- can [:api_details], User if capability?(token, :allow_read_prefs)
- can [:api_gpx_files], User if capability?(token, :allow_read_gpx)
- can [:read, :read_one], UserPreference if capability?(token, :allow_read_prefs)
- can [:update, :update_one, :delete_one], UserPreference if capability?(token, :allow_write_prefs)
+ can [:details], User if capability?(token, :allow_read_prefs)
+ can [:gpx_files], User if capability?(token, :allow_read_gpx)
+ can [:index, :show], UserPreference if capability?(token, :allow_read_prefs)
+ can [:update, :update_all, :destroy], UserPreference if capability?(token, :allow_write_prefs)