rosa-build/db/migrate/20120111135443_add_settings_notifier_to_all_users.rb

class AddSettingsNotifierToAllUsers < ActiveRecord::Migration
  def self.up
    User.all.each do |user|
      user.create_notifier
    end
  end

  def self.down
    User.all.each do |user|
      user.notifier.destroy
    end
  end
end