template

<template id = "openeducat_create_subject_registration" name = "Create Subject Registration" > 
 <t t-call = "portal.portal_layout" > 
 <t t-call = "portal.portal_searchbar" >  <t t-set = "title" > Subject Registration Form </t>  </t>  <t t-if = "not student_id" >  <p> There are currently no information for your account !!! </p>  </t>  <







"background-color:white; padding: 20px 40px 20px 40px;">
 <div class="mt32">
 <form action="/subject/registration/submit" method="post" role="form"
 enctype="multipart/form-data">
 <input type="hidden" name="csrf_token" t-att-value="request.csrf_token()"/>
 <div class="row col-md-12">
 <div class="row col-md-6">
 <input type = "hidden" name = "student_id" t-attf-class = "form-control" 
t-att-value = "student_id.id" />  <div class = "col-md-4 mt8" >  <lable for = "course_id" > Course: </lable>  </div>  <div class = "col-md-8" >  <select id = "course_dropdown" class = "form-control"name = "course_id" onchange = "myFunction ()" > 





 
 <option value = "" class = "disabled selected" > 
 <lable> Select your option </lable> 
 </option> 
 <t t-foreach = "course" t-as = "course_id" > 
 <option t-att- value = "course_id.id" > 
 <t t-esc = "course_id.name" /> 
 </ option> 
 </t>
 </select> 
 </div> 
 <script>
  odoo.define ('portal_student.registration', function (require) { 
 var Model = require ('op.batch'); 
 function myFunction () { 
 var Users = new Model (' op.batch '); 
 var course = document.getElementById ("course_dropdown"); 
 Users.query ([' name ',' course_id ']) 
 .filter ([[' course_id ',' = ', course.val]] ) 
 .limit (15) 
 .all (). then (function (users) {
 for (i in users) { 
 document.getElementById ("batch_id"). value = i.name; 
 } 
 }); 
 }} 
</script> 
 <div class = "col-md-4 mt16" > 
 <lable for = "batch_id" > Batch: </lable> 
 </div> 
 <div class = "col-md-8 mt8" > 
 <select class = ""batch_id" > 
 <option value = "" class = "disabled selected" > 
 <lable> Select your option </lable> 
 </option> 
 <option> 
 <t id = "batch_id" t-esc = "batch_id" /> 
 </option> 
 </select> 
 </div> 
 </div>
 <div class ="row col-md-6" > 
 <div class = "col-md-6 mt8" > 
 <lable for = "min_unit_load" > Minimum Unit Load: </lable> 
 </div> 
 <div class = "col-md -6 " > 
 <input type = " number " name = " min_unit_load " t-attf-class = " form-control " 
t-attf-value = " student_id.min_unit_load " />  </ div>  <div class = 

"col-md-6 mt16" > 
 <lable for = "max_unit_load" > Maximum Unit Load: </lable> 
 </div> 
 <div class = "col-md-6 mt8" > 
 <input type = "number" name = "max_unit_load" t-attf-class = "form-control" 
t-attf-value = "student_id.max_unit_load" />  </div>  </div>  </div> <div class = "mt32" /> 




 <div t-if = "user_id.sudo (). is_student" class = "row col-md-12" > 
 <div class = "col-md-2 mt8" > 
 <lable for = "compulsory_subject_ids" > Compulsory Subjects: </lable> 
 </div> 
 <div class = "col-md-10" style = "padding-left: 5px;" > 
 <select class = "form-control js-example-basic-multiple subjects" 
name = " required = "1" > 
 <t t-foreach = "subjects or []" t-as = "subject" > 
 <t t-if = "subject.subject_type == 'compulsory'" > 
 <option t-att-value = "subject.id" > 
 <t t-esc = "subject.name" /> 
 </option> 
 </t> 
 </t>
 </select> 
 </div>
 </div> 
 <div t-if = "user_id.sudo (). is_student" class = "row mt8 col-md-12" > 
 <div class = "col-md-2 mt8" > 
 <lable for = "elective_subject_ids " > Elective Subjects: </lable> 
 </div> 
 <div class = " col-md-10 " style = " padding-left: 5px; " > 
 <select class = "
 multiple = "True" required = "1" > 
 <t t-foreach = "subjects or []" t-as = "subject" > 
 <t t-if = "subject.subject_type == 'elective'" > 
 <option t-att-value = "subject.id" > 
 <t t-esc = "subject.name" /> 
 </option> 
 </t>
 </t> 
 </select>
 </div> 
 </div> 
 <div class = "clearfix mb16 mt16 row col-md-12" > 
 <div class = "col-md-4" > 
 <button type = "submit" class = "btn btn-primary " >
  SUBMIT 
<span class = " fa fa-long-arrow-right " /> 
 </button> 
 </div> 
 </div> 
 </form> 
 </div> 
 </ div> 
 </t> 
</template>

controller.py

@ http.route ( '/ subject / registration / create /' , type = 'http' , auth = 'public' , website = True ) 
def subject_registration ( self , ** kw ): 
    students = request.env [ 'op. student ' ] .sudo (). search ([( ' user_id ' , ' = ' , request.session.uid)]) 
    for student in students: 
        student_id = request.env [ ' op.subject.registration ' ] .sudo ( ) .search ([( 'student_id','=' , student.name)]) 
        course = request.env [ 'op.course' ] .sudo (). search ([]) 
        subjects = request.env [ 'op.subject' ] .sudo (). search ([]) 
        values ​​= { 
            'student_id' : student_id , 
'course' : course , 'subjects' : subjects , } return request.render ( "portal_student.openeducat_create_subject_registration" , values)  




please help me i dont know odoo's javascript please check my script and please let me know the issue thanks in advance