# File lib/familia/redisobject.rb, line 260
    def to_redis v
      return v unless @opts[:class]
      ret = case @opts[:class]
      when ::Symbol, ::String, ::Fixnum, ::Float, Gibbler::Digest
        v
      else
        if ::String === v
          v
          
        elsif @opts[:reference] == true
          unless v.respond_to? :index
            raise Familia::Problem, "#{v.class} does not have an index method"
          end
          unless v.kind_of?(Familia)
            raise Familia::Problem, "#{v.class} is not Familia (#{name})"
          end
          v.index

        elsif v.respond_to? dump_method
          v.send dump_method
          
        else
          raise Familia::Problem, "No such method: #{v.class}.#{dump_method}"
        end
      end
      if ret.nil?
        Familia.ld "[#{self.class}\#to_redis] nil returned for #{@opts[:class]}\##{name}" 
      end
      ret
    end