问题描述
这可能是一个非常简单的问题，但我有一个时间赫克找到答案。
This might be a really simple question but I'm having a heck of a time finding an answer.
，我有这样的行：
Person = Backbone.Model.extend();
然后我用从一个URL填补了收藏。对于这个例子的目的，说我有一个姓氏和名字，我想要做的事，如：
I then use that in a collection filled from a URL. For the sake of the example, say I have a first and last name, and I want to do something like:
Person = Backbone.Model.extend({
FullName: this.get("firstName") + " " + this.get("lastName")
});
我可以调用内部的骨干使用，例如，People.first（）。全名（）。但是，如果我通过People.first（），以我的观点，并呈现在一个模板，它似乎已经没有什么知识是全名。
I can call that inside backbone using, for example, People.first().FullName(). But if I pass People.first() to my view and render that in a template, it seems to have no knowledge what FullName is.
我将如何自定义属性添加到骨干模型，并使用该模板里面呢？
How would I add a custom property to a model in Backbone and use that inside a template?
干杯！
推荐答案
您全名定义没有任何意义的，所以我会认为你的真正用意这样的：
Your FullName definition doesn't make any sense so I'm going to assume that you really meant this:
Person = Backbone.Model.extend({
FullName: function() {
return this.get("firstName") + " " + this.get("lastName");
}
});
通常你会打电话给您的模型连载他们通过一个模板使用：
Usually you'll call toJSON on your models to serialize them for use by a template:
var html = template({ person: person.toJSON() })
的toJSON 简单地返回模型的内部属性的（浅）拷贝。这些属性将，presumably，同时拥有的firstName 和的lastName 属性，但全名是在模型上，这样就不会在属性的功能。
The default toJSON simply returns a (shallow) copy of the model's internal attributes. The attributes will, presumably, have both firstName and lastName properties but FullName is a function on the model so it won't be in the attributes.
您可以提供自己的的toJSON ：
toJSON: function() {
var j = _(this.attributes).clone();
j.FullName = this.FullName();
return j;
}
，然后你会在你的模板有一个全名。然而，的toJSON 也用来序列模型将数据发送到服务器;你的服务器最终将看到全名，它可能生气了一番。你可以专门增加一个序列化的模板：
and then you'd have a FullName in your template. However, toJSON is also used to serialize the model to send data to the server; your server would end up seeing a FullName and it might get upset about that. You could add another serializer specifically for templates:
// `serialize` is another common name for this
for_template: function() {
var j = this.toJSON();
j.FullName = this.FullName();
return j;
}
，然后使用该功能为您提供的模板数据：
and then use that function to supply data for your templates:
var html = template({ person: person.for_template() });
这篇关于Backbone.js的 - 如何在模板中使用自定义模型属性？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！