Question

让我们看看以下例子：

User::where('is_active', true)->each(function (User $user){
   // do something

}, 500);

因此，如果我有2000个用户，那么每次新用户结束时是否有办法做某事？

Answer 1

User::where('is_active', true)->chunk(500, function (Collection $users) {
    $users->each(function (User $user) {
        // Do per-user stuff here
    });
    // Do per-chunk stuff here
}

这应该可以解决问题。请记住，最后一个块可能包含少于500个用户。如果它必须恰好是每500个，检查集合大小;

User::where('is_active', true)->chunk(500, function (Collection $users) {
    $users->each(function (User $user) {
        // Do per-user stuff here
    });
    if ($users->count() == 500) {
        // Do per-chunk stuff here
    }
}

希望这有帮助。

Answer 2

如果您想使用each()帮助程序，则需要手动执行此操作。做这样的事情：

$counter = 0;
$chunk = 500;

User::where('is_active', true)->each(function (User $user) use(&$counter, $chunk) {
    // Do stuff for each user.

    $counter += 1;
    if ($counter === $chunk) {
        $counter = 0;
        // Do something after each chunk.
        $this->doSomething();
    }
}, $chunk);

if (!$counter)
    // Do something for the last chunk.
    $this->doSomething();
}

Laravel在每次吸盘完成后都会采取行动吗？

2 个答案: