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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)
CoffeeScript Basics
CoffeeScript allows you to write JavaScript in a concise, elegant fashion. Here I convert JavaScript code to CoffeeScript in a Rails 3.1 app.
(11 minutes)
Squeel
Squeel provides a comprehensive DSL for writing SQL queries in Ruby. It is built upon Arel giving you access to many of its powerful features.
(9 minutes)
Time Zones in Rails 2.1
In the past, time zones have been very difficult to work with, but no longer! Rails 2.1 brings with it great time zone support as you can see in this episode.
(6 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)
Pretty URLs with FriendlyId
If you are tired of model ids in the URL, overriding to_param can only get you so far. The friendly_id plugin can help by making it easy to generate a URL slug and maintain a history.
(7 minutes)
Foreman
Foreman can help manage multiple processes that your Rails app depends upon when running in development. It also provides an export command to move them into production.
(4 minutes)
Sass Basics
Sass extends CSS with variables, nesting, mixins and more. Here I show how to convert plain CSS to SCSS in a Rails 3.1 app.
(13 minutes)
How I Test
Here I show how I would add tests to the password reset feature created in the previous episode. I use RSpec, Capybara, Factory Girl, and Guard to make request, model, and mailer specs.
(15 minutes)
Active Admin
Active Admin allows you to quickly build an admin interface with just a few commands. Not only does it look great, but it is very customizable as shown in this episode.
(12 minutes)