Irene, thanks for the detailed response.
I have a few follow-up questions:
1. You wrote: "There may be multiple changes where g:Raleigh is the value
of a teamwork:subject, you want to select the one with the greatest
dcterms:created to determine the last date/time of a change." How would
you recommend doing that? (I wouldn't be surprised if our change history
contains 20+ changes for any given concept.)
2. Do you think it would be possible to add a teamwork function in the
future that gets the last changed date for resources in a more "out of the
box" way? This must be a relatively common use case.
3. Your response makes me think there is probably no published
documentation about TTF other than what I've found so far. Would you
consider making a full spec available to TQ users?
On Friday, May 14, 2021 at 3:40:24 PM UTC-7 Irene Polikoff wrote:
> I can explain how the data is stored in more detail:
>
> There is a change resource that has the time of a change.
>
>
> *<urn:x-change:2021-05-14T21-56-29.119ZAdministrator-61d2232b-2b12-493b-92e0-815d259e907d>*
> rdf:type teamwork:Change ;
> dcterms:created "2021-05-14T21:56:29.119Z"^^xsd:dateTime ;
> sioc:has_creator <urn:x-tb-users:Administrator> ;
>
> Change resource is a subject of added and deleted triples in this
> transaction. These triples capture what exactly was added or deleted.
>
> Let’s say, an alternative label was added for Raleigh. You will get:
>
>
> *<urn:x-change:2021-05-14T21-56-29.119ZAdministrator-61d2232b-2b12-493b-92e0-815d259e907d>*
> rdf:type teamwork:Change ;
> dcterms:created "2021-05-14T21:56:29.119Z"^^xsd:dateTime ;
> sioc:has_creator <urn:x-tb-users:Administrator> ;
> teamwork:added [
> teamwork:object "new synonym" ;
> teamwork:predicate skos:altLabel ;
> teamwork:subject g:Raleigh ;
> ] ;
>
> If you looking for the last change only, then you need to go for the most
> recent date among the change records that did something with each concept -
> in the example above g:Raleigh. There may be multiple changes where
> g:Raleigh is the value of a teamwork:subject, you want to select the one
> with the greatest dcterms:created to determine the last date/time of a
> change.
>
> If a change happened in a working copy, the change resource will have the
> tag property which value is a working copy. For example.
>
>
> *<urn:x-change:2021-05-14T21-56-29.119ZAdministrator-61d2232b-2b12-493b-92e0-815d259e907d>*
> teamwork:tag
> <urn:x-tags:basic_workflow___x__administrator_on_2021_05_14_17_55_39>.
>
> If you want to include only committed changes and go by the date of
> commit, not the date a change was made, this adds some complexity since the
> most recent change is not necessary the one where the edit happened most
> recently. You need to:
>
> First, select only changes that are associated with a workflow/working
> copy that is committed {?wc. teamwork:status teamwork:Committed}
>
> And look for the date of commit as opposed to the date of a particular
> change. The workflow captures all its status changes, this gives you the
> date of commit.
>
> For example,
>
> <urn:x-tags:basic_workflow___x__administrator_on_2021_05_14_17_55_39>
> rdf:type teamwork:Tag ;
> teamwork:status teamwork:Committed ;
> teamwork:statusChange [
> dcterms:created "2021-05-14T18:02:37.739-04:00"^^xsd:dateTime ;
> sioc:has_creator <urn:x-tb-users:Administrator> ;
> teamwork:newStatus teamwork:FrozenForReview ;
> ] ;
> teamwork:statusChange [
> dcterms:created "2021-05-14T18:03:43.626-04:00"^^xsd:dateTime ;
> sioc:has_creator <urn:x-tb-users:Administrator> ;
> teamwork:newStatus teamwork:Approved ;
> ] ;
> teamwork:statusChange [
> dcterms:created "2021-05-14T18:04:00.756-04:00"^^xsd:dateTime ;
> sioc:has_creator <urn:x-tb-users:Administrator> ;
> teamwork:newStatus teamwork:Committed ;
> ] ;
>
>
>
> On May 14, 2021, at 4:57 PM, [email protected] <
> [email protected]> wrote:
>
> Suppose I want to write a query for the last changed date of every concept
> in my taxonomy. Further suppose that in the case of changes made in working
> copies, I'm only interested in the date the change was committed to
> production.
>
> How can I write these kinds of queries? Is there someplace where all the
> classes and properties in the teamwork: namespace are documented? I don't
> really see much here: https://doc.topquadrant.com/7.0/teamwork/
>
> By searching the archives of this message board, I discovered that the
> property <http://topbraid.org/teamwork#lastChange> exists, but it seems
> to apply only to entire knowledge graphs, not to individual resources like
> concepts. Is that right?
>
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