Module: StrictReadOnly::Extension::ClassMethods

Defined in:
lib/strict-read-only.rb

Instance Method Summary collapse

Instance Method Details

#read_only_attribute(*attributes) ⇒ Object 



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# File 'lib/strict-read-only.rb', line 21

def read_only_attribute(*attributes)
  extension = Module.new
  options   = attributes.extract_options!

  attributes.map(&:to_s).each do |name|
    extension.class_eval <<-RUBY, __FILE__, __LINE__ + 1
      def #{name}=(*)
        if #{options.fetch(:if, :persisted?)}
          @read_only_data ||= {}
          @read_only_data["#{name}"] = #{name} unless @read_only_data.key?("#{name}")
        end
        super
      end
    RUBY
  end

  prepend extension
end