first commit

modules/commission/stock_reporting_margin.py

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+# 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 sql.aggregate import Sum
+from sql.conditionals import Coalesce
+
+from trytond.model import fields
+from trytond.pool import Pool, PoolMeta
+from trytond.transaction import Transaction
+
+
+class AbstractCommissionMixin:
+    __slots__ = ()
+
+    @classmethod
+    def _column_cost(cls, tables, withs, sign):
+        pool = Pool()
+        Move = pool.get('stock.move')
+        move = tables['move']
+        cost = super()._column_cost(tables, withs, sign)
+        if (Transaction().context.get('include_commission')
+                and 'commission_price' in Move._fields):
+            cost -= Sum(
+                sign * cls.cost.sql_cast(move.internal_quantity)
+                * Coalesce(move.commission_price, 0))
+        return cost
+
+
+class Context(metaclass=PoolMeta):
+    __name__ = 'stock.reporting.margin.context'
+
+    include_commission = fields.Boolean("Include Commission")
+
+    @classmethod
+    def default_include_commission(cls):
+        return Transaction().context.get('include_commission', False)