# -*- encoding : utf-8 -*- class UpgradeDevise < ActiveRecord::Migration def up remove_column :users, :remember_token if User.column_names.include?('remember_token') add_column :users, :reset_password_sent_at, :datetime unless User.column_names.include?('reset_password_sent_at') end def down remove_column :users, :reset_password_sent_at if User.column_names.include?('reset_password_sent_at') add_column :users, :remember_token, :string unless User.column_names.include?('remember_token') end end