Laravel条件唯一验证 [英] Laravel conditional unique validation

问题描述

使用Laravel 5.4，我需要验证仅当role_id字段不是999时，users表上的email字段是否唯一.

Working with Laravel 5.4, I need to validate if the email field on the users table is unique only if the role_id field is not 999.

在注册控制器中，我这样做了:

In the Register Controller I did this:

      return Validator::make($data, [
            'first_name' => 'required|max:255',
            'last_name' => 'required|max:255',
            'email' => [
                'required',
                'email',
                'max:255',
                Rule::unique('users')->where(function($query) {
                  $query->where('role_id', '<>', 999);
    })
   ],

            'phone' => 'required|phone',
            'password' => 'required|min:6|confirmed'
        ]);

但是当我尝试注册时出现此错误:

But when I try to register I get this error:

找不到类'App \ Http \ Controllers \ Auth \ Rule'

Class 'App\Http\Controllers\Auth\Rule' not found

我在做什么错了?

谢谢

推荐答案

您必须在名称空间后文件顶部的 use 中包含 Rule 类声明:

You have to include the Rule class with a use at the top of your file after the namespace declaration:

use Illuminate\Validation\Rule; 

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