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redis_cache.py
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redis_cache.py
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import redis
from django.conf import settings
from django.core.cache.backends.base import BaseCache
REDIS_PREFIX = getattr(settings, 'REDIS_CACHE_PREFIX', '')
class CacheClass(BaseCache):
def __init__(self, server, params):
BaseCache.__init__(self, params)
self.server = redis.Redis(
host=server.split(':')[0],
port=server.split(':')[1],
db=params.get('db',0)
)
def prefix(self, key):
return '%s%s' % (
REDIS_PREFIX,
key
)
def add(self, key, value, timeout=None):
if self.server.exists(key):
return False
else:
self.set(key,value,timeout)
return True
def get(self, key, default=None):
return self.server.get(key) or default
def set(self, key, value, timeout=None):
self.server.set(key, value)
if timeout is not None:
self.server.expire(key, timeout)
def delete(self, key):
self.server.delete(self.prefix(key))