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uday12kumar/lock book.py

Created January 28, 2020 12:31
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lock book.py
@classmethod
def book(cls, id, seats_selected):
with transaction.atomic():
if seats < self.seats_selected:
raise errors.InsufficientSeats()
slot = (cls.objects.select_for_update().get(id=id))
slot.seats -= seats_selected
slot.save()
return slot
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