Caché

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I've run into an issue where job IDs are being retained through multiple calls. My team is doing a rewrite of our system that allows VB6 apps and web apps to directly interact with our Cache databases.

The new process has those applications calling into a WebAPI which then calls into the routines.

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Discussion
Evgeny Shvarov · Sep 21, 2020
Unit Testing Naming Convention

Hi Developers!

Recently we discussed the naming convention on packages we deploy and even made some choices.

Here I want to have a conversation on the naming convention for unit tests.

Of course, we wish every good library has unit tests. Here is the documentation and some good articles(one, two, three) regarding it on the Developer Community.

Let's decide on the naming of UnitTests packages?

The suggestion is that unit test classes will all start with the UnitTest package name.

E.g. if your library's class name is:

johndoe.lib.class

The related unit test class will be:

UnitTest.johndoe.lib.class

What about folders?

The suggestion is that unit test classes will live separately from source classes, e.g. in /tests directory.

Here is the example of a repository with unit tests that are named and placed according to the proposal.

What do you think?

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Hi:

I have the following method in a buisness operation that works on localhost but not on our server . I think it's how the firewall is set up but i was wondering if there is a known way around this. It can't correlate XML as it returns a "The browser did not send any authentication information" error. I tried adding in username and password to http request to no avail. We could do a c# proxy on a server but i'm wondering if there is a known way to fix this error within intersystems. As a developer we don't have too much control over our Intersystems TIE server. 

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Article
Igor Titarenko · Sep 10, 2020 3m read
How To Create "Write-Only" Code

One of the leading benefits of ObjectScript is the speed and efficiency it allows for an experienced developer. Let's look at an example of how you can benefit from ObjectScript today.

Suppose you have a class that stores the names of your users. We'll call the class Data.User, and give it a string property Name. Next, we will need a method to create a new user or update an existing one. A naive, simplistic approach might look like this example:

 

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Whenever the Windows SNMP Service restarts, the snmpdbg log says the following. 

13:08:59 :Attempting initial TCP connection(s) with 1 Cache instances ...
13:08:59 :Get connection with ENSEMBLE on port 1972
13:08:59 :Connection refused on port 1972, check if Cache instance ENSEMBLE is started.
13:08:59 :Cache iscsnmp.dll initialized for 1 configs

Ensemble and all productions are running. I've set up Caché SNMP agent on many other servers in our company and those are working fine. However this one server won't budge. 

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Question
John Lisa · Jul 20, 2020
IDX Groupcast system from Cache'

Hello,

I posted in another thread a short while back regarding accessing (extracting) data from the Cache' database.

I am now told that the (healthcare) system is IDX Groupcast. The kick off project has not started yet but I would like to do some 'homework' and see the data model. I couldn't find too much about this in a Google search. Would anyone have a link or advise for doing some preliminaries? I am already versed in SQL server.

Thanks,

John Lisa

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I am trying to create a Procedure in Caché, but this message is showing:

<UNDEFINED>frmit+118^%qaqpsq *mt("v",1)

This is the procedure:

CREATE PROCEDURE testebi.sp_cargainicial()
BEGIN
    INSERT INTO testebi.Fato_Atendimentos (
    PK_OsProcedimento )
    SELECT ID
     from dado.TblOsProcedimento    ;    

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Question
Keith Davis · May 31, 2019
Indices Not Working

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:

 

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Question
OMAR ATEEN · Sep 2, 2020
hijri date

Hello all

How can I convert cache date to hijri date format in object secript.

please help.

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Dear,

I am beginner with this system.

I would like to do a migration of Cache.

I have at this time a windows XP with Cache 2007.1.5.802.0.7279.

I already install on a windows 10 the version of cache 2017.1.1 Build 111

The question is how do i have to transfer DB from the old pc to the new one?

Thank you very much for your help.

 

 

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Hi guys!!

In the system that I work, I came across an iterator pattern that uses the %Resultset library without performing the close after executing the query. Does anyone know how to say what are the impacts of not performing such a procedure?

If you have any model of iterator pattern made in caché to recommend as a good example, I will be grateful hehe  :D

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Hello everyone smiley

We are facing what seems to be a network problem while transferring HL7 messages from Ensemble/Healthshare to a distant target through TCP/IP.

Here is the version of the system in any case it could be useful: Cache for Windows (x86-64) 2017.2.1 (Build 801U) Wed Dec 6 2017 09:07:51 EST [HealthShare Modules:Core:14.02.2415 + Linkage Engine:15.03.9901]

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Question
Anna Golitsyna · Sep 11, 2020
Automatic Watch variables

I come from Visual Studio and now I use mostly Cache 2017 Studio. One debugging functionality I miss dearly is current local variables automatically appearing in the Watch Variables window together with their values. Yes, I can hover or type them myself but both actions take extra time which is especially noticeable when debugging unfamiliar code across many routines. Any Cache settings or plugins to that effect? If not then why not? And if nothing else is there in Cache, what are the alternatives or hacks in this respect?

Anna

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While the integrity of Caché and InterSystems IRIS databases is completely protected from the consequences of system failure, physical storage devices do fail in ways that corrupt the data they store.  For that reason, many sites choose to run regular database integrity checks, particularly in coordination with backups to validate that a given backup could be relied upon in a disaster.

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Question
Joao Palma · Aug 21, 2020
IRIS SQL Linked Table

Hi everyone

Anyone knows how can we add a column to an existing linked table in Cache to reflect the external SQL table?

I've tried different queries. It does not fail but does not add the column either...

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InterSystems has corrected a defect that can cause a build-up of orphaned processes consuming system resources. In extreme cases, this can cause a system to become unresponsive.

This defect affects the following versions:

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Question
Marcio Coelho · Sep 9, 2020
Build Python bind

I'm testing with an application I'm writing in python.
But I noticed that the pythonbind3 library will only work on the same machine where the cache is running. Is there really such a dependency?

I'm trying to run the examples that are in the / dev / python / samples3 folder, but they only work if I set "LD_LIBRARY_PATH" with the path to the cache installation folder.

But... I have this error when LD_LIBRARY_PATH is empty:

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Is Cache the preferred database source for extracting data elements for use in Health Share Patient Index or is there a significant benefit in sourcing data from a warehouse, data mart, or MV? I realize that could be a loaded question with 100 other questions that may follow, however, if there is a known advantage to extracting data from a particular data storage type, the answer may highlight that point. 

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