Don't expose primary id's with Rails' dom_id

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You use it like this:

dom_id(User)          # => "new_user"

dom_id(User.find(42)) # => "user_42"

It is this last example I have issues with. As it exposes the primary id of that record. Depending on your app, you might not care, but when you run a (SaaS) business, this might be sensitive business information you don't want exposed.

So I created a little gem, called .