columns={'expr_date':fields.selection('Expire Date'),}

def product_id_change(self, cr, uid, ids, pricelist, product, qty=0,uom=False, qty_uos=0, uos=False, name='', partner_id=False,lang=False, update_tax=True, date_order=False, packaging=False, fiscal_position=False, flag=False, context=None): res = super(royalfood_sale_order_line, self).product_id_change(cr, uid, ids, pricelist, product, qty=qty, uom=uom, qty_uos=qty_uos, uos=uos, name=name, partner_id=partner_id, lang=lang, update_tax=update_tax, date_order=date_order, packaging=packaging, fiscal_position=fiscal_position, flag=flag, context=context) if product: ids=[] ids=self.pool.get('stock.move').search(cr, uid,[('product_id', '=', product)])