[Web-erp-developers] Re: Faulty download of PDF Files Resolved.

[Danie B. <br...@na...>]

The problem it seems is two fold, here is the description of the
problem.

When requesting the print of an order or pdf more than once ( i.e
order/invoice/etc) the system will not print the second request and
instead notify the user it has already been printed.

The nature of downloading using integrated download management software,
such as I use because of bandwidth issues, causes the browser to request
the URL, interpret the headers, and if download a download manager is
plugged in, it will pass the URL to the download manager. This has the
effect of doing a second request to the web-server for the same
document.

The obvious solution is to disable the download plug-in, however this to
my mind is unreasonable considering that a lot of people use these for
purposes of download recovery. In other words they are there.

So can we work around a download manager? The answer is yes we can, by
introducing a document request identifier, random or sequentially
generated. When a document is requested a generated DocID is included as
a parameter, On first request this ID is stored with the
Order/Invoice/etc. When a document is re-requested and the DocID is the
same, allow a reprint.

Is this possible ?? It will eliminate a lot of support requests in
future, I am sure because it took me two days to figure out.

What do you think ??

Kind Regards
Danie Brink br...@na...