g_form.getReference() is not working in Service Portal

[Siva Kedari Vee]

In an onChaneg script when Business Application is populated i used a g_form.getRefrence() to return the value of the Bit Correlation ID field (“u_bit_correlation_id”) from the record and then pass it into a script include to query the table “sn_apm_business_app_additional_fields” and return the value for the field “u_pmp_2020_attestation” from it and populate it in PnP attestation if the value returned is Null OR empty. Production data is NOT present in any non-production environment” then return an error message and show a variable Label

Everything is working as desired but the g_form.getReference() is not working in portal and throws an error message to the console. Can some one help me to fix this

************************On change Client Script***************************
function onChange(control, oldValue, newValue, isLoading) {
	if (isLoading || newValue == '') {
		g_form.setVisible('no_exception_found_please_update_applab_pnp_section_before_request', false);
		return;
	}

	
	var bit_Id = g_form.getReference('business_application_number').u_bit_correlation_id;
	
	
	//alert('The Bit ID is: '+ bit_ID);
	var ga = new GlideAjax('populatePnpAttestation');
	//ga.addParam('sysparm_name', 'getPnpAttestation');
	ga.addParam('sysparm_bit_co_id', bit_Id);
	ga.addParam('sysparm_bit_co_id', value);
	ga.getXML(callBack);

	function callBack(response){
		var answer = response.responseXML.documentElement.getAttribute("answer");
		//alert('The PnP Attestation is: '+ answer);
		g_form.setValue('pnp_attestation', answer);

		if(answer == null || answer == ''){
			g_form.setVisible('no_exception_found_please_update_applab_pnp_section_before_request', true);
		} else{
			g_form.setVisible('no_exception_found_please_update_applab_pnp_section_before_request', false);
		}
	}

}


**************************Client Callable Script Include*******************************

var populatePnpAttestation = Class.create();
populatePnpAttestation.prototype = Object.extendsObject(AbstractAjaxProcessor, {
	
	getBitID: function(){
		var businessApp = this.getParameter('sysparm_business_app');
		var bitId = '';
		
		var gr1 = new GlideRecord('cmdb_ci_business_app');
		gr1.addQuery('sys_id', businessApp);
		gr1.addQuery('install_status', '1');
		gr1.query();
		if(gr1.next()){
			bitId = gr1.u_bit_correlation_id;
		}
		return bitId;
	},
	
	getPnpAttestation: function(){
		var bit_co_id = this.getParameter('sysparm_bit_co_id');
		var pnp_attestation = '';
		
		var gr = new GlideRecord('sn_apm_business_app_additional_fields');
		gr.addQuery('u_business_application.u_bit_correlation_id', bit_co_id);
		gr.query();
		if(gr.next()){
			pnp_attestation = gr.u_pmp_2020_attestation;
		}
		return pnp_attestation;
	},

    type: 'populatePnpAttestation'
});

I tried the same using another glide Ajax and it is somehow not working, Can someone help me to fix the issue

Regards,

Siva Kedari

[Allen Andreas]

Hello,

getReference alone, will not work on the Service Portal. As mentioned, you'd have to use a call back function and this has been the case for years (you can search the forums easily for: getReference not working on Service Portal and find many, many threads about it with correct answers marked), example: https://community.servicenow.com/community?id=community_question&sys_id=13edf68ddb5033841cd8a345ca96...

For your GlideAjax, please use log statements and let us know where you're seeing issues. Currently, I don't see any listed anywhere.

Please mark reply as Helpful/Correct, if applicable. Thanks!

[Harsh Vardhan]

Another question, i have observed you are not calling your script include method in client script, i can see it has commented in your client script ?  please uncomment it this way your method will get invoked . 

//ga.addParam('sysparm_name', 'getPnpAttestation');

I would suggest avoid getReference with call back function, and use glide record in script include to get display value and ID. 

Go with my second response. 

Let me know if you need any further help.