Laravel表单请求在重定向到索引时变为空

Question

我正在使用http://kristijanhusak.github.io/laravel-form-builder/overview/quick-start.html中的表单生成器。我有一个表格的页面。此页面是index（）。当用户单击表单中的“提交”按钮时，页面将被重定向到确认页面。在确认页面中，我打印表单请求以检查是否使用（1）$ form-> getRequest（）-> all（），（2）$ form-> getRequest（）-> old（）， （3）$ form-> getData（）。第三个打印来自用户输入的所有请求。确认页面上还有一个取消和确认按钮。单击取消按钮后，它会重定向回index（），但是问题是当它重定向回index（）时，所有请求都变为null，这会将所有用户输入从index（）中删除。有解决方法吗？

代码：

public function index()
{
    if (!$this->hasPermit(self::PERMIT_READ, 'h_1_203')) {
        return $this->permitError();
    }

    // $this->subTitle = '一覧';
    $this->setupContentHeader();
    $this->pageInfoUpdate();

    $wares = $this->listSql();

    $this->paging($wares);

    $wares = $wares->get()->toArray();

    $form = $this->form(WarehouseForm::class, [
        'method' => 'POST',
        'url' => route('head.system.h_1_203@confirmInsert'),
        'class' => 'pjax-container',
    ]);

    var_dump($form->getRequest()->all());
    var_dump($form->getRequest()->old());
    var_dump($form->getData());

    // Disable form if permission is readonly or below
    if ($this->permit < self::PERMIT_FULL) {
        $form->disableFields();
    }

    return view('head.system.h_1_203', compact('form'), [
        'wares' => $wares,
    ]);
}

public function confirmInsert(Request $request)
{
    if (!$this->hasPermit(self::PERMIT_READ, 'h_1_203')) {
        return $this->permitError();
    }

    $this->formInputConvert();

    // $this->subTitle = '一覧';
    $this->setupContentHeader();
    $this->pageInfoUpdate();

    $wares = $this->listSql();

    $this->paging($wares);

    $wares = $wares->get()->toArray();

    $form = $this->form(WarehouseForm::class, [
        'method' => 'POST',
        'url' => route('head.system.h_1_203@insert'),
        'class' => 'pjax-container',
    ]);

    var_dump($form->getRequest()->all());
    var_dump($form->getRequest()->old());
    var_dump($form->getData());

    $form->modify('count_flg', 'choice', [
        'selected' => Request::input('count_flg'),
    ]);

    $form->disableFields();

    $form->redirectIfNotValid();

    // Disable form if permission is readonly or below
    if ($this->permit < self::PERMIT_FULL) {
        $form->disableFields();
    }

    return view('head.system.h_1_203', compact('form'), [
        'wares' => $wares,
        'confirm' => true,
    ]);
}

class WarehouseForm extends Form
{
        public function buildForm()
        {
            $defVal = $this->getRequest()->all();

            if (!array_has($defVal, 'ware_id')) {
                $defVal = $this->getRequest()->old();
            }

            if (!array_has($defVal, 'ware_id')) {
                $defVal = $this->getData();

                if (array_has($defVal, 'ware_id')) {

                    $ware = Ware::find($defVal['ware_id']);

                    $defVal['ware_id'] = $ware->ware_id;
                    $defVal['ware_cd'] = $ware->ware_cd;
                    $defVal['ware_name'] = $ware->ware_name;
                    $defVal['count_flg'] = $ware->count_flg;
                    $defVal['nondisp_flg'] = $ware->nondisp_flg;
                    $defVal['note'] = $ware->note;

                }
            }

            $this
                ->add('ware_id', 'hidden', [
                    'value' => @$defVal['ware_id'] ?: null,
                ])
                ->add('ware_cd', 'text', [
                    'label' => '倉庫コード',
                    'rules' => 'required|regex:/^[0-9０－９]*$/',
                    'attr' => [
                        'size' => 3,
                        'maxLength' => 3,
                    ],
                    'value' => @$defVal['ware_cd'] ?: null,
                    'error_messages' => [
                        'ware_cd.regex' => '倉庫コードは数字を入力してください。']
                ])
                ->add('ware_name', 'text', [
                    'label' => '倉庫名',
                    'rules' => 'required',
                    'attr' => [
                        'size' => 22,
                        'maxLength' => 10,
                    ],
                    'value' => @$defVal['ware_name'] ?: null,
                ])
                ->add('count_flg', 'choice2', [
                    'label' => '発注点カウント',
                    'choices' => collect(Ware::$CountFlgData)->pluck('name', 'id')->toArray(),
                    'expanded' => true,
                    'multiple' => false,
                    'selected' => !isset($defVal['count_flg']) ? '1' : @$defVal['count_flg'] ? '1' : '2',
                ])
                ->add('nondisp_flg', 'checkbox',[
                    'label' => '非表示',
                    'checked' => @$defVal['nondisp_flg'] == null ? false : @$defVal['nondisp_flg']
                ])
                ->add('note', 'text', [
                    'label' => '備考',
                    'attr' => [
                        'size' => 34,
                        'maxLength' => 30,
                    ],
                    'value' => @$defVal['note'] ?: null,
                ])
                ->add('submit', 'submit', [
                    'label' => '登　録',
                    'attr' => ['class' => 'btn btn-primary submit'],
                ])
                ->add('clear', 'button', [
                    'label' => 'クリア',
                    'attr' => ['class' => 'btn btn-warning pull-left', 'onclick' => 'transition("'.route('head.system.h_1_203').'")'],
                ]);
        }
    }