If you need to calculate an average user's rating or sum up a number of votes, consider using the activerecord-reputation-system gem. Here I will cover the basics and also briefly present a from-scratch solution. (10 minutes)

Devise is one of the most popular authentication plugins for Rails. Here I show how to set it up with a User model and configure the modules, views, routes, and more. (8 minutes)

This episode builds on last week's episodes and shows how to integrate Facebook further through the Open Graph protocol. You will also learn how to tunnel your local server and move Facebook communication into a background process. (11 minutes)

As you will see it is easy to add a CSV export option to Rails. Here I also show how to export for Excel in a variety of formats. (6 minutes)

The jasminerice gem makes it easy to test your JavaScript with Jasmine in a Rails application. Here I also cover jasmine-jquery and guard-jasmine. (11 minutes)

Learn how to use the Facebook Graph API with the Koala gem to fetch data from Facebook and post content through a user. Here I delve into permissions, error handling, and more. (14 minutes)

This will show how to create a new facebook application and configure it. Then add some authentication with the omniauth-facebook gem and top it off with a client-side authentication using the JavaScript SDK. (12 minutes)

A destroy link in Rails does not work without JavaScript. In this episode I show two techniques for gracefully degrading destroy links: button_to and a delete action. (8 minutes)

Here I show how to integrate Twitter into a Rails app. This includes fetching data, caching it, and even how to authenticate as a user signing in to your application through Twitter. (14 minutes)

The Brakeman gem will scan the Ruby code of a Rails application and alert you to common security vulnerabilities. (8 minutes)