Hi Devs!

Recently I was impressed by @Dan Pasco's article where he shares also how he uses terminal aliases.

Terminal aliases is a very powerful tool for developers and sys admins if you often need to call some cumbersome terminal expressions and make it shorter and cleaner. Here is the documentation.
Yes!

But what about Docker environments? What if you are fan of Docker dev environments but also want to keep using your favorite aliases with Docker as well?

Turned out it is very possible.

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Hi folks!

Have a question for those who are masters of interoperability.

I have a basic task of having one CSV with some data. I need to transform one column in the initial dataset and get the new csv with the same form.

What's the best approach with Interoperability?

Should I user record mapper?

Should I use streams, objects?

What is the best practice?

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Question
· Jan 19, 2019
Node.js Iris retrieve

Hi,

I'm using node.js to access to Iris.

Considering this globals:

^Customer(1, "Address", 1)="London"

^Customer(1, "Address", 2)="UK"

^Customer(1, "Name")="Jane K. White"

^Customer(2, "Address", 1)="Reigate"

^Customer(2, "Address", 2)="UK"

^Customer(2, "Name")="Peter R. Black"

^Customer(3, "Address", 1)="London"

^Customer(3, "Address", 2)="UK"

^Customer(3, "Name")="Paul J. Green"

I retrieve all customers with:

mydata.retrieve( { global: "Customer" },

"array",

function(error, result) {

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Hi Developers!

Those who use Dockerfile to work with InterSystems IRIS often need to execute several lines of ObjectScript. For me, this was a game of "escaping this and that" every time just to shoot a few commands on ObjectScript to IRIS. Ideally, I'd prefer to code ObjectScript without any quotes and escaping.

Recently I found a nice "hack" on how this could be improved to exactly this state. I got this from @Dmitry Maslennikov's repo and this lets you use Objectscript in a way as you would type it in IRIS terminal.

Here is what you have in dockerfile:

///
COPY irissession.sh /
SHELL ["/irissession.sh"]
RUN \
  do $SYSTEM.OBJ.Load("Installer.cls", "ck") \
  set sc = ##class(App.Installer).setup()
# bringing the standard shell back
SHELL ["/bin/bash", "-c"]
CMD [ "-l", "/usr/irissys/mgr/messages.log" ]
///

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Discussion
· Apr 23, 2021
External Language Server in 2021.1

Now that IRIS 2021.1 is available as a preview version, I would like to demonstrate a "new" feature. The Java Gateway has been around for a while now but in 2021.1 it has new skills. External Language Servers are available for Java, DotNet, and Python. Here is a quick - very quick - demo of using the External Java Server. Please don't focus solely on what this demo is doing but rather on what is happening in this demo. First, I acquire a gateway connection oref. This gateway connection is connected to the External Java Server - one of the External Language Servers.

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Hi Developers!

Recently we launched InterSystems Package Manager - ZPM. And one of the intentions of the ZPM is to let you package your solution and submit into the ZPM registry to make its deployment as simple as "install your-package" command.

To do that you need to introduce module.xml file into your repository which describes what is your InterSystems IRIS package consists of.

This article describes different parts of module.xml and will help you to craft your own.

I will start from samples-objectscript package, which installs into IRIS the Sample ObjectScript application and could be installed with:

zpm: USER>install samples-objectscript

It is probably the simplest package ever and here is the module.xml which describes the package:

<?xml version="1.0" encoding="UTF-8"?>
<Export generator="Cache" version="25">
  <Document name="samples-objectscript.ZPM">
    <Module>
      <Name>samples-objectscript</Name>
      <Version>1.0.0</Version>
      <Packaging>module</Packaging>
      <SourcesRoot>src</SourcesRoot>
      <Resource Name="ObjectScript.PKG"/>
    </Module>
  </Document>
</Export>

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Hello community! I'm working on an internal innovation effort at InterSystems considering our documentation/resources around upgrades. As part of this, I'd love to have your answers to any/all of the following questions, either via comment or (if you prefer your answers to be more private) direct message.

Thanks in advance!

What InterSystems products + versions are you running? ($zv is ideal.)

What makes you decide to upgrade?

What are your blockers to upgrading?

What is your process for evaluating and planning a possible upgrade?

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Hi Dev Community,

I have a persistent Document class that has a FileName string property and another Question class that has an optional one-to-many relationship with Document.

I'm trying to add a SqlComputed property to the Question class (docFileName) where docFileName = Document.FileName if there is a related Document or an empty string if there isn't one.

I'd prefer the property to be SqlComputed so that if Question.Document changes, Question.docFileName will automatically update.

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Question
· Jan 24, 2023
SQL Query needs optimization

Hi All,

I am having an SQL query (mentioned below). When I am running this query it is taking 90 min to retrieve all records (approx 1 million records).

Fetching data from 5 tables using inner join in cache. Relative cost displaying 10 million

I wan to confirm How this query can be optimized

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Are you all ready for something you wish you knew ages ago (or, in my case, a DECADE ago)? Open up a portal in your favorite instance and go to:

System Administration->Configuration->Additional Settings->Startup

Scroll down to "Terminal Prompt" and click 'Edit'. This allows you to edit what you see on your terminal prompt. You can change that to my current setting: 8,3,2

What does this do? It adds your instance name for your prompt. So now your prompt can look like:

DEVELOPMENT:USER>

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GA releases are now published for the 2020.2 version of InterSystems IRIS, IRIS for Health, and IRIS Studio!

A full set of containers for these products are available from the WRC Software Distribution site, including community editions of InterSystems IRIS and IRIS for Health.

The build number for these releases is 2020.2.0.211.0.

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Question
· Feb 13, 2023
IRIS mirror - arbiter status

Hi,

I have a IRIS mirror set

. all running on SUSE Linux

. each on a separate server

consisting of

Primary

Backup

Arbiter

My arbiter is the ISCagent.

Question

=======

Is there a Linux command showing me the status of the ISCagent as arbiter?

The systemctl service command below shows if the service is running but not if it is acting correctly as an arbiter.

I'm looking for a command like iris list which you can run on the Primary or Backup

===

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Discussion
· Mar 2, 2023
Code Golf: Isogram

It's time for a Code Golf round!

Isogram

A word or phrase that has no repeating letters, consecutive or non-consecutive.


Implement a method that checks if the received string is an isogram or not.
Assume the empty string is an isogram.
Ignore the letter case.

Allowed inputs: A-Z, a-z.

As usual, the shortest solution wins!

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1.Background

1.1 I met a few project that their interface servers were crashed. Cutoms wanted resume server as fast as we can. their servers are running at lan,and they can't use git,there are some namesapce in the server running different service,and usualy there is only one server.

1.2 In the message,it has property in type of characterstream,as you know,the message search page doesn't support filtering with property of characterstream,so it's so hard to find the messge you want.

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Starting installation
Starting up InterSystems IRIS for loading...
../bin/irisinstall -s . -B -c c -C /usr/irissys/iris.cpf*IRIS -W 1 -g2
Starting Control Process
Unable to allocate 242 MB shared memory...
Unable to allocate 232 MB shared memory...
Configuring minimum system...
Unable to allocate 139 MB shared memory...
Unable to allocate shared memory minimum of 139MB (errno=22)
Startup aborted.
Startup error. See messages.log for more information.
Call InterSystems Technical Support if you need assistance.

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Question
· Apr 2, 2022
Subscript with double quoted

Hi Team,

I would like to save the array subscript with in double quotes

eg sub1=111,sub2=444 (these values are dynamic)

set array(sub1,sub2)=""

It will be saved as array(111,444)=""

but I want to save it as array("111","444")=""

I am trying to save it from the class like """"_sub1_"""" but its not displaying as expected.

Kindly do the need full.

Thanks in Advance

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Hi,
For a REST application, when a user connects, I have to write a message in an application log.
The login is processed by the /login routine by default.

How can I add a process to the login process?
Is there a callback ?
Should I create a login method in my class that extends %CSP.REST ?
I'm not sure and can't find information in the documentation ?

I try this (not working) :

<Routes>

<Route Url="/lists" Method="GET" Call="GetLists" />

<Route Url="/me" Method="GET" Call="GetUserInformations" />

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Hi all,

I am trying to delete an item from a production through a routine that installs and disables items.

To add any item, I have no problems, even to enable and disable some particular items.

The problem arises when I try to eliminate the production item, because when it does, the production become unstable and only works again when this item is added again in the collection (or the item is deleted manually in the production.cls)

This is my code attempt:

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