Sign in through GitHub

Please read for an updated status on RailsCasts:

Learn more or hide this

Applied Filters: Active Record x
Globalize3
Episode #338Apr 04, 201223 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)
Hackers Love Mass Assignment (revised)
Episode #26Mar 08, 201223 comments

Hackers Love Mass Assignment (revised)

One of the most common security issues in a Rails application is the mass-assignment vulnerability which allows a user to set any attribute on the model. Learn how to prevent it in this episode. (6 minutes)
HABTM Checkboxes (revised)
Episode #17Dec 22, 201156 comments

HABTM Checkboxes (revised)

A many-to-many association can be edited through check boxes in a form. Here I show how to do this with a has_many through association complete with clickable labels. (6 minutes)
Thinking Sphinx (revised)
Episode #120Dec 09, 201113 comments

Thinking Sphinx (revised)

Sphinx is a full-text search engine for use with MySQL or PostgreSQL. Learn how to add Thinking Sphinx by defining an index on your model and searching with various options. (10 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)
Refactoring & Dynamic Delegator
Episode #212May 03, 201023 comments

Refactoring & Dynamic Delegator

Learn how to refactor a set of conditional Active Record queries using a Dynamic Delegator. (7 minutes)
Validations in Rails 3
Episode #211Apr 26, 201029 comments

Validations in Rails 3

Rails 3 offers several new additions to validations. Here learn how to make a custom error_messages partial, reflect on validations, and clean up complex validations in a model. (9 minutes)