<odoo noupdate="1">
    <record forcecreate="True" id="property_extra_hourly" model="ir.property">
        <field name="name">property_extra_hourly</field>
        <field name="fields_id" search="[('model','=','product.template'),('name','=','extra_hourly')]"/>
        <field name="value" model="product.template" eval="obj().env.company.extra_hour"/>
        <field name="type">float</field>
    </record>
    <record forcecreate="True" id="property_extra_daily" model="ir.property">
        <field name="name">property_extra_daily</field>
        <field name="fields_id" search="[('model','=','product.template'),('name','=','extra_daily')]"/>
        <field name="value" model="product.template" eval="obj().env.company.extra_day"/>
        <field name="type">float</field>
    </record>
</odoo>
