public function getPermiso(PropelPDO $con = null) { if ($this->aPermiso === null && $this->fk_permiso_id !== null) { $c = new Criteria(PermisoPeer::DATABASE_NAME); $c->add(PermisoPeer::ID, $this->fk_permiso_id); $this->aPermiso = PermisoPeer::doSelectOne($c, $con); } return $this->aPermiso; }