Caché | InterSystems Developer Community

Article

Eduard Lebedyuk · Oct 18, 2016 7m read

In this article I would like to tell you about macros in InterSystems Caché. A macro is a symbolic name that is replaced with a set of instructions during compilation. A macro can “unfold” in various instruction sets each time it is called, depending on the parameters passed to it and activated scenarios. This can be both static code and the result of ObjectScript execution. Let's take a look at how you can use them in your application.

#Beginner #Best Practices #Caché #Compiler #Terminal #ObjectScript #Tips & Tricks

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Article

Fabian Haupt · Sep 2, 2016 2m read

Advanced URL mapping for REST

By now it's a commonplace how to implement a basic REST API in Caché and there is good documentation about it here: REST in Caché

A question that comes up from time to time is:

How can I make a parameter in my REST url optional?

Simply put, is it possible to create a URL map in Caché that maps a URL like this:

#Mapping #REST API #Caché

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Question

Svetlana Ilina · Nov 28, 2016

spatial data

Hello. I am a student from Syktyvakar Forest Institute(Russia).

I need to make Research : "Databases for working with spatial data
Consider MySQL, PostgreSQL and 1 to choose from". I want to explore Cache with subject library of spatial data.

Help.

Does Someone from the developers write the libraries of spatial data?

#Caché

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Article

Maks Atygaev · Dec 11, 2016 4m read

Declarative development in Caché

Caché offers a number of methods for going through a collection and doing something with its elements. The easiest method uses a while-loop and lets you fulfill the task in an imperative manner. The developer needs to take care of the iterator, jumping to the next element and checking if the loop is within the collection.

#Object Data Model #ObjectScript #Tips & Tricks #Caché

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Article

Tirthankar Bachhar · Sep 27, 2016 3m read

Registering New Error Code and Error Message

How do we generally create an error object of %Status?

Set status=$SYSTEM.Status.Error($$$GeneralError,"Something went wrong")

Now, like $$$GeneralError there are many more macro defined within %occErrors include file by Intersystem which we can use.

#Object Data Model #Caché

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Question

Alexander Koblov · Feb 5, 2016

How to convert JSON to %ListOfDataTypes?

Hi.

It is easy to receive JSON representation or dynamic Array from %ListOfDataTypes:

set l=##class(%ListOfDataTypes).%New()
do l.Insert("a")
do l.Insert("b")
do l.Insert("c")

set arrStr=l.$toJSON()
zwrite arrStr
set arr=l.$compose([])
zwrite arr

How to make backward conversion? How to receive %ListOfDataTypes from dynamic Array an JSON string?

I've tried

#Code Snippet #Interoperability #JSON #Caché

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Article

Jonathan Pham · Nov 1, 2016 1m read

Wireshark installer could affect Studio.exe and csystray.exe on Windows

A few customers have seen this happen, so I thought it would be worth mentioning here on the Developer Community. This could affect users running versions between 2014.1.3 and latest who install or upgrade Wireshark. There is a bug in the Visual C++ 2013 redistributable shipped with the current Wireshark 2.2.1.

This is from Microsoft’s bug report https://support.microsoft.com/en-us/kb/3138367 :

#Studio #Caché

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Question

Eduard Lebedyuk · Jun 3, 2016

How to detect a character encoding?

Let's say I open a stream/file.

If it's not in UTF8 i need to call $ZCVT, and if it's already in UTF8, then I don't need to call $ZCVT.

Is there any way to determine character encoding for input stream/file?

#Caché

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Question

Shanmuga rajan · Sep 23, 2016

Cache class definition

i got an unspecified character in my try-cache i do sample class definition using stream collection what is my defect plz reply me as soon as possible

#Caché

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Announcement

Stefan Wittmann · Aug 25, 2016

JSON changes in Caché 2016.2

As Bill has mentioned earlier in his post, we have carefully reviewed the JSON capabilities and made some adjustments to ensure they deliver the best benefit to you. In this post, I am going to describe the modifications in more detail and provide guidance for you to understand the implication for your code base.

#Compatibility #JSON #SQL #Caché

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Article

Brendan Bannon · Sep 1, 2016 9m read

The Art of Mapping Globals to Classes (2 of 3)

If you are looking to breathe new life into an old MUMPS application follow these steps to map your globals to classes and expose all that beautiful data to Objects and SQL.

This example is going to cram in 4 or 5 different things beyond what was covered in Part 1

#Globals #Mapping #SQL #Caché

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Announcement

John Murray · Jul 22, 2016

Serenji 2.6 is now available

We at George James Software are pleased to announce the release of version 2.6 of Serenji, our editor and debugger for Caché, Ensemble and HealthShare.

The main enhancement in 2.6 is the ability to run on a Linux <edit> or OS X </edit> workstation using Wine 1.8. More release details are here.

#Development Environment #Release #Caché #Ensemble #HealthShare

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Question

Jenna Poindexter · Feb 2, 2016

How do we upload a document from a CSP Page

I have a CSP page that needs to allow the user to submit a file. I have a form with an element in it <input type="file" name="file"/> which allows the user to select the file they want to upload from their local filesystem.

How do I go about actually getting the file to be sent to the server?

#Caché #Frontend

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Question

Eduard Lebedyuk · Sep 26, 2016

Automatic removal of system methods from codebase

As we've all heard 2016.2 draws near and brings the removal of system methods with it.

There are two ways to make the code compatible with 2016.2:

Replace system methods with new methods
Replace system methods with macros

#Caché #Compatibility #ObjectScript

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Question

Jose Sampaio · Jul 21, 2016

Source Control For Caché / Ensemble

Hi community members!

I'd like to know about what source control version is recommended to use with Caché / Ensemble. Can someone help me? If yes, there is some documentation to how to configure?

Thanks,

José Sampaio.

#Caché #Perforce #SVN #Studio #Ensemble

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Article

Brendan Bannon · Oct 27, 2016 2m read

New WRC Customer Interface

Come check out the new WRC interface we have made available to supported customer.

Some of the new features available to you are:

Organization Dashboard – gives an overview of your organizations activity for this year

#Caché

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Question

John Murray · Apr 6, 2016

What does the + suffix at the end of a Studio document name denote?

Here is a screenshot from my 2016.2 FT instance of Studio and Ensemble:

I don't recall having seen the highlighted "+" suffix on document names previously. Who can tell me what it denotes?

I originally posted this in the Field Tests group but it turned out to be a 2016.1 feature that I hadn't previously noticed. So I subsequently moved the post to the Cache group.

#Studio #Caché

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Article

Mike Kadow · Apr 9, 2016 1m read

Kindle Edition of Caché and MUMPS – Part II is released

Kindle Edition of Caché and MUMPS – Part II is released

All data is present and readable, albeit with some minor formatting issues.

Thank you for your patience in waiting for the kindle edition.

#Caché

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Article

Eduard Lebedyuk · Sep 13, 2016 7m read

User authentication using Arduino with RFID

In the previous article, I had just started working with Arduino, and got a meteorological station to show as a result. In this article, let's go further: we will set up authentication via RFID cards and Arduino against the InterSystems Caché application.

#Authentication #Security #Terminal #Access control #Caché

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Article

Timur Safin · Aug 19, 2016 10m read

Caché MapReduce - introduction to BigData and MapReduce concept

Several years ago everyone got mad about BigData – nobody knew when smallish data will become BIGDATA, but all knows that it’s trendy and the way to go.

#AI #C++ #Data Model #Distributed Data Management #Machine Learning #Caché

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Article

Timur Safin · Aug 26, 2016 8m read

Caché MapReduce - Basic interfaces for MapReduce implementation (part II)

In the prior part of this series we have provided introduction to Google MapReduce approach, but still not covered their possible ObjectScript implementation. Which we will start to explain today.

#C++ #Data Model #Globals #Key Value #Caché

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Article

Timur Safin · Sep 2, 2016 11m read

Caché MapReduce - putting it all together – WordCount example (part III)

In part I of this series we have introduced MapReduce as a generic concept, and in part II we started to approach Caché ObjectScript implementation via introducing abstract interfaces. Now we will try to provide more concrete examples of applications using MapReduce.

#Data Model #Distributed Data Management #Object Data Model #Caché

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Article

Benjamin De Boe · Jul 4, 2016 8m read

Introduction to the iKnow REST APIs

After a five-part series on sample iKnow applications (parts 1, 2, 3, 4, 5), let's turn to a new feature coming up in 2017.1: the iKnow REST APIs, allowing you to develop rich web and mobile applications. Where iKnow's core COS APIs already had 1:1 projections in SQL and SOAP, we're now making them available through a RESTful service as well, in which we're trying to offer more functionality and richer results with fewer buttons and less method calls. This article will take you through the API in detail, explaining the basic principles we used when defining them and exploring the most important ones to get started.

#Best Practices #Caché #iKnow

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Question

Jiri Svoboda · Nov 7, 2016

CLS location from INT code

Given location in INT code, as Cache usually reports on error (zWriteReport+25^SomeFile.1), is there any programmatic way to determine corresponding place in original source code?

Jiri

#Caché

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Question

prabakaran a · Dec 27, 2016

Upload and strore the file

Hi all,

How to store the upload file in CSP?

Thanks,

Prabakaran A.

#CSP #Caché

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Question

Chris Stewart · Jun 9, 2016

REST Services Cataloging

I've been building up a REST services API, consisting of a dozen or so classes referenced from a Dispatch class, which has route mappings for the first piece of the URI. I'd like to have the Dispatch class be able to output all of the available Services, with some documentation. Is there something like a %Library resource that I could use to pull this information from each of the classes?

Thanks

Chris

#Data Model #REST API #Mapping #Caché

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Article

Carter Tiernan · Dec 22, 2016 2m read

The Polymetric Dashboard

> Customizable System Monitoring. ## Introduction The Polymetric Dashboard is a stand-alone module that provides enhanced monitoring tools for a Caché environment. Equipped with over one hundred sensors that monitor key system metrics, a robust REST API, and a modular AngularJS user interface, the Polymetric Dashboard is fully functional out of the box. However, the Polymetric Dashboard is designed to be customizable; any system metric can be monitored by creating a new sensor, and the visualization of collected data can be tailored to specific requirements and purposes.

#Tools #Monitoring #Visualization #Caché

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Article

John Murray · Mar 11, 2016 1m read

Defining global, routine and package mappings that apply to (almost) all namespaces

In this posting I want to raise the profile of a feature that arrived in 2009.1 but is perhaps not very well known.

It is sometimes useful to make certain packages, globals or routines available to all of your namespaces. Of course you can add the necessary mappings whenever you create a new namespace, but here's a simpler way.

#Caché #Ensemble #HealthShare #Mapping

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Question

Stephen Wilson · Oct 18, 2016

How do you add a Total Phones column populated by SQL COUNT(*) expression in the Zen Quickstart Tutorial?

I have been following the online Zen Quickstart Tutorial using the lastest release documentation. In addition to playing around with the styling and making a few minor functionality tweaks, I wanted to add an additional column that shows a count of the number of phone numbers for that Contact (as shown in the image below).

#Data Model #Object Data Model #SQL #Tutorial #ZEN #Caché

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Article

John Murray · Mar 4, 2016 1m read

Getting my head around a class model

There's plenty of goodness in the %-packages InterSystems supplies, and it seems that every new version of Caché brings something new. The browser-based class documentation (a.k.a. Documatic) generally provides a good level of information, but on the basis that "a picture is worth a thousand words" I sometimes want a diagram.

For example, when trying to navigate the %Dictionary package for a project that needed to find out about class definitions, here's one of the UML class diagrams I created.

#Object Data Model #Tools #Caché

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