Refreshing child table after adding data to it

Frappe Framework Customization
1

I have added some data to student batch student child table from student applicant doctype and then loaded student batch i am getting nothing in child table when i load the page but when i reload i was able to see data that i added

and i have done
cur_frm.refresh_field('students');

in student batch.js on onload function but i am not able to get any data on onload but if i refresh i was able to get data
can any please help me with this please

code that i used to add data to child table is

@frappe.whitelist()
def add_to_student_batch(name_of_student,id_of_student,parent):
	doc = frappe.get_doc({
			"doctype":"Student Batch Student",
			"parent":parent,
			"parenttype":"Student Batch",
			"parentfield":"students",
			"student_name":name_of_student,
			"student":id_of_student
		})
	if(doc.insert()):
		return "success"
2

@shahid_ecit,

Can you share the custom script which is calling add_to_student_batch method

3

@makarand_b

var selectStudentIdFromStudentDocType = function(){
	frappe.call({
		method: "erpnext.schools.doctype.student_applicant.student_applicant.get_name_if_enrolled_empty_if_not",
		args: {
			name_of_student: JSON.stringify(getIdsFromList())
		},
		callback: function(r){
			if(!r.exec)
			{
				stud_id = [];
				stud_name = [];
				x = 0;
				res = JSON.parse(r.message);
			    var no_of_res = JSON.parse(r.message).length;
			    for (i=0;i<no_of_res;i++){
			    	// checks  and counts selected students who are not enrolled
			    	if(res[i].length == 0){
			    		x = x+1;
			    	}else{
			    		stud_id.push(res[i][0].name);
			    		stud_name.push(res[i][0].title);
			    	}
			    }
			    if(x>0){
			    	 frappe.throw("Please Enroll the Selected Student Applicants before adding to a Batch");
			    }
			   	frappe.model.with_doctype("Student Batch", function() {
					var tlb = frappe.model.get_doc("Student Batch");
					$.each(stud_id, function(i, d) {
						var detail = frappe.model.get_new_doc("Student Batch Student", tlb,
							"students");
						addStudentDetails(d,stud_name[i]);
						$.extend(detail, {
							"student": d,
							"student_name": stud_name[i],
						});
					});
					frappe.set_route("Form", "Student Batch/App Builder-abcd-2017-18");
				})
			}
			
		}
	});
};

and definition of

var addStudentDetails = function(stdId,stdName){
	frappe.call({
		method: "erpnext.schools.doctype.student_applicant.student_applicant.add_to_student_batch",
		args:{
			name_of_student:stdName,
			id_of_student:stdId,
			parent:"App Builder-abcd-2017-18"
		},
		callback: function(r){}

	});
5

@shahid_ecit
Try this

6

@vivin_joseph it not working

7

@makarand_b is there any hope on this please help

8

@shahid_ecit