getJoinColumns example

/** * Returns the basic filter query builder, with all the rules (tokens) applied * * @param array $tokens * @param array $orderBy * * @return QueryBuilder */
    public function getFilterQueryBuilder($tokens, $orderBy)
    {
        $joinEntities = $this->getDqlHelper()->getJoinColumns($tokens);
        $orderByInfo = null;

        if (isset($orderBy['property'])) {
            $orderByInfo = $this->getDqlHelper()->getColumnInfoByAlias($orderBy['property']);
            if ($orderByInfo) {
                $entity = $this->getDqlHelper()->getEntityForPrefix(strtolower($orderByInfo['entity']));
                $joinEntities[$entity] = $entity;
            }
        }
        $joinEntities = $this->filterJoinEntities($joinEntities);