# frozen_string_literal: true class CreateTopicAllowedUsers < ActiveRecord::Migration[4.2] def change create_table :topic_allowed_users do |t| t.integer :user_id, null: false t.integer :topic_id, null: false t.timestamps null: false end add_index :topic_allowed_users, %i[topic_id user_id], unique: true add_index :topic_allowed_users, %i[user_id topic_id], unique: true end end