Sequel.migration do up { DB.add_column :sites, :tipping_enabled, :boolean, default: false DB.add_column :sites, :tipping_paypal, String DB.add_column :sites, :tipping_bitcoin, String } down { DB.drop_column :sites, :tipping_enabled DB.drop_column :sites, :tipping_paypal DB.drop_column :sites, :tipping_bitcoin } end