Fix modification link in admin

1 files changed, 7 insertions, 0 deletions

diff --git a/chimere/models.py b/chimere/models.py
index 445221b..79252f6 100644
--- a/chimere/models.py
+++ b/chimere/models.py
@@ -334,6 +334,13 @@ class GeographicItem(models.Model):
         self.import_key = new_keys
         self.save()
 
+    def has_modified(self):
+        if (self.ref_item and self.ref_item != self) \
+           or self.__class__.objects.filter(ref_item=self
+                                ).exclude(pk=self.pk).count():
+            return True
+        return False
+
     @classmethod
     def properties(cls):
         return [pm for pm in PropertyModel.objects.filter(available=True)]