Latest Screencasts

Showing validation errors inline as the user is filling out the form can lead to a better use experience. Learn how to do this using the Client Side Validations gem.

Mechanize extends the power of Nokogiri allowing you to interact with multiple pages on the site: click links, submit forms, etc.

Over time a CSS file can become large and filled with unused selectors. In this episode I show how to use the Deadweight gem to determine which CSS selects you can remove.

Security is important! Here I show seven different security flaws which are common to Rails applications ranging from mass assignment to CSRF protection.

Screen scraping is not pretty, but sometimes it's your only option to extract content from an external site. In this episode I show you how to fetch product prices using ScrAPI.

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.

Rails 2.3 brings us much of the same functionality as the Rails Engines plugin. Learn how to embed one application into another in this episode.

This episode is the first in a series on handling the checkout process for orders. Here we show how to complete purchases through PayPal's Website Payments Standard service.

Learn how to unleash the full potential of subdomains with the subdomain-fu Rails plugin in this episode.

Sometimes you need to display an administrative announcement to every page on the site and give the users the ability to hide the announcement. See how in this episode.