Question

这是我的情况：

在我的数据库中，有一个表users。表中的行还具有字段password_changed_at。现在，我想选择password_changed_at字段早于30天的所有用户并发送推送通知，但是我对如何使用Carbon做到这一点感到困惑。我的代码现在看起来像这样：

public function passwordExpired() {

    $dateTime = new DateTime();
    $currentDateTime = $dateTime->format('Y-m-d H:i');
    $users = User::where('password_changed_at', $currentDateTime)->get();

    // $user = $request->user();
    foreach ($users as $user) {

    $password_changed_at = new Carbon(($user->password_changed_at) ? $user->password_changed_at : "");

    if (Carbon::now()->diffInDays($password_changed_at) >= 30) {

        foreach ($password_changed_at as $password) 
        {
            // $user = $user->id;
            $user->notify(new ReminderPassword($user));

        $push = new PushNotification('apn');
        $push->setMessage([
            'aps' => [
                'alert' => 'Reminder for your password "'.$user->email.'"',
                'sound' => 'default',
                'badge' => $user->unreadNotifications->count()

            ],
            'extraPayLoad' => [
                'custom' => 'My custom data',
            ]
        ]);
        $push->setDevicesToken($user->deviceToken);
        $push->send();
        $feedback = $push->getFeedback();
        }

Answer 1

类似diffInDays的工作方式却相反（例如，相差较远的一天将返回负值）。参见：https://carbon.nesbot.com/docs/#api-difference

因此您可以像这样更改代码：

public function passwordExpired() {

$dateTime = new DateTime();
$currentDateTime = $dateTime->format('Y-m-d H:i');
$users = User::where('password_changed_at', $currentDateTime)->get();

foreach ($users as $user) {

    $password_changed_at = new Carbon(
      ($user->password_changed_at) ? $user->password_changed_at : ""
    );

    // DiffIndays works the other way round:

    if ($password_changed_at->diffInDays(Carbon::now()) >= 30) {

        $user->notify(new ReminderPassword($user));

        $push = new PushNotification('apn');
        $push->setMessage([
            'aps' => [
              'alert' => 'Reminder for your password "' . $user->email . '"', 
              'sound' => 'default', 'badge' => $user->unreadNotifications->count() 
             ], 
             'extraPayLoad' => ['custom' => 'My custom data', ]
        ]);
        $push->setDevicesToken($user->deviceToken);
        $push->send();

        $feedback = $push->getFeedback();
    }
}

}

Answer 2

使用$users = User::where('password_changed_at', $currentDateTime)->get();，您选择所有已更改其日期今天的用户，但您希望选择所有已更改密码+30天之前的用户。

因此，您可以使用查询范围来选择它们。在您的Users类中添加以下内容：

class Users extends Authenticatable
{

    // ...

    public function scopePasswordOlderThan30Days(Builder $builder)
    {
        $expirationDate = Carbon::now()->subDays(30);

        return $builder->where('password_changed_at', '<=', $expirationDate);
    }
}

在您的函数中按以下方式使用它：

public function passwordExpired()
{
    $users = User::passwordOlderThan30Days()->get();

    $users->each(function(User $user) {
        // notify the user
    })
}

向30天之前更改密码的用户发送推送通知

2 个答案: