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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.

When using VS Code for Objectscript, is there a way to directly open % classes, like %Library.String, without needing to search for a property of that type and right clicking->"Go to Definition"?

I know it is possible to use "system=1" in the workspace uri definition to see all the % classes, but that tends to clog up the left side viewer with many extra directories. There is also the option in the settings to selectively hide some by defining files.exclude, but it seems fairly complicated to set up a filter for exactly the relevant directories.

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Hey Developers,

Meet the latest video on InterSystems Developers YouTube:

⏯ Configuring VS Code Workspaces for Multiple ObjectScript Connections

https://www.youtube.com/embed/CGEqFea0hh8
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Hi folks!

We have a bunch of templates on OEX that provide a handy foundation for building a particular application with IRIS. And the basic principle of each and every template is that we take vanilla IRIS images, load code, and files into the image using Dockerfile, and create a new docker image as a solution. And then we develop running this image and rebuilding it when returning to development.

Some developers ask me why we need to build the docker image to work with the code. Indeed, if at the end of the day I need to develop a ZPM package and not a docker image why don't run the vanilla image and load the code and everything in it?

The problem I have with the building image approach is that often I can wait a lot to build an image and it fails on some Objectscript problem in the source that I cannot fix as the image is not building. and

Any thoughts? How do you develop with docker?

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If you’re on the fence about learning InterSystems ObjectScript, we’re making the decision a whole lot easier.

We just updated the “Getting Started with InterSystems ObjectScript” learning path with 3 new 5-minute videos — and a capstone exercise to help you pull together everything you’ll learn.

🤝 Get an introduction to InterSystems ObjectScript

🤿 Dive deeper into commands and functions

🤔 Understand data types and variables

👨‍💻 Create a class definition

Do it all in our updated learning path, Getting Started with InterSystems ObjectScript.

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Hey Community,

Don't miss the new video on InterSystems Developers YouTube channel:

⏯ Working with ObjectScript Classes in VS Code for Client Side Editing

https://www.youtube.com/embed/nZd3UGDu4Rc
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Let's consider these two ways of passing an obj to a function:

//var is a structured obj
(1) do ..methodX(var)
(2) do ..methodX(.var)

In c++ if we pass an obj by reference like in (2) we save a lot in computation because we are not copying the whole object, and when the object is modified within the function it is modified also for everyone.

In this case does (2) achieve any better performance than (1)? Is passing with the "." save any computation? the object is copied anyway?

Is there a simple way of passing obj to a function?

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Article
· Sep 7, 2022 7m read
REST JSON webservices presentation

Hello Community!

This article gives an overview of the REST JSON webservices developed for TrakCare.

These webservices allow users to access TrakCare data from outside of the software, mainly through external apps.

They are developed in REST with ObjectScript, and they allow data access in four modes:

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Hello,

I need to run some clean up routine in the background so loss of my terminal session won't stop the process.

I found the JOB command in the documentation.
JOB | ObjectScript Reference | InterSystems IRIS Data Platform 2022.1

When I try it, it doesn't seem to be doing much. I also expected this to become visible in the Background Tasks but that doesn't happen either.

Probably I am missing something.

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Question
· Aug 15, 2022
Security Scans

We are looking for a 3rd party application that can scan our IRIS based Cache Object Script code for vulnerabilities or coding weaknesses. There are many, many applications/vendors out there that do code scanning but none seem to support Cache Object Script or scanning the IRIS environment. If anyone is aware of a company/product that can scan our code / IRIS environment, I would love to hear about it.

Thanks in advance for the help.

Mike

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Hi Developers!

Sometimes we need to import CSV data programmatically to InterSystems IRIS either from CSV or from URL. And we expect the class with proper datatypes to be created and the data to be imported.

I published a module csvgen on Open Exchange which does exactly that.

If you just need the CSV file be imported into IRIS you can do the following:

USER>do ##class(community.csvgen).Generate("/usr/data/titanic.csv",,"Data.Titanic")

Class name: Data.Titanic
Header: PassengerId INTEGER,Survived INTEGER,Pclass INTEGER,Name VARCHAR(250),Sex VARCHAR(250),Age INTEGER,SibSp INTEGER,Parch INTEGER,Ticket VARCHAR(250),Fare MONEY,Cabin VARCHAR(250),Embarked VARCHAR(250)
Records imported: 891
USER>

Or if you have the CSV on the internet, e.g. COVID-19 Data on Github you can get the data in the following way:

USER>d ##class(community.csvgen).GenerateFromURL("https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_daily_reports/05-29-2020.csv",",","Data.Covid19")

Class name: Data.Covid19
Header: FIPS INTEGER,Admin2 VARCHAR(250),Province_State VARCHAR(250),Country_Region VARCHAR(250),Last_Update DATE,Lat MONEY,Long_ DOUBLE,Confirmed INTEGER,Deaths INTEGER,Recovered INTEGER,Active INTEGER,Combined_Key VARCHAR(250),Incidence_Rate DOUBLE,Case-Fatality_Ratio DOUBLE
Records imported: 3522
USER>

Open Exchange app
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In this article you will have access to the curated base of articles from the InterSystems Developer Community of the most relevant topics to learning InterSystems IRIS. Find top published articles ranked by Machine Learning, Embedded Python, JSON, API and REST Applications, Manage and Configure InterSystems Environments, Docker and Cloud, VSCode, SQL, Analytics/BI, Globals, Security, DevOps, Interoperability, Native API. Learn and Enjoy!

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Hey Developers,

Enjoy watching the new video on InterSystems Developers YouTube channel:

⏯ What is Embedded Python

https://www.youtube.com/embed/X84TSf1u9DY
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Question
· Aug 1, 2022
Email Template

Does anyone have any pointers or maybe familiarity of making Email templates in Objectscript?

I'm currently trying to implement Televisits with our system and am needing to send an email to the patient. I'd like to make it a nicer looking email which will require a good amount of inline CSS. I currently have a method, but is very much a sore sight for the eyes.

I was wondering if there was a way I could use Embedded HTML and pass that into the DO msg.TextData.Write command with the ##class(%Net.MailMessage)?

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I am reaching out to find out if anyone has come across a similar dilemma.

In my current role, I have been asked around the best way to design some patient labels for a client.

I primarily would stick to what I know and veered towards designing the label in ZPL and then creating a Abstract Class to call the ZPL code, however I have been asked why not to design via JReport. The patient labels will be processed via thermal ink printers primarily Zebras, I am wondering if anyone out there has come across this or would recommend to stick to what you know.

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Article
· Jul 19, 2022 4m read
Caution with Mixing OO and SQL

Mixing Object syntax with SQL is one of the nice features in Object Script. But in one case, it gave strange results, so I decided to isolate the case and describe it here.

Let's say you need to write a classmethod that updates a single property on disk. Usually, i would write that using SQL like this :

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There are many ways to generate excel files using Intersystems, some of them are ZEN reports, IRIS reports ( Logi reports or formally known as JReports), or we can use third party Java libraries, the possibilities are almost endless.

But, what if you want to create a simple spreadsheet with only Caché ObjectScript? (no third party applications)

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