Populate group member based on group selected

[Bindhu1]

I have below 2 variable, based on group selection , group member should get populated [each group has only one member] 
1.approval_group: referring to sys_user_group table
2.approver: referring to sys_user table
tried below script, its not populating member, please help me here
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script include: 

var GetApproverByGroup = Class.create();
GetApproverByGroup.prototype = Object.extendsObject(AbstractAjaxProcessor, {
   getApprover: function() {
       var groupSysId = this.getParameter('sysparm_group');
       var userSysId = '';
       if (groupSysId) {
           var gr = new GlideRecord('sys_user_grmember');
           gr.addQuery('group', groupSysId);
           gr.query();
           if (gr.next()) {
               userSysId = gr.user.toString();
           }
       }
       return userSysId;
   }
});

Onchange client script : on change of group variable

function onChange(control, oldValue, newValue, isLoading) {
   if (isLoading || newValue == '') {
       return;
   }
   var ga = new GlideAjax('GetApproverByGroup');
   ga.addParam('sysparm_name', 'getApprover');
   ga.addParam('sysparm_group', newValue);
   ga.getXML(function(response) {
       var approver = response.responseXML.documentElement.getAttribute("answer");
       if (approver) {
           g_form.setValue('approver', approver);
       }
   });
}

[Bindhu1]

Thanks! this worked for me! may I know where i was doing wrong ?

[Shivalika]

Hello @Bindhu1 

I am glad this worked for you. 

Please accept my solution as answer 😊 this would help me gain recognition for my efforts of debugging scripts.

Kindly mark my answer as helpful and accept solution if it helped you in anyway. This will help me be recognized for the efforts and also move this questions from unsolved to solved bucket. 

Regards,

Shivalika 

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[Shivalika]

And yes @Bindhu1 

The correction was in IF logic - because you mentioned the group has only one member, so instead of running through whole we return just one. 

Please mark all my relevant answers as helpful and accept solution 😊. 

Regards,

Shivalika 

My LinkedIn - https://www.linkedin.com/in/shivalika-gupta-540346194

My youtube - https://youtube.com/playlist?list=PLsHuNzTdkE5Cn4PyS7HdV0Vg8JsfdgQlA&si=0WynLcOwNeEISQCY

[Ankur Bawiskar]

@Bindhu1 

In the original question @Bindhu1 already had If in the GlideRecord instead of While so I don't think that was the issue.

[Ankur Bawiskar]

@Bindhu1 

The same script you also used and posted in your original question
What's the difference?

I couldn't find one.

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