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-rw-r--r--program/models.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/models.py b/program/models.py
index 891f0b7..b73e7ac 100644
--- a/program/models.py
+++ b/program/models.py
@@ -241,7 +241,7 @@ class TimeSlotManager(models.Manager):
class TimeSlot(models.Model):
programslot = models.ForeignKey(ProgramSlot, related_name='timeslots', verbose_name=_("Program slot"))
- start = models.DateTimeField(_("Start time"))
+ start = models.DateTimeField(_("Start time"), unique=True)
end = models.DateTimeField(_("End time"))
show = models.ForeignKey(Show, editable=False)