.. image:: https://github.com/makinacorpus/django-safedelete/workflows/Python%20application/badge.svg :target: https://github.com/makinacorpus/django-safedelete/actions?query=workflow%3A%22Python+application%22
.. image:: https://img.shields.io/pypi/dm/django-safedelete.svg :target: https://pypi.python.org/pypi/django-safedelete
.. image:: https://coveralls.io/repos/makinacorpus/django-safedelete/badge.png :target: https://coveralls.io/r/makinacorpus/django-safedelete
For various reasons, you may want to avoid deleting objects from your database.
This Django application provides an abstract model, that allows you to transparently retrieve or delete your objects, without having them deleted from your database.
You can choose what happens when you delete an object :
.. code-block:: python
# imports
from safedelete.models import SafeDeleteModel
from safedelete.models import HARD_DELETE_NOCASCADE
# Models
# We create a new model, with the given policy : Objects will be hard-deleted, or soft deleted if other objects would have been deleted too.
class Article(SafeDeleteModel):
_safedelete_policy = HARD_DELETE_NOCASCADE
name = models.CharField(max_length=100)
class Order(SafeDeleteModel):
_safedelete_policy = HARD_DELETE_NOCASCADE
name = models.CharField(max_length=100)
articles = models.ManyToManyField(Article)
# Example of use
>>> article1 = Article(name='article1')
>>> article1.save()
>>> article2 = Article(name='article2')
>>> article2.save()
>>> order = Order(name='order')
>>> order.save()
>>> order.articles.add(article1)
# This article will be masked, but not deleted from the database as it is still referenced in an order.
>>> article1.delete()
# This article will be deleted from the database.
>>> article2.delete()
Current branch (1.3.x) is tested with :
Installing from pypi (using pip). ::
pip install django-safedelete
Installing from github. ::
pip install -e git://github.com/makinacorpus/django-safedelete.git#egg=django-safedelete
Add safedelete
in your INSTALLED_APPS
:
.. code-block:: python
INSTALLED_APPS = [
'safedelete',
[...]
]
The application doesn't have any special requirement.
In the main django settings you can activate the boolean variable SAFE_DELETE_INTERPRET_UNDELETED_OBJECTS_AS_CREATED
.
If you do this the update_or_create()
function from django's standard manager class will return True
for
the created
variable if the object was soft-deleted and is now "revived".
By default, the field that indicates a database entry is soft-deleted is deleted
, however, you can override the field name
using the SAFE_DELETE_FIELD_NAME
setting.
The documentation is available here <http://django-safedelete.readthedocs.org>
_. Generate your own documentation using:
tox -e docs
Please see the LICENSE file.
Please see the AUTHORS file.
.. image:: https://drupal.org/files/imagecache/grid-3/Logo_slogan_300dpi.png :target: http://www.makina-corpus.com