Any Rails app. A random one: Redmine. You can look at this file and browse the rest of the repository. https://github.com/redmine/redmine/blob/master/app/contr

Any Rails app. A random one: Redmine. You can look at this file and browse the rest of the repository. https://github.com/redmine/redmine/blob/master/app/controllers/issues_controller.rb https://github.com/redmine/redmine/blob/master/app/controlle...