public function indexAction(Request $request)
{
$dateRange = new StatsDateRange();
$dateRange->setFromRequest($request);
$repositoryBuilder = new VisitorSessionRanTreeVersionRepositoryBuilder();
$repositoryBuilder->setDateRange($dateRange);
$doctrine = $this->getDoctrine()->getManager();
$treeRepo = $doctrine->getRepository('QuestionKeyBundle:VisitorSessionRanTreeVersion');
$sessions = $treeRepo->findByBuilder($repositoryBuilder);
return $this->render('QuestionKeyBundle:AdminVisitorSessionRanTreeVersionList:index.html.twig', array('dateRange' => $dateRange, 'sessionRanTreeVersions' => $sessions));
}
