public function ingresar_a_carpeta($id_carpeta, $data)
 {
     foreach ($data as $key => $value) {
         $c = new CarpetaData();
         $c->carpeta_id = $id_carpeta;
         $c->data_id = $value->id;
         $c->objeto_json = json_encode($value);
         if (!$c->save()) {
             $errores[] = $value;
         }
     }
     if (isset($errores)) {
         return $errores;
     }
     return true;
 }