From bf9bb35039ebbdb2ec0fb4aea14a007f7722321c Mon Sep 17 00:00:00 2001
From: Fabien Meghazi <fme@openerp.com>
Date: Mon, 12 Aug 2013 12:52:11 +0200
Subject: [PATCH] [ADD] Qweb __stack__ and __caller__ in QWeb rendering context

bzr revid: fme@openerp.com-20130812105211-r2ct4wjf2hj8gbeu
---
 openerp/tools/qweb.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/openerp/tools/qweb.py b/openerp/tools/qweb.py
index 543cc01fc90..5bf4cef9ae4 100644
--- a/openerp/tools/qweb.py
+++ b/openerp/tools/qweb.py
@@ -147,6 +147,11 @@ class QWebXml(object):
         if v is None:
             v = {}
         v['__template__'] = tname
+        stack = v.get('__stack__', [])
+        if stack:
+            v['__caller__'] = stack[-1]
+        stack.append(tname)
+        v['__stack__'] = stack
         v = QWebContext(v, self.undefined_handler)
         return self.render_node(self.get_template(tname), v)