Rails routing – :on => :collection

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Routes on collections are listed here.

The difference between :on => :collection and :on => :member are the style of route they produce and their associated route helpers.

resources :posts do
  # on collection
  get 'search', on: :collection 
  # --> generates '/posts/search' and search_posts_path

  # on member
  get 'share', on: :member      
  # --> generates'/posts/:id/share' and share_photo_path(@post)
end

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