Ruby on rails 如何在json-Rails中包含两个嵌套的关联同级

我有这个结构

user
   -> profile
       -> address (table)
       -> workplace (table)

我有一段代码，它不能像预期的那样工作，它不能输出地址嵌套关联

def index
    @users = User.all
    render json: @users.as_json(include: 
                                  [:profile => { 
                                    :include => :address,:include =>:workplace 
                                    }
                                  ]
                                )

  end

---

我设法使它工作在这里是答案，供将来参考

def index
    @users = User.all
    render json: @users.as_json(include:
                                  [:profile => {
                                    :include => [:address,:workplace]
                                    }
                                  ]
                                )

  end

---

确保下次在问题上指定关联。说

structure

是含糊不清的。title说嵌套关联，不过还是谢谢你的提示！