class DiscourseVersionCheck if rails4? include ActiveModel::Model else include ActiveAttr::Attributes include ActiveAttr::MassAssignment include ActiveModel::Serialization end attr_accessor :latest_version, :critical_updates, :installed_version, :installed_sha, :missing_versions_count, :updated_at, :version_check_pending unless rails4? def active_model_serializer DiscourseVersionCheckSerializer end end end