I'm trying to get the content of a subfolder from a directory structure using LocalFS doing the following :

<dtml-in expr="Pictures['subfolder1']['subfolder2']['subfolder3'].fileItems()">
<dtml-var id>
</dtml-in>

So far, everything looks fine...

The actual problem is that I'm not able to enter a subfolder defined in a variable way. It works out fine when there is only one subfolder :

<dtml-call "REQUEST.set('location','Summer')">
<dtml-in expr="Pictures[Summer].fileItems()">
<dtml-var id>
</dtml-in>

but what to do if we need a subfolder's subfolder ? We can try typing :

<dtml-call "REQUEST.set('location','Summer/Vacation')">
<dtml-in expr="Pictures[Summer].fileItems()">
<dtml-var id>
</dtml-in>

to get the content of the Summer/Vacation folder...
But this fails in ZOPE ! Can someone show me the light please.
Thanks,
Thierry