/
ModelToIdTransformer.php
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/
ModelToIdTransformer.php
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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\Bridge\Propel1\Form\DataTransformer;
use Symfony\Bridge\Propel1\Form\ChoiceList\ModelChoiceList;
use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
use Symfony\Component\Form\Exception\TransformationFailedException;
/**
* @author William Durand <william.durand1@gmail.com>
*/
class ModelToIdTransformer implements DataTransformerInterface
{
/**
* @var \Propel\PropelBundle\Form\ChoiceList\ModelChoiceList
*/
private $choiceList;
/**
* @param \Propel\PropelBundle\Form\ChoiceList\ModelChoiceList $choiceList
*/
public function __construct(ModelChoiceList $choiceList)
{
$this->choiceList = $choiceList;
}
public function transform($model)
{
if (null === $model || '' === $model) {
return '';
}
if (!is_object($model)) {
throw new UnexpectedTypeException($model, 'object');
}
if (count($this->choiceList->getIdentifier()) > 1) {
$availableModels = $this->choiceList->getModels();
return array_search($model, $availableModels);
}
return current($this->choiceList->getIdentifierValues($model));
}
public function reverseTransform($key)
{
if ('' === $key || null === $key) {
return null;
}
if (count($this->choiceList->getIdentifier()) > 1 && !is_numeric($key)) {
throw new UnexpectedTypeException($key, 'numeric');
}
if (!$model = $this->choiceList->getModel($key)) {
throw new TransformationFailedException(sprintf('The model with key "%s" could not be found', $key));
}
return $model;
}
}