<?php
/*
* OIDplus 2.0
* Copyright 2019 - 2021 Daniel Marschall, ViaThinkSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
class OIDplusSqlSlangPluginMsSQL extends OIDplusSqlSlangPlugin {
public static function id(): string {
return 'mssql';
}
public function natOrder($fieldname, $order='asc'): string {
if (($order != 'asc') && ($order != 'desc')) {
throw new OIDplusException(_L('Invalid order "%1" (needs to be "asc" or "desc")',$order));
}
$max_arc_len = OIDplus::baseConfig()->getValue('LIMITS_MAX_OID_ARC_SIZE');
// 1. sort by namespace (oid, guid, ...)
$out[] = "SUBSTRING($fieldname,1,CHARINDEX(':',$fieldname)-1) $order";
for ($i=1; $i<=OIDplus::baseConfig()->getValue('LIMITS_MAX_OID_DEPTH'); $i++) {
// 2. Sort by the rest arcs one by one; note that MySQL can only handle decimal(65), not decimal($max_arc_len)
$out[] = "dbo.getOidArc($fieldname, $max_arc_len, $i) $order";
}
// 3. as last resort, sort by the identifier itself, e.g. if the function getOidArc always return 0 (happens if it is not an OID)
$out[] = "$fieldname $order";
}
public function sqlDate(): string {
return 'getdate()';
}
public function detect(OIDplusDatabaseConnection $db): bool {
try {
$vers = $db->query("select @@version as dbms_version")->fetch_object()->dbms_version;
return strpos($vers, 'microsoft sql server') !== false;
} catch (Exception $e) {
return false;
}
}
public function insert_id(OIDplusDatabaseConnection $db): int {
// Note: SCOPE_IDENTITY() does not work, does only give 0.
// $res = $db->query("SELECT SCOPE_IDENTITY() AS ID");
$res = $db->query("SELECT @@IDENTITY AS ID");
$row = $res->fetch_array();
return (int)$row['ID'];
}
public function setupSetTablePrefix($cont, $table, $prefix): string {
$cont = str_replace('['.$table.']', '['.$prefix.$table.']', $cont);
$cont = str_replace("'dbo.$table'", "'dbo.$prefix$table'", $cont);
$cont = str_replace('PK_'.$table, 'PK_'.$prefix.$table, $cont);
$cont = str_replace('IX_'.$table, 'PK_'.$prefix.$table, $cont);
$cont = str_replace('DF__'.$table, 'DF__'.$prefix.$table, $cont);
return $cont;
}
public function setupCreateDbIfNotExists($database): string {
return "";
}
public function setupUseDatabase($database): string {
return "USE [$database]\n\nGO\n\n";
}
public function isNullFunction($expr1, $expr2): string {
return "isnull($expr1, $expr2)";
}
public function filterQuery($sql): string {
return $sql;
}
public function getSQLBool($bool): string {
return $bool ? '1' : '0';
}
public function escapeString($str): string {
}
}