forked from CGM_Public/pretix_original
103 lines
3.8 KiB
Python
103 lines
3.8 KiB
Python
from django.db.models import Count, Q
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from django.utils.translation import gettext_lazy as _
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from pretix.base.i18n import LazyLocaleException
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from pretix.base.models import CartPosition, Seat
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class SeatProtected(LazyLocaleException):
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def __init__(self, *args):
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msg = args[0]
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msgargs = args[1] if len(args) > 1 else None
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self.args = args
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if msgargs:
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msg = _(msg) % msgargs
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else:
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msg = _(msg)
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super().__init__(msg)
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def validate_plan_change(event, subevent, plan):
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current_taken_seats = set(
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event.seats.select_related('product').annotate(
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has_op=Count('orderposition')
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).annotate(has_v=Count('vouchers')).filter(
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subevent=subevent,
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).filter(
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Q(has_v=True) | Q(has_op=True)
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).values_list('seat_guid', flat=True).order_by()
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)
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new_seats = {
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ss.guid for ss in plan.iter_all_seats()
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} if plan else set()
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leftovers = list(current_taken_seats - new_seats)
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if leftovers:
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raise SeatProtected(_('You can not change the plan since seat "%s" is not present in the new plan and is '
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'already sold.'), leftovers[0])
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def generate_seats(event, subevent, plan, mapping):
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current_seats = {}
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for s in event.seats.select_related('product').annotate(
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has_op=Count('orderposition'), has_v=Count('vouchers')
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).filter(subevent=subevent).order_by():
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if s.seat_guid in current_seats:
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s.delete() # Duplicates should not exist
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else:
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current_seats[s.seat_guid] = s
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def update(o, a, v):
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if getattr(o, a) != v:
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setattr(o, a, v)
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return True
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return False
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create_seats = []
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if plan:
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for ss in plan.iter_all_seats():
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p = mapping.get(ss.category)
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if ss.guid in current_seats:
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seat = current_seats.pop(ss.guid)
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updated = any([
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update(seat, 'product', p),
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update(seat, 'name', ss.name),
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update(seat, 'row_name', ss.row),
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update(seat, 'seat_number', ss.number),
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update(seat, 'zone_name', ss.zone),
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update(seat, 'sorting_rank', ss.sorting_rank),
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update(seat, 'row_label', ss.row_label),
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update(seat, 'seat_label', ss.seat_label),
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update(seat, 'x', ss.x),
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update(seat, 'y', ss.y),
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])
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if updated:
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seat.save()
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else:
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create_seats.append(Seat(
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event=event,
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subevent=subevent,
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seat_guid=ss.guid,
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name=ss.name,
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row_name=ss.row,
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seat_number=ss.number,
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zone_name=ss.zone,
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sorting_rank=ss.sorting_rank,
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row_label=ss.row_label,
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seat_label=ss.seat_label,
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x=ss.x,
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y=ss.y,
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product=p,
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))
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for s in current_seats.values():
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if s.has_op:
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raise SeatProtected(_('You can not change the plan since seat "%s" is not present in the new plan and is '
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'already sold.', s.name))
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if s.has_v:
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raise SeatProtected(_('You can not change the plan since seat "%s" is not present in the new plan and is '
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'already used in a voucher.', s.name))
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Seat.objects.bulk_create(create_seats)
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CartPosition.objects.filter(seat__in=[s.pk for s in current_seats.values()]).delete()
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Seat.objects.filter(pk__in=[s.pk for s in current_seats.values()]).delete()
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