[Zope] small python problem

[Paul Winkler]

On Wed, Dec 05, 2001 at 08:16:10AM -0800, sanjeev c s wrote:
> Hello friends,
> i have a form which uploads a file.
> and it calls a method which pass parameter to a python
> script. this python script creates a 'file object'.
> 
> Now the python script creates a 'file object' even if
> file is not uploaded in the form. so in the script i
> want to have a condition,
> 
> if picture:
>   container.foldername.manage_addImage(id=id,
> file=picture)
> 
> but still even if the file is not uploaded the 'file
> object' is created. what is the problem ??

When you submit an upload form, you always get the file object, even
if it's empty.  But if the user didn't give a filename in the form,
you can test for that like so:

if picture.filename:
   container.foldername.manage_addImage(id=id,
   file=picture)

This works because picture.filename will be an empty string if they
didn't provide a name.

-- 

paul winkler
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