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<?php
declare(strict_types=1);
/**
* @copyright Copyright 2022 Carl Schwan <carl@carlschwan.eu>
* @license AGPL-3.0-or-later
*
* 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\Metadata;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\MultipleObjectsReturnedException;
use OCP\AppFramework\Db\QBMapper;
use OCP\DB\Exception;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
class FileMetadataMapper extends QBMapper {
public function __construct(IDBConnection $db) {
parent::__construct($db, 'file_metadata', FileMetadata::class);
}
/**
* @return FileMetadata[]
* @throws Exception
*/
public function findForFile(int $fileId): array {
$qb = $this->db->getQueryBuilder();
$qb->select('*')
->from($this->getTableName())
->where($qb->expr()->eq('id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
return $this->findEntities($qb);
}
/**
* @throws DoesNotExistException
* @throws MultipleObjectsReturnedException
* @throws Exception
*/
public function findForGroupForFile(int $fileId, string $groupName): FileMetadata {
$qb = $this->db->getQueryBuilder();
$qb->select('*')
->from($this->getTableName())
->where($qb->expr()->eq('id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT_ARRAY)))
->andWhere($qb->expr()->eq('group_name', $qb->createNamedParameter($groupName, IQueryBuilder::PARAM_STR)));
return $this->findEntity($qb);
}
/**
* @return array<int, FileMetadata>
* @throws Exception
*/
public function findForGroupForFiles(array $fileIds, string $groupName): array {
$qb = $this->db->getQueryBuilder();
$qb->select('*')
->from($this->getTableName())
->where($qb->expr()->in('id', $qb->createParameter('fileIds')))
->andWhere($qb->expr()->eq('group_name', $qb->createNamedParameter($groupName, IQueryBuilder::PARAM_STR)));
$metadata = [];
foreach (array_chunk($fileIds, 1000) as $fileIdsChunk) {
$qb->setParameter('fileIds', $fileIdsChunk, IQueryBuilder::PARAM_INT_ARRAY);
/** @var FileMetadata[] $rawEntities */
$rawEntities = $this->findEntities($qb);
foreach ($rawEntities as $entity) {
$metadata[$entity->getId()] = $entity;
}
}
foreach ($fileIds as $id) {
if (isset($metadata[$id])) {
continue;
}
$empty = new FileMetadata();
$empty->setMetadata([]);
$empty->setGroupName($groupName);
$empty->setId($id);
$metadata[$id] = $empty;
}
return $metadata;
}
public function clear(int $fileId): void {
$qb = $this->db->getQueryBuilder();
$qb->delete($this->getTableName())
->where($qb->expr()->eq('id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
$qb->executeStatement();
}
}
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