title: Devise - Redirect automatically from root url if signed in
body: <p>A user named Carly is not signed up and arrives at the index page. She signs up and gets automatically redirected to the main dashboard page. The user Carly which is now named CarlyCoolness123 closes her browser and goes to eat dinner. She gets on her PC again, but this time since she only remembers the actual index page called: coolness.com, and not coolness.com/index-dashboard. I want this user to be automatically redirect to the dashboard page if the user is signed in. That means that the user can't access the index page if the user is signed in. How do I do this? I've tried a couple of things, but since I assume that you people here have a lot better understanding with this than me I assume that my mistakes don't need to be included here. </p>