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Request specs in RSpec are a great way to ensure the entire application stack is working properly. Here I also show how to use capybara with integrated JavaScript testing using Selenium.

If you need pagination in Rails 3 try out Kaminari. It is a clean, flexible solution which uses scopes to flow nicely with Active Record queries. Did I mention it also works with Mongoid?

Password authentication is not too complicated to make from scratch, it will also help to get a better understanding of how it works.

OmniAuth is an easy way to add many different authentication services to your app. In this episode we start integrating it with Devise.

Inherited Resource simplifies RESTful controllers by providing default actions which can be customized through inheritance.

Here I walk you through adding the ability to sort table columns in ascending or descending order by clicking the header.

In the first part of this series on upgrading a Rails 2 application to Rails 3, we'll start off by setting up Rails 3.0 Release Candidate in a clean environment. The rails_upgrade plugin will then help us determine what needs upgrading.

If dates play an important role in your application, consider adding a date picker or calendar view as shown in this episode.

Learn how to refactor a set of conditional Active Record queries using a Dynamic Delegator.

Here we dive deeper into Devise by customizing how the views, routing, validations, and authentication works.