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104 lines
3.3 KiB
PHP
104 lines
3.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Files_Versions\Db;
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use OCP\AppFramework\Db\QBMapper;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\IDBConnection;
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/**
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* @extends QBMapper<VersionEntity>
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*/
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class VersionsMapper extends QBMapper {
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public function __construct(IDBConnection $db) {
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parent::__construct($db, 'files_versions', VersionEntity::class);
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}
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/**
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* @return VersionEntity[]
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*/
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public function findAllVersionsForFileId(int $fileId): array {
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$qb = $this->db->getQueryBuilder();
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$qb->select('*')
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->from($this->getTableName())
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->where($qb->expr()->eq('file_id', $qb->createNamedParameter($fileId)));
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return $this->findEntities($qb);
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}
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/**
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* @return VersionEntity
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*/
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public function findCurrentVersionForFileId(int $fileId): VersionEntity {
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$qb = $this->db->getQueryBuilder();
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$qb->select('*')
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->from($this->getTableName())
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->where($qb->expr()->eq('file_id', $qb->createNamedParameter($fileId)))
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->orderBy('timestamp', 'DESC')
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->setMaxResults(1);
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return $this->findEntity($qb);
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}
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public function findVersionForFileId(int $fileId, int $timestamp): VersionEntity {
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$qb = $this->db->getQueryBuilder();
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$qb->select('*')
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->from($this->getTableName())
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->where($qb->expr()->eq('file_id', $qb->createNamedParameter($fileId)))
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->andWhere($qb->expr()->eq('timestamp', $qb->createNamedParameter($timestamp)));
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return $this->findEntity($qb);
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}
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public function deleteAllVersionsForFileId(int $fileId): int {
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$qb = $this->db->getQueryBuilder();
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return $qb->delete($this->getTableName())
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->where($qb->expr()->eq('file_id', $qb->createNamedParameter($fileId)))
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->executeStatement();
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}
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public function deleteAllVersionsForUser(int $storageId, ?string $path = null): void {
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$fileIdsGenerator = $this->getFileIdsGenerator($storageId, $path);
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$versionEntitiesDeleteQuery = $this->db->getQueryBuilder();
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$versionEntitiesDeleteQuery->delete($this->getTableName())
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->where($versionEntitiesDeleteQuery->expr()->in('file_id', $versionEntitiesDeleteQuery->createParameter('file_ids')));
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foreach ($fileIdsGenerator as $fileIds) {
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$versionEntitiesDeleteQuery->setParameter('file_ids', $fileIds, IQueryBuilder::PARAM_INT_ARRAY);
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$versionEntitiesDeleteQuery->executeStatement();
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}
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}
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private function getFileIdsGenerator(int $storageId, ?string $path): \Generator {
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$offset = 0;
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do {
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$filesIdsSelect = $this->db->getQueryBuilder();
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$filesIdsSelect->select('fileid')
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->from('filecache')
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->where($filesIdsSelect->expr()->eq('storage', $filesIdsSelect->createNamedParameter($storageId, IQueryBuilder::PARAM_STR)))
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->andWhere($filesIdsSelect->expr()->like('path', $filesIdsSelect->createNamedParameter('files' . ($path ? '/' . $this->db->escapeLikeParameter($path) : '') . '/%', IQueryBuilder::PARAM_STR)))
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->andWhere($filesIdsSelect->expr()->gt('fileid', $filesIdsSelect->createParameter('offset')))
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->setMaxResults(1000)
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->orderBy('fileid', 'ASC');
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$filesIdsSelect->setParameter('offset', $offset, IQueryBuilder::PARAM_INT);
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$result = $filesIdsSelect->executeQuery();
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$fileIds = $result->fetchAll(\PDO::FETCH_COLUMN);
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$offset = end($fileIds);
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yield $fileIds;
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} while (!empty($fileIds));
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}
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}
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