OpenERP电子邮件发送确认消息显示

请帮助我更新以下给定的发送电子邮件方法，以便根据电子邮件发送情况弹出

• “电子邮件已发送”

• “抱歉，此时尚未发送电子邮件
  ------------------------------------------------------ 向导验证和发送 ------------------------------------------------------

def send_mail(self, cr, uid, ids, context=None):
""" Process the wizard content and proceed with sending the related
    email(s), rendering any template patterns on the fly if needed. """
if context is None:
    context = {}
ir_attachment_obj = self.pool.get('ir.attachment')
active_ids = context.get('active_ids')
is_log = context.get('mail_compose_log', False)

for wizard in self.browse(cr, uid, ids, context=context):
    mass_mail_mode = wizard.composition_mode == 'mass_mail'
    active_model_pool_name = wizard.model if wizard.model else 'mail.thread'
    active_model_pool = self.pool.get(active_model_pool_name)

    # wizard works in batch mode: [res_id] or active_ids
    res_ids = active_ids if mass_mail_mode and wizard.model and active_ids else [wizard.res_id]
    for res_id in res_ids:
        # mail.message values, according to the wizard options
        post_values = {
            'subject': wizard.subject,
            'body': wizard.body,
            'parent_id': wizard.parent_id and wizard.parent_id.id,
            'partner_ids': [partner.id for partner in wizard.partner_ids],
            'attachment_ids': [attach.id for attach in wizard.attachment_ids],
        }
        # mass mailing: render and override default values
        if mass_mail_mode and wizard.model:
            email_dict = self.render_message(cr, uid, wizard, res_id, context=context)
            post_values['partner_ids'] += email_dict.pop('partner_ids', [])
            post_values['attachments'] = email_dict.pop('attachments', [])
            attachment_ids = []
            for attach_id in post_values.pop('attachment_ids'):
                new_attach_id = ir_attachment_obj.copy(cr, uid, attach_id, {'res_model': self._name, 'res_id': wizard.id}, context=context)
                attachment_ids.append(new_attach_id)
            post_values['attachment_ids'] = attachment_ids
            post_values.update(email_dict)
        # post the message
        subtype = 'mail.mt_comment'
        if is_log:  # log a note: subtype is False
            subtype = False
        elif mass_mail_mode:  # mass mail: is a log pushed to recipients, author not added
            subtype = False
            context = dict(context, mail_create_nosubscribe=True)  # add context key to avoid subscribing the author
        msg_id = active_model_pool.message_post(cr, uid, [res_id], type='comment', subtype=subtype, context=context, **post_values)
        # mass_mailing: notify specific partners, because subtype was False, and no-one was notified
        if mass_mail_mode and post_values['partner_ids']:
            self.pool.get('mail.notification')._notify(cr, uid, msg_id, post_values['partner_ids'], context=context)

return {'type': 'ir.actions.act_window_close'}