# File lib/dm-types/comma_separated_list.rb, line 8
      def dump(value)
        if value.nil?
          nil
        elsif value.kind_of?(::Array)
          super(value)
        elsif value.kind_of?(::String)
          v = []

          value.split(',').each do |element|
            element.strip!
            v << element unless element.empty?
          end

          super(v)
        else
          raise ArgumentError, "+value+ of CommaSeparatedList must be a string, an array or nil, but given #{value.inspect}"
        end
      end