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Ruby Build a Todo List Application with Rails 4 Build a Todo List Application with Rails 4 Viewing Todo Items: Part 1

Error: No route matches.... missing required keys: [:id]

Here is the error I'm receiving.

     No route matches {:action=>"show", :controller=>"reminder_detail", :med_reminder_id=>#<MedReminder id: 1, medication: "My Medication Name", created_at: "2014-11-25 05:57:58", updated_at: "2014-11-25 05:57:58">, :id=>nil, :format=>nil} missing required keys: [:id]

I can fix this error by changing the code from:

<%= link_to "Add Reminders", med_reminder_reminder_detail_path(med_reminder) %>
<%= link_to "Add Reminders", med_reminder_reminder_detail_path(med_reminder, :id) %>

However, this leads to a different error as it then routes to /med_reminders/3/reminder_detail/id - the 'id' being what breaks the link.

Any ideas?

3 Answers

Brandon Barrette
Brandon Barrette
20,485 Points

In your routes.rb file, what is the route that you are expecting here?

Here is how it is setup in my routes.rb - sorry for the slow response.

resources :med_reminders do
    resources :reminder_detail
end

It is a nested route so it looks like you need to pass in the :reminder_id resource as well to the path helper in the view.