[Koha-bugs] [Bug 27087] Allow encoding level comparison on record import

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=27087

--- Comment #2 from Andrew Fuerste-Henry <andrew at bywatersolutions.com> ---
So maybe a broader move to allow match checks to use a comparison other than
equals? So we'd set a target subfield in the incoming record, a target subfield
in the existing record, and a comparison operator?

But the values on the encoding level aren't strictly numeric. "#" is the "best"
value, followed by 1-8, then "u" for unknown and "z" for not applicable
(https://www.loc.gov/marc/bibliographic/bdleader.html). We could hardcode that
hierarchy for encoding level, but it seems likely other bits of MARC have
comparably idiosyncratic sets of values. Should the match check setup include a
mechanism for telling Koha an order of preference for possible values?

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