[Zope] ZPT & contents slot

[J Cameron Cooper]

John Poltorak wrote:

> On Tue, Jun 21, 2005 at 03:16:11PM -0500, J Cameron Cooper wrote:
>
>> John Poltorak wrote:
>>
>>> If I create a macro which defines a slot called 'content', is there 
>>> any way to have that slot populated by a file with a specific name 
>>> if it exists in a folder?
>>> What I'd like to do is create a structure text file, in each of the 
>>> folders A B C and have it automatically loaded into a content slot 
>>> of a master template whenever the options A B C are selected.
>>>
>>> Can I do that, and if so how?
>>>
>>> I have spent all day looking at ZPT references and have no idea if 
>>> what I'd like to do is possible.
>>
>>
>> You don't have to involve macros::
>>
>>  <div>I'm a header</div>
>>
>>  <p tal:condition="exists:context/stxfile"
>>     tal:replace="structure context/stxfile/CookedBody">
>>    This is sample page content
>>  </p>
>>
>>  <div>I'm a footer</div>
>>
>> If 'stxfile' can be aquired, what it renders will be included as page 
>> structure. (You may need to use a different method one the end of the 
>> path to render the object; for Documents, this is 'CookedBody'.) 
>> Otherwise, nothing will be rendered, though you could add a block 
>> with the oposite condition to supply a default action.
>
>
>
> Is 'stxfile' the actual filename? I'm not concerned about it being 
> structured initially - just want to see it working in principle with 
> any file containg some text.


It's the name of an object. I made up this name for your "structure text
file, in each of the folders A B C". You may call it as you will.

Note: there is no such thing as a "file" in the ZODB. Everything is an
object.

This is how "content" is viewed. One thing I forgot to mention: you
would apply this template (say it's named 'special_view') to your
folders, like:

http://localhost/A/special_view
http://localhost/B/special_view
http://localhost/C/special_view

Now, if we used a template like this (let's name it 'direct_view')::

   <div>I'm a header</div>

   <p tal:replace="structure context/CookedBody">
     This is sample page content
   </p>

   <div>I'm a footer</div>

we could apply it like so::

http://localhost/A/stxfile/direct_view
http://localhost/B/stxfile/direct_view
http://localhost/C/stxfile/direct_view

This is a much more typical pattern, at least for content. If you want
to apply a wrapper to page templates, then you use macros.

         --jcc
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