PropertyPathAccessor example

    public function testMapFormsToDataMapsDateTimeInstanceToArrayIfNotSetBefore()
    {
        $propertyAccessor = PropertyAccess::createPropertyAccessorBuilder()
            ->enableExceptionOnInvalidIndex()
            ->getPropertyAccessor();
        $propertyAccessor = PropertyAccess::createPropertyAccessorBuilder()
            ->enableExceptionOnInvalidIndex()
            ->getPropertyAccessor();
        $form = (new FormFactoryBuilder())->getFormFactory()->createBuilder()
            ->setDataMapper(new DataMapper(new PropertyPathAccessor($propertyAccessor)))
            ->add('date', DateType::class, [
                'auto_initialize' => false,
                'format' => 'dd/MM/yyyy',
                'html5' => false,
                'model_timezone' => 'UTC',
                'view_timezone' => 'UTC',
                'widget' => 'single_text',
            ])
            ->getForm();

        $form->submit([
            

$this->assertSame('Submitted data was expected to be text or number, file upload given.', $this->form->get('bar')->getTransformationFailure()->getMessage());
        $this->assertNull($this->form->get('bar')->getData());
    }

    public function testMapDateTimeObjectsWithEmptyArrayDataUsingDataMapper()
    {
        $propertyAccessor = PropertyAccess::createPropertyAccessorBuilder()
            ->enableExceptionOnInvalidIndex()
            ->getPropertyAccessor();
        $form = $this->factory->createBuilder()
            ->setDataMapper(new DataMapper(new PropertyPathAccessor($propertyAccessor)))
            ->add('date', DateType::class, [
                'auto_initialize' => false,
                'format' => 'dd/MM/yyyy',
                'html5' => false,
                'model_timezone' => 'UTC',
                'view_timezone' => 'UTC',
                'widget' => 'single_text',
            ])
            ->getForm();

        $form->submit([
            

use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
use Symfony\Contracts\Translation\TranslatableInterface;

class FormType extends BaseType
{
    private DataMapper $dataMapper;

    public function __construct(PropertyAccessorInterface $propertyAccessor = null)
    {
        $this->dataMapper = new DataMapper(new ChainAccessor([
            new CallbackAccessor(),
            new PropertyPathAccessor($propertyAccessor ?? PropertyAccess::createPropertyAccessor()),
        ]));
    }

    /** * @return void */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        parent::buildForm($builder, $options);

        $isDataOptionSet = \array_key_exists('data', $options);

        

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');
        }