How to use filtering data while using distinct method in django?

Question

please help me on my problem I hope my title is enough to understand what I mean, please help me on this problem guys.

When I tried this:

id_list = g         


        

Answer 1

This is the best I can do for you. I think you should be selected based on the student and filtering the grades to the teacher. I also did a prefetch for all of the subjects since I can't quite tell what you need done there.

students = Student.objects.filter(
    grades__teacher_id=teacher.id,
).annotate(
    total_avg=Avg('grades__Average')
).prefetch_related('grades__Subjects')

Template:

{% for student in students %}
      
          {{teacher}}
          {{student.grades.subjects.all}}
          {{student}}
          {{student.total_avg}}
      
{% endfor %}