如何解决对未定义方法 Illuminate\Database\Query\Builder::notify() 的调用？ (laravel 5.3)答案

【问题标题】：How to solve Call to undefined method Illuminate\Database\Query\Builder::notify()? (laravel 5.3)如何解决对未定义方法 Illuminate\Database\Query\Builder::notify() 的调用？ (laravel 5.3)
【发布时间】：2017-05-28 09:23:49
【问题描述】：

我在控制器中创建的函数是这样的：

public function create()
{ 
    // This is dummpy data to testing checkout order event
    $data = array(
                'number'            => '2', 
                'user'              => 'chelsea',
                'store'             => 'chelsea shop', 
                'total_amount'      => 11000000, 
                'total_product'     => 2,
                'status'            => '92000000', 
                'delivery_address'  => 'london',
                'email'             => 'chelsea@gmail.com'
            );
    $data = Order::where('number', $data['number'])->first();
    \Event::fire(new CheckoutOrderEvent($data));
}

我的 CheckoutOrderListener 是这样的：

<?php
namespace App\Listeners;
use App\Events\CheckoutOrderEvent;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
class CheckoutOrderListener
{
    public function __construct()
    {
        //
    }

    public function handle(CheckoutOrderEvent $event)
    {
        $event->data->notify(New \App\Notifications\CheckoutOrder());
    }
}

我在模型顺序中添加了使用Illuminate\Notifications\Notifiable;

但是，执行时，存在错误：Call to undefined method Illuminate\Database\Query\Builder::notify()

有人可以帮助我吗？

更新

完整的错误是这样的：

BadMethodCallException in Builder.php line 2440: Call to undefined method Illuminate\Database\Query\Builder::notify()

    in Builder.php line 2440
    at Builder->__call('notify', array(object(CheckoutOrder)))
    at call_user_func_array(array(object(Builder), 'notify'), array(object(CheckoutOrder))) in Builder.php line 1438
    at Builder->__call('notify', array(object(CheckoutOrder)))
    at call_user_func_array(array(object(Builder), 'notify'), array(object(CheckoutOrder))) in compiled.php line 11602
    at Model->__call('notify', array(object(CheckoutOrder))) in CheckoutOrderListener.php line 33
    at CheckoutOrderListener->handle(object(CheckoutOrderEvent))
    at call_user_func_array(array(object(CheckoutOrderListener), 'handle'), array(object(CheckoutOrderEvent))) in compiled.php line 10127
    at Dispatcher->Illuminate\Events\{closure}(object(CheckoutOrderEvent))
    at call_user_func_array(object(Closure), array(object(CheckoutOrderEvent))) in compiled.php line 10067
    at Dispatcher->fire('App\Events\CheckoutOrderEvent') in compiled.php line 6290
    at Facade::__callStatic('fire', array(object(CheckoutOrderEvent))) in OrderController.php line 68
    at OrderController->create()
    at call_user_func_array(array(object(OrderController), 'create'), array()) in compiled.php line 9385
    at Controller->callAction('create', array()) in compiled.php line 9412
    at ControllerDispatcher->dispatch(object(Route), object(OrderController), 'create') in compiled.php line 8470
    at Route->runController() in compiled.php line 8451
    at Route->run(object(Request)) in compiled.php line 8147
    at Router->Illuminate\Routing\{closure}(object(Request)) in Pipeline.php line 53
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 9978
    at SubstituteBindings->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 3151
    at VerifyCsrfToken->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 13467
    at ShareErrorsFromSession->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 11907
    at StartSession->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 13213
    at AddQueuedCookiesToResponse->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 13150
    at EncryptCookies->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 9855
    at Pipeline->then(object(Closure)) in compiled.php line 8148
    at Router->runRouteWithinStack(object(Route), object(Request)) in compiled.php line 8139
    at Router->dispatchToRoute(object(Request)) in compiled.php line 8130
    at Router->dispatch(object(Request)) in compiled.php line 2472
    at Kernel->Illuminate\Foundation\Http\{closure}(object(Request)) in Pipeline.php line 53
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 3213
    at CheckForMaintenanceMode->handle(object(Request), object(Closure)) in compiled.php line 9870
    at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
    at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 9855
    at Pipeline->then(object(Closure)) in compiled.php line 2416
    at Kernel->sendRequestThroughRouter(object(Request)) in compiled.php line 2400
    at Kernel->handle(object(Request)) in index.php line 53

我的 CheckoutOrderEvent 是这样的：

<?php
namespace App\Events;
use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
class CheckoutOrderEvent
{
    use InteractsWithSockets, SerializesModels;
    public $data;

    public function __construct($data)
    {
        $this->data = $data;
    }
    public function broadcastOn()
    {
        return new PrivateChannel('channel-name');
    }
}

我的 CheckoutOrder 是这样的：

<?php
namespace App\Notifications;
use Illuminate\Bus\Queueable;
use Illuminate\Notifications\Notification;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
class CheckoutOrder extends Notification
{
    use Queueable;
    public function __construct()
    {
        //
    }
    public function via($notifiable)
    {
        return ['mail'];
    }
    public function toMail($notifiable)
    {
        return (new MailMessage)
                    ->line('The introduction to the notification.')
                    ->action('Notification Action', 'https://laravel.com')
                    ->line('Thank you for using our application!');
    }
    public function toArray($notifiable)
    {
        return [
            //
        ];
    }
}

我的模型顺序是这样的：

use Eloquent as Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Notifications\Notifiable;

class Order extends Model
{
    use SoftDeletes;
..........

【问题讨论】：

你能把整个错误堆栈贴给我们吗？这里的证据并不能真正告诉我们问题出在哪里。似乎事件的 $data 属性仍然是一个查询构建器 - 在您的 store 中，您确实调用了 ->first() 来获取模型。
@Lionel Chan，我更新了我的问题
展示你的App\Event\CheckoutOrderEvent类怎么样
@Lionel Chan，我更新了我的问题
奇怪的是您显示的代码和错误不相符。代码清楚地表明您将Order 模型传递给事件，但在您的错误堆栈中，它表示它试图在名为CheckoutOrder 的对象（可能是模型）上调用notify。我错过了什么吗？

标签： php laravel sendmail laravel-5.3

【解决方案1】：

从讨论中我发现您没有在 Order 模型中包含 Notifiable 特征。改为这样做：

use Eloquent as Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Notifications\Notifiable;

class Order extends Model
{
    use SoftDeletes, Notifiable;
    ..........

通过包含它，您的模型现在应该具有应有的notify 方法，因此可以在通知系统中使用。

【讨论】：

【解决方案2】：

我在输入类似

的查询时也遇到了这个错误

$data = DB::abcd("Select * from xyz"); ,(abcd->filename)

但是我们需要放

$data = DB::select("Select * from xyz");

【讨论】：