Fix #36

Author: DavidBadura

Form/EventListener/BindRequestListener.php

@@ -70,7 +70,7 @@ public function preBind(FormEvent $event)
     private function unserializeForm($data, $form, $isXml, $isPatch)
     {
         if ($form->getConfig()->hasAttribute('serialize_collection_form')) {
-            $form   = $form->getAttribute('serialize_collection_form');
+            $form   = $form->getConfig()->getAttribute('serialize_collection_form');
             $result = array();
 
             if (!isset($data[0])) {

Serializer/FormSerializer.php

@@ -140,7 +140,7 @@ private function serializeForm(FormInterface $form, $isXml)
         $data = array();
         $namingStrategy = $this->options->getNamingStrategy();
 
-        foreach ($form->getChildren() as $child) {
+        foreach ($form->all() as $child) {
             $options = $child->getConfig()->getOptions();
             $name    = $options['serialize_name'] ?: $namingStrategy->translateName($child);