public function searchFor($strPattern)
    {
        // Base implementation, do a simple search on given column.
        $strPattern = str_replace(array('*', '?'), array('%', '_'), $strPattern);
        $arrIds     = $this->connection->createQueryBuilder()
            ->select('id')
            ->from($this->getMetaModel()->getTableName())
            ->where($this->getColName() . ' LIKE :pattern')
            ->setParameter('pattern', $strPattern)
            ->execute()
            ->fetchAll(\PDO::FETCH_COLUMN, 'id');

        return $arrIds;
    }