没有路线匹配缺少必需的键：[：永久链接]

Question

嗨我正在轨4.2.5,红宝石2.3.1p112。

我面临这个错误缺少必需的密钥永久链接。

错误消息：

No route matches {:action=>"show", :controller=>"product_categories", :requirements=>{:id=>/[^.?]/}} missing required keys: [:permalink] 

我的视图（错误的）

= link_to top_level.name, product_category_path,:permalink => top_level.permalink, :title => "Shop Designer Brands in #{top_level.name}", "data-tracking-event" => "PCInHeader", "data-label" => top_level.name, :class => "gaevent" 

我的路线

match "/catalog/*permalink" => "product_categories#show", :as => "product_category", :via => [:get], :requirements => { :id => /[^.?]/ } 

帮助了我去解决这个问题？

Answer 1

通permalink哈希作为参数的URL帮手

= link_to top_level.name, product_category_path(permalink: top_level.permalink), title: "Shop Designer Brands in #{top_level.name}", "data-tracking-event" => "PCInHeader", "data-label" => top_level.name, :class => "gaevent" 

希望帮助！

Answer 2

根本就product_category_path（永久：永久）作为第一个放慢参数被认为是Id，然而在这里，你需要永久链接，而不是ID