[rt-users] Pulling custom field values from an external source

[Joel Schuweiler]

When extending RT::CustomFieldValues::External is it possible to find out which ticket this instance of the custom field applies to? For example, the values I want to show depend on who is added as requestors on the ticket. I looked at $self, but I can't seem to find anything that would reference me back to the ticket.

-Joel
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