Caché

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Just got the new beta version of Docker, with depreciation warning of AUFS. It's so bad news when InterSystems does not support used by default storage driver overlay2. Recently I thought to play with Google Kubernetes Engine, and realized that I can't work with InterSystems products there due to incompatibility with Storage Driver. Maybe it's already time to think about support?

Last answer 25 July 2018 Last comment 20 November 2018
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I am trying to find documentation on how Cache Studio locks a Routine/Class a developer is editing.

On the flip side, I am looking for documentation on how Atelier does the same.

Ultimately I am looking for the differences and what happens if both Studio and Atelier through different developers go after the same Routine/Class.

I am not asking for an answer (however that would be nice), I am looking for pointers to documentation.

Last answer 6 November 2017 Last comment 29 November 2017
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IRIS offers Durable %SYS Directory as a highly useful feature for working with containers.

Before inventing the wheel once more I'd like to know if a similar feature also exists for Caché / Ensemble.
Official documentation is quite silent about.
Though I have some names in mind that might know more about   ( @Luca Ravazzolo @Dmitriy Maslennikov  ?     @Eduard Lebedyuk ?  )

Last answer 12 September 2019 Last comment 12 September 2019
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Just curious how many companies use in their work Docker containers, I mean not only with InterSystems products. And if such companies exist, which of them uses docker and doesn't  use it for InterSystems products  by some reasons. What are the reasons? For companies which already uses InterSystems in containers, how do you use it? Development environment, testing or even in production ?

And if you don't use but thought about it, what are the reasons which stop you.

As for me, I've been using InterSystems Caché inside a Docker container in some different cases:

Last answer 24 November 2016 Last comment 24 November 2016
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I'm creating a new namespace by the installation manifest XML and in the "database" tag configuration I don't see attribute to configure if I what jounal globals or not to this database.

In the database wizard of the "portal administration", have this option.

Regards,

Lucas Boeing Scarduelli

Last answer 21 June 2018 Last comment 29 June 2018
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Hello All,

I have a question / issue regarding the calling list.FindOref(<object from indexOpen call>)
Here is a simple way to reproduce the issue: 
2 classes: Utility.contacttypes and Utility.person
*************************

Class Utility.contacttypes Extends %Persistent
{
Property description As %Library.String(TRUNCATE = 1);
/// Index for property description
Index descriptionIndex On description [ Unique ];
}

*************************

Last answer 12 May 2017 Last comment 12 May 2017
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Due to a new project I'm getting involved inside %Installer stuff deeper than ever I'd be happy to. Most of it was pretty easy to get, thanks to documentation, articles and SAMPLES example, while I can't dig good solution for one problem.

Last answer 28 March 2017 Last comment 28 March 2017
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Currently, when we want to write data to a file that will be viewed in Excel, we parse the data in tab deliminated format to the file and name it with .xls at the end.  That is sent to end users via email.  They get a warning that the data is not formatted properly (it's not really an Excel file after all) but it does display somewhat correctly as the tabs are understood (this does not work if we deliminated with commas however).

Last answer 1 May 2019 Last comment 4 June 2019
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I would like to write some code to parse a set of HTML pages from the internet in order to gather information from each web page.

All of the web pages are generated using a template, so the format of each of the web-pages is consistent with one-another and the information that I want to gather is always located in the same logical place within the page.

What is the best way to parse an html page in order to gather information at a specific place?

Can XML XPATH be used here?  Does anyone have any examples of parsing HTML content?

 

Last answer 1 June 2016 Last comment 15 December 2017
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Hi, Community!

How do you store the source files of your Caché project? What is the directories structure? What are the benefits?

I prefer the following structure:

/cls/package/subpackage/class.cls

/mac/package/routine.mac

/int/package/routine.int

/inc/macro.inc

/dfi/folder/sample.pivot.dfi

Example

Benefits: 

  • folders are packages.
  • easy to understand what type of sources are in the project.

What is your approach?

Last answer 21 June 2017 Last comment 20 June 2017
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Hello, Community!

Here's an interesting task I found on the Internet.

Problem description

Write a method that would draw a box of a specified size.

The goal is to write the shortest method.

Here's a method signature (it can't be modified):

ClassMethod main(s As %Integer = 10)

And call sample:

>do ##class(ITPlanet.Task4).main(5)
#####
## ##
# # #
## ##
#####

>do ##class(ITPlanet.Task4).main(10)
##########
##      ##
# #    # #
#  #  #  #
#   ##   #
#   ##   #
#  #  #  #
# #    # #
##      ##
##########
 
>do ##class(ITPlanet.Task4).main(20)
####################
##                ##
# #              # #
#  #            #  #
#   #          #   #
#    #        #    #
#     #      #     #
#      #    #      #
#       #  #       #
#        ##        #
#        ##        #
#       #  #       #
#      #    #      #
#     #      #     #
#    #        #    #
#   #          #   #
#  #            #  #
# #              # #
##                ##
####################

Last answer 11 April 2018 Last comment 11 April 2018
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I am still working on a generic task where I need to apply journal file records to another database. Initially I didn't want to use Journal.Restore class methods as I need to perform some data transformation, and it seemed that the clearest way to achieve it was to read journal file record by record using %SYS.Journal.Record API. 

Last answer 16 June 2018 Last comment 28 August 2019
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hi,

i have two where-clauses:

a)  ... WHERE company=1 and product=7

b)  ... WHERE product=7 and company=1 

with other words the position of the where fields are swapped.

now the question is:

bring the where clauses a) and b) the same performance(queryplan) or do i have to write it in a special order???

in my point of view, there is a  parser/optimizer who cares about this, so i don't have to care about. 

Last answer 6 September 2019
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Hello,

I have a very simple web service that I'd like to secure via SAML Authorization with X.509 Certificates. I am, however struggling with documentation and my lack of cryptographic skills. (I do this just for educational purposes now, but need to use it in the future)

Does anyone have an example that shows how to construct a SOAP Client with adding all necessary security headers manually or point me to a decent learning resource?

 

Thank you very much!

Last answer 9 May 2019
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I have a list

set list=$lb(1,$c(0),2)

How do I replace $c(0) with an empty element?

My list should look like this:

set list=$lb(1,,2)

I tried using $list but it either replaces the element with an empty string:

set $list(list,2)=""
zw list

Resulting in:

list=$lb(1,"",2)

Or removes the element altogether:

set $list(list,2,2)=""
zw list

Resulting in:

list=$lb(1,2)
Last answer 29 August 2018 Last comment 29 August 2018
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Hi all, 

I am trying to create a method to count the number of entries in a global, including all subscripts. I am having a bit of trouble getting the code to make it to the second subscript. When I get to the position where my key is "Canada" and I add a comma and empty quotes to it, it returns USA as the new key when I do the order function. Is the $Order or the global not able to use a single string to represent multiple subscripts?

 

Here is my global structure:

Last answer 26 August 2019 Last comment 6 September 2019
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