50 lines
1.6 KiB
Python
50 lines
1.6 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 functools import partial
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from itertools import groupby
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from trytond.pool import Pool, PoolMeta
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__all__ = ['Sale']
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__metaclass__ = PoolMeta
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class Sale:
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__name__ = 'sale.sale'
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def _group_parcel_key(self, lines, line):
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"""
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The key to group lines by parcel
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"""
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return None
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def _get_carrier_context(self):
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Uom = Pool().get('product.uom')
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context = super(Sale, self)._get_carrier_context()
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if self.carrier.carrier_cost_method != 'weight':
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return context
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context = context.copy()
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weights = []
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context['weights'] = weights
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lines = self.lines or []
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keyfunc = partial(self._group_parcel_key, lines)
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lines = sorted(lines, key=keyfunc)
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for key, parcel in groupby(lines, key=keyfunc):
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weight = 0
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for line in parcel:
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if (getattr(line, 'product', None)
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and getattr(line, 'quantity', None)
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and getattr(line, 'unit', None)):
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quantity = Uom.compute_qty(line.unit, line.quantity,
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line.product.default_uom, round=False)
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if line.product.weight:
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weight += Uom.compute_qty(line.product.weight_uom,
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line.product.weight * quantity,
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self.carrier.weight_uom, round=False)
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weights.append(weight)
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return context
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