'Broadcast the message to all the partner since'

@api.multi
def _notify_by_chat(self, message):

    message_values = message.message_format()[0]
    notifications = []
    for partner in self:
        notifications.append([(self._cr.dbname, 'ir.needaction', partner.id), dict(message_values)])
    self.env['bus.bus'].sendmany(notifications)
