text: from django.db import models
  from django.contrib.auth.models import User
  from cereal.models import Cereal
  
  
  # Create your models here.
  class Cart(models.Model):
      user = models.ForeignKey(User, on_delete=models.DO_NOTHING)
      cereal = models.ForeignKey(Cereal, on_delete=models.DO_NOTHING)
      quantity = models.DecimalField(max_digits=3, decimal_places = 0)
      def __str__(self):
          return str(self.cereal.id)
  