def process_ticket(self):
        """
            fetch the ticket against the database and check its validity

            :raises ValidateError: if the ticket is not found or not valid, potentially for that
                service
            :returns: A couple (ticket, proxies list)
            :rtype: :obj:`tuple`
        """
        try:
            proxies = []
            if self.allow_proxy_ticket:
                ticket = models.Ticket.get(self.ticket, self.renew)
            else:
                ticket = models.ServiceTicket.get(self.ticket, self.renew)
            try:
                for prox in ticket.proxies.all():
                    proxies.append(prox.url)
            except AttributeError:
                pass
            if ticket.service != self.service:
                raise ValidateError(u'INVALID_SERVICE', self.service)
            return ticket, proxies
        except Ticket.DoesNotExist:
            raise ValidateError(u'INVALID_TICKET', self.ticket)
        except (ServiceTicket.DoesNotExist, ProxyTicket.DoesNotExist):
            raise ValidateError(u'INVALID_TICKET', 'ticket not found')
def process_ticket ( self ) : try : proxies = [ ] if self . allow_proxy_ticket : ticket = models . Ticket . get ( self . ticket , self . renew ) else : ticket = models . ServiceTicket . get ( self . ticket , self . renew ) try : for prox in ticket . proxies . all ( ) : proxies . append ( prox . url ) except AttributeError : pass if ticket . service != self . service : raise ValidateError ( u'INVALID_SERVICE' , self . service ) return ticket , proxies except Ticket . DoesNotExist : raise ValidateError ( u'INVALID_TICKET' , self . ticket ) except ( ServiceTicket . DoesNotExist , ProxyTicket . DoesNotExist ) : raise ValidateError ( u'INVALID_TICKET' , 'ticket not found' )
fetch the ticket against the database and check its validity

            :raises ValidateError: if the ticket is not found or not valid, potentially for that
                service
            :returns: A couple (ticket, proxies list)
            :rtype: :obj:`tuple`