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ModelsToArrayTransformer.php
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ModelsToArrayTransformer.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;
use \PropelCollection;
use \PropelObjectCollection;
/**
* ModelsToArrayTransformer class.
*
* @author William Durand <william.durand1@gmail.com>
* @author Pierre-Yves Lebecq <py.lebecq@gmail.com>
*/
class ModelsToArrayTransformer implements DataTransformerInterface
{
/**
* @var \Propel\PropelBundle\Form\ChoiceList\ModelChoiceList
*/
private $choiceList;
/**
* @param \Propel\PropelBundle\Form\ChoiceList\ModelChoiceList $choiceList
*/
public function __construct(ModelChoiceList $choiceList)
{
$this->choiceList = $choiceList;
}
public function transform($collection)
{
if (null === $collection) {
return array();
}
if (!$collection instanceof PropelCollection) {
throw new UnexpectedTypeException($collection, '\PropelCollection');
}
$array = array();
if (count($this->choiceList->getIdentifier()) > 1) {
$availableModels = $this->choiceList->getModels();
foreach ($collection as $model) {
$key = array_search($model, $availableModels);
$array[] = $key;
}
} else {
foreach ($collection as $model) {
$array[] = current($this->choiceList->getIdentifierValues($model));
}
}
return $array;
}
public function reverseTransform($keys)
{
$collection = new PropelObjectCollection();
if ('' === $keys || null === $keys) {
return $collection;
}
if (!is_array($keys)) {
throw new UnexpectedTypeException($keys, 'array');
}
$notFound = array();
foreach ($keys as $key) {
if ($model = $this->choiceList->getModel($key)) {
$collection->append($model);
} else {
$notFound[] = $key;
}
}
if (count($notFound) > 0) {
throw new TransformationFailedException(sprintf('The models with keys "%s" could not be found', implode('", "', $notFound)));
}
return $collection;
}
}