Warning: current() expects parameter 1 to be array, null given - php

Question

When I was verifying the operation with Symfony4, the following error appeared.
I want to get the staff who are logged in.
current() is not found in the code and the cause cannot be identified.
Do you have any ideas?
I changed from ChoiceList to ChoiceLoader, which may have an effect.
Error
Warning: current() expects parameter 1 to be array, null given
at vendor/symfony/form/Extension/Core/DataTransformer/ChoiceToValueTransformer.php:32
at Symfony\Component\Form\Extension\Core\DataTransformer\ChoiceToValueTransformer->transform(object(Staff))
(vendor/symfony/form/Form.php:1111)
at Symfony\Component\Form\Form->normToView(object(Staff))
(vendor/symfony/form/Form.php:350)
at Symfony\Component\Form\Form->setData(object(Staff))
(vendor/symfony/form/Extension/Core/DataMapper/PropertyPathMapper.php:49)
at Symfony\Component\Form\Extension\Core\DataMapper\PropertyPathMapper->mapDataToForms(object(Coordinate), object(RecursiveIteratorIterator))
(vendor/symfony/form/Form.php:383)
at Symfony\Component\Form\Form->setData(object(Coordinate))
(vendor/symfony/form/Form.php:487)
at Symfony\Component\Form\Form->initialize()
(vendor/symfony/form/FormBuilder.php:217)
at Symfony\Component\Form\FormBuilder->getForm()
(vendor/symfony/form/FormFactory.php:30)
at Symfony\Component\Form\FormFactory->create('Ahi\\Sp\\AdminBundle\\Form\\Type\\Article\\CoordinateType', object(Coordinate), array('method' => 'POST', 'action' => '/admin/sp/shop/coordinate/3860', 'login_staff' => object(Staff)))
(vendor/symfony/framework-bundle/Controller/ControllerTrait.php:312)
at Symfony\Bundle\FrameworkBundle\Controller\Controller->createForm('Ahi\\Sp\\AdminBundle\\Form\\Type\\Article\\CoordinateType', object(Coordinate), array('method' => 'POST', 'action' => '/admin/sp/shop/coordinate/3860', 'login_staff' => object(Staff)))
(src/Ahi/Sp/AdminBundle/Controller/BaseArticleController.php:288)
at Ahi\Sp\AdminBundle\Controller\BaseArticleController->editAndUpdate(object(Request), 'coordinate', '3860')
(src/Ahi/Sp/AdminBundle/Controller/Sp/Shop/ArticleController.php:113)
at Ahi\Sp\AdminBundle\Controller\Sp\Shop\ArticleController->editAction(object(Request), 'coordinate', '3860')
(vendor/symfony/http-kernel/HttpKernel.php:149)
ArticleController.php
protected function editAndUpdate(Request $request, $articleType, $id)
{
if ($articleType == 'coordinate'){
$form = $this->createForm(CoordinateType::class, $article, array(
"method" => "POST",
"action" => $this->generateUrl($this->updateRoute, array("articleType" => $articleType, "id" => $id)),
//Error part
"login_staff" => $this->getStaff(),
));
CoordinateType.php
public function buildForm(FormBuilderInterface $builder, array $options)
{
$wearerChoiceList = new StaffChoiceLoader($this->staffService, $options['login_staff']);
$builder->add("wearer", EntityType::class, array(
"required" => false,
"class" => "AhiSpCommonBundle:Staff",
"choice_loader" => $wearerChoiceList,
));
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setRequired(array(
"login_staff",
));
}
StaffChoiceLoader.php
class StaffChoiceLoader implements ChoiceLoaderInterface
{
public function __construct($staffService, $loginStaff)
{
$this->staffService = $staffService;
$this->loginStaff = $loginStaff;
}
public function setCurrentStaff($currentStaff)
{
$this->currentStaff = $currentStaff;
}
public function loadChoiceList($value = null)
{
// Get the same shop staff as the login staff
$staffs = $this->staffService->getStaffByShop($this->loginStaff->getShop());
// If the current staff is not included in the acquired staff (due to transfer etc.), add it to the end
if ($this->currentStaff && !array_search($this->currentStaff, $staffs)) {
$staffs[] = $this->currentStaff;
}
return new ChoiceList($staffs, $staffs);
}
ArticleType.php
$staff = $options['login_staff'];
if ($staff->getShop() && $staff->getShop()->getApprovalFlg()) {
// For shops that use the approval function
if ($staff->isManage()) {
// Shop administrator (save draft, wait for approval, post immediately)
$builder->add("draft", SubmitType::class);
$builder->add("approvalRequest", SubmitType::class);
$builder->add("publish", SubmitType::class);
} else {
// General staff (save draft, waiting for approval)
$builder->add("draft", SubmitType::class);
$builder->add("approvalRequest", SubmitType::class);
}
} else {
// For shops that do not use the headquarters management screen or approval function (save draft, post)
$builder->add("draft", SubmitType::class);
$builder->add("publish", SubmitType::class);
}

Answer 1

I solved the problem by the following method.
/**
*
* #Method("GET")
* #Route("/initialSetting")
*
* #Template("#AhiSpAdminBundle/Security/initialSetting.html.twig")
*/
public function initialSettingAction(Request $request)
{
return $this->initialSettingAndUpdateAction($request);
}
/**
*
* #Method("PUT")
* #Route("/initialSetting")
*
* #Template("#AhiSpAdminBundle/Security/initialSetting.html.twig")
*/
public function updateAction(Request $request)
{
return $this->initialSettingAndUpdateAction($request);
}
public function initialSettingAndUpdateAction(Request $request)
{
$key = $request->query->get("key");
$staff = $this->get("admin.staffService")->getStaffByUrlKey($key);
if (!$staff || $staff->getPassword()) {
throw new HttpException(
400,
The specified stuff prowl initialization URL does not exist or has expired.
"\n".
"Ask the administrator to reissue the URL."
);
}
$form = $this->createForm(InitialSettingType::class, $staff, array(
"method" => "PUT",
"action" => $this->generateUrl("ahi_sp_admin_security_update", array("key" => $key)),
));
if ($request->isMethod('PUT')) {
if ($form->handleRequest($request)->isSubmitted() && $form->handleRequest($request)->isValid()) {
$this->get("admin.staffService")->clearUrlKey($staff);
$this->get("admin.staffService")->save($staff);
$this->get('session')->getFlashBag()->add('success', 'Staff profile Initial settings have been completed.');
$this->autoLogin($staff);
return $this->redirect($this->generateUrl('ahi_sp_admin_default_index'));
} else {
$this->get('session')->getFlashBag()->add('error', 'Staff profile Initial settings could not be completed. Please check the input contents.');
}
}
return array(
'form' => $form->createView(),
);
}