Article Kyle Baxter · Feb 2, 2016 1m read

What do you do if you want to have the ID field have a meaningful name for your application? 

Sometimes it comes to pass that when you're making a new table that you want to have the unique row identifier (a.k.a. IDKEY) to be a field that has a name that is meaningful for your data.  Moreover, sometimes you want to set this value directly.  Caché fully supports this functionality and it works   Suppose you have a class Test.Kyle.  The data will be stored like so:

^Test.Kyle(IDKEY)=$LB("",Field1,Field2,...,Fieldn)

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Article Mark Bolinsky · Feb 2, 2016 1m read

Some third party backup products may by default restore CACHE.DAT files as UNIX sparse files when there are trailing zeroes in the backup file.

The support for sparse files vary from UNIX distribution and file system types.  Sparse files attempt to use file system space more efficiently when blocks allocated to the file are mostly empty similar to thin-provisioned storage.  The file system transparently converts metadata representing empty blocks into "real" blocks filled with zero bytes at runtime. The application is suppose to be unaware of this conversion.

The Problem

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Question Jack Abdo · Feb 2, 2016

Hi,

I created with Studio a persistent class with the following field and index:

Property DescriptionDemande As %String(MAXLEN = "");
Index IDXBASDescriptionDemande On (DescriptionDemande) As %iFind.Index.Basic(INDEXOPTION = 1, LANGUAGE = "fr", LOWER = 1);

INDEXOPTION is set to 1 for activating stemming. I'm indexing french  documents. I have set lower to 1 because I want to do non case sensitive search. 

I inserted a single french word "élément" in the field DescriptionDemande for testing purposes using this query: insert into my_table(DescriptionDemande) values(' élément')

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Announcement Janine Perkins · Feb 2, 2016

Do you need to quickly build a web page to interact with your database? 

Take a look at these two courses to learn how Zen Mojo can help you display collections and make your collections respond to user interactions.

Displaying Collections and Using the Zen Mojo Documentation

Learn the steps for displaying a collection of Caché data on a Zen Mojo page, find crucial information in the Zen Mojo documentation, and find sample code in the Widget Reference. Learn More.

Zen Mojo: Handling Events and Updating Layouts

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Announcement Bill McCormick · Feb 1, 2016

Attached to this post is a PDF document outlining some of the key enhancements included with 2016.2. I will be giving a WebEx session that is open to all tomorrow at 11 AM EST. Once the WebEx is over I will be adding a link to the recording for those who cannot attend.

2016.2 Field Test Launch
Tuesday, February 2, 2016
11:00 am  |  Eastern Standard Time (New York, GMT-05:00)  |  30 mins
 
Meeting number:    747 673 229

Join!

Join by phone
Call-in toll-free number: 1-866-8576852  (US)
Call-in number: 1-636-6925389  (US)

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Question Jack Abdo · Jan 15, 2016

Hi,

I created an iKnow domain, where I supplied dictionaries, blacklist, metadata and stemming. The datasource is a table.

I would like to use iFind semantic search feature. It is said in the documentation that iFind use iKnow semantic analysis. But I want iFind to use the iKnow  domain configuration I created earlier earlier. How can I do that ?

Regards,

Jack Abdo.

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Question Andreas Östlund · Jan 25, 2016

Hi!

Is there any simple way to query data about processed messages in all Ensemble productions?

What I ultimately would like to do is to periodically export that data to another system and run statistics on it.

I've been digging around in the SQL tables view and Ens.MessageHeader seems to contain most of what I'm after.

Using ODBC I could access that table view and query data, but only for one namespace per DSN it seems.

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Article Alexander Koblov · Jan 29, 2016 9m read

The object and relational data models of the Caché database support three types of indexes, which are standard, bitmap, and bitslice. In addition to these three native types, developers can declare their own custom types of indexes and use them in any classes since version 2013.1. For example, iFind text indexes use that mechanism.

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Question Benjamin De Boe · Jan 28, 2016

Is there a possibility to map a CSP page residing in namespace ABC to a namespace XYZ so you could access it as if executing from XYZ: http://localhost:57772/csp/xyz/MyPage.csp ? Some odd cocktail of web application and package mappings that could make this happen?

The idea is to keep the CSP page in sort of a read-only namespace that only contains code, with the data residing in another namespace. This works for zen pages, but not for CSP.

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Article Stefan Wittmann · Jan 29, 2016 1m read

Oracle plans to deprecate the much-maligned Java browser plugin in JDK 9. For years, the bundled plugin put users at risk with its numerous security flaws. The web is clearly moving to a plugin-free state, which is a good direction.

If you are relying on the Java browser plugin, you should take a look at Java Web Start.

Here is the official blog post by Oracle:

https://blogs.oracle.com/java-platform-group/entry/moving_to_a_plugin_free

Stefan

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Article David Loveluck · Jan 26, 2016 1m read

This is a nice introductory explanation of MQTT that I thought would be of general interest. The technology used for the broker in this case is not that important as there are several brokers available.

At global summit we will be demonstrating ways to use MQTT with Ensemble to get information from the Internet of Things into your enterprise applications and business processes,

http://www.hivemq.com/blog/how-to-get-started-with-mqtt

Dave

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Article David Reche · Dec 22, 2015 1m read

In some project, I found the need to use SMIME format https://www.ietf.org/rfc/rfc3851.txt, basically is an standard used to wrap a message together with its signature using a certificate (usually X509). Ensemble don't have a single class to do that but inside the Ensemble installation we have the openssl utility, so in this example I use the "openssl smime" command to sign or verify a message.

The example has two Business Process that able to sign or verify and in order to test I made a simple production.

Hope this helps

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Announcement John Murray · Jan 21, 2016

Announcing Deltanji 6.0, the latest version of the well-respected George James Software source control product formerly known as VC/m.

Deltanji comes in four editions, including Solo which is quick to install on Caché or Ensemble (2009.1 or later), easy to get started with, and perpetually free.

Deltanji runs within the environment whose code it is managing, integrating closely with Studio and Portal, and storing code versions in a CACHE.DAT database.

Please visit http://georgejames.com/deltanji to learn more and download the software.

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Question Scott Beeson · Jan 21, 2016

So calling this lookup manually from the console works as expected:

PHR>set key = "WMMC_IMM"
PHR>w ##class(Ens.Util.FunctionSet).Lookup("BlockFeed",key)
1

However, calling it from a method with some concatination to build the key is giving me problems:

ClassMethod canSendToState(iParticipant As %String, iFeed As %String) As %Boolean
{
    set = iParticipant _ "_" _ iFeed
    w "Looking up " _ k,!
    set = ..Lookup("BlockFeed",k,"not found")
    w "x = " _ x,!
}
PHR>w ##class("Custom.MHC.Common.Functions").canSendToState("WMMC","IMM")
Looking up WMMC_IMM
x = not found
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Question Scott Beeson · Jan 21, 2016

I'm working on some custom utility functions that I can utilize in Business Rules as well as other places.  I saw this line in the docs:

For each function you wish to define, add a class method to your new function set class. There is no support for polymorphism, so to be precise, you must mark these class methods as final.

 but I didn't really know what it meant.  I didn't run into any problems until I tried calling one of my new methods from another method.  Removing the [ Final ] fixed the issue, but I'm guessing that means I can't call them from Business Rules now?

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Question Steve Shaw · Jan 21, 2016

Hi,

I'm trying to create a Zen Report that, when rendered to PDF has a header on every page that includes some items from the group that I'm iterating over in the <body>.  I can't use <header> as that only displays once for each iteration, even if that spans more than one page, but <pageheader> seems to be independent of <body> so again doesn't work.

Cheers,

Steve.

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Question Pravin Barton · Jan 20, 2016

I'd like to have an array as a parameter for a SQL 'WHERE... IN' statement. The array would be modified in javascript on the browser. Here's a simplified example:

<tablePane  width="25%" id="testTable" sql="SELECT Id from Tracking_Data.Person WHERE Id IN (?)" showQuery="true">
<parameter/>
</tablePane>
<button caption="Test" onclick="zenThis.composite.testTestTable();"/>

ClientMethod testTestTable() [ Language = javascript ]
{
  var table zenThis.composite.getChildById("testTable");
  table.setProperty('parameters', 1, [1,2]);
}

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Question Fabio Goncalves · Jan 14, 2016

Is it possible to override JQuery Mobile elements´styles (buttons, lists, font size, color, etc) or an existing  theme with a separate custom css file?

I am really interested in an official or elegant way to do it.

Thanks.

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Question Scott Beeson · Jan 13, 2016

New to CSP and Zen.  I've been going through tutorials and have made some progress.  Using the "Contacts" tutorial as an example, I'm trying to create a "ViewContact" page.  I want this to be linkable so I'm using URI Parameters, which I understand.  However, what I'm not sure about is how to retrieve a specific record.  Should I use a SQL statement?  If so, how?

Let's say I just wanted to display the property "Name" for the contact with ID 12.  What would be the best way to do so?

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Question Scott Beeson · Jan 13, 2016

I created a Zen page with a header. All is good. I then created a new Zen page and during the wizard specified that it was a "subclass of a template page". So now I have Class Custom.App.HomePage Extends Custom.App.TemplateMaster. If I visit HomePage.cls I see the header from the template. However, the HomePage class has no XData Contents section so I have no idea how to actually add content. I tried adding the section but once I do then I don't see the template content anymore.

So, how do I put content in a page that extends another page as a template?

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Article Simon Bijl · Jan 12, 2016 9m read
Is there someone that has developped a program in order to create a 
"decisiontree"? Depending The answer to a question leads to another question, and so on, 
and so on, and there is an option to return to another point in the decisiontree.

Best regards,

Simon.

p.s. I've already got something, but it's not workable. But to get an idea:

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Article Mark Bolinsky · Jan 7, 2016 1m read

Often times support and sales engineers are asked about recent benchmark results on various platforms and large scale configurations.  These will be made available here in the Developer Community in the "Documentation" section, and as an example here's a link to a recent Intel E7 v2 series processor benchmark.

https://community.intersystems.com/documentation/data-scalability-intersystems-caché-and-intel-processors-0

There are several reports available and more will be made available on an on-going basis.

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Article Stefan Wittmann · Jan 6, 2016 1m read

You may have missed the news that support for older version of Internet Explorer ends next week Tuesday, January 12th. The original blog post from Microsoft can be found here:

https://www.microsoft.com/en-us/WindowsForBusiness/End-of-IE-support

A patch will go live next week Tuesday, that will nag users of older IE versions to upgrade to a recent version. The patch is identified as KB3123303. You can find more information about this patch here:

https://support.microsoft.com/en-us/kb/3123303?sd=rss&spid=14019

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