first commit

modules/product_cost_warehouse/account.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 trytond.pool import PoolMeta
+from trytond.pyson import Eval
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.product.context['warehouse'] = Eval('warehouse', -1)
+        cls.product.depends.add('warehouse')