配置约翰尼缓存

Question

我想在我的开发机器上设置约翰尼缓存，但我遇到了一些问题。使用基于文件的缓存是这样的：

CACHES = { 
    'default' : dict(
     BACKEND= 'johnny.backends.filebased.FileBasedCache', 
     LOCATION= '/tmp', 
    ) 
} 

MIDDLEWARE_CLASSES = (
    'johnny.middleware.LocalStoreClearMiddleware', 
    'johnny.middleware.QueryCacheMiddleware', 
) 

我得到：

Traceback (most recent call last): 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/core/servers/basehttp.py", line 283, in run 
    self.result = application(self.environ, self.start_response) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/contrib/staticfiles/handlers.py", line 68, in __call__ 
    return self.application(environ, start_response) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 273, in __call__ 
    response = self.get_response(request) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/core/handlers/base.py", line 168, in get_response 
    receivers = signals.got_request_exception.send(sender=self.__class__, request=request) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 172, in send 
    response = receiver(signal=self, sender=sender, **named) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/db/transaction.py", line 222, in inner 
    self.__exit__(None, None, None) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/db/transaction.py", line 207, in __exit__ 
    self.exiting(exc_value, self.using) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/django/db/transaction.py", line 281, in exiting 
    commit(using=using) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/johnny/transaction.py", line 147, in newfun 
    self._flush(commit=commit, using=using) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/johnny/transaction.py", line 135, in _flush 
    self.cache_backend.set(key, value, self.timeout) 
    File "/Users/kitsunde/.virtualenvs/media-pop/lib/python2.7/site-packages/johnny/backends/filebased.py", line 23, in set 
    return super(CacheClass, self).set(key, value, timeout=timeout, **kwargs) 
NameError: global name 'kwargs' is not defined 

如果我尝试使用基于一个记忆：

CACHES = { 
    'default' : { 
     'BACKEND': 'johnny.backends.locmem.LocMemCache', 
    } 
} 

连接只是挂在那里。我现在打开了零缓存。任何想法如何设置？

Answer 1

您在JohnnyCache文件的后端发现了一个错误。我有同样的错误，但是我设法让FileBased后端工作。我通过将这些代码放在settings.py中修正了这个错误：

import sys 
from johnny.backends import filebased 
def fixed_set(self, key, value, timeout=None): 
    if timeout is 0: 
     timeout = sys.maxint 
    return super(filebased.CacheClass, self).set(key, value, timeout=timeout) 
filebased.CacheClass.set = fixed_set 

但是，您应该报告错误。

注意：我推荐的memcached后端开箱即用，超级超快！

我不明白你为什么只有两个中间件。你不应该有这样的：

MIDDLEWARE_CLASSES = [ 
    'johnny.middleware.LocalStoreClearMiddleware', 
    'johnny.middleware.QueryCacheMiddleware', 
    'django.middleware.common.CommonMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.transaction.TransactionMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware', 
]