[Koha-bugs] [Bug 12430] Search truncation disables relevance ranking

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=12430

David Cook <dcook at prosentient.com.au> changed:

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--- Comment #64 from David Cook <dcook at prosentient.com.au> ---
Created attachment 114129
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https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=114129&action=edit
Bug 12430: Force relevance ranking when not using QueryParser

The system preference "QueryWeightFields" is mutually exclusive with
the system preference "QueryAutoTruncate" and the * truncation
modifier, when not using QueryParser.

If you use truncation, relevance won't work anymore. (N.B. Relevance
doesn't work probably when using QueryParser, but for a very different
reason beyond the current scope of this bug.)

This patch adds relevance ranking when using truncation (or basically
when QueryWeightFields is disabled).

_TEST PLAN_

0) Use koha-testing-docker
1) Ensure that "QueryWeightFields" is enabled and "QueryAutoTruncate" is set to
auto
2) Go to http://localhost:8080/cgi-bin/koha/opac-search.pl?q=e
3) Note that the results are ordered by biblionumber ascending

4) Apply patch

5) Go to http://localhost:8080/cgi-bin/koha/opac-search.pl?q=e
6) Note that the results are not ordered by biblionumber ascending
(presumably they are in relevance order)

If you edit /etc/koha/sites/kohadev/koha-conf.xml and add "requests"
to the end of "zebra_loglevels", uncomment that option, and carefully
restart Zebra, you should be able to see the following in
/var/log/koha/kohadev/zebra-output.log:

Search biblios OK 394 1 1+0 RPN @attrset Bib-1 @attr 1=1016 @attr 4=6 @attr 5=1
@attr 2=102 e

The 2=102 indicates a relevance search.

Signed-off-by: Victor Grousset/tuxayo <victor at tuxayo.net>

Signed-off-by: Katrin Fischer <katrin.fischer.83 at web.de>

Signed-off-by: Katrin Fischer <katrin.fischer.83 at web.de>

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