If you have frequently changing data on the server side, it's helpful to automatically display this to the user as well. Here I show how to accomplish this with polling in jQuery.

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

Here we finish up this upgrade series by removing all deprecation warnings and fixing some problems in the view.

Here we continue upgrading an application to Rails 3 by getting our specs up and running and going through the rails_upgrade plugin.

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.

Embedded flash notices, permanent cookies, and the details of respond_with are in this episode.

There are a number of libraries to help create graphs. Here I show how to integrate Highcharts into a Rails app.

The router in Rails 3 is fully compatible with Rack. Learn how to embed Sinatra into an app, handle redirects, and improve on Rails Metal.

It is now possible to add subdomains to Rails 3 without the use of additional plugins. Learn how in this episode.

Generating PDFs in plain Ruby can be a lot of work. Instead, consider generating PDFs from HTML using PDFKit.