require 'subj_models/concerns/comprising_external_id' module SubjModels module OrderDeliveryPickup def self.included(including_class) including_class.class_eval do include SubjModels::ComprisingExternalId belongs_to :order belongs_to :office scope :order_id, -> (order_id) { parent_id_scope("order", order_id) } end end def to_s id.to_s # TODO end end end