middleware.py 文件源码

def __init__(self):
        """
        Middleware init is called once per server on startup - do the heavy
        lifting here.
        """
        # If disabled or not enabled raise MiddleWareNotUsed so django
        # processes next middleware.
        self.ENABLED = getattr(settings, 'BANS_ENABLED', False)
        self.DEBUG = getattr(settings, 'BANS_DEBUG', False)

        if not self.ENABLED:
            raise MiddlewareNotUsed("bans are not enabled via settings.py")

        if self.DEBUG:
            print "Bans status = enabled"

        # Populate various 'banish' buckets
        for ban in Ban.objects.all():
            if self.DEBUG:
                print ban
            cache.add('BAN:'+ban.address, '1', None)