Thanks, Holger. The main differences between the country/state scenario and mine are:
1. The values of sh:in (for the PropertyShape declaration) and dash:object (in the sh:target declaration) need to be resources, rather than strings as in your example. 2. My sh:target statement would need to be more complex, because I want to invoke the special shape (analogous to states:AUAddressShape) not when the instance has a certain value for the "other property," but when its value has a certain rdf:type. Is this doable, either in an out-of-the box way or in a customized way? (Feel free to reach out to me off of the list if that's more appropriate.) thanks, Carl From: topbraid-users@googlegroups.com <topbraid-users@googlegroups.com> On Behalf Of Holger Knublauch Sent: Wednesday, August 11, 2021 3:10 PM To: topbraid-users@googlegroups.com Subject: Re: [topbraid-users] Pre-limiting values available to the user *** External email: use caution *** I am attaching an example shapes graph for a scenario like the country/state pairs. Applicable values are expressed by a SHACL node shape that has a dash:HasValueTarget as its sh:target and uses a sh:in enumeration for the permissible values. As an example choosing 'Temperature' as the quantity kind of the focus node needs to constrain the values of unit for that same node to Celsius, Fahrenheit or Kelvin. This does not seem to be exactly the scenario you have, which seems to be "all concepts under a given concept scheme"? As I said this is difficult to generalize and may require a custom widget or custom extension. Holger On 2021-08-12 7:48 am, Carl Burnett wrote: Thanks for the quick reply, Holger. Do you mean that you support only the scenario related to geography, or also other similar scenarios? In our case, we want to look at the specific rdf:type of the concept that has been selected as the value of one property and use it to constrain the values of another concept scheme that are in play for the second property. From: topbraid-users@googlegroups.com<mailto:topbraid-users@googlegroups.com> <topbraid-users@googlegroups.com><mailto:topbraid-users@googlegroups.com> On Behalf Of Holger Knublauch Sent: Wednesday, August 11, 2021 2:43 PM To: topbraid-users@googlegroups.com<mailto:topbraid-users@googlegroups.com> Subject: Re: [topbraid-users] Pre-limiting values available to the user *** External email: use caution *** Hello Carl, no, the user input widget only looks for the declared sh:class. Doing more sophisticated on-the-fly checking against something as complex as SPARQL queries would likely be too slow, and people would see the error when they try to press the Save Changes button because the form will display an error/warning in that case. In your specific case, the situation would become even harder to check on the fly, because - as you say - the values depend on each other and we would need to temporarily infer all currently entered values etc. We do have support for one specific scenario though, in cases such as "when property1 (country) is 'USA' then property2 (state) must be one of 'Alaska', 'Alabama', ... in case that patterns is what you need. I can provide details if that sounds interesting. Holger On 2021-08-12 7:10 am, cbur...@healthwise.org<mailto:cbur...@healthwise.org> wrote: Suppose I have a data graph with an underlying ontology that defines a class/NodeShape and two propertyShapes as follows: ex:ClassA a owl:Class ; a sh:NodeShape ; sh:property ex:ClassA-property1 ; sh:property ex:ClassA-property2 ; . ex:ClassA-property1 a sh:PropertyShape ; sh:maxCount 1 ; sh:minCount 1 ; sh:path ex:property1 ; sh:class ex:ConceptType1 ; . ex:ClassA-property2 a sh:PropertyShape ; sh:maxCount 1 ; sh:minCount 1 ; sh:path ex:property2 ; sh:class ex:ConceptType2 ; . Now suppose I want to impose a further constraint on the instances of ex:ClassA in my data graph: The value of ex:ClassA-property2 is constrained in a specific way (expressible by a SPARQL constraint) based on the user-selected value for ex:ClassA-property1. I have written a SPARQL-based SHACL constraint to enforce this. 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