undefined method `before_filter' for Spotlight::ExhibitsController:Class

[mephillips-durham]

After fixing the TODO in the description via a fork I succeeded in installing the gem alongside an up to date Spotlight. The rails server restarts OK, but as soon as I access the Spotlight interface in the web browser I get the above error and the following stack trace.

I appreciate this code probably cannot be expected to work now, as it's quite old, but we were looking for a simple example to sue as a starting point. Even if there's no point fixing it, recording the issue might help someone.

undefined method `before_filter' for Spotlight::ExhibitsController:Class

Rails.root: /home/vagrant/dur-spotlight

Application Trace | Framework Trace | Full Trace
cancan (1.6.10) lib/cancan/controller_resource.rb:9:in `add_before_filter'
cancan (1.6.10) lib/cancan/controller_additions.rb:15:in `load_and_authorize_resource'
spotlight (0f5a47eefe43) app/controllers/spotlight/exhibits_controller.rb:11:in `<class:ExhibitsController>'
spotlight (0f5a47eefe43) app/controllers/spotlight/exhibits_controller.rb:6:in `<module:Spotlight>'
spotlight (0f5a47eefe43) app/controllers/spotlight/exhibits_controller.rb:3:in `<main>'
<internal:/home/vagrant/.asdf/installs/ruby/3.2.2/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:38:in `require'
<internal:/home/vagrant/.asdf/installs/ruby/3.2.2/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:38:in `require'
bootsnap (1.16.0) lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
zeitwerk (2.6.12) lib/zeitwerk/kernel.rb:30:in `require'
activesupport (7.0.8) lib/active_support/inflector/methods.rb:278:in `const_get'
activesupport (7.0.8) lib/active_support/inflector/methods.rb:278:in `constantize'
activesupport (7.0.8) lib/active_support/core_ext/string/inflections.rb:74:in `constantize'
actionpack (7.0.8) lib/action_dispatch/http/request.rb:90:in `controller_class_for'
actionpack (7.0.8) lib/action_dispatch/request/utils.rb:95:in `action_encoding_template'
actionpack (7.0.8) lib/action_dispatch/request/utils.rb:83:in `encode'
actionpack (7.0.8) lib/action_dispatch/request/utils.rb:45:in `set_binary_encoding'
actionpack (7.0.8) lib/action_dispatch/http/parameters.rb:68:in `path_parameters='
actionpack (7.0.8) lib/action_dispatch/journey/router.rb:48:in `block in serve'
actionpack (7.0.8) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (7.0.8) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (7.0.8) lib/action_dispatch/routing/route_set.rb:852:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/static.rb:23:in `call'
warden (1.2.9) lib/warden/manager.rb:36:in `block in call'
warden (1.2.9) lib/warden/manager.rb:34:in `catch'
warden (1.2.9) lib/warden/manager.rb:34:in `call'
rack (2.2.8) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.8) lib/rack/etag.rb:27:in `call'
rack (2.2.8) lib/rack/conditional_get.rb:27:in `call'
rack (2.2.8) lib/rack/head.rb:12:in `call'
actionpack (7.0.8) lib/action_dispatch/http/permissions_policy.rb:38:in `call'
actionpack (7.0.8) lib/action_dispatch/http/content_security_policy.rb:36:in `call'
rack (2.2.8) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.8) lib/rack/session/abstract/id.rb:260:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/cookies.rb:704:in `call'
activerecord (7.0.8) lib/active_record/migration.rb:638:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
activesupport (7.0.8) lib/active_support/callbacks.rb:99:in `run_callbacks'
actionpack (7.0.8) lib/action_dispatch/middleware/callbacks.rb:26:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/executor.rb:14:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/debug_exceptions.rb:28:in `call'
web-console (4.2.1) lib/web_console/middleware.rb:132:in `call_app'
web-console (4.2.1) lib/web_console/middleware.rb:19:in `block in call'
web-console (4.2.1) lib/web_console/middleware.rb:17:in `catch'
web-console (4.2.1) lib/web_console/middleware.rb:17:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/show_exceptions.rb:29:in `call'
railties (7.0.8) lib/rails/rack/logger.rb:40:in `call_app'
railties (7.0.8) lib/rails/rack/logger.rb:25:in `block in call'
activesupport (7.0.8) lib/active_support/tagged_logging.rb:99:in `block in tagged'
activesupport (7.0.8) lib/active_support/tagged_logging.rb:37:in `tagged'
activesupport (7.0.8) lib/active_support/tagged_logging.rb:99:in `tagged'
railties (7.0.8) lib/rails/rack/logger.rb:25:in `call'
sprockets-rails (3.4.2) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/remote_ip.rb:93:in `call'
request_store (1.5.1) lib/request_store/middleware.rb:19:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/request_id.rb:26:in `call'
rack (2.2.8) lib/rack/method_override.rb:24:in `call'
rack (2.2.8) lib/rack/runtime.rb:22:in `call'
activesupport (7.0.8) lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/server_timing.rb:61:in `block in call'
actionpack (7.0.8) lib/action_dispatch/middleware/server_timing.rb:26:in `collect_events'
actionpack (7.0.8) lib/action_dispatch/middleware/server_timing.rb:60:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/executor.rb:14:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/static.rb:23:in `call'
rack (2.2.8) lib/rack/sendfile.rb:110:in `call'
actionpack (7.0.8) lib/action_dispatch/middleware/host_authorization.rb:138:in `call'
railties (7.0.8) lib/rails/engine.rb:530:in `call'
puma (5.6.7) lib/puma/configuration.rb:252:in `call'
puma (5.6.7) lib/puma/request.rb:77:in `block in handle_request'
puma (5.6.7) lib/puma/thread_pool.rb:340:in `with_force_shutdown'
puma (5.6.7) lib/puma/request.rb:76:in `handle_request'
puma (5.6.7) lib/puma/server.rb:443:in `process_client'
puma (5.6.7) lib/puma/thread_pool.rb:147:in `block in spawn_thread'