diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/middleware/session/cache_store.rb')
-rw-r--r-- | actionpack/lib/action_dispatch/middleware/session/cache_store.rb | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/session/cache_store.rb b/actionpack/lib/action_dispatch/middleware/session/cache_store.rb new file mode 100644 index 0000000000..1db6194271 --- /dev/null +++ b/actionpack/lib/action_dispatch/middleware/session/cache_store.rb @@ -0,0 +1,49 @@ +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) + sid ||= generate_sid + session = @cache.read(cache_key(sid)) + session ||= {} + [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 |