README.py - master - Zero1l/12

# 12

python manage.py migrate

python manage.py loaddata school.json

python

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

class Student(models.Model):
    name = models.CharField(max_length=100)
    teacher = models.ForeignKey(Teacher, on_delete=models.CASCADE)

python

class Student(models.Model):
    name = models.CharField(max_length=100)
    teachers = models.ManyToManyField(Teacher, related_name='students')

bash

python manage.py makemigrations

bash

python manage.py migrate

django

{% for teacher in student.teachers.all %}
    <p>{{ teacher.name }}: {{ teacher.subject }}</p>
{% endfor %}

python

students = Student.objects.prefetch_related('teachers').all()