/usr/lib/python3/dist-packages/trytond/modules/account_stock_landed_cost_weight/account.py is in tryton-modules-account-stock-landed-cost-weight 4.6.0-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | # 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 decimal import Decimal
from trytond.pool import PoolMeta
__all__ = ['LandedCost']
class LandedCost(metaclass=PoolMeta):
__name__ = 'account.landed_cost'
@classmethod
def __setup__(cls):
super(LandedCost, cls).__setup__()
cls.allocation_method.selection.append(('weight', 'By Weight'))
def allocate_cost_by_weight(self):
self._allocate_cost(self._get_weight_factors())
def _get_weight_factors(self):
"Return the factor for each move based on weight"
moves = [m for s in self.shipments for m in s.incoming_moves
if m.state != 'cancel']
sum_weight = Decimal(0)
weights = {}
for move in moves:
weight = Decimal(str(move.internal_weight or 0))
weights[move.id] = weight
sum_weight += weight
factors = {}
length = Decimal(len(moves))
for move in moves:
if not sum_weight:
factors[move.id] = 1 / length
else:
factors[move.id] = weights[move.id] / sum_weight
return factors
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