[pmwiki-users] java pop-up for duplicate upload name

[marc]

david roundell said...
>  
> i would like to have a script to warn our users that the filename they
> intend to use on an upload is already in use. ideally the pop-up
> should state are you sure you wish to overwrite the file yes/no?
> whether this should be in java or html is not essential.

Well, Java would be overkill, but I suspect that you mean JavaScript ;-) 

> the script
> needs to work for i.e6 only as it is only used at work and i.e6 is the
> only browser we can use!

Ouch! But really, no-one here is likely to want to produce something for 
any one browser, perhaps least of all IE6 which was, and remains, a 
disaster.
  
> similar to this script:
> http://www.pmwiki.org/wiki/Cookbook/ConfirmEditNotSaved

I don't know this recipe, but you might want to consider the 
$EnableUploadVersions option. See the docs:

$EnableUploadVersions
    When set to 1 (default is 0), uploading a file to a location where a 
file of the same name already exists causes the old version to be 
renamed to file.ext,timestamp (instead of being overwritten). timestamp 
is a Unix-style timestamp.

Alternatively, the fix looks like pointing $UploadVerifyFunction, 
at your own function and, probably, calling UploadVerifyBasic() before 
your code - with an appropriate escape for the '' return value.

It might even work in IE6!

-- 
Cheers,
Marc