Question

我正在尝试将对象发送到show方法，但没有属性。

index.blade.php

<a href="{{ route('admin.specialities.show', [$speciality])}} "> {{$speciality->display_name}}</a>

web.php

 Route::resource('admin/specialities', 'SpecialtyController', 
   ['names'=> ['index' => 'admin.specialities',                                                                                                                                           
               'show'  => 'admin.specialities.show',]]);

SpecialtyController.php

namespace App\Http\Controllers;

use App\Models\Backend\Specialty;
use Illuminate\Http\Request;

class SpecialtyController extends Controller
{
    public function index() {
        return view('specialities.specialities')
            ->with(['specialities' => Specialty::all()]);
    }


    public function show(Specialty $specialty) {
        dd($specialty); //<- always null atributes
        return view('specialities.show', compact('specialty'));
    }
}

Specialty.php

namespace App\Models\Backend;

use Illuminate\Database\Eloquent\Model;

class Specialty extends Model
{
    /**
     * Get the route key for the model.
     *
     * @return string
     */
    public function getRouteKeyName()
    {
        return 'slug';
    }
}

任何想法可能出什么问题或在哪里检查？

Answer 1

您应在路线上通过id：

<a href="{{ route('admin.specialities.show', $speciality->id)}} "> {{$speciality->display_name}}</a>

在您的控制器中，您可以找到特定的模型：

public function show(id) 
{
    $speciality = Specialty::FindOrFail($id);
    return view('specialities.show', compact('speciality'));
}

将索引方法更改为：

public index()
{
    $specialities = Specialty::all();
    return view('specialities.specialities', compact('specialities'));
}

注意

声明变量时要小心，您有一个名为 Specialty 的模型，但是表示该模型的变量为$speciality

将对象发送到控制器中的“ show”方法时为空请求

1 个答案: