Shopware: Store custom field for customer - shopware

Question

I added this custom field to my customer and to the register form in storefront/component/account/register.html.twig:
<input type="checkbox" class="custom-control-input" id="alumni" name="custom_kw_dau" value="1">
The field is type checkbox. It works fine in the backend but it is not filled during customer registration.

Answer 1

You have to manually store it. Subscribe to event and add the field to customFields in the output like this:
public static function getSubscribedEvents(): array
{
return [
CustomerEvents::MAPPING_REGISTER_CUSTOMER => 'addCustomField'
];
}
public function addCustomField(DataMappingEvent $event): bool
{
$inputData = $event->getInput();
$outputData = $event->getOutput();
$custom_field = (bool)$inputData->get('custom_kw_dau', false);
$outputData['customFields'] = array('custom_kw_dau' => $custom_field);
$event->setOutput($outputData);
return true;
}

Answer 2

Yeah you need to subscribe to the event - but I have done it like this instead of the above event, and it works fine as well.
public static function getSubscribedEvents(): array
{
return [
CustomerRegisterEvent::class => 'onRegister',
GuestCustomerRegisterEvent::class => 'onRegister'
];
}
public function onRegister(CustomerRegisterEvent $event): void
{
$request = $this->requestStack->getCurrentRequest();
if ($request) {
$params = $request->request->all();
$customer = $event->getCustomer();
$data = [
'id' => $customer->getId(),
'customFields' => [
'your_field' => $params['your_field']
]
];
$this->customerRepository->update([$data], $event->getContext());
}
}
But I think the answer above might be more suitable as it does not require any additional services.