/**
  * @param string $theme
  * @param string $template
  * @return \OCA\TemplateEditor\Http\MailTemplateResponse
  */
 public function render($theme, $template)
 {
     try {
         $template = new MailTemplate($theme, $template);
         return $template->getResponse();
     } catch (\Exception $ex) {
         return new JSONResponse(array('message' => $ex->getMessage()), $ex->getCode());
     }
 }