File_column and adding/changing :versions


I’m using file_column 0.3.1 and I recently installed RMagick on my
machines, so I’m adding the :versions resizing functionality to my

I quickly noticed that resized versions are only being created for newly
uploaded images, and that no magicked versions get created for existing
images. I thought file_column would be smart enough to generate
:versions as needed.

Has this been addressed in the trunk version? If so, I’ll start grabbing
new versions of the plugin via SVN.

If not, is there a simple routine I can put in environment.rb or in a
rake task to force generation of :versions on existing images? I want to
be sure I can do one of these things painlessly before I go any further
because I don’t want to have a big hassle if I choose to add more image
versions or change generated sizes as my app evolves.

Yes, I know this would be a very long, resource-intensive process if my
app had many thousands of images… but it doesn’t. However, there are
enough that requiring all images to be re-uploaded manually is not an

If it’s not already in place may I suggest having them generate
dynamically during url_for_file_column calls when the version of an
image doesn’t already exist?

This really might be a better way to generate them in the first place,
rather than on upload as it seems to be.