[Archivesspace_Users_Group] Parallel Expressions in Extents

[Brian Hoffman]

Hi Maura,

You are on the right track, but your path should just be ‘frontend/views’ rather than ‘frontend/app/views’.

If you make that change your templates will take effect. There are some other issues with the plugin though - you’re trying to add a new field to the extent schema and to add a new enumeration ‘extent_extent_type_parallel’. Both of those changes require corresponding changes to the database. You’ll need to write a migration that adds those two fields to the extent table, and that creates the enumeration.

Here’s a plugin that has lots of migrations you can use as a guide:

https://github.com/hudmol/yale_containers

Brian




On Apr 3, 2015, at 10:36 AM, Maura Carbone <mauraa at brandeis.edu> wrote:

> Hmm, I suppose it would depend on how you want it formatted. I admit I'm no an archivist and so I'm not familiar with how thing 'should' look according to DACS. One option would be to keep the 'main' part of the extent as the extent label and then include the second part in a physical details note, although it doesn't seem that that note gets displayed on the public page. You could modify the display for that part of the page if you wanted it to show.
> 
> The only other option I could think of would be to create a plugin that allows for a second parallel statement where things are displayed 1st Statement (2nd Statement). You'd have to modify a number of files -- I took a crack at it but I think I might have done something wrong as it doesn't appear to be rendering. Does anyone know if a plugin is incorrectly written do we get an error or does the system just load the defaults? If anyone wants to take a look feel free! I don't know ruby that well and also might be missing some files needed to make it happen.
> 
> -Maura
> 
> 
> 
> On Thu, Apr 2, 2015 at 9:59 AM, Joshua D. Shaw <Joshua.D.Shaw at dartmouth.edu> wrote:
> Hi Maura-
> 
> I should have been a bit clearer in my first post. The problem that I see is that when you have one or more parallel expressions of extent there's no obvious way to enter what are otherwise legal DACS extent expressions. The best example I can come up with is:
> 
> 1 transcript (782 pages)
> 10 boxes (15 linear ft.)
> 
> There's no container in the transcript expression, nor is there a dimension or physical detail specified. That leaves us with two parallel extents statements: a) 1 transcript & b) 782 pages. It appears that we would have to enter these as two separate extent instances in AS. Now that's fine if there are only these two statements and we mark both as "whole" for the portion. However, what happens when you mix in the other extent expression: 10 boxes (15 linear ft.)? There is no way to link the extents that are parallel expressions since you would essentially have something like:
> 
> Extent 1: Portion, 1, transcript
> Extent 2: Portion, 782, pages
> Extent 3: Portion, 15, linear ft. with "container summary" set to: 25 boxes
> 
> Its impossible (at least from a scripting perspective and hence MARC export) to be certain that Extent 1 & Extent 2 are parallel expressions. Does that explain the issue more? I'm hoping I'm missing something simple!
> 
> Thanks!
> Joshua
> 
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> -- 
> Maura Carbone
> Digital Initiatives Librarian
> Brandeis University
> Library and Technology Services
> (781) 736-4659
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