// makeJoinPart builds a left join part for getSubtotals query (for time items).
static function makeJoinPart($options) {
// makeJoinPart builds a left join part for getSubtotals query (for time items).
static function makeJoinPart($options) {
$group_by_fields = ttReportHelper::makeGroupByFieldsPart($options); // TODO: refactor this, perhaps?
if (strpos($group_by_fields, 'user') !== false) {
$group_by_fields = ttReportHelper::makeGroupByFieldsPart($options); // TODO: refactor this, perhaps?
if (strpos($group_by_fields, 'user') !== false) {