Rails is routing my calendar_event_path backwards?

Question

Rails is giving me urls that have the ids in the wrong order. It's handing the parent id to the child and the child id to the parent.

In my routes.rb I have

resources :calendars do
  resources :events
end

which rake routes tells me is setting up good routes, e.g.

calendar_event GET    /calendars/:calendar_id/events/:id(.:format)      {:controller=>"events", :action=>"show"}

So when I ask for the path for that route from my view partial,

<%= link_to "#{event.name} @ #{event.calendar.name} #{event.calendar.year}", calendar_event_path(event) %>

it gives me a url that has the ids reversed...

http://localhost:3000/calendars/<-eventid->/events/<-calendarid->

Any help would be appreciated!!!

Edit: in my model, Event belongs_to :calendar and Calendar has_many :events. I'm also using Mongoid as my ORM, not ActiveRecord, though I hope that isn't the issue.

Answer 1

When you use the nested resource's URL helper calendar_event_path you need to provide it the calendar object (or ID) too, eg:

 calendar_event_path(event.calendar, event)

An alternative is:

 <%= link_to "#{event.name} @ #{event.calendar.name} #{event.calendar.year}", [event.calendar, event] %>