Question

我有一个名为score的模型和一个名为scores的集合。但是，该模型似乎不是从父集合继承localStorage属性（或者就此而言，任何属性）。我在这里错过了什么吗？

使用RequireJS运行Backbone。

模型/ score.js

define([
    'underscore',
    'backbone',
    'localstorage'
], function(_, Backbone, Store){
    var ScoreModel = Backbone.Model.extend({
        defaults: {
            board_id: null,
            ns_pair: null,
            ew_pair: null,
            ns_score: null
        },
        validate: function(attrs, options){
            if( isNaN(attrs.board_id) || attrs.board_id < 1 ){
                return 'Invalid Board ID!';
            }
        },
        localStorage: new Store("ScoreCollection")
    });
    return ScoreModel;
});

集合/ scores.js

define([
    'underscore',
    'backbone',
    'models/score',
    'localstorage'
], function(_, Backbone, ScoreModel, Store){
    var ScoreCollection = Backbone.Collection.extend({
        model: ScoreModel,
        localStorage: new Store("ScoreCollection")
    });
    return ScoreCollection;
});

main.js

require.config({
  paths: {
    // Major libraries
    jquery: 'libs/jquery/jquery.min',
    underscore: 'libs/underscore/underscore.min',
    backbone: 'libs/backbone/backbone.min',

    // Require.js plugins
    text: 'libs/require/text',

    // Backbone.js plugins
    localstorage: 'libs/backbone/localstorage',

    // Just a short cut so we can put our html outside the js dir
    // When you have HTML/CSS designers this aids in keeping them out of the js directory
    templates: '../templates'
  }
});

// Let's kick off the application

require([
  'app'
], function(App){
  App.initialize();
});

Answer 1

Backbone模型不会从Backbone Collections继承。它们只是您使用自己的属性和方法'扩展'的基础Backbone.Model的扩展。收藏，同样的交易。您可以指定集合的模型基于您定义的特定模型，以便在将集合添加到集合时，它使用模型构造函数为该集合中的每个模型创建实例，但那里没有直接继承关系。如果符合您的需要，您可以在模型上定义恰好是集合实例的属性。

Backbone.js Model不从集合继承

1 个答案: