How to use plural names for nested resources? - ruby-on-rails

Question

I am using Ruby on Rails v3.2.2 and I would like to use plural names for nested resources. That is, in my config/routes.rb I have (note: "category" and "article" are sample resources):
resources :categories do
resources :articles do
collection do
get 'one'
post 'two'
put 'three'
end
member do
get 'four'
post 'five'
put 'six'
end
end
end
The above statements generates the following:
$ rake routes
one_category_articles GET /categories/:category_id/articles/one(.:format) articles#one
two_category_articles POST /categories/:category_id/articles/two(.:format) articles#two
three_category_articles PUT /categories/:category_id/articles/three(.:format) articles#three
four_category_article GET /categories/:category_id/articles/:id/four(.:format) articles#four
five_category_article POST /categories/:category_id/articles/:id/five(.:format) articles#five
six_category_article PUT /categories/:category_id/articles/:id/six(.:format) articles#six
category_articles GET /categories/:category_id/articles(.:format) articles#index
POST /categories/:category_id/articles(.:format) articles#create
new_category_article GET /categories/:category_id/articles/new(.:format) articles#new
edit_category_article GET /categories/:category_id/articles/:id/edit(.:format) articles#edit
category_article GET /categories/:category_id/articles/:id(.:format) articles#show
PUT /categories/:category_id/articles/:id(.:format) articles#update
DELETE /categories/:category_id/articles/:id(.:format) articles#destroy
categories GET /categories(.:format) categories#index
POST /categories(.:format) categories#create
new_category GET /categories/new(.:format) categories#new
edit_category GET /categories/:id/edit(.:format) categories#edit
category GET /categories/:id(.:format) categories#show
PUT /categories/:id(.:format) categories#update
DELETE /categories/:id(.:format) categories#destroy
I would like to change statements in my config/routes.rb so to generate following routers with plural names only for the category_article "part" (that is, I would like to use categories_article/categories_articles respectively instead of category_article/category_articles):
$ rake routes
# Note: I marked changes from the previous outputting with '=>'.
=> one_categories_articles GET /categories/:category_id/articles/one(.:format) articles#one
=> two_categories_articles POST /categories/:category_id/articles/two(.:format) articles#two
=> three_categories_articles PUT /categories/:category_id/articles/three(.:format) articles#three
=> four_categories_article GET /categories/:category_id/articles/:id/four(.:format) articles#four
=> five_categories_article POST /categories/:category_id/articles/:id/five(.:format) articles#five
=> six_categories_article PUT /categories/:category_id/articles/:id/six(.:format) articles#six
=> categories_articles GET /categories/:category_id/articles(.:format) articles#index
POST /categories/:category_id/articles(.:format) articles#create
new_category_article GET /categories/:category_id/articles/new(.:format) articles#new
edit_category_article GET /categories/:category_id/articles/:id/edit(.:format) articles#edit
category_article GET /categories/:category_id/articles/:id(.:format) articles#show
PUT /categories/:category_id/articles/:id(.:format) articles#update
DELETE /categories/:category_id/articles/:id(.:format) articles#destroy
categories GET /categories(.:format) categories#index
POST /categories(.:format) categories#create
new_category GET /categories/new(.:format) categories#new
edit_category GET /categories/:id/edit(.:format) categories#edit
category GET /categories/:id(.:format) categories#show
PUT /categories/:id(.:format) categories#update
DELETE /categories/:id(.:format)

Answer 1

If you aren't satisfied with the provided helpers then you can use the magic:
<%= link_to 'One', [:one, #category, Article] %>
# /categories/123/articles/one
<%= link_to 'Four', [:four, #category, #article] %>
# /categories/123/articles/456/four
<%= link_to 'Edit the article', [:edit, #category, #article] %>
# /categories/123/articles/456/edit
<%= link_to 'All articles for the category', [#category, Article] %>
# /categories/123/articles
The very same approach can be used to specify the :url option for the form_for helper.
I hope you got the idea!
P.S. Note the using of a class (like Article) to specify that you want to see all records and using of a model instance (like #article) to say that you are about to see one article.