def get_booking(f=None):
print "Calling get_booking Decorator"
def wrapper(request, **kwargs):
booking = _get_booking_from_session(request)
if booking == None:
# we don't have a booking in our session.
return HttpRedirect('/')
else:
return f(request=request, booking=booking, **kwargs)
return wrapper
@get_booking
def do_stuff(request, booking):
# do stuff here
我遇到的问题是,在@get_booking装饰正在我之前也叫,我装饰功能调用。
输出的开始:
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
Calling get_booking Decorator
[26/Oct/2008 19:54:04] "GET /onlinebooking/?id=1,2 HTTP/1.1" 302 0
[26/Oct/2008 19:54:05] "GET /onlinebooking/ HTTP/1.1" 200 2300
[26/Oct/2008 19:54:05] "GET /site-media/css/style.css HTTP/1.1" 200 800
[26/Oct/2008 19:54:05] "GET /site-media/css/jquery-ui-themeroller.css HTTP/1.1" 200 25492
我还没有还送被装饰在这一点上的函数的调用。
我刚刚开始与装饰,所以也许我失去了一些东西。任何帮助?
要直接回答问题标题,请在装饰函数**之前运行装饰器。不,它在声明函数时不运行。它在函数为_called_时运行。我希望这有帮助。 – Jess 2016-10-27 14:50:35