public function viewEntityAction($className, $id)
    {
        $ids = explode(',', $id);
        $revisions = $this->getAuditReader()->findRevisions($className, $ids);

        return $this->render('SimpleThingsEntityAuditBundle:Audit:view_entity.html.twig', array(
            'id' => $id,
            'className' => $className,
            'revisions' => $revisions,
        ));
    }