Laravel Vuejs 实战：开发知乎 （24）站内信通知

  1 <?php
  2 
  3 namespace App\Notifications;
  4 
  5 use App\User;
  6 use Illuminate\Bus\Queueable;
  7 use Illuminate\Contracts\Queue\ShouldQueue;
  8 use Illuminate\Notifications\Messages\MailMessage;
  9 use Illuminate\Notifications\Notification;
 10 
 11 class NewUserFollowNotification extends Notification
 12 {
 13     use Queueable;
 14     /**
 15      * @var User
 16      */
 17     private $user;
 18 
 19     /**
 20      * Create a new notification instance.
 21      *
 22      * @param $user
 23      */
 24     public function __construct($user)
 25     {
 26         //
 27         $this->user = $user;
 28     }
 29 
 30     /**
 31      * Get the notification‘s delivery channels.
 32      *
 33      * @param mixed $notifiable
 34      * @return array
 35      */
 36     public function via($notifiable)
 37     {
 38         return [‘database‘];
 39     }
 40 
 41     /**
 42      * Get the mail representation of the notification.
 43      *
 44      * @param mixed $notifiable
 45      * @return \Illuminate\Notifications\Messages\MailMessage
 46      */
 47     public function toMail($notifiable)
 48     {
 49         return (new MailMessage)
 50             ->line(‘The introduction to the notification.‘)
 51             ->action(‘Notification Action‘, url(‘/‘))
 52             ->line(‘Thank you for using our application!‘);
 53     }
 54 
 55     /**
 56      * Get the array representation of the notification.
 57      *
 58      * @param mixed $notifiable
 59      * @return array
 60      */
 61     public function toArray($notifiable)
 62     {
 63         return [
 64             //
 65         ];
 66     }
 67 
 68 
 69     /**
 70      * 添加一个方法，方法名要与via中添加的database 一致 to加上Database
 71      * @param $notifiable
 72      * @return array
 73      */
 74     public function toDatabase($notifiable)
 75     {
 76         return [
 77             //要记录的数据
 78             ‘name‘ => $this->user->name,
 79         ];
 80     }
 81 }
 82 
 83 

  1 <?php
  2 
  3 namespace App\Http\Controllers;
  4 
  5 use App\Notifications\NewUserFollowNotification;
  6 use App\User;
  7 use Illuminate\Http\Request;
  8 use Illuminate\Support\Facades\Notification;
  9 
 10 class FollowerController extends Controller
 11 {
 12     //
 13     public function __construct()
 14     {
 15         $this->middleware(‘auth‘)
 16             ->except(
 17                 [
 18                     ‘getFollowStats‘,
 19                     ‘followThroughApi‘,
 20                 ]
 21             );
 22     }
 23 
 24 
 25     public function getFollowStats(Request $request)
 26     {
 27         //解析出用户
 28         $user = User::find($request->get(‘user‘));
 29         //解析出当前登录用户
 30         $currentUser = auth()->user();
 31         //返回能否关注的状态 [follow是FollowPolicy中的follow方法，FollowPolicy已经在AuthServiceProvider中注册]
 32         return response()->json(
 33             [
 34                 ‘followable‘ => $currentUser->can(‘follow‘, $user),
 35                 ‘self‘ => $user->id === $currentUser->id,
 36             ]
 37         );
 38     }
 39 
 40 
 41     public function followThroughApi(Request $request)
 42     {
 43         //解析出用户
 44         $user = User::find($request->get(‘user‘));
 45 
 46         //解析出当前登录用户
 47         $currentUser = User::find(auth()->user()->id);
 48 
 49         //执行关注/取关操作 [不能关注自己]
 50         if ($user->id !== $currentUser->id) {
 51             //入库操作
 52             $currentUser->followings()->toggle($user->id);
 53 
 54             if (!($currentUser->can(‘follow‘, $user))) //如果关注已经入库成功[可关注状态为false]，那就要通知，否则就是取关，不用通知
 55             {
 56                 //通知被关注用户
 57                 Notification::send($user, new NewUserFollowNotification($currentUser));
 58             }
 59         }
 60 
 61         //返回新能否关注的状态 [follow是FollowPolicy中的follow方法，FollowPolicy已经在AuthServiceProvider中注册]
 62         return response()->json(
 63             [
 64                 ‘followable‘ => $currentUser->can(‘follow‘, $user),
 65                 ‘self‘ => $user->id === $currentUser->id,
 66             ]
 67         );
 68     }
 69 }
 70 
 71 

  1 @extends(‘layouts.app‘)
  2 @section(‘content‘)
  3     <div class="container">
  4         <div class="row">
  5             <div class="card">
  6                 <div class="card-header">
  7                     你有新的消息！
  8                 </div>
  9                 <div class="card-body">
 10                     @forelse($user->notifications as $notification)
 11                         <p class="text text-warning"> {{ snake_case(class_basename($notification->type)) }}</p>
 12                     @empty
 13                     @endforelse
 14                 </div>
 15             </div>
 16         </div>
 17     </div>
 18 @endsection

  1 <li class="text-success">
  2     {{ $notification->data[‘name‘]."关注了你" }}
  3 </li>
  4 
  5 

  1 @extends(‘layouts.app‘)
  2 @section(‘content‘)
  3     <div class="container">
  4         <div class="row">
  5             <div class="card">
  6                 <div class="card-header">
  7                     你有新的消息！
  8                 </div>
  9                 <div class="card-body">
 10                     @forelse($user->notifications as $notification)
 11                         <p class="text text-warning">
 12                             @include(‘notifications.‘.snake_case(class_basename($notification->type)))
 13                         </p>
 14                     @empty
 15                     @endforelse
 16                 </div>
 17             </div>
 18         </div>
 19     </div>
 20 @endsection

  1 <?php
  2 
  3 /*
  4 |--------------------------------------------------------------------------
  5 | Web Routes
  6 |--------------------------------------------------------------------------
  7 |
  8 | Here is where you can register web routes for your application. These
  9 | routes are loaded by the RouteServiceProvider within a group which
 10 | contains the "web" middleware group. Now create something great!
 11 |
 12 */
 13 
 14 Route::get(‘/‘, function () {
 15     return view(‘welcome‘);
 16 });
 17 
 18 Auth::routes([‘verify‘ => true]);
 19 
 20 Route::get(‘/home‘, ‘HomeController@index‘)->name(‘home‘);
 21 
 22 Route::resource(‘questions‘, ‘QuestionController‘);
 23 
 24 
 25 #region 回答路由CRUD
 26 
 27 //查看回答 以及 回答的form 都是在questions详细内容页面
 28 
 29 //提交回答
 30 Route::post(‘questions/{question}/answers‘, ‘AnswerController@store‘)->name(‘answers.store‘);
 31 
 32 //更新回答
 33 
 34 
 35 //删除回答
 36 
 37 
 38 #endregion
 39 
 40 
 41 #region
 42 //用户关注 取消关注问题
 43 Route::get(‘questions/{question}/follow‘, ‘QuestionController@follow‘)->name(‘questions.follow‘);
 44 #endregion
 45 
 46 
 47 #region
 48 
 49 //用户通知消息路由
 50 Route::get(‘/notifications‘, ‘NotificationController@index‘)->name(‘notification.index‘);
 51 #endregion
 52 
 53 

  1 <?php
  2 
  3 namespace App\Http\Controllers;
  4 
  5 use App\User;
  6 use Illuminate\Http\Request;
  7 
  8 class NotificationController extends Controller
  9 {
 10     //
 11     public function index()
 12     {
 13         $user = auth()->user();
 14 
 15         return view(‘notifications.index‘, compact(‘user‘));
 16     }
 17 }
 18 
 19