Allow up to 3 reviews and 2 expert reviews (Malmö #215)

          not event.event_ratings.where(person: @user.person).any?                  and # Did not already review

          if event.is_special_session?

            not event.conference.ss_review_deadline.past?                           and # Special Session Review Deadline not over

            (event.expert_review_reservations_count + event.ratings_by_reviewers) < 2   # Event does not have either 2 Reservations or 2 Reviews or 1 Reservation and 1 Review

            (event.expert_review_reservations_count + event.ratings_by_reviewers) < 3   # Event does not have either 2 Reservations or 2 Reviews or 1 Reservation and 1 Review

          else

            not event.conference.ip_expert_review_deadline.past?                    and # Individual Paper Review Deadline not over

            (event.expert_review_reservations_count + event.ratings_by_reviewers) < 1   # Event is neither reserved nor reviewed by an expert

            (event.expert_review_reservations_count + event.ratings_by_reviewers) < 2   # Event is neither reserved nor reviewed by an expert

          end

      end