from __future__ import unicode_literals, absolute_import import functools from django.db import models from django.utils.translation import ugettext_lazy as _ from django.utils import timezone from users.models import User, UserGroup from assets.models import Asset, AssetGroup, SystemUser from common.utils import date_expired_default, combine_seq class AssetPermission(models.Model): # PRIVATE_FOR_CHOICE = ( # ('N', 'None'), # ('U', 'user'), # ('G', 'user group'), # ) name = models.CharField(max_length=128, unique=True, verbose_name=_('Name')) users = models.ManyToManyField(User, related_name='asset_permissions', blank=True) user_groups = models.ManyToManyField(UserGroup, related_name='asset_permissions', blank=True) assets = models.ManyToManyField(Asset, related_name='granted_by_permissions', blank=True) asset_groups = models.ManyToManyField(AssetGroup, related_name='granted_by_permissions', blank=True) system_users = models.ManyToManyField(SystemUser, related_name='granted_by_permissions') # private_for = models.CharField(choices=PRIVATE_FOR_CHOICE, max_length=1, default='N', blank=True, # verbose_name=_('Private for')) is_active = models.BooleanField(default=True, verbose_name=_('Active')) date_expired = models.DateTimeField(default=date_expired_default, verbose_name=_('Date expired')) created_by = models.CharField(max_length=128, blank=True, verbose_name=_('Created by')) date_created = models.DateTimeField(auto_now_add=True, verbose_name=_('Date created')) comment = models.TextField(verbose_name=_('Comment'), blank=True) def __unicode__(self): return self.name @property def is_valid(self): if self.date_expired < timezone.now() and self.is_active: return True return True def get_granted_users(self): return list(set(self.users.all()) | self.get_granted_user_groups_member()) def get_granted_user_groups_member(self): users = set() for user_group in self.user_groups.all(): for user in user_group.users.all(): setattr(user, 'is_inherit_from_user_groups', True) setattr(user, 'inherit_from_user_groups', getattr(user, b'inherit_from_user_groups', set()).add(user_group)) users.add(user) return users def get_granted_assets(self): return list(set(self.assets.all()) | self.get_granted_asset_groups_member()) def get_granted_asset_groups_member(self): assets = set() for asset_group in self.asset_groups.all(): for asset in asset_group.assets.all(): setattr(asset, 'is_inherit_from_asset_groups', True) setattr(asset, 'inherit_from_asset_groups', getattr(asset, b'inherit_from_user_groups', set()).add(asset_group)) assets.add(asset) return assets class Meta: db_table = 'asset_permission'