[Zope] Get caller context

[Dragos Chirila]

Hi
Thanks for your answer.

I think that my example was too general. Actually, in my case, myMethod is
standard_html_header.
So in my folderish object, standard_html_header is a python method - why I
did this way?? it's a long story :)

Your solution was one of my choices: whenever I call standard_html_header
from other objects, to pass the object from where I make the call(like in
your example).
BUT, if I want to add other products instances in my folderish object and
these are calling the standard_html_header normally (e.g. <dtml-var
standard_html_header>) it will not work, because standard_html_header will
be rendered in my folderish object's context. And I cannot modify any
product that I use to make the call for standard_html_header with an extra
parameter(e.g. caller form your example).

I need a solution that will work in all cases, the call for
standard_html_header to be made wihtout any extra parameter and the
standard_html_header to be rendered in the context of the call.

Regards,
Dragos


> I'd pass the caller explicitly, eg.:
>
>
> in the Product:
>
> class MyClass(...):
>
>      def myMethod(self, caller=None, ...):
>          if caller is None: caller = self
>          # do stuff with caller, eg. get a property:
>          v = caller.some_property
>          # ...
>
>
>
> in folderMethod (ZPT):
>
> <span tal:replace="python:here.myObject(caller=container, ... )" />
>
>
>
>
> Dragos Chirila wrote:
> > Hi
> >
> > I want to identify the object from where the call is made.
> >
> > In my example the "caller" is the 'folder' object.
> >
> > Regards
> > Dragos
> >
> >
> >
> >>Please clarify: do you want to call the myMethod() method or are you
> >>talking of a HTTP Redirect?
> >>
> >>Referer != Caller
> >>
> >>
> >>Dragos Chirila wrote:
> >>
> >>>Hi All
> >>>
> >>>I have a folderish python object that has a method.
> >>>I want to be able to call this method using the context of the place I
> >
> > call
> >
> >>>it from and not the place where the method is.
> >>>
> >>>Example:
> >>>    ROOT
> >>>        -----/ myObject (has a python method named myMethod)
> >>>                       -----/ folder
> >>>                                    ----/folderMethod (ZPT)
> >>>
> >>>I call myMethod of the myObject from the folderMethod of the folder
> >
> > object.
> >
> >>>I want to execute myMethod in the context of the folder object.
> >>>
> >>>I don't want to use REQUEST['HTTP_REFERER'].
> >>>
> >>>How can I identify the caller(referer) object of the myMethod?
> >>>
> >>>Thanks a lot,
> >>>Dragos
> >>>
> >>>
> >>>
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>