<?xml version="1.0" encoding="utf-8"?> <openerp> <data> <record model="ir.ui.view" id="purchase_requisition_form_inherit"> <field name="name">purchase.requisition.form</field> <field name="model">purchase.requisition</field> <field name="inherit_id" ref="purchase_requisition.view_purchase_requisition_form"/> <field name="arch" type="xml"> <xpath expr="//button[@string='Request a Quotation']" position="before"> <button name="auto_rfq_from_suppliers" type="object" string="Generate RFQs from suppliers" attrs="{'invisible': ['|',('line_ids','=',[]),('state','!=','in_progress')]}" /> </xpath> </field> </record> </data> </openerp>