Bugfix [json-rpc] correctly parse response that results in None

CHANGELOG.rst

@@ -6,6 +6,10 @@ Release 0.6.9.dev0
 
 - ``external_ids`` plugin now adds ``Record.as_xmlid`` method
 - bugfix: ensure thet record is present in cache on init of Record class
+- bugfix: [json-rpc], if RPC method results in None, then there is no
+  'result' object in response, so if there are no 'error' object, nor 'result',
+  then suppose that 'result' is None, thus it is possible to deal with
+  Odoo methods, that returns None as result via RPC
 
 
 Release 0.6.8

openerp_proxy/connection/jsonrpc.py

@@ -89,7 +89,9 @@ def __call__(self, *args):
             raise JSONRPCError(error['message'],
                                code=error.get('code', None),
                                data=error.get('data', None))
-        return result["result"]
+        # if 'result' is not present in response object, then it seems, that
+        # result is None
+        return result.get("result", None)
 
 
 class JSONRPCProxy(object):