#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

I had a challenge recently where I was asked to parse and iterate JSON to find a patient that has a forename = "Bill" and try to make the function that iterates through the code re-usable.

Being working in Healthcare there isn't much experience or demand for parsing JSON, as most of my work is HL7.

I took this on using the documentation and worked out a way to parse the JSON (see posts below for code and source data).

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In my previous article, we reviewed possible use-cases for macros, so let’s now proceed to a more comprehensive example of macros usability. In this article we will design and build a logging system.

Logging system

Logging system is a useful tool for monitoring the work of an application that saves a lot of time during debugging and monitoring. Our system would consist of two parts:

  • Storage class (for log records)
  • Set of macros that automatically add a new record to the log

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Question
Henry Pereira · Mar 12, 2021
Hierarchical Queries

Hi community,

I need to write an SQL query with hierarchical order, I have a table with a column referencing itself, similar as the sample bellow:

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Hi! I have a complex SQL select query which I execute via %ResultSet. It also includes a UNION. The select statement within the union should only be done when an external parameter is set, and I'm not sure of way of doing that within SQL, other than something like

SELECT FOO FROM BAR

WHERE (some conditions)

UNION

SELECT FOO2 FROM BAR2

WHERE :doUnion = 1 AND (some conditions)

...this works, but I don't think it's particularly optimal as I believe it will still execute the second SELECT regardless of :doUnion. It's also sort of hard to read...

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During some consulting activity, I found at the client's site CACHEAUDIT database of more than 100 GB size. The reason was simple: several processes produced a great amount of %System/%System/OSCommand audit records due to frequent external calls ($zf(-100,...)). As it is well-known, those events can be easily disabled systemwide, while this can be hardly considered secure enough. Reducing the number of days before audit cleanup from default 62 to some reasonable figure (e.g. 15) seems to be a better solution, but...

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Hi,

I have to create to a web socket client, but I'm unable to read any data from the server, after flushing the buffer. I have no access to the server, only two examples for the client, one in java and the other one in php:

java example:

socket = new Socket("192.168.0.1", 2003);

DataOutputStream out = new DataOutputStream(socket.getOutputStream());

out.writeUTF("aPassword");

out.writeInt(websiteId);

out.flush();

DataInputStream in = new DataInputStream(socket.getInputStream());

int orderId = in.readInt();

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In previous versions of cache I used to be able to write click on a class and get a delete class option but in this version I can not find the delete class option was wondering if there is another way to delete a class if you wanted to do some house keeping.

N.B. These are the classes I create not the ones that comes with cache.

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Question
Ruslan K · Mar 11, 2021
DisplayToLogical

Is there any reason that property method DisplayToLogical() is not calling before object saving?

I have such situation and do not know how it is possible

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Hi all,

I have a very weird error when I'm calling to a SOAP Webservice as client.

I've create all objects to invoke to this SOAP using the add-in "Assistant SOAP" in Eclipse, it has created all objects (Response, Request, Business operation WS class, etc...).

When I call to this service it retuns the following error message:

ERROR #6243: HTTP request to SOAP WebService returned unexpected CONTENT-TYPE response: text/html.

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We have an interface that need to be disabled then re-enabled when it starts to queue up. I wrote the following code to do this functionality in a process. This works in our development domain, but in production it says it fails to disable the job - it only shuts down the interface without updating the production/starting the interface back up. Error message: "Failed to stop job '36831290' within 60 seconds. Status '<unknown>" 

Is there something wrong with how I'm trying to do this? 

set tSC = ##class(Ens.Director).EnableConfigItem(itemname,0,0) 

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Question
Guilherme Silva · Mar 9, 2021
Working with CSP files

i have a problem with CSP files, i can create a CSP file with termination ".csp" or ".CSP" and this configuration is case sensitive, but a CLS file, this configuration is not case sensitive. there is a way i can change this to the CSP file don't be case sensitive?

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Question
Enzo Toscano · Mar 9, 2021
BinaryStream to file

First of all thank you for your time in reading this question and writing a response,

We would need some help,

What is the best method for save a %CSP.BinaryStream to a file?

Thank you in advance!! 

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I have a quick question regarding swizzled objects.

I have an original object, say Object a, I am working with.

I set a property a.something.somethingother.somethingelse.myNewProperty  to some value x.

Then at some point I am saving a and continuing to work with it.  I assume here by saving a, I saved myNewProperty as well. (as it should work)

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Hi!

I am making a request to an API and JSON is coming as follows:

SET %httprequest = ##class(%Net.HttpRequest).%New()
DO %httprequest.Get(URL)
SET %responseBody = %httprequest.HttpResponse.Data.Read()
 

W %responseBody
{produto:"CHP0001",Local:{IDMV: "000000001",LOTE: "",DtFabric: "null",DtVenc: "null",Atributo06: "0000000002",Atributo07: "",QtdeDisp: "10.00000",QtdeAloc: "0.00000",QtdeSep: "0.00000",QtdeTotal: "10.00000",Status: "OK",Motivo: ""}}

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Article
Robert Cemper · Mar 5, 2021 3m read
Using ECP across IRIS and Caché

Migration from Caché to IRIS can be quite a challenge if your code is grown over many years
and probably not so clean structured as you may like it. So you face the need to check your
migrated code against some reference data. A few samples might not be a problem,
but some hundred GB of data for testing might be.  

A possible step could be to have your fresh code in IRIS but leave your huge datastore on Caché and connect both environments over ECP.  I have created a demo project that gives you the opportunity to try this based on 2 Docker images with IRIS and with Caché connected over ECP.

Open Exchange app
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Article
Hao Wang · Mar 4, 2021 1m read
What is accuracy, accuracy, recall

Accuracy rate is a measure of our prediction results, and it is a measure of how many of the predicted positive samples are actually positive.
The recall rate is for our original sample, and it shows how many positive examples in the sample were correctly predicted.
Accuracy = Predicted correctly/All
If we want to be able to retrieve as much content as possible, this is the pursuit of "recall ratio", namely A/(A+C), the bigger the better.

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I have 2 instances of Cache, one of 2010 and the other 2016.  On both I have created a SSL Configuration with same name.

When I connect to a SOAP Service Client from Cache 2010, I get the above error.

If I connect from Cache 2016, the connection get through.

How can get more details of the error in the Cache 2010 instance to be able to fix this issue.

I have enabled the SOAP Log and it does not give much of details.

Regards

Anil

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Hi Community,

is there a possibility to implement a "remember password" feature in a ZEN Application?

In the management portal I added a web-application for a ZEN application with password authentification. I created an own login page, and now I want to implement a "remember password" feature (User should not have to login again after the session times out or when the browser window is closed).

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