How can I render complex json in rails?

Question

I have object nav in my rails application. But the nav obj will have another nav obj.

My question is, how can i output or render json like this that nav have another sub nav and may have unlimited depth? Many thanks!!!

"nav": [
            {
                "id": 1,
                "name": "Home",
                "icon": "home",
                "nav": [{  id: 2,
                           name: "game"
                           icon: 'game'
                           etc.......

  }],

Answer 1

使用Jbuilder ， Rabl等工具。

Answer 2

jbuider is the solution for complex json.

Check the great tutorials for complex json (jbuider) -

1) jbuider Asciicast

2) jbuider customized Json