Custom charge_extensions gives raise_validation_error

[Rubioli]

First of all, THANKS a lot for such a great gem!

In my application, I have an Order model and I'm trying to set up the charge_extensions just as your example, but I get:

pid=59586 tid=ows2z4q26 WARN: ActiveRecord::RecordInvalid: Validation failed: Order must exist

And raise_validation_error

This is my charge_extensions:

module ChargeExtensions
  extend ActiveSupport::Concern

  included do
    belongs_to :order
    after_create :fulfill_order
  end

  def fulfill_order
    order.fulfill!
  end
end

PS: do I need to have a column called fulfill in my Order model?

I appreciate any help and thanks in advanced

[excid3]

As the error states, you've added an Order relation and not populated it.