django-clone

import os from django.db import models from django_clone import clone_instance # Minimal Django setup for runnable example os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings') import django django.setup() class Author(models.Model): name = models.CharField(max_length=100) def __str__(self): return self.name class Book(models.Model): title = models.CharField(max_length=100) isbn = models.CharField(max_length=13, unique=True, null=True, blank=True) description = models.TextField(blank=True) author = models.ForeignKey(Author, on_delete=models.CASCADE, related_name='books') def __str__(self): return self.title # Create some initial instances author1 = Author.objects.create(name="Jane Doe") original_book = Book.objects.create( title="The Original Story", isbn="1234567890123", description="A timeless classic.", author=author1 ) # Clone the book instance, providing a new unique ISBN cloned_book = clone_instance(original_book, attrs={'isbn': '9876543210987', 'title': 'The Cloned Story'}) print(f"Original Book: {original_book.title} (ISBN: {original_book.isbn}, Author: {original_book.author.name})") print(f"Cloned Book: {cloned_book.title} (ISBN: {cloned_book.isbn}, Author: {cloned_book.author.name})")