1.检查业务逻辑中的错误，终止代码执行，显示错误或警告信息：

　raise osv.except_osv(_('Error!'), _('Error Message.'))

示例代码：

#删除当前销售单，需要验证销售单的状态    def unlink(self, cr, uid, ids, context=None):        for rec in self.browse(cr, uid, ids, context=context):            if rec.state not in ['draft']:                raise osv.except_osv(_(u'警告!'),_(u'您不能删除以下状态的销售单 %s .')%(rec.state))            if rec.create_uid.id != uid:                raise osv.except_osv(_(u'警告!'),_(u'您不能删除他人创建的单据.'))        return super(sale, self).unlink(cr, uid, ids, context)

2.字段的 onchange 事件中返回值，同时返回提示信息：

　warning = {

　　'title': _('Warning!'),

　　'message' : _('Warning Message.')

　　}

　return {'warning': warning, 'value': value}

示例代码：

@api.onchange('partner_id')    def onchange_partner_id_warning(self):        if not self.partner_id:            return        warning = {}        title = False        message = False        partner = self.partner_id        # If partner has no warning, check its company        if partner.sale_warn == 'no-message' and partner.parent_id:            partner = partner.parent_id        if partner.sale_warn != 'no-message':            # Block if partner only has warning but parent company is blocked            if partner.sale_warn != 'block' and partner.parent_id and partner.parent_id.sale_warn == 'block':                partner = partner.parent_id            title = ("Warning for %s") % partner.name            message = partner.sale_warn_msg            warning = {                    'title': title,                    'message': message,            }            if partner.sale_warn == 'block':                self.update({
    'partner_id': False, 'partner_invoice_id': False, 'partner_shipping_id': False, 'pricelist_id': False})                return {
   'warning': warning}        if warning:            return {
   'warning': warning}

 

3.视图中 button 按钮点击时显示确认信息：【直接加上"confirm"属性，就可以实现，点击按钮的时候，弹出窗口，提示“是否确认操作”的提示框】

　<button name="cancel_voucher" string="Cancel Voucher" type="object" states="posted" confirm="Are you sure you want to unreconcile this record?"/>

 

相关参考：

http://www.cnblogs.com/cnshen/p/3205405.html