[Zope-PTK] Access "top" object without passing it as argumentto method?

[Shane Hathaway]

Sigve Tjora wrote:
> 
> > Are you looking for "this()"?  If you added a parameter to the method,
> > you could call:
> >
> > <dtml-var "portal_yourtool.yourMethod(this())">
> >
> > Shane
> 
> I am looking for "this()", but I don't want to pass it explicit as an
> argument to the method. I want to use what "this()" refers to without
> having to pass it on as an argument to my method. Is this possible?

Reliably, no.  This will *usually* give what you want:

def mymethod(self):
    caller = self.aq_parent.aq_parent

But you'll notice that the CMF already uses the pattern I mentioned
before.  It is reliable and correct, though you may have to perform your
own security checks.

Shane