如何在循环中调度链式作业?

Question

我试图在foreach循环内调度Laravel作业。但问题是，当我在循环内调度作业时，有时它在作业队列完成之前就完成了。我想要的是工作应该一个接一个地完成。就像链式方法一样。但是我如何在foreach循环中链接相同的作业呢?这可能吗?

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

Answer 1

可以构造要链接的数组，而不是在循环中调度实际的作业:

$jobs = [];
foreach (array_values($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，你可以这样构造你的作业:

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