RE: Named Selections
Thanks,
I was hoping there was a an already existing command.
On Fri, 8 Feb 2019 13:31:05 -0600, David Ringsmuth wrote:
> Chip,
>
> We did this same things with sets by using an On Err
> Call(“Error_SetDoesNotExist”).
>
> Write an On Err Call for Named Selections, and then use it, and test
> the result of your call error handler.
>
> Hth!
>
> David Ringsmuth
>
> From: Chip Scheide via 4D_Tech
> Sent: Friday, February 8, 2019 11:52 AM
> To: 4D iNug Technical
> Cc: Chip Scheide
> Subject: Named Selections
>
> Is there a way to determine if a named selection exists?
>
> something like this:
>
> if (Not(Named Selection Exists("Selection_Name")))
> Copy Named Selection([table];"Selection_Name")
> end if
>
> Thanks
> Chip
>
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RE: Named Selections
Chip,
We did this same things with sets by using an On Err
Call(“Error_SetDoesNotExist”).
Write an On Err Call for Named Selections, and then use it, and test the result
of your call error handler.
Hth!
David Ringsmuth
From: Chip Scheide via 4D_Tech
Sent: Friday, February 8, 2019 11:52 AM
To: 4D iNug Technical
Cc: Chip Scheide
Subject: Named Selections
Is there a way to determine if a named selection exists?
something like this:
if (Not(Named Selection Exists("Selection_Name")))
Copy Named Selection([table];"Selection_Name")
end if
Thanks
Chip
---
Gas is for washing parts
Alcohol is for drinkin'
Nitromethane is for racing
**
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Named Selections
Is there a way to determine if a named selection exists?
something like this:
if (Not(Named Selection Exists("Selection_Name")))
Copy Named Selection([table];"Selection_Name")
end if
Thanks
Chip
---
Gas is for washing parts
Alcohol is for drinkin'
Nitromethane is for racing
**
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Options: https://lists.4d.com/mailman/options/4d_tech
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Re: Does anyone know how IP sets and named selections are meant to interact with workers?
I realized after posting that the forums in France are a better place for my question. If anyone is reading the archives and wants to see if an answer came through, go to this thread: IP sets and named selections in workers: What should we expect? http://forums.4d.fr/Post/EN/19400576/1/19400577 ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Does anyone know how IP sets and named selections are meant to interact with workers?
Continuing on with basic research here as the answer doesn't seem to be in the docs (?) Workers don't allow for IP variables/arrays, but do allow for virtually every other thing that you can have in a normal process. You don't get IP vars, but you do get CALL WORKER. Fine by me. But then I wondered "what about IP sets?" I guessed that an IP set or named selection created outside of a worker would not be visible within a worker. I was wrong. I did a five-minute scratch database and tested out: * Create an IP set in a standard process (process 1 or a new process, same results). * Call a worker and tell it to run a method that uses the set or named selection and report how many records there are. The worker saw the IP set and IP named selection just fine. I have no problem with this - I think it's a good result - but i didn't find any documentation on the feature one way or the other. Is this something that we can count on, or is it something that might change in future versions? We can pass in sets and selections via data without relying on IP sets/named selections...but I wouldn't go to the trouble unless I have to. ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
