public function countBySite($siteId)
    {
        $qa = $this->createAggregationQuery();
        $qa->match(array('siteId' => $siteId));

        return $this->countDocumentAggregateQuery($qa);
    }
public function countBySite($siteId)
    {
        $qa = $this->createAggregationQuery();
        $qa->match(array('siteId' => $siteId));

        return $this->countDocumentAggregateQuery($qa);
    }
@param string $siteId

@return int