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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Form\Extension\Core\DataMapper; use Symfony\Component\Form\DataAccessorInterface; use Symfony\Component\Form\DataMapperInterface; use Symfony\Component\Form\Exception\UnexpectedTypeException; use Symfony\Component\Form\Extension\Core\DataAccessor\CallbackAccessor; use Symfony\Component\Form\Extension\Core\DataAccessor\ChainAccessor; use Symfony\Component\Form\Extension\Core\DataAccessor\PropertyPathAccessor; /** * Maps arrays/objects to/from forms using data accessors. * * @author Bernhard Schussek <bschussek@gmail.com> */ class DataMapper implements DataMapperInterface { private DataAccessorInterface $dataAccessor; public function __construct(?DataAccessorInterface $dataAccessor = null) { $this->dataAccessor = $dataAccessor ?? new ChainAccessor([ new CallbackAccessor(), new PropertyPathAccessor(), ]); } public function mapDataToForms(mixed $data, \Traversable $forms): void { $empty = null === $data || [] === $data; if (!$empty && !\is_array($data) && !\is_object($data)) { throw new UnexpectedTypeException($data, 'object, array or empty'); } foreach ($forms as $form) { $config = $form->getConfig(); if (!$empty && $config->getMapped() && $this->dataAccessor->isReadable($data, $form)) { $form->setData($this->dataAccessor->getValue($data, $form)); } else { $form->setData($config->getData()); } } } public function mapFormsToData(\Traversable $forms, mixed &$data): void { if (null === $data) { return; } if (!\is_array($data) && !\is_object($data)) { throw new UnexpectedTypeException($data, 'object, array or empty'); } foreach ($forms as $form) { $config = $form->getConfig(); // Write-back is disabled if the form is not synchronized (transformation failed), // if the form was not submitted and if the form is disabled (modification not allowed) if ($config->getMapped() && $form->isSubmitted() && $form->isSynchronized() && !$form->isDisabled() && $this->dataAccessor->isWritable($data, $form)) { $this->dataAccessor->setValue($data, $form->getData(), $form); } } } /** * @internal */ public function getDataAccessor(): DataAccessorInterface { return $this->dataAccessor; } }
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