40 lines
1.1 KiB
Python
40 lines
1.1 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 PoolMeta
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from .common import parcel_weight
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__all__ = ['Sale']
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class Sale:
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__metaclass__ = PoolMeta
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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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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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weights.append(parcel_weight(
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parcel, self.carrier.weight_uom, 'unit'))
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return context
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