Article Eduard Lebedyuk · Aug 9, 2016 2m read

Tips & Tricks - Process-private Globals as a class storage

Process-private Globals  can be used as a data global in storage definition. That way, each process can have its own objects for the class with ppg storage. For example lets define a pool, which can:

  • add elements to a pool (ignoring duplicates)
  • check if an element exists in the pool

Here's the class:

/// Stores unique identifiers
Class Utils.Pool Extends %Persistent
{

Property Value As %String;

Index IDKEY On Value [ IdKey, PrimaryKey, Unique ];

Method %OnNew(Value As %String = "") As %Status [ Private, ServerOnly = 1 ]
{
    Set .
#Caché #Code Snippet #Data Model #Globals #Object Data Model #ObjectScript #Tips & Tricks
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Question Paul Riker · Aug 9, 2016

Storage Management

We want to isolate the storage of our CCDAs from our HL7 V2 data, but keep them under the same namespace. From my understanding, I should create a new database then store those classes related to CCDAs in that database. Is this the correct approach?

#HealthShare #Databases #Namespace #HL7
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Question Laura Cavanaugh · Aug 11, 2016

Calling javascript method from Zen method, with parameters

I'm running into difficulty calling a javascript method from a Zenmethod.  I pass in a parameter, but in the javascript method the parameter is undefined.  Here is the code:

...

...

Method doSave() [ ZenMethod ]
{

          If (..ID = "AddNew"){
                    //do save code here                   
                    &js<

#Caché #JavaScript #ZEN
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Article Mike Kadow · Aug 12, 2016 2m read

NewBie's Corner Session 16 Introduction to New Concepts

NewBie's Corner Session 16 Introduction to New Concepts

Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.

A number of new concepts are introduced in this session that will be developed more fully in subsequent sessions. It is necessary to at least introduce these concepts here because they are all interrelated.

Older style of MUMPS Programming

A routine has access to all the variables it creates. When Routine-A calls Routine-B and Routine-B calls Routine-C, and so forth, this is known as a Call Stack.

#Caché
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Question Eduard Lebedyuk · May 23, 2016

REST and IO redirection

Problem: I have a REST broker, and if I hit a code block, which does IO redirection, the REST reply becomes broken in one of the following ways:

  • Binary output
  • No output
  • First 4096 characters of the reply are missing

Consider the following REST broker:

Class A.REST Extends %CSP.REST
{

XData UrlMap
{
<Routes>
<Route Url="/Test/:redirect" Method="GET" Call="Test"/>
 </Routes>
}

ClassMethod Test(Redirect As %Boolean = {$$$YES}) As %Status
{
    Set str = $TR($J("",4098)," ","1") // Get a string with the length of 4098 symbols
    
    Do:Redirect .
#Caché #ObjectScript #REST API
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Article Sean McKenna · Aug 5, 2016 8m read

HealthShare's new SDA extensions

Creating and working with the new SDA extensions for storage of custom data elements

In HSCore 15.01, there is a new way to store custom data elements.  HealthShare now had the ability to use custom extensions on many SDA elements.

This article will:

  1. Show how to set up your system to use SDA extensions
  2. Create a new SDA extension property
  3. Use the new SDA extension property in HL7 transactions
  4. Interact with the new data
  5. Show new SDA extension used in a customization of Patient Summary Report
 
   
#HealthShare #Studio #Terminal #HealthShare #Mapping
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Question Ponnumani Gurusamy · Aug 12, 2016

How to manage the CSP page with user input fields?

How to get a user input in cache . Below this program run in browser but displayed the error of "

Caché Server Pages Version 2016.1.1.108.0

Error Condition      The processing of the request was interrupted

CSP application closed the connection before sending a complete response"

<html>
<head>
<title>User input </title>
</head>
<body>
<script language="Cache" runat="server">
r "enter 1ST num",x
r "Enter 2ND num",y
s z = x+y
w z
</script>
</body>
</html>
 

#Caché #ObjectScript #CSP
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Question Laura Cavanaugh · Aug 9, 2016

Credentials in Ensemble - working in other namespaces

Hello community,

I have productions running in several different namespaces.  They all use a common credentials ID for sending email, which is set up in only one of the namespaces.  The documentation says that credentials are entered by namespace.  When I ran a production in a second namespace, the error log said that credentials were not found (expected), but later attempts to send a file thorugh the production did successfully send an email.  I'm wondering if Ensemble is able to look in other namespaces for the same credentials ID?

#Ensemble #Authentication #Business Operation
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Question GUILHERME CRUZ DA CUNHA · Aug 10, 2016

Problem in the Property parameters (DISPLAYLIST | VALUELIST) [ SOLVED ]

I'm with a problem in a property, where she has two parameters that conflict, DISPLAYLIST and VALUELIST.

In screen when I'll go to set value in the field, the CACHE transform internally the property of LOGICAL to DISPLAY with propertynameLogicalToDisplay(propertyname), far so good.

My problem is in the property, why, by default she send the value as DISPLAYLIST, in hour of transformation as the value is DISPLAY MODE the error occurs.

How I do to that default value be VALUELIST and not DISPLAYLIST?

#Caché
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Article Benjamin De Boe · Jun 21, 2016 7m read

iKnow demo apps (part 4) - Rules Builder Demo

This is the fourth article in a series on iKnow demo applications, showcasing how the concepts and context provided through iKnow's unique bottom-up approach can be used to implement relevant use cases and help users be more productive in their daily tasks. Previous articles discussed the Knowledge Portal, the Set Analysis Demo and the Dictionary Builder Demo, each of which gradually implemented slightly more advanced interactions with what iKnow gleans from unstructured data.

This week, we'll look into one more demo application, the Rules Builder Demo, in which we'll build on previous work but again climb a step on the level ladder, implementing a more high-level use case than in the previous ones. The idea came from an opportunity where we were asked to help the customer in the finance sector make sense of vast volumes of contract data. They wanted to semi-automate the extraction of logical rules from that text (in fluent legalese!), so they could be fed into other systems. While this was an exciting use case to work on (and more on it in this GS2016 presentation), we've also used it in other cases, for example to extract mentions of ejection fraction from Electronic Health Records.

#InterSystems Natural Language Processing (NLP, iKnow)
Open Exchange
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Question Brian Palmund · Aug 9, 2016

How to get custom HTTP request headers

I cant find any description on how to read custom http request headers in a REST service.

On some occations i want to read http headers passed along when customers uses our REST API or headers added by the CND provider. Does anyone know how to read these http headers?

For example:
cloudflair.com sends a vistors country information along to the server using a customer http header called "CF-IPCountry". We would like to read this information and use it for statistics.

#Caché #REST API
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Article Benjamin De Boe · Jun 14, 2016 5m read

iKnow demo apps (part 3) - Dictionary Builder Demo

This is the third article in a series on iKnow demo applications, showcasing how the concepts and context provided through iKnow's unique bottom-up approach can be used to implement relevant use cases and help users be more productive in their daily tasks. Previous articles discussed the Knowledge Portal, a straightforward tool to browse iKnow indexing results, and the Set Analysis Demo, in which you can use the output of iKnow indexing to organize your texts according to their content, such as in patient cohort selection.

This week, we'll look into another demo application, the Dictionary Builder demo, in which we'll marry iKnow's bottom-up insights with top-down expertise, organizing our domain knowledge into dictionaries that are composed of the actual terms used in the data itself. Sticking to a top-down approach only, you'd risk missing out on some terminology used in the field that a domain expert sitting in his office wouldn't be aware of. 

#InterSystems Natural Language Processing (NLP, iKnow)
Open Exchange
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Article Mike Kadow · Aug 9, 2016 4m read

NewBie's Corner Session 15 Executing Routines and Labels

NewBie's Corner Session 15 Executing Routines and Labels

Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.

Routines and Labels

Routines are computer programs with a number of executable code lines.

Labels (also called tags) are points in a routine that can be called (executed). They subdivide routines into manageable modules (or subroutines).

#Caché
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Question Marc Alcala · Aug 4, 2016

Global references done internally by Cache

Using the method  ##class(%SYSTEM.Process).GlobalReferences() I'm able to know how many global references has been done in the process. But I'd like to know how many of those references has been done by my code and how many has been done by Cache itself.

When from a class I execute a method of another class, Cache is internally accessing globals (I suppose to get the code of the called method). I would like to not count those accesses done by Cache.

For example:

I've a method (Statistics) that counts the number of references done by another method (A).

#Caché
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Question Brian Schoen · Jul 14, 2016

Ensemble - Suppressing multiple Alerts (e.g. NAKs, validation, etc) using Ens.Alert process

We are using the Ens.Alert alerting process to send alerts (via email) to our external service desk application (Service Now). 

Is there a way to suppress multiple alerts for the same error (within a specified timeframe)? (Either Rule or BPL?)  (i.e.  a system starts sending bad data which fails validation or is NAKd by a downstream system -- causing every message to create an Alert.)

Otherwise, every message creates an Alert, which creates a ticket in Service Now.  

Thanks,

Brian

Cache for UNIX (IBM AIX for System Power System-64) 2015.2.

#Ensemble
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Question Scott Roth · May 9, 2016

Production Monitor

At the Global Summit several folks had mention that they developed their own production monitor. I am looking to create a monitor similar to eGate that we only display those Services/Processes/Operations that are in trouble, and those Errors that are showing up in the Event Log. Does anyone have any examples of this?

Thanks

Scott Roth

The Ohio State University Wexner Medical Center

#Ensemble #Management Portal #Monitoring #ObjectScript #Studio
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Question Scott Beeson · Aug 4, 2016

Where to find cache.node globals download?

Using Node.js with Caché - Introduction says the following:

The cache.node module is the Node.js interface for the GlobalsDB kit, which can be obtained from the GlobalsDB download page (http://globalsdb.org/downloads/). The Node.js interface can be used with either Caché or the free GlobalsDB database.
The installation kit includes detailed documentation on how to install and configure the cache.node module.

However, http://globalsdb.org/downloads gives a 404 and http://globalsdb.org just redirects to intersystems.com

Where can I find the files I need?

#Caché #Globals #Interoperability #Node.js
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Question Bapu Hirave · Aug 4, 2016

Windows service checks using Cache

Hello Cache experts,

Has anyone tried using Cache object script to check windows service is running or windows service installed or not on same computer or remote computer ? basically i am trying to develop cache program which will check "windows service" running or installed on current computer or remote computer. Based on the status of this windows service, i want to write some business logic in our application. Any suggestions will be more welcome

#Caché #Callout #ObjectScript
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