hr_timesheet_computation_overtime/views/hr_overtime_request_views.xml
<?xml version="1.0" encoding="utf-8" ?>
<!-- Copyright 2018 OpenSynergy Indonesia
Copyright 2020 PT. Simetri Sinergi Indonesia
License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
<openerp>
<data>
<record id="hr_overtime_request_view_form" model="ir.ui.view">
<field name="name">hr.overtime_request form</field>
<field name="model">hr.overtime_request</field>
<field
name="inherit_id"
ref="hr_attendance_overtime_request.hr_overtime_request_view_form"
/>
<field name="arch" type="xml">
<data>
<xpath expr="//field[@name='employee_id']" position="after">
<field name="sheet_id" groups="base.group_system" />
</xpath>
<xpath expr="//field[@name='state']" position="before">
<button
name="button_link_to_timesheet"
string="Link to Timesheet"
type="object"
attrs="{'invisible':['|',('state','not in',['draft','confirm']),('sheet_id','!=',False)]}"
/>
</xpath>
</data>
</field>
</record>
</data>
</openerp>