class BasePost < ActiveRecord::Base self.table_name = 'posts' end class Post < BasePost has_attached_file :image, :url => "/system/:class/:attachment/:id/:locale/:style-:fingerprint.:extension" translates :image_file_name, :image_content_type, :image_file_size, :image_updated_at, :image_fingerprint end class OnlyProcessPost < BasePost has_attached_file :image, :url => "/system/:class/:attachment/:id/:locale/:style-:fingerprint.:extension", :styles => { :thumb => "10x10", :large => "40x40" }, :only_process => [:thumb] translates :image_file_name, :image_content_type, :image_file_size, :image_updated_at, :image_fingerprint end class Untranslated < ActiveRecord::Base has_attached_file :image, :url => "/system/:class/:attachment/:id/:style-:fingerprint.:extension" end