# frozen_string_literal: true class AddTopicAllowedGroups < ActiveRecord::Migration[4.2] def change create_table :topic_allowed_groups, force: true do |t| # oops t.integer :group_id, null: false t.integer :topic_id, null: false end add_index :topic_allowed_groups, %i[group_id topic_id], unique: true add_index :topic_allowed_groups, %i[topic_id group_id], unique: true end end