[rt-users] Changing when a custom field is validated

[alister at gossamer-threads.com]

Hi rt-users,

I have created a Custom Field 'Unit' with a new RT install.
I gave it the '(?#Mandatory).' validation regex and a possible list of 3
values.


I require this field to be filled in before it changes Queue but it seems
like it is only checked before the ticket is resolved. I can still update
Priority, change Queues, etc. the only restriction seems to be on resolving
a ticket.
I checked the mailing lists and wiki but can't find anymore information on
this.


I would like to know if I can block any changes to a ticket until this
field is validated. I was hoping I could have a scrip on the ChangeQueue
event but I can't workout how to stop a transaction. 

Has anyone done this before or know an approach I could use?




Thanks in advance,

/Alister