Trouble on accessing the id value for a Tableless models

I am using Ruby on Rails 3 and I followed the Tableless models in Rails istructions in order to apply that to a my model Account.

All works, but if I do

@test = account.id

a debug of @test results in a nil value and seems not accessible at all.

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In a comment of this question @Wukerplank said:

You are right. I suppose id has a special status in ActiveRecord. I think it would only be set after the record is persisted in some database.

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How can I retrive\access the id attribute value?

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UPDATED

Trying and re-trying I discovered that a possible solution is to make all attributes 'attr_accessible' (if I make just the 'id', I get all other value 'nil'), but I think it is a very dangerous solution.

Anoth开发者_如何转开发er solution is to create a new class attribute that acts as the id, but why I have to do that if I have already the id?!

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Why don't you use ActiveModel instead? Check this screencast.