我有以下观点：
@extends('layouts.admin')
@section('pagetitle')
Edit Settings
@stop
@section('content')
{!! $message or '' !!}
@if (count($errors) > 0)
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<div class="portlet light bordered">
<div class="portlet-title">
<div class="caption font-red-sunglo">
<i class="fa fa-tag font-red-sunglo"></i>
<span class="caption-subject bold uppercase">Discounts</span>
</div>
</div>
<div class="row">
<div class="col-xs-12">
<form role="form" method="POST" action="{!! URL::to('admin/discounts/update') !!}">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<table class="table table-bordered table-striped table-hover">
<thead>
<tr>
<th width="30%">Minimum Credits</th>
<th width="30%">Maximum Credits</th>
<th width="30%">Discount %</th>
<th width="100"></th>
<th width="100"></th>
</tr>
</thead>
<tbody>
@if(count($discounts)==0)
<tr>
<td>
{!! Form::text('min_credits[]', null, array('class' => 'form-control')) !!}
</td>
<td>
{!! Form::text('max_credits[]', null, array('class' => 'form-control')) !!}
</td>
<td>
<div class="input-group">
{!! Form::text('discount_percent[]', null, array('class' => 'form-control')) !!}
<span class="input-group-addon">%</span>
</div>
</td>
<td><button type="button" class="btn red delete"><i class="fa fa-trash"></i> Delete</td>
<td><button type="button" class="btn green newrow"><i class="fa fa-plus"></i> New Row</button></td>
</tr>
@else
@foreach($discounts as $discount)
<tr>
<td>
{!! Form::text('min_credits[]', $discount->min_credits, array('class' => 'form-control')) !!}
</td>
<td>
{!! Form::text('max_credits[]', $discount->max_credits, array('class' => 'form-control')) !!}
</td>
<td>
<div class="input-group">
{!! Form::text('discount_percent[]', $discount->discount_percent, array('class' => 'form-control')) !!}
<span class="input-group-addon">%</span>
</div>
</td>
<td><button type="button" class="btn red delete"><i class="fa fa-trash"></i> Delete</td>
<td><button type="button" class="btn green newrow"><i class="fa fa-plus"></i> New Row</button></td>
</tr>
@endforeach
@endif
</tbody>
</table>
<div class="row mtop20">
<div class="col-xs-12">
{!! Form::submit('Update', array('class' => 'btn btn-primary')) !!}
</div>
</div>
</form>
</div>
</div>
</div>
@stop
@section('scripts')
<script type="text/javascript">
$(document).ready(function() {
$('.delete').click(function() {
if(confirm("Are you sure you want to delete this row?")){
$(this).closest('tr').remove();
}
});
$('.newrow').click(function() {
html = '<tr>\
<td>\
{!! Form::text('min_credits[]', "", array('class' => 'form-control')) !!}\
</td>\
<td>\
{!! Form::text('max_credits[]', "", array('class' => 'form-control')) !!}\
</td>\
<td>\
<div class="input-group">\
{!! Form::text('discount_percent[]', "", array('class' => 'form-control')) !!}\
<span class="input-group-addon">%</span>\
</div>\
</td>\
<td><button type="button" class="btn red delete"><i class="fa fa-trash"></i> Delete</td>\
<td><button type="button" class="btn green newrow"><i class="fa fa-plus"></i> New Row</button></td>\
</tr>';
$(this).closest('tr').after(html);
});
});
</script>
@stop
以下要求：
<?php namespace App\Http\Requests;
use App\Http\Requests\Request;
use Validator;
use Session;
use Auth;
class DiscountsEditRequest extends Request {
/**
* Determine if the user is authorized to make this request.
*
* @return bool
*/
public function authorize()
{
return true;
}
/**
* Set up the validation rules
*/
public function rules()
{
$rules = [
'min_credits' => 'array',
'max_credits' => 'array',
'discount_percent' => 'array'
];
$row_count = count($this->min_credits);
for($i=0; $i<$row_count; $i++) {
$rules['min_credits.'.$i] = 'required|integer';
$rules['max_credits.'.$i] = 'integer';
$rules['discount_percent.'.$i] = 'required|integer';
}
return $rules;
}
public function messages()
{
$messages = [
'min_credits.array' => 'The minimum credits field must be an array.',
'max_credits.array' => 'The maximum credits field must be an array.',
'discount_percent.array' => 'The discount percent field must be an array.',
'discount_percent.required' => 'The discount field is required.'
];
$row_count = count($this->min_credits);
for($i=0; $i<$row_count; $i++) {
$messages['min_credits.'.$i.'required'] = 'The minimum credits field is required.';
$messages['min_credits.'.$i.'integer'] = 'The minimum credits field must contain an integer.';
$messages['max_credits.'.$i.'integer'] = 'The maximum credits field must contain an integer.';
$messages['discount_percent.'.$i.'required'] = 'The discount field is required.';
$messages['discount_percent.'.$i.'integer'] = 'The discount field must contain an integer.';
}
return $messages;
}
}
以下控制器：
<?php namespace App\Http\Controllers\Admin;
use App\Http\Requests;
use App\Http\Controllers\Controller;
use App\Http\Requests\DiscountsEditRequest;
use Illuminate\Http\Request;
use View;
use Session;
use Input;
use Response;
use Auth;
use App\Discount;
class DiscountsController extends Controller {
public function __construct()
{
$this->data['admin_user'] = Session::get('admin_user');
$this->data['message'] = Session::get('message');
$this->data['admin_user'] = Auth::user();
}
/**
* Display a listing of the resource.
*
* @return Response
*/
public function index()
{
$this->data['discounts'] = Discount::orderBy('min_credits', 'asc')->get();
return View::make('admin/discounts/index', $this->data);
}
/**
* Update the specified resource in storage.
*
* @param int $id
* @return Response
*/
public function update(DiscountsEditRequest $request)
{
Discount::truncate();
$row_count = count($request->min_credits);
for($i=0; $i<$row_count; $i++) {
Discount::create([
'min_credits' => $request->min_credits[$i],
'max_credits' => $request->max_credits[$i],
'discount_percent' => $request->discount_percent[$i]
]);
}
Session::flash('message', '<div class="alert alert-success" role="alert">The settings have been updated.</div>');
return redirect('admin/discounts');
}
}
如果我提交的表单中填写的所有字段都正确填写它可以正常工作，但如果我故意做某些事情以使验证失败，例如将min_credits字段提交为空白，则会收到以下错误：
ErrorException in helpers.php line 455:
htmlentities() expects parameter 1 to be string, array given (View: C:\xampp\htdocs\clipitquick\resources\views\admin\discounts\index.blade.php)
这是完整的堆栈跟踪：
in helpers.php line 455
at CompilerEngine->handleViewException(object(ErrorException), '1') in PhpEngine.php line 43
at PhpEngine->evaluatePath('C:\xampp\htdocs\clipitquick\storage\framework\views/b9d9b3d2ce2ab48a4dd7dd16ca46f5fe', array('__env' => object(Factory), 'app' => object(Application), 'errors' => object(ViewErrorBag), 'admin_user' => object(User), 'message' => null, 'discounts' => object(Collection))) in CompilerEngine.php line 57
at CompilerEngine->get('C:\xampp\htdocs\clipitquick\resources\views/admin/discounts/index.blade.php', array('__env' => object(Factory), 'app' => object(Application), 'errors' => object(ViewErrorBag), 'admin_user' => object(User), 'message' => null, 'discounts' => object(Collection))) in View.php line 136
at View->getContents() in View.php line 104
at View->renderContents() in View.php line 78
at View->render() in Response.php line 44
at Response->setContent(object(View)) in Response.php line 202
at Response->__construct(object(View)) in Router.php line 1188
at Router->prepareResponse(object(Request), object(View)) in Router.php line 692
at Router->Illuminate\Routing\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 141
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in AdminAuth.php line 30
at AdminAuth->handle(object(Request), object(Closure)) in Pipeline.php line 125
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 101
at Pipeline->then(object(Closure)) in Router.php line 693
at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 660
at Router->dispatchToRoute(object(Request)) in Router.php line 618
at Router->dispatch(object(Request)) in Kernel.php line 210
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 141
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in ShareErrorsFromSession.php line 55
at ShareErrorsFromSession->handle(object(Request), object(Closure)) in Pipeline.php line 125
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in StartSession.php line 61
at StartSession->handle(object(Request), object(Closure)) in Pipeline.php line 125
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in AddQueuedCookiesToResponse.php line 36
at AddQueuedCookiesToResponse->handle(object(Request), object(Closure)) in Pipeline.php line 125
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in EncryptCookies.php line 40
at EncryptCookies->handle(object(Request), object(Closure)) in Pipeline.php line 125
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in CheckForMaintenanceMode.php line 42
at CheckForMaintenanceMode->handle(object(Request), object(Closure)) in Pipeline.php line 125
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 101
at Pipeline->then(object(Closure)) in Kernel.php line 111
at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 84
at Kernel->handle(object(Request)) in index.php line 51
答案 0 :(得分：1)
根据您的验证规则，您的所有三个属性都是数组。稍后，您将它们作为Form::text的值传递。让我们检查函数声明：
string text(string $name, string $value = null, array $options = array())
问题与您的异常消息相同 - 您正在尝试将数组传递给$ value参数，该参数仅接受字符串。
看起来你想为每个数组值创建许多字段，所以尝试这样的事情：
@foreach($discount->min_credits as $entry)
<td>
{!! Form::text('min_credits[]', $entry, array('class' => 'form-control')) !!}
</td>
@endforeach
答案 1 :(得分：0)
我必须更改它，以便每个数组值都有一个键设置如下：
@foreach($discounts as $key => $discount)
<tr>
<td>
{!! Form::text('row['.$key.'][min_credits]', $discount->min_credits, array('class' => 'form-control')) !!}
</td>
<td>
{!! Form::text('row['.$key.'][max_credits]', $discount->max_credits, array('class' => 'form-control')) !!}
</td>
<td>
<div class="input-group">
{!! Form::text('row['.$key.'][discount_percent]', $discount->discount_percent, array('class' => 'form-control')) !!}
<span class="input-group-addon">%</span>
</div>
</td>
<td><button type="button" class="btn red delete"><i class="fa fa-trash"></i> Delete</td>
<td><button type="button" class="btn green newrow"><i class="fa fa-plus"></i> New Row</button></td>
</tr>
@endforeach
然后像这样更改验证规则：
public function rules()
{
$rules = [
'min_credits' => 'array',
'max_credits' => 'array',
'discount_percent' => 'array'
];
$row_count = count($this->row);
for($i=0; $i<$row_count; $i++) {
$rules['row.'.$key.'.min_credits'] = 'required|integer';
$rules['row.'.$key.'.max_credits'] = 'integer';
$rules['row.'.$key.'.discount_percent'] = 'required|integer';
}
return $rules;
}