[Zope-dev] Rendering of objects in DTML

[Chris Withers]

Bjorn Stabell wrote:
> I would like
> 
>   <dtml-var content>
>   <dtml-with content>...
>   <dtml-if content>
> 
> to call different functions.  The first renders the object, the second
> returns a mapping of the content's attributes/properties, the third
> checks for "trueness" of the content.  Rendering a content could be an
> expensive operation and I don't want to do it when doing dtml-with and
> dtml-if.

That kind of implicit weirdage is not something python encourages.

<dtml-var content> ...should render
<dtml-with "content.properties">
<dtml-if "content.true()">

...is much better.

cheers,

Chris