Preface

Before we begin, I'd like to mention that I am by no means an Ensemble expert, so take this with a grain of salt and please feel free to offer any suggestions for improvement. That being said, I have enjoyed working with Ensemble and wanted to share the approach I took to poll an external REST API for patient data in the hopes that it might help others with a similar goal.

If you get bored easily and just want to see some code, feel free to jump straight to the example on github. It uses dummy data (for obvious reasons) but the core principles should be the same.

The Goal

The goal of the

This 'feature' have been around for a long time, but I don't see any articles on it so I thought I would make everyone aware.

A method is provided to customize the appearance of the Cache cube icon in the system tray so different instances can be visually distinguished. When csystray.exe, the Cache/Ensemble cube program, starts, it will look for files named "up.ico" and "down.ico" in the \bin directory below the instance installation directory. If these .ico files are present, csystray.exe will load the icons and display them in place of the default blue and gray Cache/Ensemble cube icons.

Hi,

I'm developing an integration between Caché servers by ODBC conection, and I have the following problem.

In this call:

call COSClass_Methode('222169^^98^155^64530^06:30^021542987897458855441112877855^1^0^281992^GC')

the ODBC driver is truncating the string to 50 characters.

If I run this same command with $system.SQL.Shell(), this doesn't occur.
I did a test creating several parameters for COSClass_Methode, and they all have a 50 character limitation.

Does anyone know why the ODBC Cache Driver limits the number of characters per parameter of this type of call?
Or, how can I adjust this?

Example of

hi world, how can i have access to the BPL set rules in programming ?

for information: all logical rules are stored in routine data base, but i don't know how to have access to its corresponding name space.

thank you for helping

XDATA is used for a whole host of ISC libraries to store things like Zen pages, BPL logic and DTL transformations.

XDATA is the equivalent of XML config files of the JAVA world and JSON config files of the JavaScript / NPM world.

Whilst Atelier looks to shift source code to the disk, XDATA will remain a key component to source control our projects config / meta data.

I come across many developers who overlook XDATA, seeing it as an internal function of Cache and Ensemble and instead use globals to move meta data around, I've been there myself.

It might be because XDATA can feel a little clumsy to

Hi, Community!

This week we have two videos.

Please find the second Developer Community Video of the week on InterSystems Developers YouTube Channel: 

Turning Accountants into Explorers

How do we need to set a flag with quit command and what is it share some example?

Is it possible to execute a sql update statement from objectscript? This code isn't working for me.

Set tSQL = "UPDATE table Set Status = 'Completed' WHERE ID in (1,2,3,4)"
Set tStatement = ##class(%SQL.Statement).%New()
Set tSC = tStatement.%Prepare(tSQL)

If I write my dynamic sql to the event log, copy and execute it in the Management Portal, it works fine.

What are the pros and cons of developing a custom database driven routing engine vs. using the Ensemble standard routing engine. What I'm trying to accomplish with the custom routing engine is less manual intervention every time a new route is added. The con I can see with the custom engine is performance may lag behind the standard engine. My development vs. Intersystems essentially.

I appreciate feedback. Thanks!

Hi,

I've been trying to create a patient using FHIR, but all I seem to get back is:

{"resourceType":"OperationOutcome","issue":[{"severity":"error","code":"invalid","details":{"text":"FHIR create interaction invalid for this end point"},"diagnostics":"FHIR create interaction invalid for this end point"}]}

I've tried a variety of requests and read operations work, but create doesn't seem to. Has anyone run into this? Any ideas? Thanks.

These Globals are usually cleared out as part of the startup/shutdown processes. If your server never reboots how would you clean these out?

Hi, Community!

If you do not know much about DeepSee technology, this video on is exactly for you:

DeepSee Webinar

Why we using double dot in cache?what is the use of it?

I wanted to share a little tidbit which is in the Studio documentation (http://docs.intersystems.com/cache20152/csp/docbook/DocBook.UI.Page.cls…) but many people who have been using the InterSystems Studio for a long time missed the addition of this *very* useful feature, and every time I mention this to an audience  I see at least one face light up because of how excited they are to learn about it!

Within Studio, the Output pane (View -> Output) is actually misnamed.  It is actually an Input/Output window which can be used to run Caché ObjectScript commands!  

Does anyone send alerts via API / Web Services to an application such at Tivoli or CA Spectrum?  If so, can you share what commands you send?  e.g. If connection is down or queue depth > 200.   Thanks.

Hi guys,

How do you deal with underscore characters when using jsonProvider  and exporting or importing ?

for example:

USER>s jsonString="{""what"":""1"",""up"":""2"",""test_test"":""3""}"
 
USER>set status = ##class(%ZEN.Auxiliary.jsonProvider).%ConvertJSONToObject(jsonString,,.outputObj)
 
USER>w outputObj.what
1
USER>w outputObj.up
2
USER>w outputObj.test_test
 
W outputObj.test_test
^
<UNDEFINED> *test

we found out that we can access it like this, but not sure if it's the recommended method-

w outputObj.%data("test_test")

Regards,

Nael

version 2016.2.1 on windows

I accidently clicked the mouse into the output window of studio (where you get the compile results etc) and typed soemthing in there (by mistake) and it came back with <SYNTAX>.

I've been playing with it further, and it's like a cut down version of terminal.

I can "s x=1" and the "w x" and sure enough, it will display "1" (ie the value of x)

when I call one of my utilities ie "d ^dev", my utility runs as expected, but when I try entering a value (my utility was waiting on a read *x) it generated a <SYNTAX> error.

so it seems that it will generate "output" (or at least

In my previous posting about the new support in QEWD for JSON Web Token (JWT) support, I mentioned that it was a key step in enabling Micro-Service support in QEWD.  In this post I'll give some background to how they work and the thinking behind them.

If you haven't heard about Micro-Services and/or want to learn more, there's lots of information available if you do a Google Search.  Here's a good starting point:

https://smartbear.com/learn/api-design/what-are-microservices/

In a nutshell, they are all about breaking down, into separate self-contained units, the processes and functionality that

Hello, I just noticed that the following query is not allowing when using cached queries.

The compiler will accuse the code about missing a closing quote.
Just so you know, if I use this query dynamically it works, so I guess it's related to the code linting.

Query T() As %SQLQuery [ SqlProc ]{SELECT TOP 3 JSON_OBJECT('lit':'Employee from','t':%TABLENAME,'name':Name,'num':SSN) FROM Sample.Employee}

The bold part is what is causing the error.

Version 2017.

Hi, folks!

What could be the best backup/restore strategy for a small (less than 100MB) but very valuable database which is placed on AWS/DO virtual host?

1. Use AWS/DO backup/restore features?

2. External backup (as the most recommended)?

3. InterSystems backup?

4. Globals export to a zipped file?

5. cache.dat copy?

Looking for the most robust and easy to use/implement method of backup and restore in a way "setup and forget" (until it becomes needed :)

When I go through the Atelier Cheat Sheet on the connection configuration, it talks about an Eclipse master password and asks for two hints to remember the master password. However, it does not specify the master password. I can only assume the master password is the same as the Cache instance password.

Can anyone shed some light on this master password, where or how it is used, and any other useful information?

Hi

Is there anyway to catch info/warnings into an Ens.Alert when the inbound adapter is skipping  previously file (of any reason)?
Or any other way to pay attention to it.

In our log it usual have Warning or Info level and it stops there. We really want to create some kind of an alert when it happends.

All suggestions welcome

Sincerly,

Michael

I am beginner to ensemble and went through the introduction of ensemble in that they have mentioned three process of operations which is business service,business process, business operations is there  anyway to understand these process can anyone help me on this.

Thanks in advance. 

What is the Cache command to display the version of Cache?

To most of us it's almost dogmatic that $H can't be negative!

This is correct concerning the COS Special Variable $HOROLOG.
No doubt. It's the presentation of the actual date & time.
http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY…

For dates before 1841 it's suggested to use Julian date before 1841.
Good for calculations.
But what about values in $H_format ?
Conversion functions $ZD(), $ZDT(), $ZDH(), $ZDTH() and  
for SQL  $system.SQL.TOCHAR() and $system.SQL.TODATE()
take  care of the conversion to human readable date. You know this.
But Julian date as input

SOLVED

tl;dr how can you tell if a number is really a string

The original question has been updated/improved.

Equality comparisons on floating point numbers will produce different results...

"1.1"=1.1  //is true!

"0.1"=0.1  //is not true :(

This second comparison can be fixed with...

+"0.1"=+0.1 // is true!

The problem is, what if we don't realise that a value is a stringy number, or just overlook implementing this defensive check.

One solution would be to lint check %Float properties and return types that should originate from a number and not a string, as discussed here...

https://community.intersyste

I am trying to capture the write of a method to test the response in an unit test. I know everything works because one of my colleagues ran the code and did not froze on his machine.

I don't what is the cause of the freeze. I know that at line Use $io::("^"_$ZNAME) it stopes because i have put some write functions after every line in WriteCapture method and i only saw the first write function in terminal

I also used debug and in this case it didn't froze

PS: forgot to put the status in the XECUTE (vstrCommand, .status)

This is my method that captures the write:

ClassMethod WriteCapture(vstrComma

Hi, Community!

This post is a digest of the Developer Community postings in August 2017.

Most viewed

Your Workflow: Issue Tracking, Version Control etc.  243

Runtime type detection  217

Feeling the power of Caché   188

AES Encryption  159

from the roots to InterSystems  156

Load JSON from a file  149

Server-side way to disable logins for all users  149

Grafana-based GUI for mgstat, a system monitoring tool for InterSystems Caché, Ensemble or HealthShare  148

Caché and Ensemble 2017.1.x on OpenVMS - Recall  145

PDFs and Reading them  144

Winning in GIS competition  135

Frontier: A different way of working with REST  118

Handling images with Caché & JSON, and why 57 is a magic number  117

Greetings,

Is it possible to save Cache code into a file and then run it via command line?  

IE:  csession [ini] -U [ini] /path/cacheCodeFile.?

What I need to do is run a Cache script from the Linux command line.  The script will navigate data to produce a file and then it will exit back to the command line.

Thanks in advance for everyone's time.

I need to check if one class is a subclass of another (either direct or indirect).

For example:

Class Package.ClassA Extends %Library.Persistent
{
}

Class Package.ClassB Extends Package.ClassA 
{
}

Class Package.ClassC Extends Package.ClassB
{
}

In this example Package.ClassC is a subclass of 3 classes: %Library.Persistent, Package.ClassA, Package.ClassB.

So any of these checks should return 1:

Write ##class(Some.System.Class).IsSubclass("Package.ClassC", "%Library.Persistent")
Write ##class(Some.System.Class).IsSubclass("Package.ClassC", " Package.ClassA")
Write