Question

I’m currently using the default cookies as my single sign on (SSO) but some users are getting strange errors after I push an update. I’m considering moving to active record to store sessions but was wondering how I tell rails that the sessions are in another database?

So if I store sessions via AR in App1DB how can all the other apps know thats where to look for sessions?

Answer 1

Rails most certainly does support database session storage.

In config/environment.rb, uncomment

# config.action_controller.session_store = :active_record_store 

Examining \actionpack-2.2.2\lib\action_controller\session\active_record_store.rb shows that CGI::Session::ActiveRecordStore::Session inherits from ActiveRecord::Base.

So at the end of config/environment.rb, you should be able to say

CGI::Session::ActiveRecordStore::Session.establish_connection(                               :adapter => 'mysql',                               :host => 'otherserver',                               :username => 'session_user',                               :password => '123ABC',                               :database => 'sessions') 

or

CGI::Session::ActiveRecordStore::Session.establish_connection(:sessions) 

to use a connect defined in config/database.yml

---

For example, add to config/database.yml:

 sessions_development:    adapter: mysql    host: otherserver    username: sessions_user    password: 123ABC    database: sessions 

Add to the end of config/environment.rb

 CGI::Session::ActiveRecordStore::Session.establish_connection('sessions_#{RAILS_ENV}')