Deletes old files.
django-cleanup automatically deletes files for
subclasses. It will delete old files when a new file is being saved and it will delete
files on model instance deletion.
Warning! If you are using a database that does not support transactions you may lose files if a transaction will rollback at the right instance. Though this outcome is reduced by our use of post_save and post_delete signals, this outcome will still occur if there are errors in signals that are handled after our signals are handled. In this case, the old file will be lost and the new file will not be referenced in a model, though the new file will likely still exist on disk. If you are concerned about this behavior you will need another solution for old file deletion in your project.
- Support for Django 1.11, 2.0, 2.1
- Python 2.7 and 3.4+ support
- Compatible with sorl-thumbnail and easy-thumbnail
How does it work?
FileField’s value is changed and the model is saved, the old file is deleted. When a
model that has a
FileField is deleted, the file is also deleted. If the
value matches the
FileField’s default value then the file will not be deleted.
post_delete signals to signal handlers for each model that has a
FileField and which
app is listed in
INSTALLED_APPS. In order to tell whether or not a
has changed a local cache of original values is kept on the model instance.
pip install django-cleanup
Add django_cleanup to settings.py
INSTALLED_APPS = ( ... 'django_cleanup.apps.CleanupConfig', )
django-cleanup sends the following signals which can be imported from
- cleanup_pre_delete just before a file is deleted. Passes a
- cleanup_post_delete just after a file is deleted. Passes a
Signals example for sorl.thumbnail
from django_cleanup.signals import cleanup_pre_delete, cleanup_post_delete def sorl_delete(**kwargs): from sorl.thumbnail import delete delete(kwargs['file']) cleanup_pre_delete.connect(sorl_delete)
Refresh the cache
Refresh the cleanup cache on the instance.
from django_cleanup import cleanup ... cleanup.refresh(instance) ...
How to run tests
How to write tests
This library requires the use of django.test.TransactionTestCase when writing tests.
For details on why this is required see here:
TestCaseclass wraps each test in a transaction and rolls back that transaction after each test, in order to provide test isolation. This means that no transaction is ever actually committed, thus your
on_commit()callbacks will never be run. If you need to test the results of an
on_commit()callback, use a
django-cleanup is free software under terms of the MIT License.
Copyright (C) 2012 by Ilya Shalyapin, email@example.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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