class AddWebsiteToUserProfiles < ActiveRecord::Migration[4.2] def up add_column :user_profiles, :website, :string execute "UPDATE user_profiles SET website = (SELECT website FROM users where user_profiles.user_id = users.id)" remove_column :users, :website end def down add_column :users, :website, :string execute "UPDATE users SET website = (SELECT website FROM user_profiles where user_profiles.user_id = users.id)" remove_column :user_profiles, :website end end