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Implementation of per object permissions for Django.

Project Description

django-guardian is an implementation of per object permissions [1] on top of Django’s authorization backend

Documentation

Online documentation is available at https://django-guardian.readthedocs.io/.

Requirements

  • Python 2.7 or 3.4+
  • A supported version of Django (currently 1.8+)

Travis CI tests on Django version 1.8, 1.10, and 1.11.

Installation

To install django-guardian simply run:

pip install django-guardian

Configuration

We need to hook django-guardian into our project.

  1. Put guardian into your INSTALLED_APPS at settings module:
INSTALLED_APPS = (
 ...
 'guardian',
)
  1. Add extra authorization backend to your settings.py:
AUTHENTICATION_BACKENDS = (
    'django.contrib.auth.backends.ModelBackend', # default
    'guardian.backends.ObjectPermissionBackend',
)
  1. Create guardian database tables by running:

    python manage.py migrate
    

Usage

After installation and project hooks we can finally use object permissions with Django.

Lets start really quickly:

>>> from django.contrib.auth.models import User, Group
>>> jack = User.objects.create_user('jack', 'jack@example.com', 'topsecretagentjack')
>>> admins = Group.objects.create(name='admins')
>>> jack.has_perm('change_group', admins)
False
>>> from guardian.models import UserObjectPermission
>>> UserObjectPermission.objects.assign_perm('change_group', jack, obj=admins)
<UserObjectPermission: admins | jack | change_group>
>>> jack.has_perm('change_group', admins)
True

Of course our agent jack here would not be able to change_group globally:

>>> jack.has_perm('change_group')
False

Admin integration

Replace admin.ModelAdmin with GuardedModelAdmin for those models which should have object permissions support within admin panel.

For example:

from django.contrib import admin
from myapp.models import Author
from guardian.admin import GuardedModelAdmin

# Old way:
#class AuthorAdmin(admin.ModelAdmin):
#    pass

# With object permissions support
class AuthorAdmin(GuardedModelAdmin):
    pass

admin.site.register(Author, AuthorAdmin)
[1]Great paper about this feature is available at djangoadvent articles.
Release History

Release History

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
django_guardian-1.4.8-py2.py3-none-any.whl (95.8 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Apr 4, 2017
django-guardian-1.4.8.tar.gz (151.8 kB) Copy SHA256 Checksum SHA256 Source Apr 4, 2017

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