It’s often useful to make changes inside the current transaction, that would not be rolled-back if transaction is rolled-back. For example to do some logging.

This can be achieved by using global that is mapped to temporary database -- IRISTEMP. All globals that start with ^IRIS.Temp* are mapped to IRISTEMP by default. Problem with such approach is that IRISTEMP is cleaned on InterSystems IRIS restart, so this log is lost.

What else you can do is -- suspend transaction temporarily, do the logging, and then resume the same transaction.

The 2019.2 version of InterSystems IRIS Studio is now Generally Available!

InterSystems IRIS Studio 2019.2 is the first release of our cross-product Studio development tool.  It can connect to InterSystems IRIS servers and also to Caché/Ensemble servers, and behaves appropriately for each.  This helps developers that want to work across both sets of products as well as those that want do develop against containerized IRIS using Studio.

How can I remove elements from $lb property? Specifically last element?
$list does not work with $lb properties.
$listupdate can't remove elements
The only solution I found is a temp variable and $list, but isn't there something better?

This series of articles would cover Python Gateway for InterSystems Data Platforms. Leverage modern AI/ML tools and 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

Index

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

Hi Everyone!

New session recording from Global Summit 2018 is available on InterSystems Developers YouTube Channel:

InterSystems IRIS Reference Architectures

InterSystems has corrected a memory leak in applications that pass by reference to a formal parameter that accepts a variable number of arguments.

This problem exists for:

• InterSystems IRIS Data Platform – all currently released versions
• InterSystems IRIS for Health – all currently released versions
• HealthShare Health Connect 2019.1.0

If this defect occurs, the process partition will eventually be exhausted, resulting in a <STORE> error.

Hi! I am working in a java project (Spring Boot+ Maven + Hibernate) using jpa/hibernate to manage the persistance with the IRIS database from the Docker image (store/intersystems/iris:2019.2.0.107.0-community) and I've found an issue using the IRIS instance, when I define tables with relationships OneToMany, ManyToOne or ManyToMany and I try to fetch all the rows of the tables using the default method findAll (JpaRepository implements that method to get all the rows by default) the query automatically exceeds the limit of licenses availables.

Hi Community!

Please welcome a new video on InterSystems Developers YouTube Channel:

InterSystems IRIS - Power of the Platform

1.About this article

Just like Caché pattern matching, Regular Expressions can be used in Caché to identify patterns in text data – only with a much higher expressive power. This article provides a brief introduction into Regular Expressions and what you can do with it in Caché. The information provided herein is based on various sources, most notably the book “Mastering Regular Expressions” by Jeffrey Friedl and of course the Caché online documentation. The article is not intended to discuss all the possibilities and details of regular expressions. Please refer to the information sources listed in chapter 5 if you would like to learn more. If you prefer to read off-line you can also download the PDF version of this article.

Hi,

I try to implement an iFind index.

Here is my definition class :

Have enabled LDAP for our numerous , Ensemble, IRIS and cache instances with many namespaces. All is working fine and the ldap logins work.

But have noticed that the first instance that the user logs into the namespace is assigned to that user, but when that user than logs into another instance the default namespace from the first login is still there and doesn't update to the new namespace.

So this doesn't effect the ldap login but is now effecting the terminal logins where the user is now getting access denied.

Not sure why the first namespace is not being replaced by the current namespace.

Now that the InterSystems IRIS Data Platform Community Edition is available on Docker Hub (https://hub.docker.com/_/intersystems-iris-data-platform), it seems like a great time to try InterSystems IRIS in a container. For some time already, the community edition has been available in the cloud, for example on AWS (https://community.intersystems.com/post/free-iris-community-edition-aws), but maybe it would be nice to try it locally as well. Fellow Windows users are no doubt used to eye rolling, being told “YMMV”, etc., whenever they mention using Docker for Windows.

The 2019.2 version of InterSystems IRIS Data Platform is now Generally Available!

Container images for InterSystems IRIS are available via the WRC's download site.

The build number for these releases is 2019.2.0.107.0.

InterSystems IRIS Data Platform 2019.2  is the first CD (continuous delivery) release of InterSystems IRIS.  It has many new capabilities including:

• Addition of the IRIS Native API for Python and Node.js and relational access for Node.

I'm a beginner with Health connect.  Trying to create a bi-directional interface.  is there a specific class I should use on the business  operations/services? 

Hi Everyone!

One more session recording from Global Summit 2018 is available on InterSystems Developers YouTube Channel:

InterSystems IRIS in a Container

Hi Community!

I have very good news for the developers, who are using GitHub to host projects with InterSystems ObjectScript.  GitHub introduced the support of InterSystems ObjectScript this week!

How does it work?

Now all the .cls files in your repository are considered as InterSystems ObjectScript and highlighted according to the language rules of ObjectScript. For example WebTerminal, Samples-Data.

During testing your code you are often confronted with the need to examine
the actual content of an object. Either using ZWRITE or $system.OBJ.Dump()
you get a picture of simple properties as "--- attribute values ---"
while "--- swizzled references ---" are more confusing than informative
and with "--- calculated references ---" you are just left in the lurch.

This small helper class allows you to dump an object to terminal or
e.g in background to some stream for later review.
By default, you see just properties with content,

   DO ##class(Z.obj).

Hi Community!

Please welcome a new video on InterSystems Developers YouTube Channel:

Adopting InterSystems IRIS

InterSystems has corrected a defect that can result in application data integrity issues following an abnormal shutdown.

This problem exists for:

• Caché and Ensemble 2018.1.2
• HealthShare Health Connect (HSAP) 15.032 on Core version 2018.1.2
• InterSystems IRIS Data Platform 2019.1
• InterSystems IRIS for Health 2019.1
• HealthShare Health Connect 2019.1

The defect breaks the journal sync guarantee that all updates in the journal buffer have been written to the journal file. The failure is silent: it does not generate an error message and there is no entry about it in any log file.

Has anyone done any integration with Kafka, especially prior to IRIS? If yes what was your experience such as specific pain points to be overcome.

David

Greetings,

Is there any default exception handling feature available in Zen report? I am working on a report that comprises of several different composites report (%ZEN.Report.Display.composite). I am incorporating several composites into the main Zen report, If any composite fails or encounters an issue such as issue with the sql statement or class method which i am using to fetch the data, the report (pdf) fails and shows a Zen error. It is very hard to find an exact composite or code that causes the error as Zen report displaying a generic Zen Error without any details.

Hi All,

I have a REST dispatcher class in which I enabled the  Parameter HandleCorsRequest = 1;

I can able to access the API using Postman, but not with my web application. It throws the below error.

Access to XMLHttpRequest at 'https://ec2-10-200-XXX-X.com/REST/MRM/get/Message?MessageCode=ERR0006&L…' from origin 'https://ec2-80-106-XX-XXX..com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Hi,

While we're working on a new data product supporting the analytics development process, we'd like to test some of the UX (User eXperience) design elements on a real audience. If you've got some battle scars from earlier analytics work and are interested in participating, please complete this survey and we'll get in touch when we have something to show!

Feel free to share this survey with your data-savvy friends and colleagues if you think they match the profile.

Thanks in advance for your participation!

Hi Community!

Please welcome a new video on InterSystems YouTube Channel:

InterSystems and Python QuickStart

Hi Guys, 

I have a DB server (ser-app-db) where IRIS is installed as server.

I have a Web server (ser-app-w) where IRIS is installed as web server and configured as CSP gateway.

I followed the configuration guide and ser-app-w perfectly display the CSP and CLS pages.

But that's not working for my REST service, for exemple with the REST sample:

http://ser-app-db/REST/CRM/Get?ReqID=123(GET): work and show the request

http://ser-app-w/REST/CRM/Get?ReqID=123(GET): return a 404.

I am using Apache server in Linux box.

I am not sure what I am missing in the config.

httpd.

PHP, from the beginning of its time, is renowned (and criticized) for supporting integration with a lot of libraries, as well as with almost all the DB existing on the market. However, for some mysterious reasons, it did not support hierarchical databases on the globals.

Globals are structures for storing hierarchical information. They are somewhat similar to key-value database with the only difference being that the key can be multi-level:

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:

set productionName = "MyApp.production"

set itemDelete="MyApp.BP.item"

if ##class(Ens.Config.Item).

In the previous parts (1, 2) we talked about globals as trees. In this article, we will look at them as sparse arrays.

A sparse array - is a type of array where most values assume an identical value.

In practice, you will often see sparse arrays so huge that there is no point in occupying memory with identical elements. Therefore, it makes sense to organize sparse arrays in such a way that memory is not wasted on storing duplicate values.

In some programming languages, sparse arrays are part of the language - for example, in J, MATLAB. In other languages, there are special libraries that let you use them. For C++, those would be Eigen and the like.

Globals are good candidates for implementing sparse arrays for the following reasons:

Hi Community!

Please welcome a new video on InterSystems Developers YouTube Channel:

InterSystems IRIS from Spark to Finish

Hi All,

I have two tables LB_TestSet and LB_Transfer

LB_Transfer has a list if TestSet row IDs, so i am doing the following join

SELECT 
LBTS_RowID,
,LBTS_CollectedDate
FROM SQLUser.LB_TestSet 
JOIN SQLUser.LB_Transfer ON ($LISTBUILD(LBTS_RowID) %INLIST LBTR_TestSetList)
WHERE LBTS_CollectedDate BETWEEN '2019-01-01' AND  '2019-05-10'

Without the date filter the query returns data, but if i add the date filter no data is returned

I also tried using %INTERNAL, %EXTERNAL TO_DATE('2009-01-01','YYYY-MM-DD')

if i filter by RowID for example the filters work.