Yes, the trick is the line sh:values sh:this, which basically means that
the values of ex:self are inferred/computed to be the values of the
focus node (?this) itself. So it's just a dummy property with a yet
unused URI (ex:self), that only exists for the purpose of creating this
artificial column.
Holger
On 2022-01-20 6:50 am, Tim Smith wrote:
I found the document - Inferring Data with SHACL Property Value Rules
(topquadrant.com)
<https://www.topquadrant.com/graphql/values.html> and that explained
it. It is now working for me.
On Wed, Jan 19, 2022 at 2:41 PM Tim Smith <smith.ts...@gmail.com> wrote:
Hi,
I am trying to do something similar to the example shown here
<https://datashapes.org/forms.html#ValueTableViewer>. I have
structured my ontology following the example. However, I cannot
get the "self" link to render properly. I would like the
values of my property shape (same as ex:Concept-broader-inverse in
below) to appear as links in the table instead of a text string.
When you are at the value node, I want to render the value node as
an IRI, such as this:
image.png
ex:ConceptTableShape-self
a sh:PropertyShape ;
*sh:path ex:self ;*
sh:description "This column is used to render the (narrower) concept
itself." ;
sh:name "narrower concept" ;
sh:nodeKind sh:IRI ;
sh:order "0"^^xsd:decimal ;
sh:values sh:this .
What property do I use to point to the value node from the value
node? ex:self is used in the example. Is there an ex:self
property on the value node (narrower concept) that points to
itself? Maybe I'm thinking about this incorrectly.
Thanks in advance for your help,
Tim
"In this example we have used a |sh:values| rule to infer the
values of the first column. In this case, the values are simply
pointing back to the focus node of each row, using |sh:this|. Note
that |dash:applicableToClass| or |sh:targetClass| are needed to
get this inference correctly."
skos:Concept
sh:property ex:Concept-broader-inverse .
ex:Concept-broader-inverse
a sh:PropertyShape ;
sh:path [ sh:inversePath skos:broader ] ;
sh:group skos:HierarchicalRelationships ;
sh:name "narrower (table)" ;
*dash:viewer dash:ValueTableViewer* ;
*sh:node ex:ConceptTableShape* .
ex:ConceptTableShape
a sh:NodeShape ;
dash:applicableToClass skos:Concept ;
rdfs:comment "A node shape defining the columns for a
dash:ValueTableViewer." ;
rdfs:label "Concept table shape" ;
sh:property ex:ConceptTableShape-self ;
sh:property ex:ConceptTableShape-type ;
sh:property ex:ConceptTableShape-altLabel .
ex:ConceptTableShape-self
a sh:PropertyShape ;
*sh:path ex:self ;*
sh:description "This column is used to render the (narrower) concept
itself." ;
sh:name "narrower concept" ;
sh:nodeKind sh:IRI ;
sh:order "0"^^xsd:decimal ;
sh:values sh:this .
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