Ruby on rails 如何获取用于处理模块的url_？

我已在我的routes中安装了FullcalendarEngine.rb：

mount FullcalendarEngine::Engine , at: "/fullcalendar_engine"

resources :events,  module: 'fullcalendar_engine'

不幸的是，即使我在routes.rb中有这样的内容：

mount FullcalendarEngine::Engine , at: "/fullcalendar_engine"

resources :events,  module: 'fullcalendar_engine'

以及生成的路由：

fullcalendar_engine_path                    /fullcalendar_engine        FullcalendarEngine::Engine
events_path                     GET         /events/index(.:format)     fullcalendar_engine/events#index
event_path                      GET         /events/:id(.:format)       fullcalendar_engine/events#show
events_path                     GET         /events(.:format)           fullcalendar_engine/events#index
                                POST        /events(.:format)           fullcalendar_engine/events#create
new_event_path                  GET         /events/new(.:format)       fullcalendar_engine/events#new
edit_event_path                 GET         /events/:id/edit(.:format)  fullcalendar_engine/events#edit
event_path                      GET         /events/:id(.:format)       fullcalendar_engine/events#show
                                PATCH       /events/:id(.:format)       fullcalendar_engine/events#update
                                PUT         /events/:id(.:format)       fullcalendar_engine/events#update
                                DELETE      /events/:id(.:format)       fullcalendar_engine/events#destroy

我仍然无法将

url\u用于

（我需要这样做才能使它与

will\u paginate

）一起工作：

错误：

（{controller:'events'，action:'index'}）的RailsDevise:：Application.routes.url_ =>ActionController:：UrlGenerationError:没有路由匹配{:action=>“index”，:controller=>“events”} （{controller:'events'，action:'index'}）的FullcalendarEngine:：Engine.routes.url_ =>ActionController:：UrlGenerationError:没有路由匹配{:action=>“index”，:controller=>“events”}

当我检查模块的路径时：

FullcalendarEngine::Engine.routes.routes.collect {|journey| journey.defaults }
 => [{:controller=>"fullcalendar_engine/events", :action=>"index"}, {:action=>"get_events", :controller=>"fullcalendar_engine/events"}, {:action=>"move", :controller=>"fullcalendar_engine/events"}, {:action=>"resize", :controller=>"fullcalendar_engine/events"}, {:action=>"index", :controller=>"fullcalendar_engine/events"}, {:action=>"create", :controller=>"fullcalendar_engine/events"}, {:action=>"new", :controller=>"fullcalendar_engine/events"}, {:action=>"edit", :controller=>"fullcalendar_engine/events"}, {:action=>"show", :controller=>"fullcalendar_engine/events"}, {:action=>"update", :controller=>"fullcalendar_engine/events"}, {:action=>"update", :controller=>"fullcalendar_engine/events"}, {:action=>"destroy", :controller=>"fullcalendar_engine/events"}] 

请注意，它具有以下特性：

@defaults={:controller=>"fullcalendar_engine/events", :action=>"index"}

请注意控制器值的名称空间。这不起作用：

FullcalendarEngine::Engine.routes.url_for({:controller=>"events", :action=>"index"})
ActionController::UrlGenerationError: No route matches {:action=>"index", :controller=>"events"}

但如果我尝试为其命名，则会出现以下错误：

FullcalendarEngine::Engine.routes.url_for({:controller=>"fullcalendar_engine/events", :action=>"index"})
ArgumentError: Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true

即使添加主机也会生成错误的url：

FullcalendarEngine::Engine.routes.url_for({:controller=>"fullcalendar_engine/events", :action=>"index", host: "localhost"})
 => "http://localhost/fullcalendar_engine/" 

---

如何获取

url\u以识别路由？
您的路由需要
id
参数，因此您需要为其指定一个：

url_for(controller: 'events', action: 'show', id: 5)   # < Notice the `id`

url_for（controller:'events'，action:'show'，id:5）#<注意'id'`

此外，您发布的路由不包括
索引的路由，因此它可能不存在。如果是这样的话，其他遇到这种情况的人可能不需要
id
。我逐步阅读了Rails代码，这是我修复它的原因：

FullcalendarEngine::Engine.routes.url_for({:action=>"index", host: "localhost"}, 'fullcalendar_engine_path')

事实上，我最初并没有发布所有的路线。确实有一条索引路线。我更新了问题。