[Zope-dev] using overridden docs

Thu, 05 Aug 1999 10:44:25 +0200

At 23:57 04/08/99 , Robin Becker wrote:
>Is there any way to use an over-ridden document ie I want to include the
>contents of the acquired standard_html_header within the current
>folder's standard_html_header
>
>  I want to use this for the current folder ie override one property
>
><dtml-var standard_html_header>
><dtml-call "RESPONSE.setHeader('content-type','text/html')">

You could use <dtml-with "PARENTS[1]"> or <dtml-with "PARENTS[-1]"> or 
something like that, but that isn't very flexible, and the first method 
(PARENTS[1]) doesn't work in subfolders acquiring your header, as 
PARENTS[1] will be a different, higher folder, thus causing an infinite loop.

You should probably factor out the property or element that you want to 
override into a seperate document, which you override in subfolders:

Toplevel standard_html_header:

   <HTML><HEAD>....... etc ....
   <dtml-var extra_header_info>
   </HEAD>

where extra_header_info is an empty string property on the top-level 
folder. Then, in subfolders, you could override this property by setting a 
new proprty, or using a DTML Method with the same id, to include things like

   <dtml-call "RESPONSE.setHeader('content-type','text/html')">

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Martijn Pieters, Web Developer
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