[Zope] <dtml-var foo> vs. <dtml-var expr="foo()">

[Small Business Services]

if your path is fixed try:

<dtml-with Path>
  <dtml-with to>
    <dtml-with my>
      <dtml-var bar>
    </dtml-with>
  </dtml-with>
</dtml-with>



Jonathan


----- Original Message ----- 
From: "Juho Vuori" <juho.vuori at kepa.fi>
To: <zope at zope.org>
Sent: January 20, 2004 9:26 AM
Subject: [Zope] <dtml-var foo> vs. <dtml-var expr="foo()">


> A newbieish question. I thought <dtml-var foo> and <dtml-var 
> expr="foo()"> were the same thing. Seems they are not: Depending on the 
> way foo is called something differs in the environment they run in.
> 
> Given the following situation:
> 
> I have an dtml-method foo =
>   <dtml-var bar>
> 
> And dtml-method bar
>   <dtml-var baz>
> 
> Plus a third method baz
>   <p>Pazaa!</p>
> 
> Now viewing foo does exactly what you think it does: It goes calls bar 
> which calls baz which returns the text <p>Pazaa!</p>
> 
> Now change the first method foo:
>   <dtml-var expr="bar()">
> 
> And you'll get KeyError: baz
> 
> Does somebody understand what is going on?
> 
> My real-world situation is that I need to specify a path, which as far 
> as I know forces me to use the expr="Pat.to.my.bar()" alternative. Or 
> does it not?
> 
> Juho Vuori
> 
> 
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