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<?php |
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declare(strict_types=1); |
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/* |
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* (c) Christian Gripp <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Core23\Form\Handler; |
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use Core23\Form\Handler\Exception\InvalidCallbackException; |
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use Symfony\Component\Form\FormInterface; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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abstract class AbstractFormHandler implements FormHandlerInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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final public function handle(FormInterface $form, Request $request, callable $callback): ?Response |
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{ |
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if ($response = $this->preProcess($form, $request)) { |
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return $response; |
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} |
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$form->handleRequest($request); |
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if (!$form->isSubmitted() || !$form->isValid()) { |
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return null; |
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} |
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if ($response = $this->validate($form, $request)) { |
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return $response; |
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} |
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if (!$this->process($form, $request)) { |
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return null; |
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} |
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if (!\is_callable($callback)) { |
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throw new InvalidCallbackException('No valid callable.'); |
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} |
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$response = $callback(); |
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if (!$response instanceof Response) { |
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throw new InvalidCallbackException('Invalid callback response.'); |
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} |
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if ($response = $this->postProcess($form, $request, $response)) { |
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return $response; |
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} |
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return null; |
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} |
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/** |
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* Executes before form validating and processing is started. |
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* |
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* @param FormInterface $form |
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* @param Request $request |
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* |
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* @return Response|null |
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*/ |
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protected function preProcess(FormInterface $form, Request $request): ?Response |
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{ |
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return null; |
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} |
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/** |
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* Executes after preprocessing and before form processing is started. |
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* |
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* @param FormInterface $form |
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* @param Request $request |
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* |
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* @return Response|null |
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*/ |
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protected function validate(FormInterface $form, Request $request): ?Response |
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{ |
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return null; |
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} |
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/** |
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* Executes the form processing. |
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* |
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* @param FormInterface $form |
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* @param Request $request |
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* |
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* @return bool |
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*/ |
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abstract protected function process(FormInterface $form, Request $request): bool; |
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/** |
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* Executes after form processing is finished and filters response. |
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* |
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* @param FormInterface $form |
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* @param Request $request |
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* @param Response $response |
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* |
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* @return Response|null |
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*/ |
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protected function postProcess(FormInterface $form, Request $request, Response $response): ?Response |
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{ |
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return $response; |
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} |
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} |
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core23 /
form-extensions
Loading history...
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.