1 def user_atomic(): 2 User.objects.create(name='purk1', email='pwu1@maxprocessing.com') 3 4 User.objects.create(user_id='purk2', name='purk2', email='pwu2@maxprocessing.com') 5 6 User.objects.create(name='purk3', email='pwu3@maxprocessing.com') 7 8 9 @transaction.atomic 10 def user_atomic_decorator(): 11 User.objects.create(name='purk1', email='pwu1@maxprocessing.com') 12 13 User.objects.create(user_id='purk2', name='purk2', email='pwu2@maxprocessing.com') 14 15 User.objects.create(name='purk3', email='pwu3@maxprocessing.com') 16 17 18 @transaction.atomic 19 def user_atomic_decorator_1(): 20 User.objects.create(name='purk1', email='pwu1@maxprocessing.com') 21 22 try: 23 with transaction.atomic(): 24 User.objects.create(user_id='purk2', name='purk2', email='pwu2@maxprocessing.com') 25 except Exception as e: 26 e 27 User.objects.create(name='purk3', email='pwu3@maxprocessing.com') 28 29 @transaction.atomic 30 def user_atomic_decorator_except(): 31 User.objects.create(name='purk1', email='pwu1@maxprocessing.com') 32 try: 33 User.objects.create(user_id='purk2', name='purk2', email='pwu2@maxprocessing.com') 34 except Exception as e: 35 e 36 User.objects.create(name='purk3', email='pwu3@maxprocessing.com')
user_id 为uuid类型，所以user_id='purk2'肯定会出错，
result:
在atomic中错误的使用try except则会抛出TransactionManagementError的异常，同时transaction失效了，没有正常回滚。
用atomic装饰之后，里面的结果就被回滚了，但是用try except包裹的atomic不会影响外层的transaction回滚