Working With Rails

, from the top of my head – you can make a script which retrieves image data (and use this script in src attribute for your tag)
The controller of the mentioned script should set “Content-Type” header, for instance, like this:

response.headers[“Content-Type”] = “image/gif”

After that you just need to output image field content to stdout.

The type of course depends on image formats you store.

thanks naveen..

I handle this with an images controller:

http://pastie.org/161189

I’ve had to deal with a similar problem…but since pulling large data from the database may not be very efficient (extra db load, pulling data over the network not to mention that your app server (i.e. Mongrel) now has to serve them where previously nginx/apache could have), I found a good strategy is to cache images from the database to the standard location in the filesystem (in public/images) and let your webserver serve them in the traditional manner.

What I do is cache all images on application startup and then cache them again if they are modified. In order to do this I created an fs_dump! method on the class that encapsulates image assets:

http://pastie.caboo.se/162364

I made something similar but with PDF files.
PDF files are stored on database using BFILEs. I made a method which gets them, make a local copy and open acrobat reader…