I am testing application code and want to simulate error conditions.
I am trying to use the following to define a custom error with a class method.
$SYSTEM.Status.Error($$$GeneralError,"Any text here")
My class method code looks like this....
Caché
Description
InterSystems Caché is a multi-model DBMS and application server
Last answer 23 June 2016 Last comment 23 June 2016
InterSystems is pleased to announce that Caché and Ensemble 2016.1.1 are now available on all supported platforms.
This followup announcement adds all the OpenVMS versions that were excluded in the announcement last week.
In this article I'll describe how to set up web services and/or REST services using EWD 3.
Since EWD 3 is designed to be modular, you can construct the environment that exactly meets your needs, but for much of the time you'll probably find that the pre-built EWD 3 ewd-xpress super-module does most of what you need because it hooks together all the core EWD 3 and other building-blocks you'll need:
Last comment 23 June 2016
As Rob explained in an earlier post, Caché's Node.js interface allows you to create Web Services and REST Services using the very modular EWD 3 framework.
Recently I have been posting some updates to our JSON capabilities and I am very glad that so many of you provided feedback. Today I would like to focus on another facet: Producing JSON with a SQL query.
Last comment 22 June 2016
Hi, Community!
Want to share with you one debugging approach from the Russian forum.
Suppose I want to debug the application and I want it to stop the execution on a particular line.
I add in code this line:
l +d,-d
When I want to start debugging in this line I block d in terminal
USER> l +d
And execute the app.
The app stops on this line and lets me connect to it with Studio debugger.
Last comment 22 June 2016
Hi -
I'm trying to rewind a cursor back to the first row after looping part of the way through the implied result set, but I'm not finding a way to make this happen, is there some such iterator variable or directive that I can leverage to accomplish this?
I could code around it by pulling identifiers and/or values into a local array, and then hand code up an iterator over my local results copy, but this feels like a "redesigning of a wheel" approach, and I thought I would check before I start down this path.
Thanks
Last answer 21 June 2016 Last comment 22 June 2016
Git, JavaScript, Job Opportunity, Job Wanted, JSON, Object Data Model, Relational Tables, REST API, Web Development, Caché
Job Description
Caché Objects Web Developer
An excellent opportunity exists for an enthusiastic Caché Objects full stack web developer to join our rapidly growing company based near Old Street.
If I wanted to build a web-based dashboard that monitored various HIE transactions where would I start?
Examples of measures would be Provide & Registers by Facility, Patient Views by facility or even PHR related data.
I have a successful POC that uses nodejs, html and SQL but I think it makes more sense to use Intersystems technology all the way around, I just don't know where to begin.
Last answer 21 June 2016 Last comment 21 June 2016
I can see mention of it online - http://www.intersystems.com/our-products/cache/tech-guide/chapter-3/ - but nothing in the docs on how to implement. Does anyone have any experience with this? We've managed to implement Hibernate and JDBC connections to Cache DBs fine (these are documented!).
Thanks very much :)
Last answer 21 June 2016 Last comment 21 June 2016
Customer is using an ancient MSM based client Workstation for their application and they made a small change to their server code. They introduced property of %Double() and discovered an issue. The MSM workstation is not able to retrieve any property of an object instance that holds value of $double(0). see images illustrating the issue.
I'm posting this to DC intentionally before I eventually send it to WRC so others can comment.
Dan
Image 1 - data
image 2 - UI
Last comment 21 June 2016
Best Practices, Caché, Oracle Enterprise Linux, SUSE Linux, System Administration, InterSystems Data Platform Blog
During recent large scale benchmarking activities, we were seeing excessive %sys CPU time that negatively impacted scaling of the application.
Problem
Last comment 21 June 2016
Hi,
I have a bit of code that does a find and replace on a "template" and inserts additional content. For example it replaces the @DATA@ with an html table:
<html>
<body>
<div id="data">@DATA@</div>
</body>
</html>
Currently doing this with the $replace function:
Set text=$replace(text, "@DATA@", data)
Last answer 16 June 2016 Last comment 18 June 2016
Let assume you have a infinitely scaling algorithm implemented in your application, using replication, ECP, or any other means of horizontal scaling, and let assume you know how to run your system under any volume of requests, the trick is to deploy required number of computing nodes in the cluster. If we are talking about cluster of 2-4 nodes your administrator (or as they call it today "devops engineer") will install anything manually. Probably he will easily handle 5 nodes configuration in the cluster.
Last answer 18 June 2016 Last comment 17 June 2016
InterSystems is pleased to announce that Caché and Ensemble 2016.1.1 are now available as maintenance releases.
For a complete list of the corrections in 2016.1.1, please review the release notes.
Hello WRC.
Is possible to obtain a node-cache modul for the nodeJS ver.4.4.4. and actual Caché 2015... ?
And what is the expected outlook of this.
A note about this new portal: If I put into "search box" some text with dot like .js or .css ( for example: test.js ) , I obtaint error page. Try it.
Of course, this "Developer Community" is nice, the right way.
Nice day for all, Jan Krestyn
Last answer 17 June 2016
Hello,
I have a question about how to set the value of a radioSet. Yes, I know -- the documentation says that setValue can be used "client side", but gives no example. Plus, I'm trying to set the value of a radioSet in %onAfterCreatePage, which is a Zen method? Server side method? I'm not sure.
In my Zen page I create a radioSet like this:
Last answer 16 June 2016 Last comment 17 June 2016
Setting the TZ Environment Variable on Linux
The Update Checklist for v2015.1 recommends setting the TZ environment variable on Linux platforms and points to the manpage for tzset. This is recommended to improve the performance of Cache’s time-related functions. You can find out more about this here:
https://community.intersystems.com/post/linux-tz-environment-variable-not-being-set-and-impact-caché
Hello,
I am still a beginner with COS and am struggling with these concepts. While digging through the official documentation will eventually tell you everything you need to know, getting started is nevertheless not an easy feat...
Is it possible to create a "lists/array/multidimensional 101" page for beginners? And, for instance, its interaction with $data, what it means to use "as list of something" or "as array of something", how to walk lists, how to add/remove elements, how to extract sublists etc?
Last answer 28 April 2016 Last comment 16 June 2016
I was planning to fully map out all the transforms that incoming CCDs go through before they are displayed in the Clinical Viewer or sent back to another facility. When I opened the XSL files, I see some very good comments like the following:
Last answer 16 June 2016 Last comment 31 May 2016
I am hoping some of you network guys have ideas. InterSystems seems to be at a standstill. When I startup Studio and try to start Terminal I get License Limit Exceeded. Starting with Terminal and going to Studio, same thing. It started when I put down a 2016 version of Cache on top of a 2015. InterSystems told me to uninstall everything and start fresh. I did that but have the same problems. What can I look at? How do I start to debug this? Although I am the only one on my PC it is really impacting my performance.
-thank you
Last answer 15 June 2016 Last comment 3 May 2016
Updated DEV server from account 2013.x to 2015.2 (Build 664_3U) of Ensemble
| Version: | Cache for UNIX (Red Hat Enterprise Linux for x86-64) 2015.2 (Build 664_3U)
|
Platform : UNIX (Red Hat Enterprise Linux for x86-64)
Last answer 15 June 2016
Hi All,
I've created a sample implementation of the MQTT protocol, which is now available on GitHub.
The project demonstrates MQTT client capabilities and it's written in Caché Object Script.
Any comments, bug reports are welcome! Some more enhancements (like SSL / TLS support) are planned for the near future.
Introduction
The field test of Caché 2016.2 has been available for quite some time and I would like to focus on one of the substantial features that is new in this version: the document data model. This model is a natural addition to the multiple ways we support for handling data including Objects, Tables and Multidimensional arrays. It makes the platform more flexible and suitable for even more use cases.
Last comment 15 June 2016
Hello!
Are there any short ways of serializing COS entity to the string? I am searching for something like .$toJSON() , but I need Caché 2013.* support.
The one way I supposed to work is to use $listbuild:
set str = $LISTTOSTRING($LB(1,2,3,",",5))
set list = $LISTFROMSTRING(str,",")
zw list
list=$lb("1","2","3","","","5")
Last answer 13 June 2016 Last comment 14 June 2016
Hi!
Here is small "How to" again.
Suppose you need to share something with source code. How can we manage it on DC?
Sharing code snippets
1. Add normal post (not Code Package).
2. Paste your code in the post and format it with highlighting as it is described here.
Last comment 11 June 2016