states.rb

module States

  extend ActiveSupport::Concern

    included do
      state_machine :status, :initial => :new do

        event :confirm do
          transition :new => :confirmed #,  :if => lambda {|order| order.email.present?}
        end

        before_transition :new => :confirmed do |order|
          order.send :email_confirmation
          #order.send :notify
        end


        event :invoice do
          transition :confirmed => :invoiced
        end

        before_transition :confirmed => :invoiced do |order|
          #order.send :create_invoice
          #order.send :email_invoice
          #order.send :invoice_alert
          #order.send :notify
        end


        event :pay do
          transition :invoiced => :paid
        end

        before_transition :invoiced => :paid do |order|
          #order.send :email_paid
          #order.send :notify
        end



      end
    end

    module InstanceMethods
      def email_confirmation
        UserMailer.order_confirmed(self).deliver
      end


    end

end