[Zope-dev] Help, please!!! __call__ problems with DTML templates

[Evan Simpson]

From: Stephen Simmons <stephen.simmons@healtharena.net>
> 1.)  How do you magically get the DTML context from '<dtml-var A>' without
> having to resort to '<dtml-var "A(_,REQUEST)">' in the templates?

A.isDocTemp = 1 # or make it a shared class attribute

> 2.)  How to convert an arbitrary text string into rendered DTML inside a
> python product method?

Here's what I use:

from Globals import HTML
from AccessControl import getSecurityManager

class DTML(HTML):
    """DTML objects are DocumentTemplate.HTML objects that allow
       dynamic, temporary creation of restricted DTML."""
    def __call__(self, client=None, REQUEST={}, RESPONSE=None, **kw):
        """Render the DTML given a client object, REQUEST mapping,
        Response, and key word arguments."""

        security=getSecurityManager()
        security.addContext(self)
        try:
            return apply(HTML.__call__, (self, client, REQUEST), kw)
        finally: security.removeContext(self)

    def validate(self, inst, parent, name, value, md):
        return getSecurityManager().validate(inst, parent, name, value)

Cheers,

Evan @ digicool & 4-am