Fix NULL values with SQLCustomType

2014-11-30 19:53:33 +01:00
parent a1524d4da4
commit 6228de8e10
1 changed files with 1 additions and 1 deletions
@@ -1323,7 +1323,7 @@ class BaseAdapter(ConnectionPool):
            value = fieldtype.encoder(obj)
            if fieldtype.type in ('string','text', 'json'):
                return self.adapt(value)
-            return value
+            return value or 'NULL'
        if isinstance(obj, (Expression, Field)):
            return str(obj)
        if field_is_type('list:'):