如何循环调度链式作业？

Question

我正在尝试在 foreach 循环内分派 Laravel 作业。但问题是，当我在循环内调度作业时，有时它会在作业完成之前排队完成。我想要的是工作应该一项一项地完成。就像链式方法中发生的那样。但是我如何在 foreach 循环中链接相同的作业？这可能吗？

foreach ($consignments as $consignment) {
     CalculateSingleConsignment::dispatch($consignment, $total_consignments, $i, $user_id, $notify)->onQueue('invoice');
     $i++;
}

Answer 1

您可以构造要链接的数组，而不是在循环中分派实际作业：

$jobs = [];
 foreach (array_values($consignments) as $i => $consignment) { 
      $jobs[] = new CalculateSingleConsignment($consignment, $total_consignments, $i, $user_id, $notify);
}
Bus::chain($jobs)->onQueue('invoice')->dispatch()

如果你想使用依赖注入，你可以将你的工作构造为：

app()->makeWith(CalculateSingleConsignment::class, compact('consignment', 'total_consignments', 'i', 'user_id', 'notify'));

如何循环调度链式作业？

How to dispatch a chained job in a loop?

laravel

laravel-8

laravel-queue

laravel-jobs