class AddBillingToOrders < ActiveRecord::Migration def change add_column :orders, :bill_id, :integer add_column :orders, :bill_number, :string add_column :orders, :bill_at, :datetime add_column :orders, :demande_rbt, :boolean add_column :orders, :bill_token, :string Order.where(:payment_type_id => 2).order("paid_at ASC").each do |order| order.generate_bill order.save end end end