[Zope-dev] Custom dtml tag

[Andy McKay]

Finally woke up on this problem.

Got this working by simply calling resolve_url upon the request object. But
what I want is a result that changes depending upon the object. Let's face
it, this can be acheived a whole lot easier by creating a method for the
objects and calling that.

So thats what Ive done and stayed away from using a dtml-tag.

Thanks for your help.

----- Original Message -----
From: "Brett Carter" <brett@kavi.com>
To: "Andy McKay" <andym@activestate.com>
Cc: <zope-dev@zope.org>
Sent: Wednesday, September 13, 2000 9:51 AM
Subject: Re: [Zope-dev] Custom dtml tag


> Andy - looking up 'this' in a dtml method or document won't work
> unless you expose it in your python product/tag definition.  I'm
> talking about getting 'this' inside a dtml tag that I have defined
> myself (i.e. <dtml-foobar></dtml-foobar>).  If you want 'this'
> available in dtml, write an external method and just return 'self'
> def this(self): return self
> -Brett
>
> >>>>> "Andy" == Andy McKay <andym@activestate.com> writes:
>
>     Andy> Really? Ive looked up this and get nothing (an attribute error
actually) and
>     Andy> its not in globals. If that would work that would be great - but
a it
>     Andy> certainly doesnt seem to on a standard DTMLDocument / Method.
>
>     Andy> ----- Original Message -----
>     Andy> From: "Brett Carter" <brett@kavi.com>
>     Andy> To: "Andy McKay" <andym@activestate.com>
>     Andy> Cc: <zope-dev@zope.org>
>     Andy> Sent: Tuesday, September 12, 2000 4:17 PM
>     Andy> Subject: Re: [Zope-dev] Custom dtml tag
>
>
>     >> Andy: here's what I've gleaned - in a dtml tag's render() method,
you
>     >> get passed in self and a template dict, in my example let's call it
>     >> 'md'.  md is essentially a stack/dictionaryish object of the
*current*
>     >> namespace - and one of the handy things that's always around in the
>     >> namespace is the 'this' function, which returns the object on the
top
>     >> of the stack.
>     >>
>     >> Just lookup 'this', run it, and there you have a reference to the
>     >> calling object!  Ex:
>     >>
>     >> def render(self, md)
>     >> this = md.getitem('this')
>     >> callingObj = this()
>     >> return "Calling object was %s" % (callingObj.id())
>     >>
>     >> Note I haven't tested this code.  Good luck!
>     >> -Brett
>     >>
>
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