#Ruby on Rails tutorial.
Sample application
Chapter http://ruby.railstutorial.org/chapters/sign-in-sign-out#sec-current_user
Starte testmiljø: bundle exec guard
Starte rails console: rails console
instance variable: @name
Lage ny controller: rails generate controller Sessions --no-test-framework $ rails generate integration_test authentication_pages
oppdater routes oppdater controller create web page