如何使用 Laravel 自定义消息验证器答案

【问题标题】：How to custom message validator with Laravel如何使用 Laravel 自定义消息验证器
【发布时间】：2021-11-14 15:25:05
【问题描述】：

我正在制作一个 API，允许用户输入一些信息，如电子邮件、电话号码、地址...... 但是如果用户输入错误的电话号码，验证错误是

{
  "message": "The given data was invalid.",
  "errors": {
    "phone": [
      "The phone has already been taken."
    ]
  }
}

如你所见，返回的消息是

"message": "The given data was invalid."

。但我期待的消息是The phone has already been taken。如何按预期自定义消息？使用电子邮件验证器，消息是相同的，但密钥是 email。我期望的消息是

"message": "The ... has already been taken. "

我正在使用 laravel 8 并在请求中验证示例函数rules()

    public function rules()
    {
        return [
            'profile_img' => 'nullable|image|mimes:jpeg,png,jpg,gif,svg|max:' . config('filesystems.max_upload_size'),
            'name' => 'nullable|min:3',
            'phone' => [
                'required',
                'numeric',
                new UpdatePhoneRule(User::TYPE_CLIENT),
            ],
            'email' => [
                'nullable',
                'email',
                new UpdateEmailRule(User::TYPE_CLIENT),
            ]
        ];
    }

谢谢

【问题讨论】：

标签： laravel validation

【解决方案1】：

在请求 php 文件中，您可以使用此函数 failedValidation() 并传入验证器。这样，您可以在验证失败时更改或自定义响应。

use Illuminate\Http\Exceptions\HttpResponseException;
use Illuminate\Contracts\Validation\Validator;

    protected function failedValidation(Validator $validator) {
        throw new HttpResponseException(response()->json(['status'=>'failed',
                                                    'message'=>'unprocessable entity',
                                                    'errors'=>$validator->errors()->all()], 422));
    }

示例响应在这里..

{
"status": "failed",
"message": "unprocessable entity",
"errors": [
    "The name must be a string.",
    "One or more users is required"
 ]
}

如您所见，消息已更改，您可以对响应消息执行任何操作。

你也可以试试这个

$validator->errors()->messages()[keyname]

【讨论】：

谢谢，成功了。

【解决方案2】：

您可以在 lang 文件中执行此操作：resources/lang/en/validation.php。例如，如果您只想更改整个应用程序中电子邮件字段上唯一规则的消息，您可以这样做：

/*
|--------------------------------------------------------------------------
| Custom Validation Language Lines
|--------------------------------------------------------------------------
|
| Here you may specify custom validation messages for attributes using the
| convention "attribute.rule" to name the lines. This makes it quick to
| specify a specific custom language line for a given attribute rule.
|
*/

'custom' => [
    'attribute-name' => [
        'rule-name' => 'custom-message',
    ],
    'email' => [
        'unique' => 'This email is already registered...etc',
    ]
],

【讨论】：

【解决方案3】：

您必须在验证中使用unique

$this->validate(
    $request, 
    [   
        'email'             => 'required|unique:your_model_names',
        'phone'             => 'required|unique:your_model_names'
    ],
    [   
        'email.required'    => 'Please Provide Your Email Address For Better Communication, Thank You.',
        'email.unique'      => 'Sorry, This Email Address Is Already Used By Another User. Please Try With Different One, Thank You.',
        'phone.required' => 'Your custom message',
        'phone.unique'      => 'The phone has already been taken'
    ]
);

【讨论】：

谢谢，但这不是我期望的结果。非常感谢