# app/views/posts/index.rabl
collection @posts => :posts
attributes :id,:title,:subject
child(:user) { attributes :full_name }
node(:read) { |post| post.read_by?(@user) }

女巫返回：

{
    "posts": [
        {
            "post": {
                "id": 5,"title": "...","subject": "...","user": {
                    "full_name": "..."
                },"read": true
            }
        }
    ]
}

我想添加一些分页参数来渲染这个：

{
    "posts": [
        {
            "post": {
                "id": 5,"read": true
            }
        }
    ],"total": 42,"total_pages": 12
}

有任何想法吗？非常感谢！