class ActionDispatch::Session::CacheStore
Action Dispatch Session
CacheStore
¶ ↑
A 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.
Options¶ ↑
-
cache
- The cache to use. If it is not specified,Rails.cache
will be used. -
expire_after
- The length of time a session will be stored before automatically expiring. By default, the:expires_in
option of the cache is used.
Public Class Methods
Source
# File lib/action_dispatch/middleware/session/cache_store.rb, line 23 def initialize(app, options = {}) @cache = options[:cache] || Rails.cache options[:expire_after] ||= @cache.options[:expires_in] super end
Calls superclass method
ActionDispatch::Session::Compatibility::new
Public Instance Methods
Source
# File lib/action_dispatch/middleware/session/cache_store.rb, line 49 def delete_session(env, sid, options) @cache.delete(cache_key(sid.private_id)) @cache.delete(cache_key(sid.public_id)) generate_sid end
Remove a session from the cache.
Source
# File lib/action_dispatch/middleware/session/cache_store.rb, line 30 def find_session(env, sid) unless sid && (session = get_session_with_fallback(sid)) sid, session = generate_sid, {} end [sid, session] end
Get a session from the cache.
Source
# File lib/action_dispatch/middleware/session/cache_store.rb, line 38 def write_session(env, sid, session, options) key = cache_key(sid.private_id) if session @cache.write(key, session, expires_in: options[:expire_after]) else @cache.delete(key) end sid end
Set a session in the cache.
Private Instance Methods
Source
# File lib/action_dispatch/middleware/session/cache_store.rb, line 57 def cache_key(id) "_session_id:#{id}" end
Turn the session id into a cache key.
Source
# File lib/action_dispatch/middleware/session/cache_store.rb, line 61 def get_session_with_fallback(sid) @cache.read(cache_key(sid.private_id)) || @cache.read(cache_key(sid.public_id)) end