public function getMembers()
    {
        if (empty($this->aMembers)) {
            $this->aMembers = [];
            if ($this->id) {
                foreach (Sked::getEventMembers($this->id) as $aEventMember)
                    $this->aMembers[$aEventMember['member_id']] = $aEventMember;
            }
        }
        return $this->aMembers;
    }