class AddUserToProxyExercise < ActiveRecord::Migration[5.2] def change add_reference :proxy_exercises, :user, polymorphic: true, index: true add_column :proxy_exercises, :public, :boolean, null: false, default: false internal_user = InternalUser.find_by(id: 46) ProxyExercise.update_all(user_id: internal_user.id, user_type: internal_user.class.name) end end