public function precacheProperties(User $user)
 {
     $q = $this->getEntityManager()->createQuery('SELECT up.propertyValue, p.name FROM GotChosenSiteBundle:UserProfile up
          JOIN up.property p
          WHERE up.user = ?1');
     $q->setParameter(1, $user->getId());
     $results = $q->getResult();
     $properties = [];
     foreach ($results as $result) {
         $properties[$result['name']] = $result['propertyValue'];
     }
     $user->setCachedProperties($properties);
 }