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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)
Destroy without JavaScript (revised)
A destroy link in Rails does not work without JavaScript. In this episode I show two techniques for gracefully degrading destroy links: button_to and a delete action.
(8 minutes)