public function col_team(stdClass $row) {
        $submission = false;
        $group = false;
        $this->get_group_and_submission($row->id, $group, $submission, -1);
        if ($group) {
            return $group->name;
        } else if ($this->assignment->get_instance()->preventsubmissionnotingroup) {
            $usergroups = $this->assignment->get_all_groups($row->id);
            if (count($usergroups) > 1) {
                return get_string('multipleteamsgrader', 'assign');
            } else {
                return get_string('noteamgrader', 'assign');
            }
        }
        return get_string('defaultteam', 'assign');
    }