Question

我正在尝试使用集合来列出来自我的api的数据。但问题是，当我使用forEach时，我调用的函数（addOne）不会运行。

我怀疑还有一些错误的做法。我的集合应该在这样的模型下保存返回的JSON吗？

Object -> models -> 0 -> attributes -> ...

我的观点：

s.Views.Fs = Backbone.View.extend({
    className: "",
    template: _.template("<%= name %>"),
    initialize: function() {

    },
    render: function() {
        this.collection.forEach(this.addOne, this);
    },
    addOne: function(f) {
        alert("a");
        var fV = new s.Views.PF({model: f});
        this.$el.append(fV.render().el);
    }
});

我的收藏：

s.Collections.FL = Backbone.Collection.extend({
    url: "api/fs/",
    model: s.Models.F,
});

我的模特：

s.Models.F = Backbone.Model.extend( {
    urlRoot: 'api/fs/',
    defaults: {
        ...
    },
    ...
    parse: function(response) {
            return response;
    },
});

我的路线（和应用程序）：

var sApp = new (Backbone.Router.extend({
    f_a: function() {
        this.fL= new s.Collections.FL();
        this.fLV= new s.Views.Fs({collection: this.fL});
        this.fL.fetch();
        this.fLV.render();
    },
});

Answer 1

在集合的视图下，this.collection.on('add', this.addOne, this);收听事件。这是测试代码的摘要（感谢提示'mu太短'）：

查看

s.Views.Fs = Backbone.View.extend({ className: "", template: _.template("<%= name %>"), initialize: function() { this.collection.on('add', this.addOne, this); this.collection.on('reset', this.render, this); }, render: function() { this.collection.forEach(this.addOne, this); }, addOne: function(f) { var fV = new s.Views.PF({model: f}); fV.render(); this.$el.append(fV.el); } });

<强> COLLECTION

s.Collections.FL = Backbone.Collection.extend({ url: "api/fs/", model: s.Models.F, });

<强> MODEL

s.Models.F = Backbone.Model.extend( { urlRoot: 'api/fs/', // No need to parse here. });

<强> ROUTER

var sApp = new (Backbone.Router.extend({ f_a: function() { this.fL= new s.Collections.FL(); this.fLV= new s.Views.Fs({collection: this.fL}); this.fLV.render(); $("#content").html(this.fLV.el); this.fL.fetch(); }, });

Backbone.js集合视图forEach不起作用

1 个答案: