From 94e83cdfb36fd889c3657d1fbe389747b175a969 Mon Sep 17 00:00:00 2001
From: DawoudSheraz <dawoud.sheraz@arbisoft.com>
Date: Thu, 21 Nov 2019 16:53:21 +0500
Subject: [PATCH] log section and subsection information during URL retrieval
 failure

---
 cms/djangoapps/contentstore/utils.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/cms/djangoapps/contentstore/utils.py b/cms/djangoapps/contentstore/utils.py
index 895e92277a..baaf4ff535 100644
--- a/cms/djangoapps/contentstore/utils.py
+++ b/cms/djangoapps/contentstore/utils.py
@@ -546,7 +546,15 @@ def get_sibling_urls(subsection):
             break
         last_block = block
     if not prev_loc:
-        sections = section.get_parent().get_children()
+        try:
+            sections = section.get_parent().get_children()
+        except AttributeError:
+            log.error(u"Error retrieving URLs in subsection {subsection} included in section {section}".format(
+                section=section.location,
+                subsection=subsection.location
+            ))
+            raise
+
         try:
             prev_section = sections[sections.index(section) - 1]
             prev_loc = prev_section.get_children()[-1].get_children()[-1].location