mirror of https://github.com/jumpserver/jumpserver
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
589 B
24 lines
589 B
# -*- coding: utf-8 -*- |
|
# |
|
from django.db import transaction |
|
|
|
|
|
def on_transaction_commit(func): |
|
""" |
|
如果不调用on_commit, 对象创建时添加多对多字段值失败 |
|
""" |
|
def inner(*args, **kwargs): |
|
transaction.on_commit(lambda: func(*args, **kwargs)) |
|
return inner |
|
|
|
|
|
class Singleton(object): |
|
""" 单例类 """ |
|
def __init__(self, cls): |
|
self._cls = cls |
|
self._instance = {} |
|
|
|
def __call__(self): |
|
if self._cls not in self._instance: |
|
self._instance[self._cls] = self._cls() |
|
return self._instance[self._cls]
|
|
|