Saving a model in local storage

Question

I\'m using Jerome\'s localStorage adapter with Backbone and it works great for collections.

But, now I have a single model that I need to save. So in my model I set

Answer 1

I'm new to backbone.js too, but it looks like the persistence model is analogous to database tables. That is to say, it's designed to create/delete/read records from a table. The localStorage adapter does the same, so what you are doing there is creating a Msg "table" in localStorage, and creating a new Msg "record" each time, and the adapter gives each new Msg a unique id.

If you just have one object, it's probably easier to just use localStorage directly. The API is really straight forward:

localStorage.setItem("key","value");

Keep in mind that localStorage only deals with key/value pairs as strings, so you'd need to convert to/from string format.

Take a look a this question for more on doing that:

Storing Objects in HTML5 localStorage

Answer 2

I ran into same issue. Maybe you have something similar to this

var Settings = Backbone.Model.extend({
  localStorage: new Store("Settings"),
  defaults: { a: 1 }
});

var s = new Settings;
s.fetch();

I changed to

var s = new Settings({ id: 1 });

localStorage adapter check for id like

 case "read":    resp = model.id ? store.find(model) : store.findAll(); break;

so 0 or "" for id wont work and it will return all models in one