Hi, Community! 

Please find a new session recording from Global Summit 2017:

Atelier for Web Development

Hi, folks!

Consider I need to perform some logic which should fire because values of object properties has been changed.

Is there ANY reason for using class callbacks %OnBeforeSave or %OnAfterSave instead of Trigger?

I have a couple of new namespaaces/databases that are read-only.  I don't remember changing them to read-only, and although my username has %all (I installed the system), I am unable to change the "Always mount as read-only" property.

What am I missing?

Thanks,

Laura

Hi, Community! 

Please welcome a new session recording from Global Summit 2017:

Application Performance Management

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-t…

The challenge today is about some basic cryptography : you will have to generate data for a one-time pad (OTP) (see https://en.wikipedia.org/wiki/One-time_pad for more info).

You need to generate keys by taking the MD5 of a pre-arranged salt (your puzzle input), and an increasing integer index starting with 0.

Only those keys are valid which have :

- three the same characters in a row

Hi communauty

i work on the Oauth2 authentification patry in my application , i read a lot of documentation , but i don't know exactly what does it mean by Claims values and the method "SetClaimValue", what does it do really?

can anyone explain for me.

Thank's.

"Help me, Obi Wan Kenobi"?

I’ve hit the wall. I’m a one person shop who wants to start developing Cache on a mac using Eclipse/Atelier, after using Studio for the last 5 years. I’ve installed the 1.1 beta plugin, watched 6 or 7 videos from the September conference, tried several times to work through the cheat sheets, only to have connection issues or compilation issues, so at this point, I’m feeling very frustrated. The videos were interesting, but generally didn’t work as tutorials for fundamental programming operations, for me.

I feel comfortable with Objectscript and Zen development in S

the useful content is in the replies
showing the use of $SYSTEM.OBJ.ValidateIndices()

When a class containing a method generator is compiled, the code that implements the method at runtime is written according to the instructions in the method definition. 

Hello guys,
I'm having a problem on a sign-up screen, what happens is that this screen is not reloaded after clicking save, and that's where the problem arises, on that screen it is possible to upload images, but as everything is loaded withsubmit, the record would have to be updated so I had all the information, which does not happen.
With this I'm trying to find a way to get the information from the file loaded in the "file" component to get the data in "% request.MimeData".
The only way I've found it so far has been to reload the whole page, but that's all I do not want to do.
This page has tw

A third party developer has asked for access to the documentation of my classes so he can understand my tables/classes better.

• How do I give access the the documentation of my classes (single namespace)  and secondary, do I need to give  him access to %system. (and others)
• Is it possible to block the likes of ensemble, Iknow, deepSee etc. I don't use those, and I don't want him to waste time (and my money) exploring areas that simply not necessary
• what privilege roles do I need to give him  whilst still maintaing security.

kevin

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-t…

Today, you have to find a path through a maze. To know if a coordinate is a wall or an open space, you will have to do a calculation like this :

x*x + 3*x + 2*x*y + y + y*y
Add the office designer's favorite number (your puzzle input).
Find the binary representation of that sum; count the number of bits that are 1.
  - If the number of bits that are 1 is even, it's an open space.

As many of you, our partners, are more widely using modern UI frameworks to create client front-end, you may have encountered a question, "So how do I secure my data when I just finished developing all new fancy browser based client experience?"

The answer is easy. Use a standard, proven OAuth2 and OpenID!

"OK, but how can I do it? I have never done it before."

No problem, just have a look here, if your client is Angular (not AngularJS) based, there is a demo project available for you to review and get inspired!

The demo presents a simple Angular (and typescript) application with user login and pu

Hi community

i'm working on the validation user method , i found this following  code in the  \HSIE\%SYS\Classes\%OAuth2\Server\Validate.cls  

ClassMethod ValidateUser(username As %String, password As %String, scope As %ArrayOfDataTypes, properties As %OAuth2.Server.Properties, Output sc As %Status) As %Boolean
{
    // Check if user is defined.
    // We use local Cache user list as the shipped default.
    If '##class(Security.Users).Exists(username,.user,.sc) || $$$ISERR(sc) {
        If $$$ISERR(sc),$$$GETERRORCODE(sc)=$$$ERRORCODE($$$UserDoesNotExist) {
            Set sc=$$$O

InterSystems is pleased to announce the availability of the following maintenance releases:

• Caché and Ensemble 2016.2.3
• HealthShare Health Connect v15.021 on core technology 2016.2.3

Caché and Ensemble 2016.2.3 are available on the same platforms as 2016.2.2

The full list of corrections can be found in the release notes.

• The version number of these releases is 2016.2.3.903.0
• For complete platform details, please refer to the 2016.2 Supported Platforms document.

HealthShare Health Connect v15.021 for core technology 2016.2.3.903.0 contains the following HealthShare module:

• Cor

This should be an overview over a subject that pops up over several places in online documentation mostly as remarks and never as dedicated chapter.

Once upon a time ...  No it's not a fairy tale.
In the beginning of Caché (and before) you had your partition to run your code. Part of that partition was a space with all your local variables nicely sorted by %,A,..Z,a,...z

And whatever values or information you had to store locally was there and visible and available to any piece of code running  in your partition. No problem if you are team of developers working well together with complete doc

I am trying to make Caché perform certain actions depending on whether a particular property of the object was changed using triggers.

For example, say I have this class:

Class Dummy.Class Extends %Persistent {

Property Name As %String;
Property Visible As %Boolean;

Trigger OnUpdate [ Event = UPDATE/DELETE, Time = BEFORE ] {
    if ({Published*O} = 0) && ({Published*N} = 1) {
        do ..CertainAction({ID})
    }
}

ClassMethod %OnBeforeSave(insert As %Boolean) As %Status [ Private, ServerOnly = 1 ] {
    // ... ?
}

ClassMethod CertainAction(objId) {
    set ^test = "Object

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-t…

Today, you need to make a compiler for the language assembunny.
Luckily, this language has only 4 instructions :

cpy x y copies x (either an integer or the value of a register) into register y.
inc x increases the value of register x by one.
dec x decreases the value of register x by one.
jnz x y jumps to an instruction y away (positive means forward; negative means backward), but 

Hi, Community!

We introduced new tags for the posts:

Terminal and OAuth2.

See the full list of tags.

Leave your requests for other new tags to introduce.

Does anyone know where to find a cache.node that works with Cache version 2016.1.1.108.0? I am currently getting  this:

Error: Unable to load shared library C:\InterSystems\TryCache\bin\cache.node''

I am using Windows 7 Pro + SP1.

Thanks!

I would like to remove all the active locks and roll back all the on-going transactions.

Is there any COS command I could use?

By the way, any command I could see the current on-going locks and transactions?

Thanks.

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-t…

The challenge today is about microchips and generators. A microchip belongs to one particular generator, and the two can be on the same floor, or in the same elevator. But if a microchip is with another generator on the same floor or elevator, it will get toasted, except if his own generator is also on the same floor/elevator.
The elevator has only room for two items (can be mix of microchi

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-t…

In today's challenge, you have to execute instructions that control how bots are handling microchips.

The input contain instructions that can be something like this :

value 5 goes to bot 2
bot 2 gives low to bot 1 and high to bot 0
value 3 goes to bot 1
bot 1 gives low to output 1 and high to bot 0
bot 0 gives low to output 2 and high to output 0
value 2 goes to bot 2

Initia

Using the CSP Page Statistics

Application Performance Management

Introduction

A key part of Application Performance Management (APM) is recording the activity and performance of user activity. For many web applications the closest you can get to this is to record the CSP pages or CSP based services being dispatched.

If the pages or service names are meaningful and they indicate the business activity being performed the CSP page statistics can be very useful in building up a historical record of activity, performance and resource usage. This allows you to recognize trends in activity for planning p

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-t…

Today's challenge is about decompressing input that is compressed in an experimental format.
In the format, markers indicate how much time a number of characters need to be repeated.

For example :

A(1x5)BC repeats only the B a total of 5 times, becoming ABBBBBC for a decompressed length of 7.
(3x3)XYZ becomes XYZXYZXYZ for a decompressed length of 9.
A(2x2)BCD(2x2)EFG doubles the BC a

I have a Cache-compatible sql script file and each query is separate by white space.

How could I ask Cache to execute all the queries in this file and dump the result to a specified file?

Thanks.

I have Ensemble/Healthshare running in a production environment which is setup with a mirror failover and an arbiter sitting between them.

In the event of a failover we have a number of connections that need stopping/monitoring and starting in a certain order.

Is there a programmatic way we can detect the failover and stop certain services and operations immediately and then start them up again in the required order, checking their connection state before starting the next connection.

I am thinking Ens.Director is probably what I need however I need some guidance on how to implement a solution.

Hello, I'm looking for books on Caché / Ensemble.

I'm new and would like to learn more about native functions.

Thank you

Hello All,

what is the best method for search a portion of text in a non-indexed global?

I need to implement an autocomplete kind of search, in a global of >1M registers (text type, not $lb)

Maybe the best way would be use a SQL mapped class, with 'Bitmap' indexes?

Thanks in advance!

Hello,

Sorry for my epic english :(

I have a strange issue.

I have generated an encryption key with the tool (UI.Portal.EncryptionCreate.zen).

Then  I activate my key for data encryption (UI.Portal.EncryptionManaged) and encryption work fine.

But when I reboot my server the key is removed from the data encryption key list (UI.Portal.EncryptionManaged) and I have to re-activate the key.

Perhaps somebody have an idee ?

Cache version : Cache for Windows (x86-64) 2016.2.2 (Build 853U)

Windows: Windows Server 2012 R2 Standard

Thanks

Sébastien