All time

As the title mentions, I'm trying to determine how best to handle an issue with nested data. Essentially I have a setting like the following:

Object A has a transient property with an array of Object B. I want to create a level with a list of Object B. I also want this level to contain properties belonging to each object B.

So I have a layout of something like

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InterSystems Developer Community is a community of 25,659 amazing developers
We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!

Hello Everyone, I am new here and I am learning docker to crack my upcoming interviews. I am confused whats the steps in a deploy process for Dockerized Apps stored In A Git Repo? I am so confused about this, Can anyone know about docker programming. If yes then please suggest some more tips which are useful for my future point.

Thanks Inadvance

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Hi Developers,

New video, recorded by @Stefan Wittmann, is already on InterSystems Developers YouTube:

🗣 Multi-Inheritance in a Multi-Model Environment

https://www.youtube.com/embed/xjB1sik8a_E
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Question
· Aug 27, 2019
Tools to find a class

Good morning,
I'm working with a persistent data class and need to know which classes are evoquing it.
Is there a tool in the system to do it, similar to use the F12 key to follow a class?

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Article
· Oct 22, 2025 2m read
Tips on handling Large data

Hello community,

I wanted to share my experience about working on Large Data projects. Over the years, I have had the opportunity to handle massive patient data, payor data and transactional logs while working in an hospital industry. I have had the chance to build huge reports which had to be written using advanced logics fetching data across multiple tables whose indexing was not helping me write efficient code.

Here is what I have learned about managing large data efficiently.

Choosing the right data access method.

As we all here in the community are aware of, IRIS provides multiple ways to access data. Choosing the right method, depends on the requirement.

  • Direct Global Access: Fastest for bulk read/write operations. For example, if i have to traverse through indexes and fetch patient data, I can loop through the globals to process millions of records. This will save a lot of time.
Set ToDate=+H
Set FromDate=+$H-1 For  Set FromDate=$O(^PatientD("Date",FromDate)) Quit:FromDate>ToDate  Do
. Set PatId="" For  Set PatId=$Order(^PatientD("Date",FromDate,PatID)) Quit:PatId=""  Do
. . Write $Get(^PatientD("Date",FromDate,PatID)),!
  • Using SQL: Useful for reporting or analytical requirements, though slower for huge data sets.

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Hi Community,

I have a CSP page I am developing with the intent of pulling files from an SFTP site and placing them in a folder on the local network.

I am having an issue where the CSP page is catching a JS error. The error in the browser is - A JavaScript exception was caught during execution of HyperEvent: SyntaxError: Unexpected identifier 'downloading'. (However, the unexpected identifier changes after refreshing page, or after removing the Write statement with the work 'downloading' in it.)

I think I have narrowed it down to a piece of the Javascript code -

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In Cache End of file throws error but in IRIS no indication of End of file. I have to do an explicit $ZOF. How are you handling/detecting End of File in IRIS?

In cache this line will throw End of file error - F PREC=1:1 U FILE R REC D SOMETHING

But in IRIS this goes to forever, has anyone noticed this behaviour in IRIS?

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Good afternoon! 👋 We would be very grateful if you are kind enough to read and respond to our request 😊.

We need given an Authentication request issued towards our OAuth 2.0 authorization server; that in case of error, the responded message is customized.

Currently if we point from POSTMAN to:
https://[IP]:[Port]/oauth2/token?grant_type=client_credentials&scope=my/scope

Username: Erroneous
Password: Erroneous

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Question
· Nov 18, 2023
How to deciper log text

Hello, I am going through the log files of my instance and I wanted to know what each part of it meant. I've tried going through the documentation but I wanted clarification.

I understand there is a log viewer, but I want to understand this directly through the text file. For example, if I were to read this-

"11/06/23-21:00:46:680 (444) 0 [Utility.Event] Performing Journal Recovery"

What would each part of this line be called?

Thank you for your assistance.

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How can I create a calculated member in Analyzer using MDX for the following logic?

WHEN 'F' THEN 'FEMALE'
WHEN 'Female' THEN 'FEMALE'
WHEN 'M' THEN 'MALE'
WHEN 'Male' THEN 'MALE'
WHEN 'U' THEN UNDIFFERENTIATED'
WHEN 'UN' THEN UNDIFFERENTIATED'
WHEN 'Undifferentiated' THEN UNDIFFERENTIATED'
ELSE 'OTHER'
END

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I want to make the LOCATION for a %Stream.FileCharacterGzip property we have in a class parameterisable (as in stored in a global), so it can be different for different customers. Is that possible? I've tried doing it a few different ways:
Creating a parameter
Parameter STREAMLOC = {^websystem("auditstream-location")};
then I tried to reference that in the

Property HTMLZIPDoc As %Stream.FileCharacterGzip(LOCATION = ..#STREAMLOC);

but the compiler doesn't like that.

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Hello All,

InterSystems Certification has redesigned their IRIS Integration certification exam, and we again need input from our community to help validate the topics. Here's your chance to have your say in the knowledge, skills, and abilities that a certified InterSystems IRIS Integration Specialist should possess. And, yes, we'd like to hear from you Ensemble users as well!

Here's the exam title and the definition:

InterSystems IRIS Integration Specialist

An IT professional who:

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Hi Community,

See a demonstration of InterSystems IRIS Adaptive Analytics and get a detailed description of this new offering for analytics end-users:

Demonstration: Adaptive Analytics in InterSystems IRIS

https://www.youtube.com/embed/mmT5g8G-8Bo
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Hi everyone.

I wonder, whether is it possible to get description of emoji in COS.

For example, I have data with emojis like 🙏 in database, that should be delivered to transaction system via service. But service doesn't support emojis, so I want to convert emoji to its unicode description like "Person with Folded Hands". Is it possible? I'll be grateful for help

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