Apple

Hi !

I have a problem concerning the upload of large files using WebObjects.

What I am trying to do :

(1) I want to upload an arbitrarily large file using WebObjects.

(2) I would also like to have a progress bar that monitors the progress of the upload.

(3) I would also like the user to be able to use the rest of the application during the upload.

What I have :

I tried many solutions to do that. The most obvious way to do this would be to have :

a WOFileUpload to actually upload the file (1) : it can handle arbitrarily large files if you use a DirectAction

a WOLongResponsePage for the progress bar (2)

a popup that contains the progress bar for the user to be able to use the rest of the application in his previous page (3)

I tried to find existing solutions but none worked fine. The best I found was this one : http://wocode.com/cgi-bin/WebObjects/WOCode.woa/1/wa/ShareCodeItem?itemId=306

But it does not work in all browsers and it is very complicated for a task that seems "quite simple".

The problems encountered :

I have two versions that does not work :(

The first one (available here : http://homepage.mac.com/easyshadow/.Public/UploadWithProgress.zip) does not have any popup. Unfortunately, when the WOLongResponse page reloads the InputStream we have raises a NullPointerException.

The second one (available here : http://homepage.mac.com/easyshadow/.Public/UploadWithProgress2.zip) has a popup. The transfer works (at least) but the WOLongResponse page never reloads... not very useful.

I would be VERY happy if anyone could help me with that.

I have been working on that for weeks and I still have not found any solution.

Does that come from a WO bug?

Is my design wrong?

Does anyone have a working solution for that?

I am currently looking at Ruby that seems to have a decent solution to do this but I would obviously prefer to have a 100% WO solution.

Thanks in advance !

If you have any question I would be glad to answer them.

Fabrice Pipart

www.icconsulting.mc

International Corporate Consulting

25, Boulevard de Belgique

MC - 98000 Monaco

T. +377 97982104 (direct)

F. +377 97708807