Hartl Michael, Prochazka Aurelius. RailsSpace

Addison-Wesley, 2008. — 564 p.Building a Social Networking Website with Ruby on Rails.
RailsSpace teaches you Ruby on Rails by developing a real-world application: RailsSpace, a social networking website aimed at the Rails community itself. We take you step by step, from the virtually static front page, through user registration and authentication, up to a highly dynamic site with user profiles, image upload, simple blogs, full-text and geographical search, and a friendship request system. Though certainly not intended as a serious competitor to the social networking heavyweights, RailsSpace is not a toy; it’s designed to show how to use Rails to make a web application suitable for deployment into a production environment.