Article Chris Stewart · Apr 25, 2017 5m read

In our last lesson, we implemented a linkage to our WidgetAccessory class, and debugged some errors we encountered along the way.  We now have our data being returned by REST, but what if we want to update or add new data to our application?  

So far we have only used HTTP GET commands with our REST Services, we now have to implement PUT (which roughly corresponds to an Update) and a POST (which roughly corresponds to a Create.  Author's note: there is a lot of writing online about why this statement isn't entirely correct, I'm not going to go into the detail here).

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Article Chris Stewart · Apr 24, 2017 4m read

or "Things are going to break"

We left our application over the weekend, secure in the knowledge that it was returning data from our primary persistent class, User.Widget.  However, Widgets Direct are the premier supplier of both Widgets AND Widget Accessories, so we should really start working on adding these Accessories to our application. 

We should do some housekeeping first though.  Our Page Controlller code is currently sitting in the widgetmaster.js file.

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Question Safeena M · Jun 5, 2017

Hi,

In SOAP Wizard, whatever WSDL I pass, I m getting the following error in the SOAP Response. Even If I create my own SOAP Web-Service and pass its WSDL, I am getting the same.

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Question Lori Fassman · Jun 3, 2017

Hi - I created a custom extension to the SDA3 Allergy class, but can't figure out how to access the actual data to plug it into the SDA in the OnAllergy method.

The method (in my extension of the HL7ToSDA class) has a method like this:

ClassMethod OnAllergy()
{

  Set cr = $c(13,10)

  do ..write(cr_"<Mode>") 
  do ..write(cr_"<Code>"_"ThisWillComeFromACustomFieldInAL1"_"</Code>")
  do ..write(cr_"</Mode>")
  d
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Question Khalid Saleem · Jun 2, 2017

Hi,

I am trying to generate a custom error-code using the following code

Class ISG.CommonBilling.Service.Test1 Extends EnsLib.HL7.Operation.TCPOperation
{
	ClassMethod khalid() As %Status
	{
		Set tSC=$$$ERROR("10001","I am here")
		write $$$GETERRORCODE(tSC)_$char(13,10)
		write $SYSTEM.Status.GetErrorText(tSC)
	}
}

And here is the output:

KINDRED>do ##class(ISG.CommonBilling.Service.Test1).khalid()
10001
ERROR #10001: Unknown status code: 10001 (I am here)

QUERY: Is there any way I can remove the part "Unknown status code: 10001 (...)" in the error-text?

Thanks in advance, Khalid

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Question Rubens Silva · Jun 2, 2017

I'm breaking my head trying to figure how to solve this issue. 

When using SQL, If the column (property) is populated with at least one value and is a %List, then I can check if it's $listvalid and $listlength(column) > 0.
Now let's suppose there's no data inserted for that column on next row.
I can't simply use $listvalid because $listvalid("") = 1. Yeah, empty values is a $list for Caché.
So my question is, how do I discover if the regarding column is indeed a %List independently of being empty or not when retrieving it's value via SQL?

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Question P Patz · Jun 1, 2017

I need to guarantee that a parent AND child rows has been inserted successfully before any other process is able to read ANY of the data.

What is the proper way to prevent DIRTY reads?  Per the InterSystems's documentation I should be able to use ' START TRANSACTION ISOLATION LEVEL READ COMMITTED'.  I have attempted to use these commands in embedded and dynamic SQL calls to no avail.

I have to be able to insert the data via JDBC calls, but legacy Caché (.MAC) may be reading the data, and if the data is read to quickly, I could have processing errors, as all the child rows have not been inserted.

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Question Eduard Lebedyuk · May 24, 2017

I'm aware of two ways to get list of files in a dir:

set dir = "C:\temp\"
set rs = ##class(%File).FileSetFunc(dir, , , 1)
do rs.%Display()

and:

set dir = "C:\temp\"
set file=$ZSEARCH(dir_"*")
while file'="" {
   write !,file
   set file=$ZSEARCH("")
}

Yet they bot return only files and directories in a current directory, but not files in subdirectories.

I suppose I call one of these recursively, but maybe there's a better solution?

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Question Jiri Svoboda · Jun 1, 2017

Hello,

is it possible to ZW variables in stack frames above the current one? I am calling a custom logging method, and would like to log variables from the point of call.

Thanks

Jiri

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Question Steve Pisani · May 25, 2017

Hi,

Cache Studio's inspector window can show me a Cache class's properties,methods parameters, XDATA blocks, Triggers, Foreign Keys, Queries and more, in a table in the Inspector window. Additionally, for properties, where the property accepts parameters, these parameters are listed together with possible value choices.

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Question Ponnumani Gurusamy · Jun 1, 2017

       What is the difference between mac and class files and these files are how to converted int file format

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Question Ankita JAin · May 31, 2017

Is there any methods/ways through which will get to know whether any of the Unit Test cases is/are failing in the Terminal with status as either 0 or False in case of Failure & 1 or Ture in case of Test Passes (we are getting an url of the csp page with the report which has the passed failed status) as we need to send this failure status to Jenkins for the Build to Fail (where in we have acheived this part in making the build failure/success based on  harcoded boolean)

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Question geoffroy saunier · May 30, 2017

Hi everyone,

i have a problem with the "ExecuteUpdateParmArray()" methode from the "EnsLib.SQL.OutboundAdapter" adaptater when i try to update a sql server 2008 table with JDBC connection.

..Adapter.ExecuteUpdateParmArray(.nRows,sqlUpdate,.param)

return to me the following error:

- "ERROR #5023: Remote Gateway Error: JDBC Gateway execUpdate(0) error -1: no value specified for parameter 1."

the sqlUpdate is like "update table SET column1 = ?,column2 = ?,column3 = ? where id = 1"

i built my param like this :

s param(1) = 'x'
s param(2) = 'y'
s param(3) = 'z'
s param = 3

i have no proleme for

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Question Shanmuga rajan · Sep 23, 2016

i got an unspecified character in my try-cache i do sample class definition using stream collection what is my defect plz reply me as soon as possible

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Announcement Stefan Wittmann · Aug 25, 2016

As Bill has mentioned earlier in his post, we have carefully reviewed the JSON capabilities and made some adjustments to ensure they deliver the best benefit to you. In this post, I am going to describe the modifications in more detail and provide guidance for you to understand the implication for your code base.

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