rosa-build/lib/modules/models/owner.rb

module Modules
  module Models
    module Owner
      extend ActiveSupport::Concern

      included do
        validates :owner, :presence => true
        after_create lambda { relations.create :actor_id => owner.id, :actor_type => owner.class.to_s, :role => 'admin' }
      end

    end
  end
end