code: public function decodeAttributeValue(DecodePropertyValueForWidgetEvent $event)
      {
          if (!$this->wantToHandle($event)) {
              return;
          }
  
          $metaModel = $this->getMetaModel($event->getEnvironment());
          $value     = $event->getValue();
  
          if (!($metaModel && $value)) {
              return;
          }
  
          $attribute = $metaModel->getAttributeById($value);
          if ($attribute) {
              $event->setValue($metaModel->getTableName() .'_' . $attribute->getColName());
          }
      }
docs: Translates an attribute id to a generated alias.
  
  @param DecodePropertyValueForWidgetEvent $event The event.
  
  @return void