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django-modelclone-next

Allows users to duplicate a model in admin.

This is a fork of https://github.com/RealGeeks/django-modelclone

Installation

$ pip install django-modelclone-next

then:

  1. Add 'modelclone' to INSTALLED_APPS
  2. In your admin.py files extend from modelclone.ClonableModelAdmin instead of Django's ModelAdmin

The models that have admin configuration extending modelclone.ClonableModelAdmin will have a new link on the Change page to duplicate that object

Screenshot Duplicate link

This links redirects to a page similar to an Add page but with all the fields already filled with the values from the original object.

Note that you still need to save to get a new object. And make sure to edit fields that must be unique otherwise you will get a validation error.

But Django already has a 'save as'

Yes, I know. Django Admin has a save_as feature that adds a new button to your Change page to save a new instance of that object.

I don't like the way this feature works because you will save an identical copy of the original object (if you don't get validation errors) as soon as you click that link, and if you forget to make the small changes that you wanted in the new object you will end up with a duplicate of the existing object.

On the other hand, django-modelclone offers an intermediate view, that basically pre-fills the form for you. So you can modify and then save a new instance. Or just go away without side effects.

Requirements

  • Python 3
  • Django 3.2, 4.0 or 4.2

See tox.ini

Hacking

Fork the repository on github, make your changes (don't forget the tests) and send a pull request.

To run the tests, install and run Tox:

$ pip install tox
$ tox

You can also run the sample project to test manually. In this case you'll need to install Django, or just use one of the virtualenvs tox creates, for example:

$ source .tox/py312-django32/bin/activate

then start the server

(py312-django32) $ ./manager serve

The app is available on http://localhost:8000/admin/, username and password "admin".

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