[Zope3-dev] Re: file objects and formlib

[Florent Guillaume]

Martijn Faassen wrote: [quotes reordered]
>   - for an add form, if something goes wrong and the form is redisplayed 
> with some validation errors, the uploaded file information is lost. This 
> is bad because for a required file field, it requires multiple uploads 
> where one should suffice, and for a non-required file field, it's even 
> worse, as a user would have no motivation to re-upload the same file 
> after validation failure and redisplay of the form, resulting in no file 
> being uploaded at all.
 >
 > I've already solved [this] problem by storing
 > files in a session temporarily. This isn't efficient, but I *also*
 > developed something that will lick that problem and that I'll present in
 > a lightning talk at the Plone conference.

Yes that's a generic HTTP problem, and you *have* to use some kind of 
session to deal with it. There's no way around.

Florent

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Florent Guillaume, Nuxeo (Paris, France)   CTO, Director of R&D
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