Our client needs a document tracking system, which allows authorized
users to view PDF files. For legal reasons they want to track
the date, time and IP Address of who views these documents.
This is the code I'm using
cfquery datasource=theDB name=logDocView
INSERT into docLog
(documents_ID, dateViewed, ipAddress)
VALUES
(#DocID#, #CreateODBCDateTime(now())#, '#CGI.remote_addr#')
/cfquery
cflocation url=documents/#docFilename#
When we run this query, we end up with three records in the
database. If I do a CFLocation to a CFM file instead of a PDF
file I only get one record inserted. Plus if I remove the
CFLocation and replace it with a a href it also inserts just
one record. G!
I suspect that this is due to a peculiarity with PDF files, in that the
client may intentionally make multiple requests for the same file. A few
years ago, I ran into a problem with an application that used CFLOCATION to
redirect to PDF files, and depending on the version of Acrobat used to
create the files, various things might happen - the redirection might work
or might not work at all!
My workaround for this was to use client-side redirection for PDF files
using JavaScript and/or META tags.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
voice: (202) 797-5496
fax: (202) 797-5444
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