[Zope] Help!

[Oleg Broytmann]

On Fri, 10 Aug 2001, Roman V. Isaev wrote:
> Sorry if it's FAQ, but I can't find answer neither on google nor on zope.org.

   Tried Russian-speaking Python and Zope mailing list? :)

> How to check file existance?!

   It is not file, it is object, but anyway...

> I want to upload file, but I don't know if it exists. So:
>
> <dtml-call "PARENTS[0].manage_delObjects('filename')">
> <dtml-call "PARENTS[0].manage_addFile('filename',file,title=REQUEST['title'])">
>
> If I omit manage_delObjects, file will be uploaded once, then zope barks. If
> I place manage_delObjects, the file HAVE to exist before I upload. Now how
> to write this code in a such way that it would handle uploads in any case?

   <dtml-if "'filename' in PARENTS[0].objectIds()">

Oleg.
----
     Oleg Broytmann     http://www.zope.org/Members/phd/     phd@phd.pp.ru
           Programmers don't die, they just GOSUB without RETURN.