Thank you all for support. I will try to explain it clearer. The autoincrementID is a property that will refer to another system - and it will be an ID in another system, therefore this is not a count of current instances. So there is an existing system that has some Animal instances and each of Animal has this autoincrementID property. Now I built another system also with Animals but containing much more properties that I want to connect to the first system based on this autoincrementID property. Therefore whenever I add a new Animal to my data graph I also need to add the autoincrementID continuing the id count from another system. So let's say that I add to my data graph an Animal which will have URI *Animal10254 * and the last value of autoincrementID from another system is 959. Then my *Animal10254* needs to have autoincrementID == 960. Does this makes more sense?
Kind regards, Maja torsdag 18. mars 2021 kl. 14:47:44 UTC+1 skrev Irene Polikoff: > Yes, a good point David. > > On Mar 18, 2021, at 8:56 AM, David Price <[email protected]> wrote: > > > > On 17 Mar 2021, at 21:56, Irene Polikoff <[email protected]> wrote: > > Another approach is to use a property value rule to automatically > calculate the *autoIncrementID* > > It sounds like you want to get a count of all instances plus some number. > > > Hi Maja, > > I’m not sure the above is what you mean by “I would like to increment that > property each time a new instance of a class is created, starting from a > particular number”. > > Either way, everyone should take care to understand the difference between > "max of existing value" vs. "count of instances” logic. There is no > difference in some scenarios, but they are not identical if your scenario > allows people to delete instances. > > Example: > > Create 10 instances - the next Create integer would be 11 if no other > change happens and at this moment max and count produce identical result. > > Delete 5 instances. > > Now: > > - “count instances” approach would say 6 is the next available integer > > - “max current value” approach could return anything from 6 to 11 > depending on exactly which instances got deleted > > Just suggesting to do a deep analysis of your reuirements before deciding > which logic will work in all your user scenarios - and then do a lot of > testing. > > Cheers, > David > > > What is *autoIncrementID *a property of? > > Is it a property that each instance of a class has, so that for each > instance you can get the count of ll instances of a class plus a number ? > > Then, you would define it for the class Animal and create a property value > rule as follows > > > > <PastedGraphic-65.png> > > Select Count number of inverse property values > > <PastedGraphic-67.png> > > You will get this rule if you look at the source code > > g:Animal-autoIncrementID > a sh:PropertyShape ; > sh:path g:autoIncrementID ; > sh:datatype xsd:integer ; > sh:name "autoIncrementID" ; > sh:nodeKind sh:Literal ; > sh:values [ > sh:count [ > sh:path [ > sh:inversePath rdf:type ; > ] ; > ] ; > ] ; > . > > Update it because the path you want to use for the count is from an > instance to the class and then from the class to all instances via inverse > i.e., rdf:type/^rdf:type > > g:Animal-autoIncrementID > a sh:PropertyShape ; > sh:path g:autoIncrementID ; > sh:datatype xsd:integer ; > sh:name "autoIncrementID" ; > sh:nodeKind sh:Literal ; > sh:values [ > sh:count [ > sh:path ( > rdf:type > [ > sh:inversePath rdf:type ; > ] > ) ; > ] ; > ] ; > . > > Now, when you access any instance of Animal, you can get a count of all > Animals > > <PastedGraphic-70.png> > > > If you want to add some number to the count, use sparql:add function in > your rule - http://datashapes.org/sparql > > You can also associate the property with the class itself, then you do not > need to change the rule that will be generated by the template. > > To associate a property with a class, switch the class hierarchy root to > Resource, find owl:Class in the tree and define the property and a rule for > it. > > <PastedGraphic-68.png> > > Then, you will get the generated autoIncrementID value for every class in > your ontology > > <PastedGraphic-69.png> > > > You can also define a property for all classes to store the number you > want to add to the count. The value of this property could be different for > different classes. > > The above approach for adding a property to a class is for 7.0. If you are > using 6.4, use the following approach to add properties directly to a > class: > > > https://doc.topquadrant.com/6.4/ontologies/#Customizing_Forms_for_Classes_and_Properties > > > On Mar 17, 2021, at 8:49 AM, David Price <[email protected]> wrote: > > Hi Maja, > > There may be other ways, but you can do this kind of thing with an EDG > Edit Rule as code. An Edit Rule can access the changes graph via a special > graph called ui:addedGraph (ui:deletedGraph is also available) and find new > instances being created and then search the current graph data for the max > existing value and just add one. Something like this should be close and > search for that property in any new instance of any class: > > property-rules:Set_autoIncrementID > a teamwork:EditRule ; > teamwork:ruleMayUpdate true ; > ui:prototype """ > <ui:forEach ui:resultSet=\"{# > SELECT DISTINCT ?i ?class > WHERE { > GRAPH ui:addedGraph { > ?i a ?class . > FILTER NOT EXISTS { > ?i myschema:autoIncrementID ?currentvalue . > } . > } . > } }\"> > <ui:update ui:updateQuery=\"{! > INSERT { > ?i myschema:autoIncrementID ?nextvalue . > } > WHERE { > GRAPH ui:addedGraph { > ?i a ?class . > } . > { > SELECT (MAX(?num) AS ?maxvalue) > WHERE { > ?noti a ?class . > ?noti myschema:autoIncrementID ?id . > BIND (ceil(xsd:decimal(?id)) AS ?num) . > FILTER bound(?num) . > } > } . > BIND (COALESCE((xsd:integer(?maxvalue) + 1), 1) AS > ?nextvalue) . > } }\"/> > </ui:forEach> > """^^ui:Literal ; > rdfs:comment "When creating a new thing set the autoIncrementID property > value to be the next highest interger value" ; > rdfs:label "Default autoIncrementID" ; > rdfs:subClassOf teamwork:EditRules ; > . > > Cheers, > David > > > On 17 Mar 2021, at 12:09, majaCap <[email protected]> wrote: > > Hi, > > I have an int property in my ontology. Now, I would like to increment that > property each time a new instance of a class is created, starting from a > particular number. How would I approach this in EDG? Let's say the class > instance is Animal with property *autoIncrementID*. Each time I create a > new Animal I would like the *autoIncrementID *to be incremented by 1. > > Br, > Maja > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/01759423-765a-4084-a991-2caa46eb49e8n%40googlegroups.com > > <https://groups.google.com/d/msgid/topbraid-users/01759423-765a-4084-a991-2caa46eb49e8n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > UK +44 (0) 7788 561308 <+44%207788%20561308> > US +1 (336) 283-0808 <(336)%20283-0808> > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/6CE83445-5B78-424E-A92F-7E5FDE25E275%40topquadrant.com > > <https://groups.google.com/d/msgid/topbraid-users/6CE83445-5B78-424E-A92F-7E5FDE25E275%40topquadrant.com?utm_medium=email&utm_source=footer> > . > > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/26067D09-E4E1-4C22-908D-814BDB0E23D7%40topquadrant.com > > <https://groups.google.com/d/msgid/topbraid-users/26067D09-E4E1-4C22-908D-814BDB0E23D7%40topquadrant.com?utm_medium=email&utm_source=footer> > . > > > UK +44 (0) 7788 561308 <+44%207788%20561308> > US +1 (336) 283-0808 <(336)%20283-0808> > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/FB3F08CF-85E9-49B8-B3A7-5F272C0AE3C7%40topquadrant.com > > <https://groups.google.com/d/msgid/topbraid-users/FB3F08CF-85E9-49B8-B3A7-5F272C0AE3C7%40topquadrant.com?utm_medium=email&utm_source=footer> > . > > > -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. 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