#Caché

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

Documentation.

Question
· Jul 4, 2018
$ZF(-100,..) issues

Hi, I found some issues with $ZF(-100) whilst replacing our old $ZF(-1) calls following the security alert. They're easy enough to work around, just figured it might be useful to someone :)

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Article
· Mar 18, 2018 1m read
Replacing ZEN - Index to articles

Hi All
This is the index to a series of articles I hope to create over the coming months.

ZEN and ZEN Mojo are no longer being actively developed by Intesystems - this is a great shame as it is a fine product that works so well for business applications.
However ZEN is a 15 year old product and I need a path forward to replace the ZEN UI with a supported development framework.

This article is an index of the other articles I have, or plan to write. - the articles will be subject to change as I develop my thoughts and climb the learning curve.

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Hi Guys,

I would to know, I have a drop down list items in my applications. While, am clicking on the drop down bx, there are few numbers of listed items, while am doing mouse over action, I should display the entire text of selected item from that drop down list box, even am not selecting that item. I would like to know about the what is exact text it contains in Zen framework.

If any lead would be appreciated.

Thank you in advance.

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Is there an API that would list classes within a given package? I can't find any. I do have a workaround that uses class index, but this query lists all classes available in the namespace and I have to filter those I want. But this is just unnecessary overhead.

If anyone has spotted such API, please let me know.

TIA!

Dan

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Let's say I have this simple script file try.script

write 1
write 0

I can execute it in a terminal (csession) by calling:

csession cache < try.script

And I get the following output:

%SYS>
1
%SYS>
0

However I want to use a try catch block in my script:

try {
write 1/0
catch {}
halt

But as script is executed line by line, it's interpreted like this:

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I bet that not everyone familiar with InterSystems Caché knows about Studio extensions for working with the source code. You can actually use the Studio to create your own type of source code, compile it into interpretable (INT) and object code, and sometimes even add code completion support. That is, theoretically, you can make the Studio support any programming language that will be executed by the DBMS just as well as Caché ObjectScript. In this article, I will give you a simple example of writing programs in Caché Studio using a language that resembles JavaScript. If you are interested, please read along.

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I am trying to use the automated unittest class for a %CSP.Rest service.

So my Unittest code set's %request and %response from %CSP.Req/resp respectively

I build a tProxy with the fields I need for the post and set it %ToJson... I have tried seting %request.Content = tProxy (and not)

I call the method for the post url directly...

When that method calls %fromJson to set an object with the info. I passed...

- when I don't set %request.content.. I get a error '5035 - premature end of data code 12'

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I was able to run the Cache terminal from the command prompt with the following command, in the namespace that I provided in the brackets:

cterm /console=cn_ap:ENSEMBLE[TEST_1]

But the command suddenly stopped opening the terminal in the correct namespace. It just opens it in the default namespace. I tried it with different namespaces or invalid namespaces, it always opens the terminal in the default namespace now.

I cannot figure out what is causing this behaviour.

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Hi Community

I have created a simple package that allows the use of Cache with the Laravel Framework.

From my initial testing everything seems to be operating smoothly but I would like to appeal to the PHP users in the community to help me improve this package.

For those of you out there who have time and would be interested in this, please visit the repo at https://github.com/jeandormehl/laracache

Thanks in advance

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Hi, all!
As I know, InterSystems recommends the use of Huge Pages. And if count of Huge Pages is enough, we'll see (in cconsole.log) something like this during Cache startup:

12/29/17-14:40:50:360 (3625) 0 Allocated 4630MB shared memory using Huge Pages: 4096MB global buffers, 256MB routine buffers

But if count of Huge Pages is not enough for location of all Globals and Routines caches, Cache won't use Huge Pages.

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Question
· Jun 21, 2018
COMANDO $ZF

Hello everyone

I have a problem with $ ZF (-1)

I need to delete file from windows folder example c: \ sys \ text.txt, when executing the w $ zf (-1, "c: \ sys \ text.txt") command, the file does not delete.
There is some other cache command that performs this task.

hugs

Davidson

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Article
· Oct 26, 2018 1m read
Send an HTML Email

This code snippet contains the class method "test" which sends an HTML email. Change the literal strings in the method to customize the email's from address, to address, subject, and body:


Class objectscript.sendEmail Extends %RegisteredObject
{
    classmethod test() {
        set m=##class(%Net.MailMessage).%New()
        set m.From="user@company.com"
         
        set m.IsHTML=1
         
        do m.To.Insert("user@company.com")
        set m.Subject="Sent by IRIS mail"
        set m.Charset="iso-8859-1"
        do m.TextData.Write("<HTML><HEAD><TITLE></TITLE>"_$char(13,10))
        do m.TextData.Write("<META http-equiv=Content-Type content=""text/html; charset=iso-8859-2""></HEAD>"_$char(13,10))
        do m.TextData.Write("<BODY><FONT face=Arial size=2>Test <B>Test</B></FONT></BODY></HTML>")
        set s=##class(%Net.SMTP).%New()
        set s.smtpserver="mail.company.com"
        set status=s.Send(m)
    }
}

Here's a link to the code on GitHub

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Hello All,

I hope it's not a silly question.

Here is my issue:
I have 3 simple classes:

Parent class, let's say:

Class ParentClass Extends %RegisteredObject
{
Property a As %String;
}

and two children classes
Class A.Child Extends ParentClass
{
Property b As %String;
}

Class B.Child Extends ParentClass
{
Property c As %String;
}

So no issues - all compiles and seem to work.

But, when I add %XML.Adaptor to my parent class, so:

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Hi,

this is a public announcement for the first release of Intersystems Cache Object-Relational Mapper in Python 3. Project's main repository is located at Github (healiseu/IntersystemsCacheORM).

About the project

CacheORM module is an enhanced OOP porting of Intersystems Cache-Python binding. There are three classes implemented:

The intersys.pythonbind package is a Python C extension that provides Python application with transparent connectivity to the objects stored in the Caché database.

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Can anyone tell me how to discover in ObjectScript the operating system and operating system version that Caché is actually running in? (Not the operating system the build was compiled for.)

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Hi all,

I am new in Cache. I have to update a record with a long text field, for that, I am using ODBC but the issue is that it is returning an error when I execute the ODBC SQL statement because the field contains some commas, colon, double quotes, single quotes, and CR LF characters.

There is a way to escape this chars? I have seen I can save the field when I replace the single quotes with a double single quote (it's -> it''s) but I can not save the information when the field contains double quote chars. What about the other chars?

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I already talked about GraphQL and the ways of using it in this article. Now I am going to tell you about the tasks I was facing and the results that I managed to achieve in the process of implementing GraphQL for InterSystems platforms.

What this article is about

  • Generation of an AST for a GraphQL request and its validation
  • Generation of documentation
  • Generation of a response in the JSON format
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Hi,

Getting below error on newly installed cache version 2017.2. This is running fine on another instance.

Q00QUASAR:TEST1>D $system.OBJ.CompileAll()

Detected 1229 errors during compilation in 145.4s.

Instance name:TEST2>D $system.OBJ.CompileAll()

Detected 202 errors during compilation in 211.7s.

Instance name:TEST3>D $system.OBJ.CompileAll()

Detected 784 errors during compilation in 186.6s.

TEST2>do $System.OBJ.CompilePackage("Calendar")

Compilation started on 02/25/18 17:21:33 with qualifiers ''

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Announcement
· May 21, 2018
How is your code health

As a developer, usually I'm concerned about how my code health is, and how the other coders code can affect to my own work. And I'm quite sure most of us feel very similar.

In our company we use a Static Code Analysis tool to analyze code for different languages to ensure we are writing high quality and easily maintainable code by following a few best practices in terms of code structure and content. And the question was: why should be different for Caché ObjectScript language?

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InterSystems Official
· Jul 18, 2018
Caché and Ensemble 2018.1 Field Test Release

InterSystems is pleased to announce availability of a field test version of Caché and Ensemble 2018.1

These kits can be downloaded from the Field Test portal page.

There are hundreds of bug fixes, and several new features, including:

  • Microsoft Volume Shadow Copy Service (VSS) Integration
  • Support for Microsoft Integrated Windows Authentication for HTTP Connections
  • SSH Enhancements

All platforms are available, except Oracle Solaris 10, 11 for x86-64.

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Traditional Caché Objectscript has the multi-dimensional array as its main form of complex data structure and the $order command as the main means of traversing said data structures. But newer versions of Caché ObjectScript also have data structures that are direct parallels of what languages such as JavaScript provide, in the form of %DynamicObject and %DynamicArray. These have an easy to use iterator feature via the %GetIterator method, and even a handy built-in literal syntax for constructing new objects.

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