[Koha-bugs] [Bug 11232] Retrieve facets from Zebra

bugzilla-daemon at bugs.koha-community.org bugzilla-daemon at bugs.koha-community.org
Mon Sep 22 03:39:43 CEST 2014


http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=11232

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

           What    |Removed                     |Added
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  Attachment #31785|0                           |1
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--- Comment #72 from David Cook <dcook at prosentient.com.au> ---
Created attachment 31799
  -->
http://bugs.koha-community.org/bugzilla3/attachment.cgi?id=31799&action=edit
Bug 11232: retrieve facets from Zebra's indexes in DOM

This patch adds the following routines to C4::Search

- GetFacets
   This is a wrapper routine, that given a ZOOM::ResultSet, extracts
   the relevant facets. To do the job, it uses the internal functions:
   _get_facets_from_records and _get_facets_from_zebra. The choice is done
   on querying the indexing mode: grs1 will use records, and dom zebra's
facets.
- _get_facets_from_records
   Just refactoring the already existent main loop from getRecords into a
function.
- _get_facets_from_zebra
   Given a result set, loop through all defined facets in C4::Koha::getFacets
   and call _get_facet_from_result_set for each, to build the facets
   information. It retrieves the facets from Zebra's facets.
- _get_facet_from_result_set
   Given a result set and a facet index name, retrieve the facets
   for the given index, and build the result for rendering.

To test this preliminay work:
- Apply the patches, install on DOM, using MARC21, NORMARC and UNIMARC.
- Reindex some DB with lots of records.
- Check facets work.

Note: UNIMARC is the only dialect that has more than one subfield
(concatenated)
for facets values, so it is better to test on uNIMARC. The approach leaves room
for re-thinking facets in MARC21/NORMARC, but it is outside of the scope of the
bug
(e.g. we could have more author facets)

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: David Cook <dcook at prosentient.com.au>

Seems to work with DOM and MARC21.

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