src/Knp/DictionaryBundle/ValueTransformer/Aggregate.php
public function transform($value)
    {
        foreach ($this->transformers as $transformer) {
            if ($transformer->supports($value)) {
                return $transformer->transform($value);
            }
        }

        return $value;
    }
public function transform($value)
    {
        foreach ($this->transformers as $transformer) {
            if ($transformer->supports($value)) {
                return $transformer->transform($value);
            }
        }

        return $value;
    }
{@inheritdoc}