#InterSystems IRIS

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InterSystems IRIS is a Complete Data Platform
InterSystems IRIS gives you everything you need to capture, share, understand, and act upon your organization’s most valuable asset – your data.
As a complete platform, InterSystems IRIS eliminates the need to integrate multiple development technologies. Applications require less code, fewer system resources, and less maintenance.

Article Eduard Lebedyuk · Jan 16, 2020 2m read

This series of articles would cover Python Gateway for InterSystems Data Platforms. Execute Python code and more from InterSystems IRIS. This project brings you the power of Python right into your InterSystems IRIS environment:

  • Execute arbitrary Python code
  • Seamlessly transfer data from InterSystems IRIS into Python
  • Build intelligent Interoperability business processes with Python Interoperability Adapter
  • Save, examine, modify and restore Python context from InterSystems IRIS

Other articles

The plan for the series so far (subject to change).

Intro

The Jupyter Notebook is an open-source web application that allows you to create and share documents that contain live code, equations, visualizations and narrative text.

This extension allows you to browse and edit InterSystems IRIS BPL processes as jupyter notebooks.

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Question Eduard Lebedyuk · Jan 15, 2020

How do I rename class programmatically?

This discussion touches on data move which, is not a concern in my case (BPL renames).

I also don't care about external references.

The best I got is:

  1. Get class text as string
  2. Replace class name in this string
  3. Save new string as new class
  4. Open new class as object
  5. Delete storage
  6. Compile class

Are there any better alternatives?

Also found this discussion.

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Announcement Anastasia Dyubaylo · Jan 16, 2020

Hi Community,

2019 was a great year full of video content for InterSystems Developers. Already 200 Videos on our InterSystems Developers YouTube Channel, and the number of subscribers has doubled since the previous year!

Almost 57K Views and 5,1K hours of Watch Time in 2019! Thank you, our dear subscribers, so we understand that our video channel is valuable to you!

Now let's take a closer look at the most popular videos on InterSystems Data Platforms over the past year.

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Question Dmitry Maslennikov · Jan 16, 2020

When I tried to migrate one of ZEN applications to IRIS from 2018.1 I'm faced with the issue with Login Page, in this case used some ZEN page, completely customized. But when a user tries to get access, he gets the error like below.

The requested URL /csp/user/User.Login.cls was not found on this server.

I tried to test it with a fresh just created login page class

Class User.Login Extends %CSP.Page
{ 

ClassMethod OnPage() As %Status
{
  &html<<h1>Hello</1>>
  Quit $$$OK
} 

}

Set it to /csp/user application as Login page, and

$ curl http://localhost:32784/csp/user/menu.
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Question Eduard Lebedyuk · Jan 14, 2020

Is there a way to get dynamic object from iterator?

set arr=[1,2,3]
set iter=arr.%GetIterator()

I pass iterator several frames down and I'd rather avoid passing both the array and iterator, but for debugging I need to access original object in a situation where only iterator is available.

Is there a way to do it?

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Announcement Sergey Lukyanchikov · Jan 15, 2020

This repository is a go-public that builds on the already existing InterSystems-internal Convergent Analytics community and InterSystems-private MLToolkit repo (remains active and contains the most recent information for external ML Toolkit users - request memebership by writing us at MLToolkit@intersystems.com). This repo embraces more than ML Toolkit, we would like to host any discussions, publications, projects that add up in what we call convergent analytics approach. Welcome!

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Article Peter Steiwer · Jan 14, 2020 2m read

In the previous part of this series, we saw how to include data in a portlet from within DeepSee. This used the built in data controller. In this part, we are going to be pulling in data from outside of DeepSee. This will include both information from within InterSystems IRIS and from the OS.

Why use this?

This is useful if you would like to create a dashboard that only contains information about your system. It is also useful if you want to display data about your system along side data that you have stored in DeepSee.

What will we learn?

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Announcement Jamie Kantor · Jan 14, 2020
Hi, there, everyone. 
 
We here in the certification team have been getting some questions about Caché developers taking the InterSystems IRIS Core Solutions Developer exam. I thought now would be a good time to clear up some doubts the community may have.
 
Even if you haven’t been working yet in InterSystems IRIS, the exam may well suit you already if you currently have experience in Caché. By looking at the Exam Details, you’ll see that there is only one IRIS-specific topic.
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Article Eduard Lebedyuk · Jan 13, 2020 1m read

While and for are pretty similar, but sometimes you need to do a not recommended thing - change cycle boundaries.

In this situation while and for are different. For calculates boundaries once per run and while calculates boundaries on every iteration.

Consider this code sample:

set x = 5
for i=1:1:x {
     write "i: ", i,", x: ", x,!
     set x = x+1
}

You'll get this output:

i: 1, x: 5
i: 2, x: 6
i: 3, x: 7
i: 4, x: 8
i: 5, x: 9

Compare to while cycle:

set i = 1
set x = 5
while (i<=x) {
    write "i: ", i,", x: ", x,!
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Article Peter Steiwer · Jan 10, 2020 4m read

When using Related Cubes in InterSystems IRIS BI, cubes must be built in the proper order. The One side must be built before the Many side. This is because during build time for the Many side, it looks up the record on the One side and creates a link. If the referenced record is not found on the One side, a Missing Relationship build error is generated. The One side is going to be the independent side of the relationship, AKA the side of the relationship that is referenced by the Many side or the Dependent cube. For example: Patients contain a reference to their Doctor.

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Question Marta Soler · Aug 29, 2019

Hello!

I am taking the 'Creating an InterSystems Class Definition' course, and the Exercices asks to open a Terminal from the Management Portal to create and interact with a new object. I didn't found how to acces tot the Terminal from the Management Portal, and the documentation I have seen doesn't help me... sad

In some moment I saw a video wich explains how to acces to the terminal, but I can't find it. ¿Can someone explains me how to find the Terminal acces?

Thank you!

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Question Jorge de la Garza · Jan 9, 2020

I have an array of table names that I want to iterate over and for each table, get the number of rows.  I was hoping I could do something like:

set tStatement = ##class(%SQL.Statement).%New()set tSC = tStatement.%Prepare("SELECT COUNT(*) AS ObservedRowCount FROM ?")$$$ThrowOnError(tSC)set tTableName = ""for{  set tTableName = $O(tCounterAry(tTableName))  quit:tTableName=""set tResult = tStatement.%Execute(tTableName)
  // ...
}

But that doesn't work:

ERROR #5540: SQLCODE: -1 Message:  IDENTIFIER expected, ?
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Article Iryna Mykhailova · Jan 7, 2020 6m read

Some readers of my previous article, Caché eXTreme for .NET - direct access to globals from C#, wondered if you could access information not just from the same instance in which you’re working, but also from another instance on the same computer, or from an instance located on another computer in the same local network. Some theorized, correctly, that this would be possible using the Enterprise Cache Protocol (ECP). In this article I’m going to show how it can be done.

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Article Peter Steiwer · Jan 7, 2020 1m read

Have you ever needed a math function but could not find what you needed and ended up writing your own? Look no further! ObjectScript-Math is here to solve all your math related function needs.

ObjectScript-Math is an Open Source library for ObjectScript Math functions. It is now available on Open Exchange. This library contains a mix of new functions that are not currently available and functions that are available. The existing functions will be wrapped for use from ObjectScript-Math so that all Math functions can have a central location.

This library will continue to grow, so give it a try and give your feedback!

Don't see what you are looking for? Please feel free to submit requests for additional functions or contribute code yourself!

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Question Jeffrey Drumm · Jan 7, 2020

I'm currently working with a developer to add IRIS/Caché functionality to his HL7 analysis tool that would allow its users to extract messages directly from the Ensemble message store. IRIS for Health Community Edition has been a great aid in debugging this, but I keep banging into the 5 connection license limit with Studio, the Management Portal, an IRIS terminal session and a client database connection using either ODBC or ADO.NET.

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Question Jeffrey Drumm · Jan 4, 2020

I've writing a short classmethod that extracts an HL7 message from EnsLib.HL7.Message by ID and returns it as a stream. It's to be called as a stored procedure via ODBC (or ADO.NET) to fetch messages into an application.

I'm not using an SQL query in the classmethod itself, but it will be called as part of an SQL query via ODBC, but I can't figure out how to set a custom SQLCODE and error text from within the classmethod that propagates back to the external application. I thought %sqlcontext would be useful for this, but it doesn't appear to do anything. Here's the class:

Class User.HL7.
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Article Eduard Lebedyuk · Jan 6, 2020 1m read

This series of articles would cover Python Gateway for InterSystems Data Platforms. Execute Python code and more from InterSystems IRIS. This project brings you the power of Python right into your InterSystems IRIS environment:

  • Execute arbitrary Python code
  • Seamlessly transfer data from InterSystems IRIS into Python
  • Build intelligent Interoperability business processes with Python Interoperability Adapter
  • Save, examine, modify and restore Python context from InterSystems IRIS

Other articles

The plan for the series so far (subject to change).

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Article Peter Steiwer · Jan 6, 2020 4m read

What is %SQLRESTRICT

%SQLRESTRICT is a special %FILTER clause for use in MDX queries in InterSystems IRIS Business Intelligence. Since this function begins with %, it means this is a special MDX extension created by InterSystems. It allows users to insert an SQL statement that will be used to restrict the returned records in the MDX Result Set. This SQL statement must return a set of Source Record IDs to limit the results by. Please see the documentation for more information.

Why is this useful?

This is useful because there are often times users want to restrict the results in their MDX Result Set based on information that is not in their cubes. It may be the case that this information may not make sense to be in the cube. Other times this can be useful when there is a large set of values you want to restrict. As mentioned before, this is not a standard MDX function, it was created by InterSystems to handle cases were queries were not performing well or cases that were not easily solved by existing functions.

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Article Patrick Jamieson · Apr 22, 2019 8m read

Launching IRIS Using Docker

This brief document will walk through the steps to launch IRIS community edition using Docker on the MAC. For those new to Docker, the first two pages explain how to install Docker, and run some basic commands that will be needed to get the IRIS community edition running. Experienced Docker users can skip directly to page three.

  1. Get Docker Desktop for MAC. This can be downloaded at Docker Hub, but one should look at the requirements before downloading it to ensure it works smoothly. The directions and download link are at: https://docs.docker.
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Announcement Olga Zavrazhnova · Jan 1, 2020

Hey Developers!

Advent of Code 2019 is over! Thanks for participating in our COS marathon!

And now we're pleased to introduce the winners and distribute all the prizes! 

Big applause goes to these winners: 

     Kevin An (w/ repo)

     Fabian Haupt (w/ repo )

     Peter Steiwer (w/ repo )

And here's the final Leaderboard:

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Question Vivek Nayak · Dec 31, 2019

Hi Team,

I want to save image/file using inter system iris web api.

I am sending file as Base64 formate  in JSON object to api .and I want to save it at D/Images folder.

please refer below code that i was tried.

Obj.OrganizationLogoBase64--> has base64 value of image

Set decode = $System.Encryption.Base64Decode(Obj.OrganizationLogoBase64)

set file = ##class(%Stream.GlobalBinary).%New()

    do file.Write(decode)

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Article Peter Steiwer · Dec 31, 2019 3m read


In the previous part of this series, we saw how to reference a web page that will enhance our dashboard experience.  Now we will look into referencing data that is already in our cubes.

In this example, we will be referencing the controller object and we will be extracting data from it. This data will then be displayed as text in our Dashboard. In Part 5, we will show how to incorporate this data into other charting libraries.

Why use this?

The controller object contains data from an MDX result set.

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