/**
  * Returns the inherited DefaultGroupHolderView
  *
  * @param SilvercartProductGroupPage $context Context
  * 
  * @return string
  */
 public function getDefaultGroupHolderViewInherited($context = null)
 {
     if (is_null($context)) {
         $context = $this;
     }
     $defaultGroupHolderView = $context->DefaultGroupHolderView;
     if (empty($defaultGroupHolderView) || SilvercartGroupViewHandler::getGroupHolderView($defaultGroupHolderView) === false) {
         if ($context->Parent() instanceof SilvercartProductGroupPage || $context->Parent() instanceof SilvercartProductGroupHolder) {
             $defaultGroupHolderView = $this->getDefaultGroupHolderViewInherited($context->Parent());
         } else {
             $defaultGroupHolderView = SilvercartGroupViewHandler::getDefaultGroupHolderView();
         }
     }
     return $defaultGroupHolderView;
 }