gistfile1.rb

class Order < ActiveRecord::Base
  belongs_to :user
  has_many :items, :class_name => "OrderItem"

  state_machine :state, :initial => :unordered do
    event :prepare_to_order do
      transition :unordered => :to_order
    end

    state :unordered
    state :to_order do
      validates_presence_of :email
      validates_presence_of :firstname
      validates_presence_of :lastname
      validates_presence_of :street
      validates_presence_of :city
      validates_presence_of :postcode
    end
    state :to_pay
    state :paid
    state :confirmed
    state :pending
    state :in_producer
    state :with_courier
  end

  state_machine :dotpay_state, :initial => :dotpay_null, :namespace => :dotpay do
    state :dotpay_null
    state :dotpay_new
    state :dotpay_done
    state :dotpay_rejected
    state :dotpay_canceled
    state :dotpay_complaint
  end

  def destroy_order_item(id)
    self.items.find(id).destroy
  end
end