graphic_uploader.rb

class GraphicUploader < Shrine
  include ImageProcessing::MiniMagick
  plugin :activerecord
  plugin :cached_attachment_data # for retaining the cached file across form redisplays
  plugin :restore_cached_data # re-extract metadata when attaching a cached file
  plugin :determine_mime_type
  plugin :remove_attachment

  def generate_location(io, context = {})
    name  = super # the default unique identifier

    if io.is_a?(File)
      initial_location  = io.to_path
      new_location      = initial_location.match(/(.*\/).*/)[1]
      final_location = [new_location + name].compact.join # returns original path
    end
  end


end