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<?php
declare(strict_types=1);
/**
* @copyright Copyright 2022 Carl Schwan <carl@carlschwan.eu>
* @copyright Copyright 2022 Louis Chmn <louis@chmn.me>
* @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\AppFramework\Db\Entity;
use OCP\DB\Exception;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
/**
* @template-extends QBMapper<FileMetadata>
*/
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->setValue('');
$empty->setGroupName($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();
}
/**
* Updates an entry in the db from an entity
*
* @param Entity $entity the entity that should be created
* @return FileMetadata the saved entity with the set id
* @throws Exception
* @throws \InvalidArgumentException if entity has no id
*/
public function update(Entity $entity): FileMetadata {
if (!($entity instanceof FileMetadata)) {
throw new \Exception("Entity should be a FileMetadata entity");
}
// entity needs an id
$id = $entity->getId();
if ($id === null) {
throw new \InvalidArgumentException('Entity which should be updated has no id');
}
// entity needs an group_name
$groupName = $entity->getGroupName();
if ($groupName === null) {
throw new \InvalidArgumentException('Entity which should be updated has no group_name');
}
$idType = $this->getParameterTypeForProperty($entity, 'id');
$groupNameType = $this->getParameterTypeForProperty($entity, 'groupName');
$value = $entity->getValue();
$valueType = $this->getParameterTypeForProperty($entity, 'value');
$qb = $this->db->getQueryBuilder();
$qb->update($this->tableName)
->set('value', $qb->createNamedParameter($value, $valueType))
->where($qb->expr()->eq('id', $qb->createNamedParameter($id, $idType)))
->andWhere($qb->expr()->eq('group_name', $qb->createNamedParameter($groupName, $groupNameType)))
->executeStatement();
return $entity;
}
}
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