[rt-users] Suppressing method error messages

Ruslan U. Zakirov Ruslan.Zakirov at acronis.com
Fri Oct 22 14:26:16 EDT 2004

Mike Friedman wrote:
> On Fri, 22 Oct 2004 at 21:31 (+0400), Ruslan U. Zakirov wrote:
>>Mike Friedman wrote:
>>>Is there an easy way, in a perl script, to suppress error messages written
>>>by RT methods to STDERR?  For example, inside a loop, I have something
>>>like this:
>>>  $TicketNumber = $TicketObj->Load($i);
>>>  next unless (defined $TicketNumber);
>>Why don't you RT::Tickets object instead?
> I'm using an RT::Ticket object, $TicketObj is just a loop variable whose
> value is such an object.  I need the RT::Ticket->Load method in order to
> load a specific ticket number(*).  (I don't see a Load method in
> RT::Tickets, only in RT::Ticket).
> (*) Because the purpose of this script is to run through a range of
> tickets looking only for those that have status 'deleted'.  Which means I
Same problem in RTx::Shredder that's why I ship it with patch. Didn't 
envestigate other variants.

> can't use LimitStatus, for example, because it won't return deleted
> tickets.
> Looking in the source for Ticket_Overlay.pm, I see where it is writing out
> error messages.  It's those messages I want to suppress.  The docs say
> that if the specified ticket number doesn't exist, 'undef' is returned,
> which is true and that's all I need.  I don't want an error message to
> appear;  I'll just terminate my loop silently in that case.
> As it happens, I have found a workaraound, using perl facilities.  I dup
> the STDERR filehandle, save its destination, temporarily open STDERR as
> /dev/null and then reset the original destination for STDERR when I am no
> longer using Ticket->Load.  But this approach could get ugly in other
> scripts, where I might be writing my own error messages even as I'm also
> using the Ticket->Load method.
> Mike
> ------------------------------------------------------------------------------
> Mike Friedman                             System and Network Security
> mikef at ack.Berkeley.EDU                    2484 Shattuck Avenue
> 1-510-642-1410                            University of California at Berkeley
> http://ack.Berkeley.EDU/~mikef            http://security.berkeley.edu
> ------------------------------------------------------------------------------

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