delete banquet seatings

from banquet.models import Banquet, Table, Seat

banquet = Banquet.objects.filter(fair__current=True).first()
all_seats = Seat.objects.filter(table__banquet=banquet).delete()
print('Deleted number of seats: ', len(all_seats))

all_tables = Table.objects.filter(banquet=banquet).delete()
print('Deleted number of tables: ', len(all_tables))