Ticket #12550: django1.2nulldecimal.patch

contrib/admin/util.py

@@ -286 +286 @@
     elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
         return _boolean_icon(value)
     elif isinstance(field, models.DecimalField):
-        return formats.number_format(value, field.decimal_places)
+        if value:
+            return formats.number_format(value, field.decimal_places)
+        else:
+            return EMPTY_CHANGELIST_VALUE
     elif isinstance(field, models.FloatField):
         return formats.number_format(value)
     elif field.flatchoices: