client/assets/dev/model_datastore.js

   1 _kiwi.model.DataStore = Backbone.Model.extend({
   2         initialize: function () {
   3                 this._namespace = '';
   4                 this.new_data = {};
   5         },
   6
   7         namespace: function (new_namespace) {
   8                 if (new_namespace) this._namespace = new_namespace;
   9                 return this._namespace;
  10         },
  11
  12         // Overload the original save() method
  13         save: function () {
  14                 localStorage.setItem(this._namespace, JSON.stringify(this.attributes));
  15         },
  16
  17         // Overload the original load() method
  18         load: function () {
  19                 if (!localStorage) return;
  20
  21                 var data;
  22
  23                 try {
  24                         data = JSON.parse(localStorage.getItem(this._namespace)) || {};
  25                 } catch (error) {
  26                         data = {};
  27                 }
  28
  29                 this.attributes = data;
  30         }
  31 },
  32
  33 {
  34         // Generates a new instance of DataStore with a set namespace
  35         instance: function (namespace, attributes) {
  36                 var datastore = new _kiwi.model.DataStore(attributes);
  37                 datastore.namespace(namespace);
  38                 return datastore;
  39         }
  40 });