[Rails] Getting random db entries...

[Tobias Luetke]

> Now, this will create three Image objects, right?  So, if each image
> is 500KB, that's at least a 1.5MB database transfer (right?).  I
> really only need each image id.

I store my images in the database too but have a File model which has
a belongs_to :binary

The binaries tables has the actual data, the File table has just the
information about it ( format, mime, imagesize, filename etc )

This lets you use File as normal active record object and only recieve
the blob when needed over the binary relation.

-- 
Tobi
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