python - OpenERP add column to treeView -

im trying show new column in treeview purchase.order.tree.

my goal is, becosue have product, orders have 1 product quantity number, how show quantity in treeview purchase.order.tree ?

any ideas ?

you'll have override original view , add new field, on example overriding account.invoice:

    <record model="ir.ui.view" id="new_invoice_tree">         <field name="name">mymodule.account.invoice.tree</field>         <field name="model">account.invoice</field>         <field name="inherit_id" ref="account.invoice_tree"/>         <field name="arch" type="xml">             <field name="name" position="after">                 <field name="quantity"/>             </field>         </field>     </record> 

just make sure inherit_id referencing original view , set correct model on name="model"