+<?xml version="1.0" encoding="UTF-8"?>
+<openerp>
+ <data>
+ <record id="view_vendor_payment_form" model="ir.ui.view">
+ <field name="name">account.voucher.form</field>
+ <field name="model">account.voucher</field>
+ <field name="inherit_id" ref="account_voucher.view_vendor_payment_form"/>
+ <field name="priority" eval="8"/>
+ <field name="arch" type="xml">
+ <xpath expr="//field[@name='date']" position="attributes">
+ <attribute name="required">1</attribute>
+ </xpath>
+ </field>
+ </record>
+ </data>
+</openerp>