php Laravel 验证：检查验证器失败的原因
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Laravel Validation: check why validator failed
提问by dcolumbus
If there a way to check whether or not the validator failed specifically because of the uniquerule?
如果有办法检查验证器是否因为unique规则而失败？
$rules = array(
'email_address' => 'required|email|unique:users,email',
'postal_code' => 'required|alpha_num',
);
$messages = array(
'required' => 'The :attribute field is required',
'email' => 'The :attribute field is required',
'alpha_num' => 'The :attribute field must only be letters and numbers (no spaces)'
);
$validator = Validator::make(Input::all(), $rules, $messages);
if ($validator->fails()) {
In laymans terms, I basically want to know: "did the validation fail because the email_address was not unique?"
用外行的话来说，我基本上想知道：“验证失败是不是因为 email_address 不是唯一的？”
回答by Brian Dillingham
Check for a specific rule within the returned array of failed rules
检查返回的失败规则数组中的特定规则
if ($validator->fails()) {
$failedRules = $validator->failed();
if(isset($failedRules['email_address']['Unique'])) {
...
回答by Lynx
This will display an error and tell you what failed:
这将显示一个错误并告诉您失败的原因：
Controller
控制器
if($validation->fails()){
return Redirect::back()->withErrors($validation)->withInput();
}
foreach($errors->all() as $error) {
echo $error;
}
And in your blade template add this:
在您的刀片模板中添加以下内容：
@foreach($errors->all() as $error)
<div>
{{$error}}
</div>
@endforeach
And that will return a message with whatever the error is. Email doesn't match. Field is required. Blah blah
无论错误是什么，这都会返回一条消息。电子邮件不匹配。字段是必需的。胡说八道
You can also remove that email array from the $message. The validator will handle all that for you. You only want to use that if you want custom messages.
您还可以从 $message 中删除该电子邮件数组。验证器将为您处理所有这些。如果您想要自定义消息，您只想使用它。
You can also try to var_dump this statement:
你也可以尝试 var_dump 这个语句：
var_dump($validation->errors()); die;
var_dump($validation->errors()); 死;
