Renaming uploaded files with Carrierwave

Question

I\'m using Carrierwave to upload files, and I have it working.

My issue is attempting to change the name of the uploaded file.

In the generated uploader.rb there

Answer 1

The other solution looks good, but how I did it then was to have a hook that created a random string for a new name on instance creation, then:

 def filename
    "#{model.randomstring}.#{model.image.file.extension}"
 end

in the uploader.

That worked, putting the random name generation as part of the model, then having carrierwave use that.

I am curious which is faster, more effective, reasonable, sound, etc.