Ruby on rails Rails—构建包含多个项的JSON对象

目前，我正在创建一个JSON对象，如下所示：

@comments = Array.new

comments.collect do |comment|
  @comments << {
    :id => comment.id,
    :content => html_format(comment.content),
    :created_at => comment.created_at
  }
end

@comments.to_json

这会返回如下结果：

[{"created_at":"2011-03-02T09:17:27-08:00","content":"<p>Random.......</p>","id":734}, {"created_at":"2011-03-02T09:17:27-08:00","content":"<p>asdasd.......</p>","id":714}, {"created_at":"2011-03-01T09:17:27-08:00","content":"<p>Random.......</p>","id":134}, {"created_at":"2011-03-01T02:17:27-08:00","content":"<p>dasdasdasdasd.......</p>","id":3124}]

[comments: {"created_at":"2011-03-02T09:17:27-08:00","content":"<p>Random.......</p>","id":734}, {"created_at":"2011-03-02T09:17:27-08:00","content":"<p>asdasd.......</p>","id":714}, {"created_at":"2011-03-01T09:17:27-08:00","content":"<p>Random.......</p>","id":134}, {"created_at":"2011-03-01T02:17:27-08:00","content":"<p>dasdasdasdasd.......</p>","id":3124}, last_load: "123123123123", last_view: "zxczcxzxczxc"]

这里的问题是，我需要包括一些其他不是数组的项。我希望JSON对象看起来像这样：

[{"created_at":"2011-03-02T09:17:27-08:00","content":"<p>Random.......</p>","id":734}, {"created_at":"2011-03-02T09:17:27-08:00","content":"<p>asdasd.......</p>","id":714}, {"created_at":"2011-03-01T09:17:27-08:00","content":"<p>Random.......</p>","id":134}, {"created_at":"2011-03-01T02:17:27-08:00","content":"<p>dasdasdasdasd.......</p>","id":3124}]

[comments: {"created_at":"2011-03-02T09:17:27-08:00","content":"<p>Random.......</p>","id":734}, {"created_at":"2011-03-02T09:17:27-08:00","content":"<p>asdasd.......</p>","id":714}, {"created_at":"2011-03-01T09:17:27-08:00","content":"<p>Random.......</p>","id":134}, {"created_at":"2011-03-01T02:17:27-08:00","content":"<p>dasdasdasdasd.......</p>","id":3124}, last_load: "123123123123", last_view: "zxczcxzxczxc"]

关于如何利用上面的内容并扩展它以传递除注释数组之外的其他项，有什么想法吗

---

谢谢大家!

将列表添加到哈希中，然后在哈希上调用_json

> a = [1,2,3]
 => [1, 2, 3] 
> h = {:comments => a, :foo => "bar"}
 => {:foo=>"bar", :comments=>[1, 2, 3]} 
> h.to_json
 => "{\"foo\":\"bar\",\"comments\":[1,2,3]}" 

---

我会保留@comment数组，并在其中添加我需要的任何内容。然后调用_json。