[Koha-bugs] [Bug 24807] 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

--- Comment #9 from Nick Clemens <nick at bywatersolutions.com> ---
(In reply to David Gustafsson from comment #7)
> Hi! Sorry about the late reply. Thank you very much for considering my
> patch. I am a little bit unfamiliar with conventions with regards to marc
> record dates and did not anything like c1964 in my testing data, is "c" in
> this case for copyright? Is "u" some kind of convention that should have a
> special case? I think there is another callback option "value_callbacks"
> that can be used for preprocessing values before filtering, for example
> replace "u" with "0", and strip other characters. I can update the patch
> using this approach later today, I think it is a little bit semantically to
> perform filtering and transformation in different steps.

There are more fields than just the 008 that can contain 'year' - pubdate and
copydate are the main two used in koha 008/264c/260c

The u is unknown, it is documented in the MARC:
https://www.loc.gov/marc/bibliographic/bd008a.html search for (195u)

The c is copyright we can also have p or ranges etc., documented here:
https://www.oclc.org/bibformats/en/2xx/264.html#subfieldc

-- 
You are receiving this mail because:
You are watching all bug changes.