concurrency-code-1

models.py

# models.py
class Ticket(models.Model):
    event = models.CharField(max_length=100)
    available_seats = models.IntegerField()

# views.py
def reserve_ticket(request, ticket_id):
    ticket = get_object_or_404(Ticket, id=ticket_id)
    if ticket.available_seats > 0:
        ticket.available_seats -= 1
        ticket.save()
        # Process reservation
    else:
        # Handle no available seats
        pass