[Koha-bugs] [Bug 23828] Elasticsearch - ES - Authority record results not ordered correctly

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23828

--- Comment #3 from Nick Clemens <nick at bywatersolutions.com> ---
Created attachment 110176
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=110176&action=edit
Bug 23828: Elasticsearch - Preserve record order when combining subfield in
mappings

Currently if you combine subfields in the marc mappings the subfields are
indexed in the order
listed in the mapping.

i.e. 650(avxyz) in mapping

and in record:
650 $aHeading $zGeosubdiv $vFormsubdiv

is indexed as:
Heading Formsubdiv Geosubdiv

We should preserve the order and index as:
Heading Geosubdiv Formsubdiv

We can use built in function in Marc::Field to achieve this

To test:
 1 - It is easy to find examples of this using authorities
 2 - Find or create a record with subfields order azv
     e.g. 150$aActresses$zUnited states$vBiography
 3 - Add or have a second authority
     e.g. 150$aActresses$vPortraits
 4 - Set an authorities mapping for 'Heading' to 150(abgvxyz)
     find at:
     Administration->Search engine configuration (Elasticsearch)->Authorities
tab
 5 - Index the records in Elasticsearch
     perl misc/search_tools/rebuild_elaticsearch.pl -a -ai 1691 -ai 1692
 6 - View the first record in the ES index
     curl es:9200/koha_kohadev_authorities/data/1692?pretty
 7 - Note 'Heading' field is ordered as in the mapping
 8 - Search authorities for 'contains' "act"
 9 - Note the records sort incorrectly
10 - Apply patches
11 - perl misc/search_tools/rebuild_elaticsearch.pl -a -ai 1692
12 - curl es:9200/koha_kohadev_authorities/data/1692?pretty
13 - Note the order is now preserved
14 - Search authorities for 'contains' "act"
15 - Note the records sort correctly

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