Latest Screencasts

In Rails 3 the non-database functionality of Active Record is extracted out into Active Model. This allows you to cleanly add validations and other features to tableless models. Watch this screencast

We escape multi-word search terms before querying Google Blog Search. Watch this screencast

ActiveRecord 3.0’s big new feature is a brand new finder API that is backed by ActiveRelation, or Arel for short. Arel is a Ruby implementation of relational algebra. This week’s screencast will be a hands-on demonstration of the new ActiveRecord finder API and an article that will cover the topic... Watch this screencast

We refactor the association between Brand and Search so we don’t run the search for duplicate search terms. Watch this screencast

Ryan Bates demonstrated how to build a form with nested attributes in Ruby on Rails with Prototype. This screencast demonstrates how to refactor that form into usage of jQuery. Watch this screencast

We add the capability to filter search results based on the brand they belong to and the source they came from. Watch this screencast

Handling multiple models in a single form is much easier with the accepts_nested_attributes_for method. See how to use this method to handle nested model fields. Watch this screencast

MongoDB is a document based database engine. Learn how to access it through MongoMapper in this episode. Watch this screencast

If you want to create a model without a database backend, you simply need to define a couple methods in the model like I show in this episode. Watch this screencast

We add logic to avoid fetching duplicate search results from Google Blog search. Watch this screencast