backbone.js - 如何设置收藏集的网址

Question

假设我有:

var Book = Backbone.Model.extend();

var Collection = Backbone.Collection.extend({
  model: Book,
  url: '/books',
  initialize: function(){
    this.fetch();
  })
})

实例化新集合时，如何更改 Collection的 url？
var AdventureBooks = new Books({ url: '/books/adventure' })不起作用

var AdventureBooks = new Books({ category: 'adventure' })

在集合定义中:
url : '/books/' + this.category也不起作用。

谢谢。

Answer 1

var Book = Backbone.Model.extend({
  "url": function() {
    return '/books/' + this.get("category");
  }
});