Laravel:自定义或扩展通知 - 数据库模型

Question

恕我直言，当前用于在 Laravel 中保存通知的数据库 channel 设计非常糟糕:

您不能在项目上使用外键级联来清理已删除项目的通知，例如

在 data 中搜索自定义属性列(转换为数组)不是最佳的

您将如何扩展 DatabaseNotification供应商包中的模型？

我想添加列 event_id , question_id , user_id (创建通知的用户)等...到默认 Laravel notifications table

你如何覆盖send功能以包含更多列？

在:

vendor/laravel/framework/src/Illuminate/Notifications/Channels/DatabaseChannel.php

编码:

class DatabaseChannel
{
 /**
  * Send the given notification.
  *
  * @param  mixed  $notifiable
  * @param  \Illuminate\Notifications\Notification  $notification
  * @return \Illuminate\Database\Eloquent\Model
  */
 public function send($notifiable, Notification $notification)
 {
    return $notifiable->routeNotificationFor('database')->create([
        'id' => $notification->id,
        'type' => get_class($notification),

      \\I want to add these
        'user_id' => \Auth::user()->id,
        'event_id' => $notification->type =='event' ? $notification->id : null, 
        'question_id' => $notification->type =='question' ? $notification->id : null,
      \\End adding new columns

        'data' => $this->getData($notifiable, $notification),
        'read_at' => null,
    ]);
 }
}

Answer 1

创建自定义通知 channel :

首先，在 App\Notifications 中创建一个类，例如:

<?php

namespace App\Notifications;

use Illuminate\Notifications\Notification;

class CustomDbChannel 
{

  public function send($notifiable, Notification $notification)
  {
    $data = $notification->toDatabase($notifiable);

    return $notifiable->routeNotificationFor('database')->create([
        'id' => $notification->id,

        //customize here
        'answer_id' => $data['answer_id'], //<-- comes from toDatabase() Method below
        'user_id'=> \Auth::user()->id,

        'type' => get_class($notification),
        'data' => $data,
        'read_at' => null,
    ]);
  }

}

二、在via中使用这个 channel 通知类中的方法:

<?php

namespace App\Notifications;

use Illuminate\Notifications\Notification;

use App\Notifications\CustomDbChannel;

class NewAnswerPosted extends Notification
{
  private $answer;

  public function __construct($answer)
  {
    $this->answer = $answer;
  }

  public function via($notifiable)
  {
    return [CustomDbChannel::class]; //<-- important custom Channel defined here
  }

  public function toDatabase($notifiable)
  {
    return [
      'type' => 'some data',
      'title' => 'other data',
      'url' => 'other data',
      'answer_id' => $this->answer->id //<-- send the id here
    ];
  }
}