How can i get selected value in user update form?

Using Django
5

My views.py:

class UserEdit(PermissionRequiredMixin, AjaxUpdateView):
    model = User
    form_class = EditUserForm
    context_object_name = 'user'
    ajax_template_name = 'modal_form.html'
    ajax_form_title = 'Edit User'
    permission_required = ('users.edit_users',)

    def get_data(self):
        return {
            'info': 'Edited user information',
        }

    def post(self, request, *args, **kwargs):
        form_data = self.get_form_kwargs()['data']
        job_role_id = form_data.get('job_role', 0)
        job_role_id = 0 if job_role_id == '' else job_role_id
        job_role = Group.objects.filter(id=int(job_role_id)).first()
        user = self.get_object()
        if job_role:
            user.groups.add(job_role)
        return super(UserEdit, self).post(request, args, kwargs)