Question

我在L5中创建了一个请求来处理保存联系人的情况：

<?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.'
        ];
    }

}

验证失败后，我可以使用以下代码输出视图中的所有错误：

@if (count($errors) > 0)
    <div class="alert alert-danger">
        <strong>Whoops!</strong> There were some problems with your input.<br><br>
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif

但是我想显示个别错误并在表单组中出现如下错误时向表单组添加一个类：

<div class="form-group <?php echo ($messages->has('first_name')) ? 'has-error' : ''; ?>">
    <label for="first_name" class="control-label col-xs-12 col-sm-3 col-md-4 col-lg-4">First Name</label>
    <div class="col-xs-12 col-sm-6 col-md-8 col-lg-8">
        {!! Form::text('first_name', '', array('class' => 'form-control')) !!}
    </div>
</div>

$ messages-＆gt; has（）方法似乎无法正常工作，但我收到以下错误：

Whoops, looks like something went wrong.

2/2
ErrorException in 6351f2a902813f4fd7aa70b7ef38354d line 34:
Undefined variable: messages (View: C:\xampp\htdocs\fourteen-ten\resources\views\admin\contacts\add.blade.php)

有谁知道我收到此错误的原因？

Answer 1

单独显示错误。你应该把它放在每个元素下

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

注意：

你应该在你的css中创建一个名为error的类。

仅当出现任何错误时才会显示错误

Answer 2

好的，谢谢Sulthan，我能够弄明白。而不是：

$messages->has('field_name')

我应该使用：

$errors->has('field_name')

Answer 3

我觉得这是一个简单的程序：

$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"]);
    }
}

Laravel 5请求 - 如何显示单个验证错误

3 个答案: