comment reminder about indexing database
TODO comment about verifying compatibility across languages
Appointment#open_or_booked scope
Appointments#index only uses open_or_booked scope with TODO reminder about grouping by dates
appointments index view shows statuses as Reserved or Available
TODO comment about Unfilled appointments
Appointments controller index shows only upcoming
appointment#upcoming scope
appointment.rb #display_local_start_time and #display_local_end_time methods, used in appointments index view
temporary appointments controller#update method, checks if current_user