Carrierwave: Move version name to end of filename, instead of front

Simply use #full_filename under the version block:

class AvatarUploaer < CarrierWave::Uploader::Base
  include CarrierWave::MiniMagick

  storage :file

  version :thumb do
    process resize_to_fill: [50, 50]

    def full_filename(for_file = model.logo.file)
      parts     = for_file.split('.')
      extension = parts[-1]
      name      = parts[0...-1].join('.')
      "#{name}_#{version_name}.#{extension}"
    end
  end
end

The result will be following:

/Users/user/app/uploads/1x1.gif
/Users/user/app/uploads/1x1_thumb.gif

• More information in Wiki: How to: Migrate from one model to another
• MVP example: https://gist.github.com/itsNikolay/2394f84f31db33d4c3dc6634068b0259