public function getBrand($idSite, $period, $date, $segment = false)
{
$dataTable = $this->getDataTable('DevicesDetection_brands', $idSite, $period, $date, $segment);
$dataTable->filter('GroupBy', array('label', __NAMESPACE__ . '\\getDeviceBrandLabel'));
$dataTable->filter('ColumnCallbackAddMetadata', array('label', 'logo', __NAMESPACE__ . '\\getBrandLogo'));
$dataTable->filter('AddSegmentByLabel', array('deviceBrand'));
return $dataTable;
}