I am implementing an admin subdomain and have googled to try and find the answer to this, however I have not found another instance.
My routes look like this for the subdomain section:
constraints :subdomain => 'admin' do
scope :module => "admin" do
resources :news, :events
match 'news', :to => 'news#index', :as => 'news'
root :to => "dashboard#index"
end
end
Events works fine, but for some reason in order for news to work I need to add a specific route to match it. It may help to show the partial where the error is generated (admin/shared/menu):
<ul>
<li><%= link_to 'Home', root_path, :class => "#{current_class?(root_path)}" %></li>
<li><%= link_to 'News', news_path, :class => "#{current_class?(news_path)}" %></li>
<li><%= link_to 'Events', events_path, :class => "#{current_class?(events_path)}" %></li>
<div class="clearboth"></div>
</ul>
And then the error if I was to remove the match route:
No route matches {:action=>"show", :controller=>"admin/news"} missing required keys: [:id]
I just don't have a clue why, any thoughts?
I found that this is an issue with rails in that the naming convention news should not be used due to plural issues, news -> new so therefore I had to rename everything to articles instead. Oversight on my part, a tad stupid.
The reason Rails gets confused is because "news" is used for both the singular and plural. news'.singularize gives news; and news.pluralize also gives news (Wikipedia has a longer description of this phenomenon; there are other words that do the same).
Rails will generate a news_path route (plural, for the index action) and a news_path route (singular, for the show action).
The singular route expects a News instance; it appears that the show action is defined later, and overwrites the index action, resulting in the strange behaviour.
The solution is simple: use the news_index_path if you want the index action. I haven't encountered any other issues, and am still using the News model.
ActiveAdmin fixed this issue in the same way.
If you really don't want to use News, then you can suffix it with Item, Entry, Object, or a similar word. This will leave you with a NewsItem model with news_item_path and news_items_path.
