Module: DirectWave::Uploader::Versions::ClassMethods

Defined in:
lib/directwave/uploader/versions.rb

Instance Method Summary collapse

Instance Method Details

#version(name, &block) ⇒ Object

Adds a new version to this uploader

Parameters

name (#to_sym)

name of the version

&block (Proc)

a block to eval on this version of the uploader

Examples

class Video < DirectWave::Uploader::Base

  version :iphone do
    def filename
      @filename ||= [extract(:guid), "iphone-video" << extract(:extname)].join("/")
    end

    def process
      super

      # processing version here with zencoder.com or another encoding cloud service
    end
  end

end



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# File 'lib/directwave/uploader/versions.rb', line 125

def version(name, &block)
  name = name.to_sym
  unless versions[name]
    version = Class.new(Version)

    # Add the current version hash to class attribute :versions
    current_version = {}
    current_version[name] = version
    self.versions = versions.merge(current_version)

    class_eval "      def \#{name}\n        versions[:\#{name}]\n      end\n    RUBY\n  end\n  versions[name].class_eval(&block) if block\n  versions[name]\nend\n"