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Editing: DelegationMapper.php

<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\Mail\Db;

use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\QBMapper;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;

/**
 * @template-extends QBMapper<Delegation>
 */
class DelegationMapper extends QBMapper {
	public function __construct(IDBConnection $db) {
		parent::__construct($db, 'mail_delegations');
	}

public function findDelegatedToUsers(int $accountId): array {
		$qb = $this->db->getQueryBuilder();

$select = $qb->select('*')
			->from($this->getTableName())
			->where(
				$qb->expr()->eq('account_id', $qb->createNamedParameter($accountId))
			);

return $this->findEntities($select);
	}

/**
	 * @throws DoesNotExistException
	 */
	public function find(int $accountId, string $uid): Delegation {
		$qb = $this->db->getQueryBuilder();
		$qb->select('*')
			->from($this->getTableName())
			->where($qb->expr()->eq('user_id', $qb->createNamedParameter($uid)))
			->andWhere($qb->expr()->eq('account_id', $qb->createNamedParameter($accountId)));
		return $this->findEntity($qb);
	}

public function deleteByUserId(string $userId): void {
		$qb = $this->db->getQueryBuilder();
		$qb->delete($this->getTableName())
			->where($qb->expr()->eq('user_id', $qb->createNamedParameter($userId)));
		$qb->executeStatement();
	}

/**
	 * @throws DoesNotExistException
	 */
	public function findAccountOwnerForDelegatedUser(int $accountId, string $delegatedUserId): string {
		$qb = $this->db->getQueryBuilder();
		$qb->select('a.user_id')
			->from($this->getTableName(), 'd')
			->join('d', 'mail_accounts', 'a',
				$qb->expr()->eq('d.account_id', 'a.id', IQueryBuilder::PARAM_INT))
			->where($qb->expr()->eq('d.account_id', $qb->createNamedParameter($accountId, IQueryBuilder::PARAM_INT)))
			->andWhere($qb->expr()->eq('d.user_id', $qb->createNamedParameter($delegatedUserId)));

$result = $qb->executeQuery();
		$row = $result->fetch();
		$result->closeCursor();

if ($row === false) {
			throw new DoesNotExistException("No delegation found for account $accountId and user $delegatedUserId");
		}

return (string)$row['user_id'];
	}
}

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