Andrey,

One way would be to simply test for it on your form action page.

<dtml-if "image_1 == ''">
  <p>Sorry! You need to include an image.</p>
<dtml-else>
  <dtml-call "manage_addImage( id=imageId, file=REQUEST[ image_1],
REQUEST=REQUEST )">
</dtml-if>

Jamey

> -----Original Message-----
> From: Andrei Belitski [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, January 17, 2001 9:16 AM
> To:   [EMAIL PROTECTED]
> Subject:      [Zope] verify whether html <input type=file... is empty
> 
> Hi!
> Don't know if it is really a zope question, but I have a problem,
> verifying if e.g. input
> <INPUT TYPE="file" NAME="image_1" SIZE="50">
> is empty or not using
>     <dtml-unless " REQUEST[ 'image_1']=='' ">
>        <dtml-call "manage_addImage( id=imageId, file=REQUEST[ image_1],
> REQUEST=REQUEST )">
>     </dtml-unless>
> well, I think the <input type=file... is not a string, but what I want
> to test is if the user put in the filename and not whether the really
> existing file is empty, so how could aI do it?
> 
> I would appreciate any hints
> Thank you in advance
> Andrey
> 
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