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<?php |
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/** |
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* Copyright 2021 Aleksandar Panic |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace ArekX\PQL\Drivers\Pdo; |
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use Exception; |
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/** |
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* Transaction for handling PDO connections. |
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* |
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*/ |
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class PdoTransaction |
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{ |
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/** |
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* Driver to be used for transaction. |
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* |
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* @var PdoDriver |
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*/ |
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protected PdoDriver $driver; |
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/** |
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* Whether the transaction is finalized. |
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* @var bool |
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*/ |
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protected bool $isFinalized = false; |
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/** |
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* Creates a new transaction from the driver. |
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* |
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* @param PdoDriver $driver Driver to be used |
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* @return static |
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*/ |
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public static function create(PdoDriver $driver): static |
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{ |
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$instance = new static(); |
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$instance->driver = $driver; |
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$instance->driver->getPdo()->beginTransaction(); |
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return $instance; |
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} |
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/** |
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* Executes a method and commits the result |
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* if method throws an exception, transaction |
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* is rolled back. |
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* |
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* @param callable $method Method to be executed. |
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* @return mixed Result from the methods |
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* @throws Exception |
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*/ |
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public function execute(callable $method): mixed |
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{ |
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try { |
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$result = $method($this); |
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1 |
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$this->commit(); |
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1 |
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return $result; |
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1 |
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} catch (Exception $e) { |
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$this->rollback(); |
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throw $e; |
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} |
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} |
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/** |
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* Commits all queries executed on the driver since this |
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* transaction started. |
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* |
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* If this or rollback method is called before this method, subsequent |
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* calls are ignored. |
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* |
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* @return void |
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*/ |
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public function commit(): void |
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{ |
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if ($this->isFinalized) { |
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return; |
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} |
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$this->driver->getPdo()->commit(); |
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$this->isFinalized = true; |
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} |
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/** |
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* Rollbacks all queries executed on this driver since |
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* this transaction started. |
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* |
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* If this or rollback method is called before this method, subsequent |
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* calls are ignored. |
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* |
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* @return void |
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*/ |
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public function rollback(): void |
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{ |
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if ($this->isFinalized) { |
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return; |
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} |
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$this->driver->getPdo()->rollBack(); |
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$this->isFinalized = true; |
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} |
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} |
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ArekX /
PQL
