public function filterByHowpublished($howpublished = null, $comparison = null)
    {
        if (null === $comparison) {
            if (is_array($howpublished)) {
                $comparison = Criteria::IN;
            } elseif (preg_match('/[\%\*]/', $howpublished)) {
                $howpublished = str_replace('*', '%', $howpublished);
                $comparison = Criteria::LIKE;
            }
        }

        return $this->addUsingAlias(ReferenceTableMap::COL_HOWPUBLISHED, $howpublished, $comparison);
    }