On 2022-06-20 2:51 pm, Tim Smith wrote:
On Mon, Jun 20, 2022, 12:30 AM Holger Knublauch
<hol...@topquadrant.com> wrote:
On 2022-06-20 2:17 pm, Tim Smith wrote:
Hi Holger,
I will do some testing. I have tried rendering a string of type
rdf:html in the value table viewer and it appeared as the HTML
source code (complete with tags) in the cell. If it appeared as
the HTML definition, that would give me complete control for the
initial use case.
Right, I looked at the source code and believe the tables should
render rdf:HTML inline, so I have recorded a ticket to get this
changed (after confirming there is no problem with that).
I will also double check what I found last week. I used SPARQL to
force a change from rdf:HTML to xsd:string so the text would not
display with tags. This worked. I am trying to somewhat visually
duplicate an existing Excel layout to prove to my Stakeholders that my
knowledge graph actually has the same information. (the true base use
case is being able to first define the shape of the graph and second
being able to render the shape in a way that they expect to see , thus
my need to control formatting for viewing)
If value table viewer will render HTML, then I can achieve my first
use case, and hopefully gain acceptance. I'm happy to share more
details off-list.
Coming up
I'll see if I can still get this into 7.3 for you.
Holger
For the full use case, I will need professional services to
enhance the functionality of the existing value table viewer.
Over many years of experience, I have found that a
spreadsheet-like way to create instance data in a complex graph
significantly lowers the barrier of entry to a knowledge graph
solution.
In older iterations, the Search Panel had editable cells, and that
made inline editing quite easy. Would that help or would edits
need to be on the Form itself?
I need to review the previous functionality to know if that would work.
What I was envisioning now was writing a constructor using ADS, and
expressing that constructor as a row in a Value Table Editor. It may
not be a generilizable solution but it would work for graph shapes
that needed to create a lot of intermediate instances to fully
populate the shape.
Thanks for the input!
Tim
Holger
Thank you for your solutions,
Tim
On Sun, Jun 19, 2022, 7:59 PM Holger Knublauch
<hol...@topquadrant.com> wrote:
Hi Tim,
*declaring* a viewer (or editor) so that it shows up in the
dash:viewer selection is, of course, easy and done through
RDF triples. However, the implementations of almost all
viewers is in JavaScript/React. The process for those is
described in the PDF linked from
https://www.topquadrant.com/doc/7.2/ext/points.html#adding-a-new-panel-to-the-editor-applications
One way of declaring simple viewer widgets without any
programming is to infer rdf:HTML literals using a sh:values
rule. So in theory, depending on your requirements, you could
declare a new property with a sh:values rule that uses ADS, e.g.
graph.html(`
<table>
<tr>
<td>${focusNode.value(rdfs.label)}</td>
</tr>
</table>
`)
This mechanism would however require a new property with a
different sh:path, and also it can only produce normal HTML,
and not the more powerful React-based tables that we use as
foundation of our own viewers.
But maybe there is a middle ground here: using the built-in
dash:ValueTableViewer as in
https://datashapes.org/forms.html#ValueTableViewer
and then use sh:values inferences to produce rdf:HTML? This
could control colors and fonts, but supporting editing is a
completely different beast altogether, because it would blur
the lines of view and edit modes (and the complexity of
permissions).
Using TQ Professional Services or Premium Support is another
option. We could look at your requirements together and come
up with a plan to either do custom development or generalize
what we have to also support your use cases.
Holger
On 2022-06-18 3:22 am, Tim Smith wrote:
Hi,
I would like to add additional viewers and editors like
those found in the dash namespace
<https://www.datashapes.org/forms.html#overview>. Is it
possible to add to EDG in this way? Can I add capability to
an existing viewer? In particular, I would like a more
robust Value Table Viewer that supports colors, fonts, and
editing for certain use cases. If so, is there a guide
available?
Thanks,
Tim
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