为什么我的Django视图装饰器没有将请求传递给它？

Question

I have a setup looking something like this:

def foo_decorator(function):
    @wraps(function)
    def decorator(*args, **kwargs):
        print kwargs
        return function(*args, **kwargs)

    return decorator

@foo_decorator
def analytics(request, page_id, promotion_id):
    pass

Outputting:

{'promotion_id': u'11','page_id': u'119766481432558'}

Why is my decorator not getting request passed to it?

Answer 1

request isn't a keyword argument to the view, it's the first positional argument. You can access it as args[0] .

def foo_decorator(function):
    @wraps(function)
    def decorator(*args, **kwargs):
        print args[0]
        return function(*args, **kwargs)

    return decorator

I would recommend that you change the function signature to include request explicitly:

def foo_decorator(function):
    @wraps(function)
    def decorator(request, *args, **kwargs):
        print request
        return function(request, *args, **kwargs)

    return decorator

Answer 2

The request is not passed as a keyword argument. It's in args , not kwargs .