Caché

Syndicate content 123 

I have a Cache classes with %TimeStamp (e.g. 2016-04-18 12:29:11) and %Date (eg. 64027) properties. And I have a javascript client app, which needs full CRUD over this properties.

But in javascript date/time are defined by ISO8601 (e.g. timestamp 2016-04-18T12:29:11Z, date 2016-04-18).

Last answer 20 April 2016
+ 5   0 3
0

comments

1068

views

+ 5

rating

Some may think it's a strange / daft idea, but just today the Raspberry Pi folks have announced that they've now sold more than 10 million of them..and counting.  That's a huge potential marketplace, and a great platform for getting people to hear about Cache and try it out.  Given its focus on the education sector, another great way of getting heard about.

 

Last answer 20 October 2016 Last comment 3 October 2016
+ 5   0 5
1362

views

+ 5

rating

Let's have a round of CodeGolf!

As usual the goal is to write the shortest solution for a specified problem.

Today we have one of the classics: FizzBuzz.

Write a program that prints the numbers from 1 to 100.

But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”.

For numbers which are multiples of both three and five print “FizzBuzz”

Last answer 31 July 2019 Last comment 2 August 2019
+ 4   1 7
197

views

+ 4

rating

Hi all!

I'm developing a mini-framework to implement annotations in Cache. I want to support two kind of annotations: metadata and method decorators. I've got stuck trying to implement the second one.

Metadata

With metadata annotations I can add metadata to any kind of target. A target can be a method/classmethod, parameter, property and class.

For example:

Last answer 25 January 2017 Last comment 26 January 2017
+ 3   0 2
461

views

+ 3

rating

Hello everyone!

Does anyone know of a library that can be used to create Mock objects for Objectscript classes?

Right now, my team has been building mock objects by hand to help circumvent dependencies when writing and executing unit tests, but I always wondered if someone had ever created a Mock library like Mockito to help quicken the process. 

Thanks!

Last answer 10 October 2017 Last comment 10 October 2017
+ 3   0 4
341

views

+ 3

rating

I'm finding that in a mobile app setting, that Cache is causing the worst User Experience that I have ever seen in a mobile app - I'm just saying this hoping that someone will be able to help me out, my intent is not to criticise Intersystems.

We have a Xamarin Forms mobile app that consumes web pages that are created by Cache. The app compiles into iPhone, iPad, Android Phone, Android Tablet, UWP (Windows 10, all of phone, tablet, and desktop), as well as MacOS.

Last answer 23 January 2019 Last comment 24 January 2019
0   0 5
200

views

0

rating

After enabling archiving log functions, Oracle can get real-time change data through CDC.

Can Cache database realize such functions?

My requirement is to take incremental data from the cache database regularly every day and synchronize it to other relational databases.

Incremental data can be text files.

Last answer 20 September 2018
+ 3   0 5
329

views

+ 3

rating

We are building a bunch of rest based services using Ens 2016.2 to serve our browser based application (Angular 4).

Two questions:

1. The initial authentication seems only work if credentials are placed in the url parameters.  Trying to use the Authorization header instead, the client code immediately complains about Access-Control-Allow-Origin. How can I resolve this?

 

2. After initial authentication, what is the proper way to send subsequent rest calls without having to include credential every time?

Last answer 12 April 2017 Last comment 24 April 2017
+ 2   0 6
1288

views

+ 2

rating

Hi, Community!

And so I continue with publishing of the tasks for the Final round of InterSystems Contest on InterSystems Caché and DeepSee as a part of IT Planet Student Championship in Sochi. This year we had about 2 000 participants in InterSystems Contest.

One of the tasks for the finals was to crack the black box!

Last answer 20 June 2017 Last comment 20 June 2017
+ 2   0 5
391

views

+ 2

rating

Hi Community!

Sometimes I meet a method which accepts 10+ parameters.

And often I need only the 8th parameter  to  pass. And I call the method something like:

do ##class(Some.Feature).Method(,,,,,,,"flag")

And I don't like this method when I call it like this cause, you know, often I just miss the number of commas and raise some other flag I wanted.

How do you avoid this situations? 

If you meet such a code, how do you call it and sure that you didn't miss the number of ","?

What is a good number of parameters in a method and f you need to pass more parameters in a method what do you do?

Last answer 5 May 2019 Last comment 1 days ago
+ 2   0 9
393

views

+ 2

rating

Documentation here lists the kinds of members a class definition may contain. In summary:

  • Parameters
  • Methods
  • Properties
  • Class queries
  • XData blocks
  • Projections
  • (and some that are relevant only for persistent classes):
    • Storage definitions
    • Indices
    • Foreign keys
    • SQL triggers

Later in the same document, a section headed "Class Member Names" contains this warning:

Last answer 13 February 2018 Last comment 13 February 2018
+ 1   0 5
213

views

+ 1

rating

I thought I should be able to go to the application error log or look at d ^%ER when I get the following error in the browser when troubleshooting a CSP page:

An error occurred with the CSP application and has been logged to system error log (^ERRORS)

However nothing is being generated in these logs. Where are these logs being made?

Thank you

Last answer 27 June 2018 Last comment 19 June 2018
+ 2   1 3
571

views

+ 2

rating

Hello everyone,

I have discussed extensively with Andrew Cheshire, the author of the Atelier parser (which I'll be able to hack on and reuse for CachéQuality -- yay!), and while we were at it, we also discussed code coverage.

We ended up talking about the ZBREAK command and its /TRACE option.

Last answer 14 April 2016 Last comment 14 April 2016
+ 2   0 2
245

views

+ 2

rating

I know that Cache files can be stored as XML and UDL based files. Is there any way to determine in which format the file(class, routine, dfi and so on) is stored? Because you can easily name your XML based file as class.cls and it will be perfectly valid. 

I know that one way to check whether this file is in XML format is just try to parse it like 

Set st = ##class(%XML.TextReader).ParseStream(contentStream)

if $$$ISERR(st) return $$$NO

else return $$$YES

However, is there a better way? 

Last answer 30 August 2016 Last comment 30 August 2016
+ 2   0 1
186

views

+ 2

rating

This question came on the Ensemble in Healthcare email list. It's a great question. I'm working on an answer, but am posting it here to get any other input. I'll also address the option of using %CSP.REST.

Hello everyone,

 

Last answer 10 May 2016 Last comment 25 March 2016
+ 2   0 2
6810

views

+ 2

rating

Are there any BDD testing automation implementations within Mumps/Cache Objects already in existence?

We are looking at using Cucumber for our Java regression test automation and would like to use similar feature file testing with the Cache code.


Looking to use something existing before building it.

Regards,
-Karl

Last answer 1 March 2018 Last comment 31 October 2018
+ 2   1 5
293

views

+ 2

rating

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
+ 2   0 2
815

views

+ 2

rating

It is my understanding that when a routine accesses a global it is temporarily stored in global memory. While the global is within global memory, any other routine would be able to readily access the global from memory and not from disk so long as the same node is being utilized.

Last answer 12 July 2017 Last comment 17 July 2017
+ 2   0 1
197

views

+ 2

rating

Hello, our customer, large industrial company, is considering modernizing their old CSP application so it can run on multiple client device types, using responsive design.

They have a lot of experience with CSP and some ZEN.

They are new to REST and have some limited knowledge of javascript - perhaps not enough to the extent used by client framework.

Does anyone have a framework or a set of templates that you would be willing to share?

Thank you!

Dan Kutac 

Last answer 16 May 2016 Last comment 16 May 2016
+ 2   0 0
531

views

+ 2

rating