public function activateTariffPrivateNgAction($tariff_id)
 {
     $em = $this->getDoctrine()->getManager();
     $response = new Response(json_encode(array("result" => Tariff::activateTariffPrivateById($em, $tariff_id))));
     $response->headers->set('Content-Type', 'application/json');
     return $response;
 }
 public static function activateTariffPrivateById($em, $id)
 {
     $em->getConnection()->beginTransaction();
     try {
         $newTariff = $em->getRepository("RenovateMainBundle:Tariff")->find($id);
         $tariffs = Tariff::getTariffs($em, array('parentid' => 'true', 'userid' => $newTariff->getUserid(), 'active' => '1'));
         foreach ($tariffs as $tariff) {
             $tariff->cleanTariff($em);
             $em->remove($tariff);
             $em->flush();
         }
         $newTariff->setActive(TRUE);
         $newTariff->setActivated(new \DateTime());
         $em->persist($newTariff);
         $em->flush();
         $em->getConnection()->commit();
         return true;
     } catch (Exception $e) {
         $em->getConnection()->rollback();
         throw $e;
     }
 }