vim /usr/share/koha/intranet/cgi-bin/admin/smart-rules.pl

    my $params = {
        branchcode             => $br,
        categorycode           => $bor,
        itemtype               => $itemtype,
        fine                   => $fine,
        finedays               => $finedays,
        maxsuspensiondays      => $maxsuspensiondays,
        firstremind            => $firstremind,
        chargeperiod           => $chargeperiod,
        chargeperiod_charge_at => $chargeperiod_charge_at, <= no
        maxissueqty            => $maxissueqty,
        maxonsiteissueqty      => $maxonsiteissueqty,
        renewalsallowed        => $renewalsallowed,
        renewalperiod          => $renewalperiod,
        norenewalbefore        => $norenewalbefore,
        auto_renew             => $auto_renew,
        reservesallowed        => $reservesallowed,
        issuelength            => $issuelength,
        lengthunit             => $lengthunit,
        hardduedate            => $hardduedate,
        hardduedatecompare     => $hardduedatecompare,
        rentaldiscount         => $rentaldiscount,
        onshelfholds           => $onshelfholds,
        opacitemholds          => $opacitemholds,
        overduefinescap        => $overduefinescap,
    };


####### MySQL
describe issuingrules;
+--------------------+---------------+------+-----+---------+-------+
| Field              | Type          | Null | Key | Default | Extra |
+--------------------+---------------+------+-----+---------+-------+
| categorycode       | varchar(10)   | NO   | PRI |         |       |
| itemtype           | varchar(10)   | NO   | PRI |         |       |
| restrictedtype     | tinyint(1)    | YES  |     | NULL    |       |
| rentaldiscount     | decimal(28,6) | YES  |     | NULL    |       |
| reservecharge      | decimal(28,6) | YES  |     | NULL    |       |
| fine               | decimal(28,6) | YES  |     | NULL    |       |
| finedays           | int(4)        | YES  |     | NULL    |       |
| maxsuspensiondays  | int(11)       | YES  |     | NULL    |       |
| firstremind        | int(11)       | YES  |     | NULL    |       |
| chargeperiod       | int(11)       | YES  |     | NULL    |       |
| accountsent        | int(11)       | YES  |     | NULL    |       |
| chargename         | varchar(100)  | YES  |     | NULL    |       |
| maxissueqty        | int(4)        | YES  |     | NULL    |       |
| issuelength        | int(4)        | YES  |     | NULL    |       |
| lengthunit         | varchar(10)   | YES  |     | days    |       |
| hardduedate        | date          | YES  |     | NULL    |       |
| hardduedatecompare | tinyint(4)    | NO   |     | 0       |       |
| renewalsallowed    | smallint(6)   | NO   |     | 0       |       |
| renewalperiod      | int(4)        | YES  |     | NULL    |       |
| norenewalbefore    | int(4)        | YES  |     | NULL    |       |
| auto_renew         | tinyint(1)    | YES  |     | 0       |       |
| reservesallowed    | smallint(6)   | NO   |     | 0       |       |
| branchcode         | varchar(10)   | NO   | PRI |         |       |
| max_fine           | decimal(28,6) | YES  |     | NULL    |       |
| holdallowed        | tinyint(1)    | YES  |     | 2       |       |
| max_holds          | int(4)        | YES  |     | NULL    |       |
| overduefinescap    | decimal(28,6) | YES  |     | NULL    |       |
| onshelfholds       | tinyint(1)    | NO   |     | 0       |       |
| opacitemholds      | char(1)       | NO   |     | N       |       |
+--------------------+---------------+------+-----+---------+-------+
29 rows in set (0.01 sec)