from django.db import models class BookLink(models.Model): old_id = models.IntegerField(db_index=True) new_uid = models.UUIDField() class MovieLink(models.Model): old_id = models.IntegerField(db_index=True) new_uid = models.UUIDField() class AlbumLink(models.Model): old_id = models.IntegerField(db_index=True) new_uid = models.UUIDField() class GameLink(models.Model): old_id = models.IntegerField(db_index=True) new_uid = models.UUIDField()