148 lines
4.0 KiB
PHP
148 lines
4.0 KiB
PHP
<?php
|
|
/**
|
|
* @author Joas Schilling <nickvergessen@owncloud.com>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
*
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
* @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\Repair;
|
|
|
|
use OC\Hooks\BasicEmitter;
|
|
use OC\RepairStep;
|
|
use OCP\DB\QueryBuilder\IQueryBuilder;
|
|
use OCP\IDBConnection;
|
|
|
|
/**
|
|
* Class RepairConfig
|
|
*
|
|
* @package OC\Repair
|
|
*/
|
|
class CleanTags extends BasicEmitter implements RepairStep {
|
|
|
|
/** @var IDBConnection */
|
|
protected $connection;
|
|
|
|
/**
|
|
* @param IDBConnection $connection
|
|
*/
|
|
public function __construct(IDBConnection $connection) {
|
|
$this->connection = $connection;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function getName() {
|
|
return 'Clean tags and favorites';
|
|
}
|
|
|
|
/**
|
|
* Updates the configuration after running an update
|
|
*/
|
|
public function run() {
|
|
$this->deleteOrphanFileEntries();
|
|
$this->deleteOrphanTagEntries();
|
|
$this->deleteOrphanCategoryEntries();
|
|
}
|
|
|
|
/**
|
|
* Delete tag entries for deleted files
|
|
*/
|
|
protected function deleteOrphanFileEntries() {
|
|
$this->deleteOrphanEntries(
|
|
'%d tags for delete files have been removed.',
|
|
'vcategory_to_object', 'objid',
|
|
'filecache', 'fileid', 'path_hash'
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Delete tag entries for deleted tags
|
|
*/
|
|
protected function deleteOrphanTagEntries() {
|
|
$this->deleteOrphanEntries(
|
|
'%d tag entries for deleted tags have been removed.',
|
|
'vcategory_to_object', 'categoryid',
|
|
'vcategory', 'id', 'uid'
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Delete tags that have no entries
|
|
*/
|
|
protected function deleteOrphanCategoryEntries() {
|
|
$this->deleteOrphanEntries(
|
|
'%d tags with no entries have been removed.',
|
|
'vcategory', 'id',
|
|
'vcategory_to_object', 'categoryid', 'type'
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Deletes all entries from $deleteTable that do not have a matching entry in $sourceTable
|
|
*
|
|
* A query joins $deleteTable.$deleteId = $sourceTable.$sourceId and checks
|
|
* whether $sourceNullColumn is null. If it is null, the entry in $deleteTable
|
|
* is being deleted.
|
|
*
|
|
* @param string $repairInfo
|
|
* @param string $deleteTable
|
|
* @param string $deleteId
|
|
* @param string $sourceTable
|
|
* @param string $sourceId
|
|
* @param string $sourceNullColumn If this column is null in the source table,
|
|
* the entry is deleted in the $deleteTable
|
|
*/
|
|
protected function deleteOrphanEntries($repairInfo, $deleteTable, $deleteId, $sourceTable, $sourceId, $sourceNullColumn) {
|
|
$qb = $this->connection->getQueryBuilder();
|
|
|
|
$qb->select('d.' . $deleteId)
|
|
->from($deleteTable, 'd')
|
|
->leftJoin('d', $sourceTable, 's', $qb->expr()->eq('d.' . $deleteId, ' s.' . $sourceId))
|
|
->where(
|
|
$qb->expr()->eq('d.type', $qb->expr()->literal('files'))
|
|
)
|
|
->andWhere(
|
|
$qb->expr()->isNull('s.' . $sourceNullColumn)
|
|
);
|
|
$result = $qb->execute();
|
|
|
|
$orphanItems = array();
|
|
while ($row = $result->fetch()) {
|
|
$orphanItems[] = (int) $row[$deleteId];
|
|
}
|
|
|
|
if (!empty($orphanItems)) {
|
|
$orphanItemsBatch = array_chunk($orphanItems, 200);
|
|
foreach ($orphanItemsBatch as $items) {
|
|
$qb->delete($deleteTable)
|
|
->where(
|
|
$qb->expr()->eq('type', $qb->expr()->literal('files'))
|
|
)
|
|
->andWhere($qb->expr()->in($deleteId, $qb->createParameter('ids')));
|
|
$qb->setParameter('ids', $items, IQueryBuilder::PARAM_INT_ARRAY);
|
|
$qb->execute();
|
|
}
|
|
}
|
|
|
|
if ($repairInfo) {
|
|
$this->emit('\OC\Repair', 'info', array(sprintf($repairInfo, sizeof($orphanItems))));
|
|
}
|
|
}
|
|
}
|