[Zope-dev] Calling a DTML Method from Python

[Martijn Faassen]

Hi there,

I'm attempting to write a product that calls a DTML method during its
processing. The product keeps a table of DTML method objects and has a
method that determines what DTML method to call, and then calls it. I'm
not sure _how_ I should call a DTML method object, though.

Example:

class Foo:
    def __init__(self):
        self.map = {}

    def setMap(self, keyword, method):
        self.map[keyword] = method

    def render(self, keyword):
        return self.map[keyword]() # ?? What arguments are needed?

Then, from DTML:
<dtml-call "foo.setMap('hey', somemethod)">
...
<dtml-var "foo.render('hey')">

Is this possible at all? I assume render() actually needs extra
arguments to make this work, but which?

The DTML Method source defines this:

def __call__(self, client=None, REQUEST={}, RESPONSE=None, **kw):

What does the client argument stand for? Anything else I should watch
out for?

I keep running into mysteries like this continuously, it seems...

Regards,

Martijn