import uuid from django.db import models from django.utils.translation import ugettext_lazy as _ from common.utils import lazyproperty, settings from common.tree import TreeNode class Organization(models.Model): id = models.UUIDField(default=uuid.uuid4, primary_key=True) name = models.CharField(max_length=128, unique=True, verbose_name=_("Name")) created_by = models.CharField(max_length=32, null=True, blank=True, verbose_name=_('Created by')) date_created = models.DateTimeField(auto_now_add=True, null=True, blank=True, verbose_name=_('Date created')) comment = models.TextField(default='', blank=True, verbose_name=_('Comment')) members = models.ManyToManyField( 'users.User', related_name='orgs', through='rbac.RoleBinding', through_fields=('org', 'user') ) ROOT_ID = '00000000-0000-0000-0000-000000000000' ROOT_NAME = _('GLOBAL') DEFAULT_ID = '00000000-0000-0000-0000-000000000002' DEFAULT_NAME = 'Default' orgs_mapping = None class Meta: verbose_name = _("Organization") permissions = ( ('view_rootorg', _('Can view root org')), ) def __str__(self): return str(self.name) @classmethod def get_instance(cls, id_or_name, default=None): assert default is None or isinstance(default, cls), ( '`default` must be None or `Organization` instance' ) org = cls.get_instance_from_memory(id_or_name) org = org or default return org @classmethod def get_instance_from_memory(cls, id_or_name): if not isinstance(cls.orgs_mapping, dict): cls.orgs_mapping = cls.construct_orgs_mapping() org = cls.orgs_mapping.get(str(id_or_name)) if not org: # 内存失效速度慢于读取速度(on_org_create_or_update) cls.orgs_mapping = cls.construct_orgs_mapping() org = cls.orgs_mapping.get(str(id_or_name)) return org @classmethod def construct_orgs_mapping(cls): orgs_mapping = {} for org in cls.objects.all(): orgs_mapping[str(org.id)] = org orgs_mapping[str(org.name)] = org root_org = cls.root() orgs_mapping.update({ root_org.id: root_org, 'GLOBAL': root_org, '全局组织': root_org }) return orgs_mapping @classmethod def expire_orgs_mapping(cls): cls.orgs_mapping = None def org_id(self): return self.id @classmethod def default(cls): defaults = dict(id=cls.DEFAULT_ID, name=cls.DEFAULT_NAME) obj, created = cls.objects.get_or_create(defaults=defaults, id=cls.DEFAULT_ID) return obj @classmethod def root(cls): name = settings.GLOBAL_ORG_DISPLAY_NAME or cls.ROOT_NAME return cls(id=cls.ROOT_ID, name=name) def is_root(self): return self.id == self.ROOT_ID def is_default(self): return str(self.id) == self.DEFAULT_ID def change_to(self): from .utils import set_current_org set_current_org(self) @lazyproperty def resource_statistics_cache(self): from .caches import OrgResourceStatisticsCache return OrgResourceStatisticsCache(self) def get_members(self): return self.members.all().distinct() def add_member(self, user, role=None): from rbac.builtin import BuiltinRole from .utils import tmp_to_org role_id = BuiltinRole.org_user.id if role: role_id = role.id with tmp_to_org(self): defaults = { 'user': user, 'role_id': role_id, 'org_id': self.id, 'scope': 'org' } self.members.through.objects.update_or_create(**defaults, defaults=defaults) def get_total_resources_amount(self): from django.apps import apps from orgs.mixins.models import OrgModelMixin summary = {'users.Members': self.get_members().count()} for app_name, app_config in apps.app_configs.items(): models_cls = app_config.get_models() for model in models_cls: if not issubclass(model, OrgModelMixin): continue key = '{}.{}'.format(app_name, model.__name__) summary[key] = self.get_resource_amount(model) return summary def get_resource_amount(self, resource_model): from .utils import tmp_to_org from .mixins.models import OrgModelMixin if not issubclass(resource_model, OrgModelMixin): return 0 with tmp_to_org(self): return resource_model.objects.all().count() def as_tree_node(self, oid, pid, opened=True): node = TreeNode(**{ 'id': oid, 'name': self.name, 'title': self.name, 'pId': pid, 'open': opened, 'isParent': True, 'meta': { 'type': 'org' } }) return node def delete_related_models(self): from orgs.utils import tmp_to_root_org from tickets.models import TicketFlow with tmp_to_root_org(): TicketFlow.objects.filter(org_id=self.id).delete() def delete(self, *args, **kwargs): self.delete_related_models() return super().delete(*args, **kwargs) # class OrgMemberManager(models.Manager): # def remove_users(self, org, users): # from users.models import User # pk_set = [] # for user in users: # if hasattr(user, 'pk'): # pk_set.append(user.pk) # else: # pk_set.append(user) # # send = partial( # signals.m2m_changed.send, sender=self.model, # instance=org, reverse=False, model=User, # pk_set=pk_set, using=self.db # ) # send(action="pre_remove") # self.filter(org_id=org.id, user_id__in=pk_set).delete() # send(action="post_remove") class OrganizationMember(models.Model): """ 注意：直接调用该 `Model.delete` `Model.objects.delete` 不会触发清理该用户的信号 """ id = models.UUIDField(default=uuid.uuid4, primary_key=True) org = models.ForeignKey( Organization, related_name='m2m_org_members', on_delete=models.CASCADE, verbose_name=_('Organization') ) user = models.ForeignKey( 'users.User', related_name='m2m_org_members', on_delete=models.CASCADE, verbose_name=_('User') ) role = models.CharField(max_length=16, default='User', verbose_name=_("Role")) date_created = models.DateTimeField(auto_now_add=True, verbose_name=_("Date created")) date_updated = models.DateTimeField(auto_now=True, verbose_name=_("Date updated")) created_by = models.CharField(max_length=128, null=True, verbose_name=_('Created by')) # objects = OrgMemberManager() class Meta: unique_together = [('org', 'user', 'role')] db_table = 'orgs_organization_members' def __str__(self): return '{} | {}'.format(self.user, self.org)