mirror of
https://gitlab.com/datalifeit/trytond-stock_last_price
synced 2023-12-14 04:52:59 +01:00
58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
# The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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from sql.aggregate import Max
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from trytond.model import fields
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from trytond.pool import PoolMeta, Pool
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from trytond.pyson import Eval
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from trytond.transaction import Transaction
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__all__ = ['SaleLine']
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class SaleLine:
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__name__ = 'sale.line'
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__metaclass__ = PoolMeta
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last_prices = fields.Function(
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fields.Many2Many('sale.line', None, None, 'Last prices',
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domain=[('product', '=', Eval('product'))],
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depends=['product']),
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'get_last_prices')
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sale_date = fields.Function(
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fields.Date('Sale date'), 'get_sale_date')
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@fields.depends('product', '_parent_sale.id',
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'_parent_sale.party', '_parent_sale.sale_date')
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def on_change_with_last_prices(self):
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return self.get_last_prices([self])[self.id]
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@classmethod
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def get_last_prices(cls, records, name=None):
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pool = Pool()
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Sale = pool.get('sale.sale')
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sale = Sale.__table__()
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sale_line = cls.__table__()
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cursor = Transaction().connection.cursor()
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res = {r.id: [] for r in records}
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for record in records:
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cursor.execute(*sale_line.join(
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sale, condition=(sale.id == sale_line.sale)
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).select(Max(sale_line.id),
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where=((sale_line.type == 'line') &
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(sale.id != record.sale.id) &
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(sale_line.product == record.product.id) &
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(sale.party == record.sale.party.id) &
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(sale.state != 'cancelled') &
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(sale.sale_date <= record.sale.sale_date)),
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order_by=(sale_line.product, sale.id),
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group_by=(sale_line.product, sale.id),
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limit=3)
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)
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res[record.id] = [row[0] for row in cursor.fetchall()] or []
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return res
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@classmethod
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def get_sale_date(cls, records, name=None):
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return {r.id: r.sale.sale_date for r in records}
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