Django缓存设置阻止所有命令

我的问题是，我为django配置了一个DB缓存。现在，如果我清除了数据库，没有任何命令正在工作：Django缓存设置阻止所有命令

Traceback (most recent call last): 
    File "app/manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line 
    utility.execute() 
    File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 354, in execute 
    django.setup() 
    File "/usr/local/lib/python2.7/site-packages/django/__init__.py", line 21, in setup 
    apps.populate(settings.INSTALLED_APPS) 
    File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 115, in populate 
    app_config.ready() 
    File "/usr/local/lib/python2.7/site-packages/django/contrib/admin/apps.py", line 22, in ready 
    self.module.autodiscover() 
    File "/usr/local/lib/python2.7/site-packages/django/contrib/admin/__init__.py", line 23, in autodiscover 
    autodiscover_modules('admin', register_to=site) 
    File "/usr/local/lib/python2.7/site-packages/django/utils/module_loading.py", line 74, in autodiscover_modules 
    import_module('%s.%s' % (app_config.name, module_to_search)) 
    File "/usr/local/lib/python2.7/importlib/__init__.py", line 37, in import_module 
    __import__(name) 
    File "/usr/local/lib/python2.7/site-packages/cms/admin/__init__.py", line 11, in <module> 
    plugin_pool.plugin_pool.discover_plugins() 
    File "/usr/local/lib/python2.7/site-packages/cms/plugin_pool.py", line 35, in discover_plugins 
    invalidate_cms_page_cache() 
    File "/usr/local/lib/python2.7/site-packages/cms/views.py", line 340, in invalidate_cms_page_cache 
    version = _get_cache_version() 
    File "/usr/local/lib/python2.7/site-packages/cms/views.py", line 285, in _get_cache_version 
    version = cache.get(CMS_PAGE_CACHE_VERSION_KEY) 
    File "/usr/local/lib/python2.7/site-packages/django/core/cache/backends/db.py", line 65, in get 
    "WHERE cache_key = %%s" % table, [key]) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 81, in execute 
    return super(CursorDebugWrapper, self).execute(sql, params) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 65, in execute 
    return self.cursor.execute(sql, params) 
    File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 94, in __exit__ 
    six.reraise(dj_exc_type, dj_exc_value, traceback) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 65, in execute 
    return self.cursor.execute(sql, params) 
django.db.utils.ProgrammingError: relation "cache_table" does not exist 
LINE 1: SELECT cache_key, value, expires FROM "cache_table" WHERE ca...

因此显然cache_table丢失。但我不能生成一个新的与manage.py createcachetable，因为这个错误..

这是高速缓存配置：

CACHES = { 
    'default': { 
     'BACKEND': 'django.core.cache.backends.db.DatabaseCache', 
     'LOCATION': 'cache_table', 
    } 
}

感谢您的帮助。

来源

2015-09-15 Jonas Metzener

看着回溯，似乎应用程序试图在创建之前访问缓存表。您可以尝试暂时禁用CMS应用程序，直到创建缓存表。

如果你不能这样做，创建一个新的Django项目，使用相同的数据库和缓存设置，并使用新项目中的./manage.py createcachetable命令创建表。

来源

2015-09-15 09:07:22 Alasdair

我碰到相同的鸡和鸡蛋的情况，似乎如果你已经设置CACHES设置（甚至是一个空字典），Django CMS试图访问它，每当你运行python manage.py ...，因此你不能创建缓存表。

然而createcachetable有一个方便的--settings选项，我结束了创建一个settings_nocache.py旁边，我的实际settings.py，与此内容在里面：

from .settings import * 
del CACHES

并运行以下命令来创建我的缓存表：

python manage.py createcachetable --settings settings_nocache default_cache

的--settings选项后的参数是Python 进口路径，而不是文件系统路径。

来源

2016-02-06 13:59:08

Django缓存设置阻止所有命令

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