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#ObjectScript

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InterSystems ObjectScript is a scripting language to operate with data using any data model of InterSystems Data Platform (Objects, Relational, Key-Value, Document, Globals) and to develop business logic for serverside applications on InterSystems Data Platform.

Documentation.

Hi everyone.

I have a use case where I'm using embedded SQL within a Business Process to interact with a SQL table. However, when it comes to deployment into our production, the table wont form part of the deployment package created from the production.

Beyond manually creating the table on the production system, is there a standard way of ensuring that a table needed for a class is created during deployment?

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I am making a POST request to an API. In the case of an error, I don't know what parameters the response JSON will contain (they will change depending on the error). I am converting the response stream to an object but then I need a way to loop through all the properties and access their values. The following code is making the POST request, reading the response, and trying to add all the error messages to an array. But I can't iterate over the properties of the tProxy.errors object because it is a %ZEN.proxyObject. Is there a better way to do this?

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  • The idea of this package is to compare the performance of columnar storage inside IRIS without wrapping it to some foreign platform that is not my world
  • In addition, I do not want to measure network performance between 2 containers, but inside a closed IRIS environment that I have fully under my control
  • Even the use of SMP or some other browser-based presentation has some influence that I want to avoid.
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Hey everyone.

I'm currently looking at a process where we're utilising the Class Ens.StreamContainer, and was looking to do some deletions outside of any purge routines.

Having been burned before, I wanted to make sure that deleting the container also deletes the contents within.

From looking in the class, the %OnDelete ClassMethod appears to be removing an index from a search table and nothing more.

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Hello community!

Is there any method/property/way in Caché to obtain something like unique identifier for installed Caché system? The idea is to get the identifier that will differ on any other installation/machine/etc, but will forever remain the same for the current installation, even if $zv changes (in case of update) or any data is removed from the database.

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Hi Developers!

As discussed in previous parts of Package Manager stories to turn your IRIS application into a deployable package you just need to introduce the module.xml file into the root folder of the repository and describe all the resources.

I’m pleased to introduce you to a new project template on Open Exchange which contains examples of how to make different types of resources of your InterSystems IRIS application a part of the ObjectScript package and so make the deployable ObjectSctipt package.

Let's see how you can describe your application resources using this template project as an example.

See the details below.

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Article
· Jan 16, 2021 3m read
Creating and listing XData definitions

Hi InterSystems Community!

The ObjectScript language of InterSystems IRIS has the ability to extend classes using a very interesting feature called XData.

It is a section in your class that can be used to create custom definitions to be used within the class itself and also externally.

To create one or more XData definitions for your class is very easy, see the example:

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We are running Batch job in scheduled task and the messages are picking in single session and it is not easy to trace the record.

I used the Set ..%SessionId= "" at before sending the message to BP but I see the session Id is '1' created for each message.

Is there anyother way to create new session for each message sending to BP?

Thanks,

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Hello!
I am trying access each "name" tag in the xml-file down below and want to display them through the trace in the production:

<?xml version="1.0"?>
<staff>
<doc type="consultant">
<name first="David" last="Marston">Mr. Marston</name>
<name first="David" last="Bertoni">Mr. Bertoni</name>
<name first="Donald" last="Leslie">Mr. Leslie</name>
<name first="Emily" last="Farmer">Ms. Farmer</name>
</doc>

</staff>

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HI *,

So last night I was doing a deployment which had a query to select from a large dataset of joined tables, to iterate through and populate data in a new table.

This was done in a classmethod using embedded SQL and the %PARALLEL keyword.
On a testing environment with the same dataset, this worked perfectly a few days earlier.

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I'm wondering what the best practice is for handling %Status values within the terminal. 
1. set tSC=...
    do $SYSTEM.Status.DisplayError(tSC)
 
2. set tSC=...
   zwrite tSC

3. An alternative?

Is there a meaningful difference between the two? Should one be used over the other for any reason? Should something else be used?

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Hello everyone,

Recently, I've been working on a Business Process that processes a large JSON FHIR message containing up to 50k requests in an array within the JSON.

Currently, the code imports the JSON as a dynamic object from the original message stream, obtains an iterator from it, and processes each request one at a time in a loop.

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Article
· Jul 16, 2024 6m read
Method or Class Method?

For programmers new to ObjectScript, one question will inevitably arise: “What is the difference between methods and class methods?” A typical answer would be: “A class method applies to a class, but a method applies to an instance of that class.” While that answer is correct, it lacks important information on how these methods di

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Hey Developers!

Do you want to reap the benefits of the advances in the fields of artificial intelligence and machine learning? With InterSystems IRIS and the Machine Learning (ML) Toolkit it’s easier than ever.

Join InterSystems Sales Engineers, @Sergey Lukyanchikov and @Eduard Lebedyuk, for the Machine Learning Toolkit for InterSystems IRIS webinar on Tuesday, April 23rd at 11 a.m. EDT to find out how InterSystems IRIS can be used as both a standalone development platform and an orchestration tool for predictive modelling that helps stitch together Python and other external tools.

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Article
· May 30, 2022 3m read
ObjectScript Syntax For GitLab

Hi Community,

Recently, I migrated a series of Objectscript repositories from XML to UDL format.
After the migration, I was a bit disappointed by the presentation on the GitLab web interface.

Since Objectscript syntax is supported by GitHub, I thought It would be also supported by GitLab. Unfortunately, the library used by GitLab to highlight the code does not have an extension to support Objectscript.

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Hello!

I would like to find all classes not up to date in a namespace programmatically.

With IRIS Studio, we can see the single "+", but I don't know how to do that with a script.

Set sql = "SELECT ID, Name FROM %Dictionary.ClassDefinition WHERE NOT ID %STARTSWITH ?"
Set params($Increment(params)) = "%"
Set tResult = ##class(%SQL.Statement).%ExecDirect(, sql, params...)

If (tResult.%SQLCODE'=0)&&(tResult.%SQLCODE'=100) Set sc = $$$ERROR($$$SQLError, tResult.%SQLCODE, tResult.%Message) Quit sc

While tResult.%Next() {
    // if class not up to date ??
}

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We are writing a custom Business Operation to interact with a downstream SOAP web-service. Classes for the SOAP operation were originally generated using the SOAP Wizard, then modified. This is functioning OK, but we'd now like to set the ReplyCodeActions setting on the operation and are struggling to make it visible via the management portal. How can we achieve this?

The classes are structured like this:

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