railties/lib/rails/generators/rails/controller/USAGE
Description:
Generates a new controller and its views. Pass the controller name, either
CamelCased or under_scored, and a list of actions as arguments.
To create a controller within a module, specify the controller name as a
path like 'parent_module/controller_name'.
This generates a controller class in app/controllers and invokes helper,
template engine, assets, and test framework generators.
Examples:
`bin/rails generate controller credit_cards open debit credit close`
This generates a `CreditCardsController` with routes like /credit_cards/debit.
Controller: app/controllers/credit_cards_controller.rb
Test: test/controllers/credit_cards_controller_test.rb
Views: app/views/credit_cards/debit.html.erb [...]
Helper: app/helpers/credit_cards_helper.rb
`bin/rails generate controller users index --skip-routes`
This generates a `UsersController` with an index action and no routes.
`bin/rails generate controller admin/dashboard --parent=admin_controller`
This generates a `Admin::DashboardController` with an `AdminController` parent class.