pos/barcodes_generate/demo/res_users.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2016-Today: GRAP (http://www.grap.coop)
@author Sylvain LE GAL (https://twitter.com/legalsylvain)
License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-->

<openerp><data>

    <record id="base.user_root" model="res.users">
        <field name="groups_id" eval="[(4, ref('barcodes_generate.generate_product_barcode')), (4, ref('barcodes_generate.generate_partner_barcode'))]" />
    </record>
</data></openerp>