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What's New in Rails 4
Episode #400Jan 04, 2013115 comments

What's New in Rails 4

Rails 4.0 is still unfinished, but it is shaping up to become a great release. Here I show how to setup a new Rails 4.0 (edge) application and walk through many of its new features. (20 minutes)
Service Objects
Episode #398Dec 18, 2012114 comments

Service Objects

Models can quickly become a grab-bag of unrelated methods if behavior is constantly being pushed from the controller. Here I show how to refactor this using Concerns and Service Objects. (12 minutes)
Turbolinks
Episode #390Nov 05, 2012114 comments

Turbolinks

Turbolinks can make your Rails app feel faster by using JavaScript to replace the page content when clicking a link. It will be default in new Rails 4.0 applications, but here I show how to use it in Rails 3 and mention some of the gotchas. (7 minutes)
YAML Configuration (revised)
Episode #85Oct 14, 201298 comments

YAML Configuration (revised)

Keeping passwords and secret tokens in source control is a security risk. Here I show how to move these settings out into a YAML configuration file which can be loaded in as a hash or environment variables. (8 minutes)
Time Zones (revised)
Episode #106Oct 28, 201293 comments

Time Zones (revised)

Active Support makes it easy to work with time zones. Learn how to add a Time Zone select field to a user form and watch out for the gotchas. (7 minutes)
Migrating to PostgreSQL
Episode #342Apr 17, 2012137 comments

Migrating to PostgreSQL

Postgres is a feature-packed relational database that every Rails developer should consider using. Here you will learn how to install it, add it to a new application, and transition from an existing SQLite app using the "taps" gem. (8 minutes)
Request Specs and Capybara
Episode #257Mar 14, 201154 comments

Request Specs and Capybara

Request specs in RSpec are a great way to ensure the entire application stack is working properly. Here I also show how to use capybara with integrated JavaScript testing using Selenium. (13 minutes)
Rack App from Scratch
Episode #317Jan 16, 201242 comments

Rack App from Scratch

Rack comes with many helpful utilities such as request and response objects, various middleware, and MockRequest for testing. Here I cover all of these while building a Rack app from scratch. (15 minutes)
Exploring RubyGems
Episode #384Oct 07, 201284 comments

Exploring RubyGems

RubyGems can make it easy to add a feature to a Rails application, but it can also cause headaches down the road. Here I give some tips on researching gems to decide which one to choose, or when to do it from scratch. (7 minutes)
Guard
Episode #264May 02, 201157 comments

Guard

Guard watches files and runs a command after a file is modified. This allows you to automatically run tests in the background, restart your development server, reload the browser, and more. (8 minutes)