ruby-on-rails - 在我的 Rails 应用程序中，JSON 格式的结果出现在 HTML View 响应中

Question

在 Rails 3.1 应用程序中，我有一个 Controller 使用以下代码在索引 View 中返回一组对象(子对象):

    def index
        @children = Child.all

        @base_class = "children-index"
        @title = "Your Children"

        respond_to do |format|
            format.html # children/index.html.erb
            format.json { render :json => @children }
        end
    end

index.html.erb View 是这样写的:

<h1><%= title %></h1>
<ul>
  <%= @children.each do |child| %>
    <li><%= link_to child.fullname, child_path(child) %></li>
  <% end %>
</ul>

出于某种原因，JSON 响应被放入 HTML 响应中，我无法确定原因。我的其他索引 View 都没有这个问题，它们的代码非常接近。

John Jake Smith Jr

Jane Ann Doe

[#<Child id: 1, firstname: "John", middlename: "Jake", lastname: "Smith", suffix: "Jr", gender: "Male", dob_actual: "2011-01-05", dob_expected: "2011-01-01", height: 30, weight: 40, created_at: "2011-10-28 21:32:54", updated_at: "2011-10-28 21:32:54">, #<Child id: 2, firstname: "Jane", middlename: "Ann", lastname: "Doe", suffix: "", gender: "Female", dob_actual: "2011-05-05", dob_expected: "2011-05-01", height: 30, weight: 12, created_at: "2011-11-07 18:08:54", updated_at: "2011-11-07 18:08:54">]

Answer 1

那不是 JSON，那是 inspect输出。你得到它是因为 each返回 @children而你正在使用 <%=这里:

<%= @children.each do |child| %>

你只需要这个:

<% @children.each do |child| %>