Laravel

Question

我想使用 VacancyListRequest 传递中间件参数并使用其规则在控制器操作之前验证它们。我知道中间件充当管道模式，但是有人知道如何使用除默认 \Illuminate\Http\Request 之外的任何自定义类型吗？

中间件

public function handle(VacancyListRequest $request, Closure $next)
{
    $request = $this->analizeQuery($request);
    $request = $this->formatValues($request);
    $request = $this->prepareParams($request);

    return $next($request);
}

控制器

 public function index(VacancyListRequest $request, bool $asQuery = false)

错误

App\Http\Middleware\Vacancy\BeforeVacancyIndexRequestMiddleware::handle(): Argument #1 ($request) must be of type App\Http\Requests\Vacancy\VacancyListRequest, Illuminate\Http\Request given,

Answer 1

您收到该错误是因为您将 $request 作为类型为 VacancyListRequest 而不是类型 Illuminate\Http\Request 的中间件 handle 方法的参数传递。

你应该把中间件改成这样

use Illuminate\Http\Request;
use Closure;
 
class VacancyListRequest
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle(Request $request, Closure $next)
    {
        $request = $this->analizeQuery($request);
        $request = $this->formatValues($request);
        $request = $this->prepareParams($request);


        return $next($request);
    }
}

但是在你的controller中应该是这样的

// At the top of you controller file you add this 
use App\Http\Requests\Vacancy\VacancyListRequest;


// And define the controller method like this 
public function index(VacancyListRequest $request, bool $asQuery = false)

It's a must for the first parameter of the handle method to be of type \Illuminate\Http\Request like it defined in the docs # Defining Middleware

Laravel - 中间件自定义类型请求参数

Laravel - Middleware custom typed Request parameter

php

dependency-injection

type-hinting

laravel-8