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<?php |
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namespace Kunstmaan\FormBundle\Helper; |
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use ArrayObject; |
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use Doctrine\ORM\EntityManager; |
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use Kunstmaan\FormBundle\Entity\FormAdaptorInterface; |
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use Kunstmaan\FormBundle\Entity\FormSubmission; |
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use Kunstmaan\FormBundle\Entity\FormSubmissionField; |
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use Kunstmaan\FormBundle\Event\FormEvents; |
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use Kunstmaan\FormBundle\Event\SubmissionEvent; |
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use Kunstmaan\NodeBundle\Helper\RenderContext; |
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use Symfony\Component\DependencyInjection\ContainerInterface; |
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use Symfony\Component\EventDispatcher\LegacyEventDispatcherProxy; |
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use Symfony\Component\Form\Extension\Core\Type\FormType; |
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use Symfony\Component\Form\FormBuilderInterface; |
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use Symfony\Component\HttpFoundation\RedirectResponse; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\Routing\RouterInterface; |
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/** |
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* The form handler handles everything from creating the form to handling the submitted form |
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*/ |
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class FormHandler implements FormHandlerInterface |
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{ |
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/** |
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* @var ContainerInterface |
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*/ |
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private $container; |
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/** |
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* @param ContainerInterface $container |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* @param FormPageInterface $page The form page |
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* @param Request $request The request |
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* @param RenderContext $context The render context |
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* |
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* @return RedirectResponse|void|null |
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*/ |
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public function handleForm(FormPageInterface $page, Request $request, RenderContext $context) |
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{ |
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/* @var EntityManager $em */ |
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$em = $this->container->get('doctrine.orm.entity_manager'); |
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/* @var FormBuilderInterface $formBuilder */ |
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$formBuilder = $this->container->get('form.factory')->createBuilder(FormType::class); |
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/* @var RouterInterface $router */ |
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$router = $this->container->get('router'); |
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/* @var ArrayObject $fields */ |
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$fields = new ArrayObject(); |
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$pageParts = $em->getRepository('KunstmaanPagePartBundle:PagePartRef')->getPageParts($page, $page->getFormElementsContext()); |
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foreach ($pageParts as $sequence => $pagePart) { |
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if ($pagePart instanceof FormAdaptorInterface) { |
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$pagePart->adaptForm($formBuilder, $fields, $sequence); |
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} |
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} |
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$form = $formBuilder->getForm(); |
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if ($request->getMethod() == 'POST') { |
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$form->handleRequest($request); |
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if ($form->isSubmitted() && $form->isValid()) { |
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$formSubmission = new FormSubmission(); |
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$formSubmission->setIpAddress($request->getClientIp()); |
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$formSubmission->setNode($em->getRepository('KunstmaanNodeBundle:Node')->getNodeFor($page)); |
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$formSubmission->setLang($request->getLocale()); |
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$em->persist($formSubmission); |
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/* @var FormSubmissionField $field */ |
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foreach ($fields as $field) { |
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$field->setSubmission($formSubmission); |
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$field->onValidPost($form, $formBuilder, $request, $this->container); |
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$em->persist($field); |
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} |
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$em->flush(); |
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$em->refresh($formSubmission); |
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$event = new SubmissionEvent($formSubmission, $page); |
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$this->dispatch($event, FormEvents::ADD_SUBMISSION); |
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return new RedirectResponse($page->generateThankYouUrl($router, $context)); |
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} |
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} |
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$context['frontendform'] = $form->createView(); |
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$context['frontendformobject'] = $form; |
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return null; |
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} |
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/** |
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* @param object $event |
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* @param string $eventName |
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* |
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* @return object |
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*/ |
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View Code Duplication |
private function dispatch($event, string $eventName) |
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{ |
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$eventDispatcher = $this->container->get('event_dispatcher'); |
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if (class_exists(LegacyEventDispatcherProxy::class)) { |
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$eventDispatcher = LegacyEventDispatcherProxy::decorate($eventDispatcher); |
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return $eventDispatcher->dispatch($event, $eventName); |
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} |
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return $eventDispatcher->dispatch($eventName, $event); |
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} |
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} |
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: