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Base Django model to add access control, via groups, to objects.

Project description

What it does

django-group-access restricts access to records based on group membership. It does not manage finer grained permissions such as editing or deleting. If a user has access to a record, they have all permissions as defined by the django auth permissions.


Add ‘django_group_access’ to your INSTALLED_APPS in

Integration and use

Example: Installing to a single model and restricting access in a view

from django.db import models from django_group_access import registration

class MyModel(models.Model):
name = models.CharField(max_length=24)


MyModel will gain access_groups which is a ManyToManyField containing the groups that have access to each record.

MyModel will also gain ‘owner’ which is a ForeignKey to django.contrib.auth.models.User and is used to determine ownership of the record. To not use and ‘owner’ field, pass:


to the call to register().

def my_view(request):
records = MyModel.objects.accessible_by_user(request.user)

All related fields and reverse relationships for model instances in records will be filtered for the same user automatically.

Access to “parent” records can be determined by access the user has to “child” records. In the following example, if you have access to a Room you have access to the House it appears in.

from django.db import models from django_group_access import registration

class House(models.Model):
address = models.CharField(max_length=128)
class Room(models.Model):
house = models.ForeignKey(House) name = models.CharField(max_length=32)

registration.register(Room) registration.register(House, control_relation=’room’)

houses = House.objects.accessible_by_user(user_object)

The group model used for access control is AccessGroup. This is separate from the django auth Group for flexbility.

Sharing records

obj = MyModel.objects.accessible_by_user(user_object)[0]

group_i_want_to_share_with = AccessGroup.objects.get(name=’Friends’)


obj would then become visible to members of the ‘Friends’ AccessGroup.

For ease of sharing data between groups, AccessGroup has a property called auto_share_groups. This is a list of AccessGroups that records owned by the group will automatically be shared with.

Public record mode

If you want to have all data public by default, and use the access groups to restrict access to individual records add the following to


Automatically restricting based on logged in user

Add ‘django_group_access.middleware.DjangoGroupAccessMiddleware’ to the MIDDLEWARE_CLASSES in All access controlled models will be filtered based on the currently logged in user, meaning you do not have to call ‘accessible_by_user’ in your code. Anonymous users will see no records.

The middleware must be come after the AuthenticationMiddleware in the list of MIDDLEWARE_CLASSES.

Registering a model with ‘auto_filter=False’ will stop the automatic filtering for that model, meaning you will have to do it manually using ‘accessible_by_user’ in your code.

Access to unrestricted records

Registering a model with the option ‘unrestricted_manager=”manager_name”’ will create a manager on that model with unrestricted access to all records, even if you are using the automatic restriction based on the logged in user.


registration.register(MyModel, unrestricted_manager=’all_objects’)

all_records = MyModel.all_objects.all()

Project details

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