Question

I have a Backbone collection and when I add a new model to it the “add” event doesn’t seem to work as I’d expect. I’ve bound 2 views to listen for add events on the collection, but only one seems to get notified of the event, and when this happens, no PUT request is sent to my server. When I remove the second bind, the other one works and the PUT request is sent. Here’s the code snippets:

    var FlagList = Backbone.Collection.extend({
    model: Flag  // model not shown here... let me know if it would help to see
});

    var FlagCollectionView = Backbone.View.extend({
    el: $('ul.#flags'),
    initialize: function() {
        flags.bind('add', this.addFlag, this);  // this one doesn't fire!!
    },
    addFlag: function(flag) {
        alert("got it 1");  // I never see this popup
    }
});

    var AddFlagView = Backbone.View.extend({
    el: $("#addFlagPopup"),
    events: {
        "click #addFlag": "addFlag"
    },
            initialize: function() {
                    flags.bind('add', this.closePopup, this);   // this one fires!!
            }
    addFlag: function() {
        flags.create(new Flag);
    },
    closePopup: function() {
        alert("got it 2");  // I see this popup
    }
});

var flags = new FlagList;
var addFlagView = new AddFlagView;
var flagCollectionView = new FlagCollectionView;

Answer 1

This code works for me:

var FlagList = Backbone.Collection.extend({});

var FlagCollectionView = Backbone.View.extend({
  initialize: function() {
    flags.bind('add', this.addFlag, this); 
  },
  addFlag: function(flag) {
      alert("got it 1");
  }
});

var AddFlagView = Backbone.View.extend({
  initialize: function() {
    flags.bind('add', this.closePopup, this);
  },
  closePopup: function() {
    alert("got it 2");
  }
});

var flags = new FlagList;
var addFlagView = new AddFlagView;
var flagCollectionView = new FlagCollectionView;

flags.add({key:"value"});

check the jsFiddle

Your problem is somewhere else.