public function existnameAction()
 {
     $name = $this->getRequest()->getParam('name');
     if (empty($name)) {
         throw new InvalidArgumentException('No name given');
     }
     $type = $this->getRequest()->getParam('type');
     if (empty($type)) {
         throw new InvalidArgumentException('No type given');
     }
     // Fetch user matching the username
     $exist = $this->_templateSrv->existName($name, $type);
     $this->view->data = $exist;
 }