我生成了一个Rails应用程序,并正在玩内部。以前我的application.html.erb正在渲染,但现在似乎Rails完全无视它,因为它甚至不会产生错误。
Stack Overflow上有很多关于这个问题的问题。我看过我认为的全部内容,但没有人帮助过。
我的路线:
Rails.application.routes.draw do
# static_pages from rails tutorial ch. 3
get 'static_pages/home'
get 'static_pages/help'
get 'static_pages/about'
end
这是views / layout / application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>This Title is not showing up</title>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= csrf_meta_tags %>
</head>
<body>
<p> why isnt this showing up?? </p>
<%= yield %>
</body>
</html>
这是static_pages_controller:
class StaticPagesController < ApplicationController
layout 'application' #<- I know this shouldn't be necessary, but I thought i'd try
def initialize
@locals = {:page_title => 'Default'}
end
def about
@locals[:page_title] = 'About'
render @locals
end
def help
@locals[:page_title] = 'Help'
render @locals
end
def home
@locals[:page_title] = 'Home'
render @locals
end
end
这是应用程序控制器:
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
end
没有其他布局。我的Views文件夹具有以下结构:
-Views
|-layouts
||-application.html.erb
|
|-static_pages
||-about.html.erb
||-home.html.erb
||-help.html.erb
我曾尝试在application.html.erb中故意生成错误,调用不存在的变量以及其他任何恶作剧。 Rails完全无视我,我感到不安全。
我想要做的就是在<title>
中显示页面名称,但我甚至无法正确渲染纯文本。我怎样才能使这个工作,以便我可以正确地失败获得标题中的控制器变量?
答案 0 :(得分:4)
您不应该覆盖控制器initialize
方法。这样做会破坏基类行为。
虽然我相信,只是从super
调用initialize
将解决您的问题,正确的Rails方法初始化特定操作的控制器是使用before filter代替
示例:
class StaticPagesController < ApplicationController
layout 'application'
before_action :load_locals
def load_locals
@locals = {:page_title => 'Default'}
end
...
end