Container: fix label generation on creation

1 files changed, 6 insertions, 1 deletions

diff --git a/archaeological_warehouse/models.py b/archaeological_warehouse/models.py
index 870f10d95..0a05320fa 100644
--- a/archaeological_warehouse/models.py
+++ b/archaeological_warehouse/models.py
@@ -24,6 +24,7 @@ import uuid
 from django.conf import settings
 from django.contrib.gis.db import models
 from django.contrib.postgres.indexes import GinIndex
+from django.core.exceptions import ObjectDoesNotExist
 from django.core.urlresolvers import reverse
 from django.db.models import Q, Max, Count
 from django.db.models.signals import post_save, post_delete, m2m_changed
@@ -867,7 +868,11 @@ class Container(DocumentItem, Merge, LightHistorizedItem, QRCodeItem, GeoItem,
             "{} {}".format(loca.container_type.name, loca.reference)
             for loca in reversed(parents)
         ]
-        locas.append("{} {}".format(self.container_type.name, self.reference))
+        try:
+            locas.append("{} {}".format(self.container_type.name,
+                                        self.reference))
+        except ObjectDoesNotExist:  # generate too early on item creation
+            pass
         return " | ".join(locas)
 
     def _get_base_image_path(self):