ruby script/plugin install http://svn1.hosted-projects.com/fcheung/smart_session_store/trunk/

Step 1
======

Generate your sessions table using rake db:sessions:create

Step 2
======
Add the code below after the initializer config section:

ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS.
  update(:database_manager => SmartSessionStore)

Finally, depending on your database type, add

SmartSessionStore.session_class = MysqlSession
#or
SmartSessionStore.session_class = PostgresqlSession
#or
SmartSessionStore.session_class = OracleSession

after the initializer section in environment.rb

Step 3 (optional)
==============
If you want to use a database separate from your default one to store your sessions, specify a configuration in your database.yml file (say sessions), and establish the connection on SqlSession in environment.rb:

SqlSession.establish_connection :sessions

There is currently no advanced documentation for this plugin.