Make a dropdown with calculated values

[Ad Reuijl]

Hi Holger, 




I  have a class, that has some instances. i'm showing them in the frontend via a sh:values rule. 

werkwijzeFrontend:Resource-keuzenlijst

  a sh:PropertyShape ;

  sh:path werkwijzeFrontend:keuzenlijst ;

  sh:group tosh:LabelsPropertyGroup ;

  sh:description "keuzelijst" ;

  sh:name "keuzen" ;

  sh:values [  

  sh:prefixes <https://ontology.schiphol.nl/werkwijzeFrontend> ;

  sh:select """

 

SELECT DISTINCT ?listOfValues

  WHERE {

$this owl:equivalentClass ?class.

?class owl:oneOf ?list.

?list rdf:rest*/rdf:first ?listOfValues

}

  """ ;

       

    ] ;

  sh:order "11"^^xsd:decimal ;

.

(yes this is a bit of a weird query, but there are reasons ;) )

Now i want the user to have a dropdown to select one of these values. Until now i managed with the use of sh:class and sh:node. for example

  werkwijzeFrontend:PropertyShape-kenmerkenToevoegen

  a sh:PropertyShape ;

  sh:path ddschange:toeTeVoegenKenmerkProperty;

  #sh:class dds:Kenmerk ;

  sh:class owl:Class;

  sh:node werkwijzeFrontend:NodeShape-Kenmerk;

  sh:description "Maak een toevoegingsverzoek aan voor een kenmerk" ;

  sh:group werkwijzeFrontend:ToevoegingenPropertyGroup ;

  sh:name "voeg kenmerk(en) toe" ;

  sh:order "6"^^xsd:decimal ;

.

werkwijzeFrontend:NodeShape-Kenmerk a sh:NodeShape;

    sh:property [

      sh:path rdfs:subClassOf;

      sh:hasValue dds:SpecifiekKenmerk;

    ]

  ;

.

 but in this case i need to refer to $this. Is this possible? Could you please help me, i have been searching and searching but cant find anything. 

Regards,

Ad Reuijl

[Holger Knublauch]

Hi Ad,

not sure if I understand the scenario correctly. Do you mean:

1) One property is dynamically computed using sh:values

2) Another property shall be edited as a drop-down list populated with those values?

Holger

On 4 Mar 2024, at 2:48 pm, Ad Reuijl <adre...@gmail.com> wrote:

Hi Holger, 

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[Ad]

Yes indeed, exactly that. 

Regards,

Op ma 4 mrt 2024 16:24 schreef Holger Knublauch <hol...@topquadrant.com>:

To view this discussion on the web visit https://groups.google.com/d/msgid/topbraid-users/DDF8BD23-4C7C-43AB-A15E-6166DB162586%40topquadrant.com.

[Holger Knublauch]

Ok, that's what I thought. We do not have such a widget yet. I guess it could become a new kind of constraint where the allowed values are dynamically computed. This would be similar to sh:in but with a sh:values rule underneath.

So, you have been searching thoroughly and did not find it because it really doesn't exist. But it's a good requirement that I have ran into before.

Holger

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[Ad]

Thanks Holger,

Saves a lot of time searching :) 

Regards, Ad

Op ma 4 mrt 2024 17:39 schreef Holger Knublauch <hol...@topquadrant.com>:

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