class ActionDispatch::Session::CacheStore

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.

Public Class Methods

new(app, options = {}) click to toggle source

Create a new store. The cache to use can be passed in the :cache option. If it is not specified, Rails.cache will be used.

# File lib/action_dispatch/middleware/session/cache_store.rb, line 11
def initialize(app, options = {})
  @cache = options[:cache] || Rails.cache
  options[:expire_after] ||= @cache.options[:expires_in]
  super
end

Public Instance Methods

destroy_session(env, sid, options) click to toggle source

Remove a session from the cache.

# File lib/action_dispatch/middleware/session/cache_store.rb, line 37
def destroy_session(env, sid, options)
  @cache.delete(cache_key(sid))
  generate_sid
end
get_session(env, sid) click to toggle source

Get a session from the cache.

# File lib/action_dispatch/middleware/session/cache_store.rb, line 18
def get_session(env, sid)
  unless sid and session = @cache.read(cache_key(sid))
    sid, session = generate_sid, {}
  end
  [sid, session]
end
set_session(env, sid, session, options) click to toggle source

Set a session in the cache.

# File lib/action_dispatch/middleware/session/cache_store.rb, line 26
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

Private Instance Methods

cache_key(sid) click to toggle source

Turn the session id into a cache key.

# File lib/action_dispatch/middleware/session/cache_store.rb, line 44
def cache_key(sid)
  "_session_id:#{sid}"
end