Handling Polymorphic Tables

Lets say I have a Booking table.

   Class Booking extends BaseModel { 
   public function bookable()
    {
        return $this->morphTo();
    }
   }

I have a polymorphic relationship - so I can have different types of Bookings.

i.e. CarBooking, BoatBooking, TrainBooking

  class CarBooking extends BaseModel {
    public function booking()
    {
        return $this->morphOne('Booking', 'bookable');
    }
  }

How do I write a BookingController that can be passed any implementation of a Booking and handle it?

i.e. at the moment I've written a CarController, BoatController, TrainController. I want to make them one controller, since the code is almost identical apart from the injection of the initial class.

Is there a Laracasts video on this topic?