#Caché

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

Documentation.

Article
· Apr 1, 2019 3m read
Closures in ObjectScript

After many sleepless nights it's a pleasure to announce the newer, better, moderner ObjectScript compiler which implemented pretty much everything you ever wanted to have in modern ObjectScript:

  • Design objective of this new compiler is to parse reasonable subset of current ObjectScript syntax which will look readable for stranger, and not scare them with 1 letter syntax. The good start for compiler was the old-good COS Guidelines from here https://github.com/intersystems-ru/cos-guidelines
  • For reasons we mentioned above we do not parse 1 letter syntax. It's declared evil;
  • We do not handle dotted syntax for the same reason - modern syntax with {} is proper replacement for dotted syntax blocks;

But we not only parse the modern ObjectScript syntax, we have implemented finally the long-standing request which we always dreamed about. Closures!

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Question
· Apr 9, 2019
SOAP Request Header

I have a wdsl soap request that now requires a header. Where do I modify the header to allow this new value to be sent?

   <soapenv:Header>
    <Headers xmlns="urn:epic-com.2013.Interconnect.Headers"> 
      <Epic-Client-ID>12349fe5-2ff8-4b79-b723-e69efbabcdef</Epic-Client-ID>
    </Headers>
   </soapenv:Header>

Thanks

Scott

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Hello everyone,

I'm trying to migrate the IDE for programming in COS, we normally use the Studio, but we want to use a more modern IDE. Our team has knowledge with Visual Studio plataform, but we couldn't configurate the compiler and terminal, I installed the extension InterSystems ObjectScript and tried to configurate to connect with my local machine, unfortunately the connection don't sucessed.

Someone has material for how i can connect and compile? Some material i saw show how to use the compiler, but not how can i do the configuration.

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Question
· Apr 5, 2019
How to compare time

I am trying to get the time difference between two time stamps one is recorded earlier to the one happening current but the problem is sql expect string while I have the other stored in a variable and if I do the following I get errors any help please

&sql(SELECT {fn TIMESTAMPDIFF(SQL_TSI_HOUR,$ZDT($H,3,1,3),tx)})

please note that tx is a variable holding the time formatted the same way as the one being compared to

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Question
· Apr 5, 2019
REST and CSP Sessions

Hi!

We are using Rest Service with inheritance of %CSP.Rest, and we are having the following problem: when we receive 100 request from single IP adress - this creates 100 CSP sessions and takes 100 user licence for each request for few seconds. What can we do do about this? We've set this parameter:

Parameter UseSession As Integer = 1;

Thank you in advance!

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Hey everyone,

I stumbled across a comment in this post that mentioned that the %SYS.GlobalQuery is a potentially faster alternative to %GSIZE. I tested it out and while I like the %SYS.GlobalQuery I noticed that it has some size discrepancies against a %GSIZE with details. Can anyone tell me which is more accurate for estimating the size of globals?

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On one of our servers, when I am in Mgmt Portal and click the link for Configure / CSP Gateway Management, I get this url:

http://ipaddress.of.server:port/INSTANCENAME/csp/bin/Systems/Module.cxw?CSPSYS=0&CSPSYSreferer=_CSP.Portal.Home.zen

but the page displays a 0, and nothing else. Literally, just a 0. This link works on our other servers, with the same URL. Any idea why?

Thanks,

Laura

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Hello everyone,

i am in process of changing our authentication method, so we can integrate our AD authentication in our programs. At the moment i am using they %SYS.LDAP object, and trying to use the .Bind() method with the user information to authenticate. This seems to work without issues, but here the problems start.

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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:

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Question
· Apr 1, 2019
$ZF(-100) help.

Hello all!

My company has been switching from $zf(-1) to $zf(-100) like many companies have been. I have been doing fine with 1 argument windows commands such as:

set errorfile = "D:\folder\error.txt"
set outputfile = "D:\folder\output.txt"


set options(1) = ""
set options(2) = "D:\ThomasTools\"

w $zf(-100,"/SHELL /STDERR="_errorfile_" /STDOUT="_outputfile, "dir", .options)

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image

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.

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Good afternoon - I am in the process of writing a AngularJS front-end for some CoS functions that my integration team uses for auditing, analyzing and various other purposes. I have re-tooled the functions to return JSON results that AngularJS can then interpret and display. Many kudos to the AngularJS series on this site for giving me a jump start.

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Discussion
· Mar 19, 2019
Rule to validate SQL syntaxis

Hi! We have received a request to create a new rule on CachéQuality to identify when a developer uses double quotes (" ") within any SQL statement.

We have been asked many times about SQL validation rules, and we would like to open a debate to allow everyone discuss what would you like to be checked on a SQL statement.

Current examples are for basic situations:

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Article
· Mar 31, 2019 20m read
How to write the home address right?

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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Hello,

Last weekend we've updated our Caché version to

Versie:Cache for Windows (x86-64) 2018.1.1 (Build 312U)

I'm using Studio to develop. I've been using the built-in debugger and it has been working nicely. But now, since the upgrade, I'm getting this error when trying to debug any routine or class method:

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I want to upload several files using the html tag

< input multiple="multiple" name="BulkFileUpload" type="file">

. The upload.csp page in the SAMPLE namespace only shows how to extract a single file from the MimeData on the %request object. I cannot fathom how to extract multiple files from the MimeData in the %request object in cache. Can some kind soul explain to me how to do that?

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Question
· Mar 28, 2019
Problem starting production

Hope someone can help me, so i was developing a script and during the tests I was using the csession to execute a method. Also i thought i had to stop the instance i was using, so I used the ccontrol stop [instanceName] to stop the instance, but when i restarted the instance i got this error trying to start my production, I have an idea of what's the problem but i don't know how to fix it.

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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

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Hi,

We recently moved our cache instance from windows 2012 to windows 2016 and when i try to now import % routines i'm getting the following error "Unable to obtain a write lock on this routine because either another user has the routine open for editing or you do not have write access to the database the routine is stored in. This item will be skipped."

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Let's say we have a class

AbcRequest extends Ens.Request, PropertiesBaseAbstractClass(has all my properties common to all request)

Prop1

Prop2 and so on

Now in my Business Operation

I want to make a json dynamically from this request.

Yes obviously I can do is

Set requestDefinition = ##class(%Library.CompiledClass).%OpenId("MyCreateRequest")
Set JsonObject = ##class(%DynamicObject).%New()

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Good morning

I'm probably overlooking something very basic, but I'm running on Win2016 with Cache 2016.2 - All the work I am doing is in INT routines, but I'm making some calls to the Host File system using $ZF(-1).

I have a few mapped Network drives that are mapped in Windows, typically these are locations where I want to back up some files.

My process is quite simple:

1. Read data

2. Zip data files using RAR

3. Create folder on Network drive

4. Move RAR files to new network share.

I've tried a few different commands:

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I have an application using examples from the lottery example in samples name space how do I create a dynamically link based on the data displayed to add a record id to the link

the idea is to loop over the records displays fields and link to edit the shown data at the end of the record in a table format

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I've seen a few password change posts, but I wasn't 100% sure it was the same process, so I am asking here. We periodically have to change the passwords for a few Cache user accounts across several servers. Is there a process/script to change these passwords without having to go into the web portal on each server? Thanks so much, and I apologize if this was covered in some of the other articles that I've run across. Just looking for the best method.

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