Creating a social networking site often requires a self-referential association on the User model to define friends/followers. In this episode I show how to do exactly that. (14 minutes)

The acts_as_tree plugin provides many methods for handling a tree based association. In this episode I show how to build a navigation system with tabs, subpages, and breadcrumbs. (11 minutes)

Ever want to know what Rails is doing under the hood during a request? In this episode I show three different profiling tools: New Relic RPM, FiveRuns TuneUp, and Rack::Bug. (7 minutes)

Authentication can get very complex. In this episode I show how Authlogic can handle this complexity while you stay in control of how it is presented to the user. (14 minutes)

There is a lot more to Cucumber than I showed in an earlier episode. See how to refactor complex scenarios in this episode. (18 minutes)

Fixtures are external dependencies which can make tests brittle and difficult to read. In this episode I show a better alternative using factories to generate the needed records. (12 minutes)

You can improve the readability and remove duplication in RSpec by adding matchers and macros. Learn how in this episode. (18 minutes)

If you prefer writing integration tests in ruby instead of Cucumber's plain english, consider interacting with Webrat directly as I show in this episode. (7 minutes)

Cucumber is a high-level testing framework. In this episode we will create a new Rails application from scratch using behavior driven development. (15 minutes)

Polymorphic associations can be perplexing. In this episode I show you how to set it up in Active Record and then move to the controller and view layer. (8 minutes)