Symfony2 forms interpret blank strings as nulls

Question

I have a Symfony2 form with a variety of fields, including one optional text field called recap.

This recap field saves perfectly when there\'s

Answer 1

True, lost many hours on it ;-( the "transformation" is hardcoded in component Form.php line 1113 !

private function viewToNorm($value)
{
    $transformers = $this->config->getViewTransformers();

    if (!$transformers) {
        return '' === $value ? null : $value;
    }

    for ($i = count($transformers) - 1; $i >= 0; --$i) {
        $value = $transformers[$i]->reverseTransform($value);
    }

    return $value;
}

In my opinion, its a big error (because is the role of DataTransformer, not Form). So the solution is to create your own DataTransformer and associate it to the text type. Currently I am losing so much time with Symfony2, always seeking in the sources these kind of little hack ;-(