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I got really excited about DCI recently. I'm still not sure if I get it right, but let me try to describe the way it works and how it can improve our Rails applications. Here is the short version of this blog post: #controller action current_user.extend Buyer current_user.add_to_cart(product_id, quantity) DCI stands for Data Context Interaction. It was invented by Trygve Reenskaug, the same scien
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