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Contents
require 'action_dispatch/middleware/session/abstract_store'
module ActionDispatch
module Session
# Session store that uses an ActiveSupport::Cache::Store to store the sessions. This store is most useful
# if you don't store critical data in your sessions and you don't need them to live for extended periods
# of time.
class CacheStore < AbstractStore
# Create a new store. The cache to use can be passed in the <tt>:cache</tt> option. If it is
# not specified, <tt>Rails.cache</tt> will be used.
def initialize(app, options = {})
@cache = options[:cache] || Rails.cache
options[:expire_after] ||= @cache.options[:expires_in]
super
end
# Get a session from the cache.
def get_session(env, sid)
unless sid and session = @cache.read(cache_key(sid))
sid, session = generate_sid, {}
end
[sid, session]
end
# Set a session in the cache.
def set_session(env, sid, session, options)
key = cache_key(sid)
if session
@cache.write(key, session, :expires_in => options[:expire_after])
else
@cache.delete(key)
end
sid
end
# Remove a session from the cache.
def destroy_session(env, sid, options)
@cache.delete(cache_key(sid))
generate_sid
end
private
# Turn the session id into a cache key.
def cache_key(sid)
"_session_id:#{sid}"
end
end
end
end
Version data entries
98 entries across 94 versions & 9 rubygems