Posts by Robert Cemper on InterSystems Developer Community

Open Exchange App Global Scanning & Slicing

Globals, ObjectScript, SQL, Caché, Ensemble, InterSystems IRIS

This is a coding example working on IRIS 2020.1 and on Caché 2018.1.3 
It will not be kept in sync with new versions      
It is also NOT serviced by InterSystems Support !

In most cases, a global used by default storage has just 1 subscript level that represents the IDKEY.
For an index-globals we may see 2 or more subscript levels.
Arrays, or parent-child relationships or persistent classes extending a base data class
are examples where we see more levels. Though all these globals are quite uniform.

Robert Cemper 6 days ago

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Open Exchange App Show Global by SQL SELECT

Globals, SQL, Testing, Tips & Tricks, Caché, Ensemble, InterSystems IRIS

This is a coding example working on IRIS 2020.1 and on Caché 2018.1.3 
It will not be kept in sync with new versions      
It is also NOT serviced by InterSystems Support !

Globals in Caché / Ensemble / IRIS are normally invisible over SQL access
This example shows how to overcome this limit.

Robert Cemper 6 days ago

Last reply 6 days ago

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Open Exchange App SQL for ^ERROR Global

Error Handling, Globals, Mapping, ObjectScript, SQL, Tips & Tricks, Caché, Ensemble, InterSystems IRIS

This is a coding example working on Caché 2018.1.3 and IRIS 2020.2 
It will not be kept in sync with new versions 
It is also NOT serviced by InterSystems Support !

Standard error logs in IRIS / Caché / Ensemble are written global ^ERRORS.
As this piece dates back some decades back to previous millennium its structure
is far from the typical SQL storage structures.

Robert Cemper 10 days ago

Last reply 7 days ago

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176

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Open Exchange App ZPMshow - a helper for tired fingers

GitHub, HTML, ObjectScript, ObjectScript Package Manager (ZPM), Terminal, Tools, InterSystems IRIS

This is a coding example working on IRIS 2020.2 
It will not be kept in sync with new versions 
It is also NOT serviced by InterSystems Support !

A helper to List, Install, Uninstall ZPM packages

The offer of ZPM is growing daily and the short names and
acronyms of the offer are sometimes hard to understand and
also hard to type with my lazy fingers.

Robert Cemper 12 days ago

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List of Command Line Utilities ?

DevOps, System Administration, Caché, InterSystems IRIS

where can I find a list of all command line utilities with a short description?

Robert Cemper 21 July 2020

Last reply 19 November 2019

+ 7 1 3

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487

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Intelligent Global Compare wanted

Analytics, Globals, Caché, InterSystems IRIS

I'm looking for some existing solutions to compare 2 global structures.

- by subscripts
- if subscripts match then by content.

Robert Cemper 21 July 2020

Last reply 16 November 2019

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166

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moving code between IRIS and CACHÉ

Atelier 1.3, Object Data Model, ObjectScript, Studio, VSCode, Caché, InterSystems IRIS

I face the challenge to have a bunch of classes on IRIS and CACHÉ in parallel
until all systems are migrated to IRIS.

Applying changes in Caché development environment and moving to IRIS is no problem

But if I have to apply a fix on IRIS there seems to be no clean way back to Caché.

Robert Cemper 21 July 2020

Last reply 22 July 2020

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402

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Un-Typical persistence

Data Model, Globals, ObjectScript, Testing, Tips & Tricks, Tools, Caché, InterSystems IRIS

This is a coding example working on Caché 2018.1.3 and IRIS 2020.2 
It will not be kept in sync with new versions 
It is also NOT serviced by InterSystems Support !

During my search for a snapshot of a persistent object,
I met a feature that I would like tho share as it could be useful in some special situations.
My trigger was to have a before- and an after-image during unit testing.

Robert Cemper 21 July 2020

Last reply 7 days ago

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292

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Open Exchange App snapshot to JSON

JSON, Object Data Model, InterSystems IRIS

This is a coding example working on IRIS 2020.2 
It will not be kept in sync with new versions 
It is also NOT serviced by InterSystems Support !

This is a sample to use %JSON.Adaptor class available in IRIS
to produce a snapshot of your object.

Robert Cemper 21 July 2020

+ 5 0 2

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210

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Open Exchange App A function to check if string is JSON object

JSON, ObjectScript, Tips & Tricks, Caché, Ensemble, InterSystems IRIS

This is a coding example working on Caché 2018.1.3 and IRIS 2020.2 
It will not be kept in sync with new versions 
It is also NOT serviced by InterSystems Support !

This an example of a customized SystemFunction extension (ZZISJSON) in Caché & IRIS
This time it is to be included in %ZLANGF00.mac

A JSON string is mostly imported from a file or over REST.
You rely on a clean and compatible structure. This is the check.

Robert Cemper 21 July 2020

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Robert Cemper

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A helper to List, Install, Uninstall ZPM packages