Question

我按照this教程设置了一个CRUD示例。但我不能让它工作，我不知道为什么。这是我的代码

SomeitemCrudController.php

<?php

namespace App\Http\Controllers\Admin;

use Backpack\CRUD\app\Http\Controllers\CrudController;

// VALIDATION: change the requests to match your own file names if you need form validation
use App\Http\Requests\SomeitemRequest as StoreRequest;
use App\Http\Requests\SomeitemRequest as UpdateRequest;

class SomeitemCrudController extends CrudController
{

    public function setUp()
    {
        /*
        |--------------------------------------------------------------------------
        | BASIC CRUD INFORMATION
        |--------------------------------------------------------------------------
        */
        $this->crud->setModel("App\Models\Someitem");
        $this->crud->setRoute("admin/someitem");
        $this->crud->setEntityNameStrings('someitem', 'someitems');

        /*
        |--------------------------------------------------------------------------
        | BASIC CRUD INFORMATION
        |--------------------------------------------------------------------------
        */

        $this->crud->setFromDb();

        // $this->crud->setColumns(['nama']);
        $this->crud->addField([
            'nama' => 'Nama',
            'keterangan' => 'Keterangan',
            'harga' => 'Harga'
        ]);
    }

    public function store(StoreRequest $request)
    {
        $redirect_location = parent::storeCrud();
        return $redirect_location;
    }

    public function update(UpdateRequest $request)
    {
        $redirect_location = parent::updateCrud();
        return $redirect_location;
    }
}

模型，Someitem.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Backpack\CRUD\CrudTrait;

class SomeItem extends Model
{
    use CrudTrait;
    //

    protected $table = 'someitem';
    protected $fillable = ['nama', 'keterangan', 'harga'];
    public $timestamps = true;
}

请求，SomeitemRequest.php

<?php

namespace App\Http\Requests;

use App\Http\Requests\Request;

class SomeitemRequest extends \Backpack\CRUD\app\Http\Requests\CrudRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return \Auth::check();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            // 'name' => 'required|min:5|max:255'
        ];
    }

    /**
     * Get the validation attributes that apply to the request.
     *
     * @return array
     */
    public function attributes()
    {
        return [
            //
        ];
    }

    /**
     * Get the validation messages that apply to the request.
     *
     * @return array
     */
    public function messages()
    {
        return [
            //
        ];
    }
}

然后是路线

<?php

Route::group([
    'prefix' => config('backpack.base.route_prefix', 'admin'),
    'middleware' => ['admin'],
    'namespace' => 'Admin'
], function() {
    CRUD::resource('pelayanan', 'Admin\PelayananCrudController');
    Route::get('/test', function () {
        return view('welcome');
    });
});

我可以成功访问http://localhost/myapp/public/admin/test，但我无法访问http://localhost/myapp/public/admin/someitem，它始终返回错误500

我是laravel（和PHP）的新手，感谢任何帮助。谢谢！

Answer 1

我想让我的答案非常详细，这就是为什么我从一开始就开始它的原因。我使用的CRUD背包的版本是^ 3.2。

查看此文件your-project/vendor/backpack/crud/src/CrudServiceProvider.php 是的我知道班级名称不是CRUD而是CrudServiceProvider。这是因为他们在register中使用了CrudServiceProvider方法，而在$loader->alias('CRUD', \Backpack\CRUD\CrudServiceProvider::class);中他们CRUD CrudServiceProvider使CRUD::resource()类属于CrudServiceProvider::resource()。通过阅读Laravel Service Providers，Service Container和Facades了解有关其工作原理的更多信息。
所以我们已经发现return new CrudRouter($name, $controller, $options);实际上意味着CrudRouter，所以在这个方法中，你只会找到一行CRUD::resource('pelayanan', 'Admin\PelayananCrudController');知道（如果我错误地纠正了我），它被称为Factory pattern/method。所以转到Route::post('pelayanan/search', [ 'as' => 'crud.pelayanan.search', 'uses' => 'Admin\PelayananCrudController@search', ]); Route::get('pelayanan/reorder', [ 'as' => 'crud.pelayanan.reorder', 'uses' => 'Admin\PelayananCrudController@reorder', ]); Route::post('pelayanan/reorder', [ 'as' => 'crud.pelayanan.save.reorder', 'uses' => 'Admin\PelayananCrudController@saveReorder', ]); Route::get('pelayanan/{id}/details', [ 'as' => 'crud.pelayanan.showDetailsRow', 'uses' => 'Admin\PelayananCrudController@showDetailsRow', ]); Route::get('pelayanan/{id}/translate/{lang}', [ 'as' => 'crud.pelayanan.translateItem', 'uses' => 'Admin\PelayananCrudController@translateItem', ]); Route::get('pelayanan/{id}/revisions', [ 'as' => 'crud.pelayanan.listRevisions', 'uses' => 'Admin\PelayananCrudController@listRevisions', ]); Route::post('pelayanan/{id}/revisions/{revisionId}/restore', [ 'as' => 'crud.pelayanan.restoreRevision', 'uses' => 'Admin\PelayananCrudController@restoreRevision', ]);构造函数（Github）。仔细阅读。所以它的基本功能是代替这个

public/admin/someitem

它会放置这样的东西

artisan route:list

你说你无法访问`Route::resource($this->name, $this->controller, $options_with_default_route_names);`.这是真的，因为你没有路由（实际上用index检查cli中的路由）。但背包开发者做了一件事（实际上并不知道为什么）他们通过调用

destructor

php artisan vendor:publish --provider="Backpack\Base\BaseServiceProvider"

实际应该可行，如果不是，请检查CGFloat xScale = self.view.transform.a; CGFloat yScale = self.view.transform.d;（CrudController）的行为。

还有一件事可能是你忘了{{1}}而你没有查看文件，这就是你得到500错误的原因。

如果您有更多问题，请询问。

Laravel Backpack CRUD无法正常工作

1 个答案: