photo.rb

# How do I get Paperclip's post processor callbacks to run?
# The methods below don't seem to work.
# http://groups.google.com/group/paperclip-plugin/browse_thread/thread/d4ee841d5a7e00b2

####################################

# Define `after_post_process` in the model
class Photo < ActiveRecord::Base
  has_attached_file :image
  
  def after_post_process
    puts "This doesn't execute."
  end
end

####################################

# Define `after_<attachment>_process` in the model
class Photo < ActiveRecord::Base
  has_attached_file :image
  
  def after_image_post_process
    puts "This doesn't execute."
  end
end

####################################

# Specify `after_post_process` as an option
class Photo < ActiveRecord::Base
  has_attached_file :image,
    :after_post_process => :do_something
  
  def do_something
    puts "This doesn't execute."
  end
end

####################################

# Specify `after_<attachment>_post_process` as an option
class Photo < ActiveRecord::Base
  has_attached_file :image,
    :after_image_post_process => :do_something
  
  def do_something
    puts "This doesn't execute."
  end
end