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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     Preserving the value of a global variable

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Preserving the value of a global variable
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Dr. Nick
Gold member
posted
Hi,
I have an application using HTMLFORMS, Tables, Modify and Maintain. As everybody knows, Maintain spawns a new agent clearing out all global variables. Does anyone have a technique to securely store the global variable value and retrieve it whenever required.
Thank you,
Nick


WebFOCUS 7.7.03 & 8.0.7
Windows
HTML, Excel, PDF, etc.
Also, using Maintain, etc.
 
Posts: 83 | Registered: February 26, 2009Report This Post
Danny-SRL
Virtuoso
posted Hide Post
Nick,

Something not very well documented: one can save the LET commands with LET SAVE and also all the && variables are saved. LET SAVE creates a file called LETSAVE.FEX in a temporary folder. You can copy it to a permanent folder and reuse it.

  
-* File LET0.fex
-SET &&L1=ABCD;
-SET &&L2=1234;
-RUN
LET TFC=TABLE FILE CAR
-RUN
LET SAVE
-RUN
! TYPE LETSAVE.FEX


Daniel
In Focus since 1982
wf 8.202M/Win10/IIS/SSA - WrapApp Front End for WF

 
Posts: 1980 | Location: Tel Aviv, Israel | Registered: March 23, 2006Report This Post
Dr. Nick
Gold member
posted Hide Post
Hi Daniel,
Thank you for the quick response. LET SAVE does save the global variables and can be copied to a permanent file but this application will be used by hundreds of users, so, permanent files are not practical. Any ideas?
Thank you,
Nick


WebFOCUS 7.7.03 & 8.0.7
Windows
HTML, Excel, PDF, etc.
Also, using Maintain, etc.
 
Posts: 83 | Registered: February 26, 2009Report This Post
j.gross
Virtuoso
posted Hide Post
Note:
The "-SET && ..." lines in the generated LETSAVE.FEX file are not necessarily executable!

For example, mine has
-SET &&EDAAPP = APP-ENABLED;

which, when executed or -INCLUDEd, earns a
(FOC281) ALPHA ARGUMENTS IN PLACE WHERE NUMERIC ARE CALLED FOR


- Jack Gross
WF through 8.1.05
 
Posts: 1925 | Location: NYC | In FOCUS since 1983 | Registered: January 11, 2005Report This Post
susannah
Expert
posted Hide Post
we're taking for granted that you do in fact know the difference between &var and &&var ?
When you say 'global', you suggest &&var...
but when you say things like 'this application', you're suggesting &var...
Clarify, plz.



In Focus since 1979///7706m/5 ;wintel 2008/64;OAM security; Oracle db, ///MRE/BID
 
Posts: 3811 | Location: Manhattan | Registered: October 28, 2003Report This Post
GamP
Virtuoso
posted Hide Post
If the maintain gets started by clicking on a button, then you start it from an html page. At the moment you present your html page, you know what the &&'s are. So you could then create as much hidden text fields on your html form as there are &&'s and fillthem with the current value of the &&'s. Then, in your maintain, you could use the html retrieval commands to obtain the values of the html fields.

Hope this helps ...


GamP
- Using AS 8.2.01 on Windows 10 - IE11.
in Focus since 1988
 
Posts: 1961 | Location: Netherlands | Registered: September 25, 2007Report This Post
Dr. Nick
Gold member
posted Hide Post
Hi All,
After trying many of your techniques, others received from IBI and some blended approaches, global variables are now saved as session variables. Session variables are saved upon entry to the application then recalled and global variables reset. Maintain receives the global variables as follows:
COMPUTE XDEPT = IWC.GetAppCGIValue("DEPT");
So far, this is working but I need to now enforce security and test a number of scenarios.

If anyone knows any issues with this approach, please advise.

Also, I am a seasoned FOCUS professional who started the IBI Hotline, managed it for six years, wrote the FOCUS DB, TABLE and MODIFY internals classes and designed and build many large and complex systems using MF/VAX FOCUS. Using WebFOCUS for internet applications is new to me as is javascript but I'm a relatively quick learn.

I will post updates utilizing this approach within the next few days.

Thank you again,
Nick


WebFOCUS 7.7.03 & 8.0.7
Windows
HTML, Excel, PDF, etc.
Also, using Maintain, etc.
 
Posts: 83 | Registered: February 26, 2009Report This Post
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