Php Laravel 5请求-如何显示单个验证错误

我在L5中创建了一个请求来处理保存联系人的操作，如下所示：

<?php namespace App\Http\Requests;

use App\Http\Requests\Request;

class AddContactRequest extends Request {

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'category_ids' => 'required|array|exists:categories,id',
            'gender' => 'required|in:Male,Female',
            'first_name' => 'required',
            'last_name' => 'required',
            'company' => 'required',
            'position' => 'required',
            'website_url' => 'url',
            'facebook_url' => 'url',
            'twitter_url' => 'url',
            'instagram_url' => 'url',
            'misc_url1' => 'url',
            'misc_url2' => 'url',
            'address_1' => 'required',
            'citytown' => 'required',
            'postcode' => 'required',
            'country_id' => 'required|integer|exists:countries,id',
            'work_email' => 'email',
            'home_email' => 'email',
            'work_phone' => '',
            'mobile_phone' => '',
            'home_phone' => ''
        ];
    }

    /**
     * Error messages for validation rules
     * @return array
     */
    public function messages()
    {
        return [
            'category_ids.required' => 'You must select at least one category.',
            'category_ids.array' => 'Categories must be an array.',
            'category_ids.exists' => 'The category does not exist.',
            'gender.required' => 'The gender field is required.',
            'gender.in' => 'The gender is invalid.',
            'first_name.required' => 'The first name field is required.',
            'last_name.required' => 'The last name field is required.',
            'company.required' => 'The company field is required.',
            'position.required' => 'The position field is required.',
            'website_url.url' => 'The website URL is not a valid URL.',
            'facebook_url.url' => 'The facebook URL is not a valid URL.',
            'twitter_url.url' => 'The twitter URL is not a valid URL.',
            'instagram_url.url' => 'The instagram URL is not a valid URL.',
            'misc_url1.url' => 'The miscellaneous URL 1 field is not a valid URL',
            'misc_url2.url' => 'The miscellaneous URL 2 field is not a valid URL',
            'address_1.required' => 'The address 1 field is required.',
            'citytown.required' => 'The city / town field is required.',
            'postcode.required' => 'The postcode field is required.',
            'country_id.required' => 'The country field is required.',
            'country_id.integer' => 'The country field must contain an integer.',
            'country_id.exists' => 'The country is invalid.',
            'work_email.email' => 'The work email field is not a valid email address.',
            'home_email.email' => 'The home email field is not a valid email address.'
        ];
    }

}

---

有人知道我为什么会犯这个错误吗

以单独显示错误。您应将其放置在每个元素下

<div class="error">{{ $errors->first('category_ids') }}</div>

{{$errors->first（'category_id'）}

注:

为此，您应该在css中创建一个名为

error

的类

---

这将仅在任何occcurs

正常的情况下显示错误，感谢Sulthan我能够找出它。而不是：

$messages->has('field_name')

我应该使用：

$errors->has('field_name')

---

我觉得这是一个简单的过程：

$rules=array('mobile'=>'required|numeric');
$validator=Validator::make(Input::all(),$rules);

if($validator->fails()){
    $failedRules=$validator->failed();
    if(isset($failedRules['signInType']['Required'])){
        return response()->json(["status"=>"Error","message"=>"Please enter signInType"]);
    }

    if(isset($failedRules['signInType']['Numeric'])){
        return response()->json(["status"=>"Error","message"=>"mobile must be numeric"]);
    }
}

---

很抱歉我以这种方式发布代码，因为我不知道如何发布您需要的注释。因此，如果有人对你的贡献投了更高的票，你可以提出问题和回答问题并赢得声誉。这很有效，但最好使用条件（如果其他）来显示错误容器。

$messages->has('field_name')

$errors->has('field_name')

$rules=array('mobile'=>'required|numeric');
$validator=Validator::make(Input::all(),$rules);

if($validator->fails()){
    $failedRules=$validator->failed();
    if(isset($failedRules['signInType']['Required'])){
        return response()->json(["status"=>"Error","message"=>"Please enter signInType"]);
    }

    if(isset($failedRules['signInType']['Numeric'])){
        return response()->json(["status"=>"Error","message"=>"mobile must be numeric"]);
    }
}