Rails：从子域链接到主域并返回答案

【问题标题】：Rails: Linking from Subdomain to Main Domain and BackRails：从子域链接到主域并返回
【发布时间】：2016-10-31 22:06:10
【问题描述】：

我有一个应用程序，其子域适用于共享同一域的不同人（即www.liz.domain.com、www.anthony.domain.com 等）。我需要创建从一个子域到主域并返回的链接，但不知道如何使其工作。我的路线是这样的：

Rails.application.routes.draw do
    constraints subdomain: 'liz' do
        scope module: 'liz', as: 'liz' do
            get 'home/index'
            root 'home#index'
            resources :inquiries
            get 'services/hire'
            get 'services/dev'
            get 'services/design'
            get 'services/branding'
            get 'services/portfolio'
        end
    end

    constraints subdomain: 'anthony' do
        scope module: 'anthony', as: 'anthony' do
            get 'home/index'
            root 'home#index'
        end
    end

    get 'home/index'
    root 'home#index'
end

当我rake routes 时，结果是这样的：

                Prefix Verb   URI Pattern                   Controller#Action
        liz_home_index GET    /home/index(.:format)         liz/home#index {:subdomain=>"liz"}
              liz_root GET    /                             liz/home#index {:subdomain=>"liz"}
         liz_inquiries GET    /inquiries(.:format)          liz/inquiries#index {:subdomain=>"liz"}
                       POST   /inquiries(.:format)          liz/inquiries#create {:subdomain=>"liz"}
       new_liz_inquiry GET    /inquiries/new(.:format)      liz/inquiries#new {:subdomain=>"liz"}
      edit_liz_inquiry GET    /inquiries/:id/edit(.:format) liz/inquiries#edit {:subdomain=>"liz"}
           liz_inquiry GET    /inquiries/:id(.:format)      liz/inquiries#show {:subdomain=>"liz"}
                       PATCH  /inquiries/:id(.:format)      liz/inquiries#update {:subdomain=>"liz"}
                       PUT    /inquiries/:id(.:format)      liz/inquiries#update {:subdomain=>"liz"}
                       DELETE /inquiries/:id(.:format)      liz/inquiries#destroy {:subdomain=>"liz"}
     liz_services_hire GET    /services/hire(.:format)      liz/services#hire {:subdomain=>"liz"}
      liz_services_dev GET    /services/dev(.:format)       liz/services#dev {:subdomain=>"liz"}
   liz_services_design GET    /services/design(.:format)    liz/services#design {:subdomain=>"liz"}
 liz_services_branding GET    /services/branding(.:format)  liz/services#branding {:subdomain=>"liz"}
liz_services_portfolio GET    /services/portfolio(.:format) liz/services#portfolio {:subdomain=>"liz"}
    anthony_home_index GET    /home/index(.:format)         anthony/home#index {:subdomain=>"anthony"}
          anthony_root GET    /                             anthony/home#index {:subdomain=>"anthony"}
            home_index GET    /home/index(.:format)         home#index
                  root GET    /                             home#index

我尝试使用主域中的<%= link_to "Liz's Page", liz_root_path(subdomain: 'liz') %> 或<%= link_to "Liz's Page", liz_root_path %>（没有子域），但都没有链接到子域。

同样，我在子域内的页面中尝试了<%= link_to "Main Page", root_path %>，它只是链接到子域的主页，而不是站点根目录。

谁能告诉我如何在子域/主域之间来回链接？

【问题讨论】：

标签： ruby-on-rails

【解决方案1】：

我最终将这些从 path 更改为 url 以解决问题。

这样<%= link_to "Liz's Page", liz_root_path(subdomain: 'liz') %> 变成了<%= link_to "Liz's Page", liz_root_url(subdomain: 'liz') %> 并且工作正常。

【讨论】：

后面呢？在liz子域中，如何链接到域？