#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

Question John Murray · Mar 5, 2016

If you've got more than one developer on a project, do you each work in your own namespace? Or do you all use a common namespace?

Through my work at George James Software I have encountered many different Caché and Ensemble development setups. At risk of over-generalizing, the older and more established users of InterSystems technologies seem more likely to have all their developers working in a common namespace, whereas the newer 'converts' tend to favour giving each developer their own namespace.

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Article Francis Galiegue · Feb 15, 2016 1m read

Hello,

This package may be of interest...

Link: https://github.com/litesolutions/cachedb-import

I have programmed this over a hunch, in order to facilitate the retrieval of source code from a Caché installation. It makes use of the Java API provided by Caché.

Right now, I use it as a means to salvage sources in order to analyze them using the SonarQube plugin I develop for my employer. Unfortunately this plugin is not open source.

I am calling for help here, on two fronts:

  • improve the code,
  • obtain source samples to analyze!
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Article Tom Fitzgibbon · Mar 4, 2016 2m read

RESTful API Call From Cache to Particle.io Electron

Tom Fitzgibbon | Multidata | 212-967-6700 x537 | tom@mul.com

Summary: Simple Blink Tutorial for Particle.io Electron Device from Cache

Electron device is a tiny ARM processor ($40-$60) that connects to Particle’s world wide leased 2G/3G network (about $3/mo) and runs off an included LiPo battery. Using Cache’s %Net.HttpRequest you can send/receive data, control hardware and read sensors.

Step by Step (about 1 hour)

1) Get the Electron from store.particle.io.

2) Set up the Electron from setup.particle.io.

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Article Steve Glassman · Mar 4, 2016 1m read

I am pleased to announce the next 2016.2 field test kit, 2016.2.0.605.0.

There are about a hundred changes from the previous field test kit, including the following fixes to problems found by those using the kits in the field:

  • DLP3516, which fixes a problem in the Demo.Document.Data.Loader class
  • RJW2416, which fixes a problem with the telnet client disconnecting on Windows
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Article Bill McCormick · Mar 3, 2016 1m read

The cdirectmgr utility will no longer be included with product distributions beginning with the Caché 2016.2 release . This was an older VB application (predating the Caché cube) which allowed users to define server connections for Visual M/Caché Direct applications. As VB 6 is no longer supported by Microsoft, we will no longer ship this component. The same functionality is already available from the cube utility.

It is also posted in Compatibility blog.

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Announcement Bill McCormick · Mar 3, 2016

Zen Reports has offered multiple choices for direct printing including use of Adobe Reader or Foxit reader. Recent changes in Windows 10 and in the readers themselves have made it no longer possible to invoke these readers from background processes in Windows 10 and all future versions. Because of this Zen Reports will no longer support printing with these tools on Windows 10.

Windows 10 support was added for 2015.1 and 2015.2.  On Windows 10, the only option for direct printing with Zen Reports will be Qoppa JPDFPrint.

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Question Tiago Ribeiro · Feb 25, 2016

Good morning people.
The use of TDD is currently being reference for software delivery more confiabilitade and quality.

At the company I work developing web applications , we create tests for method class in a deteminado package and running the steps that the documentation recommends:

1 export the tests classes to a predefined folder.
2- And running the test ( D ## class (% UnitTest.Manager ) .RunTest (,"/nodelete" )

It is a lot of work to do the export and run these tests would have a resource that we could only run the tests without the need for export ?

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Question Benjamin Eriksson · Feb 26, 2016

Hello! 

I'm trying to use iKnow but I get the following error "No iKnow-enabled namespaces found" in the Management Portal.

It was working on the 2015.2.2 version but now on 2016.2.0 it doesn't. I very new to Caché and iKnow so it's probably a simple problem. 

I was able to create a iKnow domain using the terminal and I can view it in the learning portal (http://localhost:57772/csp/sys/exp/_iKnow.UI.IndexingResults.zen).

What can I do to make it work in Atelier? I've tried authenticating with SYS:SYS and USER:USER but neither seem to have any namespaces.  

Very thankful for any help! 

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Article Bill McCormick · Feb 19, 2016 4m read

I have been meaning to make a post about this topic for a few weeks and the other day an issue came in through the WRC about it so it seems this is a conversation we should be having. I want to begin by taking a few moments to explain "Why Atelier" then we can talk about what this means in the general sense for Studio and Atelier and Caché developers. We have wrestled with what to do with Studio for years. When I moved to Product Management in 2008 this was already a "thing". At the time we could not reach a consensus. Some felt Studio was fine as is. Others wanted to investigate a path

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Question Timothy Leavitt · Mar 2, 2016

Is the default language (i.e., $$$DefaultLanguage, which is used as the basis for localization with $$$Text/etc. at compile time) always "en" for new Caché installations, or could it be different? How is this determined? I don't see an option to select a language during Caché installation.

Also, is there a supported/preferred API for setting the default language? Looking at %occMessages.inc, one option would be:

Set $$$DefaultLanguageNode = "en"

But I'd expect there to be a classmethod for this somewhere (and haven't managed to find it yet).

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Question Scott Beeson · Feb 4, 2016

I'm working on a proposal for a deployment tool development project and I was wondering if anyone had any experience with such a thing.  

We use Healthshare and implementations for new clients are tedius and lengthy.  Lots of ensemble service, registry value, lookup tables, namespaces and other things have to be created and configured. 

I would like to create a Zen or CSP page based deployment tool that can do all this with a few parameters and some custom code.

Has anyone done this?  What are some pitfalls you ran into?  Any unique ideas you included?  Other general thoughts?

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Article Steve Brunner · Feb 29, 2016 1m read

InterSystems is pleased to announce that Caché and Ensemble 2015.1.4 are now available as maintenance releases.
For a complete list of the corrections in 2015.1.4, please review the release notes.

Caché and Ensemble 2015.1.4 are available today for the same platforms as 2015.1.3.
The complete set of supported platforms, including specific point releases and/or patches, is detailed in the Supported Platforms document.

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Question Luca Ravazzolo · Feb 13, 2016

Hi all,

I was wondering, what is your favourite public cloud provider?

What is your level of engagement with the cloud provider? Are you testing their infrastructure? In which case I'd expect you being progressing a parallel test with at least a second provider ;-) Or, are you already running a production environment?

--

OK, so, let me be the first one to share my experience with one specific cloud provider.

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Question Jenna Makin · Feb 24, 2016

Hi-

I'm curious to know what InterSystems clients are using for csp based web development methodology.

Are you doing tag based development, or class based development?

If you are using tag based development, what tools are you using to create the look and feel of your web pages?  Are you using tools like Adobe Dreamweaver, or do your developers sit down and code HTML using plain editors like Notepad and Notepad++

Are you doing prototyping of web pages and then adding CSP tags, or are you just developing the finished csp page with no prototype?

Thanks
Ken

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Question Scott Beeson · Feb 12, 2016

In MSSQL I think you can do something like this:

select *
from HS_IHE_ATNA_Repository.COLUMNS
where TABLE_NAME='Aggregation'

 

How can I do this in Cache SQL?

[%msg: < Table 'HS_IHE_ATNA_REPOSITORY.COLUMNS' not found>]

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Article Sylvain Guilbaud · Feb 24, 2016 1m read

C:\data\backup.bat :

C:\InterSystems\Ensemble\bin\cache -s"C:\InterSystems\Ensemble\Mgr" -U%%SYS ##Class(Backup.General).ExternalFreeze() <C:\data\login.scr 

echo %ERRORLEVEL%

rem note that we need to check errorlevel from highest to lowest here....

if errorlevel 5 goto OK

if errorlevel 3 goto FAIL

echo errorlevel returned wrong value

goto END

:OK

echo SYSTEM IS FROZEN

xcopy c:\InterSystems\Ensemble\mgr\ z:\backup\Ensemble /s /e /y /i

echo %ERRORLEVEL%

goto END

:FAIL

echo SYSTEM FREEZE FAILED

:END

rem Now unfreeze the system

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Article Dmitry Maslennikov · Feb 23, 2016 14m read

Developing an idea with RuleEngine in XData, we could even refuse from editing full class and edit only valuable xml. Sometime ago I have already written an article(in russian) about such possibility, even more, in that article I wrote about compilable JavaScript to Caché. 

Opening File

This possible with %Studio.AbstractDocument. While extending this class, developer should add a Projection.

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Article Dmitry Maslennikov · Feb 21, 2016 6m read

Some days ago Alberto has written a very interesting article about the usefulness of ObjectGenerators available in Caché.

In this article, Alberto shows an example RuleEngine based on XData, and how it is possible to improve the process of filling such rules. Caché Studio has a Studio Asist for XData; you may have already seen examples of it if you use ZEN or %Installer.Manifest.

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Article Steve Glassman · Feb 19, 2016 1m read

I am pleased to announce the next 2016.2 field test kit, 2016.2.0.595.0.

It may look like a slow week, with less than fifty changes having been checked in, but this kit includes the following fixes to problems found by you, the ones running the kits in the field:

  • ALE2845, which fixes the cachejdbc.jar version
  • JN1637, which fixes an issue that blocked debugging Atelier when used in conjunction with Kerberos
  • DLP3508, which fixes a JSON issue with $compose()

The rest of the fixes have been spread among different areas of the product, chief among them DOCUMENT Data Model, SQL and Atelier.

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Article Alberto Fuentes · Feb 19, 2016 3m read

The attached file contains an example of code generation using ObjectGenerators which builds a very simple homemade RuleEngine. 

Code generation is an excellent way of increasing performance moving run-time calculations to compile-time.

We could generate code creating routines or implemeting methods using ObjectGenerators. In this example we are using ObjectGenerators.

Update: Rule Engine is now on GitHub https://github.com/intersystems-ib/cache-iat-ruleengine

A very simple code generated method

For starters, let's begin with a very basic code generated method:

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Question Joel Solon · Feb 18, 2016

This morning on the old Caché Google Group, someone posed the following question, which I've decided to answer here, because it's interesting!

Is there a way to iterate ClassMethod's params, and get param's names and values?

The first answer I can come up with is: it's not easy! In any method, you could try to write code like this (where methodName is the name of your method):

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Question Tiago Ribeiro · Feb 18, 2016

The cache has error messages default, for example , " -139 SQLCODE : Competition impairment on the update: row versions are not the same. "

How i can exchange it for a more friendly to the user's message? I use the CSP.Page and form_save ( ).

What is best practice for this situation?

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Announcement Andreas Schneider · Feb 17, 2016

Caché Monitor is a database\sql tool primarily for InterSystems Caché but can also connect to MS SQL Server, MS Access and more databases. Within Caché Monitors Server Navigator you see all available Namespaces on your Caché Servers. No need to know the name of the Namespace, no need to configure many many JDBC Connections by hand. Just click on the namespace and see all objects like tables, views, classes and more...

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Question Rich Taylor · Feb 8, 2016

In preparation for a presentation I need a  real-world LDAP schema that has been customized a bit beyond the basics.   Perferably this would be based on an OpenLDAP system which would make it easier to merge into this presentation. 

If you have such a schema you would be willing to share please respond or contact my directly at Rich.Taylor@InterSystems.com

Thanks in advance.

Rich Taylor

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Question Scott Beeson · Feb 16, 2016

Here is my original query:

SELECT EventType, InitiatedAt, COUNT(*) as cnt
FROM HS_IHE_ATNA_Repository.Aggregation
WHERE EventType = 'LOGIN'
AND LocalDateTime > '2016-02-16 11:00:00'
GROUP BY EventType, InitiatedAt

This gives me data like this:

LOGIN %SYSTEM 69918
LOGIN OTHER 39


However, I need to get the data back as two columns with all but the last concatenated and delimited, more like this:

LOGIN;%SYSTEM 69918
LOGIN;OTHER 39

I tried this:

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