findby.js

findBy = exports.findBy = function(view, params, callback) {
  var event;

  if (event = eventsCache[view+JSON.stringify(params)]) {
    callback(null, event);
  }
  else {
    db.view('event', view, params, function(err, body) {
      if (err) {
        console.log(err);
        callback(err, null);
      }
      else {
        if (body.rows.length == 0) {
          var msg = 'No match for: ' + view + ', ' + params;
          console.log(msg);
          callback(msg, null);              
        }
        else {
          event = body.rows[0].value;
          eventsCache[view+JSON.stringify(params)] = event;
          callback(null, event);
        }
      }
    });
  }
}