def tender_guarantee(self):
if self.lots:
lots_amount = [i.guarantee.amount for i in self.lots if i.guarantee]
if not lots_amount:
return self.guarantee
guarantee = {'amount': sum(lots_amount)}
lots_currency = [i.guarantee.currency for i in self.lots if i.guarantee]
guarantee['currency'] = lots_currency[0] if lots_currency else None
if self.guarantee:
guarantee['currency'] = self.guarantee.currency
return Guarantee(guarantee)
else:
return self.guarantee
def lot_guarantee(self):
if self.guarantee:
currency = self.__parent__.guarantee.currency if self.__parent__.guarantee else self.guarantee.currency
return Guarantee(dict(amount=self.guarantee.amount, currency=currency))