AutoCreateAuthorities builds a brand-new authority record whenever a bib
subject heading (6XX) has no match, but always lets the record fall back
to C4::AuthoritiesMarc::AddAuthority()'s default 008/040, which hardcodes
008 position 11 ("Subject heading system/thesaurus") to 'a' (LCSH) no
matter what thesaurus the source heading actually uses. This is the first
step towards fixing that.
Adds two things to Koha::Authority:
- $MARC21_THESAURUS_TO_CONTROL_FIELD_008_11: a single-source-of-truth
lookup mapping a thesaurus name (as already derived by C4::Heading from
MARC indicator 2 / subfield $2, e.g. 'lcsh', 'mesh', or a raw $2 code
such as 'fast') to its MARC21 authority 008/11 code, per the LOC ad008
code list. This table previously only existed once, for a different
purpose, in Koha::SearchEngine::Elasticsearch::QueryBuilder (used for
building thesaurus search queries) - it's promoted here so both that
and the authority-creation fix that follows can read from one place
instead of two copies that can silently drift apart.
- default_marc21_008($thesaurus): builds the default 34-character body of
a new MARC21 authority's 008 field, honouring the
MARCAuthorityControlField008 system preference. When $thesaurus is
given, position 11 is set from the table above instead of whatever the
default/syspref value carries, falling back to 'z' (Other) for a
thesaurus with no dedicated code.
AddAuthority() is refactored to build its own (thesaurus-less, LCSH
default) 008 via this new method too, replacing its previous inline copy
of the same defaulting logic - pure refactor, no behaviour change.
Nothing thesaurus-aware calls it yet.
Sponsored-by: Heythrop Library <https://heythroplibrary.co.uk/>
Signed-off-by: Clemens Gresser <cgresser@jesuit.org.uk>
Signed-off-by: Phil Ringnalda <phil@chetcolibrary.org>
Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Pedro Amorim <pedro.amorim@openfifth.co.uk>
4bfb9abc68
