A select menu is often used for setting a belongs_to association, but you should also consider using a text field with autocomple. Here I use jQuery UI and show two different solutions: client side and server side. (9 minutes)

Sometimes logic needs to be shared between the server-side (Ruby) and the client-side (JavaScript). Here I show how to run JavaScript directly in Ruby through ExecJS and therubyracer. (14 minutes)

Mercury allows you to edit a section of HTML directly in the web browser through a WYSIWYG editor. Here I show how to integrate Mercury into a Rails app and save the changes back to the database. (11 minutes)

Prawn is an excellent Ruby library for generating PDF documents. Here you will learn how to add it to a Rails application through a separate PDF renderer class. (11 minutes)

Mustache is a simple, logic-less templating language which allows you to use the same template for both Ruby and JavaScript. See how to set it up with a custom template handler in this episode. (17 minutes)

PJAX allows you to quickly update a section of a page using AJAX with automatic pushState support. Here I show how to use both pjax_rails and rack-pjax gems. (8 minutes)

Fixtures are external dependencies which can make tests brittle and difficult to read. In this episode I show how to use Factory Girl to generate the needed records directly in the tests. (9 minutes)

Nginx and Unicorn make a killer-combo for hosting a Rails application in production. Learn how to configure each in a Vagrant virtual machine in this episode. (19 minutes)

Vagrant allows you to run your Rails application and all of its dependencies in a portable, sharable environment. Use for development, set it up as a staging server, or experiment with a production setup. (11 minutes)

Few things are worse than seeing a "Something went wrong" 500 error on your production application. Here I show how to be notified when this happens using exception_notification and mention several other alternatives. (6 minutes)