# This file is part of Tryton. The COPYRIGHT file at the top level of # this repository contains the full copyright notices and license terms. from trytond.pool import Pool, PoolMeta from trytond.tools import cached_property class InvoiceLine(metaclass=PoolMeta): __name__ = 'account.invoice.line' @cached_property def product_name(self): pool = Pool() SaleLine = pool.get('sale.line') name = super().product_name if (isinstance(self.origin, SaleLine) and self.origin.product_customer): name = self.origin.product_customer.rec_name return name