Pass variable to data connector

[Peter Schober]

Mathew, Sunil via users <users at shibboleth.net> [2024-05-07 20:56 CEST]:
> Can a variable be passed from attribute definition to the data connector?
> 
> and applicationCode IN ('SHCJ')

I'm guessing the question is how to access other IdPAttributes as part
of a QueryTemplate in an DataConnector/@xsi:type="RelationalDatabase"?

The documentation provides an example for that using $resolutionContext:
https://shibboleth.atlassian.net/wiki/spaces/IDP5/pages/3199504140/RelationalDatabaseConnector#Simple-DataConnector-entirely-in-custom-syntax
so I suppose the answer lies in finding out how to walk the various
contexts to get a reference to an (arbitraty) IdPAttribute of your choice.

-peter