[Zope] Zope Patterns

[Ausum Studio]

This is a typical issue, and the best workaround I can give you is "write
your own Zope objects".
With this approach you can define what are going to be your content
primitives and how their look and feel will be, according to its contents
and the context. This is in fact means that you can have as many index_htmls
as the number of objects you define.

In CMF you do this in a very friendly way by by creating portal types. But
if you don't want to trip into canalled waterways, you can write a product
on your own.


Ausum



----- Original Message ----- 
From: "Douwe Osinga" <dmo at oberon.nl>
To: <zope at zope.org>
Sent: Thursday, January 15, 2004 7:52 AM
Subject: [Zope] Zope Patterns


> Hi Zopers,
>
> I have a musing about how Zope sites are set-up which I would like to
share
> and would very much like comments on.
>
> Typically, a web page has a header, a body and a footer. In most Zope
> instances, this is translated into standard_html_header,
> standard_html_footer, while an index_html calls these and does something
> interesting in between.
>
> I don't like this setup too much, because it explicitly repeats the
calling
> of standard_html_* for every page. If you want to add a parameter to for
> example standard_html_header (say the css to use or similar), you'll have
to
> change all pages (yes, you can use default parameters, but that is not the
> point). So I usually end up with a structure like this:
>
> root
>    index_html
>    standard_html_footer
>    standard_html_header
>    mainbody
>    folder1
>        mainbody
>    folder2
>        mainbody
>
> where index_html calls header, mainbody and footer. This works great,
except
> for that you need a folder for any page that needs to display the
structure.
> If you want add a method to the root folder that is applicable to
everypage,
> then this method needs to call the structure again.
>
> One could of course create a method that takes as a parameter the contents
> (mainbody) of a page and than calls the structure methods, but that works
> clumsy too.
>
> I have been thinking in subclassing python script in a way that it calls
> index_html and inserts the result of the script in the position of the
call
> to mainbody.
>
> Do other people recognize this pattern? Other solutions?
>
> I'd love to hear.
>
> Douwe Osinga
> http://douweosinga.com
>
>
>
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