Chris@1295: class AddSettingsUpdatedOn < ActiveRecord::Migration
Chris@1295:   def self.up
Chris@1295:     add_column :settings, :updated_on, :timestamp
Chris@1295:     # set updated_on
Chris@1295:     Setting.all.each(&:save)
Chris@1295:   end
Chris@1295: 
Chris@1295:   def self.down
Chris@1295:     remove_column :settings, :updated_on
Chris@1295:   end
Chris@1295: end