I'm practicing node.js. It's like early days of Rails. One thing that stops me to jump in this bandwagon is that my lack of knowledge of javascript. Anyway, after mastering node.js world technique, I want to go use event techniques in ruby in the future. I'm sure that ruby's virtual machine will evolve.
How to get composite keys to play with Rails view helpers
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The `to_key` method from ActiveModel allows custom objects with composite
primary keys to integrate natively into Rails helpers.