private function sendEmail($user)
{
$gradeService = $this->get('GradeService');
$query = new GradeQuery();
$query->setParentId($user->getId());
$message = \Swift_Message::newInstance()->setSubject('St. Sergius School. Grades.')->setFrom('*****@*****.**')->setTo($user->getEmail())->setBody($this->renderView('mail/gradesReport.html.twig', array('gradeResult' => $gradeService->obtainGrades($query), 'user' => $user)), 'text/html');
$this->get('mailer')->send($message);
return;
}