[routes]
GET /=CourseController->index

GET|POST /courses/create=          CourseController->create
GET|POST /courses/@courseid/update=CourseController->update
GET      /courses/@courseid/delete=CourseController->delete

GET|POST /courses/@courseid/modules/create=          ModuleController->create
GET|POST /courses/@courseid/modules/@moduleid/update=ModuleController->update
GET      /courses/@courseid/modules/@moduleid/delete=ModuleController->delete

GET|POST /courses/@courseid/modules/@moduleid/levels/create=         LevelController->create
GET|POST /courses/@courseid/modules/@moduleid/levels/@levelid/update=LevelController->update
GET      /courses/@courseid/modules/@moduleid/levels/@levelid/delete=LevelController->delete

GET|POST /courses/@courseid/modules/@moduleid/levels/@levelid/questions/create=            QuestionController->create
GET|POST /courses/@courseid/modules/@moduleid/levels/@levelid/questions/@questionid/update=QuestionController->update
GET      /courses/@courseid/modules/@moduleid/levels/@levelid/questions/@questionid/delete=QuestionController->delete