"Record to Object" or "Selection to Object"?
I admit I've not been keeping 100% up to date with the many language changes in 4D v16 - so before I go write a bunch of test code (or worse, read the documentation) - do current versions of 4D have commands to convert from a record to an object, or selection to object array, and ideally vice-versa as well? Or do I still have to write these? Thanks, apologies for the "please do my homework" question, etc. - bill ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Re: "Record to Object" or "Selection to Object"?
On Thu, Mar 8, 2018, at 10:31 AM, Christian Sakowski via 4D_Tech wrote: > have you looked at "Selection to JSON" and "JSON TO SELECTION"? But it > will not cover all field types. Yeah - I'm currently doing: "Selection to JSON" and then "JSON PARSE ARRAY" but that's kindadumb. Also there's no "Record to JSON" or "Record to Object", so when I want to do that I've got to do a ONE RECORD SELECT which is also a hassle... hm. - bill ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Re: "Record to Object" or "Selection to Object"?
On Thu, Mar 8, 2018, at 11:17 AM, Keisuke Miyako via 4D_Tech wrote:
> OB Copy with pointers is effectively the "record to object" feature.
Ahh - that's useful. Now if only 4D supported pointers to methods. :)
Here's the specific issue: I have a record (many, actually heh) that has this
sort of structure:
[Appts]Title
[Appts]Start_Date
[Appts]Start_Time
I want to produce this sort of object:
{ title: "foo", start: '2018-02-12T08:30:00Z' }
Using "OB Copy"I can create a "template" object that will convert the
pointer->[Appts]Title into the "title" attribute in the copied object. So far
so good. But what's a clean method to convert the date & time fields in the
record into a single field in the object?
What I'm doing right now is manually processing the generated object via code
that does OB SET and OB REMOVE. Not ideal, but it works. Obviously method
pointers would be a perfect solution, but in the unfortunate absence of
perfection is there another solution that I'm missing?
Thanks for your help.
- bill
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HMAC SHA256 in native 4D code?
As the subject says - is it possible to do this in native 4D (no plugin) in v17? - bill ** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Printing 4D Write to PDF via Windows 10 "Microsoft Print to PDF"
Hi all - Apologies in advance - if this has been discussed and I'm just missing
it, please point me to the archives.
I need to print 4D Write docs (not 4D Write Pro), on Windows 10, to PDF, using
the built-in "Microsoft Print to PDF" printer. This is the code I curently
have, cobbled togeather from various sources:
SET CURRENT PRINTER("Microsoft Print to PDF")
SET PRINT OPTION(Spooler document name option;$fname)
SET PRINT OPTION(Destination option;2;$path)
WR SET PRINT OPTION ($area;wr spooler document name option;$fname)
WR SET PRINT OPTION ($area;wr destination option;wr send to file;0;$path)
OPEN PRINTING JOB
WR PRINT ($area;0;1)
CLOSE PRINTING JOB
It works, in that a PDF is created, with the right $fname, at the right $path.
It doesn't work, in that the PDF is 0 bytes in size.
Anyone have tested code that solves this problem?
- bill
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Re: Printing 4D Write to PDF via Windows 10 "Microsoft Print to PDF"
On Fri, Mar 1, 2019, at 1:16 PM, Koen Van Hooreweghe via 4D_Tech wrote: > I think the OPEN/CLOSE PRINTING JOB is not needed and perhaps causing > problems with 4D Write. Interestingly enough if those are removed the code does not print anything - no PDF file is created. They're used in a 4D TechNote example, but with PDFCreator, so I was not sure - bill ** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Dealing with hetrogenous JSON list data
Hi all: Assume I have some JSON data that looks like this:
[
{
"type": "foo",
"table": "bar"
},
"Sample String",
1,
2,
3,
"Sample String 2"
]
The "JSON Parse" works fine to parse that into a C_COLLECTION. However, at that
stage, how do I deal with it? Specifically, how can I tell what type each of
the elements in the collection are? Running under v17 so I can't use C_VARIANT.
Am I missing something obvious?
- bill
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Write PICT to disk, 64bit
Hi all: We have some 4D Write Pro documents that contain PICT (and other format) images. This code will give us a list of all images from the document: $res := WP Get Elements($area; wk_type_image) We would like to be able to write these images to disk - but PICTURE TO BLOB and WRITE PICTURE FILE both require a relevant codec, which of course for PICT does not exist in 64bit 4D. Does anyone have any idea how we might solve this problem? Thanks - bill ** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
