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# 解释上下文

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/路由.rb

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

# app/models/forum.rb

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

# 应用程序/模型/forum_topic.rb

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

# 应用程序/控制器/论坛/show.hmtl.erb

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

# link_to 正在生成什么：

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

# 我期望看到的（因为主题应该在论坛中）：

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

＃ 我究竟做错了什么？

puts "Thanks!"
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2 回答 2

1

主要路径应该是：

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

你传入的参数（@forum_topic）

link_to @forum_topic.name, forum_topic_path(@forum_topic)

有一个 :id 与之关联 (1)，因此它将显示 id=1 的论坛。您还应该传递主题 ID

forum_topic_path(@forum, @topic)

很惊讶你没有得到 id 的错误——我猜它推断出两个资源的 :id 。

于 2012-06-29T12:31:02.003 回答
1

嗨，我认为您想生成一个指向特殊论坛的特殊主题的链接。

因此，当您生成链接时，您需要 2 个 ID（ - 或 2 个实例，一个用于论坛，一个用于主题）。

link_to @forum_topic.name, forum_topic_path(@forum, @forum_topic)
于 2012-06-29T12:35:09.783 回答