php - 通知中使用的 Blade 模板中未定义的变量

Question

我有一个 message.blade，我试图在其中访问我的 Notification 类中设置的变量：

{{ $testVar }}

类SimpleMessage有一个toArray看起来像这样的方法：

public function toArray()
{
    return [
        'level' => $this->level,
        'subject' => $this->subject,
        'greeting' => $this->greeting,
        'salutation' => $this->salutation,
        'introLines' => $this->introLines,
        'outroLines' => $this->outroLines,
        'actionText' => $this->actionText,
        'actionUrl' => $this->actionUrl,
        'testVar' => 'test'
    ];
}

我正在MailMessage用作 的子类SimpleMessage，其中我有这个方法：

/**
 * Get the data array for the mail message.
 *
 * @return array
 */
public function data()
{
    return array_merge($this->toArray(), $this->viewData);
}

中没有toArray()方法MailMessage，所以指向超类SimpleMessage。

但是，我收到此错误：

"message": "Undefined variable: testVar (View: ...\\message.blade.php)

如何正确将此变量传递给我的视图？

编辑 我的实现类如下所示：

class NewCommentNotification extends Notification
{
    /**
     * @var Examination
     */
    private $examination;

    public $testVar = 'bladiebla';

    /**
     * Create a new notification instance.
     *
     * @param Examination $examination
     */
    public function __construct(Examination $examination)
    {
        $this->examination  = $examination;
    }

    /**
     * Get the notification's delivery channels.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function via($notifiable)
    {
        return ['mail', 'database'];
    }

    /**
     * Get the mail representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return \Illuminate\Notifications\Messages\MailMessage
     */
    public function toMail($notifiable)
    {

        return (new MailMessage)
            ->line('message')
            ->subject('subject')
            ->action('action', 'url');
    }

    /**
     * Get the array representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function toArray($notifiable)
    {
        return [
            'id' => $this->examination->id,
            'title' => 'title',
            'uri' => 'edit',
            'message' => 'message',
            'action' => 'newExaminationCommentMessage',
            'testVar' => $this->testVar
        ];
    }
}