#Upload model referring to the User model through many-to-one relationship.

class Upload(models.Model):
    image = models.ImageField()
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)

#Creating the user
user = User.objects.create_user(username, email, password)
        user.first_name = first_name
        user.last_name = last_name
        user.save()

#Creating the upload
f = open(f.path, 'r')
file = File(f)
upload = Upload(file, this_user)
upload.save()