backbone.marionette cannot adapt backbone 1.2.1

[KeyHui]

Hi All

backbone.marionette 2.4.2 cannot adapt backbone 1.2.1

thank you

[ianmstew]

Hi @KeyHui, can you write up a failing test case or show some code that no longer works for you?

[KeyHui]

Hi @ianmstew

Marionette.LayoutView.extend({
initialize:function() {
this.collection = new Backbone.Collection();
// it can work
//this.listenTo(this.collection, 'add', this.addFunc);
},
collectionEvents: {
add: 'addFunc'
},
addFunc: function() {
//it cannot work
console.log('add')
},
onShow: function() {
this.collection.fetch()
}
})

I found that collectionEvents cannot work, but it can work, if I bind collection in initialize

thank you

[paulfalgout]

This is a dupe of #2605

[ianmstew]

@KeyHui thanks for clarifying--looks like this is due to a change in Backbone 1.2.1, but does not directly break Marionette documentation. For the time being, you can instead assign the collection in your constructor, like so:

constructor: function () {
  this.collection = new Backbone.Collection();
  Marionette.LayoutView.prototype.constructor.apply(this, arguments);
}

In the meantime, an upcoming enhancement will have the side effect of permitting models and collections to be assigned within initialize while using Backbone 1.2.1: #2605 (comment)