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module Paperclip
module ProcessorHelpers
class NoSuchProcessor < StandardError; end
def processor(name) #:nodoc:
@known_processors ||= {}
if @known_processors[name.to_s]
@known_processors[name.to_s]
else
name = name.to_s.camelize
load_processor(name) unless Paperclip.const_defined?(name)
processor = Paperclip.const_get(name)
@known_processors[name.to_s] = processor
end
end
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
def clear_processors!
@known_processors.try(:clear)
end
# 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
def register_processor(name, processor)
@known_processors ||= {}
@known_processors[name.to_s] = processor
end
end
end
Version data entries
31 entries across 29 versions & 6 rubygems