ./someproject，然後轉到該目錄進行安裝。