Cleanup of externals.

[wolnelektury.git] / apps / newtagging / models.py

diff --git a/apps/newtagging/models.py b/apps/newtagging/models.py
index d3a386b..e1e92b6 100644 (file)
--- a/apps/newtagging/models.py
+++ b/apps/newtagging/models.py
@@ -1,8 +1,11 @@
 """
 Models and managers for generic tagging.
 """
+
 # Python 2.3 compatibility
-if not hasattr(__builtins__, 'set'):
+try:
+    set
+except NameError: 
     from sets import Set as set
 
 from django.contrib.contenttypes import generic
@@ -10,6 +13,7 @@ from django.contrib.contenttypes.models import ContentType
 from django.db import connection, models
 from django.utils.translation import ugettext_lazy as _
 from django.db.models.base import ModelBase
+from django.core.exceptions import ObjectDoesNotExist
 
 qn = connection.ops.quote_name
 
@@ -474,8 +478,11 @@ def create_intermediary_table_model(model):
         unique_together = (('tag', 'content_type', 'object_id'),)
 
     def obj_unicode(self):
-        return u'%s [%s]' % (self.content_type.get_object_for_this_type(pk=self.object_id), self.tag)
-        
+        try:
+            return u'%s [%s]' % (self.content_type.get_object_for_this_type(pk=self.object_id), self.tag)
+        except ObjectDoesNotExist:
+            return u'<deleted> [%s]' % self.tag
+            
     # Set up a dictionary to simulate declarations within a class    
     attrs = {
         '__module__': model.__module__,