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rest_condition

Complex permissions flow for django-rest-framework (http://django-rest-framework.org).

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rest_condition

Complex permissions flow for django-rest-framework_.

Installation

The easiest way to install the latest version is by using pip/easy_install to pull it from PyPI:

::

pip install rest_condition

You may also use Git to clone the repository from Github and install it manually:

::

git clone https://github.com/caxap/rest_condition.git
python setup.py install

Example

.. code:: python

from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.permissions import BasePermission
from rest_condition import ConditionalPermission, C, And, Or, Not


class Perm1(BasePermission):

   def has_permission(self, request, view):
        # You permissions check here
        return True


class Perm2(BasePermission):

   def has_permission(self, request, view):
        # You permissions check here
        return False


# Example of possible expressions
expr1 = Or(Perm1, Perm2)  # same as: C(Perm1) | Perm2
expr2 = And(Perm1, Perm2)  # same as: C(Perm1) & Perm2
expr3 = Not(Perm1)  # same as: ~C(Perm1)
expr4 = And(Not(Perm1), Or(Perm1, Not(Perm2)))  # same as: ~C(Perm1) & (C(Perm1) | ~C(Perm2))

# Using expressions in API views
class ExampleView(APIView):
    permission_classes = [Or(And(Perm1, Perm2), Not(Perm2)), ]
    # Or just simple:
    # permission_classes = [C(Perm1) & Perm2 | ~C(Perm2), ]

    def get(self, request, format=None):
        content = {'status': 'request was permitted'}
        return Response(content)


class OtherExampleView(ExampleView):
    # Using ConditionalPermission class
    permission_classes = [ConditionalPermission, ]
    permission_condition = (C(Perm1) & Perm2) | (~C(Perm1) & ~C(Perm2))

License

The MIT License (MIT)

Contributed by Max Kamenkov_

.. _django-rest-framework: http://django-rest-framework.org/ .. _Maxim Kamenkov: https://github.com/caxap/

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