#Code Snippet

Code snippet is a programming term for a small region of re-usable source code, machine code, or text.

By date

Article

Gevorg Arutiunian · Aug 31, 2018 1m read

This code snippet changes all passwords in a system to a specified string. The two literal strings at the beginning of the snippet can be adjusted to edit the system or password string. The class method "test" runs the code:

#Code Snippet #InterSystems IRIS #ObjectScript #Caché

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Question

Tomer Marinov · Aug 28, 2018

SYNTAX Error With ObjectScript Indirection Usage

Hi,

Does anyone know why the SYNTAX error appears?

#Caché #Code Snippet #ObjectScript

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Article

Gevorg Arutiunian · Aug 22, 2018 1m read

Get all filenames in a specified directory

(Originally posted on Intersystems CODE by @Eduard Lebedyuk, 10/12/15) The following code snippet outputs all filenames in the file path "dir" in the Cache/IRIS terminal. The class method "test" runs the code:


Class eduardlebedyuk.filenamesInDir Extends %RegisteredObject
{
	classmethod test() {
		// replace dir with file path you want
		set dir = "D:\directory" 
		set dir = ##class(%File).NormalizeDirectory(dir)
		set file=$ZSEARCH(dir_"*")
		while file'="" {
			write !,file
			set file=$ZSEARCH("")
		}
	}
}

#Code Snippet #InterSystems IRIS #ObjectScript #Caché

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Question

Jack Huser · Aug 22, 2018

Best way to initialize several variables

Hello Everyone,

I was wondering about the best way to initialize several variables, or several lists of variables.

Would it be better to write it like:

set (var1, var2, var3) = "value1"
set (var4, var5) = "value2"
set (var6,var7,var8) = "value3"

set var1="value1", var2="value1", var3="value1", var4="value2", var5="value2", var6="value3", var7="value3", var8="value3"

#Code Snippet #Object Data Model #ObjectScript #Caché

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Article

Gevorg Arutiunian · Aug 16, 2018 2m read

Routine to Parse Options in Args Array

(Originally posted by Timur Safin on Intersystems CODE, 3/2/15) This code snippet is a routine that parses options saved in an arguments array. The subroutine "test" runs the code:

#Code Snippet #InterSystems IRIS #ObjectScript #Caché

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Article

Benjamin Thorne · Aug 7, 2018 1m read

Validate Email Address with non-English characters

The following code snippet is a REGEX that validates characters that are not in English, as well as English characters. The class method "test" takes an email address and validates it based on this additional criteria:

#Code Snippet #InterSystems IRIS #ObjectScript #Tips & Tricks #Caché

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Article

Benjamin Thorne · Aug 1, 2018 1m read

Find diff between two ObjectScript lists

(Originally posted by @Eduard Lebedyuk on Intersystems CODE, 6/26/14) This code snippet determines the difference between two ObjectScript lists. The class method "test" runs the code, and its parameters are detailed in the comments:

#Code Snippet #InterSystems IRIS #ObjectScript #Caché

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Article

Benjamin Thorne · Jul 24, 2018 1m read

Check audit settings programmatically

The following code allows a user to view the audit settings of their instance. Run the code by running the class method "test":

#Code Snippet #InterSystems IRIS #ObjectScript #Caché

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1 612

Article

Benjamin Thorne · Jul 17, 2018 1m read

Use GZIP to compress/decompress files

The following code snippet uses GZIP to compress/decompress a file. Choose a file by specifying a file path in the "filename" variable.

#Caché #Code Snippet #InterSystems IRIS #ObjectScript

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1 2K

Question

Evgeny Shvarov · Jun 5, 2018

$CASE For Long Stories

Hi, Community!

$CASE is a fine syntax sugar for "Ifs" with one-line/one-word expressions, like in docs:

SET daynum=$ZDATE($HOROLOG,10)
  WRITE $CASE(daynum,
              1:"Monday",2:"Tuesday",3:"Wednesday",
              4:"Thursday",5:"Friday",
              6:"Saturday",0:"Sunday",:"entry error")

But if my expression for a current case is a multi-line business logic? Can I use "{}" somehow or better go with "IF" instead?

#Code Snippet #ObjectScript #Caché

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1 510

Question

Justin Wilson · May 9, 2018

Standardizing Error Logging

I have been tasked with creating a class that will handle error logging in a consistent manor for an application I am working on. The need is to have all variables in the calling method logged along with some other information.

The example given was zwrite which is exactly what I need, however, I somehow need to capture the output of ZW and put it into a database table. Any easy way to capture this data? I was able to dump ZW to a file, but that is not ideal.

Any help is appreciated!

#Code Snippet #Caché

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Article

Ben Spead · Apr 25, 2018 6m read

Managing Many Environments and Protecting Production

NOTE: This content was originally presented at the InterSystems Global Summit in 2014, however related topics often come up on the Developer Community so I have decided to turn this into an article for easier reference and discussion. However, much of the content was pulled directly from the presentation slides so the article format resembles that of a PPT deck more than paragraphs.

#Caché #Code Snippet #Development Environment #Studio #Tips & Tricks

7 1

3 952

Article

Jose-Tomas Salvador · Apr 25, 2018 2m read

Serialize and Deserialize objects to JSON (or whatever) format

What if you could serialize/deserialize objects in whatever format: JSON, XML, CSV,...; attending different criteria: export/import some properties and not others, transform values in this or that way before exporting/importing,...; and all of this without having to change the class definition? Wouldn't that be great??

Well, perhaps it's a goal too ambitious to reach 100% but, exploring this idea, I've developed a bunch of classes that I thought it was good to share. If you want to test, change, modify or improve the code, or just take a look at it, you can do it here. There you'll find a more detailed explanation (see Readme.md)

Be aware, this is a proof of concept for myself done in spare times, sure it's not robust enough or it can be done much better... but, I was just playing...ok, I could just wait to the new JSON Adaptor (coming soon!) that sure is going to resolve much more scenarios in a cleaner way, but... meanwhile... :-) ...

#Code Snippet #JSON #Mapping #Object Data Model #REST API #Caché

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Article

PILAR GUERRERO · Apr 25, 2018 4m read

DNI functions

Hi everyone!

I want to share four functions with you. I hope that you can use it at some time.

DNI: the initials of the type of national identity document, is composed of different series of numbers and letters. That proves the identity and personal data of the holder, as well as the Spanish nationality. Example: 94494452X

NIE: The NIE or foreigner identity number is a code for foreigners in Spain.

In this page you can generate examples of DNI or NIE https://generadordni.es/

#Code Snippet #Tips & Tricks #Caché

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Discussion

Evgeny Shvarov · Apr 22, 2018

Class vs Routine in ObjectScript. What Do You Use And Why?

Hi, Community!

Have a question for general discussion.

In ObjectScript we have cls for classes and mac code, which both compile into int code.

Is there any reason when you use mac instead of cls for non-persistent classes?

For me the benefits for cls are:

1. Inheritance and other OOP features

2. Auto-documented code

For mac one visible benefit is easier call in terminal:

do method^Utils(p1,p2)

#Code Snippet #ObjectScript #Caché

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Question

Eduard Lebedyuk · Apr 5, 2018

Drawing boxes

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)
####################
##                ##
# #              # #
#  #            #  #
#   #          #   #
#    #        #    #
#     #      #     #
#      #    #      #
#       #  #       #
#        ##        #
#        ##        #
#       #  #       #
#      #    #      #
#     #      #     #
#    #        #    #
#   #          #   #
#  #            #  #
# #              # #
##                ##
####################

#Caché #Code Snippet

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Question

Token Ibragimov · Apr 2, 2018

How to set space in numbers

Hello!

Is it possible in cache to divide numbers with spaces. For example number 12500 divide to 12 500?

Thank you!

#Code Snippet #Object Data Model #Caché

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Article

Kurro Lopez · Feb 21, 2018 1m read

Calculate the age of a person

Hi all,

I've created a method to calculate the age of a person, or the age of a process, contract or other stuff as you want.

#Beginner #Caché #Code Snippet #Tips & Tricks

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Article

Eduard Lebedyuk · Feb 20, 2018 1m read

Determine programmatically if unit tests failed

I needed to know programmatically if last ran failed or not.

After some exploring, here's the code:

ClassMethod isLastTestOk() As %Boolean
{
  set in = ##class(%UnitTest.Result.TestInstance).%OpenId(^UnitTest.Result)
  for i=1:1:in.TestSuites.Count() {
    #dim suite As %UnitTest.Result.TestSuite
    set suite = in.TestSuites.GetAt(i)
    return:suite.Status=0 $$$NO
  }
  quit $$$YES
}

#Beginner #Best Practices #Code Snippet #Testing #Caché

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Question

Scott Roth · Feb 9, 2018

Mix case function

Does anyone have a function they built to change a name from all lower case, or all upper case to mix case?

Thanks

Scott Roth

#Code Snippet #ObjectScript #Caché

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Article

Titto George · Feb 5, 2018 2m read

Images to PDF using Zen Report

Zen report can create PDF document (https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=GRPT_xslfo_pdf_config ). Store your images in the table. Pass session id to the Zen report. Zen report will select images using SQL. The <img> element will insert images to the report:

#Code Snippet #HealthShare #Tips & Tricks #ZEN #Caché

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Discussion

Evgeny Shvarov · Jan 24, 2018

For and If with one line: to brace or not to brace

Hi Community!

Coding guidelines discussion. Consider you have For with one command in the cycle. Here are the options:

One

For i=1:1:1000 set ^Test(i)=""

Two

For i=1:1:1000 {
 set ^Test(i)=""
}

Same for the "If":

if a set b=a

if a {
 set b=a
}

Your choice? Or maybe even other options?

#Code Snippet #Coding Guidelines #ObjectScript #Caché #InterSystems IRIS

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Announcement

Evgeny Shvarov · Dec 11, 2017

Developer Community GitHub

Hi, Community!

I'm pleased to share that we have a dedicated InterSystems Developer Community GitHub - github.com/intersystems-community!

#Code Snippet #Coding Guidelines #Git #GitHub #Developer Community Official

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Question

Evgeny Shvarov · Nov 30, 2017

How to Map Class Package to a Namespace Programmatically

Hi folks!

Is there a one line command to map class package A to Namespace ASPACE?

#Code Snippet #Namespace #ObjectScript #Mapping #Caché

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Article

Danny Wijnschenk · Nov 25, 2017 4m read

Final Advent of Code 2016 Day25: Clock Signal

This is (the end) of a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-ta...

This is the 25th and last challenge of the 2016 series of Advent of Code.

#Caché #Code Snippet #Contest #ObjectScript

2 1

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Article

Danny Wijnschenk · Nov 24, 2017 11m read

Advent of Code 2016 Day24: Air Duct Spelunking

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-ta...

#Caché #Code Snippet #Contest #ObjectScript

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Article

Danny Wijnschenk · Nov 23, 2017 4m read

Advent of Code 2016 Day23: Safe Cracking

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-ta...

Remember the assembunny language we had to code on day 12 (https://community.intersystems.com/post/advent-code-2016-day12-leonardos...)?

#Caché #Code Snippet #Contest #ObjectScript

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Article

Alexey Maslov · Nov 23, 2017 12m read

Where is my global stored?

It's well-known that namespace global mapping helps us to write code independent on database storage details (Caché instance name, directory path). But sometimes we can face problems accessing an unsubscripted global which has subscript level mapping (SLM) defined. Most of such cases are evident and associated with administrative tasks that should be done on database level, but some of them can confuse even an experienced developer. Just to start:

#Caché #Code Snippet #Globals #Mapping

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Article

Danny Wijnschenk · Nov 22, 2017 5m read

Advent of Code 2016 Day22: Grid Computing

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-ta...

#Caché #Code Snippet #Contest #ObjectScript

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Article