CouchDB list function for an icalendar format

design.js

// http://localhost:5984/db/_design/doc/_list/ics/events
//
// HTTP/1.1 200 OK
// Vary: Accept
// Transfer-Encoding: chunked
// Server: CouchDB/1.1.0 (Erlang OTP/R14B03)
// Etag: "6A5G0HZINBK0F6S0NSE7KHM2M"
// Date: Fri, 21 Oct 2011 22:11:15 GMT
// Content-Type: text/calendar
// 
// BEGIN:VCALENDAR
// VERSION:2.0
// PRODID:Calendar
// BEGIN:VEVENT
// ...
// END:VEVENT
// END:VCALENDAR

ddoc.lists = {
  ics: function(head, req) {
    var Mustache = require("lib/mustache");
    var template = "" +
      "BEGIN:VCALENDAR\n" +
      "VERSION:2.0\n" +
      "PRODID:Fact-Checker\n" +
      "{{#events}}\n" +
      "BEGIN:VEVENT\n" +
      "UID:{{uid}}\n" +
      "DTSTAMP:{{updated_at}}\n" +
      "DTSTART:{{start_time}}\n" +
      "DTEND:{{end_time}}\n" +
      "SUMMARY:{{summary}}\n" +
      "END:VEVENT\n" +
      "{{/events}}\n" +
      "END:VCALENDAR\n";

    provides("ics", function() {
      var rows = [];
      while(r = getRow()) {
        rows.push({
          uid: r._id,
          updated_at: r.updated_at,
          start_time: r.start_time,
          end_time: r.end_time,
          summary: r.summary
        });
      }
      var ics = Mustache.to_html(template, {events: rows});
      return ics;
    });
  }
};