2007-08-17 by Jonathan Clarke -
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What the heck is ActiveRecord?
Gregg Pollack of Rails Envy has put together a great presentation about Active Record and object mapping. The synopsis of the screencast is
- Who invented ActiveRecord and why
- How to use ActiveRecord
- Basic model to table mapping
- has_many relationships
- Magical counter fields
- Many to many relationships
- has_many => through
- Polymorphic relationships
- acts_as_taggable
It takes about 25 minutes to go through the video so if you have some spare time during a lunchbreak grab some coffee, a sub and educate yourself. Enjoy.
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