Question

希望你们都做得很好。我使用Laravel 5.3和LaravelCollective包进行表单模型绑定。我有subjects array我要验证，然后如果输入数据中没有错误则存储在数据库中。

以下代码段显示了表单，其他视图，验证规则和控制器代码的部分视图。

UserProfile.blade.php

                    <!-- Panel that Adds the Subject - START -->
                    <div class="col-md-12">
                        <div class="panel panel-default" id="add_Subject_panel">
                            <div class="panel-heading">Add Subject(s):</div>
                            <div class="panel-body">
                                {!! Form::open( array('method'=>'post', 'url'=>route('user.store.subject', 1)) ) !!}
                                    @include('user.partials.subjects', ['buttonText'=>'Add Subject(s)'])
                                {!! Form::close() !!}
                            </div>
                        </div>
                    </div>
                    <!-- Panel that Adds the Subject - END -->

subjects.blade.php

@if (count($errors) > 0)
    <div class="alert alert-danger">
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif

    <div class="subject-list">
        <div class="input-group subject-input">
            <input type="text" name="name[]" class="form-control" value="" placeholder="Subject" />
            <span class="input-group-btn">
                <span class="btn btn-default">Primary subject</span>
            </span>
        </div>
    </div>

    <div class="text-right">
        <br />
        <button type="button" class="btn btn-success btn-sm btn-add-subject"><span class="glyphicon glyphicon-plus"></span> Add Subject</button>
    </div>

    <div class="form-group">
        <div class="col-md-6 col-md-offset-4 text-right">
            <button type="submit" class="btn btn-primary">
                {{ $buttonText }}&nbsp; <i class="fa fa-btn fa-subject"></i> 
            </button>
        </div>
    </div>


@push('scripts')

{{-- <script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script> --}}
<script src="{{ asset('scripts/jquery-2.2.4.min.js') }}" type="text/javascript" charset="utf-8" async defer></script>

<script>

        $(function()
        {

            $(document.body).on('click', '.btn-remove-subject', function(){
                $(this).closest('.subject-input').remove();
            });

            $('.btn-add-subject').click(function()
            {
                var index = $('.subject-input').length + 1;

                $('.subject-list').append(''+
                    '<div class="input-group subject-input" style="margin-top:20px; margin-bottom:20px;">'+
                        '<input type="text" name="name['+index+']" class="form-control" value="" placeholder="Subject" />'+
                        '<span class="input-group-btn">'+
                            '<button class="btn btn-danger btn-remove-subject" type="button"><span class="glyphicon glyphicon-remove"></span></button>'+
                        '</span>'+
                    '</div>'
                ); 
            });
        });


</script>

@endpush

我想使用自定义创建的表单请求验证作为数组传递给控制器的所有主题。以下是该表单请求的代码

SubjectRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class SubjectRequest extends FormRequest
{
    /**
     * 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()
    {
        // dd("Rules Area");
        foreach($this->request->get('name') as $key => $val)
        {

            $rules['name.'.$key] = 'required|min:5|max:50';
        }
        // dd($rules);
        return $rules;
    }

    public function messages()
    {
        // dd('Message Area. . .');
        $messages = [];
        foreach($this->request->get('name') as $key => $val)
        {
            $messages['name.'.$key.'.required'] = ' Subject Name '.$key.'" is required.';
            $messages['name.'.$key.'.min'] = ' Subject Name '.$key.'" must be atleast :min characters long.';
            $messages['name.'.$key.'.max'] = ' Subject Name '.$key.'" must be less than :max characters.';
        }
        // dd($messages);
        return $messages;
    }
}

以下是我用于将输入的数组数据存储到数据库的控制器方法的代码。

    public function storeSubjects(SubjectRequest $request)
    {
        $data = $request->all();

        // save logic
        dd($data);
    }

问题： 当输入数据中存在某些验证错误时，我的表单不会填充。获得验证错误后，我的输入字段为空。

Answer 1

<强>问题

在subject.blade.php中，您的代码看起来像

 <input type="text" name="name[]" class="form-control" value="" placeholder="Subject" />

您的字段未填充，因为您已将value属性留空。

<强>解决方案：

传递旧值以解决问题。

    <input type="text" name="name[]" class="form-control" value="{{old('name[]')}}" placeholder="Subject" />

Answer 2

使用表单模型绑定

https://laravelcollective.com/docs/5.3/html#form-model-binding

{{ Form::model($user, [....]) }}
   {{ Form::text('firstname', null, [...]) }}
{{ Form::close() }}

当输入数据中存在某些验证错误时，我的表单不会填充。 Laravel Collective

2 个答案: