We have Student Model. The Student Model hasMany relationship with Grade Model

Here are columns:

Student – id, level, name, status

Grade – id, student_id, subject, grade, status

Basically what I’m trying to do is query all the first level students that took math1 subject and sort it with grades

Here is my code so far:

$r = Student::where("level", 1)
           ->whereRelation('grades', 'subject', 'math1')
           ->get();

This works on filtering the first level students with math1 subject but my question is how can i sort base on relatioship grade column?

Thanks in advance.