Callback function used for g_form.getReference is not working in portal

vanessaheux · ‎09-24-2019

Hello,

I have a country variable in a request item which is automatically filled thanks to the country of the location (location which is another variable in the same request item).
When location is filled, country is automatically filled.
This works thanks to a catalog client script. It only works on the platform but not in the portal.
I know that g_form.getReference can’t be used in catalog client script and so we need to create a callback function.
I created it but I still have the problem : ok on the platform but not in the portal.
Here is the catalog script I wrote:

function onChange(control, oldValue, newValue, isLoading) {
var caller = g_form.getReference('user_location', doAlert); // doAlert is our callback function
}
function doAlert(caller) { //reference is passed into callback as first arguments
g_form.setValue('user_country',caller.country);
}

Do you have any idea why it is not working in the portal ?
Thanks
Vanessa Heux

Harsh Vardhan · ‎09-28-2019

if above solution not working , replace the code with script include + glide ajax .

try now with below sample code.

Sample Code:

Script Include:

var getCountry = Class.create();
getCountry.prototype = Object.extendsObject(AbstractAjaxProcessor, {

	getCont : function(){

		var cnt = this.getParameter('sysparm_user_name');

		var gr = new GlideRecord('cmn_location');
		gr.get(cnt);
		var cmn = new GlideRecord('core_country');
		cmn.addQuery('name',gr.country.getDisplayValue());
		cmn.query();
		if(cmn.next()){
			return cmn.sys_id;
		}},

	type: 'getCountry'
});

Catalog client script:

function onChange(control, oldValue, newValue, isLoading) {
	if (isLoading || newValue == '') {
		return;
	}

	//Type appropriate comment here, and begin script below
	var caller = g_form.getValue('user_location'); // make sure about the variable name
	var ga = new GlideAjax('getCountry');
	ga.addParam('sysparm_name', 'getCont');
	ga.addParam('sysparm_user_name',caller);
	ga.getXML(HelloWorldParse);

	function HelloWorldParse(response) {
		var answer = response.responseXML.documentElement.getAttribute("answer");

		g_form.setValue('user_country',answer); // make sure about the variable name
	}

}

Note: Validate the variable name in above client script.

View solution in original post

Harsh Vardhan · ‎09-27-2019

country is a reference variable ? if yes then it is referencing to which table ? i dont think here the issue in script , seems like the value which you are getting is not available on your country reference table.

change the country variable it to single line text and see if it's setting or not.

vanessaheux · ‎09-27-2019

Country is a reference to core_country table.

This is not a problem as it works on the service catalog in the platform but only not in the portal.

Harsh Vardhan · ‎09-27-2019

try now.

function onChange(control, oldValue, newValue, isLoading) {

  var caller = g_form.getReference('user_location', doAlert); 
}
function doAlert(caller) { 
alert('Value is '+ caller.country);
 g_form.setValue('user_country',caller.country+'');
}

Omkar Mone · ‎09-27-2019

Hi

Find it here -

https://community.servicenow.com/community?id=community_question&sys_id=13edf68ddb5033841cd8a345ca96...

Also i would suggest you to write Script include instead of getReference.

Regards,

Omkar Mone

vanessaheux · ‎09-27-2019

Hello Omkar,

As you can see in my code, I already use a callback function so that should work.

What do you mean by script include instead of getReference ?

Regards

Vanessa H.