在Django中创建条件多对多关系

from django.db import models

class Student(models.Model):
    name = models.CharField(max_length=100)
    courses = models.ManyToManyField('Course')

class Course(models.Model):
    name = models.CharField(max_length=100)

python manage.py makemigrations
python manage.py migrate

from django.shortcuts import render
from .models import Student

def student_courses(request, student_id):
    student = Student.objects.get(id=student_id)
    courses = student.courses.all()
    return render(request, 'courses.html', {'courses': courses})