/usr/lib/python2.7/dist-packages/trytond/modules/product_cost_fifo/move.py is in tryton-modules-product-cost-fifo 3.4.0-1.
This file is owned by root:root, with mode 0o644.
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#this repository contains the full copyright notices and license terms.
from decimal import Decimal
from trytond.model import Workflow, ModelView, fields
from trytond.pyson import Eval
from trytond.pool import Pool, PoolMeta
__all__ = ['Move']
__metaclass__ = PoolMeta
class Move:
__name__ = 'stock.move'
fifo_quantity = fields.Float('FIFO Quantity',
digits=(16, Eval('unit_digits', 2)),
depends=['unit_digits'])
@classmethod
def __setup__(cls):
super(Move, cls).__setup__()
cls._sql_constraints += [
('check_fifo_quantity_out',
'CHECK(quantity >= fifo_quantity)',
'FIFO quantity can not be greater than quantity.'),
]
cls._error_messages.update({
'del_move_fifo': ('You can not delete move "%s" that is used '
'for FIFO cost price.'),
})
@staticmethod
def default_fifo_quantity():
return 0.0
def _update_fifo_out_product_cost_price(self):
'''
Update the product cost price of the given product on the move. Update
fifo_quantity on the concerned incomming moves. Return the
cost price for outputing the given product and quantity.
'''
Uom = Pool().get('product.uom')
total_qty = Uom.compute_qty(self.uom, self.quantity,
self.product.default_uom, round=False)
fifo_moves = self.product.template.get_fifo_move(total_qty)
cost_price = Decimal("0.0")
consumed_qty = 0.0
for move, move_qty in fifo_moves:
consumed_qty += move_qty
move_unit_price = Uom.compute_price(move.uom, move.unit_price,
move.product.default_uom)
cost_price += move_unit_price * Decimal(str(move_qty))
move.quantity = move_qty
move._update_product_cost_price('out')
move_qty = Uom.compute_qty(self.product.default_uom, move_qty,
move.uom, round=False)
# Use write as move instance quantity was modified to call
# _update_product_cost_price
self.write([self.__class__(move.id)], {
'fifo_quantity': (move.fifo_quantity or 0.0) + move_qty,
})
if Decimal(str(consumed_qty)) != Decimal("0"):
cost_price = cost_price / Decimal(str(consumed_qty))
if cost_price != Decimal("0"):
digits = self.__class__.cost_price.digits
return cost_price.quantize(
Decimal(str(10.0 ** -digits[1])))
else:
return self.product.cost_price
def _do(self):
if (self.from_location.type in ('supplier', 'production')
and self.to_location.type == 'storage'
and self.product.cost_price_method == 'fifo'):
self._update_product_cost_price('in')
elif (self.to_location.type == 'supplier'
and self.from_location.type == 'storage'
and self.product.cost_price_method == 'fifo'):
self._update_product_cost_price('out')
elif (self.from_location.type == 'storage'
and self.to_location.type != 'storage'
and self.product.cost_price_method == 'fifo'):
cost_price = self._update_fifo_out_product_cost_price()
if not self.cost_price:
self.cost_price = cost_price
super(Move, self)._do()
@classmethod
@ModelView.button
@Workflow.transition('cancel')
def cancel(cls, moves):
pass
@classmethod
def delete(cls, moves):
fifo_moves = cls.search([
('id', 'in', [m.id for m in moves]),
('fifo_quantity', '!=', 0.0),
])
if fifo_moves:
cls.raise_user_error('del_move_fifo', (fifo_moves[0].rec_name,))
super(Move, cls).delete(moves)
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