backbone-memstore.js | |
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in memory store plug-in taken from source: http://documentcloud.github.com/backbone/docs/backbone-localstorage.html | var _ = require('underscore');
var Backbone = require('backbone');
function S4() {
return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
};
function guid() {
return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
};
var data = {};
var Store = module.exports = function(name) {
this.name = name; |
var store = localStorage.getItem(this.name); this.data = (store && JSON.parse(store)) || {}; | };
_.extend(Store.prototype,
{
save: function() { |
localStorage.setItem(this.name, JSON.stringify(this.data)); | },
create: function(model) {
if (!model.id) model.id = model.attributes.id = guid();
data[model.id] = model;
this.save();
return model;
},
update: function(model) { |
console.log('memstore update'); | data[model.id] = model;
this.save();
return model;
},
find: function(model) { |
console.log('memstore find', model.id); | return data[model.id];
},
findAll: function() { |
console.log('find all'); | return _.values(data);
},
destroy: function(model) {
delete data[model.id];
this.save();
return model;
}
});
Backbone.sync = function(method, model, opts) {
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": |
pass along the notication opts trigger an instance change if available on model | model.triggerInstanceChange && model.triggerInstanceChange(opts);
resp = store.update(model);
break;
case "delete": resp = store.destroy(model); break;
}
if (resp) {
opts.success(resp);
} else {
console.log('record not found');
opts.error("Record not found");
}
};
|