Cancellable and transactionable behaviors for PHP

closures.php

<?php

namespace core\utils;

/**
 * @throws \Exception
 * @param mixed $prepare
 * @param mixed $doJob
 * @param mixed $finalize
 * @param mixed $cancel
 * @return mixed
 */
function doCancellable($prepare, $doJob, $finalize, $cancel)
{
	$prepare();
	try
	{
		$result = $doJob();
		$finalize();
		return $result;
	}
	catch(\Exception $e)
	{
		$cancel();
		throw $e;
	}
}

/**
 * @param \PDO $pdo
 * @param $job
 * @return \core\orm\Market
 */
function doInTransaction(\PDO $pdo, $job)
{
	return doCancellable(
		function() use($pdo) { /** @var \PDO $pdo */ $pdo->beginTransaction(); },
		$job,
		function() use($pdo) { /** @var \PDO $pdo */ $pdo->commit(); },
		function() use($pdo) { /** @var \PDO $pdo */ $pdo->rollback(); }
	);
}