Description:

Generates a scaffolded controller, its seven RESTful actions and related
views. Pass the model name, either CamelCased or under_scored. The
controller name is retrieved as a pluralized version of the model name.

To create a controller within a module, specify the model name as a
path like 'parent_module/controller_name'.

This generates a controller class in app/controllers and invokes helper,
template engine and test framework generators.

Example:

`bin/rails generate scaffold_controller CreditCard`

Credit card controller with URLs like /credit_cards.
    Controller: app/controllers/credit_cards_controller.rb
    Test:       test/controllers/credit_cards_controller_test.rb
    Views:      app/views/credit_cards/index.html.erb [...]
    Helper:     app/helpers/credit_cards_helper.rb