<moya xmlns="http://moyaproject.com"
      xmlns:let="http://moyaproject.com/let"
      xmlns:db="http://moyaproject.com/db"
      xmlns:html="http://moyaproject.com/html">

    <macro libname="get_comment_object">
        <db:transaction>
            <db:get-or-create model="#CommentObject" dst="commentobject"
                let:namespace="namespace"
                let:object="object"
                initial="markup=markup, object_url=object_url"/>
        </db:transaction>
        <return value="commentobject"/>
    </macro>

</moya>