Question

我在app.js文件中定义了两个集合，如下所示：

 this.shoppingCartFullPageView.collections = {
    supplyCategoriesCollection: this.supplyCategoriesCollection,
    orderedSuppliesCollection: this.orderedSuppliesCollection
}

以下是我的观点代码：

var ShoppingCartFullPageView = Backbone.View.extend ({
    initialize: function () {
    this.listenTo(this.collection, "reset", this.render);
    },

    render: function() {
        $(this.el).html(new ShoppingCartListView ({
            collection: this.collections.supplyCategoriesCollection
        }).render().el);

        $(this.el).append(new OrderedSupplyListView ({
            collection: this.collections.orderedSuppliesCollection  
        }).render().el);

        return this;
    }
});

我有一个Backbone View，它渲染子视图，每个子视图都有自己的集合。这两个子视图正确呈现。问题出在初始化函数中。上面的代码监听两个集合上的“重置”。我想只在其中一个集合上“listenTo”“重置”。当我尝试“this.listenTo（this.collections.supplyCategoriesCollection，”reset“，this.render）;”我得到一个未定义的错误。

Answer 1

修改

您的馆藏是否已初始化？

这个怎么样：

this.shoppingCartFullPageView.collections = { supplyCategoriesCollection: new this.supplyCategoriesCollection(), orderedSuppliesCollection: new this.orderedSuppliesCollection() }

具有多个集合的骨干视图

1 个答案: