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Mongoid (revised)
Episode #238Jul 28, 201276 comments

Mongoid (revised)

Mongoid is a Ruby gem for interacting with MongoDB. Here I show the basics of setting up an app, querying for records, adding embedded associations, overriding the id, and more. (9 minutes)
Fast Rails Commands
Episode #412Apr 04, 2013179 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)
Twitter Bootstrap Basics
Episode #328Feb 28, 2012138 comments

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)
Testing JavaScript with Jasmine (revised)
Episode #261Jun 28, 201266 comments

Testing JavaScript with Jasmine (revised)

The jasminerice gem makes it easy to test your JavaScript with Jasmine in a Rails application. Here I also cover jasmine-jquery and guard-jasmine. (11 minutes)
OAuth with Doorkeeper
Episode #353May 23, 201290 comments

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)
Strong Parameters
Episode #371Aug 03, 201275 comments

Strong Parameters

The strong_parameters gem is an improvement over attr_accessible to securely handle mass assignment even when you have complex authorization logic. The functionality will likely be added to Rails 4 so it is a good idea to learn how it works. (12 minutes)
Hstore
Episode #345Apr 24, 201299 comments

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)
PayPal Recurring Billing
Episode #289Oct 10, 2011142 comments

PayPal Recurring Billing

Here I show how to add PayPal recurring payments to an existing checkout process using PayPal's Express Checkout and the paypal-recurring gem. (24 minutes)
Console Tricks (revised)
Episode #48Jun 09, 201271 comments

Console Tricks (revised)

Here you will learn how to get the most out of the Rails console. I will also demonstrate several utility gems and how to use them without adding them to the Gemfile. (9 minutes)
Brakeman
Episode #358Jun 15, 201270 comments

Brakeman

The Brakeman gem will scan the Ruby code of a Rails application and alert you to common security vulnerabilities. (8 minutes)