<?php
namespace Symfony\Tests\Component\Form\Fixtures;
use Symfony\Component\Form\DataTransformerInterface;
class FixedDataTransformer implements DataTransformerInterface
{
private $mapping;
public function __construct(array $mapping)
$this->mapping = $mapping;
}
public function transform($value)
if (!array_key_exists($value, $this->mapping)) {
throw new \RuntimeException(sprintf('No mapping for value "%s"', $value));
return $this->mapping[$value];
public function reverseTransform($value)
$result = array_search($value, $this->mapping, true);
if ($result === false) {
throw new \RuntimeException(sprintf('No reverse mapping for value "%s"', $value));
return $result;