title: Rails - How to override devise SessionsController to perform specific tasks when user signs in?
body: <p>Using Devise to manage users sessions / registrations I would need to perform specific tasks (updating some fields in the users table for this specific user for example) each time a user signs in, and before he gets redirected by devise to the home page for connected users.</p>
  
  <p>Do I have to override devise SessionsController, and if yes, how?</p>