Method: ActionDispatch::Routing::Mapper::Resources#member

Defined in:
actionpack/lib/action_dispatch/routing/mapper.rb

#member(&block) ⇒ Object

To add a member route, add a member block into the resource block:

resources :photos do
  member do
    get 'preview'
  end
end

This will recognize ‘/photos/1/preview` with GET, and route to the preview action of `PhotosController`. It will also create the `preview_photo_url` and `preview_photo_path` helpers.



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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 1580

def member(&block)
  unless resource_scope?
    raise ArgumentError, "can't use member outside resource(s) scope"
  end

  with_scope_level(:member) do
    if shallow?
      shallow_scope {
        path_scope(parent_resource.member_scope, &block)
      }
    else
      path_scope(parent_resource.member_scope, &block)
    end
  end
end