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Project Description

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

License

MIT licensed. See the LICENSE file for details.

Release History

Release History

0.1.1

This version

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0.1.0

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
guardrail-0.1.1.macosx-10.5-x86_64.tar.gz (25.0 kB) Copy SHA256 Checksum SHA256 any Dumb Binary Apr 5, 2015
guardrail-0.1.1.tar.gz (12.9 kB) Copy SHA256 Checksum SHA256 Source Apr 5, 2015

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