mirror of
https://github.com/espocrm/espocrm.git
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139 lines
3.7 KiB
PHP
139 lines
3.7 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM - Open Source CRM application.
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* Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
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* Website: https://www.espocrm.com
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*
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* EspoCRM is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* EspoCRM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\ORM\Locker;
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use Espo\ORM\QueryComposer\QueryComposer;
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use Espo\ORM\QueryComposer\MysqlQueryComposer;
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use Espo\ORM\Query\LockTableBuilder;
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use Espo\ORM\TransactionManager;
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use PDO;
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use RuntimeException;
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/**
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* Transactions within locking is not supported for MySQL.
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*/
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class MysqlLocker implements Locker
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{
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private MysqlQueryComposer $queryComposer;
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/** @phpstan-ignore-next-line */
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private TransactionManager $transactionManager;
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private bool $isLocked = false;
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public function __construct(
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private PDO $pdo,
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QueryComposer $queryComposer,
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TransactionManager $transactionManager
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) {
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$this->transactionManager = $transactionManager;
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if (!$queryComposer instanceof MysqlQueryComposer) {
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throw new RuntimeException();
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}
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$this->queryComposer = $queryComposer;
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}
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/**
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* {@inheritdoc}
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*/
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public function isLocked(): bool
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{
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return $this->isLocked;
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}
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/**
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* {@inheritdoc}
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*/
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public function lockExclusive(string $entityType): void
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{
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$this->isLocked = true;
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$query = (new LockTableBuilder())
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->table($entityType)
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->inExclusiveMode()
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->build();
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$sql = $this->queryComposer->composeLockTable($query);
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$this->pdo->exec($sql);
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}
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/**
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* {@inheritdoc}
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*/
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public function lockShare(string $entityType): void
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{
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$this->isLocked = true;
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$query = (new LockTableBuilder())
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->table($entityType)
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->inShareMode()
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->build();
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$sql = $this->queryComposer->composeLockTable($query);
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$this->pdo->exec($sql);
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}
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/**
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* {@inheritdoc}
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*/
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public function commit(): void
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{
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if (!$this->isLocked) {
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throw new RuntimeException("Can't commit, it was not locked.");
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}
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$this->isLocked = false;
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$sql = $this->queryComposer->composeUnlockTables();
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$this->pdo->exec($sql);
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}
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/**
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* Lift locking.
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* Rolling back within locking is not supported for MySQL.
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*/
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public function rollback(): void
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{
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if (!$this->isLocked) {
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throw new RuntimeException("Can't rollback, it was not locked.");
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}
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$this->isLocked = false;
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$sql = $this->queryComposer->composeUnlockTables();
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$this->pdo->exec($sql);
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}
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}
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