如何通过其ID从Backbone.js集合中获取模型？ [英] How do I get a model from a Backbone.js collection by its id?

问题描述

在我的应用程序中，我对数据所做的一切都基于主键，因为数据存储在数据库中。我想从基于此键的集合中获取模型。

In my app, everything I do with data is based on the primary key as the data is stored in the database. I would like to grab a model from a collection based on this key.

使用Collection.at（）需要数组索引，Collection.getByCid（）需要客户端ID骨干随机生成。

Using Collection.at() requires the array index, Collection.getByCid() requires the client ID that backbone randomly generates.

从具有给定id值的集合中获取我想要的模型的最佳方法是什么？我认为我能做的最糟糕的事情就是迭代每个项目.get（'id'），然后返回那个项目。

What is the best way to grab the model I want from the collection with the given id value? I figure the worst I could do would be to iterate over each item, .get('id'), and return that one.

推荐答案

看看get方法，它可能会有所帮助:)

Take a look at the get method, it may be of some help :)

http://backbonejs.org/#Collection-get

get collection.get（id）

从集合中获取模型，由id，cid或传入模型指定。

get collection.get(id)
Get a model from a collection, specified by an id, a cid, or by passing in a model.

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