How to show particular purchase order total price in my custom module for that particular purchase order in OpenERP

Question

How to show particular purchase order total price in my custom module I am creating a function for show amount_total in my custom module but it's not showing

def create(self, cr, uid, vals, context=None):
    if vals.get('buy_back'):
        purchase_obj=self.pool.get('purchase.order')
        sequence=self.pool.get('ir.sequence').get(cr, uid, 'purchase.order')
        new_purchase=purchase_obj.create(cr, uid, {'name':sequence,'amt_total':vals.get('amount_total')}, context=context)
        import pprint
        pprint.pprint( vals )
        print 'amount_total'
        vals['purchase_order']=new_purchase
        pprint.pprint( vals )

This is my view file

                    <field name="buy_back"/>
                    <field name="purchase_order"/>
                    <fiels name="amt_total"/>
                </xpath>

Answer 1

you can create a related field of amount_total of purchase order to show the amount_total.

Like:

when you create field

then you can make a related field like:

 'amt_total': fields.related('purchase_order', 'amount_total', type='float', string='Amount Total', store=True),

And show this field.

Hope this help