Handle migrated records with NULL in them when building diff

diff --git a/pgweb/util/signals.py b/pgweb/util/signals.py
index 4fbe96dfaccdd536737e4c25304f07b3ba9f0471..76d1c747ddb10024cfbf70625d0307c780a4783a 100644 (file)
--- a/pgweb/util/signals.py
+++ b/pgweb/util/signals.py
@@ -60,7 +60,8 @@ def _get_attr_value(obj, fieldname):
                        # access the primary key
                        return "<not available yet>"
                return u", ".join(map(lambda x: unicode(x), getattr(obj, fieldname).all()))
-       return getattr(obj, fieldname)
+       # Return the value, or an empty tring if it's NULL (migrated records)
+       return getattr(obj, fieldname) or ''
 
 def _get_full_text_representation(obj):
        fieldlist = _get_all_notification_fields(obj)