# How to add a reduction amount to the amount total in POS order

By
Matthieu
on 5/9/16, 5:32 AM 873 views

Hello,

I'm currently trying to add my attribute "coupon_nb" (the amount of reduction given to a customer) to the amount total in pos.order.

My code is here :

 pos.order.inherit pos.order
Here I have loyalty_points and coupon_nb that are visible.

But I want coupon_nb to be used to calculate the amount total.

Here you can see the result :

http://i.imgur.com/yGbwoSN.png

But as you can see here,  the amount total doesn't change at all :

http://i.imgur.com/NMcc8TE.png

I failed, the right python code is this : class pos_order(osv.osv): _inherit = 'pos.order' _columns = { 'loyalty_points': fields.float('Loyalty Points', help='The amount of Loyalty points the customer won or lost with this order'), 'coupon_nb': fields.float('Coupon Reduction', help='Coupon amount reduction'), } def _order_fields(self, cr, uid, ui_order, context=None): fields = super(pos_order,self)._order_fields(cr,uid,ui_order,context) fields['loyalty_points'] = ui_order.get('loyalty_points',0) fields['coupon_nb'] = ui_order.get('coupon_nb',0) return fields def _amount_all(self, cr, uid, ids, field_name, arg, context=None): res = super(sale_order, self)._amount_all(cr, uid, ids, field_name, arg, context) for order in self.browse(cr, uid, ids, context=context): res[order.id]['amount_total'] += order.amount_total + order.coupon_nb return res def create_from_ui(self, cr, uid, orders, context=None): ids = super(pos_order,self).create_from_ui(cr,uid,orders,context=context) for order in orders: if order['data']['coupon_nb'] != 0: orderT = self.pool.get('pos.order').browse(cr, uid, ids, context=context) orderT.write({'coupon_nb': order['data']['coupon_nb']}) if order['data']['loyalty_points'] != 0 and order['data']['partner_id']: partner = self.pool.get('res.partner').browse(cr,uid,order['data']['partner_id'], context=context) partner.write({'loyalty_points': partner['loyalty_points'] + order['data']['loyalty_points']}) return ids

Matthieu
on 5/9/16, 5:43 AM

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 Asked: 5/9/16, 5:32 AM Seen: 873 times Last updated: 5/9/16, 5:41 AM