function db_persist($params, $node)
 {
     // delegate to 'db_persist_form' tag
     return KDataBoundForm::db_persist_form($params, $node);
 }
 function db_persist_ex($params, $node)
 {
     if (count($node->children)) {
         die("ERROR: Tag \"" . $node->name . "\" is a self closing tag");
     }
     // delegate to 'db_persist_form' tag
     $node->name = 'db_persist';
     return KDataBoundForm::db_persist_form($params, $node);
 }