[Evergreen-general] Setting Up a New Classification Scheme

[Galen Charlton]

Hi,

To build on Jason's response, since NLM call numbers were designed to be
formatted (almost) exactly like LC call numbers, the
"asset.label_normalizer_lc" normalizer should do the trick. I did a tiny
bit of empirical testing to double-check that.

Regards,

Galen

On Thu, Jun 10, 2021 at 4:55 PM Jason Boyer via Evergreen-general <
evergreen-general at list.evergreen-ils.org> wrote:

> I thought I had more about this before I hit send but I guess not. The
> point of the normalizers are to pull the call number labels apart and make
> them sort consistently, so that the case doesn’t matter and the numbers
> sort the way we expect rather than the way a computer would normally do it.
> Looking at the label_sortkey field of asset.call_number for various types
> of call numbers should make it more obvious what the existing ones are
> doing.
>
> Jason
>
> --
> Jason Boyer
> Senior System Administrator
> Equinox Open Library Initiative
> JBoyer at equinoxOLI.org
> +1 (877) Open-ILS (673-6457)
> https://equinoxOLI.org/
>
> On Jun 10, 2021, at 4:51 PM, Jason Boyer <JBoyer at equinoxOLI.org> wrote:
>
> Hi Jennifer, there isn’t an interface to manage this yet and while the
> Angular client’s auto-grid feature will allow you to see the table, you’re
> not able to add or edit any entries. One reason there’s no interface for it
> is that one of the required fields is the name of a database procedure to
> perform the necessary normalization for sorting.
>
> These are the steps you’d need to take to add a new classification scheme
> today:
>
> Look at the existing call number classification normalization functions to
> see if one of them is applicable to the new scheme:
> asset.label_normalizer_generic, asset.label_normalizer_dewey,
> and asset.label_normalizer_lc. If none of these normalizers will work for
> the new scheme a new normalizing function will need to be written. (We’ll
> assume you have to put together an asset.label_normalizer_nlm for now)
>
> Insert a new row into asset.call_number_class:
> name                         | normalizer                 | field
> National Library of Medicine | asset.label_normalizer_nlm | 060ab,(other
> fields / subfields)
>
> Then the opensrf.settings service (at least?) may need to be restarted.
> I’m not entirely certain about the extent of that.
>
> And then it’s time to test because I’ve not actually done this myself but
> I don’t believe classification schemes are hard-coded anywhere. :)
>
> Jason
>
> --
> Jason Boyer
> Senior System Administrator
> Equinox Open Library Initiative
> JBoyer at equinoxOLI.org
> +1 (877) Open-ILS (673-6457)
> https://equinoxOLI.org/
>
> On Jun 10, 2021, at 3:43 PM, Jennifer Pringle via Evergreen-general <
> evergreen-general at list.evergreen-ils.org> wrote:
>
>
> Hello everyone,
>
> I'm hoping someone can point me in the right direction for information
> about the classification schemes in Evergreen.  I've looked through the
> official docs and the Evergreen wiki but I haven't been able to find
> anything that talks about how the classifications schemes are set up or
> what would be needed to set up a new one.
>
> We've recently had a medical library join our consortium and they use
> National Library of Medicine as their classification scheme so I'm looking
> into what would be involved in adding NLM as an option in Evergreen.
>
> Thanks,
>
> Jennifer
> --
> Jennifer Pringle (she/her)
> Co-op Support - Training Lead
> BC Libraries Cooperative
> Toll-free: 1-888-848-9250
> Email:jennifer.pringle at bc.libraries.coop
> <jennifer.pringle at bc.libraries.coop>
> Website: http://bc.libraries.coop
>
> Gratefully acknowledging that I live and work in the unceded Traditional
> Territory of the St'at'yemc Nations.
>
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-- 
Galen Charlton
Implementation and IT Manager
Equinox Open Library Initiative
gmc at equinoxOLI.org
https://www.equinoxOLI.org
phone: 877-OPEN-ILS (673-6457)
direct: 770-709-5581
<http://evergreen-ils.org>
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