Neos\Flow\Tests\Functional\Mvc\Fixtures\Controller\EntityController::initializeUpdateAction PHP Method

    protected function initializeUpdateAction()
    {
        $propertyMappingConfiguration = $this->arguments->getArgument('entity')->getPropertyMappingConfiguration();
        $propertyMappingConfiguration->allowAllProperties()->setTypeConverterOption(PersistentObjectConverter::class, PersistentObjectConverter::CONFIGURATION_MODIFICATION_ALLOWED, true);
        $propertyMappingConfiguration->forProperty('subEntities.*')->allowAllProperties()->setTypeConverterOption(PersistentObjectConverter::class, PersistentObjectConverter::CONFIGURATION_MODIFICATION_ALLOWED, true);
        $propertyMappingConfiguration->forProperty('subEntities.*.date')->setTypeConverterOption(DateTimeConverter::class, DateTimeConverter::CONFIGURATION_DATE_FORMAT, 'd.m.Y');
    }