From 9d46a39e428ce77ba3ccdccd285e7061000698d1 Mon Sep 17 00:00:00 2001
From: Akita Noek <anoek@ansible.com>
Date: Thu, 12 May 2016 16:31:32 -0400
Subject: [PATCH] Added comment context to caught exception

---
 awx/main/migrations/_rbac.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/awx/main/migrations/_rbac.py b/awx/main/migrations/_rbac.py
index 36257fd5d3..94465084b4 100644
--- a/awx/main/migrations/_rbac.py
+++ b/awx/main/migrations/_rbac.py
@@ -152,6 +152,8 @@ def _discover_credentials(instances, cred, orgfunc):
         try:
             _update_credential_parents(orgfunc(instances[0]), cred)
         except AttributeError:
+            # JobTemplate.inventory can be NULL sometimes, eg when an inventory
+            # has been deleted. This protects against that.
             pass
     else:
         for pos, org in enumerate(orgs):