Do not add routes when actions are not specified

Since #30241, if namepsace is specified, routes will be generated even
if there is no actions.

However, it seems that this behavior is not intentionally added behavior.
As with 5.1, routes should not be generated if actions are not specified.

Fixes #32072.

2 files changed, 8 insertions, 0 deletions

diff --git a/railties/lib/rails/generators/rails/controller/controller_generator.rb b/railties/lib/rails/generators/rails/controller/controller_generator.rb
index 6d45d6e8f8..6e2495d45f 100644
--- a/railties/lib/rails/generators/rails/controller/controller_generator.rb
+++ b/railties/lib/rails/generators/rails/controller/controller_generator.rb
@@ -16,6 +16,7 @@ module Rails
 
       def add_routes
         return if options[:skip_routes]
+        return if actions.empty?
         route generate_routing_code
       end
 
diff --git a/railties/test/generators/controller_generator_test.rb b/railties/test/generators/controller_generator_test.rb
index a3218951a6..91e4a86775 100644
--- a/railties/test/generators/controller_generator_test.rb
+++ b/railties/test/generators/controller_generator_test.rb
@@ -109,4 +109,11 @@ class ControllerGeneratorTest < Rails::Generators::TestCase
       assert_match(/^  namespace :admin do\n    get 'dashboard\/index'\n    get 'dashboard\/show'\n  end$/, route)
     end
   end
+
+  def test_does_not_add_routes_when_action_is_not_specified
+    run_generator ["admin/dashboard"]
+    assert_file "config/routes.rb" do |routes|
+      assert_no_match(/namespace :admin/, routes)
+    end
+  end
 end