Laravel，不使用 foreach 插入多行

Question

$input['activities'] = array(3,2,5);

foreach($input['activities'] as $activity_id){

    $user_activities = new User_activities;

    $user_activities->activity_id = $activity_id;

    $user_activities->user_id = Auth::id();

    $user_activities->save();

}

是否可以用一行脚本为 Laravel 中的每个语句执行上述保存操作？而不是在 foreach 中进行保存，是否可以在一行中进行保存？

Answer 1

只需将数组的数组传递给 Eloquent::insert():

$data = [];

foreach($input['activities'] as $activity_id) {
    $data[] = [
        'activity_id' => $activity_id,
        'user_id' => Auth::id()
    ];
}

Coder::insert($data);

Answer 2

我找到了解决方案，

$activities = array(3,2,5);
$user->activities()->sync($activities);

用户模型将具有如下活动功能，

public function activities()
{
    return $this->belongsToMany('App\Activity', 'user_activities')->select(['activities.id'])->withTimestamps();
}

Laravel，不使用 foreach 插入多行

Laravel, insert multiple rows without using foreach

mysql

insert

save

laravel

eloquent