backbone.js 查看事件未触发

Question

我是一个backbone.js n00b，所以请耐心等待。

我试图使用backbone.js 动态生成联系人列表，并为每个联系人附加一个 onclick 事件处理程序，但无济于事。我的视图渲染良好，但单击事件未注册。这是我的代码：

App.Views.Contact = Backbone.View.extend({

initialize: function() {
  this.render();
},

events: {
  'click': 'select',
},

select: function(event) {
  console.log('contact selected');
},

render: function() {
  $('#contacts').append(tmplContact(this.model.toJSON()));
}

});

UPDATE：这是相应集合 UPDATE #2 的代码

App.Collections.Contact = Backbone.Collection.extend({

  initialize: function() {
    this.bind('reset', function() {
      console.log('COLLECTION RESET');
    });
  },

  model: App.Models.Contact,

  comparator: function(model) {
    return model.get('name');
  }

});

：集合初始化和填充

App.Collections.roster = new App.Collections.Contact;

function getContacts() {
    socketRequest('friends', function(data) {App.Collections.roster.reset(data)});
}

UPDATE #3：模型定义

App.Models.Contact = Backbone.Model.extend({
  initialize: function() {
    this.set({id: this.get('token')});
    this.set({avatar: parseAvatar(this.get('avatar'))});
    this.set({name: parseName(this.toJSON())});
    this.set({view: new App.Views.Contact({model: this})});
  },

  defaults: {
    username: ''
  }
});

Answer 1

您需要使用 View.el 属性才能使事件正常工作。

App.Collections.Contact = Backbone.Collection.extend({

    initialize: function() {
        this.bind('reset', function() {
            console.log('COLLECTION RESET');
        });
    },

    model: App.Models.Contact,

    comparator: function(model) {
        return model.get('name');
    },

    render: function() {
        ;
    }

});

App.Views.Contacts = Backbone.View.extend({

    el: '#contacts',

    initialize: function() {
        this.collection = new App.Collection.Contact;
        this.collection.bind('reset', this.render, this);

        var that = this;
        socketRequest('friends', function(data) {
            this.reset(data);
        });
    },

    render: function() {
        $(this.el).html('put your template here');
        this.collection.each(this.addOne, this);
        return this;
    },

    addOne: function(contact) {
        var view = new App.Views.Contact({model: contact});
        contact.view = view; // in case you need the ref on the model itself
        $(this.el).append(view.render().el);
    }

});

App.Views.Contact = Backbone.View.extend({

    el: '',

    tagName: 'div',

    events: {
        'click': 'select',
    },

    select: function(event) {
        console.log('contact selected');
    },

    render: function() {
        $(this.el).html(htmltmplContact(this.model.toJSON()));
        return this;
    }

});

对模型代码的一个小改进：
（请注意，我删除了视图创建，这很重要！）

App.Models.Contact = Backbone.Model.extend({

    parse: function(c) {
        c.id = c.token;
        c.avatar = parseAvatar(c.avatar);
        c.name = parseName(c);
        return c;
    },

    defaults: {
        username: ''
    }
});

并开始：

App.Views.roster = App.Views.Contacts;