[Koha] Migrating authorities

[Thomas Klausner]

Hi!

I'm currently working on a project for the "Steiermärkischen 
Landesbibliothek" (Styria, Austria) where we are migrating a rather big 
library into Koha.

Now we've hit a problem, and I doubt that we're the first to do so, so 
I'd like to get some info on howtows/best-practice ...

Currently we get bibliographic data out of the old system in MARC21-XML. 
This also contains various authorities e.g. authors that have a GND-ID. 

When doing a simple MARC21 import these authors are not created as 
autorities. But we would very much like them to be created as such :-)

Is there anything obvious we are missing?

Do we have to first import the autorities (stage-marc-import.pl seems to 
have an option for that)? Will a later import of bibliograpic data then 
create the correct links between biblio and authority?

Or could we somehow handle this during the import of biblio-data (e.g. 
if MARC21 Field 100/0 is set, do a "find or create" on the value)?

Or do we have to write some custom scripts that extract the relevant 
MARC21 data after the biblio import, and do the creation of authorities 
etc by ourselves? Or is there a contributed script somewhere that does 
that?

I found this rather old thread:
http://koha.1045719.n5.nabble.com/Building-authority-records-after-data-migration-td5758845.html
which seems to indicate that there are no onboard Koha tools for such a 
migration. But as this post is from 2013 I hope that in the meantime 
this has changed?

Greetings,
Thomas Klausner

PS: If this topic is better suited to koha-dev, I'm happy to take the 
discussion there...


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