jumpserver/apps/assets/models/tree.py

61 lines
1.7 KiB
Python

# -*- coding: utf-8 -*-
#
import uuid
from django.db import models
from django.utils.translation import ugettext_lazy as _
__all__ = ['Node']
class Node(models.Model):
id = models.UUIDField(default=uuid.uuid4, primary_key=True)
key = models.CharField(unique=True, max_length=64, verbose_name=_("Key")) # '1:1:1:1'
value = models.CharField(max_length=128, unique=True, verbose_name=_("Value"))
child_mark = models.IntegerField(default=0)
date_create = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.value
@property
def level(self):
return len(self.key.split(':'))
def get_next_child_key(self):
mark = self.child_mark
self.child_mark += 1
self.save()
return "{}:{}".format(self.key, mark)
def create_child(self, value):
child_key = self.get_next_child_key()
child = self.__class__.objects.create(key=child_key, value=value)
return child
def get_children(self):
return self.__class__.objects.filter(key__regex=r'{}:[0-9]+$'.format(self.key))
def get_all_children(self):
return self.__class__.objects.filter(key__startswith='{}:'.format(self.key))
def get_assets(self):
from .asset import Asset
children = self.get_children()
assets = Asset.objects.filter(nodes__in=children)
return assets
def get_all_assets(self):
from .asset import Asset
children = self.get_all_children()
assets = Asset.objects.filter(nodes__in=children)
return assets
@classmethod
def root(cls):
obj, created = cls.objects.get_or_create(
key='0', defaults={"key": '0', 'value': "ROOT"}
)
return obj