InterSystems ObjectScript is a scripting language to operate with data using any data model of InterSystems Data Platform (Objects, Relational, Key-Value, Document, Globals) and to develop business logic for serverside applications on InterSystems Data Platform.
For some years I missed being able to offer, to everybody interested in ObjectScript, a tutorial more or less complete, to start with ObjectScript. Something that could help more and make things easier to those new developers that come to our technology... something intermediate, halfway between the common "Hello World!", that doesn't really get you further, and the "Advanced Training", that is unaffordable because of lack of time,etc.
If there were something truly helpful not only as an introduction to the ecosystem, but as a starting point, as a boost, to really start to walk into ObjectScript and move forward by yourself... wouldn't that be awesome?
So I've been reviewing a lot of questions posted in the InterSystems community regarding NULL properties in JSON. I've also been reviewing the JSON documentation. None of these things have been able to help me so far.
1. We don't seem to have the %JSON.Adaptor class available for us to use in our system.
2. I'm not really confident enough to create JSON Type classes or backporting code, etc.
Recently, I needed to create templates for newsletters. I couldn't find any tools, so I decided to use the CSP (Caché Server Pages) to build the templates.
Let's figure out how to make a newsletter similar to Weekly OEX Digest.
We have a couple of systems that send us a URL link to a PDF instead of base 64 encoding it in the HL7 message. Has anyone ever tired to take that URL, and retrieve the file off of the server to save it off somewhere?
Thanks to everyone for participating in the Advent of Code 2021and coding in InterSystems ObjectScript! We're pleased to introduce the winners and distribute all the prizes!
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I was editing the properties of a persistent ObjectScript class the other day and noticed that the storage definition wasn't updating to reflect my latest changes.
In this case, I deleted a property that was no longer needed from the class definition, saved, recompiled, and still saw it in the storage definition.
I've found a couple of methods that will tell me whether a package is mapped from another database, but not which database. Is there such a method/routine?
I have an auditing class that defines some sqlComputed properties and can be extended by other persistent classes to enable auditing of its properties.
I'm curious if it is possible to change the class method to another class?
I call a method of a system class to generate another class. But there is a bug/feature in a library class, so I need to tweak a bit the generated method, e.g. add additional parameter and change the line to "if" the parameter.
I hope to do this programmatically after class generation and change the code in a way I like.
I noticed something interesting in regards to business rule editing. Whenever you use the Management Portal or Studio to edit a business rule, the " characters gets escaped to a ".
I need to store an equivalent of the SNN (Social Security number). I need it to be encrypted and I'll have to be able to search for it once stored.
For what I've seen my options are:
- SHAHash from the %system.encryption library. Simple and easy to implement. My question is, might collisions be a problem? We are talking about a 10 millions entry.
- AES encryption. In this case I'd like to know if there is a standard way for key management in the InterSystems environment.
I have a persistent Document class that has a FileName string property and another Question class that has an optional one-to-many relationship with Document.
I'm trying to add a SqlComputed property to the Question class (docFileName) where docFileName = Document.FileName if there is a related Document or an empty string if there isn't one.
I'd prefer the property to be SqlComputed so that if Question.Document changes, Question.docFileName will automatically update.
I'm trying to output a XML file, mapped from a ORU_R01 2.3 HL7 message, with a file name based of fields in the source HL7 message in the following format,
Welcome to day 3 of Virtual Summit 2021! We have incredible content available to you this year and I'd just like to bring your attention to the 4(!) sessions that we have on Embedded Python.
I'm using a snippet I found from Scott Roth to extract, decode, and save a PDF from a HL7 message and save it to a specified file path, but I'm running issues with the following error:
My approach was to a create a utility function accessible from a DTL like this:
If a have a string " Happy new year " and I want to trim (remove blank spaces from the begin and the end, not other places into the string), what is the object script function to get "Happy new year"?
Open Exchange (OEX) is getting more and more popular and more and more developers consider publishing their apps in the public package managerregistry.
This is really great!
So the topic of thoughtful naming convention is getting more important and even critical. Let's discuss?
I'm new to ObjectScript and I've been experimenting the correlate method of %XML.Reader to convert an XML file I've loaded into its corresponding class. But, I have found that I am not getting all the child items of an element in a List contained within the converted class, only the last item.
I programmed some server command by my own. That server commands worked fine for a long time.
Suddonly I received
Studio Action "Attempted Edit" not supported on 127.0.0.1:57772[CTAE01]
by using one of my server commands.
There is an explanation:
Error running command vscode-objectscript.serverCommands.contextOther: Running the contributed command: 'vscode-objectscript.serverCommands.contextOther' failed.. This is likely caused by the extension that contributes vscode-objectscript.serverCommands.contextOther.
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