我有两个表products_description
与主键和第二个表orders_products
与外键链接这两个表。我们可以说一个产品可以有很多订单。Laravel与雄辩的关系
我为这两个表格创建了以下模型。
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";
}
在我的控制器类下面的代码
class products_controller extends Controller
{
public function show1(Products_description $Products_description)
{
return view('products.show',compact('Products_description'));
}
}
我show.blade.php文件下面的代码
@extends('layout')
@section('content')
{{ $Products_description->products_name }}
@foreach($Products_description->orders_products as $Orders_product)
{{ $Orders_product->orders_id }}
@endforeach
@stop
,我想先显示产品名称然后是该产品所在的订单ID。但是我收到以下错误。没有foreach循环,产品名称显示正常。
试图让非对象的属性(查看:C:\ WAMP \ WWW \ laravel1 \资源\意见\产品\ 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
通过从模型中删除第一行,它会在'where子句中给出以下错误Unknown列'orders_products.products_description_id'。因为Laravel或Eloquent尝试从表名中获取主键和外键,所以我们如何定义与表名不同的主键和外键。 – Murtaza
其次,我已经使用'路径模型绑定'和'类型提示',我可以使用compact('Products_description'),它能够在show.blade.php上成功显示产品名称,并且看起来不是这个原因错误。 – Murtaza