quote_bound_value

# File activerecord/lib/active_record/sanitization.rb, line 203
        def quote_bound_value(value, c = connection)
          if value.respond_to?(:map) && !value.acts_like?(:string)
            if value.respond_to?(:empty?) && value.empty?
              c.quote(nil)
            else
              value.map { |v| c.quote(v) }.join(",")
            end
          else
            c.quote(value)
          end
        end