dal.py: BaseAdapter: insert: solved problem when creating new record without passing the primary key as argument

gluon/dal.py

@@ -1363,6 +1363,8 @@ class BaseAdapter(ConnectionPool):
             if mydict != {}:
                 return mydict
         id = self.lastrowid(table)
+        if hasattr(table, '_primarykey') and len(table._primarykey) == 1:
+            id = {table._primarykey[0]: id}
         if not isinstance(id, (int, long)):
             return id
         rid = Reference(id)