Question

我的代码中有这样的内容：

@foreach($cars as $key => $car)
{!!Form::open(['action' => 'CarController@Update'])!!}
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
    <div class="form-group">
        <label class="col-lg-6  control-label">Color</label>
        <div class="col-lg-6">
            {!!Form::text('carColor', $car->color, ['class' => 'form-control input-sm'])!!}
        </div>                        
    </div>                        
</div>   
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
    <div class="form-group">
        <label class="col-lg-6  control-label">Price</label>
        <div class="col-lg-6">
            {!!Form::text('carPrice', $car->price, ['class' => 'form-control input-sm'])!!}
        </div>                        
    </div>                        
</div>
{!!Form::close()}
@endforeach

此观点的目的是更新汽车的价格和颜色。但是有很多，所以每辆车有一种形式。如果输入未通过验证，我怎么知道哪些表单输入无效，因为输入的名称相同。

Answer 1

问题在于laravel有一个旧输入会话但不是表格。但是使用javascript或jquery这个任务很容易。

@foreach($cars as $key => $car)
{!!Form::open(['action' => 'CarController@Update'])!!}
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
    <div class="form-group">
        <label class="col-lg-6  control-label">Color</label>
        <div class="col-lg-6">
            {!!Form::text('carColor', $car->color, ['class' => 'form-control input-sm', 'id' => 'carColor'])!!}

        </div>                        
    </div>                        
</div>   
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="form-group">
    <label class="col-lg-6  control-label">Price</label>
    <div class="col-lg-6">
        {!!Form::text('carPrice', $car->price, ['class' => 'form-control input-sm', 'id'=> 'carPrice'])!!}
        </div>                        
   </div>                        
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
    <div class="form-group">
        <input type="hidden" id="carID" value="{{ $car->id }}">

        <button class="btn btn-warning" id="editDetails">edit</button>
    </div>
</div>
{!!Form::close()}
@endforeach

并在您的javascript中

$('#editDetails').on('click', function () {
    carColor = $(this).parent().parent().parent().find('#carColor').val();
    carPrice = $(this).parent().parent().parent().find('#carPrice').val();
    car_id = $(this).parent().parent().parent().find('#carID').val();
    _token=  $('meta[name="csrf-token"]').attr('content'); //add meta header in top head section see below

    //here you can also check validation like check for empty fields 

    $.ajax({
        url : 'url/to/edit/route',
        method : 'patch', //this could be post. whatever you defined as your route
        data : {
            carColor : carColor,
            carPrice : carPrice,
            carId : carId,
            _token : _token
        },
        success : function() {
            alert('successful edit!');
            //you can do something like
            $(this).parent().parent().append('<p>success</p>');
            //to show which line was successful
        },
        error : function(xhr,status,err) {
            //you can do something like append an alert div to the parent form element of the erroneous input row.
            $(this).parent().parent().append('<p>error editing here</p>');

        }
    });
});

将此元标记与csrf会话一起添加为主版块的head标记中的内容

<meta name="csrf-token" content="{!! csrf_token() !!}">

希望这能让您了解如何解决问题。

修改由于OP需要在没有javascript的情况下处理这个问题

首先在foreach循环形式中添加密钥的隐藏输入，以传递哪一行抛出错误

<input type="hidden" id="key" value="{{ $key }}">

然后在您的控制器中，您可以将其添加到错误处理块

Session::flash('error', Input::get('key')); //use flash which behaves the same as as old input session //a one time use session

并在循环内部添加if语句检查错误

@if(Session::has('error') || Session::get('error') == $key) <div class="alert-box success"> <h2>error here</h2> </div> @endif

希望这有帮助

具有相同输入名称的多个表单检查哪个表单输入有错误Laravel

1 个答案: