#ObjectScript

I  am reading the following code in ObjectScript:

GitHub repository
 

And there is a sentence which I am facing difficulties to understand:

    kill ^OPNLib.Game.CWLF(..World)

I know that kill removes variables, OPNLib.Game are the package and subpackage, and ..World is a property. However what does CWLF mean?

You could think that it is the class' name, but it is:

Class OPNLib.Game.ConwayLifeGame Extends %Persistent

The class name is ConwayLifeGame

Is CWLF an alias for the class name?

If yes where is it

Hi All,

I am encountered <INVALID OREF> error in one of the components in the namespace as we are processing and generating huge files and sending them to downstream systems. One possible way we tried was to allocate more memory for the namespace in ensemble, but this kind of intermittent error still occurred only if processing the huge files. Also we tried to resend the failed message and the error would be gone. Another possible solution is to kill unused local variables to release memory space.

Hi,

I got the <INVALID OREF> error in the component and the error screenshot as follows:

​​​​​​

When I try to debug in the code, I go to the class and view other code in eclipse and find out the error method. How should I determine which line threw the error according to the error? There is the line number"+8" in zProcessRequest method. Is that the line counted from the method name or below? Looking forward to your reply. Thanks.

%ToJson doesn't work in 2015 release of cache, How to transform a object to json in this release ? 

HI,

I am a newbie so excuse my basic questions.

I have installed Caché on Mac Os High Sierra 10.13.6 and have started the ObjectScript tutorial but I cannot open Terminal in Caché.

The instructions provided on the tutorial don't appear to be for Mac OS as there is no cube icon:

n order to begin practicing using ObjectScript, you need to start the Terminal. Click the Caché cube iconin the task bar and select Terminal from the menu. This brings up the terminal window, and you can see from the prompt that we are in the USER namespace.

Hi Everyone!

New video, recorded by @Stefan Wittmann, is already on InterSystems Developers YouTube:

SQL and Object Access

Hi Developers!

When you prepare your modules for ZPM (InterSystems Package Manager) it expects the certain directory structure for ObjectScript source files.

ObjectScript in your source folder need to be stored by types in the following subfolders. E.g. if you have the source folder named as /src the structure should be as follows:

/src

        /cls - for classes

        /inc - for include files

        /mac - for mac files

        /int - for interpretable files

        /gbl - for globals

And the ObjectScript should be in CLS (a.k.a UDL) and not in XML.

Example.

Ok!

Hi All,

I have a class method, this can be any cache expression to execute (usually a class / method and args) and and args stored in a variable, for example;

set aa = "##Class(Utils.Test).Run(1,2,3)"

do aa

I tried using $classmethod(class,method,args..), by extracting the values but sometimes there can be no arguments, or arguments such as ;

("2019-01-01","1,2,3,4")

which causes issues while running the $classmethod, (i am using $P to extract the Class, Method and args).

Is there any simpler way of doing this?

We have a case where we have 1 message coming in, but then sending two messages out to the same location. Even with FIFO sometimes the messages get out of sequence depending on what is need to be done to the message in the DTL before send. Is it possible to call sleep or Halt or write some kind of a function to put a pause in a routing rule between two sends?

I've created a scheduled task that dumps HL7 messages to flat files. It uses the OutputToLibraryStream() method of EnsLib.HL7.Message. I'd like to be able to run it on a mirror member host whether it's primary or backup.

When run against a database that's mounted read-only, it works fine. However, when I attempt to run it against a mirror backup database, I get the following error:

#5002: Cache error: <PROTECT>%LoadData+7^EnsLib.HL7.Message.1

Tracing that back to the source, I find:

Lock +(^EnsLib.H.

Hi guys!

Was coding today with InterSystems IRIS in a docker container and decided to share with you the commands you may find useful in everyday coding.

# docker-compose build

command to build a container. Remember, it is useful if you have dockerfile in the repo.

if the build is successful call the following to launch it:

# docker-compose up -d

Find IRIS management portal on:

localhost:port/csp/sys/%25CSP.Portal.Home.zen?$NAMESPACE=%25SYS

where the port is what you set in docker-compose.yml - 52775 in this case.

Run the following if you want to launch a terminal session inside IRIS container:

# docker-compose iris iris session iris

gfhj gj 


sdfdsfsdf





USER>

And run the following to shut down the container:

# docker-compose down

Troubleshooting

Is there a system function/method which can create a GUID ?

What's the best way to replace character groups?

I want not to remove character groups as $zstrip does but to replace them with whitespaces.

$translate needs explicit character list.

Effectively I want to remove any characters besides letters, numbers and a small (known) subset of punctuation characters, replacing everything else with whitespaces.

After upgrading I ran a $SYSTEM.OBJ.CompileAllNamespaces("u"). What I got in return was kind of a shock.

In reviewing errors I am seeing code being referenced but no longer applies. It is referring to stuff that might of been defined in the Context , Formal Spec ,Thread , etc.

ERROR #5373: Class 'osuwmc.CPD.DataStructures.TblPharmacyDEA', used by 'osuwmc.CPD.BusinessOperation:SelectProviderTempDEA:FormalSpec', does not exist

ERROR #5373: Class 'osuwmc.FeederPat3BPLTest4', used by 'osuwmc.FeederPat3BPLTest4.Thread1:compileafter', does not exist

ERROR #5373: Class 'osuwmc.DataStructures.MERDABFile.

I am new to cache programming language . I am facing below issue . please assist.

Question: One persistent class ID column is a combination of its properties (Roll No and Marks) [ Exact: RollNo||Marks]. When i am running the query from Management portal it is displaying data in the same format and data is there. But in the code if i am making below statement, i am getting null value.

Set ExistsID=##Class(User.School).%ExistsId(RollNo_"||"_Marks)

set ID=##Class(User.School).%OpenId(RollNo_"||"_Marks)

ExistsID showing 1, but ID is always displaying as Null but data is there in class with that ID.

We have a customer that is not able to accept HL7 result messages that are missing OBX:3.1. I have been trying to create a function that could return a boolean value of 0 if the message didn't meet the expectations of the function.

ClassMethod IsValued(pHL7Msg As EnsLib.HL7.Message, pSegment As %String, pField As %String) As %Boolean
{
            #dim tSeg as EnsLib.HL7.Segment
            
            set tSegCount = pHL7Msg.

Hello,

I had an issue when using the method Exists, I noticed that if you provide a directory for this method it returns 1. This is really misleading, because sometimes the input could be a directory and the only way to predict this is to also test if the file is a directory.

I didn't tested using the Attributes method, but I supposed that this means could also be a solution for that issue. But still, I expected the Exists method to return 1 for files and 0 for directories, since there's also method called DirectoryExists already.

write ##class(%File).

Is there a way that when you run $system.OBJ.Compileall() that you can make the output written to a file instead of the screen? I am trying to capture all the errors so I can review the code and fix them before we upgrade.

Thanks

Scott

To request a copy of the examples only – please see me, will email them out for free.  pmkadow@gmail.com

To request a copy of the examples only – please see me, will email them out for free.  pmkadow@gmail.com

To request a copy of the examples only – please see me, will email them out for free.  pmkadow@gmail.com

OAuth server to be deployed on the IRIS learning cloud platform. Clients - one on the other instance of the learning IRIS server, the other client locally on my computer in the container docker.

Both clients get a seemingly correct link (through ##class(%SYS.OAuth2.Authorization).GetAuthorizationCodeEndpoint()) to the login request form:  

https://52773b-62955584.labs.learning.intersystems.com/oauth2/authorize?response_type=code&client_id=nHCv5A-u_5T1YAwk_tJ7xpi1ky-s2AnRQMaL6YHsUgU&redirect_uri=https%3A//52773b-99792125.labs.learning.intersystems.com/csp/sys/oauth2/OAuth2.Response.

The DeclarativeCOS project is a heartfelt cry about programming in the COS language.

The purpose of the project is to draw attention of the public to improving the inner core of COS.

The idea of the project is the support of a laconic syntax for cycles and collections.

So what is this laconic something that I have come up with? Welcome to the examples below!

Examples

The key concept underlying the project is the declarative approach to writing code. You need to specify WHAT should be used and HOW.

Hello everyone,
After some work with IRIS we want to share our ToolBox-4-Iris with you.

What is this about?

The ToolBox-4-Iris is an API for IRIS with a collection of handy and useful tools - features that are not available in IRIS, but greatly simplify application development. To save time and effort on the "typical tools" that every developer needs. This includes additional classes, individual methods or even more efficient macros, which are described in the respective packages.

Content

Macros
General ObjectScript macros, Status macros, National Language Support macros, and JavaScript macros.

Hi Guys,

    I am new to Cache, I am trying to create an simple REST API on Studio and testing it with postman before that i have config the Web Application System > Security Management > Web Applications > Edit Web Application and i have attached my snapshot also with this post.

   When i testing it on postman i am getting "Service Unavailable" error. I really don't know where i did a mistake. I tried to console it on my code, when I the postman Url is not calling my code,So i think i did a mistake on my config part. Please give me some suggestion

Thanks in advance.

Hello everyone!

hello guys, where could I be learning how to program in COS language? I need help please.

Hi Community!

Sometimes I meet a method which accepts 10+ parameters.

And often I need only the 8th parameter  to  pass. And I call the method something like:

do ##class(Some.Feature).Method(,,,,,,,"flag")

And I don't like this method when I call it like this cause, you know, often I just miss the number of commas and raise some other flag I wanted.

How do you avoid this situations? 

If you meet such a code, how do you call it and sure that you didn't miss the number of ","?

What is a good number of parameters in a method and f you need to pass more parameters in a method what do you do?

I have created below Add method in REST api, I got requested data in objExternalUser object but it is not saved to DB.

Using  "Write objExternalUser.%JSONExport()" I got JSON data.

Please refer below screen.

Hello everyone!

Does anyone know of a library that can be used to create Mock objects for Objectscript classes?

Right now, my team has been building mock objects by hand to help circumvent dependencies when writing and executing unit tests, but I always wondered if someone had ever created a Mock library like Mockito to help quicken the process. 

Thanks!

EDIT: This article has been updated with up-to-date information about the Port project, which now includes a tutorial for basic usage.
The Port project is something that I've introduced more than two years ago but I hadn't enough room to elaborate a tutorial on how to use it till now.

First, the motivation:

I started this project several months  years ago when I noticed that most of the Studio's source control implementations weren't project based but instead namespace based.

The .NET Core Identity model has an IPasswordHasher<> interface for  for 

• Hashing a password so that it can be stored in a database
• Verifying a provided plain-text password matches a previously stored hash. 

I am getting invalid password errors during the login process when the .NET Core Identity model computes a hash from a plain text input and compares it to a password hash value I've returned from Caché. The default hashing algorithm is PBKDF2 with HMAC-SHA256, 128-bit salt, 256-bit subkey, and 10,000 iterations (detailed article on .NET Core Identity PasswordHasher). The algorithm Caché uses is probably different which may be why I am getting errors.