attrs = { "id" => relation.id, "visible" => relation.visible, "version" => relation.version, "changeset" => relation.changeset_id, "timestamp" => relation.timestamp.xmlschema, "user" => relation.changeset.user.display_name, "uid" => relation.changeset.user_id } xml.relation(attrs) do |r| relation.relation_members.each do |m| r.member(:type => m.member_type.downcase, :ref => m.member_id, :role => m.member_role) end relation.tags.each do |k, v| r.tag(:k => k, :v => v) end end