//discuss.4d.com/pub/frequently-asked-questions>
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Hi,
direct link is <https://discuss.4d.com>
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> Le 4 mars 2024 à 18:32, Jody Bevan via 4D_Tech <4d_tech@lists.4d.com> a écrit
> :
>
> Hello Ferdinando:
>
> This list is really not used anymore.
>
> I would recommend that yo
Hi Ferdinando,
schematicaly:
selection to arrays (ID, name, surname, date of birth, sex)
for($i;size of array;1;-1)
if (values $i # values $i-1)
remove from arrays
end if
end for
query with array (arrayIDs)
and you have the duplicates
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> Le 22 oct. 2022 à 12:04,
> Le 27 janv. 2022 à 22:55, Alan Tilson via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> Hello Keisuke,
> You make it sound simple, so how do I "parse the xml"?
> Open it in a text editor and search for "reject null values"?
> Thanks!
Hi Allan,
it seems to be "never_null".
But if you
e listbox based on array, when i insert one row in the 5
> arrays contained in the list box, i have a red message in the list box area
> with this message " 4d wIEV PRO LICENCE REQUIRED
I suppose you're using a command or some property that requires that license,
see here:
<ht
use assert:
for ($i;1;...)
assert($i#1;"stop on first iteration only")
end for
Another cool thing with assert is you can alt+clic on the "Continue" button in
the dialog; it means "ignore all comming false asserts for this process". I
tend to use ASSERT much more tha
> Le 15 janv. 2021 à 16:54, Neil Dennis via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> My last complaint, and it is minor is that I use dark mode on my computer.
There is a dark mode setting in 4d discuss preferences.
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It works the other way round :-)
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> Le 15 janv. 2021 à 13:17, Jeremy Roussak via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> I have all non-English conversations muted as well, but I’m still given the
> opportunity to test my rusty schoo
s that [table] will probably inflate/deflate:
save, process, delete… Even if the documents have to be processed later, I
think I'd move them to a folder on server rather than in the data.
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between macOS and smb shared volumes. Everything's
fine when I copy another way (ftp, for example.)
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y move doc into the path.
I do like this and strongly recommend it. But don't expect it guarantees the
target shared folder will be here when you move files from local to shared, you
just reduce the time you need it to be here. Shared volumes on a 4D server are
my personal nightmare, specially
s
48862725,2287590)
- uuid: no limit about the encoded number, but I don't know if performances are
better than real
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ex based on a "fixed length" field is always more
efficient (search, update…) than one based on a "variable length" field.
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lds than longitude, make some tests and analyse
query plan/query path to see if that index is required.
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er they say, knowing that we did not made
great efforts for that use.
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, while using uuid gives a good distribution (the opposite would be
unexpected and boring…). If you're interested, there's a link to a small test
4db at the bottom of the tread, it's quite easy to add another generator and
try it.
>
> Someone has a suggestion.
It may change nothing to this problem, but first I'd move to 13.5 or 13.6.
What is different since "some days": more data, more clients, nothing..?
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s
custom date formats.
Any idea?
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For each ($test_t;$test_c)
ASSERT(Match regex($rx_t;$test_t;1;$pos_al;$len_al))
End for each
I'm not sure the starting anchor "^" suits your case, it depends on how you
manage the method. For my own, I alway
> Le 4 déc. 2019 à 10:55, Jeremy Roussak via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> On 4 Dec 2019, at 08:26, Arnaud de Montard via 4D_Tech <4d_tech@lists.4d.com>
> wrote:
>>
>> Hi Peter,
>> I'm not sure it always works on mac, becaus
Not only 4D (page seems old, but you get the idea):
<https://gabriel.nagmay.com/2009/09/firefox-respects-macintosh-preferences-disrespects-users/>
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ecord) in the
> highlighted selection and apply this value.
Hi,
schematically, I do this:
save selection
use userset
selection to array
replace values in array
array to selection
use selection
highlight userset
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*
ERROR CALL method, after a while I put that
method back in the host :-(
Maybe I missed something, like using an object reference in v17…
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that note. When 4D does not recognise me I delete all cookies
containing "4D", usually it stops being blind and deaf.
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title_t)
LISTBOX DELETE COLUMN(*;$LBname_t;1)
End for
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adsheet, insert a single quote (or use some "0"
format once opened in spreadsheet)
- to transfer data to another system, nothing to change
As Dani, I avoid the use spreadsheet to control a csv, the "automatic cell type
recognition" (text, num, bool…) will o
e.
To query with array, another solution:
<https://forums.4d.com/Post/FR/13701036/1/13701037#13705082>
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s. If it's the former, I'd suggest the use of GET TEXT KEYWORDS to
produce 2 arrays of words to compare. In the resulting array words keep ordered
as in the text, it may help if the wanted match is the sequence of words.
\r", but that just inserted those specific characters.
> :)
Hi Chip,
you may write a macro for that, schematically:
- open method, select the line, execute macro
- macro method reads the line, makes what you want, replaces the original.
I did something like that to tran
> Le 23 juil. 2019 à 14:53, Koen Van Hooreweghe via 4D_Tech
> <4d_tech@lists.4d.com> a écrit :
>
> I personally do prefer PDF Viewer instead of picture fields or web areas (on
> mac).
Another solution here:
<https://forums.4d.com/Post/FR/28377705/1/30106287#28403909
(BBEdit, notepad c++…) there's an option in the "save as"
to add it or not.
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stbox "flavours" (selection, collection or entity sel).
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Uns
b Lavaux's XL plugin, the demo mode is enough for your need (and it's
worth it):
<https://www.pluggers.nl/product/xl-plugin/>
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s already supposed to…
More generally, I don't know if your client can hear that, but he should be
sensitized to prepare the near future. I'm moving many apps on 17R4 because
it's 32+64, write plugin works and write pro is mature.
--
: ($in_l=Page down key)
$out_l:=0x21DF
Else
$out_l:=Character code("¿") //unknown
End case
End if
$0:=$out_l
//_
++
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clean and safe
code."
Documented = more than safe ;-)
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ET ( docRef ; receptBlob ; aLotOfBytesButNotTooMuch )
but it depends what's your goal. I had to use that with huge text document to
import. Even in 64bits, the limit is about 1Gb (I suppose the documentation 2Gb
limit means bytes, not chars).
rface and want to
print it… then you realise that many printing commands use "legacy" selection /
current record.
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ke command naming starting with a verb
when the chapter offers an obvious prefix (as listbox, web services, dom, etc).
I'm tired to go through the whole Köchel catalog to find an unpredictable
command name.
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ructure
> digram I need using either of these. Surely there are database schema
> [structure] diagram printing applications out there someplace that someone
> has used successfully. I am also open to 4D based solutions.
See this Vincent's contribution:
<https://forums.4d.com/Post/FR
FR/28377705/1/28639612#28403909>
Strangely, using right click to print, the pdf document is printed 50% reduced
at center of page: any idea, someone?
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ar as I can remember when a friend showed
me, this plugin allows to work in a very similar way to Print object.
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and let the command do the
rounding job. And once printed, a pixel is small (~0.35mm)…
Strangely I've noticed that GET MOUSE(x;y;b) returns x & y as real numbers:
something to do with retina? Else?
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would need to adjust the result?
Yes too ;-)
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ERT FROM TEXT($string;$charset;$blb)
$string2:=Convert to text($blb;$charset)
$offset:=4
$hex2:=Substring($string2;1;$offset)
$len2:=hexaToDecimal ($hex2)
$hello2:=Substring($string2;$offset+1;$len2)
ASSERT($len2=$len)
ASSERT($hex2=$hex)
ASSERT($hello2=$hello)
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**
s from Bruno Legay about epoch in the code
sharing zone:
<https://forums.4d.com/Post/FR/19709356/1/19709357#19709357>
<https://forums.4d.com/Post/FR/19709356/1/19709357#19710119>
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od in the
context of the form… In a recent 4d training, someone told me he had replaced a
lot of "On timer" old code with it.
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that will not allow to
get the table easily (tooth/teeth, story/stories, fish/fishes)
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oc.4d.com/4Dv17R4/4D/17-R4/Entity-selections.300-4085815.en.html>
"Entity selections can be "sorted" or "unsorted" (this point is discussed
below)"
and the § "Ordered vs Unordered entity selections"
I suppos
isplayed to client but not considered as code
that you can trace. You should try the usual shortcut (alt+cmd+right click) in
that window, I'm quite sure trace will occur on next line of code.
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llows to identify the function is great:
find regex("^FK_";property;1) -> foreign key
find regex("_p$";property;1) -> many to one relation
And these names are not supposed to change every day…
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***
ent.
For example this table:
[Human]
PK
FK_humanFather
FK_humanMother
Relations:
from PK to FK_humanFather: humanFather_f
from PK to FK_humanMother: humanMother_f
from FK_humanFather to PK: human_p, father_p, etc.
from FK_humanMother to PK: human_p, mother_p, etc.
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ed)
on timer
set timer(0)
job.do(please)
set timer(jobPostponed)
end case
Thinking after, there is surely more events to consider (On click, double clic,
menu, etc.)
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lay a form
is dialog, dialog or dialog.
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$out_l:=Character code("¿") //unknown
//$out_l:=0x2328
End case
End if
$0:=$out_l
//_
+
I use it this way:
$buttonTitle:=:="Validate "+Char(UI_KeyboardGetChar (Enter key))
OBJECT SET TITLE(*;"buttonName";$buttonTitle)
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data is very small, time to ask server to run the method and time to get that
little data will be the same. Some times:
- using SQL ~ 250 ms 1st time, then ~60 ms (I don't know why 1st time is
longer, BTW)
- loop ~ 9 ms (and the server can do something better for other clients)
--
away): using
system tables with SQL involves a request to the server, that ugly loop
doesn't. And if you compile it in a component it's reduced to nothing…
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A
table and check if a
relation exists for the current one (as above).
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U
heet
/ paste in 4D than export the document as csv and open it after. They do like
it.
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umbers, I can add
or subtract easily. BTW date and time in a spreadsheet are of the same family:
a number where integer portion = day and fractional portion = hour.
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resulting char could vary, depending on the OS "flavour"
(see bottom of list, many codes were represented on mac with no equivalent on
windows).
In unicode, one code = one char and, definitely, 165 is "¥" and 0x2022 is "•".
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there was a nice example of tab control made in svg in the "svg goodies" demo.
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ign "shared parts" of UI.
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hods, often a prefix representing a group of the same "module"…
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orks already on server side… If we had events
triggered (add, modify, delete) by structure objects (methods, forms) on server
too, life would be simple.
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Ar
sive.
Did you check there is no duplicate names at runtime (FORM GET OBJECTS)?
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U
xed here:
<https://bugs.4d.fr/fixes?version=16.1_HF2>
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TO ARRAY($ut_at;"aa")
APPEND TO ARRAY($col_al;702)
APPEND TO ARRAY($ut_at;"zz")
APPEND TO ARRAY($col_al;703)
APPEND TO ARRAY($ut_at;"aaa")
APPEND TO ARRAY($ut_at;"aaa")
APPEND TO ARRAY($col_al;1024)
For ($i_l;1;Size of array($col_al))
$ref_t:=Utl_sp
)
Sannyasin,
• using on display detail will call the server every time a record is displayed
and will result in a very slow list (not to say insupportable if you access
server through WAN)
• using SET AUTOMATIC RELATIONS, lines content are calculated on ser
tamp.301-3730728.en.html>
>
> https://blog.4d.com/timestamp-is-now-available/
> <https://blog.4d.com/timestamp-is-now-available/>
I had forgotten :-(
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t in seconds:
<http://forums.4d.com/Post/FR/14701949/1/14701950#14928049>
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pe Daylight Saving
Time (DST) could be abandoned next year - good for 4D.
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At each time change, the alert throws: server not updated, I
have to restart it. I don't know if this bug is corrected and, if it is, since
when.
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nk in a browser as well.
Firefox works, AFAICR.
Another problem will come with CSM in v17: nice new format but no anchors…
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old stuff (tables, forms, etc.) will be deleted after the new app is
released.
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a set. I notice
> that set is visible to the client as well.
EoS method and trigger are executed in the same twin process, see "Execution
Context" here:
<http://doc.4d.com/4Dv17R2/4D/17-R2.1720/Execute-on-Server-attribute.300-3925945.en.html>
t set shortcut (*;"allNamedTheSame"; Shortcut with Carriage Return) ;-)
I noticed this works better with all keyboards than hardcoded setting (legacy
dialog)
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> Le 9 oct. 2018 à 17:50, Jody Bevan via 4D_Tech <4d_tech@lists.4d.com> a écrit
> :
>
> [...]
> 1. Is this the right location I should be saving this kind of information?
Unless it represents a huge amout of data / traffic, I think I'd choose to
write this on server
imal_Link..Animal
This use of RELATE ONE SELECTION is not documented but works (or used to work,
it's a while since I didn't try)
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(the object says it all)
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should have access to this:
>> http://kb.4d.com/assetid=78020
>
> Hmm, I went to Summit in Paris and do not have access to the article.
Do you have many mail adresses?
If I use the registered email, it works.
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se ;-)
append text to file
set text array to zero
end if
end loop
- see also >http://forums.4d.com/Post/FR/19466463/1/19466704#19466704>, I
didn't test
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amount of text can be hold this way, very fast.
About the 2Gb limit of text, I noticed the limit in number of chars is about
the half.
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When I use 4dv16r6, I'd like the alt clic shortcut on a command to open the
good version of doc.
Of course not, it drives me nuts.
Any idea?
Where are documented the links we can use?
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ey were not recognised. I may be wrong but I suppose formulas and editor rely
on common stuff…
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", like SQL or html…). I
used the code under to establish the bad names list
<http://forums.4d.com/Post/FR/14532263/1/14536260#14536260
<http://forums.4d.com/Post/FR/14532263/1/14536260#14536260>>
then I began to rename…
(note: such a "mass" renami
> Le 6 sept. 2018 à 08:20, Arnaud de Montard via 4D_Tech <4d_tech@lists.4d.com>
> a écrit :
>
> Hi Tim,
> I did not get your first response from the list. No matter as I can read it
> cited under Richard's response, but I wonder about that gap??
oops I'm wrong
the interpreter):
<https://screencast.com/t/VUhPZ4PI <https://screencast.com/t/VUhPZ4PI>>
why line 6 is not recognised?
I thought I could put anything before the token, but it sounds like I have to
use the hardcoded table name or the wildcard, and n
Hi Tim,
I did not get your first response from the list. No matter as I can read it
cited under Richard's response, but I wonder about that gap??
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/ use wildcard:
TimeStampToText ([@:2]@:3)
Surely something to do with dot notation, but I wonder if it's a bug or
something I miss?
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le]longint=Num("123xxx")
We are not surprised that values = 123 are found. If you consider that 4D uuid
field is a 2^128 integer (scalar number), it's the same thing that happens to
your trailing "xxx" and those above.
BTW, I think that uuid fields with an alpha icon in structure it is
> Le 16 août 2018 à 01:29, Chip Scheide via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> interpretably it does work - with locals!
>
> tomorrow Ill try compiled...
Second syntax of MULTI SORT ARRAY does not work
code :-)
BTW, it seems finally you use a picture var over the cell? Makes me think that
besides getting blind, my english is ununderstandable ;-)
<http://kb.4d.com/resources/inug?msgid=GmailId165352a46312ce6a
<http://kb.4d.com/resources/inug?msgid=GmailId165352a4631
d.com/Post/FR/12933938/2/15016907#15016907>>
--
Arnaud de Montard
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always missed a *fixed* line spacing in the plugin: does it exist
in write pro?
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Arnaud de Montard
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coordinates, same picture, could work.
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Arnaud de Montard
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they found refuge in an ice cream shop.
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Arnaud de Montard
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/blog.4d.com/detailed-analysis-database-structure/>
• on 4DBB, search for "flatStructure" (off today, I can't paste a link), it's a
component that gets xml, converts it to object, then reads table, fields,
relations and indexes from it.
--
Arnaud de Montard
*
,
comments TEXT,
PRIMARY KEY (PK)
);
/* indexes */
CREATE INDEX idx1 ON Agence (PK);
CREATE INDEX idx2 ON ContactAgence (PK);
/* relation */
ALTER TABLE ContactAgence ADD CONSTRAINT rel1 FOREIGN KEY (FK_agence)
REFERENCES Agence (PK);
++
Note: I never create such relations…
e adapted for object fields.
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Arnaud de Montard
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