pdnsmanager/lib/checkversion.php

47 lines
1.2 KiB
PHP

<?php
/*
* Copyright 2016 Lukas Metzger <developer@lukas-metzger.com>.
*
* 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.
*/
function getExpectedVersion() {
return 2;
}
function checkVersion($db) {
if(getVersion($db) == getExpectedVersion()) {
return true;
} else {
return false;
}
}
function getVersion($db) {
$stmt = $db->prepare("SHOW TABLES LIKE 'options'");
$stmt->execute();
$stmt->store_result();
if($stmt->num_rows() < 1) {
return 0;
}
$stmt->close();
$stmt = $db->prepare("SELECT value FROM options WHERE name='schema_version'");
$stmt->execute();
$stmt->bind_result($version);
$stmt->fetch();
$stmt->close();
return $version;
}