参数 1 传递给 App\Mail\OrderPlaced::__construct()

Question

我想在 placed.plade.php balde 中显示订单信息，但它给我错误：第 77 行的 Argument 1 passed to App\Mail\OrderPlaced::__construct() must be an instance of App\Mail\ App\Order, null given, called in D:\wamp\www\aswakt\routes\web.php 即使我在模型构造函数中传递了一个参数 OrderPlaced.php.

web.php

Route::get('/mailable', function(){
    $order = App\Order::find(1);
    return new App\Mail\OrderPlaced($order);
});

OrderPlaced.php

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

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->to($this->order->billing_email,$this->order->billing_name)
                    ->bcc('another@another.com')
                    ->subject('Order for aswak tinghir ')  
                    ->markdown('emails.orders.placed');
    }

placed.blade.php

**Order ID:** {{ $order->id }}

**Order Email:** {{ $order->billing_email }}

**Order Name:** {{ $order->billing_name }}

**Order Total:** ${{ round($order->billing_total / 100, 2) }}

Answer 1

错误是因为您在 return new App\Mail\OrderPlaced($order); 传递的参数 $order 为空。这是因为在您的 orders table.

中找不到 id = 1 的订单

参数 1 传递给 App\Mail\OrderPlaced::__construct()

Argument 1 passed to App\Mail\OrderPlaced::__construct()

php

email

laravel