From 4ca8f953265d6556d6b4b54e3c73cdb623e079a4 Mon Sep 17 00:00:00 2001
From: Claude Paroz <claude@2xlibre.net>
Date: Thu, 21 Jun 2018 08:41:43 +0200
Subject: [PATCH] Prevent crash when uploaded file has no content-type property

---
 stages/views/__init__.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/stages/views/__init__.py b/stages/views/__init__.py
index 52dfdec..8b5f750 100644
--- a/stages/views/__init__.py
+++ b/stages/views/__init__.py
@@ -295,7 +295,10 @@ class ImportViewBase(FormView):
         except Exception as e:
             if settings.DEBUG:
                 raise
-            messages.error(self.request, "L'importation a échoué. Erreur: %s (content-type: %s)" % (e, upfile.content_type))
+            msg = "L'importation a échoué. Erreur: %s" % e
+            if hasattr(upfile, 'content_type'):
+                msg += " (content-type: %s)" % upfile.content_type
+            messages.error(self.request, msg)
         else:
             non_fatal_errors = stats.get('errors', [])
             if 'created' in stats: