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I need to dynamically create a class based on a parameter passed into a class method. Basically the method takes in a string that contains the name of the class I need to create a new instance of.

I need something along these lines. 

ClassMethod someMethod(className As %String)
{
	set classObject = ##class(className).%New()

...
}

Trying to do this right results in a class not found error because it seems to be treating the variable as a literal string.

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Hi Community!

Here is the digest of what has happened on the InterSystems Open Exchange in October 2018.

Application Releases

We had 12 releases in October:

Design Pattern in Caché Object Script v.1.0

Ideal ObjectScript v.2018.1

Caché Simple Rule Engine Example v.2017.1

Adding tools in Studio Caché Intersystems v.1.2

Execute Server Commands from Caché / Ensemble / IRIS v.1.1

IRIS API EXPLORER v.1.0.0

String Datatype - Regular Expression v.1.0

Debug Stack v.1.0

Ethereum Interoperability Adapter v.2018.2.2

Yape v.1.0.0

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Hi, I want to create a service which on start will simply go through a list of values in a global and compare dates. If criteria is met, it will send an email.

But what kind of Adapter do I use? I see SQL, FILE, HTTP etc..etc.. But I dont want to use them

Please can you advice on how I should go about this?

Should I create a BS. Class and do onAdapterTASK() and simply build a method? Even then it is asking the kind of adapter I want

Would appreciate some guidance on this

Regards,

Eric

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Has anyone worked out a way to use LDAP to define the default namespace on multiple servers? I know that documentation says that intersystems-Namespace-xxx only supports one namespace, but how is this useful? Any workaround to say have intersystems-Namespace-server1-namespaceA and intersystems-Namespace-server2-namespaceB? Is it best practice to use the same "namespace" on every server?

Thanks!

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Here I’ll walk you through the process of creating a simple Node/Express API and connect it to a InterSystems IRIS instance.

I won't go into much detail about how to work with any of the technologies I will mention in this tutorial but I will leave links, in case you want to learn more.

The objective here is to give you a practical guide on how to set up and connect a node.js back-end API to IRIS.

Before we get our hands dirty, make sure you have Node.js running on your machine. So I'll check:

Open Exchange app
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Hello guys,

I want to be able to export a range of messages from my production (from within a specific date interval), but while digging into intersystems documentation, it isn't giving me any details on how to perform this task.

It teases me saying "Ensemble provides a Message Viewer page for HL7. You can use this page to display, transform, and export HL7 messages (either external files or messages from the Ensemble message archives).", but then there are no signs of further information.

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Hi Developers!

New video from Global Summit 2018 is available now on InterSystems Developers YouTube Channel:

Unit Test Coverage in InterSystems ObjectScript

https://www.youtube.com/embed/nUSeGHwN5pc
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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I downloaded and installed the trial version of Caché.
it is installed in c:\intersystems\Trycache
I changed the system environment settings so that
GLOBALS_PATH = c:\intersystems\Trycache
and PATH includes c:\intersystems\Trycache\bin
Caché works, and I can login, use the globals, etc...

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I have an Ens.StreamContainer which holds XML that was received, and I need to validate that against an XSD schema. The schema is very simple, only looking at the root element and maybe a couple other items to ensure the XML is what we expect before continuing the data flow.

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Question
· Nov 1, 2018
Pattern Match with Cache

I'm trying to interpret a ObjectScript pattern and I am stumped on the first part. I understand everything else but not sure what 1.A means. I know A stands for Alpha characters just not sure what the 1. means

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I can directly order over a MultiDimensional property, e.g.

set key=$order(obj.prop(key))

However I have a generic method that has to use the $property method, if I know the keys then I can just fetch a value with...

set value=$property(obj,"prop","key")

But if I don't know the keys then I am not aware of a solution to do this, e.g.

set key=$order($property(obj,"prop",key))

will not work.

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Question
· Oct 30, 2018
MSSQL Data Warehouse

Hello,

I have been trying to pull data through a linked server in SSMS from an InterSystems Cache Database for a while, this is to enable us to join the data to other source systems in our Data Warehouse.

I have set up an ODBC connection and a linked server to the database and can execute queries through OPENQUERY in Management studio, but the data is huge (> 100million rows). So when I execute a SQL query with a WHERE clause the query just spins.

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Hi, Community!

This is a digest of the Developer Community postings in October 2018.

Most viewed

IRIS API Explorer Application 204

Add Leading Zeros 185

Global Summit 2018 Highlights 158

Configuring LDAP authentication in InterSystems Caché using Microsoft Active Directory 137

Running Cache Studio on Linux 124

Time Loop in Cache Object Script 120

InterSystems Global Summit 2018 Highlights 118

Profiling code using Caché Monitor 116

JSON array or JSON object? 115

Creating complex JSON objects and accessing elements within 113

InterSystems IRIS Example Reference Architectures for Google Cloud Platform (GCP) 97

Execute Server Commands from Caché / Ensemble / IRIS 95

How to Publish an Application on InterSystems Open Exchange? 91

Create a Node/Express BackEnd and connect it to IRIS in less you say 'Mississippi' 66

Configuring Apache to work with InterSystems products on Linux 61

Caché eXTreme for .NET - direct access to globals from C# 52

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I am currently using InterSystems for patients data management related to intake treatment planning and delivery of dose.

should I create a new attribute to track Patient ID or using an existing attribute within Audit log ? what are the good practices guidelines?

If I use Event Data field to record Patient_ID is it possible out of the box to search entries for a specific Patient_ID ?

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I'm trying to execute a nodejs process to perform some work on a string from Cache/Mumps over to nodejs, then return the result from nodejs as a string back to the code in Cache and I was looking at the `$ZF` logic - it will let me output the results to a file (i.e. temp.txt) but I dont see a way to just get the output set back to an M variable like (and I know this is not the correct syntax, but just for example)

S myOutput=$ZF(-100, "echo something") ;; wrong syntax but just for example

W myOutput ;; want to write out "something" but of course this doenst work

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Question
· Oct 30, 2018
ID vs %ID in tables

What is the difference between %ID and ID in a database table? Both seem to reference the same column labelled ID.

For context, I am trying to create a viewer class for an existing persistent class.

Let us call the persistent class A, with SqlTableName = OldA.

The viewer class will be B with SqlTableName = A and ViewQuery = {select %ID, <other fields> from <some other class with the same fields as A>}

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Hi,

I was understanding the cluster configuration supported by the Cache. Have couple of queries around that:

1. In Cache version 2018.2, there is a shrading concept which splits the data of a Master Data server into multiple small data server which store shraded data.

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Announcement
· Oct 29, 2018
InterSystems Prague Meetup # 1

We had our first meetup of the Prague Meetup for InterSystems Data Platform last Thursday!

As it was our first such venue, the attendance was not large, but we believe it was a good start. Those who attended could learn about new features that InterSystems IRIS brings to our partners and customers as well as listen to a presentation discussing what it takes to migrate from Caché or Ensemble to InterSystems IRIS and eventually containerizing their applications.

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