[Zope] attribute error: absolute_url

[Casey Duncan]

Dieter Maurer wrote:
> 
> wazum-mail (wolfgang) writes:
>  > ...
>  > <dtml-if text_css_styles><link rel="stylesheet" type="text/css"
>  > href="<dtml-var "text_css_styles.absolute_url ()">"></dtml-if>
>  > ...
>  > AttributeError: absolute_url
> That's a nasty side effect of the caching performed by
> many DTML tags:
> 
>   If you use "<dtml-if name=XXX ...>" (this is the explicit
>   form of "<dtml-if XXX ...>"),
>   then "XXX" is rendered and bound to the name "XXX".
>   When you later access "XXX", you get the already rendered
>   value.
> 
>   If "XXX" is (originally) bound to a DTML object (as in your case),
>   then it is very likely that its rendered value is a string
>   which (of course) does not have an "absolute_url" method.
> 
> Dieter
> 

Smells like a bug to me. IMHO caching should be entirely transparent to
the top-level behavior. But alas, our world is less than perfect. 

I'm surprised I haven't run into this myself...

-- 
| Casey Duncan
| Kaivo, Inc.
| cduncan@kaivo.com
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