laravel 缺少 App\Http\Controllers\ProductsController::edit() 的参数 1
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Missing argument 1 for App\Http\Controllers\ProductsController::edit()
提问by Archie Rombo
Im working on editing of an already saved product and i am getting the following error message on my browser
我正在编辑已保存的产品，但在浏览器上收到以下错误消息
ErrorException in ProductsController.php line 88:
Missing argument 1 for App\Http\Controllers\ProductsController::edit()
in ProductsController.php line 88
My route controller is as below:
我的路由控制器如下：
Route::get('productsedit', array('as'=> '/productsedit','uses'=>'ProductsController@edit'));
The function is as below
功能如下
public function edit($id)
{
//find the post in the db and sav it as a variable
$product = Products:: findOrFail($id);
//return view and pass in the var previously created
return view('/productsedit')->withProducts($product);
}
Where iam i going wrong
我哪里出错了
回答by Christophvh
In your edit method on your ProductsController you require a parameter ($id), but you don't have that value in your route . Which is what this error is saying.
在您的 ProductsController 上的编辑方法中，您需要一个参数 ( $id)，但您的 route 中没有该值。这就是这个错误所说的。
[Missing argument 1 for App\Http\Controllers\ProductsController::edit()]
[缺少 App\Http\Controllers\ProductsController::edit() 的参数 1]
Your route:
您的路线：
Route::get('productsedit', array('as'=> '/productsedit','uses'=>'ProductsController@edit'));
Will have to change to something like this:
将不得不更改为这样的：
Route::get('products/{$id}/edit', 'ProductsController@edit');
When calling the route in your view it will have to look something like this:
在您的视图中调用路由时，它必须如下所示：
'products/{{$product->id}}/edit'
Extra: You might want to take a look at Resource controllers since you are not really following restfull practices when it comes to your routes https://laravel.com/docs/5.4/controllers#resource-controllers
额外：你可能想看看资源控制器，因为你在路由方面并没有真正遵循 restfull 实践 https://laravel.com/docs/5.4/controllers#resource-controllers
回答by Datha Reico
your should give route id
你应该给路线ID
Route::get('productsedit/{id}', array('as'=> '/productsedit','uses'=>'ProductsController@edit'));
Route::get('productsedit/{id}', array('as'=> '/productsedit','uses'=>'ProductsController@edit'));
and in your function should like this
并且在你的函数中应该是这样的
`public function edit($id = null)
{
//find the post in the db and sav it as a variable
$product = Products:: findOrFail($id);
//return view and pass in the var previously created
return view('/productsedit')->withProducts($product);
}`
hope this work !!!
希望这项工作！
