Python事务装饰器

py_transaction_decorator

# -*- coding: utf-8 -*-
def transactional():
     def transaction(func):
         def __decorator(obj,*args,**kwargs):
             try:
                 func(obj,*args,**kwargs)
                 print 'do commit'
                 obj.session.commit()
             except Exception,e:
                 obj.session.rollback()
             finally:
                 obj.session.close()
         return __decorator

     return transaction