nextcloud/lib/private/DB/OracleMigrator.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\DB;
use Doctrine\DBAL\Schema\ColumnDiff;
use Doctrine\DBAL\Schema\Schema;
class OracleMigrator extends NoCheckMigrator {
/**
* @param Schema $targetSchema
* @param \Doctrine\DBAL\Connection $connection
* @return \Doctrine\DBAL\Schema\SchemaDiff
*/
protected function getDiff(Schema $targetSchema, \Doctrine\DBAL\Connection $connection) {
$schemaDiff = parent::getDiff($targetSchema, $connection);
// oracle forces us to quote the identifiers
foreach ($schemaDiff->changedTables as $tableDiff) {
$tableDiff->name = $this->connection->quoteIdentifier($tableDiff->name);
foreach ($tableDiff->changedColumns as $column) {
$column->oldColumnName = $this->connection->quoteIdentifier($column->oldColumnName);
// auto increment is not relevant for oracle and can anyhow not be applied on change
$column->changedProperties = array_diff($column->changedProperties, ['autoincrement', 'unsigned']);
}
$tableDiff->changedColumns = array_filter($tableDiff->changedColumns, function (ColumnDiff $column) {
return count($column->changedProperties) > 0;
});
}
return $schemaDiff;
}
/**
* @param string $name
* @return string
*/
protected function generateTemporaryTableName($name) {
return 'oc_' . uniqid();
}
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/**
* @param $statement
* @return string
*/
protected function convertStatementToScript($statement) {
if (substr($statement, -1) === ';') {
return $statement . PHP_EOL . '/' . PHP_EOL;
}
$script = $statement . ';';
$script .= PHP_EOL;
$script .= PHP_EOL;
return $script;
}
protected function getFilterExpression() {
return '/^"' . preg_quote($this->config->getSystemValue('dbtableprefix', 'oc_')) . '/';
}
}