Rails current_page?与 controller.controller_name 对比 [英] Rails current_page? versus controller.controller_name

问题描述

我正在实施 current_page? 以测试当前控制器和操作是否等于某个值，但是在该控制器/操作组合上它不会返回 true.

I'm implementing current_page? in a view to test if the current controller and action is equal to a certain value, however it won't return true when on that controller/action combination.

- if current_page?(:controller => 'pages', :action => 'main') 
# doesn't return true when on that controller/action combination

它工作的唯一方法是，如果我使用像这样的更详细的方法:

The only way it is working is if I use a bit more verbose method like so:

- if controller.controller_name == 'pages' && controller.action_name == 'main'
# this works just fine

是我的语法错误还是这里发生了其他事情?有没有更好的方法来做到这一点，比如设置一个 BOOL 或者这是正确的方法?

Is my syntax wrong or is there something else happening here? Is there a better way of doing this, such as setting a BOOL or is this the proper way?

最终目标是仅在主着陆页上显示某个标题，而在所有其他页面上显示不同的标题.

The end goal is to only show a certain header on the main landing page while showing a different header on all other pages.

编辑:来自rake routes的相关输出:

pages_main GET  /pages/main(.:format)  {:controller=>"pages", :action=>"main"}

root   /(.:format)   {:controller=>"pages", :action=>"main"}

此外，这是渲染时的服务器输出:

Also, this is the server output upon rendering:

Started GET "/" for 127.0.0.1 at 2011-03-03 16:54:40 -0500
Processing by PagesController#main as HTML
Rendered pages/main.html.haml within layouts/application (203.8ms)

推荐答案

current_page?(root_path) 工作正常.

但我无法使用 :controller 和 :action

看起来助手需要一个字符串，所以:

It seems the helper expects a string, so:

current_page?(url_for(:controller => 'pages', :action => 'main')) 

也很好用.

与文档的奇怪矛盾.

这篇关于Rails current_page?与 controller.controller_name 对比的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！