Dynamically setting Paperclip processors with attachment instance data

rubyonrails-talk
1

I'm trying to dynamically set my Paperclip processors which are stored in my database, ideally I would want to access attachment.instance.paperclip_processor, but I can't seem to do that. Any ideas?

# class Post < ActiveRecord::Base has_attached_file :image,   :path => ":rails_root/ public/:hash_path/:style/:basename.:extension",   :processors => lambda { |attachment| attachment.instance.paperclip_processor }   :styles => {     :thumb => ["175x175#", :jpg],     :resized => ["800x800>", :jpg],   }