laravel自定义验证在ServiceProvider中定义时返回空错误 [英] laravel custom validation return empty errors when I defined it in the ServiceProvider

问题描述

当我在经过验证的服务提供者"中定义了自定义验证时.当失败时，我得到了空的MessageBox.我不明白为什么会这样.

When I defined a custom validation in the Validated Service Provider. And when it is failed I got empty MessageBox. I don't understand why it is happens.

已更新:

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;

class ValidatorServiceProvider extends ServiceProvider
{

    public function boot()
    {
        \Validator::extend('custom_validation', function ( $attribute, $value, $parameters ) {
            return false;
        } );
    }
}

在控制器中

private function isValid()
{
    $this->validation = Validator::make( $this->attributes, [
       'input' => 'custom_validation'
    ] );

    dd($this->validation->errors()); //returned 
    // MessageBag{#668 #messages: [] #format: ":message" }

} }

UPDATE2: 我的app.php文件

UPDATE2: my app.php file

'providers' => [
...
    App\Providers\ValidatorServiceProvider::class,
],

推荐答案

要创建自定义验证器，请执行以下操作: 步骤1:

To create a Custom Validator: Step 1:

-> Create a Service provide php aritsan make:proider ValidatorServiceProvider

第2步:在启动方法中将以下内容添加到您的服务提供商中

Step 2: add the following to your service provider in boot method

public function boot()
{
    Validator::extend('custom_validation', function($attribute, $value, $parameters, $validator) {

        //checks if input value is 1
       if($value = 1) return true;

        return false;
    });
}

第3步: 在提供程序部分将您提供的服务注册到config/app.php

Step 3: Register your service provide to config/app.php in provider section

    App\Providers\ValidatorServiceProvider::class

第4步(Laravel方法) 创建一个请求以验证您所有的输入字段

Step 4 (Laravel way) Create a request to validate all of your input field

php artisan make:request CustomValidationRequest

第5步: 将以下内容添加到请求中

Step 5: Add the following to the request

//validation rules
public function rules()
{
    return [
        'digit'  =>  'required|custom_validation'
    ];
}

//message
public function messages()
{
    return [
        'digit.required'    =>  'This value is required.',
        'digit.custom_validation'  =>  'This custom validation is required'
    ];
}

现在在您的控制器中使用它

Now use it in you controller

public function store(Request CustomValidationRequest)
{
  //validation will be done and send back to view if error occurred
}

希望这会有所帮助 干杯

Hopefully this will help Cheers

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