访问＆＃34; created_at＆＃34;数据透视表条目的时间戳

Question

我需要读出的数据透视表条目中pivot_created_at时间戳的值。

访问数据透视表数据已经完成，我使用Eloquent执行此操作：

    public function states() {
        return $this->belongsToMany('App\Classes\DispatchState')->withTimestamps();
    }

public function getStatesForDispatch($dispatchReference) {
    $dispatch = new Dispatch();
    $dispatch = $dispatch->getDispatch($dispatchReference);
    $statusArray = [];
    $states = $dispatch->states()->get();

    foreach ($states as $status) {
        $statusArray[] = $status;
    }

    return $statusArray;
}

但是如何访问此pivot_created_at条目以读取时间戳？我现在有点陷入困境。

Answer 1

来自Documentation。访问数据透视数据的方法是：

$user = User::find(1);

foreach ($user->roles as $role)
{
    echo $role->pivot->created_at;
}

所以在你的情况下，它将是：

public function getStatesForDispatch($dispatchReference) {
    $dispatch = new Dispatch();
    $dispatch = $dispatch->getDispatch($dispatchReference);

    // ->all gets the internal array from the Laravel Collection
    $statusArray = $dispatch->states->all();


    foreach ($statusArray as $status) 
    {
        $createdAt = $status->pivot->created_at;
        // do something with the created_at from the pivot table
    }

    return $statusArray;
}