CallServer on custom instantiation screen

Hi All,
I am using TS6.7.1 Sp1 workflow modeller 1.0.0.1.

I have created a custom instantion screen using clt.
I had tried using callserver in it but it gave:-
"Error :'fw_url_bean' is undefined."
When i read in forums it said callserver is no longer supported on instantion screen.
I had used callserver for followiing requirement:
There is a date field (e.g date: 06/04/2008).
now there are two more date fields but here the value am populating depends on the date selected by user(former date field). e.g date will be populated as 07/04/2008 and 08/04/2008 i.e. difference of "1day" and "2day".(It can be manually edited too.)
Now here scenario is i am reading this differnce from an "xml" file since client want this as configurable.
Initially i had used callserver and poulated it easily.
But now since callserver is not suppported what should i use.
If i use preprocessor than i will have to use lot of workflow variables which is not good. So can ne one help me on this.

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Adam Stoller

Hi All,
I am using TS6.7.1 Sp1 workflow modeller 1.0.0.1.

I have created a custom instantion screen using clt.
I had tried using callserver in it but it gave:-
"Error :'fw_url_bean' is undefined."
When i read in forums it said callserver is no longer supported on instantion screen.
I had used callserver for followiing requirement:
There is a date field (e.g date: 06/04/2008).
now there are two more date fields but here the value am populating depends on the date selected by user(former date field). e.g date will be populated as 07/04/2008 and 08/04/2008 i.e. difference of "1day" and "2day".(It can be manually edited too.)
Now here scenario is i am reading this differnce from an "xml" file since client want this as configurable.
Initially i had used callserver and poulated it easily.
But now since callserver is not suppported what should i use.
If i use preprocessor than i will have to use lot of workflow variables which is not good. So can ne one help me on this.

Generally callServer is for scripts that need to be run on the server-side to retrieve information regarding a file (name, size, etc.) or a database. What you're talking about (one date selected for field "A" affecting the contents of date fields "B" and "C" sounds more like client-side FormAPI / JavaScript code and not callServer code.
True, this doesn't answer the question about whether callServer code works in workflow instantiation forms - but in your case, I don't think you need it.

Nikunj

Ya it is like field affecting values of field "B" and "C" but in my case, the logic on base of which field should be affected must be retrieved from an xml file.
Like i explained in my example the date differences should come from a "flat file" and should not be hard coded in FormApi javascript.
i.e in java script i dont want field B.val = field A.val + ' 1' and field c.val = field A.val + ' 2'
here '1' and '2' should come from an xml file. So that client can modify this according to their need. So for achieving this i had used a callserver which calls an ipl reads an xml file retireves the value and sets in those fields.
Do you have anyother suggestion??.. Smiley Happy

Adam Stoller

Ya it is like field affecting values of field "B" and "C" but in my case, the logic on base of which field should be affected must be retrieved from an xml file.
Like i explained in my example the date differences should come from a "flat file" and should not be hard coded in FormApi javascript.
i.e in java script i dont want field B.val = field A.val + ' 1' and field c.val = field A.val + ' 2'
here '1' and '2' should come from an xml file. So that client can modify this according to their need. So for achieving this i had used a callserver which calls an ipl reads an xml file retireves the value and sets in those fields.
Do you have anyother suggestion??..

Are you sure it isn't supported? The documentation for customizing the workflow modeler instantiation form lists a number of aspects of FormAPI that are not supported for workflow modeler, but callServer is not listed among them (page 1).
Of course, it will still be asynchronous, which is tricky to code - are you sure the XML has to be loaded / referenced dynamically rather than loaded statically within the DCT and then referenced dynamically from there? (i.e. consider populating a bunch of hidden fields with the desired values via an inline callout when the DCT is initially loaded, and then having onItemChange event handlers that reference that hidden information to do what needs to be done dynamically with the visible fileds...? Just a thought anyway.

Nikunj

Thanks for your reply,

Ya even I had read that part that's the reason i was wondering why the call server is not working??

This are the threads which says call server does not work so...but i guess even they are not sure...But one thing is for certain it is not working for me... Smiley Sad

..it gave me same error as they got..

http://devnet.interwoven.com/forums_vb/showthread.php?t=22477&forumid=16&highlight=fw_url_bean
http://devnet.interwoven.com/forums_vb/showthread.php?t=23880&forumid=16&highlight=fw_url_bean

Thanks..alot a really good suggestion..Will try that....
But here thing is i want to fetch values from xml based upon "value selected" by user i.e. fetch values from xml on some conditons.....say for e.g...if user select "week"...than value should be "1"..if xml is something like this..." < root > < SomTag name="week">< diff > 123 < /diff > < /SomTag > < /root > "
I can do one thing here with ur suggestion...i can read the whole xml file and keep it in some hidden variable......And Now use "Javascript XML parser" (upon tht variable..).....
Somehitng like this
var xmlfile = " < root > < SomTag name="week">< diff > 123 < /diff > < /SomTag > < /root >";..(This variable populated by callout)
function parseXML()
{
try //Internet Explorer
{
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
}
catch(e)
{
try //Firefox, Mozilla, Opera, etc.
{
xmlDoc=document.implementation.createDocument("","",null);
}
catch(e)
{
alert(e.message);
return;
}
}
xmlDoc.async=false;
xmlDoc.loadXML(xmlfile);
xmlDoc.getElementsByTagName("diff")[0].childNodes[0].nodeValue;

Call this parseXML() function on some event....

My only fear about this approach is, it might create browser dependencies....and other dependencies too....since am using "ActiveXObject"..

So what you suggest....??

Nikunj

Hi All,

This is just to close the thread.

I solved my problem according to the suggestion provided by ghoti.
I used inline callout and populated xml values into a hidden "select field"...and used values from this field for other field manupilations.

Thanks
Nikunj