instance method `concerns`

Ruby on Rails 7.1.6

Since v4.0.13

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

concerns(*args)

Use the named concerns

resources :posts do
  concerns :commentable
end

Concerns also work in any routes helper that you want to use:

namespace :posts do
  concerns :commentable
end

Parameters

args rest

Source

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 2135
        def concerns(*args)
          options = args.extract_options!
          args.flatten.each do |name|
            if concern = @concerns[name]
              concern.call(self, options)
            else
              raise ArgumentError, "No concern named #{name} was found!"
            end
          end
        end

Defined in actionpack/lib/action_dispatch/routing/mapper.rb line 2135 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionDispatch::Routing::Mapper::Concerns

Signature

Parameters