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Description:

guardrail 0.1.1

guardrail is a Python library for managing object-level permissions that’s
designed to integrate with arbitrary databases and web frameworks. guardrail
is inspired by django-guardian
and currently supports the SQLAlchemy, Peewee, Pony, and Django ORMs.
Homepage: https://guardrail.readthedocs.org/

Install
pip install guardrail
guardrail supports Python >= 2.7 or >= 3.3 and pypy.

Examples
Define your models as usual, using the registry.agent and registry.target
decorators to set up permissions relationships:
import peewee as pw

from guardrail.core import registry
from guardrail.ext.peewee import PeeweePermissionSchemaFactory

database = pw.SqliteDatabase(':memory:')
class Base(pw.Model):
class Meta:
database = database

@registry.agent
class User(Base):
name = pw.CharField()

@registry.target
class Post(Base):
name = pw.CharField()

@registry.target
class Comment(Base):
name = pw.CharField()

factory = PeeweePermissionSchemaFactory((Base, ))
registry.make_schemas(factory)

database.connect()
database.create_tables([User, Post, Comment], safe=True)
database.create_tables(registry.permissions, safe=True)
Then use the permission manager to perform CRUD operations on permissions
between any agent and target models:
from guardrail.ext.peewee import PeeweePermissionManager

manager = PeeweePermissionManager()

user = User.create(name='fred')
post = Post.create(name='news of the world')
comment = Comment.create(name='dragon attack')

manager.add_permission(user, post, 'edit')
manager.add_permission(user, comment, 'delete')

manager.has_permission(user, post, 'edit') # True

manager.remove_permission(user, comment, 'delete')

manager.has_permission(user, comment, 'delete') # False

Project Links

PyPI: https://pypi.python.org/pypi/guardrail
Issues: https://github.com/jmcarp/guardrail/issues

License
MIT licensed. See the LICENSE
file for details.