module QDM # app/models/qdm/entity.rb class Entity < Attribute include Mongoid::Document embedded_in :data_element field :id, type: String embeds_one :identifier, class_name: 'QDM::Identifier' field :qdmVersion, type: String, default: '5.5' def initialize(options = {}) super(options) # default id to the mongo ObjectId for this DataElement if it isnt already defined self.id = _id.to_s unless id? end end end