public function consultarObjInstJSONAction()
 {
     $ObjetivoDao = new ObjetivosInstitucionalesDao($this->getDoctrine());
     $ObjetivosT = $ObjetivoDao->getObjInst();
     $numfilas = count($ObjetivosT);
     $uni = new ObjetivosInstitucionales();
     $i = 0;
     foreach ($ObjetivosT as $uni) {
         $rows[$i]['id'] = $uni->getIdobjInst();
         $rows[$i]['cell'] = array($uni->getIdobjInst(), $uni->getObjInstObjetivo());
         $i++;
     }
     $datos = json_encode($rows);
     $jsonresponse = '{
            "page":"1",
            "total":"1",
            "records":"' . $numfilas . '", 
            "rows":' . $datos . '}';
     $response = new Response($jsonresponse);
     return $response;
 }