在 Laravel 中显示输入数组的验证错误
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Displaying validation errors from an input array in Laravel
提问by Josh Mountain
I am submitting an array of inputs to my controller like so:
我正在向我的控制器提交输入数组，如下所示：
<input id="box-1-nickname" name="box-nickname[]" class="form-control" type="text" placeholder="Required">
<input id="box-2-nickname" name="box-nickname[]" class="form-control" type="text" placeholder="Required">
I am doing some validation like this:
我正在做一些这样的验证：
$validator = Validator::make(Input::all(), array(
'supplies-count' => 'required|in:0,1,2,3,4',
));
$arrayValidator = Validator::make(Input::all(), []);
$arrayValidator->each('box-nickname', ['required|min:1|max:60']);
if( $validator->fails() || $arrayValidator->fails() ) {
return Redirect::route('route-2')
->withErrors($arrayValidator)
->withInput();
}
The problem is when I try to check the errors like this it doesn't work:
问题是当我尝试检查这样的错误时它不起作用：
if( $errors->has('box-1-nickname') ) { echo ' has-error'; }
回答by WebSpanner
You've probably long found a solution, but for anyone else who stumbles across this:
您可能早就找到了解决方案，但对于其他遇到此问题的人：
The validator uses array dot notation of the field array keys. For example box-nickname[0]becomes box-nickname.0
验证器使用字段数组键的数组点表示法。例如box-nickname[0]变成box-nickname.0
Therefore if( $messages->has('box-nickname.0') ) { echo ' has-error'; }should give you your desired result. However, you will need to dynamically generate the array key since as you've said, you won't know how many box-nicknames are being applied. I use this in my form view:
因此if( $messages->has('box-nickname.0') ) { echo ' has-error'; }应该给你你想要的结果。但是，您需要动态生成数组键，因为正如您所说，您不知道应用了多少个框昵称。我在表单视图中使用它：
@if(!is_null(Input::old('box-nickname')))
@foreach(Input::old('box-nickname') as $n => $box-nickname)
@include('box-nickname-create-form-partial')
@endforeach
@endif
Then create a partial view called "box-nickname-create-form-partial.blade.php" or whatever you want to call it with the form field, which might look something like this:
然后创建一个名为“box-nickname-create-form-partial.blade.php”或任何你想用表单字段调用它的部分视图，它可能看起来像这样：
<div class="form-group {!! $errors->has('box-nickname.'.$n) ? ' has-error' : '' !!}">
<input name="box-nickname[{{$n}}]" class="form-control" type="text" placeholder="Required">
</div>
I hope that's helpful.
我希望这会有所帮助。
回答by Mike
Displaying input array errors in the view (L5.8 onwards)
在视图中显示输入数组错误（L5.8 以上）
To get the first validation error for an input array:
要获取输入数组的第一个验证错误：
{{ $errors->first('input_array.*') }}
To check if there is an error within an input array:
要检查输入数组中是否存在错误：
@if($errors->has('input_array.*'))
<h1>There is an error in your input array</h1>
<ul>
@foreach($errors->get('input_array.*') as $errors)
@foreach($errors as $error)
<li>{{ $error }}</li>
@endforeach
@endforeach
</ul>
@endif
Other examples:
其他例子：
@error('input_array.*')
<div class="alert alert-danger">{{ $message }}</div>
@enderror
From 5.8^ documentation
来自 5.8^ 文档
If you are validating an array form field, you may retrieve all of the messages for each of the array elements using the * character:
如果您正在验证数组表单字段，您可以使用 * 字符检索每个数组元素的所有消息：
foreach ($errors->get('attachments.*') as $message) {
//
}
Hope it helps!
希望能帮助到你！
回答by mopo922
The errors are collected by nameproperty, not id, and Laravel's default MessageBag variable is $messages, not $errors:
错误是由name属性而不是收集的id，而 Laravel 的默认 MessageBag 变量是$messages，而不是$errors：
if( $messages->has('box-nickname') ) { echo ' has-error'; }
http://laravel.com/docs/4.2/validation#working-with-error-messages
http://laravel.com/docs/4.2/validation#working-with-error-messages
回答by David Nguyen
$errorsis correct, but you should be checking for box-nickname. As you can see you will run into the issue of not being able to identify what box is what because of the generic name. I think the easiest way to to give each input a unique name (eg. box-1, box-2)and do a for loop on the server side to retrieve inputs that start with box-.
$errors是正确的，但您应该检查box-nickname. 如您所见，您会遇到由于通用名称而无法识别哪个框是什么的问题。我认为最简单的方法是给每个输入一个唯一的名称（例如box-1，box-2）并在服务器端执行 for 循环来检索以box-.
