Laravel 5.x.从表单验证中抛出手动错误

Question

是否有任何方法在laravel中引发手动表单验证错误？假设有一个函数可以检查信用卡号码，如果失败，我想设置一个错误并将用户重定向回表单。我正在寻找类似的东西。

private function validateCreditCard() {...} 
if (!validateCreditCard()) { 
    # Throw a form validation error here. 
} 

Answer 1

在Laravel中实际上有许多验证方法。

1. 来自控制器

Validator::make($request->all(), [ 
 
     'ccv' => 'required|numeric|max:3', 
 
     'card_number' => 'required', 
 
    'expiry_date' => 'required', 
 
])->validate();

指定要在代码中显式地重定向请求

$validator = Validator::make($request->all(), [ 
 
      'ccv' => 'required|numeric', 
 
      'card_number' => 'required', 
 
      'expiry_date' => 'required', 
 

 
      
 
     ]); 
 

 
     if ($validator->fails()) { 
 
      return redirect('pay/with/creditcard') 
 
         ->withErrors($validator) 
 
         ->withInput(); 
 
     }

做的第一验证例如接连验证（检查卡debitable）

$validator = Validator::make(
 
       'ccv' => 'required|numeric', 
 
       'card_number' => 'required', 
 
       'expiry_date' => 'required',); //your normal validation here. e.g ccv, required fields etc. 
 
    
 
    $validator->after(function ($validator) { 
 
     if (!$this->validateCreditCard()) { //do another validation e.g check if card is debitable 
 
     
 
      $validator->errors()->add('credit_card', 'Something is wrong with this credit card!'); 
 
     } 
 
    });

，你可以重新导向付款表单。假设你的路线是'pay/with/creditcard'

if ($validator->fails()) { 
      return redirect('pay/with/creditcard') 
         ->withErrors($validator) 
         ->withInput(); 
     }