ObjectScript

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Hello,

Working on to learn very basic CUSTOM Business Service which sends to a EnsLib.File.PassthroughOperation.

But operation is not writing to File and erroring out (No Stream contained in StreamContainer Request")'.

How do convert the object to STREAM and wrap in the StreamContainer so the operation does not error and write to a file.

Thanks.

Persistent Class

Last answer 26 June 2019 Last comment 28 June 2019
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Hi,

We have a function that takes two parameters, the second one is for output value:

MyFunc(Param1,Param2)

 S Param2="it's all good"

Q 1

 

How can we detect if the caller called the function with one, or two arguments?

Meaning,  how to distinguish this call:

S Result=$$MyFunc(1)

from this call:

S Result=$$MyFunc(1,.OutVal)

 

Thanks!

Nael

Last answer 27 June 2019 Last comment 27 June 2019
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Hello,

Can anyone please provide me with a guide I can follow to create an entry in Cache's SSL/TLS configuration that would allow me to "speak" to an website via the Post method using SSL.

I need to simulate functionality that is provided by my browser but from with Cache.

The topics I have are:

1. From where do I source the certificate that will be used for this process?

2. What processing must I do on it to make it acceptable for Cache's SSL/TLS

3. What settings are required when filling the the form

 

Last answer 18 June 2019 Last comment 19 June 2019
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Forgive my lack of understanding, but I am working on a vendor created Cache database and the indexes specified in the classes for ODBC connections are not working. A few of them are created, but of the 50+ classes we have, only a handful of them are created when the class is compiled, yet no errors occur.

Example 1:

 

Example 2:

 

Last answer 31 May 2019 Last comment 18 June 2019
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1.About this article

Just like Caché pattern matching, Regular Expressions can be used in Caché to identify patterns in text data – only with a much higher expressive power. This article provides a brief introduction into Regular Expressions and what you can do with it in Caché. The information provided herein is based on various sources, most notably the book “Mastering Regular Expressions” by Jeffrey Friedl and of course the Caché online documentation. The article is not intended to discuss all the possibilities and details of regular expressions. Please refer to the information sources listed in chapter 5 if you would like to learn more. If you prefer to read off-line you can also download the PDF version of this article.

Last comment 17 June 2019
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Noticed some unexpected behavior when using $ZTH

Resultant values less than 1 are treated as strings and values >=1 are numbers.  Causing heartburn in $Query / $Next / $Order loops. Is there a setting somewhere that can change this?

Example:

// Parse the time out of a text string whose format is YYYYMMDDHHMMSSsssssssss   (lower case s = fractional parts)

Set MsgDT = "20180405000000001005933"
Set MsgDTH = $ZTH(($E(MsgDT,9,10)_":"_$E(MsgDT,11,12)_":"_$E(MsgDT,13,14)_"."_$E(MsgDT,15,23)),1)

//Do it again, but add a sec to the time string 

Last answer 15 June 2019 Last comment 17 June 2019
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I am trying to pull the word count from Microsoft Word document into Cache. Is there anyway to get the values of the extended file properties without opening the word document?  If I right click on a word document (Word does not need to be installed) I can see the additional properties that I want to reference however don't know how to access these without calling out to VBA or poweshell.

 

 

Last answer 14 June 2019 Last comment 17 June 2019
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Hey, developers, I have great news for you. A few days ago, GitHub was updated with the latest version of linguist project, which is being used to recognize source code types in repositories. It helps to determine which programming language had been used in every file of the repository. Repository statistics section shows the results of this module work.

 

Also  you can search across all available GitHub repositories for any chosen language. 

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Say you have a DICOM document with an input information sequence with many sequence items. You could access every item one by one by looping and querying the path by passing it to the GetValueAt method as demonsrated below.

This works but there are some performance issues on my system if the document has to  be read for each query (as far as I know, that is the case on my system). Is there a way of querying a path, which would return the sequence items as an array? I think I am missing something. With 900 items the process takes around 20 seconds currently.

Last answer 12 June 2019
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Hi Community!

I have very good news for the developers, who are using GitHub to host projects with InterSystems ObjectScript.  GitHub introduced the support of InterSystems ObjectScript this week!

How does it work?

Now all the .cls files in your repository are considered as InterSystems ObjectScript and highlighted according to the language rules of ObjectScript. For example WebTerminal, Samples-Data.

Last comment 11 June 2019
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I have a custom process that is parsing HL7 and inserting it into a table. Periodically the inserts fail with # due to error: ERROR #5803: Failed to acquire exclusive lock on instance of.... 

Traditional databases would wait until the lock is removed then do the insert, but cache fails. I'm sure it's my coding approach.

How can I work around this? A Try/Catch loop?

Thanks in advance.

Last answer 6 June 2019 Last comment 6 June 2019
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I have one persistent, xml-enabled class.
I need to convert objects of this class to XML.
However I need to project each object in different ways (depending on
where I send it), for example:

  • Different list of attributes are projected
  • Attributes have different names
  • ...

Is there a way to do that with XML Adaptor?

Last answer 7 June 2019
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Hello,

I assume there is a simple explanation for this, but I do get <OBJECT DISPATCH> error, when I am trying to set a global to a value.

My example is huge, but I reproduced it using Samples namespace:  

First I delete the Title from ##class(Cinema.Film)  - 3 

Secondly:

SAMPLES>s ref=##class(Cinema.Film).%OpenId(3)
SAMPLES>w ref.Title

SAMPLES>set ^AK(1)=$G(ref.Title)

SET ^AK(1)=$G(ref.Title)
^
<OBJECT DISPATCH> *Property 'Title' in class 'Cinema.Film' must be MultiDimensional

Last answer 4 June 2019 Last comment 6 June 2019
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Hi Community!

Please welcome a new video on InterSystems YouTube Channel:

InterSystems and Python QuickStart

 

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Hey Community!

The latest webinar, recorded by InterSystems Sales Engineers @Sergey Lukyanchikov and @Eduard Lebedyuk, is already on InterSystems Developers YouTube! Please welcome:

"Machine Learning Toolkit (Python, ObjectScript, Interoperability, Analytics) for InterSystems IRIS" 

 

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First, my $ZVERSION:

Cache for OpenVMS/ALPHA V7.x (Alpha) 2010.1.6 (Build 952_2 + Adhoc 17754) 3-JAN-2018 14:32:54.07

Second, my issue:

I believe my current villain is “incremental compiling.” I was able to compare early compile output with later compile output:

Compilation started on 04/10/2019 10:46:32 with qualifiers 'cuk'
Compiling class UnitTests.Task3496 incremental compile detected
Compiling routine UnitTests.Task3496.2
Compilation finished successfully in 0.800s.

Last answer 13 May 2019 Last comment 14 May 2019
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Have some free text fields in your application that you wish you could search efficiently?  Tried using some methods before but found out that they just cannot match the performance needs of your customers?  Do I have one weird trick that will solve all your problems?  Don’t you already know!?  All I do is bring great solutions to your performance pitfalls!

As usual, if you want the TL;DR (too long; didn’t read) version, skip to the end.  Just know you are hurting my feelings.

Last comment 10 May 2019
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Hi! I've been fiddling with linked tables to get data from other servers, and I encountered a problem that I'm curious about. Maybe I'm not using these tools as intended or there's more going on, so I'm asking here.

I'm running a query on linked table A, something simple like this:

select name from A where id = 5983658923646

And I get this error:

[SQLCODE: <-400>:<Fatal error occurred>]

  [%msg: <>]

Last answer 8 May 2019 Last comment 10 May 2019
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Hi!

I was trying to create a query that can be exposed as a stored procedure (function actually) that would return a resultset with a random number of columns. 

Unfortunately, it seems that unless I specify the ROWSPEC annotation on the Query method, I won't get any columns exposed. I was hoping to implement QueryNameGetInfo method and specify the names and number of columns I would be returning dynamically. But it seems that GetInfo information is simply ignored.

Here is my code:

Last answer 8 May 2019 Last comment 10 May 2019
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Hi Community!

New "Coding Talk" video is already on InterSystems Developers YouTube:

Create Your First InterSystems ObjectScript Code with IRIS Community, Github, Docker and VSCode

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Well, we now have two different platforms Caché and IRIS. With so many changes, that it makes so many difficulties to have the same sources for both platforms. I'm not arguing about the reasons for it. Some of the changes are really reasonable.

It's good when I can import code from Caché to IRIS and get it worked after all background job was done. In Caché we have %CacheStorage type used for Storages. In IRIS it automatically converts to %Storage.Persistent. So, If I develop on IRIS, I will have incompatible sources for Caché.

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