<?xml version="1.0" encoding="UTF-8"?> <odoo> <record id="view_partner_form" model="ir.ui.view"> <field name="name">Make partner reference readonly when non-commercial</field> <field name="model">res.partner</field> <field name="inherit_id" ref="base.view_partner_form"/> <field name="arch" type="xml"> <field name="ref" position="attributes"> <attribute name="attrs">{'readonly': [('is_company', '=', False), ('parent_id', '!=', False)]}</attribute> </field> </field> </record> </odoo>