Rails - Apr 2006 - checkbox with has_many

Hi,

How do I set up a checkbox to use a record with a has_many field?

For example, say I have a User which is an Active Record Model.  And
say it has many names.

class User < ActiveRecord::Base
  has_many :names
end

class Name < ActiveRecord::Base
  belongs_to :user
end

Say I want to update this user and I want checkboxes that give a
choice between different names.  How would I do that?

I would want to do something like this:

<%= check_box ''user'', ''names.name'', {},
0, ''Joe''  %> Joe
<%= check_box ''user'', ''names.name'', {},
0, ''Bob''  %> Bob
<%= check_box ''user'', ''names.name'', {},
0, ''Bill''  %> Bill

Thanks,
Frank