Paperclip section within model

paperclip_model.rb

include Paperclip::Dimensions

  has_attached_file :image,
                    :styles => {
                        :tiny =>{:geometry => "95x110>"},
                        :small =>{:geometry => "114x132>"},
                        :normal =>{:geometry => "133x154>"},
                        :large =>{:geometry => "190x220>"}
                    },
                    :path => Settings.user_images.base_path + ":id/:style.:extension",
                    :url => Settings.user_images.base_url + ":id/:style.:extension"


  after_post_process :save_image_dimensions