# This migration comes from refinery_blog (originally 20110803223529) class AddPrimaryKeyToCategorizations < ActiveRecord::Migration def up unless Refinery::Categorization.column_names.include?("id") add_column Refinery::Categorization.table_name, :id, :primary_key end end def down if Refinery::Categorization.column_names.include?("id") remove_column Refinery::Categorization.table_name, :id end end end