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Public Activity
Episode #406Feb 13, 201374 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)
Tagging
Episode #382Sep 22, 201260 comments

Tagging

There are several gems to help implement tags in a Rails app. Here I show you how to integrate acts-as-taggable-on and then show how to do it from scratch. (11 minutes)
Active Record Reputation System
Episode #364Jul 09, 201265 comments

Active Record Reputation System

If you need to calculate an average user's rating or sum up a number of votes, consider using the activerecord-reputation-system gem. Here I will cover the basics and also briefly present a from-scratch solution. (10 minutes)
Squeel
Episode #354May 30, 201218 comments

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)
Migrating to PostgreSQL
Episode #342Apr 17, 201290 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)
Globalize3
Episode #338Apr 04, 201222 comments

Globalize3

Rails has great internationalization (I18n) support making it easy to translate static text into other languages, but how do we translate database content? Learn how using Globalize 3 in this episode. (5 minutes)
MetaWhere & MetaSearch
Episode #251Jan 31, 201142 comments

MetaWhere & MetaSearch

MetaWhere provides a way to do complex find conditions without SQL in Active Record. MetaSearch makes it easy to create search forms with many find options. (8 minutes)
ActiveRecord::Relation Walkthrough
Episode #239Nov 07, 201021 comments

ActiveRecord::Relation Walkthrough

The new Active Record query methods in Rails 3 might seem like magic at first. But in this episode I unravel how it works by browsing the Rails 3 source code. (11 minutes)
Multistep Forms
Episode #217Jun 07, 201054 comments

Multistep Forms

See how to create a multi-step (wizard) form from scratch in this episode. (15 minutes)
Advanced Queries in Rails 3
Episode #215May 24, 201021 comments

Advanced Queries in Rails 3

Learn some advanced techniques regarding named scopes and get an introduction to Arel in this episode. (9 minutes)