method
session_store=
rails latest stable - Class:
ActionController::SessionManagement::ClassMethods
session_store=(store)public
Set the session store to be used for keeping the session data between requests. By default, sessions are stored in browser cookies (:cookie_store), but you can also specify one of the other included stores (:active_record_store, :mem_cache_store, or your own custom class.
1Note
Using memcached as a session store
Because of Ruby's CGI library limitations, +store+ cannot have any configuration options. Basically this means that you cannot easily run memcached on a different port (or with any non-default settings for that matter).
You can bypass this limitation with this ugly hack (environment.rb):
cache_params = *([memcache_servers, memcache_options].flatten)
CACHE = MemCache.new(*cache_params)
ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS.merge!({ 'cache' => CACHE })
In your initializer block, just configure session_store normally:
config.session_store = :mem_cache_store
I think this should be fixed to work like +cache_store=+ does.