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<?php
/**
* Copyright since 2007 PrestaShop SA and Contributors
* PrestaShop is an International Registered Trademark & Property of PrestaShop SA
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.md.
* It is also available through the world-wide-web at this URL:
* https://opensource.org/licenses/OSL-3.0
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to https://devdocs.prestashop.com/ for more information.
*
* @author PrestaShop SA and Contributors <contact@prestashop.com>
* @copyright Since 2007 PrestaShop SA and Contributors
* @license https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
*/
namespace PrestaShopBundle\Form\DataTransformer;
use Symfony\Component\Form\DataTransformerInterface;
/**
* Class DefaultLanguageToFilledArrayDataTransformer is responsible for filling empty array values with
* default language value if such exists.
*/
final class DefaultLanguageToFilledArrayDataTransformer implements DataTransformerInterface
{
/**
* @var int
*/
private $defaultLanguageId;
/**
* @param int $defaultLanguageId
*/
public function __construct($defaultLanguageId)
{
$this->defaultLanguageId = $defaultLanguageId;
}
/**
* {@inheritdoc}
*/
public function transform($value)
{
// No transformation is required here due to this data is being sent to template
return $value;
}
/**
* {@inheritdoc}
*
* @param array $values
*/
public function reverseTransform($values)
{
if (!$this->assertIsValidForDataTransforming($values)) {
return $values;
}
$defaultValue = $values[$this->defaultLanguageId];
foreach ($values as $languageId => $item) {
if (!$item) {
$values[$languageId] = $defaultValue;
}
}
return $values;
}
/**
* Checks if the value is array and default language key exists in array.
*
* @param array $values
*
* @return bool
*/
private function assertIsValidForDataTransforming($values)
{
return is_array($values) && isset($values[$this->defaultLanguageId]) && $values[$this->defaultLanguageId];
}
}