[Zope-CMF] Re: Using CMF metadata in ZPT pages - why are thes e two different?

[Anton Hughes]

grendelAI said:
> I believe your
> problem is with how you are retrieving the dataset of newsItems.

Maybe I need to be a bit clearer. The script *works* when I use it with a
batch of newsitems. It's in newsitem_view using here/Subject where its
behaviour is unexpected...

>But, based on your explanation the removal
>of the tal:condition causes the news/Subject to be executed. However, news
=
>nothing.

If I do this:

<span tal:condition="here/Subject">Print this</span>

here/Subject evaluates to nothing so 'Print this' never appears. *However*
the following

<span tal:replace="here/Subject">

results in this

('Subject1',)

which is clearly not nothing. And like I said, the tal:condition statement
works fine when the object is retrieved as part of a batch. So why is
tal:condition acting differently between the two contexts?

Anton

-----Original Message-----
From: grendelAI [mailto:grendelAI at msn.com]
Sent: Thursday, 18 September 2003 11:59 AM
To: zope-cmf at zope.org
Subject: [Zope-CMF] Re: Using CMF metadata in ZPT pages - why are these
two different?


I recently went through some very similar frustrations.  If you can
display this section
possibly I can pinpoint it more.  So
you are trying to retrieve the subject attribute from nothing which will
throw an error. Again I would inspect the statement retrieving the list of
news items as well as insuring
you have news items to retrieve.

Note by retrieval statement is below:

                 results
       python:container.portal_catalog.searchResults(meta_type='News
 
Item',sort_on='created',sort_order='reverse',review_state='published',path='
/Plone/'+path);

I had to use the searchResults method and additionally prefix the path
statement with my site root in order for it to retrieve news items from the
folder.

Hope this helps


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