[billreminder/fresh] Handle graphic of bills with no category.

[Og B. Maciel <ogmaciel src gnome org>]

commit 10834d649a734869810f534b63ed2b2db2b6dba8
Author: Og B. Maciel <ogmaciel gnome org>
Date:   Mon Jan 25 22:14:29 2010 -0500

    Handle graphic of bills with no category.

 src/gui/new.py |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gui/new.py b/src/gui/new.py
index 5ae4a7b..2d4103f 100755
--- a/src/gui/new.py
+++ b/src/gui/new.py
@@ -140,10 +140,10 @@ class MainWindow:
 
 
         # totals by category
-        bills = sorted(bills, key=lambda bill: bill.category.name)
+        bills = sorted(bills, key=lambda bill: bill.category.name if bill.category else _("None"))
         category_keys = []
         category_amount = []
-        for category, totals in itertools.groupby(bills, lambda bill: bill.category):
+        for category, totals in itertools.groupby(bills, lambda bill: bill.category if bill.category else entities.Category()):
             total_amount = sum([float(total.amount) for total in totals])
             category_keys.append(category.name)
             category_amount.append(total_amount)