Question

我正在尝试在像this这样的Rails中使用嵌套布局，但它无效。它显示一个空白页面。当我检查页面源代码时，它是空的。在日志中没有错：

Started GET "/" for 127.0.0.1 at 2018-03-19 16:36:30 -0300
Processing by ComingSoonController#index as HTML
  Rendering coming_soon/index.html.erb within layouts/coming
  Rendered coming_soon/index.html.erb within layouts/coming (5.1ms)
  Rendering layouts/application.html.erb
  Rendered layouts/application.html.erb (42.5ms)

控制器：

class ComingSoonController < ApplicationController
  layout 'coming'

  def index
  end
end

视图/ comming_soon / index.html.erb

<% content_for :simple_content do %>

  <div>

   content here

  </div>

<% end %>

视图/布局/ coming.html.erb

<% content_for :content do %>
  teste
  <%= yield(:simple_content) or yield %>
<% end %>
<% render :file => 'layouts/application' %>

视图/布局/ application.html.erb

<!DOCTYPE html>
<html>
  <head>
    <title>some title</title>

    <%= csrf_meta_tags %>

    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>

    <%= javascript_tag do %>
      window.userSignedIn = <%= user_signed_in? %>;
    <% end %>

    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>

    <link href="https://fonts.googleapis.com/css?family=Oswald" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css?family=Exo+2" rel="stylesheet">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <meta name="theme-color" content="#000000">
    <%= favicon_link_tag 'logo.ico' %>
  </head>

  <body>
    <p class="notice"><%= notice %></p>
    <p class="alert"><%= alert %></p>

    <% if current_user %>
      <%= link_to "Sair", destroy_user_session_path, method: :delete %>
    <% else %>
      <%= link_to "Registrar", new_user_registration_path %>
      <%= link_to "Login", new_user_session_path %>
    <% end %>

    <%= yield(:content) %>
  </body>
</html>

你知道发生了什么事吗？

谢谢

===================================

更新

解决方案：我必须更改＆lt;％render：file =＆gt; 'layouts / application'％＆gt; by＆lt;％= render template：'layouts / application'％＆gt;

Rails嵌套布局不起作用，空白页

0 个答案: