[Zope] How to list objects across different containers in Zope's tree?

[Ausum]

Thank you again James. I'll test your code.

I thought there was a simpler way to list objects across containers.
Something that could list objects within the same level (starting from
the root), as if each folder at the root was a column, and its
subfolders elements of a raw. 


Ausum


James Sintz wrote:
> 
> Right off the top of my head, since the sections are folder objects you
> could simply dtml-in through the folders and then inbed another dtml-in.
> 
> Example (nothing fancy).
> 
> I did not include any date range stuff, but you can probably figure that out
> on your own. It may be better to include a 'section' property in your zClass
> and then just search your Catalog (see catalog example below for an UNTESTED
> example).
> 
> <dtml-in "objectValues(['Folder'])">
>   <dtml-var name_or_id><br>
>   <!-- now use the folder id to move into the correct namespace -->
>    <dtml-with id>
>      <!-- news stories here -->
>        <dtml-in "objectValues(['newItems'])">
>            <dtml-var headline><br>
>            <dtml-var summary><br>
>        </dtml-in>
>          <br>
>    </dtml-with>
>    <br>
> </dtml-in>
> 
> Catalog example
> 
> <dtml-in "objectValues(['Folder'])">
>   <dtml-var name_or_id><br>
> 
>    <dtml-in "Catalog( { 'meta_type' : 'newsItem',
>                                 'section' :  id,
>                                 'goLiveDate' : [ 2000/27/12 , 2001/05/01],
>                                 'goLiveDate_usage' : 'range:min:max' } )">
>            <dtml-var headline><br>
>            <dtml-var summary><br>
>   </dtml-in>
>    <br>
> </dtml-in>
> 
> > -----Original Message-----
> > From: Ausum [SMTP:ausum@mail.cosapidata.com.pe]
> > Sent: Wednesday, January 17, 2001 3:18 PM
> > To:   James Sintz; zope@zope.org
> > Subject:      Re: [Zope] How to list objects across different containers
> > in Zope's  tree?
> >
> > Thanks for the tip, James. It seems a clever approach although I must
> > keep it for the time being.
> > Anyway if that were the case, the question could be this one:
> >
> > How can I list all the headlines and summaries for all the news appeared
> > for sports, locals and politics sections (in example) from December
> > 27th,2000 and January 5th, 2001 ?
> >
> > Greetings,
> >
> >
> > Ausum
> >
> >
> >
> > James Sintz wrote:
> > >
> > > Ausum,
> > >
> > > It may be time to re-think your site structure. I have a news type site
> > as
> > > well and here is how I handle it (my way... not saying it is by any
> > means
> > > the best or right way).
> > >
> > > Instead of storing your news items in a series of folderish objects,
> > maybe
> > > create folders for each section and then create a news item ZClass with
> > the
> > > article date or goLiveDate as the ID.
> > >
> > > zopesite:8080/sports/2000.10.17/newsobjectid_htm
> > >
> > > Then do some dtml to pull out the ones you want on the main
> > > "sport/thislist_htm" page.
> > > Better yet use ZCatalog to search for the range of news items you want
> > to
> > > appear in the list.
> > >
> > > Hope this helps!!
> > >
> > > Jamey Sintz
> > >
> > >
> 
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