1 files changed, 18 insertions, 1 deletions
diff --git a/archaeological_warehouse/models.py b/archaeological_warehouse/models.py
index b32d608af..ecf33bb87 100644
--- a/archaeological_warehouse/models.py
+++ b/archaeological_warehouse/models.py
@@ -27,7 +27,8 @@ 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
+from django.db.models.signals import post_save, post_delete, m2m_changed, \
+    pre_delete
 from django.template.defaultfilters import slugify
 from ishtar_common.utils import ugettext_lazy as _, pgettext_lazy
 
@@ -1368,7 +1369,23 @@ def container_post_save(sender, **kwargs):
         loca.save()
 
 
+def container_pre_delete(sender, **kwargs):
+    instance = kwargs["instance"]
+    q = Container.objects.filter(
+        container_tree_child__container_parent=instance)
+    q.update(cached_division="")
+
+
+def container_post_delete(sender, **kwargs):
+    instance = kwargs["instance"]
+    q = Container.objects.filter(cached_division="", location=instance.location)
+    for c in q.all():
+        c.save()
+
+
 post_save.connect(container_post_save, sender=Container)
+pre_delete.connect(container_pre_delete, sender=Container)
+post_delete.connect(container_post_delete, sender=Container)
 m2m_changed.connect(document_attached_changed,
                     sender=Container.documents.through)