Mapping

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I am putting together a new interface to take in a CSV file and output an HL7 message.

I have used the record mapper to create the source class and I am putting together the transform, but when trying to test it I am not seeing the data populate the HL7 as intended.

 

 

Last answer 2 days ago Last comment 2 days ago
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The InterSystems DBMS has a built-in technology for working with non-structured data called iKnow and a full-text search technology called iFind. We decided to take a dive into both and make something useful. As the result, we have DocSearch — a web application for searching in InterSystems documentation using iKnow and iFind.

Last comment 1 April 2019
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How Tax Service, OpenStreetMap, and InterSystems IRIS
could help developers get clean addresses

 

Pieter Brueghel the Younger, Paying the Tax (The Tax Collector), 1640

 

In my previous article, we just skimmed the surface of objects. Let's continue our reconnaissance. Today's topic is a tough one. It's not quite BIG DATA, but it's still the data not easy to work with: we're talking about fairly large amounts of data. It won't all fit into RAM at once, and some of it won't even fit on the drive (not due to lack of space, but because there's a lot of junk). The name of our subject is FIAS DB: the Federal Information Address System database - the databases of addresses in Russia. The archive is 5.5 GB. And it's a compressed XML file. After extraction, it will be a full 53 GB (set aside 110 GB for extraction). And when you start to parse and convert it, that 110 GB won't be enough. There won't be enough RAM either.

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Sometimes global mapping of the same globals can be defined in different ways. E.g., I need to define it for 3 globals ^qAuditC, ^qAuditLog, ^qAuditLogC from the same database named APP-NOJOURN. Which approach should be better from the performance point of view?

1) qAudit* => APP-NOJOURN (one record in global mapping table)
or

2) qAuditC => APP-NOJOURN
qAuditLog => APP-NOJOURN
qAuditLogC => APP-NOJOURN (three records in global mapping table)

Last answer 11 March 2019 Last comment 13 March 2019
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Headache-free stored objects: a simple example of working with InterSystems Caché objects in ObjectScript and Python

Neuschwanstein Castle

Tabular data storages based on what is formally known as the relational data model will be celebrating their 50th anniversary in June 2020. Here is an official document – that very famous article.  Many thanks for it to Doctor Edgar Frank Codd. By the way, the relational data model is on the list of the most important global innovations of the past 100 years published by Forbes.

On the other hand, oddly enough, Codd viewed relational databases and SQL as a distorted implementation of his theory.  For general guidance, he created 12 rules that any relational database management system must comply with (there are actually 13 rules). Honestly speaking, there is zero DBMS's on the market that observes at least Rule 0. Therefore, no one can call their DBMS 100% relational :) If you know any exceptions, please let me know.

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The following post outlines an architectural design of intermediate complexity for DeepSee. As in the previous example, this implementation includes separate databases for storing the DeepSee cache, DeepSee implementation and settings. This post introduces two new databases: the first to store the globals needed for synchronization, the second to store fact tables and indices.

Last comment 2 January 2019
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I created a  record map and my DTL works fine. I would like to query one of the values in my input record mapped class. How would I do that? I've tried request.Field1, document.Field1 and can't see to get my rule to work. Any help would be appreciated. Thanks.

Last answer 20 October 2017 Last comment 1 November 2018
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It's well-known that namespace global mapping helps us to write code independent on database storage details (Caché instance name, directory path). But sometimes we can face problems accessing an unsubscripted global which has subscript level mapping (SLM) defined. Most of such cases are evident and associated with administrative tasks that should be done on database level, but some of them can confuse even an experienced developer. Just to start:

Last comment 13 October 2018
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I have been building Business Processes in Ensemble for a few months and in a process i'd use a combination of data from the request that started the process and context variables that where filled by earlier calls in the process as input for a data transformation. I do not know how to achieve that.

Last answer 23 August 2017 Last comment 9 October 2018
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The following post outlines a more flexible architectural design for DeepSee. As in the previous example, this implementation includes separate databases for storing the DeepSee cache, DeepSee implementation and settings, and synchronization globals. This example introduces one new databases to store the DeepSee indices. We will redefine the global mappings so that the DeepSee indices are not mapped together with the fact and dimension tables.

Last comment 17 September 2018
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Hi -

 

I need an example of what I need to "map" to have a common dashboard defined so it will visible/usable in multiple namespaces.

 

I have created a dashboard in "SAMPLES" (namespace and database) and I would like to have this dashboard be accessable/useable from a 2nd namespace, but I'm not having any success in doing mappings (global/package/routine/data) to be able to get DeepSee to be able to see/display the dashboard.

What is the minimum that I need to map?

Last answer 20 August 2018 Last comment 25 November 2015
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To deploy a DeepSee solution, the docs recommend that you define a namespace on the reporting (mirror) server, and "define mappings to access the application data, application code, DeepSee cube definitions, and DeepSee data on this server".  (http://docs.intersystems.com/ens20152/csp/docbook/DocBook.UI.Page.cls?KEY=D2IMP_ch_overview#D2IMP_overview_architecture)

Last answer 5 January 2016 Last comment 19 August 2018
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The Art of Mapping Globals to Classes (4 of 3)

The forth in the trilogy, anyone a Hitchhikers Guide to the Galaxy fan?

If you are looking to breathe new life into an old MUMPS application follow these steps to map your globals to classes and expose all that beautiful data to Objects and SQL.

If the above does not sound familiar to you please start at the beginning with the following:

The Art of Mapping Globals to Classes (1 of 3)

Last comment 12 June 2018
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What if you could serialize/deserialize objects in whatever format: JSON, XML, CSV,...; attending different criteria: export/import some properties and not others, transform values in this or that way before exporting/importing,...; and all of this without having to change the class definition? Wouldn't that be great??

Well, perhaps it's a goal too ambitious to reach 100% but, exploring this idea, I've developed a bunch of classes that I thought it was good to share. If you want to test, change, modify or improve the code, or just take a look at it, you can do it here. There you'll find a more detailed explanation (see Readme.md)

Be aware, this is a proof of concept for myself done in spare times, sure it's not robust enough or it can be done much better... but, I was just playing...ok, I could just wait to the new JSON Adaptor (coming soon!) that sure is going to resolve much more scenarios in a cleaner way, but... meanwhile... :-) ...

Last comment 26 April 2018
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I have a text file that is fixed width delimited and am using a BPL to process this file, ultimately performing a transform from the text file to an HL7 message. I created a DTL, mapping from the recordmap to the HL7. In my BPL, I am performing some loops and other logic (that all is working). My issue is what to do when I perform the Transform.

Last answer 2 November 2017
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The Art of Mapping Globals to Classes (3 of 3)

 

If you are looking to breathe new life into an old MUMPS application follow these steps to map your globals to classes and expose all that beautiful data to Objects and SQL.

 

If the above does not sound familiar to you please start at the beginning with the following:

 

The Art of Mapping Globals 1

Last comment 2 November 2017
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Hello Community,

I need advice converting a comma delimited string container with multiple records into some type of recordmap that iterates through all the records.

My string container has several records and I would like to loop through the number of records in the string container and transform each record in the container individually. Number of records will vary but the number of fields per record is static (28 fields). Meaning after every 28 fields, a new record begins. The goal is to convert to individual delimited flat file records.

Last answer 23 October 2017 Last comment 16 October 2017
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For a HL7 production, How will I be able to use two different segment level transformation (sub transform) in the main transform.

For Ex:
Few mappings from source PID --> target ZAX segment (subtransform 1)
Few mappings from source PV1 --> target ZAX segment (subtransfrom 2),

In the main mappings, I have used subtransform 1 followed by subtransform 2. It doesn't seem working fine.

Any suggestions please. Thanks:)

Last answer 11 September 2017
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By now it's a commonplace how to implement a basic REST API in Caché and there is good documentation about it here: REST in Caché

A question that comes up from time to time is:

How can I make a parameter in my REST url optional?

Simply put, is it possible to create a URL map in Caché that maps a URL like this:

Last comment 23 July 2017
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Hello,

Are there any utilities/api in HealthConnect 2016.2.1 that will allow conversion of XML virtual document to Json format? We were thinking to convert HL7 ADT message to XML via Ensemble DTL and then send it to another BP to convert to Json format for transmission via Web Services. To my understanding there isn't anyway to represent Json as a virtual object so it can be use for direct mapping of HL7 2.x message to Json via Ensemble DTL.

Thanks

Yuriy

Last answer 20 July 2017 Last comment 15 May 2017
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