drjdpowell

8 hours ago, CT2DAC said:

Cannot install versions more recent than 1.13 with VIPM - error: unable to download from repository.

Do you have the latest version of vipm?

Yes, at some point I intend to make an interface that has "to JSON" and "from JSON" methods, that one can inherit from.  But at the moment JSONtext is based in LabVIEW 2017.

15 hours ago, X___ said:

Raised here: https://bitbucket.org/drjdpowell/jsontext/issues/103/what-to-do-about-complex-numbers

I will fix the inconsistance, either by making comlex numbers full not supported or fully supported. 

On 12/21/2023 at 10:45 PM, daenglis said:

How does JSONtext handle null strings?

Can you give a more specific question?

15 hours ago, Scatterplot said:

Is there any reason to NOT want this behavior, by the way? 

Not necessarily, but it is trickier than it looks because of those "multipoint paths" that unflatten does not support.  A path like $.a.[new,old].b[4].c.d, for example.  If all paths were straightforward like $.a.b.c.d then it would be easy.

Although I use JSON for configuration, I'm not using it in the same way you are doing, so it hasn't motivated me to solve this issue. Sorry.

See if "Unflatten JSONpath Array to Object" will do what you want.  It will create the extra levels if needed.

That vipm package seems to have gotten corrupted somehow.  I'll contact NI about it.  In the meantime, try getting it from here: https://forums.ni.com/t5/JDP-Science-Tools/Out-of-Memory-Error/m-p/4335019/highlight/true#M156

On 11/6/2023 at 1:31 PM, ciozi137 said:

@drjdpowell bumping this topic to see how best I can contribute to the postgres repo

 

Can you try forking the repo?  Then making a pull request?   I only have a free Bitbucket account and there is a limit on how many people I can add to my repos.

Compiled object cache is an SQLite database, I believe, so is suspect you can easily delete VIs from it.  Though you'd have to test that.

I'm afraid I don't have an example.  I did once prototype a version where I swapped out the flattened message format for one that used JSON (I recommend JSON as an easy, reliable format to go between languages).  

I use the "Advanced PNG Export" feature of https://pictogrammers.com/library/mdi/.  This allows some customisation of icon (size, colour, transparency, border) before downloading.

Why are you making Setting modules at all, rather than just having the other modules just read the INI file directly?   This seems very over complicated.

15 hours ago, Francois Aujard said:

I have loops that start but how to transfer the data without going through global variables or FGV.... 

Quite a lot of good architectures are based on using messages between semi-independent modules, with the modules being based on a standardized template.  There are a few such "frameworks" publicly available via vipm.io that you could look at.  Mine is "Messenger Library", which has some instructional videos.

I've long thought the Event API has bad naming.  If the Event Reg Refnum was called "Event Queue" and the User Event was called "Event Generator", then it would be easier for people to understand it.  

Maybe if you posted what device you are trying to talk to, and perhaps pointed to the manual, you might get better help. 

Did you do the Write?  It only outputs on Write. I am considering having the Read write the Template, as it is confusing to have an empty file untill the Write happens.

17 hours ago, Jordan Kuehn said:

I couldn't find the code repository entry for this library,

Here is the Issues lost: https://bitbucket.org/drjdpowell/pq-labview/issues?status=new&status=open

I am not actively working on this project, but it might be the case that the PQ dll used by the library needs updating.

Re the main issue, this seems to be my misunderstanding about how Savepoints work (as distinct from BEGIN and ROLLBACK).  Here is a relevant discussion. 

From that discussion, I see I should, instead of "ROLLBACK TO <Savepoint>" I should do "ROLLBACK TO <Savepoint>; RELEASE <Savepoint>;"  Issue 22

2 hours ago, mwebster said:

LabVIEW 2020.  Example.vi

As an aside, you should look into the Upsert clause, which allows doing INSERT or UPDATE in a single SQL statement.

Also, note that you don't need savepoints about a single transaction (all single statements are their own transaction, and either succeed or rollback automatically).

Hi @mwebster,

Can you upload an example showing this problem?  Something is wrong somewhere, as a Savepoint outside of an open transaction should behave the same as Begin-Rollback, to my understanding.

16 hours ago, hooovahh said:

I agree, and it does at times sound desperate.  But also is this just how things are in the corporate world?

This appears to be a pretty standard "hostile takeover" attempt, complete with all the usual things like a "poison pill" defence, and an appeal to shareholders to set up for a "proxy fight". Noone in the corporate world thinks any less of Emerson for doing a very normal business thing.

26 minutes ago, ShaunR said:

Especially as their offer is now under the share price rather than 38% over.

The market presumable thinks the offer will be accepted, possibly at a higher price.

Just to second ShawnR's suggestion to look for documentation on the underlying communication protocol.  Multiple times I have found poor quality LabVIEW libraries just use better quality communication protocols underneath, and I just implement that protocol with my own library.

18 minutes ago, Neil Pate said:

James, I found the NI automatically generated stuff quite hard to understand. I spent time stripping it down to the VIs with the black banners (under those are just the DLL calls) and actually it really is not complicated, its just packed up in a way that is completely not usable for me.

I did the exact same thing!  Posted my version here: https://github.com/ni/grpc-labview/issues/206 

I made a small helper class to allow easier configuration of each Procedure with a name and two message clusters:

NI is working on gRPC and LabVIEW.   I am trying to give them feedback on their Github page.  In particular, I think they are going the wrong way in trying to create a Scripting-black-box solution rather than a simpler gRPC Library, and that this is a major danger to the project.  gRPC looks like it could be important, and we have a stake in making this project successful. 

If anyone else would like to comment on this, please see https://github.com/ni/grpc-labview/issues/208