问题描述
我已经使用Backbone.js的写了一个模型/视图/集合。我的收藏使用fetch方法从远程服务器加载模型。此集合所需的URL需要一个ID,如:邮件/ {ID}。但我发现没有干净的方式来传递选项集合。
该Backbone.js的视图通过将其建设接受选项:视图([选项]),但集合预计,在建设模式列表:集合([机型])
什么是传递参数/选项,这个集合的最干净的方式?
缩短code:
VAR消息= Backbone.Collection.extend({
型号:消息,
网址:HTTP:// URL /消息/+ ID
});
@保罗的回答是不错的,但它也是值得注意的是,网址
属性可以是一个函数。在我看来,(它只是认为,既然最终的结果是一样的),在code是有点更清晰,如果更详细的,如果你设置中的id初始化
,并在一个函数参考吧:
VAR消息= Backbone.Collection.extend({
初始化:功能(模型,期权){
this.id = options.id;
},
网址:函数(){
回报/消息/+ this.id;
},
型号:消息,
});VAR收集=新的消息([] {ID:2});
collection.fetch();
只是为了确保,虽然 - 你是不是混淆了 ID
在这里与模型 ID
,是您? @保罗的回答,我的code以上,假设你有多个的消息
的集合,每个都有自己的ID。如果API路径 /消息/< ID>
实际上指的是一个的的消息的,而不是一组消息,那么你只需要设置网址
到 /消息/
在收集和骨干将自动使用 /消息/&LT ;编号方式>
每个模型
I have written a model/view/collection using Backbone.js. My collection uses the fetch method to load the models from a remote server. The url required for this collection needs an id like: messages/{id}. But I have found no clean way to pass options to the Collection.
The backbone.js view accepts options by passing it on construction: view([options]), but the collection expects a list of models upon construction: collection([models]).
What is the "cleanest" way of passing parameters/options to this collection?
Shortened code:
var Messages = Backbone.Collection.extend({
model: Message,
url: 'http://url/messages/' + id
});
@Paul's answer is good, but it's also worth noting that the url
attribute can be a function. In my opinion (and it's just opinion, since the end result is the same), the code is a little more legible, if more verbose, if you set the id in initialize
and the reference it in a function:
var Messages = Backbone.Collection.extend({
initialize: function(models, options) {
this.id = options.id;
},
url: function() {
return '/messages/' + this.id;
},
model: Message,
});
var collection = new Messages([], { id: 2 });
collection.fetch();
Just to make sure, though - you aren't confusing the id
here with the Model id
, are you? @Paul's answer, and my code above, assume that you have multiple Messages
collections, each with its own id. If the API path /messages/<id>
actually refers to a message, not a set of messages, then you only need to set the url
to /messages/
in the Collection, and Backbone will automatically use /messages/<id>
for each model.
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