Fix handling invalid dict field value (#485)

2013-11-29 10:33:36 +00:00
parent 3a3b96e0be
commit 6465726008
2 changed files with 2 additions and 1 deletions
--- a/mongoengine/base/fields.py
+++ b/mongoengine/base/fields.py
@@ -203,7 +203,7 @@ class ComplexBaseField(BaseField):
        _dereference = _import_class("DeReference")()

        self._auto_dereference = instance._fields[self.name]._auto_dereference
-        if instance._initialised and dereference:
+        if instance._initialised and dereference and instance._data.get(self.name):
            instance._data[self.name] = _dereference(
                instance._data.get(self.name), max_depth=1, instance=instance,
                name=self.name