old_contents: from django.db import models
  
  # Create your models here.
  
new_contents: from django.db import models
  
  
  ORDER_CHOICES = (
      ('awaiting_payment', 'awaiting payment'),
      ('paid', 'paid'),
      ('expired', 'expired'),
      ('cancelled', 'cancelled'),
  )
  
  
  class Order(models.Model):
      price = models.DecimalField()
      discount = models.IntegerField()
      status = models.CharField(choices=ORDER_CHOICES, max_length=256)
      purchase_date = models.DateTimeField()
      payment_date = models.DateTimeField()
  
subject: Add model Order