react-rails 与 jbuilder 不工作

Question

我尝试将 react-rails 与 jbuilder 一起使用。例如，我在 react-rails.

中使用 this great sample app of react-rails and try to rewrite to use jbuilder as a json response using reference from this part

这些是主要的重写部分：

# app/views/comments/index.html.erb
<%= react_component 'CommentBox', render(template: 'comments/index.json.jbuilder'), {prerender: true} %>

# app/views/comments/index.json.jbuilder
json.presenter do
  json.comments(@comments) do |comment|
    json.extract! comment, :id, :author
  end
  json.form do
    json.action comments_path
    json.csrf_param request_forgery_protection_token
    json.csrf_token form_authenticity_token
  end
end
json.imgSrc image_path("gundam.jpg")

但是我得到了以下错误：

Started GET "/comments" for 127.0.0.1 at 2015-04-07 18:26:40 +0900
Processing by CommentsController#index as HTML
  Comment Load (0.9ms)  SELECT  "comments".* FROM "comments"   ORDER BY "comments"."id" DESC LIMIT 5
  Rendered comments/index.json.jbuilder (8.4ms)
  Rendered comments/index.html.erb within layouts/application (34.6ms)
Completed 500 Internal Server Error in 43ms

ActionView::Template::Error (SyntaxError: Unexpected token o):
  app/views/comments/index.html.erb:3:in `_app_views_comments_index_html_erb___3472795088323540071_70123597415980'

你有解决这个错误的办法吗？提前致谢。

查看完整源代码： Use jbuilder but it gets an error · jwako/sample-react-rails-app@508d581

Answer 1

似乎引发了意外标记，因为当 this.props.presenter 已经是 JSON 对象时 CommentBox 组件正在调用 JSON.parse() in getInitialState。

您可以通过删除 getInitialState 中的 JSON.parse() 并仅返回 this.props.presenter.

来修复它

这是一个关于解析现有 JSON 对象的相关 answer。

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