+
+ def history
+ response.headers["Content-Type"] = 'application/xml'
+ node = Node.find(params[:id])
+
+ unless node
+ render :nothing => true, :staus => 404
+ return
+ end
+
+ doc = get_xml_doc
+
+ node.old_nodes.each do |old_node|
+ doc.root << old_node.to_xml_node
+ end
+
+ render :text => doc.to_s
+ end
+
+