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A simple class based permission backend for django

Project description

Really simple permission backend for django

Class based, No database

Inspired by [django-permission](

Tested with Django 1.10 - python 3.5

# Introduction

The app autodiscover module in your project's apps.

This modules should register PermissionLogic based class.

When calling django's has_perm method, it will run the corresponding method name in your PermissionLogic class.

See usage section below for comprehensive example.

# Usage


# ...
'simple_perms', # Add simple_perms app to your INSTALLED_APPS
# ...

'simple_perms.PermissionBackend', # Add permission backend before django's one


from simple_perms import register, PermissionLogic

class ProjectLogic(PermissionLogic):

def add_project(self, user, project, perm):
return True

def change_project(self, user, project, perm):
return user.is_admin() or project.owner == user

delete_project = change_project

def default_permission(self, user, project, perm):
# Optional, default to global default permission, which default to False
return user.is_admin()

register('project_app', ProjectLogic)

user1.has_perm('project_app.add_project') # True
user1.has_perm('project_app.change_project', user1_project) # True
user1.has_perm('project_app.delete_project', user1_project) # True
user2.has_perm('project_app.change_project', user1_project) # False
admin.has_perm('project_app.change_project', user1_project) # True

# Default permission

If a checked permission doesn't exists in registered PermissionLogic based classe, the backend will run the default_permission method of this class. If no default_permission defined, it default to the global default permission which default to False.

**Change global default permission**



def custom_global_default_permission(user, obj, perm):
return user.is_admin()

global_default_permission and default_permission have the same arguments as others permissions : `(user, obj, perm)`

# Change autodiscovered module name

simple_perms autodiscover modules in every django's apps. You can change the module name to autodiscover using the SIMPLE_PERMS_MODULE_NAME setting :


# Run tests


Project details

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