将模型添加到 Marionette CollectionView 的集合不会触发 onItemAdd 回调

Adding a model to a Marionette CollectionView's collection doesn't trigger onItemAdd callback

所以，我不确定我是否完全理解这个回调应该如何被触发。如果您采用准系统模型、集合和视图：

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PatchModel = Backbone.Model.extend({});

PatchCollection = Backbone.Collection.extend({model: PatchModel});

PatchView = Backbone.Marionette.ItemView.extend({template:'#patchview'});

PatchCollectionView = Backbone.Marionette.CollectionView.extend({
itemView:PatchView
,onItemAdded: function(itemView){
console.log("item was added");
}
});

然后像这样实例化它们：

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Patch0 = new PatchModel({});
Patch1 = new PatchModel({});
Patches = new PatchCollection();

PatchesView = new PatchCollectionView({collection:Patches,el:"dom_id"});

Patches.add(Patch0);
PatchesView.render();
Patches.add(Patch1);

PatchesView onItemAdded 回调永远不会触发。嗯……