diff --git a/docs/backbone.localstorage.html b/docs/backbone.localstorage.html deleted file mode 100644 index e075b20f..00000000 --- a/docs/backbone.localstorage.html +++ /dev/null @@ -1,56 +0,0 @@ - backbone.localstorage.js
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backbone.localstorage.js

A simple module to replace Backbone.sync with localStorage-based -persistence. Models are given GUIDS, and saved into a JSON object. Simple -as that.

Generate four random hex digits.

function S4() {
-   return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
-};

Generate a pseudo-GUID by concatenating random hexadecimal.

function guid() {
-   return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
-};

Our Store is represented by a single JS object in localStorage. Create it -with a meaningful name, like the name you'd give a table.

var Store = function(name) {
-  this.name = name;
-  var store = localStorage.getItem(this.name);
-  this.data = (store && JSON.parse(store)) || {};
-};
-
-_.extend(Store.prototype, {

Save the current state of the Store to localStorage.

  save: function() {
-    localStorage.setItem(this.name, JSON.stringify(this.data));
-  },

Add a model, giving it a (hopefully)-unique GUID, if it doesn't already -have an id of it's own.

  create: function(model) {
-    if (!model.id) model.id = model.attributes.id = guid();
-    this.data[model.id] = model;
-    this.save();
-    return model;
-  },

Update a model by replacing its copy in this.data.

  update: function(model) {
-    this.data[model.id] = model;
-    this.save();
-    return model;
-  },

Retrieve a model from this.data by id.

  find: function(model) {
-    return this.data[model.id];
-  },

Return the array of all models currently in storage.

  findAll: function() {
-    return _.values(this.data);
-  },

Delete a model from this.data, returning it.

  destroy: function(model) {
-    delete this.data[model.id];
-    this.save();
-    return model;
-  }
-
-});

Override Backbone.sync to use delegate to the model or collection's -localStorage property, which should be an instance of Store.

Backbone.sync = function(method, model, success, error) {
-
-  var resp;
-  var store = model.localStorage || model.collection.localStorage;
-
-  switch (method) {
-    case "read":    resp = model.id ? store.find(model) : store.findAll(); break;
-    case "create":  resp = store.create(model);                            break;
-    case "update":  resp = store.update(model);                            break;
-    case "delete":  resp = store.destroy(model);                           break;
-  }
-
-  if (resp) {
-    success(resp);
-  } else {
-    error("Record not found");
-  }
-};
-
-
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