Ruby on Rails and Stored Procedures

Hi!
Is there a way to use stored procedures with Ruby on Rails? I need this because the project I'm working on has some stored procedures already. I'm (almost) sure it can be done, but I can't find out how...I'm a RoR newbie!!

TIA

 

http://nasir.wordpress.com/2007/12/03/stored-procedures-and-rails/

 

Thanks! I'll try, but that's a two years old article, hope it will still work with Rails 2.2...