Class: SimpleCache::RedisStore

Inherits:
Object
  • Object
show all
Defined in:
lib/simple_cache/redis_store.rb

Constant Summary collapse

Marshal = 
::SimpleCache::Marshal

Instance Method Summary collapse

Constructor Details

#initialize(redis) ⇒ RedisStore

Returns a new instance of RedisStore.



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# File 'lib/simple_cache/redis_store.rb', line 7

def initialize(redis)
  case redis
  when Redis, Redis::Namespace
    @redis = redis
  else 
    @redis = Redis.connect(:url => redis)
  end
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/simple_cache/redis_store.rb', line 16

def clear
  @redis.flushdb
end

#fetch(key, &block) ⇒ Object 



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# File 'lib/simple_cache/redis_store.rb', line 20

def fetch(key, &block)
  if value = @redis.get(Marshal.uid(key))
    Marshal.unmarshal(value)
  elsif block_given?
    yield self, key
  end
end

#store(key, value, max_age = nil) ⇒ Object 



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# File 'lib/simple_cache/redis_store.rb', line 28

def store(key, value, max_age = nil)
  cache_id = Marshal.uid(key)
  if value
    @redis.set cache_id, Marshal.marshal(value)
    @redis.expire cache_id, max_age if max_age
  else
    @redis.del cache_id
  end
  value
end