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In this first EnvyCast we take a look at several advanced features of ActiveRecord, including: loading large data sets, foreign keys, using and abusing include, counter caching properly, polymorphic associations, single table inheritance, new rails 2.1 features.

Active Record models are the foundation of your Rails application. With a well-designed layer of models, your application is solid. You can make business logic changes easier, keep the integrity of your data in check, and better optimize the interaction with your database. Learn how to get the most out of the Active Record from Ryan Bates, one of the most experienced Rails developer (and screencasters) in the community.