server/lib/repair/sqliteautoincrement.php

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<?php
/**
* Copyright (c) 2015 Vincent Petry <pvince81@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Repair;
use Doctrine\DBAL\Platforms\SqlitePlatform;
use Doctrine\DBAL\Schema\SchemaException;
use Doctrine\DBAL\Schema\SchemaDiff;
use Doctrine\DBAL\Schema\TableDiff;
use Doctrine\DBAL\Schema\ColumnDiff;
use OC\Hooks\BasicEmitter;
/**
* Fixes Sqlite autoincrement by forcing the SQLite table schemas to be
* altered in order to retrigger SQL schema generation through OCSqlitePlatform.
*/
class SqliteAutoincrement extends BasicEmitter implements \OC\RepairStep {
/**
* @var \OC\DB\Connection
*/
protected $connection;
/**
* @param \OC\DB\Connection $connection
*/
public function __construct($connection) {
$this->connection = $connection;
}
public function getName() {
return 'Repair SQLite autoincrement';
}
/**
* Fix mime types
*/
public function run() {
if (!$this->connection->getDatabasePlatform() instanceof SqlitePlatform) {
return;
}
$sourceSchema = $this->connection->getSchemaManager()->createSchema();
$schemaDiff = new SchemaDiff();
foreach ($sourceSchema->getTables() as $tableSchema) {
$primaryKey = $tableSchema->getPrimaryKey();
if (!$primaryKey) {
continue;
}
$columnNames = $primaryKey->getColumns();
// add a column diff for every primary key column,
// but do not actually change anything, this will
// force the generation of SQL statements to alter
// those tables, which will then trigger the
// specific SQL code from OCSqlitePlatform
try {
$tableDiff = new TableDiff($tableSchema->getName());
$tableDiff->fromTable = $tableSchema;
foreach ($columnNames as $columnName) {
$columnSchema = $tableSchema->getColumn($columnName);
$columnDiff = new ColumnDiff($columnSchema->getName(), $columnSchema);
$tableDiff->changedColumns[] = $columnDiff;
$schemaDiff->changedTables[] = $tableDiff;
}
} catch (SchemaException $e) {
// ignore
}
}
$this->connection->beginTransaction();
foreach ($schemaDiff->toSql($this->connection->getDatabasePlatform()) as $sql) {
$this->connection->query($sql);
}
$this->connection->commit();
}
}