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.'
];
}
}
当验证失败时，我可以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>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
但我想显示单个错误，并在表单组中添加一个类，如果该字段有这样的错误：
<div class="form-group <?php echo ($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->has（）方法似乎不起作用，尽管我得到了以下错误：
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)
有人知道我为什么会犯这个错误吗？
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>
注：
为此，您应该在css中创建一个名为error的类。
只有当任何occurs
好吧，多亏了Sulthan，我才弄明白。代替：
$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"]);
}
}