For such a simple form, you could even do an almost static HTML page,
which calls the GraphQL mutation service. You can check the network
traffic when you save changes on an EDG form, and your form could call
something similar. The GraphQL mutation will first perform a "dry run"
of the change to see if it would cause violations. If none are reported,
it will commit the change. Here is an example snippet that will perform
validation and only commit if there are no violations.
mutation saveFormChanges { ... do your actual changes here, try it out
on the GraphiQL editor's auto-complete results { message severity
focusNode { label uri } path pathLabel value { label uri }
constraintComponentName sourceShape { label uri } } commit(message:
"Form edits for XY", strict: true) }
This topic of custom code development goes beyond what we can typically
support on this mailing list. TSM tickets or premium support are preferred.
Regards,
Holger
On 11/6/2020 10:11 AM, Fan Li wrote:
Hi Holger, thanks for your reply. I have a very simple form (3 or 4
fields) and the main purpose is to be able to perform SHACL validation
on submitted results. Would it be better to do everything in SWP, or
use combination of React and EDG APIs? The latter seems to be an overkill.
On Thu, Nov 5, 2020, 6:25 PM Holger Knublauch <[email protected]
<mailto:[email protected]>> wrote:
Hi Fan Li,
this is a very complex topic. I guess you need to decide which
technology to use to create the client code, and another to handle
the edits on the server. There are so many choices. SWP can in
principle be used both to generate HTML but also to implement
services that take input values and turn them into RDF triples.
But GraphQL mutations already do the latter too. So if you have
relatively simple forms where each input field matches a GraphQL
field then you could use any 3rd party technology such as React to
implement the client. Having said this you could even do
everything in React or vanilla JavaScript and have the client
create SPARQL UPDATE requests.
Really hard to answer without a longer discussion about your
requirements. A related question is if you even consider using SWP
then could your requirements be handled by a plugin to EDG, and if
yes then what is missing about using EDG directly.
Holger
On 11/6/2020 12:36 AM, Fan Li wrote:
Hello Irene & Holger, I need to create a web page of a data entry
form (with SHACL validation) based on EDG for end users. I am
confused if such custom development should be done via SWP or
GraphQL. My understanding is that SWP will generate the UI
directly whereas GraphQL needs a separate front-end app (such as
built in React). Would you please provide some clarification &
recommendation? --
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