Set different foreign key value in django inline formset initially

Question

I am trying to make a result management system using django. And for storing the subjects marks, I am using the django inline formset. The problem is that the user have to select a subject manually from dropdown which is Select Field in django and I think this will not be a good choice to do. So I decided to set the SelectField initially to those foreign field. But the initial value is always set to the last object of the Subject model.

def subject_mark_create(request, grade_pk, exam_pk):
    subjects =  Subject.objects.get_by_grade(grade_pk).order_by('name')
    SubjectMarkFormset = inlineformset_factory(Exam, SubjectMark,  extra=subjects.count(), max_num=subjects.count(), fk_name='exam', form=SubjectMarkForm, can_delete=False)
    exam = get_object_or_404(Exam, pk=exam_pk)
    if request.method == "GET":
        formset = SubjectMarkFormset(instance=exam)
        for form in formset:
            for subject in subjects:
                form['subject'].initial = subject

My Current inlineformset

What I desired my formset should look like

Answer 1

Below code will help you to keep the initial value of subject field of form to a subject object

def subject_mark_create(request, grade_pk, exam_pk):
    subjects =  Subject.objects.get_by_grade(grade_pk).order_by('name')
    SubjectMarkFormset = inlineformset_factory(Exam, SubjectMark,  extra=subjects.count(), max_num=subjects.count(), fk_name='exam', form=SubjectMarkForm, can_delete=False)
    exam = get_object_or_404(Exam, pk=exam_pk)
    if request.method == "GET":
        formset = SubjectMarkFormset(instance=exam)
        for index, form in enumerate(formset):
            form['subject'].initial = subjects[index]