Add module sale_agent

sale_agent/models/res_partner.py

@@ -0,0 +1,15 @@
+# Copyright 2024 Akretion France (https://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = 'res.partner'
+
+    agent = fields.Boolean()
+    # agent_id is only displayed on parent partner
+    # on sale.order and invoice, it uses commercial_partner_id.agent_id.id
+    agent_id = fields.Many2one(
+        'res.partner', domain=[('agent', '=', True)], ondelete='restrict', copy=False)