[Koha-bugs] [Bug 24807] New: Add "year" type to improve sorting by publication date

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=24807

            Bug ID: 24807
           Summary: Add "year" type to improve sorting by publication date
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Searching - Elasticsearch
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: glasklas at gmail.com

When sorting on date-of-publication (a year, field 008, positions 7-10), the
current behavior when the field contains an invalid year (containing word
characters like "uuuu" or just whitespace), these results appear first when
sorting in descending order. Invalid values like these should really not be
indexed at all. If so (having null values instead) they will always appear last
when sorting, regardless of sort order. This fix adds a "year" search field
type, that will reject any non-year values, resulting in a more user friendly
sorting behavior.

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