private function applyLegacyFilter($pKey, $pVal, CronkGridTemplateWorker $template)
 {
     $m = array();
     if (preg_match('@^(.+)-value$@', $pKey, $m)) {
         // Fieldname (xml field name)
         $name = $m[1];
         // The value
         $val = $pVal;
         // Operator
         $op = array_key_exists($name . '-operator', $this->params_array) ? $this->params_array[$name . '-operator'] : null;
         // Add a template worker condition
         $template->setCondition($name, $val, $op);
     }
 }