module Paperclip::ProcessorHelpers

Public Instance Methods

clear_processors!() click to toggle source
# File lib/paperclip/processor_helpers.rb, line 33
def clear_processors!
  @known_processors.try(:clear)
end
load_processor(name) click to toggle source
# File lib/paperclip/processor_helpers.rb, line 17
def load_processor(name)
  if defined?(Rails.root) && Rails.root
    filename = "#{name.to_s.underscore}.rb"
    directories = %w(lib/paperclip lib/paperclip_processors)

    required = directories.map do |directory|
      pathname = File.expand_path(Rails.root.join(directory, filename))
      file_exists = File.exist?(pathname)
      require pathname if file_exists
      file_exists
    end

    raise LoadError, "Could not find the '#{name}' processor in any of these paths: #{directories.join(', ')}" unless required.any?
  end
end
register_processor(name, processor) click to toggle source

You can add your own processor via the Paperclip configuration. Normally Paperclip will load all processors from the Rails.root/lib/paperclip_processors directory, but here you can add any existing class using this mechanism.

Paperclip.configure do |c|
  c.register_processor :watermarker, WatermarkingProcessor.new
end
# File lib/paperclip/processor_helpers.rb, line 45
def register_processor(name, processor)
  @known_processors ||= {}
  @known_processors[name.to_s] = processor
end