我有兩個表products_description
與主鍵和第二個表orders_products
與外鍵鏈接這兩個表。我們可以說一個產品可以有很多訂單。Laravel與雄辯的關係
我爲這兩個表格創建了以下模型。
namespace App;
use Illuminate\Database\Eloquent\Model;
class products_description extends Model
{
protected $table = "products_description";
protected $primaryKey = "products_id";
public function orders_products()
{
return $this->belongsTo('App\Orders_product','products_id','products_id');
return $this->hasMany(Orders_product::class);
}
}
和
namespace App;
use Illuminate\Database\Eloquent\Model;
class Orders_product extends Model
{
protected $primaryKey = "orders_products_id";
}
在我的控制器類下面的代碼
class products_controller extends Controller
{
public function show1(Products_description $Products_description)
{
return view('products.show',compact('Products_description'));
}
}
我show.blade.php文件下面的代碼
@extends('layout')
@section('content')
{{ $Products_description->products_name }}
@foreach($Products_description->orders_products as $Orders_product)
{{ $Orders_product->orders_id }}
@endforeach
@stop
,我想先顯示產品名稱然後是該產品所在的訂單ID。但是我收到以下錯誤。沒有foreach循環,產品名稱顯示正常。
試圖讓非對象的屬性(查看:C:\ WAMP \ WWW \ laravel1 \資源\意見\產品\ show.blade.php)
in 0bb3f93ed324818ac22ad70d47add00a1c4f8a7c.php line 11
at CompilerEngine->handleViewException(object(ErrorException), '1') in PhpEngine.php line 44
at PhpEngine->evaluatePath('C:\wamp\www\laravel1\storage\framework\views/0bb3f93ed324818ac22ad70d47add00a1c4f8a7c.php', array('__env' => object(Factory), 'app' => object(Application), 'errors' => object(ViewErrorBag), 'Products_description' => object(products_description))) in CompilerEngine.php line 59
at CompilerEngine->get('C:\wamp\www\laravel1\resources\views/products/show.blade.php', array('__env' => object(Factory), 'app' => object(Application), 'errors' => object(ViewErrorBag), 'Products_description' => object(products_description))) in View.php line 149
通過從模型中刪除第一行,它會在'where子句中給出以下錯誤Unknown列'orders_products.products_description_id'。因爲Laravel或Eloquent嘗試從表名中獲取主鍵和外鍵,所以我們如何定義與表名不同的主鍵和外鍵。 – Murtaza
其次,我已經使用'路徑模型綁定'和'類型提示',我可以使用compact('Products_description'),它能夠在show.blade.php上成功顯示產品名稱,並且看起來不是這個原因錯誤。 – Murtaza