Add module sale_order_route

sale_order_route/models/__init__.py

@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+
+from . import sale_order

sale_order_route/models/sale_order.py

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+# Copyright 2019 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    route_id = fields.Many2one(
+        'stock.location.route', string='Route',
+        ondelete='restrict', readonly=True,
+        states={'draft': [('readonly', False)], 'sent': [('readonly', False)]},
+        domain=[('sale_selectable', '=', True)])
+
+    def _action_confirm(self):
+        for order in self.filtered(lambda o: o.route_id):
+            order.order_line.filtered(
+                lambda l: l.product_id.type in ('product', 'consu')).write(
+                    {'route_id': order.route_id.id})
+        super(SaleOrder, self)._action_confirm()