NoMethodError in EventRatingsController#create
https://frab.apps.ecobytes.net/en/DG2016/events/5/event_rating
Did not check weather or not user is reviewer. Only delete Reservation when user has conference_role reviewer
https://frab.apps.ecobytes.net/en/DG2016/events/5/event_rating
Did not check weather or not user is reviewer. Only delete Reservation when user has conference_role reviewer