[Zope] get objects "DTML Document" having Property "order"...

[QUIN Frédéric]

Hello,


I want to do :
<dtml-in "objectValues('DTML Document')" sort=order>
...
</dtml-in>

I have some DTML Documents which don't have the property "order", and I
don't want to consider those documents in my loop. But if I put the
"sort=order" option, Zope raises an error

How can I do ???


Thanks a lot,
Frederic