Question

我正在为两个字段（URL和附件字段）创建自定义验证。我试图验证两个字段都只需要一个字段，但是当用户同时填写两个字段时，他只能填写任何一个字段都会出错。

为此，我在AppServiceProvider.php中做到了：

    <?php

    namespace App\Providers;

    use Illuminate\Support\ServiceProvider;
    use Illuminate\Support\Facades\Validator;

    class AppServiceProvider extends ServiceProvider
    {
      /**
       * Register any application services.
       *
       * @return void
       */
      public function register()
      {
        //
      }

      /**
       * Bootstrap any application services.
       *
       * @return void
       */
      public function boot()
      {  

        Validator::extend('empty_if', function($attribute, $value, $parameters, $validator) {
            $fields = $validator->getData(); //data passed to your validator

            foreach($parameters as $param) {
                $excludeValue = array_get($fields, $param, false);
                // dd($excludeValue);

                if($excludeValue) { //if exclude value is present validation not passed
                    return true;
                }
            }

            return true;
        });

        Validator::replacer('empty_if', function($message, $attribute, $rule, $parameters){
            $replace = [$attribute, $parameters[0]];
            $message = "The field :attribute cannot be filled if :other is also filled";
            return  str_replace([':attribute', ':other'], $replace, $message);
        });
      }
    }

以及在我的控制器中：

    public function createFile(Request $request){
          $this->validate($request,[
              'url' => 'empty_if:attachment|url|URL|string',
              'attachment' => 'empty_if:url|attachment',
              'attachment.*' => 'mimes:jpg,jpeg,bmp,png,doc,docx,zip,rar,pdf,rtf,xlsx,xls,txt,csv|max:1999',
              'client' => 'required|string',
              'projectTask' => 'required',
        ]);
    }

提交表单时出现此错误：

    message:    Method Illuminate\Validation\Validator::validateAttachment does not exist.
    exception:  BadMethodCallException

请告诉我，extend（）的逻辑中是否有任何错误。我在哪里做错了，所以我得到了这个错误。在此先感谢

Answer 1

您的问题是这一行：

'attachment' => 'empty_if:url|attachment',

这里说要使用attachment规则和（不存在的）empty_if:url规则来验证attachment字段。

使用自定义验证extend（）时，获取方法Illuminate \ Validation \ Validator :: validateError不存在

1 个答案: