routing_concerns

🧩 Leverage Routing Concerns for Reusable Patterns

When multiple resources share custom member or collection actions, routing concerns DRY up your routes.rb. Define the shared pattern once and include it in multiple resource blocks.

# config/routes.rb
Rails.application.routes.draw do
  concern :commentable do
    resources :comments, only: [:index, :create, :destroy]
  end

  resources :posts, concerns: :commentable
  resources :events, concerns: :commentable
end

Routing concerns help you maintain consistency and reduce duplication across resources that share behavior.