Notifications for comments not working in laravel - php

Question

error
enter image description here
I am trying to send notifications of the event when some likes and comment on his post, notifications for comments and likes working
here is my notification class.
i have error in my CommentController if ($event->user_id != $comment->user_id)
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 [
//
];
}
}
My controller function code for notifications on comments
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();
}
my CommenRequest
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

In your controller: the variable $comment is not defined.
From Laravel docs:
The create method returns the saved model instance.
so the solution is:
$comment = Comment::create([
'comment' => $request->comment,
'user_id' => Auth::id(),
'event_id' => $event->id
]);

Answer 2

you have not defined your $comment, you just created a comment. This is throwing the error
$comment = Comment::create([
.
.
]);
This will fix your issue

Answer 3

The error message was clear. $comment is undefined. Replace your controller code with the follow:
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();
}