1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
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 django.db.models.signals import m2m_changed
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')
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, '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, 'inherit_from_user_groups', set()).add(asset_group))
assets.add(asset)
return assets
class Meta:
db_table = 'asset_permission'
# def change_permission(sender, **kwargs):
# print('Sender: %s' % sender)
# for k, v in kwargs.items():
# print('%s: %s' % (k, v))
# print()
#
# m2m_changed.connect(change_permission, sender=AssetPermission.assets.through)