public function matchCount($str)
{
$query = <<<__SQL__
SELECT
COUNT(*) as count
FROM
items_fts fts
INNER JOIN
items it ON it.id = fts.item_id AND it.published = 2
WHERE
fts.words MATCH :match
__SQL__;
return \DB::select(\DB::raw($query), array('match' => FtsUtils::createMatchWord($str)));
}