method

collection

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What's this?

collection() public

To add a route to the collection:

resources :photos do
  collection do
    get 'search'
  end
end

This will enable Rails to recognize paths such as /photos/search with GET, and route to the search action of PhotosController. It will also create the search_photos_url and search_photos_path route helpers.

Show source

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 1520
        def collection
          unless resource_scope?
            raise ArgumentError, "can't use collection outside resource(s) scope"
          end

          with_scope_level(:collection) do
            path_scope(parent_resource.collection_scope) do
              yield
            end
          end
        end

collection

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