public function getKeywords($idSite, $period, $date, $segment = false, $expanded = false, $flat = false)
{
$dataTable = Archive::createDataTableFromArchive(Archiver::KEYWORDS_RECORD_NAME, $idSite, $period, $date, $segment, $expanded, $flat);
if ($flat) {
$dataTable->filterSubtables('Piwik\\Plugins\\Referrers\\DataTable\\Filter\\SearchEnginesFromKeywordId', array($dataTable));
} else {
$dataTable->filter('AddSegmentValue');
$dataTable->queueFilter('PrependSegment', array('referrerType==search;'));
}
$dataTable->queueFilter('Piwik\\Plugins\\Referrers\\DataTable\\Filter\\KeywordNotDefined');
return $dataTable;
}