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Re: Specifying both item's @id and @value for collections

From: Vagif Abilov <vagif.abilov@gmail.com>
Date: Fri, 27 Jun 2014 11:07:13 +0200
Message-ID: <CA+xi7+195RmS+YPBEy2Kxv8Z_bH8xp7OW8EU2q4WH+E_4ySk6Q@mail.gmail.com>
To: Markus Lanthaler <markus.lanthaler@gmx.net>
Cc: public-hydra@w3.org
Hi Markus,

Thank you for a quick response. You are right about using hydra:Collection,
I used localhost just for an example. When it comes to the main topic, I
wanted to attach a unique IRI to a primitive value (string) in the user
interface. Now that you questioned that I suspect I should rethink my
motivation. Perhaps if I really want to enrich my data with IRIs then I
should revise them not to be represented by primitive types. Thanks for
pointing this out.

Vagif


On Thu, Jun 26, 2014 at 2:19 PM, Markus Lanthaler <markus.lanthaler@gmx.net>
wrote:

> Hi Vagif,
>
> On Wednesday, June 25, 2014 3:35 PM, Vagif Abilov wrote:
> > I have a list of items ("interests") as a part of a JSON-LD document:
> >
> > {
> >     "@context": {
> >       "@base": "http://localhost/",
> >       "name": "http://localhost/name",
> >       "interests": "http://localhost/interests",
> >       "items": {
> >         "@id": "http://localhost/interest",
> >         "@container": "@list"
> >       }
> >     },
> >     "@id": "http://localhost/john",
> >     "name": "John",
> >     "interests": {
> >       "@context": {
> >         "@base": "http://localhost/",
> >         "items": {
> >           "@id": "http://localhost/interest",
> >           "@container": "@list"
> >         }
> >       },
>
> There's no need to repeat the context here. You already have it in the
> top-level object.
>
>
> >       "@id": "http://localhost/john/interests",
> >       "@type": "http://localhost/array",
> >       "items": [ "Reading", "Writing" ]
>
> Since you are posting this to Hydra's list, you should probably use
> hydra:Collection and hydra:member instead of localhost:array and
> localhost:items... but you probably know that already :-)
>
>
> >     }
> >   }
> >
> > My challenge is that I want to enrich "items" element with node id for
> > each individual interest, something like this:
> >
> > {
> >     "@context": {
> >       "@base": "http://localhost/",
> >       "name": "http://localhost/name",
> >       "interests": "http://localhost/interests",
> >       "items": {
> >         "@id": "http://localhost/interest",
> >         "@container": "@list"
> >       }
> >     },
> >     "@id": "http://localhost/john",
> >     "name": "John",
> >     "interests": {
> [ removed redundant context]
> >       "@id": "http://localhost/john/interests",
> >       "@type": "http://localhost/array",
> >       "items": [
> >         {
> >           "@id": "http://localhost/123",
> >           "@value": "Reading"
> >         },
> >         {
> >           "@id": "http://localhost/456",
> >           "@value": "Writing"
> >         }
> >       ]
> >     }
> >   }
> >
> > Unfortunately this approach doesn't work because @value can not be
> > combined with @id in a JSON-LD node. I wonder if there is a way to
> > attach a node id to a container element of a primitive type, e.g. I
> > would like to keep "items" element values as strings without wrapping
> > them in a new structure. I thought I could do this with @value
> > specifier, but it doesn't work.
>
> Could you please exaplain why you want to do that? If it is a primitive
> type, than why does it also need to have an IRI? Isn't the value itself
> enough? Perhaps what you really have in mind is to give that IRI a label
> that will be used in the user interface!? In that case, you could use
> something like rdfs:label, hydra:title, schema:name
>
>
> --
> Markus Lanthaler
> @markuslanthaler
>
>
>
>
>
Received on Friday, 27 June 2014 09:07:41 UTC

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