Local fetch() has no complete() callback.

[Rovanion]

With the fallowing example-code with the local attribute set to true:

var Favourites = Backbone.Model.extend({
    local: true, //Only sync against LocalStorage                                                                           
    url: 'favourites',
    initialize: function(){
        var self = this;
        this.fetch().complete(function(){
            console.debug(self);
        });
    },

this.fetch().complete() is not defined. This deferred call is a function from the jQuery ajax() function. This usage was recommended to me in this Backbone bug: jashkenas/backbone#423

[Rovanion]

Neither this variant seems to be working:

var Favourites = Backbone.Model.extend({
    local: true, //Only sync against LocalStorage                                                                             
    url: 'favourites',
    initialize: function(){
        var self = this;
        this.fetch({
            success: function(){
                console.debug(self);
            }
        });
    },
});

[lucian1900]

I would expect the second to work. If it doesn't, that's a bug.

[nilbus]

Since for localstorage there's no XMLHttpRequest to pass back, you're not going to be able to hook in complete() like in your first example. The success callback is what you want.

I'm surprised that your second example didn't work. I have several tests in my fork that test both the local: true option and the success callback. This spec relies on the fetch success callback for the test to pass. I tried it with local: true on the model instead of remote: false in the fetch call, which also worked. I also rely on this fetch success callback in one of my apps that uses this plugin.

[nilbus]

I put together a jsfiddle with your code, and it seems to work. Run this, and you see the debug output in the console:

http://jsfiddle.net/nilbus/P3euQ/

[Rovanion]

Yeah that seems to work. Odd thing that I couldn't get it working in my code then. I'll close this off then.

[reubano]

If you have jquery, you can wrap the fetch in a deferred.

dfdFetch: =>
  $.Deferred((deferred) => @fetch
    success: deferred.resolve
    error: deferred.reject).promise()

And then you can do things like @dfdFetch().done(somefunc).fail(otherfunc)