Current File : //data/www_bck/varak.net_bck/nextcloud.varak.net/lib/private/Files/Cache/CacheQueryBuilder.php
<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2019 Robin Appelman <robin@icewind.nl>
*
* @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Files\Cache;
use OC\DB\QueryBuilder\QueryBuilder;
use OC\SystemConfig;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\FilesMetadata\IFilesMetadataManager;
use OCP\FilesMetadata\IMetadataQuery;
use OCP\IDBConnection;
use Psr\Log\LoggerInterface;
/**
* Query builder with commonly used helpers for filecache queries
*/
class CacheQueryBuilder extends QueryBuilder {
private ?string $alias = null;
public function __construct(
IDBConnection $connection,
SystemConfig $systemConfig,
LoggerInterface $logger,
private IFilesMetadataManager $filesMetadataManager,
) {
parent::__construct($connection, $systemConfig, $logger);
}
public function selectTagUsage(): self {
$this
->select('systemtag.name', 'systemtag.id', 'systemtag.visibility', 'systemtag.editable')
->selectAlias($this->createFunction('COUNT(filecache.fileid)'), 'number_files')
->selectAlias($this->createFunction('MAX(filecache.fileid)'), 'ref_file_id')
->from('filecache', 'filecache')
->leftJoin('filecache', 'systemtag_object_mapping', 'systemtagmap', $this->expr()->andX(
$this->expr()->eq('filecache.fileid', $this->expr()->castColumn('systemtagmap.objectid', IQueryBuilder::PARAM_INT)),
$this->expr()->eq('systemtagmap.objecttype', $this->createNamedParameter('files'))
))
->leftJoin('systemtagmap', 'systemtag', 'systemtag', $this->expr()->andX(
$this->expr()->eq('systemtag.id', 'systemtagmap.systemtagid'),
$this->expr()->eq('systemtag.visibility', $this->createNamedParameter(true))
))
->groupBy('systemtag.name', 'systemtag.id', 'systemtag.visibility', 'systemtag.editable');
return $this;
}
public function selectFileCache(?string $alias = null, bool $joinExtendedCache = true) {
$name = $alias ?: 'filecache';
$this->select("$name.fileid", 'storage', 'path', 'path_hash', "$name.parent", "$name.name", 'mimetype', 'mimepart', 'size', 'mtime',
'storage_mtime', 'encrypted', 'etag', "$name.permissions", 'checksum', 'unencrypted_size')
->from('filecache', $name);
if ($joinExtendedCache) {
$this->addSelect('metadata_etag', 'creation_time', 'upload_time');
$this->leftJoin($name, 'filecache_extended', 'fe', $this->expr()->eq("$name.fileid", 'fe.fileid'));
}
$this->alias = $name;
return $this;
}
public function whereStorageId(int $storageId) {
$this->andWhere($this->expr()->eq('storage', $this->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)));
return $this;
}
public function whereFileId(int $fileId) {
$alias = $this->alias;
if ($alias) {
$alias .= '.';
} else {
$alias = '';
}
$this->andWhere($this->expr()->eq("{$alias}fileid", $this->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
return $this;
}
public function wherePath(string $path) {
$this->andWhere($this->expr()->eq('path_hash', $this->createNamedParameter(md5($path))));
return $this;
}
public function whereParent(int $parent) {
$alias = $this->alias;
if ($alias) {
$alias .= '.';
} else {
$alias = '';
}
$this->andWhere($this->expr()->eq("{$alias}parent", $this->createNamedParameter($parent, IQueryBuilder::PARAM_INT)));
return $this;
}
public function whereParentInParameter(string $parameter) {
$alias = $this->alias;
if ($alias) {
$alias .= '.';
} else {
$alias = '';
}
$this->andWhere($this->expr()->in("{$alias}parent", $this->createParameter($parameter)));
return $this;
}
/**
* join metadata to current query builder and returns an helper
*
* @return IMetadataQuery|null NULL if no metadata have never been generated
*/
public function selectMetadata(): ?IMetadataQuery {
$metadataQuery = $this->filesMetadataManager->getMetadataQuery($this, $this->alias, 'fileid');
$metadataQuery?->retrieveMetadata();
return $metadataQuery;
}
}
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