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modules/production_routing/product.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.model import fields
+from trytond.pool import PoolMeta
+from trytond.pyson import Eval
+
+
+class ProductBom(metaclass=PoolMeta):
+    __name__ = 'product.product-production.bom'
+    routing = fields.Many2One(
+        'production.routing', "Routing", ondelete='CASCADE',
+        domain=[
+            ('boms', '=', Eval('bom', 0)),
+            ])
+
+
+class ProductionLeadTime(metaclass=PoolMeta):
+    __name__ = 'production.lead_time'
+    routing = fields.Many2One('production.routing', 'Routing',
+        ondelete='CASCADE',
+        domain=[
+            ('boms', '=', Eval('bom', 0)),
+            ])