This is how it looks in the example in the Puma README
@@ -13,7 +13,9 @@ workers ENV.fetch('WEB_CONCURRENCY') { 2 }
preload_app!
on_worker_boot do
- ActiveRecord::Base.establish_connection if defined?(ActiveRecord)
+ ActiveSupport.on_load(:active_record) do
+ ActiveRecord::Base.establish_connection
+ end
end
plugin :tmp_restart