58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
from functools import partial
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from registrasion.models.commerce import Invoice, LineItem
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def generate_ticket(prefix, length, num):
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return "%d-%0*d" % (prefix, length, num)
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def create_ticket_numbers(item):
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quantity = item['quantity']
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length = len(str(quantity))
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ticket_func = partial(generate_ticket, item['id'], length)
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return map(ticket_func, range(1, quantity+1))
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class RaffleMixin:
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@property
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def is_open(self):
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prizes = self.prizes.all()
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return len(prizes) and not all(p.locked for p in prizes)
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def draw(self, user):
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self.draws.create(drawn_by=user)
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def get_tickets(self, user=None):
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filters = {
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'invoice__status': Invoice.STATUS_PAID,
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'product__in': self.products.all()
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}
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if user is not None:
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filters['invoice__user'] = user
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for item in LineItem.objects.filter(**filters).values('id', 'quantity'):
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yield (item['id'], list(create_ticket_numbers(item)))
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class LockMixin():
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@property
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def locked(self):
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return self._locked
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def unlock(self, user):
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self.audit_events.create(user=user, reason="Unlocked")
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self._locked = False
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class PrizeMixin:
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def remove_winner(self, user):
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reason = "Removed winning ticket: {}".format(self.winning_ticket.id)
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self.audit_events.create(user=user, reason=reason)
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self.winning_ticket = None
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self.save(update_fields=('winning_ticket',))
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