onChange script error: RangeError: Maximum call stack size exceeded function () { [native code] }

[Mahalakshmi Rav]

When the sample number field is filled, Escalation Manager should auto populate based on the sample number field values. The sample number has different managers and it is stored in sample_data_1 table. I have written a script include and on change client script to populate the value based on the sample number selection but its not working. 

Errors which I'm facing for this script:

1. onChange script error: RangeError: Maximum call stack size exceeded function () { [native code] }

2. The escalation manager field is auto populating for a while and getting vanished. 

3. If the sample data is filled and changed, the escalation manager value is not populating. 

Script Include:

var EscalationManagerUtil = Class.create();

EscalationManagerUtil.prototype = {

    // function to get Escalation manager based on the sample  number

    getEscalationManager: function(sampleNumber) {

        var gr = new GlideRecord('sample_data_1'); // Create a GlideRecord object to query the table

        gr.addQuery('sample_number', sampleNumber); // Filter records where 'u_sample_number' matches the input

        gr.query();

        if (gr.next()) { // Check if a matching record is found

            return gr.getValue('escalation _manager'); // Get and return the 'escalation _manager' field value

        }

        return ''; // Return an empty string if no matching record is found

    },

    type: 'EscalationManagerUtil' // Define the class type

};

On change client script:

function onChange(control, oldValue, newValue) {

    // When the sample data is empty, clear the Escalation Manager field

    if (!newValue) {

        g_form.clearValue('escalation _manager');

        return;

    }

    // This GlideAjax object will call the EscalationManagerUtil script include

    var ga = new GlideAjax('EscalationManagerUtil');

    //  calling the getEscalationManager function in the script include

    ga.addParam('sysparm_name', 'getEscalationManager ');

    // sending the selected sample Number as a parameter

    ga.addParam('sysparm_sampleNumber', newValue);

    // Call the Script Include and process the response

    ga.getXMLAnswer(function(response) {

        g_form.setValue('escalation_manager', false); // Set the escalation Manager field with the response

    });

}

[Rohit Singh]

Hi @Mahalakshmi Rav ,

Please make sure that you script include is client callable and g_form.setValue('escalation_manager', false) should be g_form.setValue('escalation_manager', response).

Make correction here as well.

return ''"; // Return an empty string if no matching record is found

If my response helped, please hit the Thumb Icon and accept the solution so that it benefits future readers.

Regards,
Rohit

[Tai Vu]

Hi @Mahalakshmi Rav 

Your script include is not the Client Callable one that uses for GlideAjax.

Give me adjustment below a try

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

    getEscalationManager: function() {
		var sampleNumber = this.getParameter('sysparm_sampleNumber');
        var gr = new GlideRecord('sample_data_1'); 
        gr.addQuery('sample_number', sampleNumber); 
        gr.query();

        if (gr.next()) { 
            return gr.getValue('escalation _manager');
        }

        return ''; 
    },


    type: 'EscalationManagerUtil'
});

Cheers,

Tai Vu

[Mahalakshmi Rav]

Hi @Rohit Singh and @Tai Vu ,

I tried as per your suggestions, still it's not working. Also, my script include is a client callable one. 

[Ankur Bawiskar]

@Mahalakshmi Rav 

So you are in a scoped app

Is both script include and client script in same scope?

Try to debug step by step

1) check if script include is getting called

Seems your client script is setting "escalation_manager" which in turn is triggering another client script and hence it's causing some recursion

did you check that?

If my response helped please mark it correct and close the thread so that it benefits future readers.