stock_transfer_order/models/sale_order.py

# -*- encoding: utf-8 -*-
from openerp import models, fields, api, _
from openerp.exceptions import Warning
import openerp.addons.decimal_precision as dp
from datetime import datetime
from openerp.tools import float_compare


class sale_order(models.Model):
    _inherit = 'sale.order'

    @api.one
    def action_wait(self):
        res = super(sale_order, self).action_wait()
        self.write({'state': 'progress'})
        return res