50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
# This file is part of Tryton. 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 import Column
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from sql.aggregate import Max
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from sql.conditionals import Coalesce
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from trytond.model import ModelView, ModelSQL, fields
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from trytond.pool import Pool, PoolMeta
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__all__ = ['ProductCostPrice', 'ProductCostHistory']
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class ProductCostPrice(metaclass=PoolMeta):
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__name__ = 'product.cost_price'
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_history = True
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class ProductCostHistory(ModelSQL, ModelView):
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'History of Product Cost'
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__name__ = 'product.product.cost_history'
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product = fields.Many2One('product.product', "Product")
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date = fields.DateTime('Date')
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cost_price = fields.Numeric('Cost Price')
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@classmethod
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def __setup__(cls):
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super(ProductCostHistory, cls).__setup__()
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cls._order.insert(0, ('date', 'DESC'))
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@classmethod
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def table_query(cls):
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pool = Pool()
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ProductCostPrice = pool.get('product.cost_price')
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history = ProductCostPrice.__table_history__()
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return history.select(Max(Column(history, '__id')).as_('id'),
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Max(history.create_uid).as_('create_uid'),
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Max(history.create_date).as_('create_date'),
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Max(history.write_uid).as_('write_uid'),
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Max(history.write_date).as_('write_date'),
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Coalesce(history.write_date,
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history.create_date).as_('date'),
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history.product.as_('product'),
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history.cost_price.as_('cost_price'),
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group_by=(history.id,
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Coalesce(history.write_date, history.create_date),
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history.product, history.cost_price))
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def get_rec_name(self, name):
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return str(self.date)
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