How to localize activerecord model value with Rails 3

I want to localize model values within form helpers.

For ex开发者_Python百科ample I have 2 models, Role and User, defined by the relation : role has_many users.

To create a new user I have in my controller something like this :

@user = User.new
@roles = Role.all # role title return values "admin" or "customer" only

And in my form I have something like this :

f.collection_select :role_id, @roles, :id, :title, {:selected => (@user.role)}

How can I localize role title values?

I used to set my localization in config/locales files. Can I set activerecord model values in this way?

Thank you for your help!

Jeremy.

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Globalize2 is one solution for data i18n. I've not used it though, so don't ask me if it eats your wife.