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Polymorphic Association (revised)
A polymorphic association allows a model to belong_to different types of other models. Here I show how to make a single comment model belong to articles, photos, and events.
(11 minutes)
Polymorphic Association
Polymorphic associations can be perplexing. In this episode I show you how to set it up in Active Record and then move to the controller and view layer.
(8 minutes)