I want to override the Get and Set methods of a class property.  The class maps to a pre-existing global. The property is defined like so:

Property Invalid As %Library.Boolean;

with the property mapping to a node like ^GLOBAL(Code,"INVALID")=1
Code is a property in the same class.

The value can be 0 or 1 or the node might not exist. When it doesn't exist I want the value of the SQL field to come out as 0 (false).

Last answer 22 July 2016 Last comment 28 July 2016
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Cache 2015.2

I need to get a sort order stored in my database with mutiple decimal places, but I want the string stored and retrieved EXACTLY as I enter it. so if someone enters 700.3000 I don't want cache to treat it as a decimal and strip the trailing zeros storing it as 700.3

once it comes back, I want the sorting to sort AS STRINGS, again, none of that stripping training/leading zeros.

this ay, I can create local arrays in exactly the order they think? they created them

Last answer 27 July 2016 Last comment 26 July 2016
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i'm looking for a way to display a list of tables in an application.  I need a Table or Schema API, and I can't find one.  I found this:

 

http://docs.intersystems.com/latest/csp/docbook/%25CSP.Documatic.cls?PAG...

 

with a google search, but I'm not sure if I can even use this (it says that SQL name is "TABLES"), or how to use it.

 

Is there a way to get at the table names available in a namespace?

Last answer 26 July 2016 Last comment 27 July 2016
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There are many storage technologies available today from various vendors.  The storage technology and configuration best for your application depends on the application access patterns and workloads.  

The attached document discusses the various design considerations and recommendations for various technologies.  This guide is to help you during discussions with your storage vendor to determine the appropriate storage technologies and products that will work best to meet the performance goals for your applications.

Last comment 26 July 2016
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Hello, guys.

I have a set of file names (e.g. file.cls, file2.mac and so on) and I need to check whether these files are mapped in %ALL or current namespace.

I found that if I open Globals in the current namespace I can see mapped packages. And If I open this global I see all files that are  to this namespace and %SYS. The problem is these files are enumerated in a json object(apparently)

ex. "{""class"":{""%Activate.Enum"":{},""%Activate.GenericObject"":{""CreateObject"":0,""GetObject"":0},""%Activate.HandleEvents"")

Last answer 26 July 2016
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Cache tricks

Several years ago, long before Developer Community Portal was launched, I published a series of Caché tricks at one of Czech web sites. In this article, I’m posting translated version of one of them.

Capturing output of someone else’s methods or routines

Suppose you, or someone else created a useful method or routine, that was producing some computation that you’d like to benefit from, but the routine was writing output to process principal device.

You would like to use the data, but you need it not written to a device, but assigned to a variable. And, for any reason, you can’t modify the code. What can you do?

Last comment 26 July 2016
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Hi,

I want to create a table with a dynamic display of data using the DataGrid.

On the page there  dataCombo and the table.

According to the plan, when the user selects an item in dataCombo the table is filled with data. If select another item - data is updated.

But in fact, the data in the table are loaded once when the page is loaded, and when I select value in DataCombo, I receive an error:

Last answer 26 July 2016
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Let's say that we wish to store the documents sent to us via all of our Customers, and that the documents could be in PDF, spreadsheet, RTF, plain text, Comma-Separated-Values and XML.

It would be hoped that %Stream.Object would be a good choice of property to hold these documents, especially as you would expect %Stream.Object to morph between BINARY (for PDF, spreadsheet, RTF) or CHARACTER (for plain text, CSV, XML) depending on which type of stream was being persisted.

Last answer 25 July 2016 Last comment 26 July 2016
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If I am in a community on this website looking at articles would expect a search box at top so I can search within this community.

 

1) The search top right is too general (I don't want to have to sub search, refine or just ignore irrelevant results)

2) Most forums have the ability to easily search within them on other sites, which is what as a user I would expect

Last answer 25 July 2016 Last comment 26 July 2016
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Today I'm releasing a new EWD 3 module - ewd-feder8.

ewd-feder8 is a federation or integration platform, built as an extension of the EWD 3 ewd-xpress module.  So what does it do and what's it for? 

It's all about federating and integrating multiple web or REST service end-points.

At its simplest you can use it as a proxy server in front of a remote web service or REST end-point.

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If our SVN repository already is storing discrete .cls files, does Atelier do any conversion when we load from SVN into our server instance? 

At what point would I see .udl files? I am thinking I would only see that if SVN was storing .xml and each of those would be converted to .udl.

 

 

Last answer 23 July 2016
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This article created as side effect of preparations to the longer set of articles about simple, but still handy MapReduce implementation in Caché. I was looking for relatively easy way to pass arguments to (potentially) multiple targets via remote calling facilities. And after several attempts I have realized that we do have very powerful mechanism in the Caché ObjectScript which might be of particular help here – dynamic dispatch for methods and properties.

Last comment 21 July 2016
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Hi,

I am new to Cache and I am trying to convert a JSON string (msgdata) that contains a JSON payload to an object to be saved into a Driver. Entity table.  I am running into 2 issues and would appreciate any help:

1) It seems that when the 1st element of a list within the payload (Choices) is an empty string, after I call %ConvertJSONToObject, the obj.%data("payload").Choices contains just 1 empty element, removing the next 3 valid values (10,20,30). The same does not happen if I change the input to [10,20,"",30], in this case it works correctly.

Last answer 20 July 2016 Last comment 20 July 2016
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Hello, guys. 

I want to add a class to my project. This class is in UDL format. 

I know that there is a method:  ##class(%Compiler.UDL.TextServices).SetTextFromStream. The problem is that to use this method I need to know the name of the class (including all packages) in advance. But,  a class can have any name(I mean C:/source/AAA/BBB/CCC.cls, but the real name is Sample.Human.cls).

For now I found only one way to get to know the name of a class - just parse the class code and search for a word which is followed by "Class" word. Is there any better way to do that? 

Last answer 20 July 2016 Last comment 20 July 2016
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              While Studio and Atelier are useful development interfaces, there are occasionally situations where a quick edit needs to be made to code and only terminal access is available.  A useful set of tools to do this are the zload, zprint, zinsert, zremove, and zsave commands.  These are abbreviated to zl, zp, zi, zr, and zs respectively.  While each of these commands has its own page in documentation, this article will synthesize that information with examples to provide instruction for their combined use.

Last comment 19 July 2016
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Hello,

How to get XML subtree from XPATH.DOMResult object as Stream or CacheString.

 

Here is my classmethod. My system receives XML message which has nested structures. The requirement is to send one message at a time to the destination. I have created the XPATH document and used EvaluateExpression method and which returns XML.XPATH.Result of type DOM. I am able to read the dom and get value of the element and its text. But I am looking to send back the subtree.

Code:

Last answer 19 July 2016 Last comment 19 July 2016
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I was asked about using date-based criteria in the file spec for an inbound file adapter.

It looks like the file spec field only accepts simple wildcards (*, ?), so I'm wondering if someone knows of a clever way of doing this preferably without creating a custom adapter/service class.

An example of the use case:
An upstream system continually writes records to a file named with the current day's date. At midnight it opens a new file with the new day's date:

Last answer 19 July 2016 Last comment 15 July 2016
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I have a Zen Mojo application, developed using Bootstrap plugin and using "Explicit Dispatch" with multiple templates.

I have every template representing an specific area of my application (customer, order, logon, application settings, etc.). 

Each template has specific code,  client side validation and so on related to its areas by using javascript.

Last answer 19 July 2016 Last comment 19 July 2016
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