“How” to save an entire collection in Backbone.js - Backbone.sync or jQuery.ajax?

Question

I am well aware it can be done and I\'ve looked at quite a few places (including: Best practice for saving an entire collection?). But I\'m still not clear \"exactly how\"

Answer 1

Old thread i know, what i ended up doing is the following:

Backbone.Collection.prototype.save = function (options) {
            // create a tmp collection, with the changed models, and the url
            var tmpCollection = new Backbone.Collection( this.changed() );
            tmpCollection.url = this.url;
            // sync
            Backbone.sync("create", tmpCollection, options);
        };
        Backbone.Collection.prototype.changed = function (options) {
            // return only the changed models.
            return this.models.filter( function(m){
                return m.hasChanged()
            });
        };
// and sync the diffs.
self.userCollection.save();

Pretty straint foreward :)