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Article

David Hockenbroch · Sep 11, 2024 9m read

Do not let the title of this article confuse you; we are not planning to take the InterSystems staff out to a fine Italian restaurant. Instead, this article will cover the principles of working with date and time data types in IRIS. When we use these data types, we should be aware of three different conversion issues:

Converting between internal and ODBC formats.
Converting between local time, UTC, and Posix time.
Converting to and from various date display formats.

#Code Snippet #ObjectScript #SQL #Tips & Tricks #InterSystems IRIS

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Article

David Hockenbroch · Nov 5, 2024 7m read

Recognizing Barcodes With Embedded Python

As we keep updating our software, we often realize that we require more and more modern solutions. So far, only one major piece of our software relies on reading barcodes in documents and images. Since Cache did not have a means of reading barcodes in the past, we have always achieved our goals by using a Visual Basic 6 application. However, it is no longer an ideal solution because it is currently complicated to maintain it. IRIS also lacks this capability, but it has recently got an option that makes up for it: embedded Python!

#Code Snippet #Coding Guidelines #Embedded Python #JSON #ObjectScript #Python #Tips & Tricks #InterSystems IRIS

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Article

David Hockenbroch · Oct 14, 2024 9m read

What's the Catch?

Many programming languages use the try-and-catch construct to handle runtime errors gracefully. If the code within the try block encounters an error, it will throw an exception to the catch block, where the error handling occurs.

#Beginner #Code Snippet #Coding Guidelines #Debugging #Error Handling #ObjectScript #Tips & Tricks #InterSystems IRIS

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Article

Keren Skubach · May 5 4m read

Creating a primitive extension in a FHIR resource

An extension “extends” or enhances a FHIR resource or a data element in a custom way. The extension can be added to the root of a resource, such as “Patient.ethnicity” in US Core profile, and they can be added to individual elements such as HumanName, Address or Identifier.

Did you know that you can also add an extension to a primitive data type?

Primitives usually store a single item and are the most basic element in FHIR. For example: "Keren", false, 1234, 12/08/2024 etc.

For example, the patient resources might look like this:

#Code Snippet #Coding Guidelines #FHIR #Health Connect #InterSystems IRIS for Health

Open Exchange app

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