The current version of the RSS 2.0 specification (2.0.11), published on March 30, 2009.| www.rssboard.org
Active Record AssociationsThis guide covers the association features of Active Record.After reading this guide, you will know how to: Declare associations between Active Record models. Understand the various types of Active Record associations. Use the methods added to your models by creating associations.| Ruby on Rails Guides
Getting Started with RailsThis guide covers getting up and running with Ruby on Rails.After reading this guide, you will know: How to install Rails, create a new Rails application, and connect your application to a database. The general layout of a Rails application. The basic principles of MVC (Model, View, Controller) and RESTful design. How to quickly generate the starting pieces of a Rails application. How to deploy your app to production using Kamal.| Ruby on Rails Guides
Multiple Databases with Active RecordThis guide covers using multiple databases with your Rails application.After reading this guide you will know: How to set up your application for multiple databases. How automatic connection switching works. How to use horizontal sharding for multiple databases. What features are supported and what's still a work in progress.| Ruby on Rails Guides
Configuring Rails ApplicationsThis guide covers the configuration and initialization features available to Rails applications.After reading this guide, you will know: How to adjust the behavior of your Rails applications. How to add additional code to be run at application start time.| Ruby on Rails Guides
