#Data Model

Good morning,

First of all thanks for your help and time.

We find ourselves at a crossroads in our development journey, and we're reaching out to the community for insights and guidance regarding a critical aspect of our data management strategy.

Our current challenge revolves around the persistence of data in Globals, specifically when it comes to purging. The issue at hand is that, despite purging, data stored in Globals under the current %Persistent classes remains intact. To address this, we are contemplating a shift from %Persistent to %SerialObject for each relevant class.

Hello Community,

I have couple of question about the DynamicSQL.

1. The %ObjectSelectMode is working perfectly in the DynamicSQL for the object property in direct query. However this is not supported for class query. Is there any way to resolve this / Get the object value for class query result.

2. What is the reason behind for a stored query prepared using %PrepareClassQuery() you must use the %Get("fieldname") method.

Class Samples.DB.NewClass1 Extends %Persistent
{
Property Address As NewClass3;
ClassMethod TestQuery()
{ 
	set statement = ##class(%SQL.Statement).%New()
	set statement.

Hi

Is there a way to read JSON and transform it (in DTL) by using a VDOC of this JSON (without transform it to internal message) like I can do with HL7 or XML?

If it possible, I guess that I should have a schema of the JSON so the second question is how to build a schema for JSON and load it to the IRIS?

Thanks, Ori.

i'm trying to extend both the MemberEnrollment and the MedicalClaim objects in HS.  The CareProvider is perfect for some of my extensions (Operating provider, referring provider, third-party insurer), but the documentation says https://docs.intersystems.com/irisforhealthlatest/csp/docbook/DocBook.U…:

I need something that is just like a CareProvider, and I will be using the CarePRoviderType as a CodeTableDetail.  

Why is CareProvider excluded?  Does this mean I can't add property HS.Local.SDA3.MemberEnrollment.PHPProvider as HS.SDA3.CodeTableDetail.

Hi 

we are implementing HIE and wan to get expert opinion on facility registry setup. Below are some example and which method we should adapt.

I have an application with maps that render and edit geographic data in a some layers using KML - geo data represented into XML file with layers, polygnons, points and metadata associated with it. Some maps are in GeoJSON too. 

Is it DocDB the better option?

Hi,

I'm trying (and not succeeding) to build an index based on a collection property combined with a property, like:

Index Test On (Property, ListProperty(ELEMENTS).Property2)

For example, I have a class with this properties:
Property Simple As %String;
Property ListOfProp As List Of AnotherObject;

The, I try to create a simple index of one of the AnotherObject properties and I can compile and it creates the right index:
Index Test On (ListOfProp(ELEMENTS).Name);

But when I add a "normal" property, compiler miserably fails:
Index Test On (Simple, ListOfProp(ELEMENTS).

What is the best free/open source option to generate the database diagram (MER) to the iris or cache persistent classes?

Hi,

I have two namespaces

1. In the first one, I have defined a class which Extends (%Persistent, Ens.Util.MessageBodyMethods), we'll call it NSOne.Msg.Req
2. In the second namespace NSTwo, I want to use the previous class with something like SET pInput = ##class(NSOne.Msg.Req).%New()

I mapped the NSOne.Msg.Req package in namespace NSOne. In Atelier, I can see NSOne.Msg.Req in my NSOne. But, when I try to execute line 2 above, it tells me :

{
    "status": {
        "errors": [
            {
                "error": "ERROR #5002: ObjectScript error: <PROTECT>^NStwo.Api.

Hi All, I am a Data Architect and am trying a method of deploying alter statements onto Cache DB.

My Data Modeling tool generates alters as this.. So question is if the Cache has a way to rename table? If so what is it?

ALTER TABLE <SchemaName>.GROUP_TYPE_NODES RENAME TO GROUP_TYPE_10082019140110000
;

This is giving error.

SQL Error [25] [37000]: [SQLCODE: <-25>:<Input encountered after end of query>]
[Location: <Prepare>]
[%msg: < Input (IDENTIFIER) encountered after end of query^ALTER TABLE xxx.GROUP_TYPE_NODES RENAME>]
 

Hi all

Is there a data model for the Ensemble EnsLib_HL7 tables in the database? A client wants to run some SQL and would like some documentation about table relationships.

Thanks in advance

Ian

Hi guys!

As you know there are two (at least) ways to get the stored value of the property of InterSystems IRIS class if you know the ID of an instance (or a record).

1. Get it by as a property of an instance with "Object access":

ClassMethod GetPropertyForID(stId As %Integer) As %String

{

set obj=..%OpenId(stId)

return obj.StringData

}

2. Get it as a value of a column of the record with "SQL access":

Dear Colleagues and Friends,

is there any indication that the .NET object representation of Cache objects (i.e. InterSystems.Data.CacheClient.dll) complies with .NET Standard? I'm planning to extend our existing .NET client/server solution with a mobile option by Xamarin Forms and can't find any significant hints in the internet.

I'm just fooling around a bit and made some expreiments with a REST API and a generic object-to-JSON tier:

ClassMethod ObjectFromObject(o As %RegisteredObject, class As %String = "", package As %String = "") As %DynamicObject
{
i class = "" s class = o.

First time post, also a new Cache developer, hence the <Beginner> tag.

If our data has Predefined terms in a dictionary, and a user can add terms on their own, can the terms exist in different tables?

Lets call the tables "Terms" and the user data in "UserTerms".

If a third class definition has a property of "Term" can it not be either Terms or UserTerms?

I'm leaning towards using a Subclass strategy where the pseudo "Parent" (forgive me) is  Dictionary.Term and the child is along the lines of Dictionary.Term.User

Dictionary.Term.User can inherit from Dictionary.

Just wondering an Insight in the difference between these two indexes

IdKey / PrimaryKey
================= 

Property Identifier As %Integer

Index Index1 on Identifier [Idkey]

Index Index2 on Identifier [PrimaryKey]

What's the difference?

1. If I don't have Index1 and only have Index2,  then cache does still make its own id.
So how and why  do I ever use the PrimaryKey.  In Joins ??

Table1.Identifier = Table2.Identifier instead of Table1.Id = Table2.id ??
But I can still use Table1.Id = Table2.Id as cache still made one ID field

So where is PrimaryKey useful in cache?

Hi

Just curious to know about the pros and cons of Parent/Child Vs One/Many.

We do use a bit of both. 
One big reason we use Parent child is we feel if we delete one global, it gets rid of all child data too and all parent child data is stored in one global. Much easier to manage.

Let's say I have a property as a variable value:

set propName="Country"

Is there a method to determine, should I quote it to access the object, so would the correct code be:

write obj."Country"

or just simple

write obj.Country

is enough?

Hi,

I would like to know if anyone has had some experience in building systems for multiple end-users. 

To keep things simple, in a hypothetical example, say an Event Booking System, where a Venue could sign up to use such a system and define it's Venue, costs, calendars, etc.. and then invite their customers to book the Venue on different days/times. 

If I wish to offer such a system to many

What would a sample DbContext look like and how would you register the DbContext in the Startup.cs  ConfigureServices method?

We have a case where a vendor can send us more information in the DICOM message rather than in the HL7 result message. In theory it should be possible to take a DICOM and convert it to HL7, stupid question is has anyone done it before? Does anyone have any good examples of a DTL they did to show me how to setup the message structures and translation?

Thanks

Scott Roth

The Ohio State University Wexner Medical Center

Scott.Roth@osumc.edu

Hi, Community!

Suppose I have class A with properties P1 and P2.

I want to introduce class B, which would have same records as Class A, but only  one property - P2.

What is the easiest  way to manage it assuming that I would like to use Class A to add records and be available for any operations to Users with Role A.

And I would like to introduce class B for Users with role B for read-only access.  Preferably they shouldn't even be aware of Class A and P1 existence .

What is the easiest way to introduce it and manage it?

Use some proxy-classes?  Property-level security?

Is the InterSystems Cache has SQL or Non-SQL concept?

Hi

I have an Ensemble Application with many classes and relationships between those classes.

I need a tool that can connect to Cache/Ensemble and create a visual ERD from the class definitions within a particular Cache Namespace

MS-Access is one option but it does not automatically create the relationship connectors between classes

Any suggestions

Nigel Salm

I have been following the online Zen Quickstart Tutorial using the lastest release documentation. In addition to playing around with the styling and making a few minor functionality tweaks, I wanted to add an additional column that shows a count of the number of phone numbers for that Contact (as shown in the image below).

The idea here is that you can see what contacts have phone numbers without having to click on the "view phones" link. All I have done here is add a blank additional column to the %ZEN.Component.tablePane object

Does anybody know how can I get the DocumentId property from a DocDM repository using SQL?. So far my SQL is like this:

SELECT name,email,gender FROM JSON_TABLE(
  'person',
  '$' COLUMNS(
    name VARCHAR(100) PATH '$.name',
    email VARCHAR(100) PATH '$.email',
    gender VARCHAR(2) PATH '$.gender'
  )
) 

Thanks!

I've been building up a REST services API, consisting of a dozen or so classes referenced from a Dispatch class, which has route mappings for the first piece of the URI.  I'd like to have the Dispatch class be able to output all of the available Services, with some documentation.  Is there something like a %Library resource that I could use to pull this information from each of the classes?

Thanks

Chris