/**
  * Does the query builder have a translation join
  *
  * @param ProxyQueryInterface $queryBuilder
  * @return bool
  */
 private function hasJoin(ProxyQueryInterface $queryBuilder, $alias)
 {
     $joins = $queryBuilder->getDQLPart('join');
     if (!isset($joins[$alias])) {
         return false;
     }
     foreach ($joins[$alias] as $join) {
         if ('trans' === $join->getAlias()) {
             return true;
         }
     }
     return false;
 }