Don't crash updating a thread's date when it has no msg yet

2 files changed, 11 insertions, 2 deletions

diff --git a/kittystore/storm/model.py b/kittystore/storm/model.py
index f0596ea..a77f756 100644
--- a/kittystore/storm/model.py
+++ b/kittystore/storm/model.py
@@ -216,5 +216,9 @@ class Thread(Storm):
         """Auto-set the active date from the last email in thread"""
         if self.date_active is not None:
             return
-        self.date_active = list(self.emails.order_by(Desc(Email.date)
-                                ).config(limit=1).values(Email.date))[0]
+        email_dates = list(self.emails.order_by(Desc(Email.date)
+                                ).config(limit=1).values(Email.date))
+        if email_dates:
+            self.date_active = email_dates[0]
+        else:
+            self.date_active = datetime.datetime.now()
diff --git a/kittystore/test/test_storm_model.py b/kittystore/test/test_storm_model.py
index 38ba6c2..c1507c1 100644
--- a/kittystore/test/test_storm_model.py
+++ b/kittystore/test/test_storm_model.py
@@ -89,3 +89,8 @@ class TestStormModel(unittest.TestCase):
         self.store.add_to_list(ml, msg)
         thread = self.store.db.find(Thread).one()
         self.assertEqual(thread.subject, "Dummy subject")
+
+    def test_thread_no_email(self):
+        thread = Thread("example-list", "<msg1>")
+        self.store.db.add(thread)
+        self.store.flush()