[rt-users] Callback question

[Brian Gallew]

First of all: callbacks are way cool.  I've used them in a number of 
places and found them to be vastly superior to copying an entire page 
and modifying it.  Unfortunately, this brings me to a problem: figuring 
out where callbacks really are being looked for.  Let me present an example.

I've created a local copy of Update.html which includes the following 
snippet of code inserted just before the end of the form:
<& /Ticket/Elements/ShowHistory ,
      Ticket => $TicketObj,
      ShowTitle => 0,
      ShowDisplayModes => 0,
      ShowTitleBarCommands => 0,
      &>


Obviously, my purpose here is to make the ticket history available to 
the commentor.  To be even more convenient, *all* I want to display are 
comments.  No priority updates, status changes, etc.  So, I then created 
$RTHOME/local/html/Callbacks/CMUQ/Ticket/Update.html/SkipTransaction.  
My thought here is that the ShowHistory element has a callback 
(SkipTransaction) which will allow me to skip all of the uninteresting 
transactions.  Sadly, it's *not* finding this file (verified by simply 
inserting syntax errors which had no effect).

Now, while it would be nice to know the correct place to do this in this 
specific case, it would be nice if there was a developer mode switch 
that I could enable that would make the Callback mechanism reveal each 
place it is looking for a callback.  Clearly this would have performance 
implications, though the reality is that if you are running in developer 
mode then your performance will already be quite poor.

Anyway, I'm running 3.6.1 on RHEL4U4.  My complete configuration 
information was attached to the message I sent 10 minutes ago about 
attachment issues.