#Caché

EDIT: This article has been updated with up-to-date information about the Port project, which now includes a tutorial for basic usage.
The Port project is something that I've introduced more than two years ago but I hadn't enough room to elaborate a tutorial on how to use it till now.

First, the motivation:

I started this project several months  years ago when I noticed that most of the Studio's source control implementations weren't project based but instead namespace based. While developing it I noticed some potential keys factors that made me put a bit more of effort on it, even though

The .NET Core Identity model has an IPasswordHasher<> interface for  for 

• Hashing a password so that it can be stored in a database
• Verifying a provided plain-text password matches a previously stored hash. 

I am getting invalid password errors during the login process when the .NET Core Identity model computes a hash from a plain text input and compares it to a password hash value I've returned from Caché. The default hashing algorithm is PBKDF2 with HMAC-SHA256, 128-bit salt, 256-bit subkey, and 10,000 iterations (detailed article on .NET Core Identity PasswordHasher). The algorithm Caché uses is probably different which may be why I am getting errors.

Our team is reworking an application to use REST services that use the same database as our current ZEN application. One of the new REST endpoints uses a query that ran very slowly when first implemented. After some analysis, we found that an index on one of the fields in the table greatly improved performance (a query that took 35 seconds was now taking a fraction of a second).

We saw this improvement on our development system and our test system. However, when we moved the code to the production system, the query still took “forever”. What went wrong?

• We checked that the code was properl

Hello!

My goal is to serve files using REST classes only (no filesystem should be used), and I am a halfway far from it.

What I am succeeded in, is serving character files (html/css/javascript/etc) using the next approach:

Has anyone used Cache \ DeepSee for graphical curve fitting and data reduction using Cubic Spline and/or 5 PL for complex curve fitting

Hi,

    I am trying to create a new report on Trakcare. I created a class file and corresponding crystal report . It works fine and data is populating when I try to run on crystal environment. But when I make a setup on Trakcare and click on print option, I am getting an error on print history " VB error in tkCrystalJob] Error number[-2147417848] Method '~' of object '~' failed [at line 421]". If I click on print preview option its going to empty browser. Inorder to setup new report, already made set up on report manager and menu manager.

Can anyone have any idea abt this error?

Thanks

I'm a DBA and support Caché databases on AIX. I coded shell scripts for monitoring journaling status, databases size, license end date.

We recently got a new instance of Caché on Windows. I'm just curious to know whether anyone coded database monitoring scripts on Windows using PowerShell or any other scripting language.

If yes, please share the details.

Thanks & Regards,

Bharath Nunepalli.

I have global with binary data, structured like:

^a(1)=<binary>

^a(2)=<binary>

^a(n)=<binary>

What could be easiest way to read it via Stream interface? I.e. to pass an adapter to a function expecting Stream?

Hi

I am trying to upload a file to a ftp site using following code. Problem is file is getting upload but there is no data. Can you plz advise where I am getting lost. Also my files are with big data, 2+ GB, as far as know this ftp upload will not effect on my cache.dat size. Plz correct if my understanding is not correct.

Set ftp = ##class(%Net.FtpSession).%New() set sc = ftp.Connect("myFtpServer","myUserID","myPswd") Set filestream = ##class(%Library.FileCharacterStream).%New() Set sc = filestream.LinkToFile("\Temp\GaganTest") set newname = "PrintWaitDetail-14936.xls" Set sc = ftp.Store(new

Hi Developers!

InterSystems IRIS stores everything in globals and if we use ObjectScript classes to persist data class documents globals it uses in storage. But if you use globals for calculations, temporary storages, for special indexes or for some other purposes - how do you document it?

Possible options which come to my mind:

1. Macro

#define Array ^MyGlobal

usage:

s $$$Array(1)=1

2. Class parameter

Parameter Array ="^MyGlobal";

Usage:

s @(..#Array)@(1)=1

3. Documentation comment

Just document it to have it in a class documentation

/// ^MyGlobal is used to store my data

What d

Hi ,

I would like to know if there is possibility to disconnect child from parent in Parent/child relation and move child to Other Parent? 

Object Synchronization is a feature that has been around for a while, since Caché days, but I wanted to explore a bit more how it works. I've always thought that database automatic synchronization is complex by nature but, for some particular scenarios shouldn't be so hard. So I considered a very simple use case (OK, perhaps the typical one, I'm not discovering anything... but if it's common and it works, it's good ). You can download from GitHub and compile it into your system, generate sample data and play a bit with it. It's done for InterSystems IRIS but it also should work in last versio

Hi,

Is there any way to set environment variables in Linux from Cache?

I see a way to get an environment variable with: $system.Util.GetEnviron()

Essentially I am converting from VMS (DCL) to Linux.

In VMS we used $ZF(-1,"SETSYM") in Cache to a value and then interpreted that value in a DCL procedure.

Actually, I think I should just explained the need. We are writing linux scripts that call cache routines and we would like to pass back a value indicating failure or success to be handle it in the linux script. Right now we are writing out a log file, opening it and searching for a string. An

The newer dynamic SQL classes (%SQL.Statement and %StatementResult) perform better than %ResultSet, but I did not adopt them for some time because I had learned how to use %ResultSet. Finally, I made a cheat sheet, which I find useful when writing new code or rewriting old code. I thought other people might find it useful.

First, here is a somewhat more verbose adaptation of my cheat sheet:

I have a list property that I query from the database to get the values contained in that list using $LISTFROMSTRING() when the list is returned the list values contain a rectangle like character similar to when you copy past something to the Terminal and it has a preceding space .The problem is I need to compare those values to other values and they do not match because of this value I have tried to use $EXTRACT(value,*W) and *P but this is not striping the preceding character how do I get rid of this character any ideas please. 

the values returned from the Database 

here is what I have tried

In Cache for UNIX (Red Hat Enterprise Linux for x86-64) 2018.1.2 (Build 309U) Mon Mar 4 2019 15:07:46 EST

I have a master record that has a relationship to a table with multiple transactions, and the transaction table has a relationship to another transaction table with multiple other transactions.

IE Item to Physcal to Physical Report

Item Master:

Relationship PhysicalRecord As User.pytrn [ Cardinality = many, Inverse = ItemRecord ];

First transaction table

Relationship ReportRecords As User.pyrpt [ Cardinality = many, Inverse = PhysicalRecord ];
Relationship ItemRecord As User.immst [ Cardinality

SQLCONNECT1 = tableUsers

SQLCONNECT2=tableLogEntries

select * from tableusers u, tablelogentries e where e.userid = u.userid

I keep getting the error References to an SQL Connection must constitute a whole subquery

Hello All,

I need some help:

 I would like to create Web Application using our ZEN with Cache DB so please guide me.

1.What is difference between zen page and zen application.

2.what is the difference between Client Method and server Method then where to use it.

Thanks.

Hi

Is there any way to control what control sequence is sent to a device when a   "write #" is executed?

I have an application that establishes a banner at the top of the terminal window and when we do a   "write #" the banner disappears.  I need to be able to recreate the banner line as part of the screen clear.

Thanks

Jenna

I have an OAuth 2.0 development environment where Caché is serving all three roles as the Authorization Server, Client and Resource Server based on a great 3-part series on OAuth 2.0 by @Daniel Kutac. I have a simple password grant type where an x-www-form-urlencoded body (as described in this post) is sent as a POST to the token endpoint at https://localhost:57773/oauth2/token and a response body with a HTTP Response 200 header is returned. The response body looks something like this.

Hi,

I am trying to use the  LogicialToDate method in the %Library.FilemanDate class.  In the class documentation it talks about the parameter STRICTDATA (see below).  I would like to set the STRICTDATA to a 1 but I am not sure how to do that when using this method because the method does not reference this as a parameter to be passed into it.  (see below).

How do I set the parameter?

Thanks

parameter STRICTDATA = 0;

1/0 flag which determines if the LogicalToFormat conversions will process imprecise logical FileMan Date values Default setting is STRICTDATA=0 Parameter affects the generation of the

Hey Guys,

I got stuck with this for 2 days, please help me

Actually my logic is when I enter the input on the text field in browser, the entered input to be print on the next page but I am getting "Undefined". How to i do it.

Below is my code:

Class Patient.Testing Extends %ZEN.Component.page
{
/// Class name of application this page belongs to.
Parameter APPLICATION;
/// Displayed name of this page.
Parameter PAGENAME = "userLogin";
/// Domain used for localization.
Parameter DOMAIN;
/// This Style block contains page-specific CSS style definitions.
XData Style
{
<style type="text/css">
/* sty

Hello everyone,

I'm tryingt to install Ensemble from an existing Caché installation,  is this possible? if possible, please send me links.

Best Regards.
Flávio.

Hello everyone,

I was first introduced to TDD almost 9 year ago, and I immediately fell in love with it. 
Nowadays it's become very popular but, unfortunately, I see that many companies don't use it. Moreover, many developers don't even know what it is exactly or how to use it, mainly beginners.

Overview

My goal with this article is to show how to use TDD with %UnitTest. I will show my workflow and explain how to use cosFaker, one of my first projects, which I created using Caché and recently uploaded to OpenExchange.

So buckle up and let's go.

What is TDD?

Test Dri

is there a script with MDX language that's works like the function ISCROSSFILTERED in DAX?

ISLEAF() doesn't work if I select more than one member in the slier.

Thank you for your help.

Just wondering if anyone knows if there is a way to get daily emails or alerts about changes to a cache database.  I know that all of that information is contained within the journal files, just wondering if there is a way to bundle it up each day and send it off for auditing, etc.

Any solution where a plain-text/readable format of changes to the cache database could be sent or stored for review would solve the issue.

Thanks!

Hello,

I am struggling to print out the actual property values of the Security.System class.

https://cedocs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.c…

I was hoping to be able to print the Authentication Enabled properties of a system from the command line using the Get or GetProperties class method. Currently, however, I am only able to get a return 1 or Invalid Oref error.

I would expect one of these to work, but I think I am missing something. Any tips?

%SYS>w ##class(Security.System).Get("AutheEnabled")

1

%SYS>w ##class(Security.System).GetProperties("AutheEnabl

Hello! I'm sending get request. When send the request bellow 

Set httprequest=##class(%Net.HttpRequest).%New()
Set httprequest.Server=url
Do httprequest.Get("/"_par1_"/"_par2)
 Set statusCode = httprequest.HttpResponse.StatusCode

I get http status 200, but should get 410 status. Since the parameters passed are not valid. 

If I send request differently as below, I get http status 410, which is correct. 

Do httprequest.Get("/2019/0912")

What is the difference between these two requests Do httprequest.Get("/"_par1_"/"_par2) and Do httprequest.Get("/2019/0912")?

Hello,

There is a problem connecting clients through ODBC.

"ERROR [08S01] [Cache ODBC][State : 08S01][Native Code 459]
Connection via cconnect failed: 
TCP connect() failed - exception satisfied select().
Reason: (10061, 0x274d) No connection could be made because the target machine actively refused it."

Error sometimes occurs. In cconsole.log there are only messages about high CPU usage.

ODBC and Cache version Cache for Windows (x86-64) 2013.1.4 (Build 801).

Any suggestions?

A SOLID Design in Cache Object

In this session, we will discussing SOLID Principle of Programming and will implement in a example.
I have used Cache Object Programming Language for examples.
We will go step by step to understand the requirement, then what common mistakes we use to do while designing, understanding each principles and then complete design with its implementation via Cache Objects.

If you have any questions or suggestions, please write to me - sethisourabh.hit@gmail.com

CodeSet - https://github.com/sethisourabh/SolidPrinciplesTraining