fixed index out range.

1 files changed, 7 insertions, 4 deletions

diff --git a/program/models.py b/program/models.py
index 3d71911..c176fda 100644
--- a/program/models.py
+++ b/program/models.py
@@ -373,10 +373,13 @@ class ProgramSlot(models.Model):
     timeslot_count.description = _("Time slot count")
 
     def has_active_timeslot(self):
-        start = self.timeslots.all().order_by("start")[0].start
-        end = self.timeslots.all().order_by("-end")[0].end
-        now = datetime.now()
-        return (start < now and end > now)
+        if self.timeslots.count() > 0:
+            start = self.timeslots.all().order_by("start")[0].start
+            end = self.timeslots.all().order_by("-end")[0].end
+            now = datetime.now()
+            return (start < now and end > now)
+        else:
+            return False
 
 class TimeSlotManager(models.Manager):
     def get_or_create_current(self):