Podcast: Play in new window | Download Rails Engines are a terrific way of mounting on Ruby on Rails application into another. A Rails Engine is basically a Rails application with an Engine class installed. The main application—the application your engine is mounted into—uses the generators, rake tasks, and routes from engines automatically. As of Rails 3.1, rake tasks are provided... 

Podcast: Play in new window | Download Ruby has a package manager for its libraries or gems. It should be a concept familiar with other package managers like apt, yum, or yast. Gems are libraries for Ruby. Many gems are built to extend Ruby on Rails and are a great way to add functionality to your application. You can see available gems at RubyGems.org. In order to install Rails, you typically...