Package: django-object-permission
django-object-permissionoapply object permission feature to Django modelsInstallsudo pip install django-object-permissionor:sudo pip install git+git://github.com/lambdalisue/django-object-permission.git#egg=django-object-permissionHow to UseAppend ‘object_permission’ toINSTALLED_APPSAppend ‘object_permission.backends.ObjectPermBackend’ toAUTHENTICATION_BACKENDSAdd ‘ophandler.py’ to your app directory like ‘admin.py’Write model specific ObjectPermHandler and register it with model toobject_permission.siteSeeobject_permission_testfor more detail. If you want to see Old-style storategy, seeREADME_old.rstorobject_permission_test_deprecatedExample mini blog appmodels.py:from django.db import models
from django.contrib.auth.models import User

# django-author: useful for adding automatically update author field
from author.decorators import with_author

@with_author
class Entry(models.Model):
        PUB_STATES = (
                ('public', 'public entry'),
                ('protected', 'login required'),
                ('private', 'secret entry'),
        )
        pub_state = models.CharField('publish status', choices=PUB_STATES)
        title = models.CharField('title', max_length=140)
        body = models.TextField('body')

        # ...ophandler.py:from object_permission import site
# AuthorObjectPermHandler need 'django-observer' and required 'author'
# field (the author field is automatically added by 'with_author' decorator)
from object_permission.handlers import ObjectPermHandler

from models import Entry

class EntryObjectPermHandler(ObjectPermHandler):
    """ObjectPermHandler for model which has author field

    This handler contribute..

        1.  Manager permission to instance author
        2.  Viewer permission to authenticated user
        3.  Viewer permission to anonymous user if reject_anonymous is False

    """
    author_field = 'author'
    reject_anonymous = False

    def get_author(self):
        """get author field value"""
        return getattr(self.instance, self.author_field)

    def setup(self):
        # watch author field
        self.watch(self.author_field)

    def updated(self, attr):
        # Author has full access
        self.manager(self.get_author())
        # Authenticated user can view
        self.viewer(None)
        if self.reject_anonymous:
            self.reject('anonymous')
        else:
            self.viewer('anonymous')
# Register to object_permission site like django.contrib.admin
site.register(Entry, EntryObjectPermHandler)views.py:from django.views.generic import ListView
from django.views.generic import DetailView
from django.views.generic import CreateView
from django.views.generic import UpdateView
from django.views.generic import DeleteView
from django.core.urlresolvers import reverse

from object_permission.decorators import permission_required

from models import Entry
from forms import EntryForm

class EntryListView(ListView):
    model = Entry

class EntryDetailView(DetailView):
    model = Entry
    slug_field = 'title'

    # decorate 'dispatch' method without method_decorator
    @permission_required('blog.view_entry')
    def dispatch(self, *args, **kwargs):
        return super(EntryDetailView, self).dispatch(*args, **kwargs)

# You can use the decorator as View class decorator
# Then automatically decorate 'dispatch' method of the View
@permission_required('blog.add_entry')
class EntryCreateView(CreateView):
    form_class = EntryForm
    model = Entry

@permission_required('blog.change_entry')
class EntryUpdateView(UpdateView):
    form_class = EntryForm
    model = Entry

@permission_required('blog.delete_entry')
class EntryDeleteView(DeleteView):
    model = Entry
    def get_success_url(self):
        return reverse('blog-entry-list')index.html:{% load object_permission_tags %}
<html>
<head>
        <title>django-object-permission example</title>
</head>
<body>
        {% pif 'blog.add_entry' of None or 'blog.change_entry' of object or 'blog.delete_entry' of object %}
        <!-- displayed only user who has `blog.add_entry` permission,
                `blog.change_entry` permision for object or
                `blog.delete_entry` permission for object -->
                <h2>Toolbox</h2>
                {% pif 'blog.add_entry' of object %}
                        <!-- displayed only user who has `blog.add_entry` permission -->
                        <a href="{% url 'blog-entry-create' %}">Add New Entry</a>
                {% endpif %}
                {% pif object and 'blog.change_entry' of object %}
                        <!-- displayed only user who has `blog.change_entry` permission for object -->
                        <a href="{% url 'blog-entry-update' object.pk %}">Change this entry</a>
                {% endpif %}
                {% pif object and 'blog.delete_entry' of object %}
                        <!-- displayed only user who has `blog.delete_entry` permission for object -->
                        <a href="{% url 'blog-entry-delete' object.pk %}">Delete this entry</a>
                {% endpif%}
        {% endpif %}
</body>
</html>SettingsOBJECT_PERMISSION_EXTRA_DEFAULT_PERMISSIONSA list of extra default permission for all models. Django contribute
‘add’, ‘change’ and ‘delete’ permission for all models as default.Default:['view']OBJECT_PERMISSION_BUILTIN_TEMPLATETAGSIf this is True, thenpifwill be builtin templatetags which mean you don’t
need to add{% load object_permission_tags %}before usepiftag.Default:TrueOBJECT_PERMISSION_AUTODISCOVERTo enable autodiscover feature. object permission automatically search ‘ophandler’
(orOBJECT_PERMISSION_HANDLER_MODULE_NAME) module for each apps and load.Default:TrueOBJECT_PERMISSION_HANDLER_MODULE_NAMEUsed for searching object permission handler module for each apps.Default:'ophandler'OBJECT_PERMISSION_DEPRECATEDIf this is True then all deprecated feature is loaded. You should not turnd on
this unless your project is too large to do refactaring because deprecated feature
is no longer supported and limited.will removed in version 0.5OBJECT_PERMISSION_MODIFY_FUNCTION(deprecated)set the name of function when object is saved for modify object permission for the object.
the default value ismodify_object_permissionOBJECT_PERMISSION_MODIFY_M2M_FUNCTION(deprecated)set the name of function when object’s ManyToMany relation is updated for modify object permission
for the object. the default value ismodify_object_permission_m2m