Notify user in email with Queue supported

app/Notifications/TopicReplied.php

@@ -8,7 +8,7 @@
 use Illuminate\Notifications\Messages\MailMessage;
 use App\Models\Reply;
 
-class TopicReplied extends Notification
+class TopicReplied extends Notification implements ShouldQueue
 {
     use Queueable;
 
@@ -23,7 +23,7 @@ public function __construct(Reply $reply)
     public function via($notifiable)
     {
         // 开启通知的频道
-        return ['database'];
+        return ['database', 'mail'];
     }
 
     public function toDatabase($notifiable)
@@ -43,4 +43,13 @@ public function toDatabase($notifiable)
             'topic_title' => $topic->title,
         ];
     }
+
+    public function toMail($notifiable)
+    {
+        $url = $this->reply->topic->link(['#reply' . $this->reply->id]);
+
+        return (new MailMessage)
+                    ->line('你的话题有新回复！')
+                    ->action('查看回复', $url);
+    }
 }