Laravel 5.4 带有请求和参数的路由
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Laravel 5.4 Route with Request and Params
提问by JREAM
I found myself stuck or lost in docs!
我发现自己卡在或迷失在文档中！
I'm using Laravel 5.4and I'm trying to create validation in a controllerwhich requires a request object.
我正在使用Laravel 5.4，我正在尝试在需要请求对象的控制器中创建验证。
My problem is my route passes parameters, I can't find in the docs an example how you include the Request $requestargument and the $idparameter in a Controller method.
我的问题是我的路由传递参数，我在文档中找不到如何在 Controller 方法中包含Request $request参数和$id参数的示例。
Here is my example:
这是我的例子：
1: SomeController.php
1：SomeController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
...
public function edit($id) {
$request = Request; // <-- Do I use that instead of passing an arg?
}
2: Routes with a Paramter in -- routes/web.php
2：带有参数的路由--routes/web.php
Route::match(['GET', 'POST'], '/some/edit/{id}', 'SomeController@edit');
In their example @ https://laravel.com/docs/5.4/requests#accessing-the-requestthey have
Request $requestthis in their controller, but what happens to Route parameters?:
在他们的示例@ https://laravel.com/docs/5.4/requests#accessing-the-request
Request $request中，他们的控制器中有这个，但是路由参数会发生什么？：
public function store(Request $request) {}
Question: Do I need to edit the route or is the first parameter ignored if its a request?
问题：我是否需要编辑路由，或者如果它是一个请求，第一个参数是否被忽略？
A: Or would I do this in **SomeController.php?**
A: 或者我会在 **SomeController.php 中做这个吗？**
public function edit(Request $request, $id)
{
// I would get the $request, but what happens to $id?
$this->validate($request, [
'title' => 'required|unique:posts|max:255',
]);
}
B: Perhaps, something like this?:
B：也许，像这样？：
public function edit($id)
{
// Or Request::getInstance()?
$this->validate(Request, [
'title' => 'required|unique:posts|max:255',
]);
}
Any advice would help, or even an example!
任何建议都会有所帮助，甚至是一个例子！
回答by EddyTheDove
Doing
正在做
public function edit(Request $request, $id)
should match the route you already have. So it's ok to do that. Request $requesthere is not a required parameter that you pass. Laravel will take care of it.
应该与您已有的路线相匹配。所以这样做是可以的。Request $request这里不是您传递的必需参数。Laravel 会处理它。
It works this way because everytime you send a request, well Laravel 'sends' a request for you (GET, POST). So, it always exist. But you can use use it within your controller if you dont pass it to the controller function as a parameter.
它以这种方式工作，因为每次您发送请求时，Laravel 都会为您“发送”一个请求（GET、POST）。所以，它一直存在。但是如果你不将它作为参数传递给控制器函数，你可以在你的控制器中使用它。
However, you can access it through the global helper function request()if you dont want to pass it as a function parameter.
但是，request()如果您不想将其作为函数参数传递，则可以通过全局辅助函数访问它。
$request = request();
$name = $request->name; // or
$name = request('name');
