Creating a new resource

app.js

initialize: function() {
  this._fdb = new Firebase('http://gamma.firebase.com/opencountmadison/');
  this._resources = this._fdb.child('resources');

  this._bindEvents();
  this._bindDataEvents();
},
// Bind interface events
_bindEvents: function() {
  var self = this;

  $('#add-form').submit(function() {
    var name = $('#name-new').val();
    var tag = $('#tag-new').val();
    var max = parseInt($('#max-new').val());
    var current = parseInt($('#count-new').val());
    
    // some sanity checking...

    self._addResource(tag, name, max, current);

    return false;
  });
},
// Add a new resource
_addResource: function(tag, name, max, count) {
  var self = this, now = new Date();
  var resourceData = {
    tag: tag,
    name: name,
    max: max,
    count: count,
    added: now.getTime(),
    last_modified: now.getTime()
  };

  // Check to see if the resource already exists in firebase, otherwise create it
  this._resources.child(tag).transaction(function(currentEntry) {
    if(currentEntry === null) {
      // Return the data we want Firebase to store
      return resourceData;
    }
    // We'll return undefined if the entry already exists
  }, function(success) {
    if(!success) {
      // Did not create it, it already exists
      $(document).trigger('resource.alreadyExists', resourceData);
    } else {
      // We created it
      $(document).trigger('resource.created', resourceData);
    }
  });
},