Generated: Thu 2012-03-01 14:22 CST
Source file: /home/alisue/Dropbox/Codes/django-permission/permission/utils.py
Stats: 5 executed, 14 missed, 11 excluded, 61 ignored
# vim: set fileencoding=utf-8 :
"""
Utilities
AUTHOR:
lambdalisue[Ali su ae] (lambdalisue@hashnote.net)
License:
The MIT License (MIT)
Copyright (c) 2012 Alisue allright reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.
"""
from __future__ import with_statement
__all__ = ('get_permission_codename', 'autodiscover',)
def get_permission_codename(perm):
"""get permission codename from permission string
Usage:
>>> get_permission_codename(u"app_label.codename_model")
u"codename_model"
>>> get_permission_codename(u"app_label.codename")
u"codename"
>>> get_permission_codename(u"codename_model")
u"codename_model"
>>> get_permission_codename(u"codename")
u"codename"
>>> get_permission_codename(u"app_label.app_label.codename_model")
u"app_label.codename_model"
"""
try:
perm = perm.split('.', 1)[1]
except IndexError:
pass
return perm
def autodiscover(module_name=None):
"""
Auto-discover INSTALLED_APPS permissions.py modules and fail silently when
not present. This forces an import on them to register any permissions bits
they may want.
"""
import copy
from django.conf import settings
from django.utils.importlib import import_module
from django.utils.module_loading import module_has_submodule
from permission.handlers import registry
module_name = module_name or settings.PERMISSION_MODULE_NAME
for app in settings.INSTALLED_APPS:
mod = import_module(app)
# Attempt to import the app's permissions module
try:
before_import_registry = copy.copy(registry._registry)
import_module('%s.%s' % (app, module_name))
except:
# Reset the model registry to the state before tha last import as
# this import will have to reoccur on the next request and this
# could raise NotRegistered and AlreadyRegistered exceptions
# (see #8254)
registry._registry = before_import_registry
# Decide whether to bubble up this error. If the app just
# doesn't have an permissions module, we can ignore the error
# attempting to import it, otherwise we want it to bubble up.
if module_has_submodule(mod, module_name):
raise