public function canEdit($member = null)
    {
        $member = $this->getMember($member);

        if (!$member) {
            return false;
        }

        $extended = $this->extendedCan('canEdit', $member);
        if ($extended !== null) {
            return $extended;
        }

        if (Permission::checkMember($member, 'CMS_ACCESS_CommentAdmin')) {
            return true;
        }

        if ($parent = $this->Parent()) {
            return $parent->canEdit($member);
        }

        return false;
    }