[Rt-devel] Looking up a ticket by attachment's messageid

[Gordon Messmer]

Since the MessageId is stored in a field in the Attachments table, I 
assume that someone thought it'd be useful to be able to search on that 
field.  However, I don't see any API function that allows us to look up 
an attachment by messageid, or a ticket by an associated attachment's 
messageid.

What's the easiest way to go about introducing such a function?  I 
presume I'd create a "Tickets_Local.pm" file and create the appropriate 
function.  Is there an existing function that can perform this query?