[Zope] Alternative to "PARENTS[0]"?

[Brian Lloyd]

> Howdi,
>      I use a "link_table" dtml document that has the 
> following snippet:
> ...
> <!--#with expr="PARENTS[0]"-->
>  <table <!--#var link_table_properties-->>
>   <!--#in expr="objectValues(spec='Folder')" sort=title-->
> ...
> 
> I call this document from all over my site structure to 
> create nice standard
> tables of links, based on sub folders with common properties.
> Trouble is I can't use it to render tables from folders other 
> than the current.
> The PARENTS list always starts with the parent of the 
> initially active document,
>  eg index_html's parent folder.
> 
> Okay the question is, I think: what is the best way to 
> retrieve a list of
> objects under a folder that is not the "current" folder?

Basically, you just need to call "objectValues" on the Folder
you are interested in. As long as the Folder is _above_ you
in the heirarchy, you can acquire it. If it is below you, then
just refer to it as if it were any other subobject. For example,
say your site has a folder setup like:

folder1
  folder2
    folder3
      folder4
        folder5
          folder6

Now, lets say the actual dtml is actually called with the url:
/folder1/folder2/folder3/folder4/index_html

So to create a table based on folder2, we can 'acquire' folder2:

  <!--#in expr="folder1.folder2.objectValues(spec='Folder')"
sort=title-->

or if we want to list folder6, we just start at the current level:

  <!--#in expr="folder5.folder6.objectValues(spec='Folder')"
sort=title-->

Hope this helps!


Brian Lloyd        brian@digicool.com
Software Engineer  540.371.6909              
Digital Creations  http://www.digicool.com