[Koha-bugs] [Bug 5572] refinements to function merge sub merge in C4::AuthoritiesMarc

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

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=5572

Jared Camins-Esakov <jcamins at cpbibliography.com> changed:

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                 CC|                            |jcamins at cpbibliography.com

--- Comment #20 from Jared Camins-Esakov <jcamins at cpbibliography.com> ---
(In reply to comment #2)
> (In reply to comment #1)
> > Tested your patch: it works as described.
> > I see your point when you should clear a subfield at the authority side and you
> > want to see the same at the biblio side. [How often would that happen?]
> 
> Well, me myself was not convinced that it happens and that such a refinement
> is  is necessary--it was the library staff that told me it really happens
> sometimes and demanded to make Koha to behave like described in the
> proposal.  It does not happen often perhaps, but if it happens then the
> staff would have to edit even hundreds of biblio records by hand without
> this refinement.
> 
> > However, if the subfield was already empty at the authority side and you update
> > the auth record, do you also want to clear at that moment any possible info in
> > that subfield at the biblio side?
> 
> Yes, because I was told this exactly means that the set of subfields of a
> field in biblio is *controlled* by the authority record.  In other words, if
> a subfield can have a value in authority (in Koha: it is not in 'ignored'
> state), then you are not supposed to edit it by hand in biblio.  I do not
> know if it is really so--I was told that.

I do not think this is correct. Subfield 'e' is not authority-controlled, but
Koha treats all non-numeric subfields in authority-controlled fields as if they
are. Or am I misunderstanding what this bug does, and there is a workaround for
this?

> 
> > Does an empty authority subfield that is "not in the ignore tab" in the
> > framework, really mean that that subfield should always be empty too at the
> > biblio side? I am not sure about that; I will copy this comment to the Koha
> > list for possible further discussion.
> 
> At least this is what I was told.  This means of course that with my
> refinement you have to carefully check which subfields are active in the
> authority framework, in order not to delete what you do not intend to.
> 
> I will appreciate any comments.  For now this is what was needed in my
> library.  I thought it worth to share this with others.

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