Rails3中：與to_param嵌套寧靜的路線倒

Question

＃解釋上下文

puts "I am learning Rails, building a simple forum application." 
puts "I am pretty satisfied to where I got so far but routes... " 
puts "...still figuring them out." 
puts "Been 2 days trying all sorts of things." 
puts "This is where I am now, and something is not working as expected." 
puts "Any help/pointers would be appreciated! :)" 

＃配置/ routes.rb中

scope "/helpcenter" do 
    resources :cat, :controller => "forums", :as => :forums do 
    resources :topics , :controller => "forum_topics", :as => :topics 
    resources :posts, :controller => "forum_posts", :as => :posts 
    end 
end 

match "/helpcenter" => "forums#index", :as => :forums 

＃應用程序/模型/ forum.rb

class Forum < ActiveRecord::Base 
    def to_param 
    "#{id}-#{name.parameterize}" 
    end 
end 

＃app/models/forum_topic.rb

class ForumTopic < ActiveRecord::Base 
    def to_param 
    "#{id}-#{name.parameterize}" 
    end 
end 

＃應用程序/控制器/論壇/ show.hmtl.erb

link_to @forum_topic.name, forum_topic_path(@forum_topic) 
# OR 
link_to @forum_topic.name, @forum_topic 

＃正在通過的link_to產生什麼：

"/helpcenter/cat/1-first-topic/topics/1-first-forum" 

＃我希望看到（因爲題目應該是論壇）：

"/helpcenter/cat/1-first-forum/topics/1-first-topic" 

＃我做錯了什麼？

puts "Thanks!" 

Answer 1

主要路徑應該是：

forum_topic_path(@forum, @topic) 
forum_topics_path(@forum) 

（@forum_topic）你

link_to @forum_topic.name, forum_topic_path(@forum_topic) 

通過帕拉姆有一個：與之相關的ID（1），所以它會顯示id = 1的論壇。你也應該傳遞主題ID

forum_topic_path(@forum, @topic) 

驚訝你沒有沒有ID得到一個錯誤 - 我猜測它推斷出：ID這兩個資源。

Answer 2

嗨，我想你想生成一個特殊論壇的特殊主題的鏈接。

因此，當您生成鏈接時，您需要2個ID（ - 或2個實例，一個用於論壇，一個用於主題）。

link_to @forum_topic.name, forum_topic_path(@forum, @forum_topic)