private function updateStatusForUsers()
 {
     $userStatus = Config::get('userStatus');
     $user = new UserHelper();
     $users = $user->findUsersInDatabase();
     foreach ($users as $feideUsername => $arrayOfPossibleUsernamesForAUser) {
         $userHasFolderOnDisk = $user->hasFolderOnDisk($arrayOfPossibleUsernamesForAUser);
         $query = "SELECT userName FROM tblUser WHERE userName LIKE '" . $feideUsername . "'";
         $userExistsInRelayDb = $this->relaySQL->query($query);
         $criteria = array(UsersSchema::USERNAME => $feideUsername);
         $userDocument = $this->mongo->findOne($criteria);
         $statusFrom = $userDocument[UsersSchema::STATUS];
         if ($userExistsInRelayDb && !$userHasFolderOnDisk) {
             if ($userDocument[UsersSchema::STATUS] == 1) {
                 continue;
             } else {
                 $statusTo = 1;
             }
         } elseif ($userExistsInRelayDb && $userHasFolderOnDisk) {
             if ($userDocument[UsersSchema::STATUS] == 2) {
                 continue;
             } else {
                 $statusTo = 2;
             }
         } elseif (!$userExistsInRelayDb && $userHasFolderOnDisk) {
             if ($userDocument[UsersSchema::STATUS] == 3) {
                 continue;
             } else {
                 $statusTo = 3;
             }
         } elseif (!$userExistsInRelayDb && !$userHasFolderOnDisk) {
             if ($userDocument[UsersSchema::STATUS] == 4) {
                 continue;
             } else {
                 $statusTo = 4;
             }
         } else {
             $this->LogError("None matched when checking statuses. This should never happen.");
             continue;
         }
         $success = $this->mongo->update($criteria, '$set', UsersSchema::STATUS, $statusTo, 0);
         if ($success) {
             $this->LogInfo("Changed status for " . $userDocument[UsersSchema::USERNAME] . " from: " . $userStatus[$statusFrom] . " to: " . $userStatus[$statusTo]);
             $this->numberOfStatusChanges = $this->numberOfStatusChanges + 1;
         }
     }
 }