public static function onSocNetGroupDelete($groupId)
 {
     $storage = Driver::getInstance()->getStorageByGroupId($groupId);
     if (!$storage) {
         return;
     }
     $storage->delete(self::getActivityUserId());
     RightTable::deleteBatch(array('ACCESS_CODE' => "SG{$groupId}_" . SONET_ROLES_OWNER));
     RightTable::deleteBatch(array('ACCESS_CODE' => "SG{$groupId}_" . SONET_ROLES_MODERATOR));
     RightTable::deleteBatch(array('ACCESS_CODE' => "SG{$groupId}_" . SONET_ROLES_USER));
 }