public function updateUser(User $user)
{
$queryBuilder = $this->connection->createQueryBuilder();
$queryBuilder->update('users', 'u')->set('u.first_name', ':first_name')->set('u.last_name', ':last_name')->where('u.id = :id')->setParameter('first_name', $user->getFirstName())->setParameter('last_name', $user->getLastName())->setParameter('id', $user->getId());
return $queryBuilder->execute();
}
