protected function getExceptionView($className)
 {
     // Check if a special view exists for this class
     if (Controller::viewExists('error/' . $className . '.html.php')) {
         return 'error/' . $className . '.html.php';
     }
     // Return the default view if non can be found
     if (!get_parent_class($className)) {
         return 'error/Exception.html.php';
     }
     // Try with the parent class
     return $this->getExceptionView(get_parent_class($className));
 }