odoo 表单求和

 

<record id="stock_picking_add_quantity" model="ir.ui.view"><!--交货单加数量合计-->
        <field name="name">stock_picking_add_quantity</field>
        <field name="model">stock.picking</field>
        <field name="inherit_id" ref="stock.view_picking_form"/>
        <field name="arch" type="xml">
            <xpath expr="//field[@name='pack_operation_product_ids']/tree/field[@name='qty_done']" position="replace">
                <field name="qty_done" sum="已完成数量总计"/>
            </xpath>
        </field>
    </record>