class CreateCheckoutStatHasUsers < ActiveRecord::Migration[4.2] def self.up create_table :checkout_stat_has_users do |t| t.integer :user_checkout_stat_id, null: false t.integer :user_id, null: false t.integer :checkouts_count, default: 0, null: false t.timestamps end add_index :checkout_stat_has_users, :user_checkout_stat_id add_index :checkout_stat_has_users, :user_id end def self.down drop_table :checkout_stat_has_users end end