On Wed, 2007-01-17 at 11:45 +0100, Antonio wrote:
Hi all,I'm trying to read a pdf file saved in a postgresql table :
and now, how can I retrieve the file (res.pdf.data) in a file or send it as output in a html page (sendig the right headers) ?
Antonio, I did a very similar thing (storing largish PDF's) in PostgreSQL and what I did was write an external C program that I let be called as a CGI. Although this approach seems slightly kludgy, it works well for a few reasons: 1. Takes the load off your Python web framework (which tend to be not good at serving large files).2. Very high performance (will easily saturate 100Mbit if you let it). 3. Most importantly, psycopg (and hence everything that relies on it,
e.g. SQLAlchemy) doesn't currently support large objects, so it has to be done some other way. Basically I used this by wrapping it in a simple Python CGI (although the ultimate goal was to make it directly callable from a CGI request w/o any wrapper at all). If you end up doing it this way, then you'll want to figure out a way to prevent unauthorized users from accessing it (either via HTTP AUTH or perhaps even by using one of the deep-link preventing features of your webserver if it has them). Hope this gives you a starting point. Regards, Cliff
tanks in advance ... PS sorry for my english ...
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pgcatlo.tgz
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