Sale - Override action_button_confirm()

Question

I need to override the  action_button_confirm  method  from the sales.order model, but i can't make the inheritance work. It seems that this code is never called during execution.
I'ḿ using odoo  8.0. The module is installed and depends on sale module.

# -*- coding: utf-8 -*-
from openerp import models, fields, api
import logging
_logger =logging.getLogger(__name__)
class sales_warning(models.Model):
_inherit = "sale.order"
@api.multi
def action_button_confirm(self):
_logger.info("begin overwri

Hilar Andikkadavath · Accepted Answer

HI,
here is an example of action_button_override:
class sale_order(models.Model):
_inherit = 'sale.order'
@api.multi
def action_button_confirm(self):
zero_price = [x.product_id.name for x in self.order_line if not x.price_unit]
if zero_price:
message= _( "Please specify unit price for the following products:" ) + ' 
 '
message += ' 
 ' .join(map(str , zero_price))
raise Warning(message.rstrip())
return super(sale_order , self).action_button_confirm()

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