RailsCasts Pro episodes are now free!

Learn more or hide this

Applied Filters: Free Episodes x
Foundation
Episode #417 – Jun 16, 2013 – 333 comments

Foundation

ZURB's Foundation is a front-end for quickly building applications and prototypes. It is similar to Twitter Bootstrap but uses Sass instead of LESS. Here you will learn the basics of the grid system, navigation, tooltips and more. (11 minutes)
Upgrading to Rails 4
Episode #415 – May 06, 2013 – 211 comments

Upgrading to Rails 4

With the release of Rails 4.0.0.rc1 it's time to try it out and report any bugs. Here I walk you through the steps to upgrade a Rails 3.2 application to Rails 4. (12 minutes)
Fast Rails Commands
Episode #412 – Apr 04, 2013 – 179 comments

Fast Rails Commands

Rails commands, such as generators, migrations, and tests, have a tendency to be slow because they need to load the Rails app each time. Here I show three tools to make this faster: Zeus, Spring, and Commands. (8 minutes)
Active Model Serializers
Episode #409 – Mar 09, 2013 – 139 comments

Active Model Serializers

The ActiveModel::Serializers gem can help you build JSON APIs through serializer objects. This provides a dedicated place to fully customize the JSON output. (10 minutes)
Public Activity
Episode #406 – Feb 13, 2013 – 155 comments

Public Activity

Learn how to easily add a user activity feed using the public_activity gem. Here I show both the default setup using model callbacks and a manual way to trigger activities. (10 minutes)
Better Errors & RailsPanel
Episode #402 – Jan 25, 2013 – 131 comments

Better Errors & RailsPanel

Here we take a look at two tools to aid us in development: Better Errors which makes it easier than ever to debug exceptions, and RailsPanel, a Chrome extension to see Rails requests. (8 minutes)
What's New in Rails 4
Episode #400 – Jan 04, 2013 – 115 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)
Importing CSV and Excel
Episode #396 – Dec 08, 2012 – 176 comments

Importing CSV and Excel

Allow users to import records into the database by uploading a CSV or Excel document. Here I show how to use Roo to parse these files and present a solution for validations. (10 minutes)
Guest User Record
Episode #393 – Nov 21, 2012 – 101 comments

Guest User Record

Instead of presenting a sign up form to the user, consider creating a temporary guest record so the user can try out the application without filling in their information up front. They can then become a permanent member afterwards. (9 minutes)
Turbolinks
Episode #390 – Nov 05, 2012 – 114 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)