New post

#Code Snippet

7

Code snippet is a programming term for a small region of re-usable source code, machine code, or text.

I'm aware of two ways to get list of files in a dir:

set dir = "C:\temp\"
set rs = ##class(%File).FileSetFunc(dir, , , 1)
do rs.%Display()

and:

set dir = "C:\temp\"
set file=$ZSEARCH(dir_"*")
while file'="" {
   write !,file
   set file=$ZSEARCH("")
}

Yet they bot return only files and directories in a current directory, but not files in subdirectories.

I suppose I call one of these recursively, but maybe there's a better solution?

1 25
1 3.9K
Question
· Feb 28, 2020
SQLCODE Error -400

I have a code block in a BPL. I have the below SQL and code. All variables have been declared and set. When I run the SQL, if there are no values returned, I get 100 for the value of SQLCODE when I perform the FETCH, which is correct. If values are returned, I get a -400 error when I perform the first FETCH. I've investigated, but cannot find the reason for a -400 error. Hoping someone out here understands this and knows what's wrong.

0 2
0 1.8K

A customer is using Caché online backups and needs to automatically purge the cbk files with a scheduled task.

This is a wheel has been reinvented uncountable times already and I know somebody out there has a well written, extremely robust version that has already stood the test of time.

Does anyone have a nice routine/class/task for purging old Caché backup files?

0 10
1 1.6K

Hello.

For debugging purposes I sometimes need to display stack information to the current device or save it (to a global for example).

There is this snippet offered in documentation:

ClassMethod StackToDisplay()
{
    For loop = 0:1:$Stack(-1) {
        Write !, "Context level:", loop, ?25, "Context type: ", $Stack(loop)
        Write !, ?5, "Current place: ", $Stack(loop, "PLACE")
        Write !, ?5, "Current source: ", $Stack(loop, "MCODE")
        Write !
    }
}

And to save stack to a global there's always an exception method:

0 11
0 1.5K
Question
· Aug 5, 2021
Convert hexadecimal to base64

Hello, first of all thanks for your time reading our question 💭

We would need to be able to transform a hexadecimal string to a base64 coded one. 🔄

To be specific, our use case is this:

1º We have our hexadecimal as follows:

4C5803040101020179C3913EC3BA7C4C580708010101021824584D4C

2º We convert it to ASCII:

LXyÑ>ú|LX$XML

using this online tool:

0 5
0 1.5K

Hello,

I am trying to use %ZEN.proxyObject to send out in JSON format so I do:

set tProxyRequest = ##class(%ZEN.proxyObject).%New()
set tProxyRequest.notanumber = "28001"
set tProxyRequest.aboolean = "true"

set tBody = ##class(%GlobalCharacterStream).%New()
do ##class(Ens.Util.JSON).ObjectToJSONStream(tProxyRequest,.tBody,"aelotwu")
w tBody.Read()

and I get:

0 10
0 1.5K

Hello,

I have a very simple web service that I'd like to secure via SAML Authorization with X.509 Certificates. I am, however struggling with documentation and my lack of cryptographic skills. (I do this just for educational purposes now, but need to use it in the future)

Does anyone have an example that shows how to construct a SOAP Client with adding all necessary security headers manually or point me to a decent learning resource?

Thank you very much!

2 1
2 1.3K
Question
· May 9, 2018
Standardizing Error Logging

I have been tasked with creating a class that will handle error logging in a consistent manor for an application I am working on. The need is to have all variables in the calling method logged along with some other information.

The example given was zwrite which is exactly what I need, however, I somehow need to capture the output of ZW and put it into a database table. Any easy way to capture this data? I was able to dump ZW to a file, but that is not ideal.

Any help is appreciated!

0 8
0 1.2K

Hi,

I am new to Cache and I am trying to convert a JSON string (msgdata) that contains a JSON payload to an object to be saved into a Driver. Entity table. I am running into 2 issues and would appreciate any help:

1) It seems that when the 1st element of a list within the payload (Choices) is an empty string, after I call %ConvertJSONToObject, the obj.%data("payload").Choices contains just 1 empty element, removing the next 3 valid values (10,20,30). The same does not happen if I change the input to [10,20,"",30], in this case it works correctly.

0 3
0 1K

Hello Everyone,

I'm want to know, what is more common for your company to use, the abbreviation syntax or the complety name of commands, and why?

Ex.

S VAR=10 / D FUNC^ROUTINE F 1:1:1000

Set VAR=10 / Do Func^Routine / For 1:1:1000

set var=10 / do func^routine / for 1:1:1000

Here in my company, we are familiar with the abbreviation syntax, because to spell is more faster.

2 35
0 1K

Hello,

We would need some help,

Our aim is to send an image as binary data using a REST Service

Currently we do the following:

1 We get from the external system a binary image in our REST Operation

2 We encode it to Base64

set linea=""
    while (tResponse.Data.AtEnd = 0) {
        set linea = linea_$system.Encryption.Base64Encode(tResponse.Data.Read(57))
    }

3 We send it to the Process in a Response Message:

1 4
0 965
Question
· Jan 13, 2021
Handling Errors

I have a case where our EMR is sending data, but not all the values needed for the Ancillary are valued properly and causes that message to error/halt processing on the Ancillary system, not ideal but its what they do. I would expect them to still process the message except that 1 field, but they don't.

I want to add validation to make sure certain fields are valued correctly for the Vendor.

So I add some statements to take those items that don't pass this validation out to a batch file with headers.

0 9
0 888

I have multiple files with different columns, first 9 values are fixed, so i want to ignore the first value, and next 8 values i want to combine into one value using ^ sign

Current Format

|||||||||||^^||||||^^|||||||||||||||||
|||||||||||^^||||^^|||||||||||||||||||||||
|||||||||||^^|||^^||||||||

Desired Format

^^^^^^|||^^||||||^^|||||||||||||||||
^^^^^^|||^^||||^^|||||||||||||||||||||||
^^^^^^|||^^|||^^||||||||

Reading each line from the file use below code.

0 11
0 868
Question
· Aug 31, 2017
Extract piece of string

Hello guys,

I was wondering whether there is another alternative to extracting a certain string out from a bigger one, rather than using the function $piece.

Maybe regular expressions? Another specific function?

Example:

Big string:

NAD+SLA+++TextIsHereNAD+SLA+++TextIsHere

String I want to extract:

TextIsHere

Function I'm already using:

0 3
0 726