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Diffstat (limited to 'src/jslib/backbone.localStorage.js')
| -rw-r--r-- | src/jslib/backbone.localStorage.js | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/src/jslib/backbone.localStorage.js b/src/jslib/backbone.localStorage.js deleted file mode 100644 index 97ab217..0000000 --- a/src/jslib/backbone.localStorage.js +++ /dev/null @@ -1,213 +0,0 @@ -/** - * Backbone localStorage Adapter - * Version 1.1.0 - * - * https://github.com/jeromegn/Backbone.localStorage - */ -(function (root, factory) { - if (typeof define === "function" && define.amd) { - // AMD. Register as an anonymous module. - define(["underscore","backbone"], function(_, Backbone) { - // Use global variables if the locals are undefined. - return factory(_ || root._, Backbone || root.Backbone); - }); - } else { - // RequireJS isn't being used. Assume underscore and backbone are loaded in <script> tags - factory(_, Backbone); - } -}(this, function(_, Backbone) { -// A simple module to replace `Backbone.sync` with *localStorage*-based -// persistence. Models are given GUIDS, and saved into a JSON object. Simple -// as that. - -// Hold reference to Underscore.js and Backbone.js in the closure in order -// to make things work even if they are removed from the global namespace - -// 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. -// window.Store is deprectated, use Backbone.LocalStorage instead -Backbone.LocalStorage = window.Store = function(name) { - this.name = name; - var store = this.localStorage().getItem(this.name); - this.records = (store && store.split(",")) || []; -}; - -_.extend(Backbone.LocalStorage.prototype, { - - // Save the current state of the **Store** to *localStorage*. - save: function() { - this.localStorage().setItem(this.name, this.records.join(",")); - }, - - // 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 = guid(); - model.set(model.idAttribute, model.id); - } - this.localStorage().setItem(this.name+"-"+model.id, JSON.stringify(model)); - this.records.push(model.id.toString()); - this.save(); - return this.find(model); - }, - - // Update a model by replacing its copy in `this.data`. - update: function(model) { - this.localStorage().setItem(this.name+"-"+model.id, JSON.stringify(model)); - if (!_.include(this.records, model.id.toString())) - this.records.push(model.id.toString()); this.save(); - return this.find(model); - }, - - // Retrieve a model from `this.data` by id. - find: function(model) { - return this.jsonData(this.localStorage().getItem(this.name+"-"+model.id)); - }, - - // Return the array of all models currently in storage. - findAll: function() { - return _(this.records).chain() - .map(function(id){ - return this.jsonData(this.localStorage().getItem(this.name+"-"+id)); - }, this) - .compact() - .value(); - }, - - // Delete a model from `this.data`, returning it. - destroy: function(model) { - if (model.isNew()) - return false - this.localStorage().removeItem(this.name+"-"+model.id); - this.records = _.reject(this.records, function(id){ - return id === model.id.toString(); - }); - this.save(); - return model; - }, - - localStorage: function() { - return localStorage; - }, - - // fix for "illegal access" error on Android when JSON.parse is passed null - jsonData: function (data) { - return data && JSON.parse(data); - }, - - // Clear localStorage for specific collection. - _clear: function() { - var local = this.localStorage(), - itemRe = new RegExp("^" + this.name + "-"); - - // Remove id-tracking item (e.g., "foo"). - local.removeItem(this.name); - - // Match all data items (e.g., "foo-ID") and remove. - _.chain(local).keys() - .filter(function (k) { return itemRe.test(k); }) - .each(function (k) { local.removeItem(k); }); - }, - - // Size of localStorage. - _storageSize: function() { - return this.localStorage().length; - } - -}); - -// localSync delegate to the model or collection's -// *localStorage* property, which should be an instance of `Store`. -// window.Store.sync and Backbone.localSync is deprecated, use Backbone.LocalStorage.sync instead -Backbone.LocalStorage.sync = window.Store.sync = Backbone.localSync = function(method, model, options) { - var store = model.localStorage || model.collection.localStorage; - - var resp, errorMessage, syncDfd = $.Deferred && $.Deferred(); //If $ is having Deferred - use it. - - try { - - switch (method) { - case "read": - resp = model.id != undefined ? 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; - } - - } catch(error) { - if (error.code === DOMException.QUOTA_EXCEEDED_ERR && store._storageSize() === 0) - errorMessage = "Private browsing is unsupported"; - else - errorMessage = error.message; - } - - if (resp) { - model.trigger("sync", model, resp, options); - if (options && options.success) - if (Backbone.VERSION === "0.9.10") { - options.success(model, resp, options); - } else { - options.success(resp); - } - if (syncDfd) - syncDfd.resolve(resp); - - } else { - errorMessage = errorMessage ? errorMessage - : "Record Not Found"; - - model.trigger("error", model, errorMessage, options); - if (options && options.error) - if (Backbone.VERSION === "0.9.10") { - options.error(model, errorMessage, options); - } else { - options.error(errorMessage); - } - - if (syncDfd) - syncDfd.reject(errorMessage); - } - - // add compatibility with $.ajax - // always execute callback for success and error - if (options && options.complete) options.complete(resp); - - return syncDfd && syncDfd.promise(); -}; - -Backbone.ajaxSync = Backbone.sync; - -Backbone.getSyncMethod = function(model) { - if(model.localStorage || (model.collection && model.collection.localStorage)) { - return Backbone.localSync; - } - - return Backbone.ajaxSync; -}; - -// Override 'Backbone.sync' to default to localSync, -// the original 'Backbone.sync' is still available in 'Backbone.ajaxSync' -Backbone.sync = function(method, model, options) { - return Backbone.getSyncMethod(model).apply(this, [method, model, options]); -}; - -return Backbone.LocalStorage; -}));
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