class ActionDispatch::Session::CacheStore

Parent:: ActionDispatch::Session::AbstractStore

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 = {}) Show 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.

Calls superclass method ActionDispatch::Session::Compatibility.new

# File actionpack/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) Show source

Remove a session from the cache.

# File actionpack/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) Show source

Get a session from the cache.

# File actionpack/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) Show source

Set a session in the cache.

# File actionpack/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