joshsusser (owner)

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gist: 153758 Download_button fork
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  ### meta magic boolean attributes
  def self.attr_boolean(attr_name)
    class_eval(<<-CODE, __FILE__, __LINE__)
      def #{attr_name}=(#{attr_name})
        @#{attr_name} = !!(/^1|true$/i =~ #{attr_name}) # yes, we need a boolean
      end
 
      def #{attr_name}
        @#{attr_name}
      end
      alias_method :#{attr_name}?, :#{attr_name}
    CODE
  end
 
  attr_boolean :is_awesome
  attr_boolean :has_mutant_powers