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Devise (revised)
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)
Active Record Reputation System
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)
Hstore
With hstore you can add schema-less data to PostgreSQL. This allows you to store model attributes without creating separate database columns. Watch how to do this using the activerecord-postgres-hstore gem.
(10 minutes)
Simple OmniAuth (revised)
OmniAuth makes it easy to do user authentication through a third party provider such as Twitter or Facebook. Learn a simple approach in this episode.
(11 minutes)
Twitter Bootstrap Basics
Twitter Bootstrap can help make beautiful web apps quickly by providing you with useful CSS and JavaScript. Here you will learn how to include it into Rails with the twitter-bootstrap-rails gem.
(10 minutes)
Bullet
Bullet will notify you of database queries that can potentially be improved through eager loading or counter cache column. A variety of notification alerts are supported.
(6 minutes)
Twitter Integration
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)
Queue Classic
PostgreSQL can act as a worker queue which can replace the need for a separate process to manage the background jobs. Here you will learn how to do this with the queue_classic gem.
(8 minutes)
OAuth with Doorkeeper
Doorkeeper makes it easy to create an OAuth 2 provider. This episode also shows how to setup OmniAuth as an OAuth client and use the oauth2 gem to communicate with an API.
(19 minutes)
Globalize3
Rails has great internationalization (I18n) support making it easy to translate static text into other languages, but how do we translate database content? Learn how using Globalize 3 in this episode.
(5 minutes)