不适用于laravel的注释通知

Question

错误在此输入图像描述

我试图发送事件的通知，当一些喜欢和评论他的帖子，通知评论和喜欢在这里工作是我的通知类。

class NewCommentEvent extends Notification
{

    use Queueable;
    protected $comment;
    /**
     * Create a new notification instance.
     *
     * @return void
     */
    public function __construct($comment)
    {
        $this->comment = $comment;
    }

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

    /**
     * Get the array representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function toDatabase($notifiable)
    {
        return [
            'comment' => $this->comment,
            'event' => Event::find($this->comment->event_id),
            'user' => User::find($this->comment->user_id)
        ];
    }

    /**
     * Get the array representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function toArray($notifiable)
    {
        return [
            //
        ];
    }
}

我的控制器功能代码，用于通知评论

 public function store(CommentRequest $request)
    {


        $event = Event::findOrFail($request->event_id);


        Comment::create([
            'comment' => $request->comment,
            'user_id' => Auth::id(),
            'event_id' => $event->id
        ]);

        if ($event->user_id != $comment->user_id) {
            $user = User::find($event->user_id);
            $user->notify(new NewCommentEvent($comment));
        }



        Toastr::success('Comment post with success','', ["positionClass" => "toast-top-center"]);
        return redirect()->back();
    }

我的请求

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;

class CommentRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return Auth::check();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'comment' => 'required|max:2000',
        ];
    }
}

Answer 1

错误信息很清楚<代码>$comment未定义。将控制器代码替换为以下代码：

public function store(CommentRequest $request)
    {


    $event = Event::findOrFail($request->event_id);

   // defined comment here
    $comment = Comment::create([
        'comment' => $request->comment,
        'user_id' => Auth::id(),
        'event_id' => $event->id
    ]);

    if ($event->user_id != $comment->user_id) {
        $user = User::find($event->user_id);
        $user->notify(new NewCommentEvent($comment));
    }



    Toastr::success('Comment post with success','', ["positionClass" => "toast-top-center"]);
    return redirect()->back();
}

Answer 2

您尚未定义$comment，只是创建了一条注释。这是抛出错误

$comment = Comment::create([
     .
     .
]);

这会解决你的问题

Answer 3

在控制器中：未定义变量$comment。

来自Laravel文档：

create方法返回保存的模型实例。

因此，解决方案是：

$comment = Comment::create([
            'comment' => $request->comment,
            'user_id' => Auth::id(),
            'event_id' => $event->id
        ]);