[Zope] Image Uploading and Adding Properties?

[Tom Schwaller]

"Ross J. Reedstrom" wrote:
> 
> On Sun, Jun 13, 1999 at 01:27:02PM -0100, Tom Schwaller wrote:
> > Hi,
> > can someone give me a simple example how to do the following:
> >
> > I`d like to have an enhanced Image-Upload-Form, which takes the image
> > (on the local file system) you choose, adds some properties to this
> > image
> > which you can fill in the Form (a few text strings like URL e.g.) and
> > returns the reply I wish (not this ok-Buttons..).
> 
> Tom -
> I've done something similar with a generic file upload/exchange site. I
> wanted to tag each File with the (authenticated) user who uploaded
> it. There's three tricks involved. The first is the standard Zopeism of
> having a user interface Form method/page, which then calls a non-interface
> Action method/page. The second is to discover that the various manage_*
> methods will return to your method if called without a REQUEST variable
> being set. The third to another Zopeism: using the :method tag on a FORM
> input NAME to call a method, but not have it show up in the URL. That way,
> all these file/object management pages bookmark as my main interface page.
> 
> A couple notes about my (ugly, but functional) methods below:
> It still implements a click through 'ok', but it returns to my page, not
> the standard management interface.
> 
> I've still got some functionality to implement, (i.e. the comment in
> the code about name collisions), but I think I'm bumping up against what
> should be done in DTML and what should be moved into external methods.
> 
> Anyone have any suggestions on improving this code, feel free to comment.
> 
> Here's my addFileForm (mostly stolen from the imageUpload.dtml source):

Hi Ross,
cool, thanks a lot. Not kind of obvious. Your example is of GREAT help
to me.
I think I can now implement what I want...

When I upload an image with the code you postet, the resulting object is
not 
a "normal" image object (although it has every attribute one wants,
including
the "addedby"). The icon although is different and there's also a thing
called

Precondition (which is empty..)

Any idea what that is?

cu and it is fun to be on this list :-)

-- 

Tom 
http://www.linux-magazin.de/