Ruby on rails 使用backbone.js从postgreSQL数据库中获取数据

因此，无法使用保留到我的postgres db中的主干来呈现这些相册（以rails索引列表方式）：

 [#<Album id: 1, title: "abbey road", artist: "the beatles", created_at: "2013-05-24 20:35:44", updated_at: "2013-05-24 20:35:44">, #<Album id: 2, title: "Random Access Memories", artist: "Daft Punk", created_at: "2013-05-24 20:36:14", updated_at: "2013-05-24 20:36:14">, #<Album id: 3, title: "Illmatic", artist: "Nas", created_at: "2013-05-24 20:36:51", updated_at: "2013-05-24 20:36:51">] 

客户端渲染相册的我的主干部分如下所示

app.views.Home = Backbone.View.extend({

  template: JST['templates/home'],

    render: function() {
    this.$el.html(this.template());

    // Find all the albums in the system
    var albums = new app.collections.AlbumList();
    albums.fetch();
    console.log(albums);
    var _this = this;

    albums.fetch({
      success: function(albums, response, options) {
        albums.forEach(function(album) {
        _this.$el.find("#albums").append("<li><a href='#' class='album-link' data-id='" + album.id + "'>" + album.title() + "</a></li>");
        });
      }
    });

    // Add a <li> element containing a link to each profile page
    return this;
  },

});

但是当控制台记录相册时，它是一个长度为0的对象 我是不是忘了链接数据库的步骤了？谢谢

此外，这是服务器正在发送的GET请求

Started GET "/albums" for 127.0.0.1 at 2013-05-25 09:13:00 -0400
Processing by AlbumsController#index as JSON
  Album Load (0.2ms)  SELECT "albums".* FROM "albums" 
Completed 200 OK in 1ms (Views: 0.1ms | ActiveRecord: 0.2ms)

---

如果在控制台中手动执行上述SQL查询，将检索正确的信息

服务器没有返回任何信息。将其配置为使用JSON响应，可以这样解决：

  def index
    @albums = Album.all

    render :json => @albums
  end

---

像这样的谢谢！一个信息链接，但我仍然从数据库中获取对象

app.collections.AlbumList = Backbone.Collection.extend({

  model: app.models.Album,
  url: '/albums'

});

Started GET "/albums" for 127.0.0.1 at 2013-05-25 09:13:00 -0400
Processing by AlbumsController#index as JSON
  Album Load (0.2ms)  SELECT "albums".* FROM "albums" 
Completed 200 OK in 1ms (Views: 0.1ms | ActiveRecord: 0.2ms)

  def index
    @albums = Album.all

    render :json => @albums
  end