[Koha-bugs] [Bug 26635] Expand authorised values in REST API call

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=26635

--- Comment #33 from Tomás Cohen Arazi <tomascohen at gmail.com> ---
(In reply to Martin Renvoize from comment #32)
> Hmmm, if that's the case I'm not sure I understand why there are tests for
> the search helper.. surely that will generally return multiple results?
> 
> I'm vaguely feeling like a single page web app would actually grab the full
> AV list when it first needs it and cache it locally to use for subsequent
> uses.. but as Koha isn't at that point yet we're unlikely to be able to
> really utilise that methodology..

If you need to render a list of (say) items, you will need to be able to make
the GET /items call return not only the 'damaged' attribute, but also a way to
return the linked AV, for rendering purposes.

The only thing that I'm not sure about this dev, is that (maybe) we want more
fine-grained control of what objects should have their AVs expanded. For
example, if we wanted the list of the items on a bib to display them grouped by
the library they were checked out (I know, rare example heh):

GET /biblio/123
x-koha-av-expand: true
x-koha-embed: items.checkouts

would mean we expand AVs for biblio, items, but also for the related checkouts
(a probably expensive thing, as we don't have relationships in place for
prefetching).

I would prefer a syntax that allows us to do:

GET /biblio/123
x-koha-embed: items+av,items.checkouts

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