modelos_easy_chamadas.py

from django.db import models

# Create your models here.

class Subject(models.Model):
    name = models.CharField(max_length=40)
    hours = models.IntegerField()
    credits = models.IntegerField()


class Student(models.Model):
    name = models.CharField(max_length=55)
    id_subscription = models.IntegerField(primary_key=True)
    subject = models.ManyToManyField(Subject)

class Situation(models.Model):
    SITUACAO = (
    ('REP', 'Reprovado por falta'),
    ('ATV', 'Ativo'),
    )
    sit = models.CharField(max_length=30, choices=SITUACAO, default=ATV)