此解决方案适用于1.7之前的Django版本
这是我写的一种解决方案，用于执行你在自己的一些项目中正在谈论的事情：
def expire_view_cache(view_name, args=[], namespace=None, key_prefix=None): """ This function allows you to invalidate any view-level cache. view_name: view function you wish to invalidate or it's named url pattern args: any arguments passed to the view function namepace: optioal, if an application namespace is needed key prefix: for the @cache_page decorator for the function (if any) """ from django.core.urlresolvers import reverse from django.http import HttpRequest from django.utils.cache import get_cache_key from django.core.cache import cache # create a fake request object request = HttpRequest() # Loookup the request path: if namespace: view_name = namespace + ":" + view_name request.path = reverse(view_name, args=args) # get cache key, expire if the cached item exists: key = get_cache_key(request, key_prefix=key_prefix) if key: if cache.get(key): # Delete the cache entry. # # Note that there is a possible race condition here, as another # process / thread may have refreshed the cache between # the call to cache.get() above, and the cache.set(key, None) # below. This may lead to unexpected performance problems under # severe load. cache.set(key, None, 0) return True return False
Django会为视图请求的这些缓存设置密钥，因此该操作是为缓存的视图创建一个伪造的请求对象，并使用该对象来获取缓存密钥，然后使其过期。
要以你正在谈论的方式使用它，请尝试以下操作：
from django.db.models.signals import post_savefrom blog.models import Entrydef invalidate_blog_index(sender, **kwargs): expire_view_cache("blog")post_save.connect(invalidate_portfolio_index, sender=Entry)因此，基本上，只要保存了Blog Entry对象，就会调用invalidate_blog_index，并且缓存的视图也会过期。注意：尚未对此进行广泛测试，但到目前为止对我来说还不错。
