a.rb

'use strict';
/**
 * The Project factory handles saving and loading projects
 * from firebase, and also lets us save and load the
 * last active project index.
 */
app.factory('Projects', function($firebase, FIREBASE_URL, $scope) {
  var ref = new Firebase(FIREBASE_URL + 'projects');
  var firebase_projects = $firebase(ref);
  var keys = firebase_projects.$getIndex();
  console.log(keys);

  var Projects = {
    all: function () {
      return firebase_projects;
    },
    save: function(client_projects) {
      firebase_projects.$save(client_projects);
    },
    newProject: function(projectTitle) {
      // Add a new project
      return {
        title: projectTitle,
        tasks: []
      };
    },
    getLastActiveIndex: function () {
      var keys = firebase_projects.$getIndex();
      //console.log(firebase_projects);
      return parseInt(window.localStorage['lastActiveProject']) || keys[0];
    },
    setLastActiveIndex: function (index) {
      window.localStorage['lastActiveProject'] = index;
    }
  }
  return Projects;
});