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51 lines
1.5 KiB
Ruby
51 lines
1.5 KiB
Ruby
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require 'action_dispatch/middleware/session/abstract_store'
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require 'rack/session/memcache'
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module ActionDispatch
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module Session
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# Session store that uses an ActiveSupport::Cache::Store to store the sessions. This store is most useful
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# if you don't store critical data in your sessions and you don't need them to live for extended periods
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# of time.
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class CacheStore < AbstractStore
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# Create a new store. The cache to use can be passed in the <tt>:cache</tt> option. If it is
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# not specified, <tt>Rails.cache</tt> will be used.
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def initialize(app, options = {})
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@cache = options[:cache] || Rails.cache
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options[:expire_after] ||= @cache.options[:expires_in]
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super
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end
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# Get a session from the cache.
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def get_session(env, sid)
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sid ||= generate_sid
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session = @cache.read(cache_key(sid))
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session ||= {}
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[sid, session]
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end
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# Set a session in the cache.
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def set_session(env, sid, session, options)
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key = cache_key(sid)
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if session
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@cache.write(key, session, :expires_in => options[:expire_after])
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else
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@cache.delete(key)
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end
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sid
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end
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# Remove a session from the cache.
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def destroy_session(env, sid, options)
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@cache.delete(cache_key(sid))
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generate_sid
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end
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private
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# Turn the session id into a cache key.
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def cache_key(sid)
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"_session_id:#{sid}"
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end
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end
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end
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end
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