uri-generation issue shacl/sparql

Bohms, H.M. (Michel)

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Mar 2, 2022, 10:36:40 AM3/2/22

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Why no Meting_1 result executing:

When I delete the 3^rd part I get (it right):

So do I miss some function for the 3^rd component?

Thx Michel

	Michel Böhms Data Scientist Unit Buildings, Infrastructure & Maritime	Mobile +31 630381220 E-mail michel...@tno.nl	Location

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David Price

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Mar 2, 2022, 11:40:32 AM3/2/22

to 'Felix Sasaki' via TopBraid Suite Users

Likely you need to cast ?time to be xsd:string. CONCAT requires strings.

Cheers,

David

On 2 Mar 2022, at 15:36, 'Bohms, H.M. (Michel)' via TopBraid Suite Users <topbrai...@googlegroups.com> wrote:

Why no Meting_1 result executing:

<image001.png>

When I delete the 3^rd part I get (it right):

<image003.png>

So do I miss some function for the 3^rd component?

Thx Michel

Michel Böhms
Data Scientist
Unit Buildings, Infrastructure & Maritime

Mobile +31 630381220
E-mail michel...@tno.nl
Location

<image002.gif>

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Richard Cyganiak

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Mar 2, 2022, 11:50:17 AM3/2/22

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On 2 Mar 2022, at 16:40, David Price <dpr...@topquadrant.com> wrote:

Likely you need to cast ?time to be xsd:string. CONCAT requires strings.

Not just CONCAT but also ENCODE_FOR_URI. I would think both ?time and ?out_1 need to be cast to string.

..., encode_for_uri(str(?time)), encode_for_uri(str(?out_1))

Richard

<image001.png>

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Bohms, H.M. (Michel)

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Mar 2, 2022, 12:12:36 PM3/2/22

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?time is already string…

Michel Böhms
Data Scientist

Unit Buildings, Infrastructure & Maritime

Mobile +31 630381220
E-mail michel...@tno.nl

Location

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Bohms, H.M. (Michel)

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Mar 2, 2022, 12:19:31 PM3/2/22

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?time already being a string I applied to third term:

SELECT *

WHERE {

?this rdf:type ri:Meting .

?this ri:time ?time .

OPTIONAL { ?this ri:out_1 ?out_1 } .

BIND (IRI (CONCAT (http://www.w3.org/ns/sosa/_, encode_for_uri (?time), encode_for_uri (str(?out_1)))) AS ?meting1) .

}

Now i have the right result:

It looked strange but is I guess as expected:

All : are encoded. I will put siome extra underscores in…

Thx a lot! Michel

Ps

Hope I now get it to work in the same way in shacl construct rule….

Michel Böhms
Data Scientist

Unit Buildings, Infrastructure & Maritime

Mobile +31 630381220
E-mail michel...@tno.nl

Location

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From: topbrai...@googlegroups.com <topbrai...@googlegroups.com> On Behalf Of Richard Cyganiak
Sent: woensdag 2 maart 2022 17:50
To: topbraid-users list <topbrai...@googlegroups.com>
Subject: Re: [topbraid-users] uri-generation issue shacl/sparql

On 2 Mar 2022, at 16:40, David Price <dpr...@topquadrant.com> wrote:

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David Price

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Mar 2, 2022, 12:19:33 PM3/2/22

to 'Felix Sasaki' via TopBraid Suite Users

It is almost always that CONCAT needs strings and something provided is not a string, so if not the one I suggested then check the other variables. You may need to BIND them outside the CONCAT so you can see their datatype.

Cheers,

David

On 2 Mar 2022, at 17:12, 'Bohms, H.M. (Michel)' via TopBraid Suite Users <topbrai...@googlegroups.com> wrote:

?time is already string…

Michel Böhms
Data Scientist
Unit Buildings, Infrastructure & Maritime

Mobile +31 630381220
E-mail michel...@tno.nl
Location

<image002.gif>
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From: topbrai...@googlegroups.com <topbrai...@googlegroups.com> On Behalf Of David Price
Sent: woensdag 2 maart 2022 17:40
To: 'Felix Sasaki' via TopBraid Suite Users <topbrai...@googlegroups.com>
Subject: Re: [topbraid-users] uri-generation issue shacl/sparql

Likely you need to cast ?time to be xsd:string. CONCAT requires strings.