Question

我有以下控制器，它将数据发送到Laravel Blade视图：

控制器：

public function create()
{
    $schools = School::all()->sortBy('school_type');
    return view('invoices.create')->with([
        'schools' => $schools,
        'dayTypes' => $dayTypes,
    ]);
}

在Laravel刀片视图中有一个表单：

<form method="GET" action="{{ route('invoices.choose-periods') }}">
    <div class="form-group {{ $errors->has('school') ? 'has-error' : '' }}">
        <label>School</label>
        <select id="school" class="form-control" name="school[]" multiple size="{{ $schools->count() }}" required>
            @foreach ($schools as $school)
                <option value="{{ $school->id }}">{{ $school->name }}</option>
            @endforeach
        </select>
        @if ($errors->has('school'))
            <span class="help-block">
                <strong>{{ $errors->first('school') }}</strong>
            </span>
        @endif
    </div>
        <button type="submit" class="btn btn-success btn-sm pull-right">Submit</button>
</form>

从HTML中可以看出，表单是一种多选形式，结果数据存储在school[]数组中。

在提交表单时，我会在request('school')上进行测试并转储并查看对于我选择的每个选项，该值似乎已记录两次。例如，只选择一个选项会给我：

array:2 [▼
  0 => "15"
  1 => "15"
]

有什么想法吗？谢谢！

Answer 1

我只研究过laravel 5.7。试试这个它对我有用。由于您要传递2个对象

return view('invoices.create')->with([
    'schools' => $schools,
    'dayTypes' => $dayTypes,
]);

很明显，您会遇到2个错误。

在您的控制器中更改此

public function create()
{
$schools = School::all()->sortBy('school_type');
return view('invoices.create')->with([
    'schools' => $schools,
    'dayTypes' => $dayTypes,
]);
}

对此

public function create(){
$schools = School::all()->sortBy('school_type');
return view('invoices.create', ['schools' => $schools]),
]);
 }

Laravel Form有多个选择

1 个答案: