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modules/production_routing/routing.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 (
+    DeactivableMixin, ModelSQL, ModelView, fields, sequence_ordered)
+
+
+class Routing(DeactivableMixin, ModelSQL, ModelView):
+    __name__ = 'production.routing'
+    name = fields.Char('Name', required=True, translate=True)
+    steps = fields.One2Many('production.routing.step', 'routing', 'Steps')
+    boms = fields.Many2Many(
+        'production.routing-production.bom', 'routing', 'bom', 'BOMs')
+
+
+class RoutingOperation(DeactivableMixin, ModelSQL, ModelView):
+    __name__ = 'production.routing.operation'
+    name = fields.Char('Operation', required=True, translate=True)
+
+
+class RoutingStep(sequence_ordered(), ModelSQL, ModelView):
+    __name__ = 'production.routing.step'
+    operation = fields.Many2One('production.routing.operation', 'Operation',
+        required=True)
+    routing = fields.Many2One('production.routing', 'Routing', required=True,
+        ondelete='CASCADE')
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.__access__.add('routing')
+
+    def get_rec_name(self, name):
+        return self.operation.rec_name
+
+    @classmethod
+    def search_rec_name(cls, name, clause):
+        return [('operation.rec_name',) + tuple(clause[1:])]
+
+
+class Routing_BOM(ModelSQL):
+    __name__ = 'production.routing-production.bom'
+    routing = fields.Many2One(
+        'production.routing', "Routing", required=True, ondelete='CASCADE')
+    bom = fields.Many2One(
+        'production.bom', "BOM", required=True, ondelete='CASCADE')