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# 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.model import fields
from trytond.pool import PoolMeta
from trytond.pyson import Eval
class Line(metaclass=PoolMeta):
__name__ = 'purchase.line'
@classmethod
def __setup__(cls):
super().__setup__()
cls.product.search_context['date'] = Eval(
'_parent_purchase', {}).get('purchase_date')
@fields.depends('purchase', '_parent_purchase.purchase_date')
def _get_context_purchase_price(self):
context = super()._get_context_purchase_price()
if self.purchase:
context.setdefault('date', self.purchase.purchase_date)
return context
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