TP6.0 模型的关联删除

/**
 * 一对多关联 用户对应多个评论
 *
 * @return \think\model\relation\hasMany
 */
public function comments()
{
    return $this->hasMany(Comment::class, 'user_id', 'id');
}
/**
 * 一对多关联 用户对应多个操作日志
 *
 * @return \think\model\relation\hasMany
 */
public function logs()
{
    return $this->hasMany(Log::class, 'user_id', 'id');
}

$user_id = 1;
$data = User::with(['comments', 'logs'])->findOrEmpty($user_id);
$bool = $data->together(['comments', 'logs'])->delete();

$data = User::with(['comments', 'logs'])->select();
foreach ($data as $model) {
    $model->together(['comments', 'logs'])->delete();
}