Feature/doctrine type guesser simple json array support

src/Symfony/Bridge/Doctrine/CHANGELOG.md

@@ -6,6 +6,7 @@ CHANGELOG
 
  * deprecated injecting `ClassMetadataFactory` in `DoctrineExtractor`,
    an instance of `EntityManagerInterface` should be injected instead
+ * added support for `simple_array` type
 
 4.1.0
 -----

src/Symfony/Bridge/Doctrine/Form/DoctrineOrmTypeGuesser.php

@@ -53,6 +53,7 @@ class DoctrineOrmTypeGuesser implements FormTypeGuesserInterface
 
         switch ($metadata->getTypeOfField($property)) {
             case Type::TARRAY:
+            case Type::SIMPLE_ARRAY:
                 return new TypeGuess('Symfony\Component\Form\Extension\Core\Type\CollectionType', array(), Guess::MEDIUM_CONFIDENCE);
             case Type::BOOLEAN:
                 return new TypeGuess('Symfony\Component\Form\Extension\Core\Type\CheckboxType', array(), Guess::HIGH_CONFIDENCE);