Caché

Hi,

I am trying to support a use case where a test instance is created from a production backup.  At a high level, the process works by mounting all relevant file systems and then bringing the instance up. This works well as long as the file systems are mounted using same mount points as the source instance. However, I would like to support a case where file systems are mounted using different paths. 

For example, if the source instance uses the mount points "/cache" and "/cachejournal", assume that the restore process mounted the same file systems at "/cache_123" and "cachejournal_123". I am wondering what needs to be done to make the instance recognize the new paths. 

I have tested by changing the paths in cache.cpf file (all data and journal directory paths). All except "cachelib" seem to work fine. When cachelib's path is changed in cache.cpf, instance fails to come up with an error similar to

How to create macro function and  what is the difference between $$$ and $$ function.

Hi all,

Does anyone know how to bind data and display it on

    %ZEN.SVGComponent.sprite

class objects?

The only example I could find in the documentation was:

http://localhost:57777/csp/samples/ZENTest.SVGSpriteTest.cls

 

where I could only statically display a label. Anyone have any have any experience here?

Thanks,

Bob Harris

Is there any simple code in Cache using FHIR to understand the relationship between them? If so can anyone provide some example.

About the Ontodia library

First of all, I think we should provide some background information about Ontodia and Caché DBMS. Let’s start with a less known product, Ontodia. Ontodia is the result of a joint project of the ISST lab of the ITMO University and VISmart, a software development company specializing in the semantic web domain. The Ontodia service was created as a web application for visualizing linked data and ontologies. We created this service because we couldn’t find simple, accessible and efficient tools for convenient visualization of linked data.

A typical use case for Ontodiа could be described as a sequence of 3 steps:

Looking for a way in which I could possibly pass a flag through a property when performing an Insert statement, on a mapped class.

insert into my.class (serialNumber, modelNumber, myFlag) value ('testSerial', 'testModel', 0)
    myFlag is not stored in the DB.

The mapped class then calls a legacy routine (MAC) via CodeMode = 'objectgenerator', (Insert method within the 'objectgenerator')

Within the legacy routine, I am setting an index... but I don't always want to set it (multiple inserts, and I will only set the index on the LAST insert)

How can I pass that flag through the insert call?  I attempted to make the property 'transient' and 'computed'.  But looking at the compiled code (INT), upon performing the Insert the value is nulled and the set, therefore wiping out whatever I passed in.

Is there anyway to do this?

Prmoetheus is a really good to combine measures, and export them in graphical dashboards

https://prometheus.io/

http://grafana.org/

 

I would like to write some a caché exporter for Prometheus, that will allow to expose some metrics of the database, or even some metrics of my own

Did anyone already tried ?

Thank for the answer

Hello everyone.

I'm new to Caché.

I would like to know how I can connect my PHP application to the intersystems database.

Is it the same as MySQL?

Need help.

Thank you

Recently I have encounter an issue to get the columns out from a query without execute it.

For example:

I have a Query looks like below. How can I get the 'col1,col2,col3,col4' or the text of the query("select col1,col2,col3,col4 from mytable") back?

Query myquery() As %SQLQuery(CONTAINID = 0) [ SqlProc ]
{
 SELECT col1, col2, col3,col4
 FROM  mytable
 }
 

Hello All,

I have a question / issue regarding the calling list.FindOref(<object from indexOpen call>)
Here is a simple way to reproduce the issue: 
2 classes: Utility.contacttypes and Utility.person
*************************

Class Utility.contacttypes Extends %Persistent
{
Property description As %Library.String(TRUNCATE = 1);
/// Index for property description
Index descriptionIndex On description [ Unique ];
}

************************

Note (Sept 2018): There have been big changes since this post first appeared, I suggest using the Docker Container version, the project and details for running as a container are still in the same place  published on GitHub so you can download, run - and modify if you need to

Something that shot up the popularity stakes last week was this article on a very interesting initiative: RealWorld:

https://medium.com/@ericsimons/introducing-realworld-6016654d36b5

I decided it would be a good idea to use this as a way of creating an exemplar implementation of a RESTful back-end using QEWD against their published API (https://github.com/gothinkster/realworld/tree/master/api)

The results are here:

https://github.com/robtweed/qewd-conduit

Actually it's the first 3rd-party implementation out of the blocks!

Although I state that it uses Redis as the database, you can seamlessly swap in Cache instead and it will work without any change apart from editing the QEWD startup to instruct it how and where to connect to Cache

We at George James Software are pleased to announce the release of version 2.6 of Serenji, our editor and debugger for Caché, Ensemble and HealthShare.

The main enhancement in 2.6 is the ability to run on a Linux <edit> or OS X </edit> workstation using Wine 1.8. More release details are here.

This is a free upgrade to users already holding an activation key. For new users a free 30 day evaluation period is granted upon installation.

John Murray
Senior Product Engineer
George James Software

Hi ,

From the below code, we are able to import the class file to the namespace ( specified path is C:\temp\distr ) 

I have a class file and a folder in the above specified path. When i run the code, it is importing only the class file but not the class files present in folder. 

I would like to know is there any code to import the class files present in folder as well.Â