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

To have a real unique filename (not almost unique) I recommend to use the uuid gem.

in Gemfile add:

gem 'uuid'

in file_uploader.rb:

def filename
  if original_filename
    if model && model.read_attribute(mounted_as).present?
      model.read_attribute(mounted_as)
    else
      @name ||= "#{mounted_as}-#{uuid}.#{file.extension}"
    end
  end
end

protected

def uuid
  UUID.state_file = false
  uuid = UUID.new
  uuid.generate
end