Forms 71: update a container item from callout cgi

catorarn

I have a problem updating the current node in a container with a cgi callout value. I got it working for a hardcoded container item like this /article/iptc/iptc[2]/iptc-callout, and I got it working for all at once, however I cannot get it to update the current item as item is undefined in the callout ipl.

There surely is some way to do this... however I cannot find any reference implementation of this.

This is my code:

datacapture.cfg
[html]

dtd-system-identifier="C:\Interwoven\TeamSite\httpd\iw\article.dtd" name="Article">

<script language="javascript" location="template-type" src="article.js"/>




Iptc


Choose IPTC











[/html]

callout cgi ipl - javascript section
[html]
function set_datacapture_item_value( selectedValue )
{
if ((window.opener == null) ||
(window.opener.closed))
{
return false;
}

window.opener.focus();
window.opener.accumulate(selectedValue); //accumulate is a handler//

var calloutForm = eval($form_name);
if (!calloutForm)
{
return false;
}

var calloutElementFound = false;
for ( i = 0 ; i < calloutForm.elements.length ; i++ )
{
if (calloutForm.elements.name == '$element_name')
{
calloutForm.elements.value = selectedValue;
parent.getScriptFrame().accumulate(selectedValue); //accumulate is a handler//

calloutElementFound = true;
break;
}
}
if (!calloutElementFound)
{
return false;
}

return true;
}

function handle_selection()
{
var datacapture_item_value = "";
var datacapture_item_text = "";

var optionsArray = document.callout_form.selection_list2.options;
for ( i = 0 ; i < optionsArray.length ; i++ )
{

datacapture_item_value = datacapture_item_value + optionsArray.value + "\\n";
datacapture_item_text = datacapture_item_text + optionsArray.text + "\\n";

}
if (datacapture_item_value != "")
{

set_datacapture_item_value( datacapture_item_value);
opener.top.datacapture.refreshForm();

self.close();
}
else
{
alert('Please make a selection.');
}
}
[/html]

article.js
[html]
function init() {

// Register a function to change the DCR field iptc-callout based on the IPTC value in the calout jsp.
IWEventRegistry.addItemHandler("/article/iptc/iptc/iptc-callout","onCallout", handleCallout);

}
function accumulate(selectedValue)
{
//alert('the callout called this function');

var containerValue = "/article/iptc/iptc";
var count=0;

while (IWDatacapture.getItem(containerValue + "[" +(count+1) + "]")!=null)
{ count++;
alert("count=" + count);

}
if (count>0)
{
for(var i=1;i<=count;i++)
{
var item = IWDatacapture.getItem(containerValue + "[" +(i) + "]");

//alert("item=" + item);
var item_child = item.getChildren()[0];
//alert("IPTC Callout item_child=" + item_child);

//if current item equals item_child, then set value to selectedValue
item_value = item_child.getValue();
//alert("Z2 item_value=" + item_value);

}

//update the current iptc-callout value
if (item_value)
{
item_child.setValue(selectedValue);
}
}
}

[/html]

How should I approach this ?

ISCBorisB

I got it working for a hardcoded container item like this /article/iptc/iptc[2]/iptc-callout, and I got it working for all at once, however I cannot get it to update the current item as item is undefined in the callout ipl

My favorite approach for callout DCR modifications is to use "callback" functions.
You code them within Type's DCT and then execute them (eg, "call back" to DCR) from
the callout generated JS.

In this schema you can pass any information back and forth, including for example
replicated callback Element XPath. Since your Functions belong to DCT you can make any
changes whatever, not just modify Item Values etc.

Take a look at [thread=27837]this[/thread] thread for some discussion.