我有一个快速的问题。在角JS那里（如哪个对象）请问'@id'来自于从一个Rails应用程序下面的一段code的？

I have a quick question. In angular js where (like which object) does the '@id' come from in the following piece of code from a rails app?

var User = $resource("/users/:id", {id: '@id'});

我知道它设置默认的ID。

I know it sets the default id.

感谢

推荐答案

从AngularJs 文档

From the AngularJs documentation:

如果参数值是与@ pfixed则该值$ P $  参数从数据对象中提取（有用非GET  操作）。

"If the parameter value is prefixed with @ then the value of that parameter is extracted from the data object (useful for non-GET operations)."

这意味着，调用非GET操作，如帖子的时候，你可以通过ID作为对象，你在调用包括数据的领域之一。

This means that when calling a non-GET operation, like POST, you can pass the id as one of the fields of the data object you include in the call.