Rails - Jan 2006 - adding an attribute to a ActiveRecord::Base instance

I have an instance of ActiveRecord::Base called Site.  Is it possible to 
add attributes to that class in code, like so

class Site < ActiveRecord::Base
  belongs_to :user
  attr_accessor :type_site_boolop, :type_program_boolop, :books_only

I don''t want those additional attributed in the DB.  The problem is
that
given

@site = Site.new
@site.type_site_boolop = ''foo''

@site.attributes does not include type_site_boolop.  Any ideas?

Thanks again, I''m new too Rails and this forum has been most helpful 
already!

Felix

-- 
Posted via http://www.ruby-forum.com/.